Method and system for natural gas preparation before supplying thereof to consumer with complex natural gas energy usage, energy-cooling plant, as well as energy drive with impeller machine, gas refrigerator and ice generator

FIELD: pipeline systems for gas distribution, particularly with the use of excessive gas pressure reduced in gas-distribution stations and adapted to obtain electric energy, cold and ice without fuel combustion.

SUBSTANCE: method involves using gas cooled by expanding thereof in expander without external work performing as cooling agent to cool air in refrigerator compartments and in ice generator. Part of cold gas passes in ice generator heat-exchanger connected to energy-cooling plant outlet or to collector linked with outlet of each energy-cooling plant to obtain consumer-demanded gas temperature at ice generator outlet. System for above method implementation includes gas refrigerator with compartments and heat-exchangers arranged in each compartment. The heat-exchangers are connected one to another in series. Outlet of above heat-exchangers is connected to pipeline which conveys gas to consumer. The system is provided with at least one ice generator having heat-exchanger linked to outlet of corresponding energy-cooling plant or with collector connected to outlet of each energy-cooling plant and with pipeline adapted to convey gas to consumer. Energy-cooling plant has turboexpander and electric generator, energy drive with impeller machine, gas refrigerator and ice generator used in the system.

EFFECT: increased efficiency of gas cold usage and environmental safety.

31 cl, 5 dwg

 

The technical field

The group of inventions relates to the field of engineering and is designed for natural gas applications in mass production of mechanical energy and cold through the use of differential pressure natural gas, mainly in the places of its production, distribution and compressor stations.

Prior art

It is known the use of natural gas for generation systems mechanical energy (see, for example. Survey information. Series: "the Use of gas in the national economy". "Utilization of the potential energy of the gas at gas distribution stations and the expansion devices installations", issue 4, 1988, p.20-30; Hesaraki. "Theoretical foundations of energy use of natural gas pressure. - The bowels, 1968, str, RES; Stepanets AA "energy Saving replacement installation. The subsoil, 1999).

The essence of the known techniques is that natural gas, high pressure, direct expansion devices in an installation where the gas expands and does work, which is used to actuate various mechanisms, such as pumps, generators or transformers, energy cultivation, for example, in the accumulators. In addition, lowering the temperature of the gas, caused by its expansion, is used for cooling in vneshnepolticheskih installations. This technology improves the efficiency of use of natural gas, however, its application raises a number of problems.

One of the main problems concerns the application of known technologies and technical means to use a differential pressure of natural gas, in particular between the expansion units. The known installation, as a rule, are of complicated design to manufacture, requiring for its operation a complex auxiliary systems using various technological agents (oil, water, heat, electricity and others), and thereby makes the expansion devices installation complicated in structure, expensive and unreliable. So, for example, known expander, made in the form of power drive with blade machine, comprising a housing placed in it a rotor mounted on a shaft with bearings, the guide apparatus with pipes for supplying and discharging the working fluid (gas) and reservoir high and low pressure system shaft seal, regulation, management and protection of Pipeline transportation of oil and gas, Ed. Vautin. - M.: Nedra, 1982, p.123-126; Tap "energy Saving replacement installation, mineral resources, 1999).

In a known solution method and means for adaptation of the power drive to the volumes of gas flows at a pressure to the pits, changing in a wide range of input power drive (expansion unit), and its work is carried out at elevated rotational speeds of the rotor, i.e. at sub-optimal modes that require energy transfer, for example, the electric generator use gear with a high transmission ratio, which, as noted, complicates the installation with all the ensuing consequences.

The use of traditional shaft seal rotor-type gas-oil at high speeds of rotation of the shaft leads to the necessity of the device separate complex sealing systems, including block seal, two pump, the differential pressure regulator gas-oil, oil accumulator, heat exchanger, degasser, system return oil and gas and other

Used a full-flow turbo-expanders are highly sensitive to deviations from the calculated volume of gas passing through them and pressure. When the pressure and volume of the flowing gas through the first turboexpander is sharply reduced its capacity and efficiency, and then he stops. In addition, high-speed blade machines require correspondingly high-precision production for their production and special conditions.

The above and other disadvantages of the known technical solutions mainly eliminated in the method and device technical solutions, Zvezdnyi of patents of the Russian Federation No. 2056555 on CL F 16 H 41/00, 1996, No. 2098713 in the same class, 1996 and certificates for useful model of the Russian Federation No. 20778 from 09.04.2001,

The closest of them to the proposed method and system is a method of preparing the natural gas to supply the consumer with a comprehensive energy use of natural gas by expansion of natural gas expanders, diversion of mechanical energy expanders to drive an electric generator and transmission ohladivshegosya in the expander gas before delivering it to the consumer through the heat exchanger of the refrigeration unit, and a system for implementing this method, containing electrochemically units (ECHO), each of which includes an expander and connected with the shaft of the generator, and a refrigeration unit, a heat exchanger which is connected to the output of at least one of the ECHO and which is connected to the pipeline for gas supply to the consumer (RF patent 2098713).

Closest to the proposed energoholding unit is ECHO, containing a sealed chamber with the outlet line, installed it the expander and connected with its shaft generator, the sensor shaft speed turboexpander connected to the pipe orifice-metering device for supplying gas to the nozzles of the turboexpander, the associated regulator gas supply and an electronic unit associated with the specified sensor and R is gulation (certificate of the Russian Federation No. 20778).

The problem is that with the release of the potential energy of the gas pressure in the expander there is a change in thermodynamic parameters of the gas, which may go beyond the permissible limits for normal operation as for the expansion devices install gas piping systems and technical means of the gas consumer.

In the known solutions work expansion devices, the device operates at high gas expansion (8 to 12 times), which leads to a profound decrease in the temperature of the gas stream at the exit of the installation. In this case, if the gas to enter the installation will be brought to a temperature of 0°then the output is installed, it will reach minus 90-120°and this will require the use of special cold-resistant steels, which will sharply increase the cost of installation and the gas with the temperature cannot be transported by conventional pipelines and even more impossible to use by consumers. Therefore, in the known technical solutions heated inlet gas in the expansion devices installation of close to 100°With due produced, for example, a power plant useful thermal energy, then the gas at the outlet of the installation has a temperature of minus 10-20°and the design uses conventional stainless steel. However, as it follows from the laws of thermodynamics, derived from Landerneau installation mechanical energy and elapsed useful thermal energy (steam or hot water) is not only equal, but thermal energy exceeds mechanical on the amount of energy determined the efficiency of the heat exchanger and the need to transport the coolant to the expansion devices installation and back. Thus, this system is energetically simply unprofitable. The gas temperature at the outlet of the expansion devices installation can be increased by reducing the degree of expansion of the gas, but it will lead to underutilization of the available gas pressure. Therefore, the most similar solution was proposed (patent RF №2098713) the expansion of the gas and the extraction of energy to carry out stepped a few expanders connected in series with interstage heat supply to gas. At this temperature (minus 20-30° (C) the cold arising from the expansion of the gas in the expander may be considered not as a negative phenomenon and not to fight with him, and it is useful to use, for example, for refrigerated food storage. This will increase the efficiency of use of excessive gas pressure at pressure reducing stations (waste energy) is almost twice than when it is used only in the expansion devices installed to generate mechanical or electrical energy.

The next problem relates to technology and technical tools that will make it possible to use the cold, the way the decomposing when the expansion of the gas in between the expansion units, in particular, in the refrigerator for chilled food storage, freezers and ice makers. In a known refrigerators used as a refrigerant chemicals (ammonia, freon, etc. that are inevitable leakage which adversely affect human health and degrade the environment. Currently, the use of these refrigerants is prohibited by international bodies and are searching for new more environmentally friendly refrigerants.

Known refrigerators are complex, expensive during the construction and operation of objects that can be divided into two parts: (1) a refrigeration compressor unit with infrastructure (systems for receiving, storing, supplying coolant systems; receipt, storage, movement, circulation and regeneration of lubricating oil system cooling water, cooling, circulation or diversion drains; electrical system; buildings with heating, lighting, ventilation, water supply, Sewerage and other); 2) the actual refrigerator having a chamber for storing food, equipped with heat exchangers with air circulation, doors, lighting, corridors for the transportation of cargo, etc. In the known solutions do not use natural gas with a low temperature as the refrigerant for cooling chambers refrigerators, the purpose is the R for food storage. Natural gas is not toxic and its use as a refrigerant in combination with the expansion devices settings may allow you to create a highly efficient environmentally friendly, less costly refrigerators with a simplified structure.

Known gas cooler containing heat-shirt, camera and close the opening, and heat exchangers, air coolers (see [2] str, 198). However, it does not provide heating of the cooled gas to the temperature optimum for its normal use by the consumer.

Known ice machine containing a thermally insulated chamber, the bottom of which there is an kapleobrazovatelya with means for spraying water, placed in an insulated channel fan, a heat exchanger installed on the kapleobrazovatelya, cooling plate, placed in the chamber, and a device for receiving ice in the bottom of the camera (autospid. The USSR №411277, F 25 C 1/18, 1974). Known ice machine has a complex cooling system, and this in combination with a water spray at the bottom of the camera, you can't effectively use the entire volume of the chamber for the formation of ice.

Another problem concerns the objective inconsistent seasons produced due to the pressure drop of gas power and refrigeration needs in the cold. It is in cold BP is two years consumed the largest quantity of gas, and that means, no more gas passes through the expansion devices installed, and, consequently, produces more energy and cold, and needs in the cold at this time of course reduced. This can lead to hypothermia gas into the pipeline after the expansion devices installations, and, as mentioned above, for violations of the parameters of gas, technology and other negative consequences. To ensure that this did not happen, it is necessary to reduce the power energoholding block off one or more units), not using the energy of the portion of the gas stream that does not pass through the expansion devices installed, which is very undesirable; or to find a new technical solution to this problem.

The invention

Object of the invention is the creation of a complex technical solutions that provide the greatest efficiency technology energy utilization technology pressure drop (waste energy) source of natural gas. The method used in this technology, should be carried out using standard equipment for serial production, and the device used must be improved and standardized elements of this equipment.

The technical result is achieved by using the proposed method, system, and gas cooler, is p is increasing the efficiency of the useful life of a cold coming out of ECHO gas and maintenance on the system output gas temperature, necessary for its normal use by the consumer without special heating.

The technical result in part energoholding unit and the power drive is to ensure the ability to achieve rated power at different parameters of the gas stream.

The technical result achieved by using the proposed ice-maker, is to simplify the construction and increase the efficiency of the chamber.

The technical result is achieved in that in the method of preparing the natural gas to supply the consumer with a comprehensive energy use of natural gas by expansion of natural gas in at least one expander electrocoloring unit (ECHO), removal of the mechanical energy of each expander to drive an electric generator of the corresponding ECHO and transmission out of ECHO ohladivshegosya in the expander gas before delivering it to the consumer via at least one heat exchanger of a refrigerator according to the invention using a refrigerator with cameras, each of which is placed a heat exchanger, carry out the transmission of cold gas successively through the heat exchangers of the chambers of the refrigerator, as part of the cold gas is passed in the heat exchanger of the ice machine, connected to the output of a corresponding ECHO, or with the collector connected to the output of each ECHO, to obtain at the output of the ice machine gas temperature, ensuring its use by the consumer.

The degree of expansion of the gas in each expander choose from a condition of providing the specified gas temperature at the inlet to the heat exchangers of the refrigerator and ice machine.

In addition, when the degree of expansion of the gas in the expander or expanders are insufficient to provide a predetermined gas temperature at the entrance to the refrigerator and/or the ice machine, it is advisable to mount the offline cladopodiella respectively to the refrigerator and/or ice machine.

In addition, preferably, the system comprising, at least, one above the expander, generator, refrigerator and ice machine, connect to the source of the natural gas and pipeline to supply gas to the consumer to parallel gas pressure reducing station (GDS) to reduce the load on it and maintaining the required parameters of the gas supplied to the consumer.

When using more than one expander and in excess of the amount of gas passing through the GDS, over the quantity of gas passing through this system, it is desirable to perform the bypassing part of the gas past the system and to measure the gas temperature after mixing of the gas streams, and by reducing the temperature within the acceptable level to reduce the share of gas, etc is going through the system, by disabling part of the expanders.

The technical result is also achieved by the fact that in the system for the preparation of natural gas to supply the consumer with a comprehensive energy use natural gas containing at least one energoholding unit (ECHO), each of which includes an expander and connected with the shaft of the generator, at least one gas cooler, heat exchanger, which is connected to the output of at least one ECHO, and pipeline gas supply to the consumer, according to the invention a gas refrigerator contains a camera, each of which is placed a heat exchanger, the heat exchangers are connected to each other sequentially, and the output of heat exchangers connected to the pipeline for gas supply to the consumer, and the system is equipped with at least one ice machine, heat exchanger, which is connected to the output of a corresponding ECHO, or with the collector connected to the output of each ECHO, and pipeline gas supply to the consumer.

The technical result is also achieved by the fact that in energoholding unit that contains a sealed chamber with the outlet line, installed it the expander and connected with its shaft generator, the sensor shaft speed turboexpander connected to a pipeline for supplying gas orifice-metering device for supplying ha is and to the nozzles of the expander, associated gas supply regulator and an electronic unit associated with the specified sensor and regulator according to the invention the nozzle expander is divided into two or more groups, one group of nozzles connected to a pipeline for supplying gas through the choke-dispenser, and the other or others via a collector or through additional throttle dispenser or throttle dispensers.

In addition, the pipeline supplying gas to the expander has managed using system automation locking body with a smooth opening operation when loading the generator with fast closure signal from the control system, generated external enable or block protection when the deviation of the operating parameters of the unit and processes for the prescribed limits with simultaneous removal of the load from the generator and close the shut-off organ.

When the expander has a strength that is designed for maximum accepted level of gas pressure, and the camera has the strength, calculated at a pressure less than the highest received the degree of expansion of the gas in the expander.

On the pipeline feeding gas to the expander can be installed reducer gas to maintain a pressure not higher than required, and an outlet line connected to the camera can be set is Lena safety valves made with the possibility of operation at higher gas pressure in the chamber above the specified level, for which the calculated strength of the camera, and the total flow section more selected sections of the nozzles of the turboexpander.

The camera has dimensions that are defined based on the size of the largest generator of power used in the power series and the expander has dimensions of flow and the capacity of the conditions for the achievement of the generator rated power at the lowest set pressure of the gas at the inlet to the expander.

In addition, at the minimum, but sufficient for the development of the turboexpander given power, gas flow source orifice-metering device connected with one group of nozzles and piping for supplying gas to the expander, provided the specified locking body, and the unit is equipped with a collector connected with other groups of nozzles turboexpander and with the specified pipeline supplying gas to the expander to start, enter the generator in synchronism with the external network and the development capacity of 5-10% from nominal at the gas through the orifice-metering device for the implementation of the full load of the generator with the gas flow through the header.

When high pressure gas source, one or more chokes dosing,United with one or more groups of nozzles, attached to the manifold, is connected to the pipe for supplying gas to the expander, for the supply of gas through a throttle-spout or orifice-metering regulation of gas supply to the nozzles as at start-up and commissioning of the generator in synchronism with the grid and at the rated load and other operating modes of the unit.

In both cases, the setting of the turboexpander has parameters, namely the number and sizes of its constituent groups of nozzles and piping connecting them with the outputs of the manifold or throttle dosing calculated from the condition for the optimal efficiency when changing the gas pressure at its input 4-5 times, gas flow 4-6 times and power expander 3-4 times.

When this generator is configured to use it when starting up the machine as a motor and spin your rotor and shaft of the expander give it a voltage from the external power grid to synchronous to the mains frequency and with the possibility of moving after that, and after the gas supply nozzle expander from the motor mode to the generator mode when the equality consumed by the unit and the power produced by them and reach the nominal mode.

The technical result is also achieved by the fact that the power drive with the shoulder machine - expander containing to the STS, fixed on the shaft of the rotor with the rotor blades, fixed to the body of the nozzle directed at the blades of the rotor, throttle dispenser and gauge of frequency of rotation of the rotor shaft associated with the regulator of the gas flow through the throttle-dispenser nozzles are divided into several groups, one group of nozzles connected to a pipeline for supplying gas through the choke-dispenser, and the rest through a manifold connected to the locking body.

While the number of nozzles connected to the pipeline gas supply when the power drive, identified on the basis of the achievement of nominal power with maximum efficiency at the lowest gas pressure source.

In addition, the degree of expansion of a gas selected from the set temperature of the gas at the output of the power drive at the maximum temperature of the gas entering the power drive source.

The technical result is also achieved by the fact that in the gas refrigerator containing a thermally insulated chamber to close the opening and the heat exchangers according to the invention in each camera posted by the heat exchanger and the fan, to allow the storage of foods at different temperatures, the heat exchangers are connected in series and pipes for supplying cold gas to each heat exchanger is installed shut-off regulators with the ability to maintain lane is Oh in the course of cold gas chamber the lowest temperature and successively increasing temperatures in subsequent chambers.

In addition, each camera can be equipped with a system of temperature control associated with placed in the camera sensors, with shut-off and regulator and fan with the ability to change the flow of cold gas in the heat exchanger and/or the rotation speed of the fan depending on the set and actual temperatures in the chambers.

Moreover, insufficient low temperature cold gas, at least one camera can be connected to a standalone cladopodiella with the possibility of the fence from the camera part of the air, cooling it and returning back into the chamber to maintain the set temperature.

For periodic defrosting heat exchanger outlet piping of each heat exchanger can be connected via a stop valve with a node joining the blower hot air, and the entrance of the heat exchanger via a stop valve can be attached emission candle to exit the first heat exchanger gas, and then hot air.

In addition, the top points of each camera can be installed sensors, the concentration of methane, which is a transducer-amplifier connected to the system automation and protection, coupled with a shut-off body is installed on the pipeline supplying gas to the respective heat exchange is the IR, and exhaust ventilation system.

It is advisable to heat exchangers and pipelines placed inside the chambers, were made without detachable connections, and locking bodies located outside the chambers.

The technical result is also achieved by the fact that the ice machine containing a thermally insulated chamber in which is placed the kapleobrazovatelya with means for spraying water, placed in an insulated channel fan, a heat exchanger and a device for receiving ice at the bottom of the camera according to the invention the heat exchanger is placed in the specified insulated channel and connected to the piping inlet and outlet of the cold gas with shutoff body, said channel connected to an input with the upper part of the chamber and the exit - openings in the side walls of the camera to enter the camera cooled air.

In addition, the kapleobrazovatelya can be connected to another heat exchanger to supply water cooled cold gas.

A device for receiving ice is a drive of ice in the form placed in the lower part of the chamber vessel with sloping walls and a balancer mounted on the axle and connected with the locking device with raspikirovki and overturning drive when filled with ice due to the asymmetry of the drive shall return the freed ice drive to its original position due to the torque from the balancer and fixation of the drive.

Thus the inner surface of the camera of the ice machine and storage preferably covered wagonermichigan material, for example Teflon.

The ice machine can be supplied also placed under the drive belt conveyor and logreybeam, which is equipped with a portable dispenser for feeding him pellets of ice from the drive via belt conveyor and distributor docked other belt conveyors for laying bricks of ice on the floor lochransa on each other or on the racks.

The entrance to logrande can be combined with the release of ice from the camera, and the output of lochransa can be installed ledokolnyi unit for making briquettes of ice in the commodity ice of a given structure.

Thus, the integrated use of energy natural gas flow to the consumer carry through is attached to the pipeline of a high pressure expander, in which natural gas expands with decreasing temperature and removal of mechanical energy to drive energopotrebitel, for example, an electric generator, and then cooled gas passes through the heat exchangers of the refrigerator and ice machine, in which it is heated, its temperature increases, and then it enters the pipeline carrying gas to consumers. P and this according to the invention the gas consumers served through one or more connected in series, in parallel or in combination of expanders, measure the temperature drop of the gas stream which has passed through the expander, and depending on the value of this differential gas flow is directed either to the heat exchanger where it is heated by cooling the surrounding air, or the next sequentially connected to the expander. At the exit of the expander, in which the gas stream flows through the heat exchanger, it is advisable gas temperature to maintain the prescribed range. This can (depending on the degree of expansion of the gas in the expander) to install in the heat exchanger the heating mode gas compensating its subsequent cooling in the expander.

To solve this problem it is suggested also energoholding unit, including the expander generating mechanical energy, the consumer of mechanical energy, for example, an electric generator, a system for supplying and discharging gas control system mode of operation of the unit and other

Of these units at gas facilities proposed to create units in the form of United gas pipeline sequentially, if possible the expansion rate of the gas is greater than four, several energoholding units, each of which is in the direction of gas flow must be installed heat exchanger with the inlet and outlet pipes, with the input of the pipeline is the ode before the heat exchanger is shut-off body, and inlet and outlet piping connected to another pipe with a shut-off body for flow direction in the bypass of the heat exchanger

The degree of expansion of the gas in the expander each energoholding unit should be designed such that the temperature of the gas after expansion should be in a given interval, suitable for a direct beneficial use of cold contained in the gas stream. For example, when using arisen chill in the refrigerator for food storage gas temperature must be within minus 20-30°C. When possible expansion of gas on the object within 1.8-2.5 input expanders energoholding units included in the block, it is possible to attach the piping to one collector, which is connected to the high-pressure gas source, and outputs to a collector low pressures (i.e. in parallel), to which the pipes are attached heat exchangers refrigerator, ice machine and other users of refrigeration, after which the gas is sent through a pipeline to the consumer. When the volume of flow is greater than the passage of gas through one expander unit, and high (more than 4) relations between the pressure source and consumer of gas a few energoholding units you can attach the piping to the manifold source is the IR high-pressure gas, and for every unit and attached thereby to the source of high pressure gas, to attach one or more units with heat exchangers as described above. Thus the outputs of each of the last in this chain expander should be attached to the manifold low pressure gas from which it is sent for cold use.

In each of the above schemes connections energoholding units should be able to switch off from work as each unit, and the unit as a whole without disrupting gas supply to the consumer. This can be achieved through the bypass gas pipeline connected to the gas pipeline of high pressure and is in communication with the inlet and outlet piping of each heat exchanger. These pipelines and bypass pipeline must be installed locking elements so that in the case of reducing the pressure of the gas source or emergency that causes a stop by one or all of the units, the gas flow can be directed to bypass any of the expander and heat exchanger, the gas pipeline before the connection node of the bypass pipe must be installed block valves (reducers).

As the power drive in energoholding unit applied to the turboexpander, a blade machine, comprising a housing with piping inlet and gas outlet, a rotor with vanes mounted on the shaft associated with the motor shaft using a coupling, nozzle apparatus, divided into groups, a jet of gas after which interact with the rotor blades dispenser of the gas flow provided by piping with nozzles, the control system of the dispenser when the regulation of the gas flow, which includes the modulator with the speed sensor rotor shaft, which is connected via the electronic unit and the amplifier signal from the execution unit, which provides the required change in the flow area of the metering device at start-up, output and maintaining the nominal idle speed and change load.

Appropriate connection of the rotor shaft with the shaft of energopotrebitel to perform a synchronous radial magnetic coupling comprising two coupling halves, separated by the tight screen of a non-conductive or high resistance material, and upon placement of the expander and energopotrebitel (generator) in a sealed chamber (capsule), filled with gas, when working energoholding unit connecting shaft it is advisable to use a soft finger couplings (see a utility model certificate of the Russian Federation No. 20778).

The dispenser of the gas flow can be made in the form located in the housing surface to the company or spool inductor driven by a lever or electromagnetic system. At a sufficiently high pressure gas source, the entire flow is desirable to apply to the turboexpander through controlled dispenser gas in all modes of operation from start up to full load, and at a low pressure gas source, it is advisable to apply through the dispenser only a portion of the gas stream, i.e. to one of the groups of nozzles to ensure commissioning of the plant, output, the nominal idle speed and maintenance, synchronization of the generator with the grid and receive a partial load. Further increase in the load to be implemented through a smooth opening controlled shut-off devices and for supplying gas to the other groups of the nozzles of the turboexpander. Preferably, it is controlled shut-off device was able to open slowly (30-40), and to close quickly (0.3 to 0.5). In this case, it can be used in the protection system unit when the deviation determining parameters within the permissible limits.

Formed by expansion of the gas in the expander cold to be useful for cooling chambers of the refrigerator due to the passing of a stream of cold gas (minus 20-30° (C) a refrigerant through the heat exchangers placed in the refrigerator. And in the case of series connection of the expanders in the gas pipeline of high pressure heat exchangers refrigerators connect after every what about the expander, that is, after each stage of expansion of the gas, and with a parallel Association of several of turboexpanders them desirable to attach the piping to one manifold connected to a source of high pressure gas, and the gas outlet from each expander to connect pipelines with a different manifold low pressure, from which the gas is supplied to the exchangers, and then after heating them in the gas must be discharged into the pipeline gas supply to the consumer.

For the most complete use arise when working expanders cold, preferably in the refrigerator to have a low-temperature chamber (minus 18-20° (C)camera with a medium (7-8°C) and high temperature (or minus 2 plus 2° (C) food storage. While the heat exchangers in these chambers are connected by pipes in series, and the gas must be discharged into the pipeline of the consumer after the camera with the highest temperature.

Later in cool and cold time of year excess of cold formed when fully loaded energoholding units, used for ice production and stockpiling it for intensive use when trading chilled products in the warmer months.

For this purpose according to the invention surplus (after providing for the operation of the refrigerator) part of the flow of cold refrigerant gas is lesourne be sent to the heat exchanger ice machine in which organized process of continuous freezing of water droplets, sprayed through nozzles in the airspace of insulated camera maker. Moreover, water droplets are invited to throw out the nozzles toward or at an angle to the cold air flow coming from the heat exchanger. Drops of water after freezing down the camera and, as proposed in the invention, will be accumulated in a special pallet that after filling tipped about an axis, dumping ice cake on the conveyor by which it is moved adjacent to the ice machine logrande and placed in storage with dispenser and conveyor systems. Commodity ice given the structure of the proposed form of stored ice by crushing them with ledokolnyi units.

Thus, it is shown that the features which characterized the invention are significant and are aimed at solving common tasks in the most efficient and comprehensive use of energy differential pressure source of natural gas, i.e. the "junk" energy gas stream, which is currently in large quantities dissipeared is reduced, the gas pressure in distribution systems.

Brief description of drawings

The group of inventions is illustrated drawing of the mi, where:

figure 1 shows the block diagram of the proposed system energoholding complex;

figure 2 - energoholding complex functional diagram;

figure 3 - energoholding unit, functional diagram;

figure 4 - gas refrigerator, functional diagram;

figure 5 - the ice machine with logreybeam, functional diagram.

The preferred implementation of the inventions

Figure 1 presents a block diagram of a system that implements the proposed method, - energoholding complex showing the relationship of its components among themselves and GDS. As you can see, energoholding complex includes unit 100 of energoholding units, gas cooler 101 and the ice machine 102 with logreybeam 103. All these components are connected to gas pipelines and gas distribution station 104 (dotted line). Each object constituting energoholding complex, produces a positive effect:

- unit 100 - electricity and cold;

- gas cooler 101 - cold volumes for the storage of food products;

- ice machine 102 commodity (water) ice.

From source natural gas high pressure, after cleaning, enters the turboexpander energoholding unit in the nozzle apparatus of which the potential energy of the gas is partially converted to the kinetic energy by lowering its temperature. Streams of gas with high velocity impinges on the rotor blades of the expander, causing it to rotate, which, in turn, makes working with external objects, for example, actuates a generator. The temperature difference at inlet and outlet of the expander is determined by the degree of expansion of gas in it. Then gas as the refrigerant sent to the heat exchangers of the refrigerator or in the heat exchangers of the refrigerator and the ice machine at the same time. It depends on the amount of gas passing through the expander. The degree of expansion of the gas in each turboexpander accept the same and the amount sufficient for the desired reduction in temperature of the gas stream for the purpose of its use as a refrigerant for a refrigerator and ice machine. This temperature difference is measured, and, if necessary, for a better cooling of the gas stream is directed not to the heat exchanger of the refrigerator, and the next sequentially connected to the expander, which implement the second stage of expansion of the gas, and then sent to the heat exchangers for useful use, etc. In the case, if the differential gas pressure is insufficient for the required cooling gas flow in the chamber of the refrigerator additionally serves the air with a lower temperature from a stand-alone compressor refrigerator is dilego unit of small capacity with the so after mixing of the air cooled in the heat exchangers of the gas refrigerant, and air filed separately from this unit, the temperature in the refrigerating chamber has reached the required level.

For the most complete use of the expansion of the gas in the expander directed flow of gas in the heat exchangers of the refrigerator, i.e. to ensure the greatest gas heating, refrigerator consistently have a camera that need to support different levels of temperature. Moreover, the first source of cold gas to the expander or manifold low pressure gas is connected to the heat exchanger chamber with the low temperature circulating in her air, for example minus 18-20°With, then connect the heat exchanger chamber in which circulates the air with a higher temperature, for example 7-8°and, finally, connect the heat exchanger chamber in which circulates air with a temperature of about 0°C. Thus produce adjustable and most complete selection of cold produced by the turbo-expanders. After this the gas to the required pressure and temperature fall within the allowable range on the basis of ensuring the normal operation of equipment, technical means and equipment gas is salvage system and gas objects, send in the pipeline supplying gas to the consumer. It is known that the minimum gas consumption falls on the summer the warmest period of the year, and it was at this time most of the stress function refrigerators, and they need the maximum amount of cold. In this regard, the calculation of the supply of refrigerators cold hold at least the passage of the gas through the turbo-expanders. During this period, the ice-maker off from work or include in the work with minimal performance. When the temperature of the environment decreases the need of the refrigerator in the cold, and the gas consumption increases, consequently, increases and the gas flow from the source of high pressure to the consumer through energoholding complex. This leads to the increase of electrical power and cooling capacity, and hence to excess cold. In such periods include ice machine, which uses time-varying excess cold for ice production, which partially consume, and basically send in logrande for accumulation for the summer season, when demand is particularly high.

In parallel with a gas refrigerator and ice machine in the gas system enables the regulator of the gas flow in the bypass line between the manifold low pressure gas after turboland the ditch and pipeline gas outlet to the consumer, which supports the specified collector steady-state gas pressure slightly greater than pipeline gas outlet to the consumer while reducing the passage of gas through the fridge and ice machine. This scheme provides the most permanent and full download energoholding units, and hence the highest power generation regardless of fluctuations in the needs of the refrigerator and the ice machine in the cold gas. In that case, if the source pressure of the gas exceeds the pressure rating energoholding unit, the input set pressure reducing valve, which reduces the gas pressure at the entrance of the unit to the calculated value. According to the invention in two-stage (serial) connection energoholding units by connecting pipelines (equipped with shut-off bodies) inputs and outputs of the gas in the heat exchangers of the refrigerator and ice machine allow their functioning at work from each of the two turboexpanders, when any one working expander, as well as in the selection of gas to said heat exchangers only after the second turboexpander when two turboexpanders.

Thus, before delivery to the consumer high-pressure gas in addition to the transfer of mechanical energy you who Olney useful function of the refrigerant in the refrigeration device, and only after such integrated use its energy potential is supplied to the consumer with the required reduced pressure and allowed to process transport and use temperature. To prevent the flow of the gas directed to the consumer, with unacceptably low temperature, in the event of a material decline in its passage through the refrigerator and the ice machine on its input set the sensor temperature limiter, the pulse which is supplied to the automatic system, which is consistently off from work energoholding units to determine the gas temperature is above an acceptable level.

The system that implements the method, is a unit of energoholding units, functional diagram of which is shown in figure 2. The unit is connected to a source of high pressure gas through the supply pipe containing sequentially placed a stop valve 1, filter 2, the heat exchanger 3, block the throttle valve 4, and pipeline gas supply to consumers connected through the metering device 5 and disables the locking element 6. The pipelines connecting these elements, at points a, b, C connected piping with shutoff bodies 7. In addition, in this system are mounted two valve body 8.

The pipeline, which unites the locking bodies 7, is connected with a gas gear 9, which is installed shut-off and regulating body 10 placed at the entrance of the first energoholding the nogo Assembly, consisting of a power drive with blade machine - expander and generator. The power drive includes a choke-dispenser 11 gas expander 12, the controller 13 of the speed of rotation of the rotor shaft of the expander is mechanically or electrically connected with the throttle-dispenser 11. The shaft of the expander 12 has mounted on the rotor (blade machine) is connected, for example, by coupling the shaft of the generator 14. If at the inlet of the heat exchanger 16, the temperature of the carrier gas will not exceed 0 degrees. With that depends on the given mode of heating in the heat exchanger 16, the output of the next expander 12 will remain the same temperature gas 12-25°as on the previous output of the expander 12 and the following heat exchanger 16 external cooling device (gas refrigerator or ice machine) are implemented the same as in the previous heat exchanger 16, the conditions for effective heladosham, i.e. minus 12-25°C.

If necessary, obtain very low temperatures (minus 25-40° (C) in the cells of the external cooling devices gas, according to the above, refer to the following expander 12, bypassing the heat exchanger 16. Otherwise, if the need for cooling is less than the available cooling power, gas after treatment before entry into the system of turboexpanders will prefix is Ino heat or reduce the degree of expansion of the gas in the expander.

Due to the fact that the volume of natural gas has seasonal fluctuations, the magnitude of the permanent heladosham rely on its minimum value. For the full useful life of blagovesta unit in parallel with a gas fridge with pipeline connects the ice machine with logreybeam, which is formed by supply of ice in autumn and winter-spring periods, when cladopodiella exceeds cladophorales. Used this stock is mainly in the summer time.

Thus, before entering the consumer natural gas, high pressure except for the transfer of mechanical energy to an external device functions as a coolant external cooling device for maintaining the required temperature regime of refrigerating chambers, and in the pipe leading to the gas consumer, is supplied under low pressure and temperature, under conditions appropriate equipment used in the production of gas or gas stations.

The output of the expander 12 through the check valve 15 is connected to the inlet of the heat exchanger 16 of the pipe 17, in which the heat exchangers 16 is controlled stop valve 18. The inlet pipe 17 and outlet pipe 19 heat exchanger 16 is connected from the monitor shut-off bodies 20. This placement of the locking bodies 18 and 20 allows the gas to flow past the stage of expansion in the expander 12, to act or in the heat exchangers 16, or passing them to the next stage of expansion. Between the check valve 15 and the input pipe 17 of the heat exchanger 16 may be placed in the condensate 21, made for example in the form of a tank with a float valve, from which gas condensate on a separate line enters the total cumulative capacity.

The output line 19 of the heat exchanger 16 of the first stage gas expansion reported by pipeline with the following expansion unit 12 included in the second stage expansion of the gas containing the same structural elements as the first expansion step, as described above.

In the last stage of the expansion gas output line 19 of the heat exchanger 16 indicated by the line 22 via a stop valve 8, the metering device 5 and the locking body 6 with a gas line leading to the consumer.

The number of stages of the expansion gas is selected on the basis of the pressure of the source gas, the pressure at which the gas must pass, the consumer needs blagopryatnye and other conditions. However, the method implemented by the considered device, allows the use of some optimal number of stages of the expansion of gas for every environment e is decommission, if this device is to provide design features that characterize particular cases of its implementation.

Thus, in the structure of the unit can be entered by a bypass line 23 is connected to the main gas flow between the first gear 9 and the first locking body 10 and is in communication with the input 17 and output 19 pipelines each of the heat exchangers 16. While in the pipes 17 and 19 mounted locking bodies 24 and 25, respectively, and the bypass pipeline 23 is set to the stop bodies 26 and 27 so that in the case of reducing the pressure of the gas at the inlet of a gas pipeline or an emergency situation that caused the stop of one or more energoholding units, the gas flow can be directed to the consumer, bypassing any expander 12, and a heat exchanger 16.

The presence of the bypass pipe 23 you can use in all cases, the optimal number of units and in emergency situations acceptable modes of cooling in the cooling chambers and the inlet pressure line leading to the consumer, support by exhaust gas from the main thoroughfare of the unit in bypass pipeline.

The proposed system is energoholding complex works as follows.

The high-pressure gas when you open the shut-off body 1, after cleaning filter 2, enters the Reducto is 9, maintenance of a given constant pressure on the gas inlet in the first unit. The gear 9 of the gas stream enters through a stop valve 7 according to any one of the three pipelines connected to the supply pipe at points a, b and C.

At moderately low temperature gas or when required intensive cooling mode in the external cooling device, the gas to the gear 9 comes from point "a" feed line.

At very low temperature gas or when the need for cooling is less than the available cooling power, gas to the gear 9 comes from point "B" feed pipe through the heat exchanger where the gas is heated.

In a situation where the gas is required to send to the bypass line 23, the gas flow to the gearbox 9 is fed through the unit throttle valve 4, which gas has a significantly lower pressure and temperature than the gas entering the gear 9 of the points "a" and "b"that allows you to work in emergency mode.

In normal operation the gas through the gear 9 and the locking-regulatory body 10 passes through the throttle dispenser 11 of the power drive in the first turboexpander 12 energoholding unit, where the expansion of the gas takes place and work on the rotation shaft of the electric generator 14. At the output of the expander 12 is measured, for example, using thermoperiodicity temperature of the gas stream and depending on its value gas through the check valve 15 and the condensate 21 is directed either to the heat exchanger 16, or, if the temperature decrease is not sufficient to implement the desired operation of refrigerating chambers, the gas flow is directed to the second expander 12 to implement the next stage of the expansion gas. To do this, in the first case, cover stop valve 20 and open the body 18, and in the second case, on the contrary, when the locking bodies 24 and 25 remain open.

In order for the gas flow to bypass the expander 12, the automation system covers placed before him stop valve 10 opens the bodies 18 and 25, closes the bodies 24, 26 and 27. In this case, the gas stream enters the first heat exchanger 16, and the second stage expansion of the gas through the open stop valve 25.

In order for the stream was sent directly to the second stage expansion of a gas, bypassing the first heat exchanger 16, the automation system additionally overlaps and the locking body 18.

Finally, if you want the flow to bypass the second expander 12, the automation system overlaps the stop valve 25 and opens the stop valve 27, resulting in a gas, bypassing the expander 12 of the second stage of expansion, shall be used for the following heat exchangers 16 or bypassing them on the expander 12 of the next stage of expansion, as was the case for the expansion stage gas etc.

In the process, each EN is rgoholdinga unit controller 13 of the speed of rotation of the rotor shaft (alone or combined with a choke-dispenser 11) of the expander 12 through mechanical coupling affects the throttle dispenser 11 gas thus to control gas flow to maintain the set speed of the rotor of the expander 12.

Energoholding unit

Energoholding unit (3) includes a housing chamber (capsule) 28, in which the side members of the Foundation 29 installed the generator 30 and the expansion turbine (expander) 31, the shaft of which is connected to the shaft of the generator with clutch 32. The cables from the generator 30 is output through the shell of the capsule 28 using tokovodov 34 consisting of a metal housing, the circuit Board of electrically insulating material and sealed them in the conductive rods and sealing elements. The high-pressure gas is supplied to the expander 31 of the manifold 35 through pipelines 36, and to throttle the dispenser 38 is supplied through a separate pipeline 37 with a controllable shut-off body 39, to the manifold 35, the gas is supplied by pipeline, is also equipped with a controllable shut-off body 40. The pipe 37, through which gas is supplied to the shut-off body 39, is connected to the gas supplying pipeline to managed the locking member 40. The nodes of the control valve bodies 39 and 40 are electrically connected with the electronic unit system 49 automatics, 30 which includes the block protection unit, and electro pneumatic versions valve bodies 39 and 40, they are still bound pulse is passed by the tube with a gas-feeding pipe before entering the stop valve 40. The gas from the capsule unit 38 is diverted into the pipe through the pipe 41. In case of emergency block protection, which is contained in the automation system 49, pulses to unload the generator 30 and simultaneous emergency (less than one second) the closing of the valve bodies 39 and 40. Another performance of the gas-feeding system unit, which is used at higher gas pressures, provides for the regulation of the total amount of gas that is supplied to the expander 31 with one or more orifice-metering devices 38, which are connected by their inputs through pipes to the manifold 35 without installing the locking member 39.

The third embodiment of the gas supply system high pressure turboexpander 31 includes a block 42 to reduce stress, which on the one hand connected to the grid, and with the exciter generator and the block 43 (contactor), which connects the generator to the mains and controlled shut-off device 40, through which high-pressure gas is supplied to the collector 35 of the unit, the pipelines that connect the manifold 35 with turboexpander 31.

The power drive with the shoulder machine - expander is an integral part energoholding Assembly.

The power drive includes a housing 44, one of the above systems for supplying gas to gr is pam nozzles 47 blade of the machine 31, the rotor 45 with shoulder blades, which is mounted on the shaft 46, the bearing, throttle dispenser 38 gas (one or more), which is communicated by pipe with nozzles 47, regulatory and maintain the frequency of rotation of the rotor 45, which includes a controller 48 gas flow through the orifice-metering device 38 by means of mechanical or electromagnetic coupling, the electronic unit 49 automation systems - signal Converter, induction sensor 50 of the rotation frequency and the modulator 51.

Energoholding the power drive unit in the form of a blade of the machine is as follows. The high-pressure gas is supplied to a controlled shut-off devices 39 and 40. When the unit start pulse from system automation (start button) opens the shut-off body 39, and the gas through the orifice-metering device 38, controlled by the controller 48 of the rotation frequency of the rotor 45, enters the group of the nozzles 47. Passing through the nozzle 47, the gas expands, its pressure decreases and the speed increases, the jet of gas with high velocity impinges on the rotor blades 45 and thereby result in rotation of the shaft 46, and this shaft, in turn, causes the rotation of the driven shaft of the electric generator 30 through a coupling 32. Depending on the parameters of a gas stream that comes from a source of high pressure are included in the work all or part of the groups of nozzles 47 to achieve the nominal capacity is barb. A feature of this unit is that its efficiency does not depend on the working capacity ranging from 20 to 100%, but only on the degree of expansion of the gas in the expander 31. The control orifice-metering device 38 carries out the regulator 48, which from the electronic unit 49 of the signal Converter is supplied electronic current intensity, and hence its impact on the flow area orifice-metering device 38 is changed by the pulse weak current from the inductive sensor 50 that communicates with the modulator 51. At start-up after reaching the shaft 46 of a certain rotational speed sensor 50 begins to apply electrical impulses to the electronic unit 49 of the control system, which converts them and compares it with the setpoint to provide the nominal frequency of rotation of the shaft 46. The presence of misalignment of the actual and the nominal frequency of rotation of the shaft 46 causes the amount of current supplied to the controller 48, which respectively increases or decreases the flow area for the gas orifice-metering device 38 until then, until the nominal frequency of rotation of the shaft 46, and then the control system (from the sensor 50 to the throttle and metering device 38) has kept the nominal idling speed of the turboexpander to the electric generator 30. Next, include the block 52 synchronization frequency current generator 30 which compares the frequency of the generator current frequency of the current in the external outlet and then, acting through the block 49 to the controller 48, which is connected with the throttle-dispenser 38, and on the excitation system of the generator 30, adjusts the parameters (frequency and voltage) of the current unit under the network and puts it in synchronism with the inclusion of the minimum load of the generator 30 through the contactor 43, since the throttle-dispenser 38 has limited the flow area. After that served the external pulse (manually or with automation systems) at the opening of the main valve 40 supply of gas to the expander 12, which opens smoothly (within 30-50), gradually increasing the load on the generator 30 to the maximum value, as produced by the unit electricity through cables through tight current terminals 34, through the contactor 43 and disconnecting the cell and other devices is transmitted to the external grid. When you stop unit (Stop) the load is removed from the generator 30 and are closed simultaneously operated shut-off bodies 39, 40 and closes the throttle dispenser 38. When the deviation voltage, frequency and current of the generator, and the temperature of bearings, etc. for the specified limits pulses to the block 53 of protection, which, in turn, generates a pulse at emergency stop unit in the same way as pressing the Stop button.

At the second execution of the system is Isopoda and regulation of the mode of operation of the unit, when it is supplied with gas of a higher pressure, and possibly the entire gas stream to pass through, for example, two or three choke-dispenser 38, controlled shut-off bodies 39 before them are not installed, throttle dispenser 38 piping is attached directly to the manifold 35, to which gas is fed via a stop valve 40. Start-up and download this version of the unit, stopping and protection are performed by the same algorithm described above. In the third embodiment, when the unit is missing a controlled stop valve 39, the throttle-hopper 38 to the controller 48, the electronic unit 49, the signal Converter unit 58 synchronization, induction sensors 50, modulator 51 and the gas from the manifold 35 is supplied simultaneously to all working groups of nozzles, work energoholding unit is as follows. When starting the unit managed a stop valve 40 is closed, the generator 30 using the reduced voltage 42 is connected via the start button to the external power grid, and the rotor of the electric generator 30 shock is driven into rotation (the generator runs as a motor together with the rotor of the expander), accelerates to podsyhanii speed and then the generator (as a synchronous motor with a short-squirrel cage rotor) is in synchronism with the external e is crosett. After that, the power generator 30 current from network switches to full voltage by disabling unit 42, and supplied the impetus for opening the controlled valve body 40, which smoothly (within 30-50) opens. At the initial moment, when the gas comes out of the nozzles 47 and acts on the rotor blades 45 of the expander, current, consumed by the generator 30 from the external network, is reduced to zero, and then the current starts to go from the generator 30 to the external power grid and the load on the electric generator 30 increases to the nominal (maximum possible). Stop and protection of the unit is carried out by simultaneously removing the load from the generator 30 and the discontinuation of gas in the expander 12 by emergency (within 0.5 s) closing the controlled valve body 40, which is to guarantee the closure has an additional device (unit) 54, which works even when the power system, for example, a short circuit in the external network or turned off, the system control unit.

Gas refrigerator

Gas cooler (figure 4) contains the actual refrigerating chamber 55, in which the heat exchangers 56 with fans 64, which take the heated air is blown through heat exchangers, and this ensures cooling and air circulation in the chamber.

the gas flow into the internal cavity of the first downstream gas heat exchanger 56 (first chamber) is connected by a pipe, equipped with adjusting shut-off body 57 to the collector, which receives the cold gas from energoholding units, and the output of the heat exchanger 56 can be piped to the input serially connected heat exchanger, which is placed in the next (second) cooling chamber, where a higher temperature than the first cooling chamber. Ultimately, the gas outlet of the heat exchanger of the refrigerator pipes attached to the pipeline through which gas is supplied to the consumer.

Figure 4 shows only two of the refrigerating chamber 55 (first and second) of the refrigerator (separated transport corridor), which are placed in the heat exchanger 56. The entrance of the heat exchanger 56, which is located in the first chamber 55, a pipeline with a regulating gate valve body 57 is connected to the collector, which receives the cold gas from energoholding units, and an output pipe, equipped with a shut-off body 58 is connected to the inlet of the heat exchanger 56, which is located in the second chamber, and the outlet piping valve body 79 is connected to the pipeline gas supply to the consumer. After controlled regulator 57 pipeline gas before entry into the first chamber 55 is equipped with vent candle valve body 59, and in the transport corridor of the refrigerator (up to shut-off body is 58 in the direction of gas flow) to the pipeline gas outlet from the heat exchanger 56 is attached to the pipeline, have a shut-off body 60 and the connection node 61 source of hot air for heat exchangers 56 intervals of time. The same pipeline and discharge candle equipped and a heat exchanger disposed in the second cooling chamber. In some cases, in the first refrigerating chamber 55 may additionally served cold from stand-alone cladopodiella 62, for example, which is mounted on the trucks. This unit is connected by a duct 63, 72 with the chamber 55, through which he takes the air from the cooling chamber 55 and after cooling, returns the air back into the chamber 55. In the top spots of refrigerating chambers 55 installed sensors 68 concentration of methane, which through an electronic Converter 69 electrocutions associated with system 66 automatic control, acting on the regulating shut-off body 57. The fan motors heat exchangers 64 56 through the block 65 management associated with system 66 automation, which ensures their inclusion, control mode and stop. The refrigerating chamber 55 is equipped with remote sensors 67, which are electrically connected with the system 66 automation, which uses the pulses to impact the unit 65 controls the fan motors 64 heat exchangers to ensure the ass is Noah average air temperature in each cell. In addition, the sensors 67 temperature of the first chamber 55 through the automation system affect offline cladopodiella 62.

Gas refrigerator operates as follows. When the unit energoholding units produced electricity by expanding gas, which is cooled, the cooling temperature is determined by the degree of pressure reduction of the gas and the efficiency of the turboexpander. This cooled gas through controlled regulating a stop valve 57 is supplied to the heat exchangers 56, placed in refrigerated chambers 55, in which circulates the air, chased by fan 64 through the heat exchange surface of the apparatus 56, and thus from them given the cold cooling chambers 55, and the gas temperature at the outlet of the heat exchangers 56, respectively, increases. In the gas refrigerator can be one-, two -, and three-stage selection of cold from the incoming cold gas. In the first chamber 55 (first step), the system maintains the average temperature in the range of minus 18-20°and a second chamber, where it is the second stage of selection of cold gas, the system maintains the average air temperature within minus 7-9°and in the third stage within minus 3 plus 2°C. Are these modes the following is m follows: in the first chamber of the heat exchangers 56 are calculated on the maximum Khudobyak, i.e. heat exchange surface must be such that will maintain the set temperature of the air in the chamber at the highest temperature of the gas coming from energoholding units. Regulation of the volume of gas entering the heat exchanger 56 of the first chamber, by using the adjusting-valve body 57, the opening of which is controlled by the system 66 of automation for a given temperature level of the air in the chamber, pulse, which is supplied to it from sensors 67 temperature. The second camera is set to the same heat exchanger, as in the first chamber 55. Heat exchanger placed in the second chamber, through the pipeline when you open the shut-off body 58 enters the gas which has passed through the heat exchanger 56, is placed in the first chamber, and gave part of its cold and its temperature is correspondingly increased. The lowest temperature in the second chamber should be provided at the highest temperature of the gas entering in its heat exchanger, and the highest temperature in the second chamber should be achieved by changing the modes of operation of the fan 64 of the heat exchanger 56 to blow through them the air withdrawn from the chamber for cooling.

Regulation is possible, for example, by changing h is the frequency of rotation of the fan 64 and closing the fan. The mode of operation of the fan 64 is changed to maintain the set temperature of the air in the chamber using system 66 automatics that receives the pulse from the sensor 67 air temperature in the chamber.

After the return gas cold air in the second chamber gas from the heat exchanger flows through the open shut-off body 70 in the pipeline gas supply to the consumer. At the same time its temperature is valid for normal and safe operation of technical means of transport and use of gas consumers. Based on these conditions and ensure maximum use of the produced cold gas refrigerator is provided by the passage of a cold gas first through the heat exchangers cameras, which must be supported by the gas temperature in the range of minus 18-20°and then through the serially connected heat exchangers cameras where you want to maintain a higher temperature, for example, minus 7-9°C. When large volumes of the refrigerator in the presence of cameras with different adjustable temperature makes it possible to increase the range of products that you can accept for storage, and hence to provide the most full download the refrigerator and efficient use of the produced cold.

On the anomo the invention the design of heat exchangers and pipelines to perform without detachable connections within the premises refrigerators, i.e. cold stores and transport corridor. This ensures the safe use of cold natural gas as a refrigerant. For security guarantees, in addition, provide for the installation at the top points of the chambers 55 and in the hallway (inside) sensors 68 concentration of methane, which is passed through the block 69 their pulses at concentrations up to 1% methane in air (an explosive mixture of methane with air from 5 to 15%) in the system 66 automation, which, in turn, generates and delivers the pulses to the closing of the adjusting-valve body 57. Next, close the shut-off bodies 58 and 70 and the door opened 71 and the locking bodies 59 waste gas candles. After the release of gas from the system searches for the gas leak and its elimination. When you start the camera work open the shut-off bodies 57, 58, 70, and a stop valve 59 and the hatch 71 are closed.

Operating conditions of the refrigeration chambers 55 on heat-exchange surfaces of the apparatus 56 snow covered and at certain intervals of time must retaliate - thaw. This operation, for example, the first chamber 55 is performed in the following order. The heat exchanger 56 is disconnected from the gas system through the blocking valve bodies 57 and 58, and the gas discharge at the candle through the opened stop valve 59. Then open the shut-off body 60 on the pipeline, and to knot the 61 append the source of hot air, which passes through the pipeline, through the internal cavity of the heat exchanger 56 and through the candle when you open the shut-off body 59 to the atmosphere. It lasts as long as the heat transfer surface of the heat exchanger 56 is not cleared of nevrogennogo snow. After that, close the shut-off bodies 59 and 72, open the shut-off bodies 57 and 58 and the camera, thus, is included in the work. These same operations are performed and when the defrosting heat exchanger of the second camera and other future cameras. The cameras provide the necessary conditions for runoff water generated during the defrost heat exchanger.

Ice machine with logresolve

Ice machine (figure 5) comprises a heat-insulated chamber 73, the device 74 for feeding in the water chamber in the form of droplets of controlled size, heat exchanger with fan 75 and 76, the inner cavity of the apparatus are connected by a pipe equipped with adjusting shut-off body 77 with a source of cold gas, and the output from the pipeline gas supply to the consumer via a stop valve 94. The heat exchanger 75 is placed in the insulated channel 78 through which air from the freezer 73 is supplied to the fan 76, which blows it through the outer surface of the heat exchanger 75 and, after the air has cooled down, after going through this unit, he returns in camera channel 79 through the input unit 80, which can adjust the direction of air movement. At the bottom of the camera installing one or more tapering downwards channels and loprieno drive 81 ice, with balance wheel 85 mounted on the axis 82 fixed in the original position device 83, for example, spring, electromagnetic or other type. The inner surface of the camera maker 73 and drive ice covered water-resistant material, such as Teflon, etc. Under the drive 81 ice posted conveyor 84 which partially goes into the room lochransa (not shown). In addition, in logrande place a system of conveyors, the number and size of which is determined on the basis of size and configuration lochransa. Logrande also can be equipped with shelves for storage of briquettes and ice block for commodity ice (ledtronics). The walls and roof lochransa are made of insulating materials.

The device 74 to supply the drip of water in the chamber is connected by a pipe equipped with adjusting shut-off body 89 with water-gas heat exchanger 87, the input of which is connected to the source of cold gas pipeline, equipped with adjusting shut-off body 88. The gas outlet of the heat exchanger 87 pipeline, equipped with a shut-off body 90, is connected to truboprovodnoyi gas to the consumer.

In the chamber 73 is set sensor 91 temperature, which is electrically connected with the system 92 automation, which provides control of the adjusting shut-off body 77 and the operating mode fan 76.

In the device 74 drop set sensor 93, which is electrically connected with the system 92 automation, which controls the locking and regulators 88 and 89.

Ice machine with logreybeam work as follows.

The essence of the way of ice formation is that the drops of pre-cooled to a temperature of 0-2°in the heat exchanger 87 water that fall from nasdaw device 74, fall into a countercurrent flow of cold (temperatures down to minus 30° (C) air, which is blown into the chamber by the fan 76 of the heat exchanger 75 channel 79 and the guide pipe 80, which slows the fall of the droplets inside the camera and this increases the residence time of the droplets in the chilled air, which is sufficient for them to freeze, and in the lower tapering part of the chamber 73 and the drive 81 ice fall ice balls.

The operation of the ice machine starts with cooling air, which is located in the chamber 73. To do this, open the shut-off bodies 90 and 94, and then the start button using system automation 92 simultaneously turns on the fan 76 and adjusting shut-off body 77, through which the initial cold gas from the source is supplied in the heat exchanger 75 and 87, in this case, the sensor 91 temperature observe the decrease of the air temperature inside the chamber 73. Upon reaching the desired temperature from the sensor 91 in the system 99 automation receives a pulse, the locking bodies 88 and 89 are opened. This cold gas and water enter the heat exchanger 87, in which water is cooled to a temperature of 0 minus 2°and then the water flows through the pipeline in the device 74 drop at the outlet of nasdaw which drops that fall in the cold upward flow of air. When sufficient time in this thread, drops of water are transformed (as you move down the camera 73) in the ice balls that fall in the memory 81, mounted on the axis 82. Drive 81 ice has an asymmetrical profile with respect to the axis 83 and while it is being filled with ice balls to the upper level occurs the vertical force And the overturning moment from which more balancing moment of the counterweight 85, resulting in a slight tilt drive 81 in the direction of tipping over when it is triggered the device 83, which frees the memory 81 of the ice, he tipped around the axis 82, and an ice cake falls onto the conveyor 84, and the drive 81 ice returns to its original position under the action of the moment, which creates a counterweight 85 and is fixed device 83. Further, this paragraph shall ocess repeats. The conveyor belt 84 moves the ice briquettes to the distributor lochransa, from which by means of conveyors and lifts ice pellets are moved to their places of stacking for storage.

When preparing trademark ice using conventional techniques cut it into pieces and then pass through a correspondingly configured ledokolnyy machine, after which the trademark ice using conveyor is loaded into the vehicle and goes to the place of its intended use. If you cannot obtain for the heat exchanger 75 to the required temperature, it reduces by connecting to the ice machine offline traditional cladopodiella low power, similarly as for the gas chambers of the refrigerator.

Design requirements of the heat exchanger, piping and placement of the locking bodies in terms of exclusion detachable connections remain the same as for the gas cooler. The process heat exchanger surface is performed in the same manner and using the same means as described in relation to the gas refrigerator.

Material given above gives grounds to conclude that the proposed technical solution in the amount of six inventions (way and five devices) allows us to overcome a number of challenges for the successful application of the technology is GII increase the efficiency of use of natural gas by utilizing the differential pressure source. All this testifies to the solution of the invention.

Industrial applicability

The present invention can be applied in the means of power generation and cooling systems through the use of technological differential pressure natural gas, primarily in distribution systems, and gas and at compressor stations.

1. The method of preparation of natural gas to supply the consumer with a comprehensive energy use of natural gas by expansion of natural gas in at least one expander electrocoloring unit (ECHO), removal of the mechanical energy of each expander to drive an electric generator of the corresponding ECHO and transmission out of ECHO ohladivshegosya in the expander gas before delivering it to the consumer via at least one heat exchanger of the refrigerator, wherein the use refrigerator with cameras, each of which is placed a heat exchanger, carry out the transmission of cold gas successively through the heat exchangers of the chambers of the refrigerator, as part of the cold gas is passed into the heat exchanger ice machine connected with the release of the corresponding ECHO or a collector connected to the output of each ECHO, to obtain at the output of the ice machine gas temperature, providing its use is their consumer.

2. The method according to claim 1, characterized in that the degree of expansion of the gas in each expander choose from a condition of providing the specified gas temperature at the inlet to the heat exchangers of the refrigerator and ice machine.

3. The method according to claim 1, characterized in that when the degree of expansion of the gas in the expander or expanders are insufficient to provide a predetermined gas temperature at the entrance to the refrigerator and/or ice machine, connect offline cladopodiella respectively to the refrigerator and/or ice machine.

4. The method according to claim 1, characterized in that the system includes at least one specified expander, generator, refrigerator and ice machine, connect to the source of the natural gas and pipeline to supply gas to the consumer to parallel gas pressure reducing station (GDS) to reduce the load on it and maintaining the required parameters of the gas supplied to the consumer.

5. The method according to claim 1, characterized in that when using more than one expander and in excess of the amount of gas passing through the GDS, over the quantity of gas passing through this system, perform the bypassing part of the gas past the system, measure the gas temperature after mixing of the gas streams and by reducing the temperature within the permissible level, reduce the share of gas that passes through the system, by from the your part of the expanders.

6. System for the preparation of natural gas to supply the consumer with a comprehensive energy use natural gas containing at least one energoholding unit (ECHO), each of which includes an expander and connected with the shaft of the generator, at least one gas cooler, heat exchanger, which is connected to the output of at least one ECHO, and pipeline gas supply to the consumer, wherein the gas cooler includes cameras, each of which is placed a heat exchanger, the heat exchangers are connected to each other sequentially, and the output of the heat exchanger is connected to the pipe for gas supply to the consumer, and the system is equipped with at least one ice machine, heat exchanger, which is connected to the output of a corresponding ECHO, or with the collector connected to the output of each ECHO, and pipeline gas supply to the consumer.

7. Energoholding unit that contains a sealed chamber with the outlet line, installed it the expander and connected with its shaft generator, the sensor shaft speed turboexpander connected to a pipeline for supplying gas orifice-metering device for supplying gas to the nozzles of the turboexpander, the associated regulator gas supply and an electronic unit associated with the specified sensor and regulator, Otley is audica fact, what nozzle expander is divided into two or more groups, one group of nozzles connected to a pipeline for supplying gas through the choke-dispenser, and the other or others via a collector or through additional throttle dispenser or throttle dispensers.

8. The Assembly according to claim 7, characterized in that on the pipeline supplying gas to the expander has managed using system automation locking body with a smooth opening operation when loading the generator with fast closure signal from the control system, generated external enable or block protection when the deviation of the operating parameters of the unit and processes for the prescribed limits with simultaneous removal of the load from the generator and close the shut-off organ.

9. The Assembly according to claim 7, characterized in that the expander has a strength that is designed for maximum accepted level of gas pressure, and the camera has the strength, calculated at a pressure less than the highest received the degree of expansion of the gas in the expander.

10. The Assembly according to claim 7, characterized in that the pipeline feeding gas to the expander installed reducer gas to maintain a pressure no higher than the level for which the calculated strength of the expander, and an outlet line connected to the camera, protection from rough set is sustained fashion valves, made with the possibility of operation at higher gas pressure in the chamber above the permissible level for which the calculated strength of the camera, and the total flow section more selected sections of the nozzles of the turboexpander.

11. The Assembly according to claim 7, characterized in that the camera has dimensions that are defined based on the size of the largest generator of power used in the power series and the expander has dimensions of flow and the capacity of the conditions for the achievement of the generator rated power at the lowest set pressure of the gas at the inlet to the expander.

12. Assembly of claim 8, characterized in that at minimum, but sufficient for the development of the turboexpander given power, gas flow source orifice-metering device connected with one group of nozzles and piping for supplying gas to the expander, provided the specified locking body, and the unit is equipped with a collector connected with other groups of nozzles turboexpander and with the specified pipeline supplying gas to the expander to start, enter the generator in synchronism with the external network and the development capacity of 5-10% of nominal when gas flow through the orifice-metering device for the implementation of the full load of the generator when the additional gas supply through the collector.

13. Unit p is paragraph 10, characterized in that the high pressure gas source, two or more inductors-dispensers connected to respective groups of nozzles attached to the manifold, is connected to the pipe for supplying gas to the expander, for the supply of gas through the orifice-metering, regulating the gas supply to the nozzles as at start-up and commissioning of the generator in synchronism with the grid and at the rated load and other operating modes of the unit.

14. The Assembly according to claim 7, characterized in that the setting of the turboexpander has parameters, namely the number and sizes of its constituent groups of nozzles piping connected to the outputs of the manifold or throttle dosing calculated from the condition for the optimal efficiency when changing the gas pressure at its input 4-5 times, gas flow 4-6 times and power expander 3-4 times.

15. The Assembly according to claim 7, characterized in that the generator is made with power use it when starting up the machine as a motor and spin your rotor and shaft of the expander give it a voltage from the external power grid to synchronous to the mains frequency and with the possibility of moving after that, and after the gas supply nozzle expander from the motor mode to the generator mode when the equality consumed by the unit and barabati emeu them power and output to the nominal mode.

16. The power drive with the blade of the machine, comprising a housing, fixed on the shaft of the rotor with the rotor blades, fixed to the body of the nozzle directed at the blades of the rotor, throttle dispenser and gauge of frequency of rotation of the rotor shaft associated with the regulator of the gas flow through the throttle-dispenser, characterized in that the nozzles are divided into several groups, one group of nozzles connected to a pipeline for supplying gas through the choke-dispenser, and the rest through a manifold connected to the locking body.

17. The power drive according to item 16, wherein the number of nozzles connected to the pipeline gas supply when the power drive, identified on the basis of the achievement of nominal power with maximum efficiency at the lowest gas pressure source.

18. The power drive according to item 16, characterized in that the expansion rate of the gas is selected from the set temperature of the gas at the output of the power drive at the maximum temperature of the gas entering the power drive source.

19. Gas cooler containing thermally insulated chamber to close the opening and the heat exchanger, characterized in that each camera posted by the heat exchanger and the fan, to allow the storage of foods at different temperatures, the heat exchangers are connected in series and pipes for supplying cold gas is each heat exchanger is installed shut-off regulators with the ability to maintain in the first as the cold gas chamber the lowest temperature and successively increasing temperatures in subsequent chambers.

20. The refrigerator according to claim 19, characterized in that each chamber is equipped with a system of temperature control associated with placed in the camera sensors, with shut-off and regulator and fan with the ability to change the flow of cold gas in the heat exchanger and/or the rotation speed of the fan depending on the set and actual temperatures in the chambers.

21. The refrigerator according to claim 19, characterized in that the lack of low temperature cold gas, at least one camera connected to a standalone cladopodiella with the possibility of the fence from the camera part of the air, cooling it and returning back into the chamber to maintain the set temperature.

22. The refrigerator according to claim 19, characterized in that for periodic defrosting heat exchanger outlet piping of each heat exchanger is connected via a stop valve with a node joining the blower hot air, and the entrance of the heat exchanger via a stop valve attached emission candle to exit the first heat exchanger gas, and then hot air.

23. The refrigerator according to claim 19, characterized in that the upper points of each camera installed sensors the concentration of methane, which is a transducer-amplifier connected to the automation system and for whom the ITA, connected to the locking body is installed on the pipeline supplying gas to the heat exchanger, and exhaust ventilation system.

24. The refrigerator according to claim 19, characterized in that the heat exchangers and piping placed within the chambers made without detachable connections, and locking bodies located outside the chambers.

25. Ice machine containing a thermally insulated chamber in which is placed the kapleobrazovatelya with means for spraying water, placed in an insulated channel fan, a heat exchanger and a device for receiving ice in the lower part of the chamber, characterized in that the heat exchanger is placed in the specified insulated channel and connected to the piping inlet and outlet of the cold gas with shutoff body, said channel connected to an input with the upper part of the chamber and the exit - openings in the side walls of the camera to enter the camera cooled air.

26. The ice machine on A.25, characterized in that the kapleobrazovatelya connected to another heat exchanger to supply water cooled cold gas.

27. The ice machine on A.25, characterized in that the device for receiving ice is a drive of ice in the form placed in the lower part of the chamber vessel with sloping walls and a balancer mounted on the axle and connected with the locking device is STV with raspikirovki and overturning drive when filled with ice due to the asymmetry of the drive and return the freed ice drive to its original position due to the torque from balancer and fixation of the drive.

28. The ice machine according to item 27, wherein the inner surface of the camera of the ice machine and storage covered wagonermichigan material, for example Teflon.

29. The ice machine on item 27, characterized in that it has placed under the drive belt conveyor and logreybeam, which is equipped with a portable dispenser for feeding him pellets of ice from the drive via belt conveyor and distributor docked other belt conveyors for laying bricks of ice on the floor lochransa on each other or on the racks.

30. The ice machine on A.25, characterized in that the entrance to logrande combined with the release of ice from the chamber.

32. The ice machine on clause 29 or 30, characterized in that at the outlet of lochransa installed ledokolnyi unit for making briquettes of ice in the commodity ice of a given structure.



 

Same patents:

Cooling turbine // 2263858

FIELD: cooling and heating equipment; devices used for cooling and heating atmospheric air fed to domestic or industrial rooms.

SUBSTANCE: proposed cooling turbine includes casing, centrifugal multi-stage compressor, multi-stage peripheral-admission turbine whose blades are located between cover shields provided with circular projections over periphery and cover disks. Centrifugal compressor is provided with straightening apparatus at its inlet which has spiral blades with intake holes over periphery of rotor. Multi-stage peripheral-admission turbine is provided with outlet apparatus at its inlet which has spiral blades with outlet holes over periphery of rotor; rotor is mounted on revolving shaft. Working blades are secured on cover shields of rotor. Located in initial row of immovable disks as far as middle one are immovable straightening apparatus with spiral blades of diffuser which are located on fixed axle inside rotor. Located in subsequent row of immovable disks, after middle one, are immovable nozzle sets provided with spiral blades of contraction and secured on fixed axle inside rotor. Middle dividing disk is non-rotating and is rigidly secured on the same axle inside rotor. Rotating blades located on opposite sides of dividing disk are also secured on cover shields of rotor. Fixed axle has hole for passage of additional cooler or heater. On side of drive unit, end tenon of rotor is located between two bearings.

EFFECT: enhanced efficiency under any climatic conditions.

4 dwg

FIELD: cooling equipment, particularly refrigerators including turbo-expanders operating within wide range of cooling temperatures.

SUBSTANCE: turborefrigeration plant comprises turbo-expander, multi-compartment dynamic heat-exchanger, user of refrigeration, power source and centrifugal turbocompressor. Centrifugal turbocompressor is divided into low-pressure and high-pressure centrifugal stages. Low-pressure stage is mechanically linked with power source. High-pressure stage is mechanically connected to turboexpander. The first heat-exchanger compartment inlet communicates with outlet of user of refrigeration through channel, outlet thereof communicates with atmosphere. The second heat-exchanger compartment inlet is connected to low-pressure turbocompressor stage outlet and outlet thereof is linked with high-pressure turbocompressor stage inlet. The third heat-exchanger compartment inlet is connected to high-pressure turbocompressor stage outlet, outlet thereof is linked with turbo-expander inlet.

EFFECT: increased refrigeration performance, increased reliability of plant actuation and operation, simplified structure, increased operational economy.

2 dwg

FIELD: device adapted to reduce pressure in main gas pipeline, particularly for excessive gas energy utilization.

SUBSTANCE: used as electric machine is multipolar induction motor operating in generator mode and performing recovery of energy into supply main. Turbine, electric machine and velocity pickup are arranged in sealed chamber including bushing insulators connected with electric machine and velocity pickup from one side and with supply main through commutator from another side.

EFFECT: increased reliability and energy data.

2 dwg

FIELD: wave expander-compressors, possibly used in compression systems and plants with expansion machines.

SUBSTANCE: expander-compressor includes housing in which rotor is mounted on shaft. Rotor has energy-exchange ducts communicated at rotor rotation with branch pipes for supplying and discharging gas through gas supply nozzles and diffusers for discharging gas in respective gas distributing devices. Housing is in the form of stator having electric winding. Rotor having energy-exchange ducts is provided with short-circuit winding whose rods are arranged between outer surface of rotor and its energy-exchange ducts.

EFFECT: simplified design of wave type expander-compressor.

2 dwg

FIELD: refrigerating engineering.

SUBSTANCE: proposed method includes setting the turbine outlet temperature and continuous measurement of pressure and temperature after air bleed stages of engine compressor. Air temperature and pressure at turbine inlet, temperature and pressure at turbine outlet and rotational speed of rotor are calculated by means of system modulating unit. Then, degree of reduction of pressure in turbine, present magnitude of corrected rotational speed of rotor and optimal magnitude of corrected rotational of rotor corresponding to maximum efficiency of turbine are determined. Braking torque of rotor is changed by acting on braking unit till optimal and present magnitudes of rotational speed of rotor get equal. In case rated magnitude of air temperature at turbine outlet exceeds preset magnitude, flow rate of purging air is decreased or increased till magnitudes get equal. When these temperatures are equal, consumption of fuel is determined for each bleed stage and is analyzed for obtaining minimum consumption of fuel. Then, air temperature and pressure at turbine inlet, temperature and pressure at turbine outlet and rotational speed of rotor are determined by means of sensors. According to results thus, obtained, above-mentioned parameters are determined and processes are repeated till optimal and present magnitudes of corrected rotational speed of turbine rotor and preset and measured magnitudes of air temperature at turbine outlet get equal after which actual consumption of fuel is determined.

EFFECT: reduced consumption of fuel.

6 cl, 1 dwg

The invention relates to a device for lowering the pressure in the main gas pipelines and can be used for the disposal of surplus energy gas

The invention relates to the field of turbine construction, such as control systems seals and the oil supply device of turboexpanders

The invention relates to refrigeration and can be used in refrigeration systems, air conditioning systems and life support

The invention relates to the field of gas dehydration

The invention relates to automation of technological processes and can be used to automate the freezing of liquid products in the chemical, microbiological, food industry, and also at the enterprises of agro-industrial complex

FIELD: methods or apparatus for filling pressure vessels.

SUBSTANCE: method comprises investigating gas in a gas analyzer, supplying gas to the unit of the input cocks, removing droplet moisture and admixtures from the gas in a low-pressure gas filter, supplying the purified gas alternatively to one of the drying contours, purifying gas in the outlet gas filter, supplying gas to the inlet of the control unit, investigating gas in the gas analyzer, purifying gas in the filter-separator and in the filter which is composed of detachable filtering members, supplying purified gas to the flow meter, and supplying low-pressure purified gas to the inlet of the unit of the additional pressurization. A part of gas is reduced and supplied to the operator box at a pressure of 0.02 kg/cm2. In the additional pressurizing unit, the gas is supplied to the space of the air-operated cylinder of the first stage through the inlet valve. The gas is compressed and discharged to the unit of the accumulation of low-pressure gas where it is cooled and supplied to the pressure line. The compressed gas with a pressure of 15-20 kg/cm2 is then compressed and cooled in the air-operated cylinder of the second stage and intermediate-pressure accumulation unit up to a pressure of 60-80 kg/cm2 and temperature lower than 40°C. A part of the gas is analyzed and supplied to a consumer at a pressure of 15-20 kg/cm2. The compressed gas from the intermediate-pressure accumulation unit is compressed and cooled in the air-operated cylinder of the third stage. The compressed gas is additionally purified in the gas filters.

EFFECT: enhanced quality of gas.

4 cl, 5 dwg

Gas filling station // 2244205

FIELD: pipeline systems.

SUBSTANCE: station has compressor, pipeline for supplying gas, device for purifying gas, and flow meter.

EFFECT: expanded function possibilities.

28 cl, 4 dwg

The invention relates to gas industry

The invention relates to a power system and can be used to improve the efficiency of electricity generation for own use gas compressor stations of main gas pipelines

The invention relates to the field of power engineering and can be used in systems of transport gas for electricity generation, obtaining glatorians and liquid fractions of heavy hydrocarbons from natural gas

The invention relates to techniques for the distribution of gas, namely gas distribution stations (GDS) used for low pressure natural gas to the required level while supplying gas to energy, industrial and agricultural objects, as well as settlements on the branches from the main and field pipelines

The invention relates to techniques for gas distribution, namely, gas distribution stations, designed for low pressure natural gas to the required level while supplying gas to individual consumers, industrial and agricultural objects, as well as settlements on the branches from the main and field pipelines

The invention relates to the field of fuel and energy complex and can be used in highways, giving consumers are supplied with compressed gas, and steam

The invention relates to techniques for the distribution of natural gas to industrial enterprises and settlements

The invention relates to power engineering and can be used in the transportation of compressed natural gas for integrated production at GDS and the PKK electricity and liquefied gas

Gas filling station // 2244205

FIELD: pipeline systems.

SUBSTANCE: station has compressor, pipeline for supplying gas, device for purifying gas, and flow meter.

EFFECT: expanded function possibilities.

28 cl, 4 dwg

Up!