Heat pump installation

FIELD: heating; engines and pumps.

SUBSTANCE: heat pump installation consists of an evaporator, made in form of a closed container. The evaporator is equipped with connection pipes for input and output of water. The heat pump also consists of a compressor with an actuator, linked to the steam channels of the evaporator, as well as a condenser in form of a closed container, equipped with outlet connection pipes, and linked to the compressor. The input of the compressor is directly put into the steam channel of the evaporator, while its output is put into the cavity of the condenser. The case of the compressor is sealed to the walls of the evaporator and condenser or to the common wall for the evaporator and condenser. In the evaporator, the steam channel is separated from the rest of the volume of the evaporator by a louvered water separator, sealed to the case of the compressor or evaporator container. The actuator of the compressor used is in form of a steam turbine, placed in the cavity of the condenser and equipped with steam input and output channels. The input of the steam turbine is linked to the output compressor stage. The steam output channel of the steam turbine is put inside the channel for supplying steam to the turbine. The case of the compressor at its output is in form of a diffuser.

EFFECT: increased efficiency of the installation and increased heat conversion coefficient.

6 cl, 1 dwg

 

The invention relates to a heating engineer, and more particularly to a heat pump installations.

Known heat pump installation comprising an evaporator, a steam compressor with drive provided with the evaporator and the condenser is provided with a compressor (A.S. USSR №1478000, CL F25B 29/00, op. 1989).

In the known installation evaporator, compressor and condenser spatial placed separately from each other and are connected by pipelines. So, the conversion rate of heat such installation is low due to the large heat losses through the walls of ducts and developed surface of the walls of the evaporator, compressor and condenser, which is an indicator of the low efficiency of the installation. At the same time, is not high enough and the reliability of such installation, due to the large number of joints of pipelines with elements of the installation.

Closest to the claimed is a heat pump installation comprising placed in a closed vessel evaporator, a steam compressor with drive provided with a steam channel parosbornoj evaporator and made in the form of a closed tank capacitor provided with a compressor (A.S. USSR №2116586, CL F25B 30/02, op. 1998).

In this setting, the evaporator, compressor and condenser spatial placed separately on the other and are connected by pipelines. So, the conversion rate of heat such installation is low due to the large heat losses through the walls of ducts and developed surface of the walls of the evaporator, compressor and condenser, which is an indicator of the low efficiency of the installation. At the same time, is not high enough and the reliability of such installation, due to the large number of joints of pipelines with elements of the installation.

The invention is directed to solving the task of creating a more reliable and more efficient installation.

The technical result is to increase plant reliability and to increase the conversion gain of heat.

This technical result is achieved by the heat pump installation, containing made in the form of a closed tank, the evaporator, equipped with nozzles for supplying and discharging water, a compressor with a drive provided with a steam channel of the evaporator, and made in the form of a closed container and provided with a pipe outlet of the condenser is in communication with the compressor, the compressor inlet is placed directly in the steam channel of the evaporator, its output is in the cavity of the condenser and the compressor casing is hermetically installed in the tank walls of the evaporator and condenser, or in a tank of the evaporator and condenser wall.

Specified financial p the tat is achieved by the fact that in the evaporator steam channel separated from the remaining space of the evaporator circular louvered separator, thickened relative to the housing of the compressor and the capacity of the evaporator.

This result is achieved by the fact that the drive of the compressor used steam turbine is placed in the cavity of the condenser and provided with a channel inlet and outlet pair.

This result is achieved by the fact that the entrance of the steam turbine is turned to the output stage of the compressor.

This result is achieved by the fact that the channel steam extraction from the steam turbine is placed inside the channel steam supply to the turbine.

This result is achieved by the fact that the compressor casing at its output is made in the form of a cone.

The drawing shows a variant of the construction of the complete heat pump installation.

Heat pump installation (shown in working position) contains the evaporator 1, the condenser 2 and the compressor 3 driven in a steam turbine 4. The evaporator 1 is made in the form of a cylindrical closed vessel formed by the upper wall 5, side wall 6 and bottom wall 7. The evaporator 1 is provided with a pipe 8 for supplying water is connected to the nozzle 9 of the water placed in the cavity of the evaporator 1, and the pipe 10 drainage water from the evaporator. The capacitor 2 is also the implementation is in the form of a closed cylindrical container, formed by the bottom wall 11, side wall 12 and top wall 7, which is at the same time (as mentioned above) the bottom wall of the evaporator 1. Thus, the wall 7 is common to the capacity of the evaporator 1 and the capacitor 2. The evaporator 1 and the condenser 2 are arranged in tiers, one above the other. However, longline location of the evaporator 1 and the condenser 2 is not only possible for the described variants of performance of heat pump installation. The condenser 2 is provided with a branch pipe 13 condensate. In the common wall 7 is hermetically installed (in the particular case, sealed) case 14 of the compressor 3, made for example in the form of an axial vane machine. The housing 14 of the compressor is installed in such a way that it permeates common for evaporator and condenser wall 7, speaking into the cavity of the evaporator 1 and the cavity of the condenser 2. In the annular space between the casing 14 of the compressor 3 and the side wall 6 of the evaporator, the cooling 9, posted by rolling the separator 15, its input (i.e. the input section 16 is directed to the nozzle 9. The space of the evaporator 1, located at the output (i.e. the ring output section) 17 of the separator 15 is a steam channel 18 of the evaporator 1. In the steam channel 18 is located (hosted) input (i.e. the plane of the input section 19 of compr the quarrel 3, the output (i.e. the output plane of the cross section) 20 is (located) in the cavity of the capacitor 2. Rolling the separator 15 has a ring shape, is sealed relative to the housing 14 (outer surface) of the compressor 3, and relative to the side wall 6 of the evaporator 1, and separates the steam channel 18 of the evaporator 1 from the remaining space of the evaporator 1. In the cavity of the capacitor 2 is placed a heat exchanger 21, provided with a piping for supplying and discharging a coolant, and steam turbine 4, provided with a steam supply channel 22 and channel 23 steaming. When the channel 23 of the steam extraction from the steam turbine 4 is placed within the channel 22 of the steam supply to it. Optimal is a coaxial arrangement of the channels 22 and 23. Herself steam turbine 4 are placed so that its input 24 is turned to the output stage 25 of the compressor 3. The housing 14 of the compressor 3 at its output side is made in the form of the diffuser 26.

Another possible embodiment of a heat pump installation (does not require a separate graphical explanation), in which the capacity of the evaporator 1 and the condenser 2 are not walls, common to both tanks. With this embodiment, the housing 14 of the compressor is hermetically installed in the wall of the evaporator 1 (penetrating her), and in the wall of the condenser 2 (also penetrating her). When longline location of tanks (evaporator above what ondansetron) the said walls will be, accordingly, the bottom wall of the evaporator and the upper wall of the condenser. These walls can be external (the capacity of the evaporator can be supplied directly to the capacitor, and in this case, the convective heat loss will be minimal), and may be located at some distance from each other (between the vessels of the evaporator 1 and the condenser may be a gap).

Cylindrical and of the same (or similar) vessel form evaporator 1 and the condenser 2 is not the only possible one. In a more General capacity of the evaporator 1 and the condenser 2 can be arbitrary and different form.

Necessary to achieve the claimed result in the first described embodiment of heat pump installation (total for evaporator and condenser wall 7) are sealed installation in said common wall of the compressor housing 3, as well as direct placement of the inlet 19 of the compressor 3 in the steam channel of the evaporator, and the outlet 20 of the compressor 3 in the cavity of the capacitor 2.

For the second of these options heat pump installation required are sealed installation of the compressor housing 3 in the wall of the evaporator 1 and the wall of the condenser 2, and the immediate placement of the inlet 19 of the compressor 3 in the steam channel of the evaporator, and output campresort 3 in the cavity of the capacitor 2. In that case, if the capacity of the evaporator and condenser are mounted with a gap from each other, it is advisable to take additional measures to reduce heat leaks from a gap (at least, convective), for example, placed in the gap insulation.

In General, both at the same and different in shape and transverse dimensions of the evaporator 1 and the condenser 2, the technologically most convenient to perform as a single tank with a sealed interior partition, which will be the overall wall 7 separates the specified total capacity at the evaporator and condenser.

The term "compressor housing" in the application refers to not only the shell, the inner surface of which forms the setting of the compressor, but in this concept the applicant also includes any other item that provides a sealed case is installed in a tank of the evaporator and condenser wall (for the first option installation) or sealed in the wall of the evaporator and in the wall of the capacitor (for the second option installation). As such elements can be used any known in the art, such as elements of flange connections.

Heat pump system operates as follows.

Warm water from nizkopotyentsial the second heat source (not shown) through pipe 8 for supplying water directly or through a nozzle 9 is supplied into the inner space of the evaporator 1, in which, thanks to the work of the compressor 3, creates a vacuum pressure corresponding to the boiling point of water at a given temperature. For example, in the temperature range 35...60°With the pressure maintained within the range of 0.04...0.1 kg/cm2. Vacuum water boils and the steam together with drops of water fed to the input 16 of the louver separator 15, on which is deposited the water in the form of condensed moisture. Drops of water fall down and accumulate in the bottom of the tank of the evaporator 1 above the lower wall 7. The pipe 10 excess chilled water is drained from the evaporator 1. Output 17 louver separator 15 dry steam moves through the steam channel 18 of the evaporator and goes directly to the input 19 of the compressor 3. The compressor 3 is driven steam turbine 4, the supply of steam to the channel 22, and the outlet channel 23. When vapor compressed in the compressor 3 its pressure and temperature are increased. Compressed hot steam through the annular channel formed by an outer wall of the steam supply channel 22 and the wall of the diffuser 26, flows into the internal cavity of the capacitor 2. There is condensation of hot steam on the surface of the heat exchanger 21, is placed in the cavity of the capacitor 2. The heat from the hot steam is passed pumped through the heat exchanger 21 of the cooling medium that I have is cooled in the heat supply system (not shown). The outlet 20 of the compressor 3 must always be above the level of the condensate accumulating in the lower part of the capacitor 2. Excess condensate is given to the consumer (not shown) on the nozzle 13 of the row.

The design heat pump installation, the piping connecting the compressor 3 to the evaporator 1 and the condenser 2 is less than in the known constructions the number of joints, which when they lose their integrity possible leakage of working medium, inevitably accompanied by heat. This simultaneously achieves higher reliability and higher thermal efficiency (higher conversion rate of heat). Along with this, thermal efficiency is increased thanks to the reduction of the areas of heat transfer elements of the installation environment. This is due to the absence of heat losses from the surfaces of the aforementioned piping connecting the compressor 3 to the evaporator 1 and the condenser 2, the absence of heat losses from the surface of the compressor body 3 (in the first embodiment, the heat pump installation), as well as the fact that the wall 7, which is common to the evaporator 1 and the condenser 2, almost no thermal contact with the environment (face the heat loss can be neglected). The second option is e complete heat pump installation, also there is a significant reduction of heat losses from the surface of the chassis 14 and the less they, the majority of the housing 14 of the compressor 3 is placed in the cavity of the evaporator 1 and the condenser 2 and is not in contact (in the sense of convective heat transfer with the environment.

The use of a heat engine - a steam turbine 4 as a drive of the compressor 3, and the spatial distribution of the steam turbine 3 in the cavity capacitor additionally provide increased thermal efficiency of the installation by eliminating heat loss of the driving steam (i.e. steam used to drive a steam turbine 4).

The orientation of the inlet of the steam turbine in the direction of output stage 25 of the compressor 3 additionally provides unloading of the compressor rotor 3 against axial forces.

The placement of the channel 23 of the steam extraction from the steam turbine within the channel 22 of the steam supply to the steam turbine 4 in addition minimizes leakage of the drive steam into the environment.

The embodiment of the casing 14 of the compressor 3 at its output in the form of the diffuser 26 provides a reduction of hydraulic losses in the compressor 3, which also increases the conversion of heat into the installation.

1. Heat pump installation comprising executed in the form of a closed tank, the evaporator, equipped with nozzles for supplying and discharging water, a compressor with a drive provided with a steam channel of the evaporator, and made in the form of a closed container and with ebunny the pipe outlet of the condenser, communicated with the compressor, wherein the compressor inlet is placed directly in the steam channel of the evaporator, its output is in the cavity of the condenser and the compressor casing is hermetically installed in the tank walls of the evaporator and condenser, or in a tank of the evaporator and condenser wall.

2. Heat pump installation according to claim 1, characterized in that the evaporator steam channel separated from the remaining space of the evaporator circular louvered separator, thickened relative to the housing of the compressor and the capacity of the evaporator.

3. Heat pump installation according to claim 1, characterized in that the drive of the compressor used steam turbine is placed in the cavity of the condenser and provided with a channel inlet and outlet pair.

4. Heat pump installation according to claim 2, characterized in that the inlet of the steam turbine is turned to the output stage of the compressor.

5. Heat pump installation according to claim 2 or 3, characterized in that the channel steam extraction from the steam turbine is placed inside the channel steam supply to the turbine.

6. Heat pump installation according to claim 1, characterized in that the housing of the compressor at the outlet is made in the form of a cone.



 

Same patents:

Gas turbine device // 2304725

FIELD: gas turbine engineering.

SUBSTANCE: device comprises air compressor provided with the air cooler whose refrigerator is connected to the circulation circuit of coolant that is cooled by the absorption cooling machine connected with the combustion chambers and gas turbine provided with gas duct having the built-in heated member. The heated member is made of a heat exchanger provided with the intermediate heat-transfer agent. The heated section of the heat exchanger is set into the gas duct in the flow of exhaust gas in the zone where the temperature is lower than 150°C with the boiling temperature of the intermediate heat-transfer agent being no less than 130°C. The cooled section of the heat exchanger is mounted inside the boiler. The coolant is made of salt solutions, or Freons.

EFFECT: enhanced efficiency.

FIELD: transport engineering.

SUBSTANCE: invention relates to low-capacity turbocompressors-gas-expansion machines for transfer of hot contaminated gas-air mixture and for cooling air in vehicle air conditioning and air cooling system. proposed turbocompressor-gas-expansion machine has housing accommodating shaft installed inside housing on antifriction bearings with fitted on wheels of compressor and turbine-gas-expansion machine secured on ends of shaft. Bearings are grease packed. Bearing unit from side of compressor is installed with clearance relative to housing. clearance is divided by partition made of heat-insulating material into two spaces. Space from side of bearing unit communicates with atmosphere and with outlet of turbine-gas-expansion machine for cooling bearing by part of cooled air flow. Space from side of compressor is sealed to play part of heat shield.

EFFECT: simplified design, reduced overall dimensions of turbocompressor-gas-expansion machine, provision of normal temperature conditions for operation of bearing.

3 cl, 1 dwg

FIELD: power engineering, possible use in devices for using cold of natural gas at outlet of cryogenic gas expansion machine for ecologically safe cooling of air in chambers of refrigerator.

SUBSTANCE: method for utilization of cold, generated during expansion of natural gas in at least one cryogenic gas expansion machine with diversion of mechanical energy includes letting cold gas prior to feeding to consumer through at least one heat exchanger with cooling in this heat exchanger of intermediate fire and explosion safe liquid coolant. Heat exchanger is made with direct contact of substances. Cooling of air in cooling chamber is performed by letting cold liquid coolant through heat exchanger of refrigerator, which is returned to heat exchanger for cooling by natural gas. Draining of liquid coolant is compensated by natural gas by means of feeding liquid coolant into its circulation contour when level of liquid coolant decreases in heat exchanger. System for utilization of cold, generated during expansion of natural gas with diversion of mechanical energy contains at least one cryogenic gas expansion machine with device for receipt of mechanical energy, connected to source of high pressure natural gas, heat exchanger for cooling of liquid coolant, at least one chamber of refrigerator with heat exchanger and accumulating vessel for liquid coolant with device for controlling level of liquid coolant, connected to pipeline, connecting outlet for liquid coolant of heat exchanger for cooling of liquid coolant to at least one heat exchanger of refrigerator chamber. Vessel is made with possible connection to liquid coolant storage and through valve for discharging gas - to atmosphere when a signal is received by valve from device for controlling level of liquid coolant.

EFFECT: improved efficiency, increased ecological safety and explosion safety of cold utilization.

2 cl, 3 dwg

FIELD: refrigeration equipment, particularly used to utilize secondary energy and natural source energy having low potential, namely for combined heat and cold production.

SUBSTANCE: refrigeration plant comprises body, turbine, compressor, supply pump, evaporative and condensation chambers and capillary system for working liquid throttling. The body is separated into power and cooling sections by solid partition. Evaporative, working and condensation chambers are created in the power section. Inside surfaces of side evaporative chamber walls and partition are covered with wick. Inner surface of end wall is provided with grooves and covered with thin porous material layer. Shaft extends through body walls, power and cooling sections, solid partition and wick layers. Feed pump rotor is put on shaft end so that the pump is communicated with working liquid reservoir. Arranged in cooling sections are low-temperature evaporative chamber and compressive condensation chamber communicated by compressor to which vapor flow is fed. Compressor rotor is put on shaft.

EFFECT: increased performance.

1 dwg

FIELD: power engineering; power generating installations.

SUBSTANCE: the invention is pertaining to the field of power engineering, in particular, to the power generating installations utilizing the energy of the overpressure of the rock gas with realization of the gas-turbine-expansion effect. The gas-turbine-expansion installation for utilization of the compressed rock gas energy contains in series mounted on the high-pressure rock gas mains: the electric heater for preheating of the gas; the turbo-expander kinematically linked with the electric power generator; the power storage battery with a capability of its recharge from the electric generator at the turbo-expander operation in the recharge mode and at connection to the heater in the initial moment of the installation operation with the subsequent switching-off from the heater at the turbo-expander reaching its operational mode. The electrical heater is the resistive heater and connected to the electric power generator through the control unit, which is electrically connected to the temperature sensing devices mounted on the inlet and the outlet of the turbo-expander. Utilization of the invention ensures simplification of the design chart of the power gas-turbine-expansion installation and the capability to regulate the preset temperatures of the gas at the inlet and the outlet of the turbo-expander.

EFFECT: the invention ensures simplification of the design chart of the power gas-turbine-expansion installation and the capability to regulate the preset temperatures of the gas at the inlet and the outlet of the turbo-expander.

2 cl, 2 dwg

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

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: objects of personal use, refrigeration engineering.

SUBSTANCE: household compression refrigerator consists of housing, compressor, condenser, filter - dehydrator, vaporiser, lamp bar. Compressor, with condenser and filter- dehydrator are separated into one block, from the fridge housing and placed away from the placement, where there the refrigerator is used. The outrigger block, heat-insulated by pipes, is connected to the vaporiser, placed in the housing.

EFFECT: improving the power and operational potential of a refrigerator.

1 cl, 2 dwg

FIELD: cooling equipment, particularly to recover secondary heat energy resources and low-potential heat power from natural source.

SUBSTANCE: cooling machine comprises power unit and cooling unit. Power unit includes body receiving serially arranged evaporative chamber, working chamber and condensation chamber connected with each other. Working chamber is filled with wick. Condensation chamber is also provided with wick and is in contact with cold medium. Cooling unit has body receiving low-temperature evaporative chamber and compression condensation chamber. The receiving low-temperature evaporative chamber and compensation condensation chamber are separated one from another with case in steam space and are in liquid communication with each other through wick capillaries and in gas communication with each other through compressor. Compressor has rotor put on shaft. Pressure pipe is arranged in compression condensation chamber. Suction pipe is installed in low-temperature evaporation chamber. Evaporation chamber includes evaporation cases. Condensation chamber has condensation cases. End wall of low-temperature evaporation chamber is communicated with evaporation cases through orifices. Inner evaporation case surfaces are covered with porous strips, which define grooves. Wick strips are connected with wick core through lifting wicks. Lifting wick surfaces are cased from low-temperature evaporation chamber side to create throttling zone.

EFFECT: increased power and cooling efficiency.

1 cl, 6 dwg

FIELD: cooling and heating equipment, particularly for simultaneous environmental air heating and cooling in industrial objects.

SUBSTANCE: device comprises turbo-expander and multistage compressor connected to turbo-expanded through high-pressure pipeline. High-pressure pipeline includes water heat-exchanger and the first dehumidifier, as well as two recuperative heat-exchangers and the second dehumidifier. Low-pressure pipeline communicates turbo-expander with object to be cooled or heated. Air inlet line has serially arranged sucking means and filter. Air inlet line is linked to multistage compressor. Single-stage centrifugal pump and turbo-expander are connected to common shaft. Additional dehumidifier is installed downstream of the first recuperative heat-exchanger. Additional heat-exchanger is arranged in low-pressure line so that one cavity thereof is connected to the second recuperative heat-exchanger inlet and another one is communicated with outlet thereof. Low-pressure line section located upstream of object to be cooled and/or heated is made as at least one pipeline provided with electric production air heater. Additional air supply loop branches away from air inlet line upstream of multistage compressor and is communicated with single-stage centrifugal pump inlet. Excessive heat removal loop is connected to single-stage centrifugal pump outlet.

EFFECT: increased reliability and thermodynamic efficiency, as well as improved operational conditions.

4 cl, 2 dwg

FIELD: mechanical engineering.

SUBSTANCE: invention relates to multistage cooling compression plants. Proposed plant has first compressor with first and second stages. First stage compresses first gas, and second stage compresses combined fourth gas and intermediate compressed gas from first stage of first compressor. Second compressor has first stage and second stages. First stage compresses second gas and second stage compresses combined third gas and intermediate compressed gas from first stage of second compressor. Plant has pipeline arrangement to combine discharge from second stage of first compressor and discharge from second stage second compressor to provide compressed gas. Second gas is at pressure higher than first gas, third is at pressure higher than second gas, and fourth gas is at pressure higher than third gas.

EFFECT: provision of alternative method of designing of refrigerating compressor for large capacity plants for liquefying and treatment of gas.

12 cl, 4 dwg

FIELD: compressor building.

SUBSTANCE: invention can be used in automobile gas filling compressor stations with adsorption drying of gas. According to invention, delivered to suction in compression stage is heated by contactless heat exchange with gas of the same stage and then is compressed in the stage getting higher temperature gas. Plant has compressor with compression stage, line to deliver gas into said stage, suction and delivery lines of said stage, gas drying and adsorbent regeneration unit including absorbers delivery line of compression stage is connected with corresponding absorber by regeneration line. Device for contactless heat exchange is connected by one side at input with stage delivery line, and at output, with stage suction line, and by other side is connected by input with stage delivery line and at output, with adsorbent regeneration line by means of additional lines. First additional line is provided with shutoff and control devices before contactless heat exchange device, and delivery line is provided with shutoff-and-control devices before input of regeneration line.

EFFECT: provision of process at which delivery temperature rise is provided to required value in any stage, any season of year in any compressors.

3 cl, 3 dwg

Cooling plant // 2313047

FIELD: conditioning system, particularly ones adapted for vehicle conditioning and provided with centrifugal compressors.

SUBSTANCE: cooling plant comprises closed loop with sealed centrifugal pump with built-in electric motor, as well as condenser with axial fan, thermostatic expansion valve and evaporator. Thermal phial of thermostatic expansion valve is installed at evaporator outlet. Bypass line with throttle is connected in parallel to thermostatic expansion valve. Object to be conditioned is communicated to evaporator through air loop provided with centrifugal fan. Throttle has locking valve and bellows-type pneumatic drive having control cavity communicated with thermal phial of thermostatic expansion valve.

EFFECT: simplified structure and increased operational reliability.

1 dwg

FIELD: cooling systems of heat-generating radio-electronic equipment (REE), applicable in radiolocation, radio navigation, instrument engineering.

SUBSTANCE: the support systems of REE thermal conditions has a pumping plant, heat exchanger, cooling fan of the heat exchanger, circulating fan, refrigerating machine, fluid cooling system pipe-lines and air conduits. The pumping plant, refrigerating machine condenser, cooled high-power REE and the heat exchanger are series-connected by pipe-lines to a closed fluid cooling system, the heat exchanger is connected to its cooling fan by air conduits. The circulating fan, refrigerating machine evaporator and the cooled low-power REE are series-connected by air conduit to a closed air cooling system.

EFFECT: enhanced efficiency of cooling of different type devices on dissipated power, and, namely, its enhanced capacity and reliability, reduced overall dimensions characteristics and consumption of electric power.

3 dwg

FIELD: heat power engineering.

SUBSTANCE: device comprises pump, circulation circuit provided with two compressors in the top stage. Each of the compressors is connected with the condenser, throttle valve, and evaporator connected in series. The device is additionally provided with separating tank connected to the circulation circuit between two compressors in the top stage that separates the circulation circuit into two circuit, two steam-jet ejectors in the bottom stage interposed between the condenser, and compressor. The separating tank is additionally connected with the circulation circuit in the section between the nozzles of the steam-jet ejectors. The device has two regenerative heat exchangers each of which is interposed between the condenser and throttle valve. The evaporator is connected with the pump, to the top section of the separating tank, to the inlet of each steam-jet ejector, and to the outlet of each throttle valve.

EFFECT: enhanced efficiency.

1 cl, 2 dwg

FIELD: heat power engineering.

SUBSTANCE: device comprises pump, circulation circuit provided with two compressors in the top stage. Each of the compressors is connected with the condenser, throttle valve, and evaporator connected in series. The device is additionally provided with separating tank connected to the circulation circuit between two compressors in the top stage that separates the circulation circuit into two circuit, two steam-jet ejectors in the bottom stage interposed between the condenser, and compressor. The separating tank is additionally connected with the circulation circuit in the section between the nozzles of the steam-jet ejectors. The device has two regenerative heat exchangers each of which is interposed between the condenser and throttle valve. The evaporator is connected with the pump, to the top section of the separating tank, to the inlet of each steam-jet ejector, and to the outlet of each throttle valve.

EFFECT: enhanced efficiency.

1 cl, 2 dwg

FIELD: mechanical engineering, particularly devices to prevent wet vapor ingress in cylinders of compressors used in gas-processing plants for pressure increase in natural gas pipelines.

SUBSTANCE: device comprises horizontal sucking pipe and emergency shutdown sensor. Low-frequency ultrasound generator is arranged inside horizontal sucking pipe. Ultra-violet radiation sensor is installed in lower part of horizontal sucking pipe and is spaced 0.1-1 m from low-frequency ultrasound generator.

EFFECT: increased operational reliability.

1 dwg

Gas compressor // 2249727

FIELD: refrigeration industry; cooling installations components.

SUBSTANCE: the invention is dealt with the field of cooling installations equipment and may be used for production of air conditioning systems. The gas compressor contains a body and located in it two driving and two driven pistons. The body is made out of two hemispheres and contains two gaskets made out of an antifriction heat-insulating elastic-flexible material. Each piston is made in the form of ball-type sectors, on a spherical surface of each of which there is an elastic member. An aperture angle of lateral surfaces of the sectors of the driving pistons makes 86° - 90°, and an aperture angle of the lateral surfaces of the sectors of the driven pistons makes 42°-83°. A groove is made radial with trapezoidal cross-section and oriented perpendicularly to axes of the shaft of the compressor. The bases of the cross-section are in ratio of 1:2 - 1:5, and a lateral side is equal to the length of the smaller base. The elastic member is located on the bottom of each groove and its cross-section is an ellipse. The bigger diameter of the ellipse by 3-7 % is more than the length of the centerline of the trapezoidal cross-section of such a groove. On the elastic member there is the second elastic member of a rectangular cross section, the width of which by 2-5 % exceeds the length of the smaller base of the groove, and its length ensures formation of a ledge on the ball-type surface of the piston, the height of which makes 1-3 % of the smaller base of the groove. The invention allows to increase efficiency of the gas compressor.

EFFECT: the invention ensures increased efficiency of the gas compressor.

6 dwg

Up!