Compressor station for gas conditioning before its delivery to gas-main pipeline
SUBSTANCE: at compressor station for gas conditioning before its delivery to gas-main pipeline which station contains gas-compressor plants including centrifugal boosters driven by gas-turbine engines, heat exchangers for gas cooling, pipelines and locking elements, in each of gas-compressor plants on one shaft and in one housing with centrifugal booster driven by gas-turbine engine, gas turboexpander, at that, outlet of gas cooling heat exchanger which inlet is connected with booster output is connected with inlet of gas turboexpander outlet of which is connected by pipeline with gas-main pipeline, at that, gas-compressor plants with gas turboexpander are collected in pairs in block-containers with possibility for each of gas-compressor plants of one block-container to work in parallel or in series.
EFFECT: gas-main pipelines reliability enhancement by means of supplying to them compressed air of reduced temperature.
The present invention relates to the field of gas transport, in particular to a compressor stations, gas treatment, including the resulting processing of associated petroleum gas at gas processing plants, to feed it into the gas lines.
Known compressor unit compressor stations of main gas pipeline containing a stationary gas turbine drive centrifugal supercharger, air-cleaning device, ducts and flues, in which gas turbine drive is implemented as a modular unit with a supply of air for cooling gas turbine drive and maintain high pressure (see, for example, U.S. Pat. Of the Russian Federation No. 2200255, 7F04D 25/02; 2002104572/06, 26.02.2002).
Known block-gas compressor station with Autonomous power supply system power containing uses released in the process of expanding gas useful energy expander to drive the generator (see, for example, U.S. Pat. EN 2270395 C2, F17D 1/04, 2006.01).
Known compressor station gas to increase the pressure of natural gas during its transportation containing gas compressor units, connected at the input of the process piping system training process gas and outlet installation cooling technology is whom gas, made in the form of an air cooler, and through valves and inlet and outlet piping from the main gas line (see, for example, U.S. Pat. 2277670, Russia, IPC F17D 1/07, No. 2004108954/06, 26.03.2004, publ. 10.06.06).
Known device for cooling a natural gas containing located on one shaft of the compressor and the expander and heat exchanger cooling gas input ("gas") which is connected to the output of the compressor, and the output to the input of the expander, whose output is connected by a pipeline with a trunk pipeline (see, for example, SU 726391 AND, F25B 11/00, 05.04.1980, 2 C.) prototype.
The present invention solves the problem of increasing the reliability of pipelines for pumping gas (pipelines) by filing them in compressed (compressed) gas low temperature using modular compressor stations with mounted gas compressor units with hattenbergstrasse.
To achieve the technical result at the compressor station containing gas compressor units, including centrifugal compressors driven by gas turbine engines, heat exchangers cooling gas piping and shut-off bodies, according to the invention in each of the pumping units on the same shaft and in one case with centrifugal magnetite who eat driven gas turbine engine, attorneysgeneral, and the output heat exchanger cooling gas whose input is connected to the output of the compressor is connected to the input of attorneyseries, the output of which is connected by a pipeline with a trunk gas pipeline, with gas-pumping units with hattenbergstrasse assembled in pairs in the block-containers with each of the pumping units of one block-container simultaneously or in sequence.
The hallmark of the invention is that in each of the gas compressor units compressor station on the same shaft and in one case with a centrifugal compressor driven by gas turbine engine, attorneysgeneral, and the output heat exchanger cooling gas whose input is connected to the output of the compressor is connected to the input of attorneyseries, the output of which is connected by a pipeline with a trunk gas pipeline, with gas-pumping units with hattenbergstrasse assembled in pairs in the block-containers with each of the pumping units of one block-container simultaneously or in sequence.
The operating experience of various pipelines shows the need to maintain minimum low (and in which moznosti constant) plus the temperature of the gas transported. For Northern permafrost areas (and there are many pipelines) is optimal maintenance even negative temperature gas transported, although because of the threat of loss of the crystalline (solid) carbon is undesirable (additional pollution of the pipeline). The cooling gas after compression in the compressor) in the traditional way (in heat exchangers air cooled gas, currently installed, as a rule, all gas turbine compressor stations of main gas pipelines) are not significantly reduce the temperature of the gas transported. If the ambient temperature is ˜+25° ... +35°in summer, to cool the gas after its compression in the compressor in an air cooler is really only possible to a temperature of ˜+35° ... +45°s, respectively. Transport by pipeline gas with the temperature leads to decrease in the reliability and reduce the operating time of the gas (especially in the Northern regions, taking into account the presence of permafrost). So, for example, for submission to the main gas pipeline of low (˜40 kgf/cm2) or high (˜76 kgf/cm2pressure gas from the gas compressor plants (GPP) (usually it dry cleaned gas pressure of 25...40 kgf/cm2and temperature ˜+50B0; C) it is necessary to komprimierung and cooling use (booster) compressor station (CS) in order to bring the gas obtained at the output of the GEA to the values required for injection into the main pipeline.
The proposed compressor station gas to supply it in the gas main can be illustrated with the help of the drawings figure 1, figure 2 and figure 3, which circuit presents compressor unit with gasturbeschlage, compressor line (mini-COP), consisting of two placed in the container such gas compressor units and compressor station consisting of compressor lines.
In gas pumping units (GPU) with gasturbeschlage (compressor unit with "direct cooling" gas) (figure 1) in the same housing 1 and on the same shaft with the centrifugal supercharger (CN) 2, driven by gas turbine engine (GTE) 3 made attorneysgeneral (GTR) 4. The output of the compressor 2 is connected by a pipe 5 to the input of heat (e.g., air) cooling apparatus (preliminary) gas (AVO) 6, and the output AVO pipe 7 is connected to the input GTR, the output of which the pipe 8 is connected to the discharge plume of the compressor station (CS). Entrance CN is connected by a pipe 9 with suction train KS. In the pipeline about the binding HPA performed locking bodies 10, 11, 12, 13, 14, 15, 16.
Figure 2 presents the compressor line ("mini"-KS), where gas pumping units (GPU) with hattenbergstrasse 17 and 18 are placed in the container (module) 19 (air cooling apparatus gas (preliminary) 20 and 21 placed outside of the block container). In the connecting piping HPA 17 and 18 are installed AVO 20 and 21 and the locking bodies 22, 23, 24, 25, 26, 27, 28, 29. Conduit 30 is the input centrifugal blowers in HPA 17 and 18 are connected with suction train KS. The outputs of azotobacteria HPA 17 and 18 by the conduit 31 is connected to the discharge plume of the COP.
Figure 3 circuit presents compressor station, which is equipped with compressor lines CL 32, 33, 34 and 35, tied suction and discharge piping with shutoff bodies (position not specified).
Compressor unit with gasturbeschlage works as follows (see figure 1). The gas released from the GEA, the pipe 9 is supplied to the suction side (inlet) of the centrifugal blower 2 HPA. In ZN given GTZ, gas komprimerede (compressed) to a pressure considerably higher than the value required for submission to the main pipeline. After ZN pipeline 5 gas enters AVO, where it is cooled (preliminary), then line 7 is fed to the input installed in the housing 1 GTR, which expands to the Alenia, required for injection into the pipeline, with useful work at the same time, given the shaft of the compressor 2, and lowering the temperature of the gas. From GTR on line 8 gas required parameters enters the main gas pipeline of low pressure (for example, ˜40 kgf/cm2). Using the shut-off bodies 10, 11, 12, 13, 14, 15, 16, installed in piping HPA, provided by the connecting-disconnecting" HPA to the gas and the operation of the HPA.
If necessary, the supply of gas to the main gas pipeline high pressure (for example, ˜76 kgf/cm2) use compressor line CL, consisting of two HPA 17 and 18 placed in the container 19 (see figure 2). The gas coming from the intake manifold of the 30 through the open stop valve (faucet) 22 on the inlet (suction) HPA 17, then compressing it (with cooling in AVO) through the open stop valve 24 to the input of the HPA 18. The locking bodies 23, 25, 26 and 28 must be closed. After compression in HPA 18 (with cooling in AVO) gas through the open bodies 27 and 29 (check valve) on the discharge conduit 31 enters the main gas pipeline of high pressure. It is possible to komprimierung the gas is initially in HPA 18, and then in HPA 17. In this case, must be open locking bodies 23, 25, 26, 28, and closed 22, 24, 27, 29. It is also possible HPA 17 and 18 in parallel, under the Chi in the pipeline "low" pressure more gas (˜ dual performance HPA). When this locking bodies (cranes) 24 and 25 are closed, and 22, 23, 26, 27, 28, 29 open. The locking bodies (check valves) on 28 and 29 prevent the reverse flow of gas.
If necessary, feed into the main pipeline of large volumes of gas KS perform several compressor lines CL (mini-KS), for example four, 32, 33, 34, 35 (3), of which one (any) - backup. Shut-off bodies on suction and discharge piping "compressor" lines, compressor stations allow you to use different ways to connect CL 32, 33, 34, 35 to the main pipelines, low or high pressure.
The proposed compressor station (staffed HPA with hattenbergstrasse) can be used when pumping through main gas pipelines "conventional" natural gas.
Compressor station gas to supply it into the main pipeline containing gas compressor units, including centrifugal compressors driven by gas turbine engines, heat exchangers cooling gas piping and shut-off bodies, characterized in that each of the pumping units on the same shaft and in one case with a centrifugal compressor driven by gas turbine engine, attorneysgeneral, and the output t is bloomindale apparatus cooling gas, whose input is connected to the output of the compressor is connected to the input of attorneyseries, the output of which is connected by a pipeline with a trunk gas pipeline, with gas-pumping units with gasturbeschlage assembled in pairs in the block-containers with each of the pumping units of one block-container simultaneously or in sequence.
SUBSTANCE: when natural gas is prepared for burning in boiler, temperature of natural gas at the outlet of expansion engine is provided by control of gas expansion extent so that it is below dew point temperature of heavy carbohydrate fractions - gas condensate. Gas is sent through separator for separation of gas condensate. At least part of natural gas without heavy fractions is sent through heat exchanger for cooling of natural gas burning products in boiler down to the temperature below dew point of water vapours, which are produced in process of natural gas burning, with preparation of water condensate. System for preparation of natural gas for supply to consumer contains at least one expansion engine and electric generator connected to its shaft, at least one gas separator, which is connected with its inlet to at least one outlet of gas from expansion engine, and also at least one gas heat exchanger, which is connected with its inlet to the outlet of at least one gas separator. Outlet of expansion engine is connected to the inlet of reservoir, volume of which is selected based on conditions of gas condensate discharge, and reservoir gas outlet is connected with inlet of gas separator. Outlets of reservoir and gas separator by liquid are connected with reservoir for collection of gas condensate, which is installed at the lower level, and outlet of separator by gas is connected to gas heat exchanger for cooling of burning products and with inlet of chill removal unit, which is connected to refrigerator, and outlets of gas heat exchanger and unit of chill removal by gas are connected to units of boiler gas collection units.
EFFECT: increase of chill use efficiency.
10 cl, 2 dwg
FIELD: heating, ventilation.
SUBSTANCE: invention refers to the device and method to be used with air conditioning cycle. A turbine for power generation includes a rotor, a chamber and at least one nozzle for supply of a fluid medium to activate the rotor. Flow of the fluid medium out of the nozzle output is periodically interrupted with at least one device of the flow brake to increase fluid medium pressure inside the nozzle. In a thermo dynamic cycle two such turbines can be used; at that the first turbine is located after a compressor and before a heat exchanger, and the second turbine is located after an evaporator and before the compressor. The invention facilitates upgrading of a total efficiency owing to recuperation of a portion of energy.
EFFECT: upgraded efficiency of an air conditioning device.
31 cl, 14 dwg
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
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.
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
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.
FIELD: engines and pumps.
SUBSTANCE: invention relates to gas processing equipment and can be used in preparation of natural and associated oil gas for transportation. In compliance with this invention, proportioning pump 13 is cut in and gates 12, 24, 29 are opened at a time to allow water flowing from the outlet of the said proportioning pump and through nozzle 11 to get dispersed to form a water screening along the gas flow. Gas is forced from the outlet of mist extractor 44 through the aforesaid ware screening into mixer 10. Now, thus formed water-gas mixture is fed to horizontal hydrator 2 representing cylindrical casing 3 accommodating helical adaptor 6. The mix of gas hydrates, gas and fluid comes from the outlet of aforesaid hydrator 2 into vertical separator 16 representing cylindrical casing housing cyclone 18 and mist extractor 20 with heat exchanger 39. Gas outlet branch pipe 40 of separator 16 communicates via pressure control valve 41 with gas collector unit 46.
EFFECT: higher quality of gas preparation for transportation in gas mains.
4 cl, 1 dwg
FIELD: engines and pumps.
SUBSTANCE: in compliance with the proposed method, gas pressure in the compressor is increased to the level exceeding that in the operated gas main section, then the compressed gas pressure is reduced to that in the said operated gas main section. The compressor plant to pump out gas from the shut-off section into the operated gas main section incorporates the compressor with its inlet connected to the shut-off section outlet and a gas pressure reducing device with its inlet connected to the compressor outlet and its outlet connected to the operated gas main section outlet.
EFFECT: pumping out natural gas from the shut-off section into the operated gas main section without thermal destruction of the gas main antirust coating.
11 cl, 1 dwg
FIELD: oil industry.
SUBSTANCE: method comprises compressing and cooling oil gas, separating cooled oil gas into dried gas and liquefied hydrocarbons, compressing the oil gas without liquid droplets and admixtures by means of a compressor, cooling the compressed gas in air heat exchanger and cooling heat exchanger, supplying the cooled oil gas to the first gas separator for removing the condensate produced during its cooling, supplying oil gas from the first separator to the second heat exchanger for cooling and, then, to the second gas separator after removing condensate, supplying oil gas to the evaporator-separator for further cooling, supplying oil gas from the evaporator-separator to the third gas separator, removing condensate in the third separator, expanding the oil gas in the vortex pipe where it is separated into hot and cold flows, mixing the hot and cold oil gas flows and directing the mixture to the fourth gas separator where the condensate is removed from the gas, directing the dried gas to the second heat exchanger for cooling downstream of the first gas separator and simultaneous heating of the gas, and supplying the oil gas to the main pipeline.
EFFECT: improved oil gas quality and enhanced environmental protection.
9 cl, 5 dwg
FIELD: oil and gas industry.
SUBSTANCE: device comprises units for synthesizing solid natural gases made of water crystal hydrates of methane and thermo-baric storages and chambers for storing them at the gas distributing stations that are additionally provided with at lest one plant for re-gasification of the crystal hydrate of methane whose outlet is connected with the gas distributing nets of gas consumer. The gas of high pressure is supplied to the synthesizers of crystal hydrates of gas from the main pipelines through the turbo-expanders whose outlets are connected with the supply circuits of the synthesizers of crystal hydrates.
EFFECT: enhanced efficiency.
FIELD: gas conveyance means, particularly gas-main lines, gathering lines and manifolds of gas fields for condensate recovery.
SUBSTANCE: device to prevent condensate plug forming in pipeline comprises pipeline with inclined sections and connection elbows with enclosing channel. Discharge condensate pipe is formed in lower part of connection elbow. Condensate pipe is located in funnel-shaped enclosing channel and is connected to accumulation vessel located below ground freezing level. Condensate removal pipeline is installed in accumulation vessel so that the condensate removal pipeline is coaxially retained in vertical enclosing channel.
EFFECT: possibility to maintain thermal gas pipeline regime, which prevents condensate freezing, to remove accumulated condensate due to usage of steam condensation heat generated during condensation of steam present in conveying gas flow.
FIELD: natural gas industry; other industries; production of the gas pipeline blowoff valves.
SUBSTANCE: the invention is pertaining to natural gas industry and is intended for blowing through of the gas pipelines. The technical result of the invention is the increased efficiency of usage of the gas pipeline blowoff valves at augmentation of the quantity of the delivered for utilization of the waste heavy hydrocarbon fractions of the natural gas for their additional condensation in the area of formation of the microswirlings between the exterior funnel-shaped and interior perforated conical walls. In the gas pipeline blowoff valve in the holes of the perforated conical wall there are the curvilinear grooves, which curvature is directed counterclockwise, and the curvature of the guiding vanes is made in the clockwise direction.
EFFECT: the invention ensures the increased efficiency of usage of the gas pipeline blowoff valves.
FIELD: oil industry.
SUBSTANCE: supersonic tube comprises Laval nozzle, cyclonic separator with the blade, diffuser for discharging dried gas, and diffuser for discharging condensed liquid. The blade is made of deformed plate set in the screw groove made in the inner side of the cyclonic separator. The length of the plate is at least ½ of the pitch of the screw groove. The housing of the tube of the cyclonic separator receives locking members whose faces enters the screw groove. The distance between the adjacent locking members mounted in the screw groove is equal to the length of the plate.
EFFECT: enhanced efficiency.
FIELD: gas industry.
SUBSTANCE: method comprises separating the mixture into C1 methane fraction with subsequent supply to gas pipeline and C2+ hydrocarbon fraction that are preliminary stabilized by its liquefying by means of preliminary cooling down to a temperature at least 16°C and supplying to the gas pipeline. The pressure is maintained at a level no less than 3,2 MPa.
EFFECT: enhanced reliability of one-phase transporting.
FIELD: storage or transporting of natural gas.
SUBSTANCE: method comprises cooling natural gas down to a temperature below the temperature of the ambient air and transporting the cooled natural gas.
EFFECT: enhanced efficiency of storage and transporting.
16 cl, 13 dwg
FIELD: the invention refers to energy-conservation technologies of pipeline transportation of natural gas.
SUBSTANCE: it may be used for controlling the technological process of the main pipeline with simultaneous selection out of gas of valuable ethane, propane, butane components. The technical result of the invention is reduction of energy inputs for maintaining pressure in the main pipeline, provision of stabilization of pressure in the main pipeline. The mode of transportation of natural gas along the main pipeline includes its feeding into the main pipeline on the first and the following compressor stations and giving out natural gas from the main pipeline through gas reducing stations and divide it on two flows one of them is directed into the pipeline of high pressure, and the other into a consumer pipe-bend. At that the gas of consumer pipe-bend is preliminary cooled and cleared from condensed and hard fraction, and then further cooling is executed till the temperature below the point of condensation of methane and division of cryogenic liquid and directed to the user, and out of received cryogenic liquid methane is separated from liquid ethane-propane-butane fraction which is returned into the pipeline of high pressure and further into the main pipeline, and detailed methane is directed into the pipe-bend. At that the gas in the pipeline of high pressure is preliminary additionally cooled, compremirated and returned into the main pipeline.
EFFECT: reduces power inputs.
7 cl, 1 dwg
FIELD: engines and pumps.
SUBSTANCE: compressor unit includes engine 34, at least, one compressor 44 with driven shaft 54 driven rotor 38 of engine 34 and a set of wheels 46, 48, 50, 52 with blades fitted on driven shaft 54. The system formed by engine 34 and compressor 44 is arranged in common housing 55 sealed against the gas processed by the compressor unit. Unit housing 55 is formed by jointing together elements 55a, 55b of the said housing fastening engine 34 and compression stage of compressor 44. Elements 55a, 55b of housing 55 are rigidly interconnected and sealed. Rotor 38 of engine 34 and driven shaft 54 of compressor 44 are interconnected by a flexible connector 72 arranged in housing 55. The each of every shaft 54 are fixed by end bearing 40, 42, 56.
EFFECT: simplifying the removal of the engine or compression stages from the common housing with the rotor being kept in its housing by its bearings with no harm to its parts.
7 cl, 5 dwg