CN206129326U - Natural gas pressure energy recycle's inflation electricity generation and cold energy utilization system - Google Patents

Natural gas pressure energy recycle's inflation electricity generation and cold energy utilization system Download PDF

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Publication number
CN206129326U
CN206129326U CN201621143133.5U CN201621143133U CN206129326U CN 206129326 U CN206129326 U CN 206129326U CN 201621143133 U CN201621143133 U CN 201621143133U CN 206129326 U CN206129326 U CN 206129326U
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oil
level
heat exchanger
grades
natural gas
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畅云峰
张金权
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Xi'an Qi Tong New Energy Equipment Co Ltd
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Xi'an Qi Tong New Energy Equipment Co Ltd
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Abstract

The utility model relates to a residual pressure electricity generation and cold energy utilization technical field especially relate to a natural gas pressure energy recycle's inflation electricity generation and cold energy utilization system. The utility model has the advantages of pressure energy recovery efficiency is high, cold energy utilization is efficient, utilize that the concurrent heating is carried out in the air source, whole utilization efficiency is high, economic benefits is good, the utility model discloses a technical scheme include the screw rod expander, the screw rod expander be connected with the generator, preheating heat exchanger and natural gas line are connected, preheating heat exchanger is connected with the screw rod expander, the screw rod expander is connected with the interstage heat exchanger, and the interstage heat exchanger is connected with the screw rod expander, the interstage heat exchanger is connected with heat pump set, the screw rod expander is connected with one -level oil and gas separator, one -level oil and gas separator and second grade oil and gas separator are connected, second grade oil and gas separator is connected with the heat exchanger, heat exchanger and ice machine group link.

Description

Expansion power generation and cold energy use system that a kind of pressure energy of natural gas is recycled
Technical field
This utility model is related to top pressure power generation and cold energy use technical field, more particularly to a kind of pressure energy of natural gas is reclaimed The expansion power generation for utilizing and cold energy use system.
Background technology
The natural gas of national gas distributing system maintains higher pressure in pipe conveying procedure, all the time, its pressure one As in 10MPa or so., to each big city pipe network and industrial user, it is mainly by each for the natural gas transportation of national gas distributing system The voltage regulating station of big city pipe network realizes blood pressure lowering, is typically reduced to 4.0MPa or so from 10MPa, and the natural gas after blood pressure lowering is again by each The urban gate station pressure regulation of big city pipe network is transported to terminal use to 0.4MPa.In the pressure reduction at natural gas pressure regulating station, Can utilize with huge pressure energy and cold energy, at the same time, the temperature of the pipe natural gas after blood pressure lowering is less than -20 DEG C, Have to carry out concurrent heating to natural gas, to ensure that the natural temperature after the pressure regulation of urban gate station is higher than 5 DEG C.Current pressure regulation Station is the pressure that natural gas is reduced by pressure regulating valve, meanwhile, by burning, natural gas is heated to the weather in pipeline, its Substantial amounts of pressure energy, cold energy and heat energy are wasted, if be able to will have by a kind of mode by the pressure energy and cold energy recycle There is very big social benefit and economic benefit.
Because the operating pressure of natural gas is high, sealing requirements are strict, forbid leakage, and the intensity requirement of body is high, existing Technology in be difficult to find a kind of applicable dynamic power machine and carry out energy regenerating.And screw expander is a kind of to be driven by gases at high pressure The dynamic power machine of the negative and positive rotor rotation of dynamic screw rod, its core component is a pair intermeshing negative and positive rotors, and its is special interior Portion's structure, determines that screw expander is suitable for the recovery of pressure energy of natural gas and is generated electricity, its be a kind of range of application very The new and high technology that extensive special recovery pressure energy of natural gas is generated electricity.
After being reclaimed to pressure energy using screw expander, the temperature of natural gas can also be reduced to less than -20 DEG C, after expansion Cryogenic natural gas have huge cold energy, how by the cold energy use, meanwhile, the natural gas temperature after expansion can be risen to again More than 5 DEG C, be pressure energy of natural gas and the another big difficult point in cold energy recycle.
Utility model content
This utility model is that pressure energy and cold energy after the natural gas pressure regulating station pressure regulation that solution prior art is present cannot profits With at the same time, needing to waste substantial amounts of natural gas again is carried out burning the problem of concurrent heating, there is provided a kind of pressure energy of natural gas is returned Expansion power generation and cold energy use system that receipts are utilized.
To solve the problems, such as prior art, the technical solution of the utility model is:A kind of pressure energy of natural gas is reclaimed The expansion power generation for utilizing and cold energy use system, it is characterised in that:Including between screw expander, electromotor, preheating heat exchanger, level Heat exchanger, source pump, one-level gs-oil separator, two grades of gs-oil separators, heat exchanger and ice making units;Described electromotor with Screw expander is set together by shaft coupling, and the gas inlet adapter of described preheating heat exchanger passes through pipeline and natural gas Pipeline connects, and the described gas outlet joint of preheating heat exchanger is connected with the one-level air inlet of screw expander;Described spiral shell Between the one-level air vent of bar decompressor and level heat exchanger gas inlet adapter connection, between level the gas outlet joint of heat exchanger with The secondary inlet mouth connection of screw expander;The refrigerating medium inlet-outlet connector of heat exchanger is by pipeline and the load of source pump between level Cryogen inlet-outlet connector connects;The secondary exhaust of described screw expander is connected with the air inlet of one-level gs-oil separator; The air vent of one-level gs-oil separator is connected with the air inlet of two grades of gs-oil separators;The air vent of two grades of gs-oil separators with change The air inlet of hot device is by pipeline connection, the refrigerating medium inlet-outlet connector of heat exchanger and the refrigerating medium inlet-outlet connector of ice making unit Connection;
Described screw expander is at least provided with one.
The oil return interface of two grades of described gs-oil separators and the secondary oil return interface of one-level gs-oil separator pass through oil pipe Connection, described one-level gs-oil separator and the oil-out of two grades of gs-oil separators is set together with the oil-in of oil pump.
The oil storage tank of described one-level gs-oil separator is connected with the import of oily coarse filter, the oil drain out of oily coarse filter It is connected with the import of oil heater.
The oil drain out of described oil pump is connected with olein filter, and oil drain out and the oil pressure adjusting valve of olein filter connect Connect.
Described oil pressure adjusting valve oil drain out is connected with the oil-feed port of screw expander.
Compared with prior art, advantage of the present utility model is as follows:
This utility model has pressure energy organic efficiency height, cold energy use efficiency high, carries out concurrent heating, entirety using air source Utilization ratio is high, it is good in economic efficiency the advantages of, it can be widely applied in the voltage-regulating system of the urban gate station of natural gass at different levels Pressure energy and cold energy recycle, with very big social benefit and economic benefit.
Description of the drawings
Fig. 1 is structure chart of the present utility model;
Fig. 2 is the structural representation of screw expansion agent;
Description of reference numerals, heat exchanger, 5- heat pumps between 1- screw expanders, 2- electromotors, 3- preheating heat exchangers, 4- levels Unit, 6- one-level gs-oil separators, bis- grades of gs-oil separators of 7-, 8- heat exchangers, 9- ice making units, 10- oil coarse filters, 11- Oil heater, 12- oil pumps, 13- olein filters, 14- oil pressure adjusting valves, 15- one-level bodies, 16- one-level suction end bases, 17- Two grades of bodies, bis- grades of suction end bases of 18-, 19- one-level body glands, 20- one-level male rotors, 21- one-level female rotors, bis- grades of 22- Male rotor, bis- grades of female rotors of 23-, 24- cylinder roller bearings one, 25- one-level dummy pistons, 26- primary oil cylinder sleeves, 27- one-levels Single-row angular contact bearing two, the 31- locking of the single-row angular contact bearing one, 30- of labyrinth seal set, 28- cylinder roller bearings two, 29- Round nut one, 32- coupling assemblies, 33- secondary maze sealing shrouds, 34- cylinder roller bearings two, 35- four-point contact balls, 36- stripped nuts two, bis- grades of female rotor bearing glands of 37-, bis- grades of suction end glands one of 38-, bis- grades of male rotor bearing pressures of 39- Lid, 40-O type sealing rings, 41- axle envelope installation sets, 42- axle envelopes one, 43- axle envelope axle sleeves, 44- mechanical sealing assemblies, 45- axle envelopes 2nd, bis- grades of suction end glands two of 46-, 47- cylinder roller bearings three, bis- grades of dummy pistons of 48-, 49- two-level oil cylinders set, 50- is mono- Row angular contact bearing three.
Specific embodiment
The design is described in detail below in conjunction with the accompanying drawings:
Referring to Fig. 1:Expansion power generation and cold energy use system that a kind of pressure energy of natural gas is recycled, including screw expansion Heat exchanger 4, source pump 5,6, two grades of gs-oil separators of one-level gs-oil separator between machine 1, electromotor 2, preheating heat exchanger 3, level 7th, heat exchanger 8 and ice making unit 9;Described electromotor 2 is set together with screw expander 1 by shaft coupling;
The gas inlet adapter of described preheating heat exchanger 3 is connected by pipeline with natural gas line, and described preheating is changed The gas outlet joint of hot device 3 is connected by pipeline with the one-level air inlet of screw expander 1;In to coming from natural gas line Natural gas carry out preheating heating, the natural gas after preheating enter screw expander 1;The one-level row of described screw expander 1 The gas inlet adapter connection that QI KOU passes through heat exchanger 4 between pipeline and level, the gas outlet joint of heat exchanger 4 passes through pipeline between level It is connected with the secondary inlet mouth of screw expander 1;The refrigerating medium inlet-outlet connector of heat exchanger 4 is by pipeline and source pump between level 5 refrigerating medium inlet-outlet connector connection, the refrigerating medium between level in heat exchanger 4 is pipelined in source pump 5, heat pump machine Heat in air is conveyed to group 5 natural gas between level in heat exchanger 4, has been reached to the natural purpose for carrying out concurrent heating intensification; The secondary exhaust of described screw expander 1 is connected with the air inlet of one-level gs-oil separator 6;One-level gs-oil separator 6 pairs Natural gas is slightly imitated separating and filtering with the mixture of oil;The air vent of one-level gs-oil separator 6 and two grades of gs-oil separators 7 Air inlet connects;Two grades of gs-oil separators 7 carry out accurate separating and filtering to natural gas with the mixture of oil so that in natural gas Lubrication oil content is less than 1mg/Nm3;The air vent of two grades of gs-oil separators 7 is connected with the air inlet of heat exchanger 8 by pipeline, is changed The refrigerating medium inlet-outlet connector of hot device 8 is connected by pipeline with the refrigerating medium inlet-outlet connector of ice making unit 9, inside heat exchanger 8 Refrigerating medium be pipelined in ice making unit 9, the cold in the absorption heat-exchange device 8 of ice making unit 9 carries out ice making;
The oil return interface of two grades of described gs-oil separators 7 and the secondary oil return interface of one-level gs-oil separator 6 are by oil Pipe connects, and described one-level gs-oil separator 6 and the oil-out of two grades of gs-oil separators 7 is arranged on one with the oil-in of oil pump 12 Rise.
The oil storage tank of one-level gs-oil separator 6 is connected with the import of oily coarse filter 10, the oil drain out of oily coarse filter 10 It is connected with the import of oil heater 11;
The lubricating oil of the inside oil storage tank of one-level gs-oil separator 6 enters the entrance of oily coarse filter 10, oily coarse filter Large granular impurity in 10 pairs of lubricating oil carries out coarse filtration;The described oil drain out of oily coarse filter 10 and entering for oil heater 11 Mouth is set together, and the refrigerating medium inside oil heater 11 heats up to lubricating oil;The oil drain out of described oil heater 11 It is set together with the oil-in of oil pump 12, oil pump 12 carries out boosting to setting pressure to lubricating oil;The row of described oil pump 12 Hydraulic fluid port is connected with olein filter 13, and described olein filter 13 carries out accurate mistake to the subparticle impurity in lubricating oil Filter;The oil drain out of described olein filter 13 is connected with oil pressure adjusting valve 14, and oil pressure adjusting valve 14 is adjusted and enters dilating screw The lubricating oil pressure of machine 1, the lubricating oil in the described drain line of oil pressure adjusting valve 14 respectively enters the fuel feeding of dilating screw machine 1 Mouthful, oil pressure is lubricated and provided to dilating screw machine 1.
At least provided with one, one is realized two-stage or multiple expansion to described screw expander 1, multiple stage realize two-stage or Multiple expansion, every screw expander is cascaded during multiple stage.
Screw expander includes one-level body 15,16, two grades of bodies 17 of one-level suction end base and two grades of suction end bases 18, institute The one-level body 15 stated and two grades of bodies 18 are hollow shell, and the one-level suction end 16 of one-level body 15 connects with two grades of bodies 17 Connect, the other end of one-level body 15 is provided with one-level body gland 19, and the other end of two grades of bodies 17 is provided with two grades of suction ends Seat 18, is provided with two grades of suction end glands 1 and two grades of suction end glands 2 46 on two grades of described suction end bases 18;
It is provided with one-level male rotor 20 and one-level female rotor 21 in one-level body 15, described one-level male rotor 20 and one-level Female rotor 21 is relatively set into cylindric, and two side axles of one-level male rotor 20 and one-level female rotor 21 are respectively arranged at one-level body 15 and one-level suction end base 16 in, cylinder roller bearing one 24, is disposed with the exhaust side rotating shaft of one-level male rotor 20 Level dummy piston 25, described the provided circumferentially about of one-level dummy piston 25 has primary oil cylinder sleeve 26, the row of one-level female rotor 21 Cylinder roller bearing 1 is provided with the rotating shaft of gas side;Described cylinder roller bearing 1 is mainly used in bearing one-level male rotor 20 and the radial gas power of one-level female rotor 21;Described one-level dummy piston 25 and primary oil cylinder sleeve 26 is arranged at cylindrical roller The outside of bearing 1, one-level dummy piston 25 is arranged in the aerofluxuss side axle of one-level male rotor 20,
One-level labyrinth is disposed with respectively in the suction side rotating shaft of described one-level male rotor 20 and one-level female rotor 21 Sealing shroud 27, cylinder roller bearing 2 28, single-row contact ball bearing 1, single-row contact ball bearing 2 30 and stripped nut one 31, it is additionally provided with single-row contact ball bearing 3 50, described single-row contact in the suction side rotating shaft of described one-level male rotor 20 Ball bearing 3 50 is arranged at the right side of single-row contact ball bearing 2 30, and described one-level labyrinth seal covers 27 with one-level male rotor 20 Throttling sealing is realized in exhaust side rotating shaft with one-level female rotor 21;Cylinder roller bearing 2 28 is arranged at one-level labyrinth seal set 27 Outside, it is mainly used in bearing the radial gas power of one-level male rotor 20 and one-level female rotor 21, cylinder roller bearing 2 28 Outside be provided with single-row contact ball bearing 1 and single-row contact ball bearing 2 30, be mainly used in bearing the He of one-level male rotor 20 The axial gas power of one-level female rotor 21;Stripped nut 1 is arranged at the outside of single-row contact ball bearing 2 30, main to use In fixed cylinder roller bearing 2 28, single-row contact ball bearing 1 and single-row contact ball bearing 2 30.
It is provided with two grades of male rotors 22 and two grades of female rotors 23 in two grades of bodies 17, described two grades of male rotors 22 and two grades Female rotor 23 is relatively set into cylindric;Described two grades of male rotors 22 and two side axles of two grades of female rotors 23 are respectively arranged at two In level body 17 and two grades of suction end bases 18;
Secondary maze sealing shroud 33, circle are respectively arranged with the suction side rotating shaft of two grades of male rotors 22 and two grades of female rotors 23 Post roller bearing 2 34, four-point contact ball 35 and stripped nut 2 36, described secondary maze sealing shroud 33 and two grades Throttling sealing is realized in the suction side rotating shaft of male rotor 22 and two grades of female rotors 23;Cylinder roller bearing 2 34 is arranged at secondary maze The outside of sealing shroud 33, it is mainly used in bearing the radial gas power of two grades of male rotors 22 and two grades of female rotors 23, cylindrical roller The outside of bearing 2 34 is provided with four-point contact ball 35, is mainly used in bearing two grades of male rotors 22 and two grades of female rotors 23 Axial gas power;Stripped nut 2 36 is arranged at the outside of four-point contact ball 35, is mainly used in fixed cylinder Roller Shaft Hold the inner ring of 2 34 and four-point contact ball 35;Two grades of described female rotor bearing glands 37 are arranged at two grades of suction end bases 18 It is interior, for fixed cylinder roller bearing 2 34 and the outer ring of four-point contact ball 35;Two grades of described suction end glands 1 The outside of two grades of female rotor bearing glands 37 is arranged at, for fixing two grades of female rotor bearing glands 37;
Mechanical sealing assembly 44, two grades of suction end bases are additionally provided with the suction side rotating shaft of two grades of described male rotors 22 Two grades of male rotor bearing glands 39 are additionally provided with 18, two grades of male rotor bearing glands 39 are arranged at four-point contact ball 35 Right side, for fixed cylinder roller bearing 2 34 and the outer ring of four-point contact ball 35, two grades of described male rotor bearing pressures Arrange fluted on the excircle of lid 39, O-ring seal 40 is provided with groove, for sealing the gas of compound expansion endoluminal leak Body;Axle envelope installation set 41 is provided with the inner periphery of two grades of male rotor bearing glands 39, is set on the inner periphery of axle envelope installation set 41 Axle envelope 1 is equipped with, axle envelope 1 is arranged on axle envelope axle sleeve 43, and axle envelope axle sleeve 43 is arranged at the suction side of two grades of male rotors 22 In rotating shaft, axle envelope 1 is contacted with axle envelope axle sleeve 43, for sealing the gas of compound expansion endoluminal leak;Outside axle envelope axle sleeve 43 Side is provided with mechanical sealing assembly 44, for sealing the gas of compound expansion endoluminal leak;
It is respectively arranged with 3 47, two grades of balances of cylinder roller bearing in the exhaust side rotating shaft of two grades of described male rotors 22 to live Plug 48, two-level oil cylinder set 49, is respectively arranged with cylinder roller bearing 3 47 in the exhaust side rotating shaft of two grades of female rotors 23, described Cylinder roller bearing 3 42 is mainly used in bearing the radial gas power of two grades of male rotors 22 and two grades of female rotors 23;Described two grades Dummy piston 48 and two-level oil cylinder's set 49 are arranged at the outside of cylinder roller bearing 3 47, and two grades of dummy pistons 48 are arranged on two grades In the aerofluxuss side axle of male rotor 22, two-level oil cylinder's set 49 is arranged on inside two grades of bodies 17, two grades of described cloth of dummy piston 48 Put in described two-level oil cylinder's set 49, two grades of described dummy pistons 48 in the presence of the lubricating oil with setting pressure, The active force of setting is applied to two grades of male rotors 22, for balancing the gas force effect suffered by two grades of male rotors 22, two grades of oil Cylinder sleeve 49 is arranged on inside two grades of bodies 17, the suction end roller end of described one-level male rotor 20 and two grades of male rotors 22 Exhaust end roller end is connected by coupling assembly 32;The outside of two grades of described male rotor bearing glands 39 is provided with two grades Suction end gland 2 46, for fixing two grades of suction end glands 2 46;Axle is provided with the inner ring of two grades of suction end glands 2 46 Inside front cover 45, for sealing the gas of compound expansion endoluminal leak;
Described one-level dummy piston 25 is arranged in described primary oil cylinder sleeve 26, and described one-level dummy piston 25 exists In the presence of lubricating oil with setting pressure, the active force of setting is applied to one-level male rotor 20, turned for balancing one-level sun Gas force effect suffered by son 20.
Two grades of described dummy pistons 48 are arranged in described two-level oil cylinder's set 49.
Described coupling assembly 32 is arranged on the outside of two grades of dummy pistons 48 and two single-row contact ball bearings 2 30 Outside.
Described primary oil cylinder sleeve 26 is arranged on inside one-level body 15.
The rotating shaft of two grades of described suction ends of male rotor 23 stretches out in two grades of suction end glands 2 46.
The course of work of the present utility model:The high-pressure natural gas for coming from natural gas line enter warmup heater 3, pass through High-pressure natural gas after preheating enter one-level male rotor 20 and one-level female rotor 21 by the air inlet A on one-level suction end base 16 The air-breathing intracavity of composition, completes one-level intake process;The high-pressure natural gas of one-level air-breathing intracavity carry out one-stage expansion, drive one-level Male rotor 20 and one-level female rotor 21 are rotated, and complete one-stage expansion process;Rotate in one-level male rotor 20 and one-level female rotor 21 During, the intermediate pressure after expansion work is forced natural gas and is discharged by vent ports B on one-level body 15, completes one-level row Gas process;Natural gas after one-stage expansion enters heat exchanger 4 between level, because the temperature of the natural gas after one-stage expansion is reduced, needs The cold of natural gas is absorbed by secondary refrigerant liquid, the secondary refrigerant liquid between level in heat exchanger 4 is conveyed to source pump 5, heat Natural gas between 5 levels of pump assembly in heat exchanger 4 is heated, and by the natural gas of heat exchanger between level 4 two grades of suction ends are entered In the air-breathing aperture C of seat 18, into two grades of male rotors 22 and the air-breathing intracavity of two grades of compositions of female rotor 23, secondary inlet mistake is completed Journey;The intermediate pressure natural gas of two grades of air-breathing intracavity carries out compound expansion, drives two grades of male rotors 22 and two grades of 23 turns of female rotors It is dynamic, complete compound expansion process;In two grades of negative and positive rotor rotation processes, two are passed through after the natural gas expansion work of intermediate pressure Vent ports D on level body 17 are discharged, and complete secondary exhaust process;It is natural after the compound expansion of dilating screw machine 1 Contain substantial amounts of lubricating oil in gas, the gas mixture needs to carry out Oil-gas Separation purification, and one-level gs-oil separator 6 is to natural gas Gas mixture carries out primary separation filtration, and two grades of gs-oil separators 7 carry out accurate separating and filtering to gas in natural gas mixture; Natural gas after filtration the reason for temperature is reduced, is needed by ice making unit 9 using refrigerating medium due to natural gas compound expansion Cold carries out ice making(Ice cube or flake ice), the natural gas transportation after heat exchange is to terminal use;One-level gas separating device 6 and two grades of oil gas Lubricating oil inside separator 7 and the lubricating oil that separates in pipe influx to oily coarse filter 10 by slightly being imitated Filter, intercepts the large granular impurity in lubricating oil;Lubricating oil after thick effect is filtered is entered in oil heater 11, by refrigerating medium to profit Lubricating oil is heated;Lubricating oil after heating is forced into setting pressure by oil pump 12, and the lubricating oil after pressurization passes through olein mistake Filter 13 carries out secondary filter, intercepts the molecule in lubricating oil;Lubricating oil difference after the pressure regulation of oil pressure adjusting valve 14 Into the oil-feed port of dilating screw machine 1, oil pressure is lubricated and provided to dilating screw machine 1.
Described above is not the restriction to utility model, and this utility model is also not limited to the example above, this technology Change, remodeling, addition or replacement that the technical staff in field is made in essential scope of the present utility model, belong to this reality With new protection domain.

Claims (6)

1. a kind of pressure energy of natural gas is recycled expansion power generation and cold energy use system, it is characterised in that:It is swollen including screw rod Swollen machine(1), electromotor(2), preheating heat exchanger(3), heat exchanger between level(4), source pump(5), one-level gs-oil separator(6)、 Two grades of gs-oil separators(7), heat exchanger(8)With ice making unit(9);Described electromotor(2)With screw expander(1)By connection Axle device is set together, described preheating heat exchanger(3)Gas inlet adapter be connected with natural gas line by pipeline, it is described Preheating heat exchanger(3)Gas outlet joint and screw expander(1)One-level air inlet connection;Described screw expander (1)One-level air vent and level between heat exchanger(4)Gas inlet adapter connection, heat exchanger between level(4)Gas outlet joint With screw expander(1)Secondary inlet mouth connection;Heat exchanger between level(4)Refrigerating medium inlet-outlet connector by pipeline and heat pump Unit(5)Refrigerating medium inlet-outlet connector connection;Described screw expander(1)Secondary exhaust and one-level gs-oil separator (6)Air inlet connection;One-level gs-oil separator(6)Air vent and two grades of gs-oil separators(7)Air inlet connection;Two grades Gs-oil separator(7)Air vent and heat exchanger(8)Air inlet by pipeline connect, heat exchanger(8)Refrigerating medium import and export Joint and ice making unit(9)Refrigerating medium inlet-outlet connector connection.
2. a kind of pressure energy of natural gas according to claim 1 is recycled expansion power generation and cold energy use system, its It is characterised by:Described screw expander(1)At least provided with one.
3. a kind of pressure energy of natural gas according to claim 1 and 2 is recycled expansion power generation and cold energy use system, It is characterized in that:Two grades of described gs-oil separators(7)Oil return interface and one-level gs-oil separator(6)Secondary oil return interface Connected by oil pipe, described one-level gs-oil separator(6)With two grades of gs-oil separators(7)Oil-out and oil pump(12)Enter Hydraulic fluid port is set together.
4. a kind of pressure energy of natural gas according to claim 3 is recycled expansion power generation and cold energy use system, its It is characterised by:Described one-level gs-oil separator(6)Oil storage tank and oily coarse filter(10)Import connection, oily coarse filter (10)Oil drain out and oil heater(11)Import connection.
5. a kind of pressure energy of natural gas according to claim 4 is recycled expansion power generation and cold energy use system, its It is characterised by:Described oil pump(12)Oil drain out and olein filter(13)Connection, olein filter(13)Oil drain out with Oil pressure adjusting valve(14)Connection.
6. a kind of pressure energy of natural gas according to claim 5 is recycled expansion power generation and cold energy use system, its It is characterised by:Described oil pressure adjusting valve(14)Oil drain out and screw expander(1)Oil-feed port connection.
CN201621143133.5U 2016-10-21 2016-10-21 Natural gas pressure energy recycle's inflation electricity generation and cold energy utilization system Active CN206129326U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106351697A (en) * 2016-10-21 2017-01-25 西安琦通新能源设备有限公司 Natural gas pressure energy recycling expansion power generation and cold energy utilization system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106351697A (en) * 2016-10-21 2017-01-25 西安琦通新能源设备有限公司 Natural gas pressure energy recycling expansion power generation and cold energy utilization system

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