CN108071939B - It is a kind of to realize that Cryogenic air takes the compressed natural gas pressure regulating gas system of heat using storage tank pressure itself - Google Patents
It is a kind of to realize that Cryogenic air takes the compressed natural gas pressure regulating gas system of heat using storage tank pressure itself Download PDFInfo
- Publication number
- CN108071939B CN108071939B CN201711096953.2A CN201711096953A CN108071939B CN 108071939 B CN108071939 B CN 108071939B CN 201711096953 A CN201711096953 A CN 201711096953A CN 108071939 B CN108071939 B CN 108071939B
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- Prior art keywords
- natural gas
- pressure
- vortex tube
- injector
- storage tank
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 114
- 239000003345 natural gas Substances 0.000 title claims abstract description 57
- 239000007789 gas Substances 0.000 title claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 title claims description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 230000006837 decompression Effects 0.000 claims abstract description 7
- 230000033228 biological regulation Effects 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000009046 primary transport Effects 0.000 description 1
- 239000000700 radioactive tracer Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
It is a kind of to realize that Cryogenic air takes the compressed natural gas pressure-reducing gas door station system of heat using storage tank pressure itself, belong to compressed natural gas pressure-reducing gas technical field.The system includes CNG tank car, injector, air temperature type heat exchanger, vortex tube and regulator.The present invention is heating decompressing unit using the pressure-driven formula being made of injector, air temperature type heat exchanger and vortex tube, by natural gas to air constant absorption heat in circulating between injector, air temperature type heat exchange and vortex tube this three, and realize the pressure reduction of high-pressure natural gas simultaneously during heating, CNG heating, decompression just can be achieved at the same time in a manner of achieving the purpose that heat without electricity or water-bath type, energy consumption needed for largely reducing the heating of CNG pressure-reducing station.
Description
Technical field
The invention belongs to compressed natural gas pressure-reducing gas field, it is related to a kind of realizing that Cryogenic air takes using storage tank pressure itself
The compressed natural gas pressure-reducing gas door station system of heat.
Background technique
Compressed natural gas (compressed natural gas, CNG) is the natural gas by compressor low pressure, pressurization
To 20-25Mpa, so that it is compressed into one group of high voltage bearing gas cylinder or tube bank, form compressed natural gas.The effect of compression is to make
Its density increases, and primary transport can carry the natural gas of more quality, is suitble to long-distance transportation, to replace the pipe of long-distance transport pipes
Road mode of movement.
Since natural gas is low-pressure state when user uses, CNG needs to carry out reduced pressure treatment after being transported to by tank car,
Being down to urban pipe network allows just enter pipeline after pressure 0.1-0.4MPa.But CNG in decompression process due to burnt soup imitate
The influence temperature answered can also reduce rapidly therewith, can absorb a large amount of heat from ambient enviroment, if supplementing these heat not in time
Amount will will appear pipeline frosting even valve ice and block up phenomenon, greatly destroy pipeline and its attached pipe fitting valve, be increased to one
Determine temperature and then enter regulator pressure regulation, so that natural gas will not cool under freezing point in pressure regulation, temperature-fall period.
This heating device is essentially two kinds, one is consumption electric energy, electric heating or electric tracer heating system；One is consumption combustion gas, water baths
Furnace water-cycle heating.Both heating systems require to consume a large amount of energy and provide heat to CNG.
Since in existing CNG storage tank, the natural gas of high pressure is directly depressured in regulator, this is a part of huge
Pressure energy lost in vain, be not utilized, at the same also need heating system provide a large amount of heat for plus
Thermal high natural gas.So the present invention propose it is a kind of using storage tank pressure itself realize Cryogenic air take heat compressed natural gas subtract
Pressure gate station system recycles pressure energy in CNG pressure regulation process flow, adopts to solve the technologic deficiency of existing CNG pressure-reducing station pressure regulation
Pressure regulation unit is heated with a set of pressure-driven formula being made of vortex tube, injector and air temperature type heat exchanger, is reached without power consumption
Or the method for heating water bath, so that it may while realizing the purpose of CNG heating, decompression, it largely reduces in CNG pressure regulation technique
Energy consumption needed for heating.
Summary of the invention
The present invention provides a kind of compressed natural gas pressure-reducing gas door station system that heat is taken using storage tank pressure itself realization Cryogenic air
System.The pressure-driven formula heating pressure regulation unit constituted using vortex tube, air temperature type heat exchanger and injector replaces existing heating
Device reduces the pressure difference of regulator, recycles regulator pressure loss, and then realize the purpose without heater energy consumption.
It is as follows that the present invention solves the scheme that technical problem uses:
A kind of compressed natural gas pressure-reducing gas system taking heat using storage tank pressure itself realization Cryogenic air, including CNG storage tank,
Regulator further includes pressure-driven formula heating pressure regulation unit；The compressed natural gas of CNG storage tank is adjusted by the heating of pressure-driven formula
After pressure unit carries out heating decompression, then access regulator；
The pressure-driven formula heating pressure regulation unit is made of vortex tube, air temperature type heat exchanger and injector, wherein spray
The entrance of emitter connects CNG storage tank, the entrance of the outlet connection vortex tube of injector；The cold end and air temperature type heat exchanger of vortex tube
Entrance is connected, the entrance connection of air temperature type heat exchanger exit and injector；The hot end of vortex tube is connected with regulator；
The low pressure natural gas being discharged in the high-pressure natural gas and air temperature type heat exchanger being discharged in CNG storage tank is mixed in injector
It closes, is formed in one after pressing natural gas and vortex tube is entered by injector outlet；It is formed after the decompression of the tangential nozzle of vortex tube high
Speed is vortexed, and due to the Energy separation performance of vortex tube, natural gas is separated into two strands, one natural gas is due to adding in vortex tube
Heat effect heating, and give after natural gas temperature is adjusted to pipe network permission temperature by hot end control valve to regulator；Another stock
The natural gas being discharged from vortex tube cold side outlet is passed through in air temperature type heat exchanger, and heat is absorbed into air；It exchanges heat from air temperature type
The natural gas of device outlet discharge enters injector by the high-speed jet injection in injector；
The natural gas of vortex tube hot end discharge enters regulator and is depressured, and reaches discharge pressure and is finally passed through city pipe
Net.
Beneficial effects of the present invention:
The present invention is driven by injector pressure so that natural gas is in injector, and vortex tube cold side outlet and air temperature type add
It the modes such as circulates in hot device and recycles CNG storage tank pressure energy.Due to the refrigerating capacity of vortex tube cold end, so that entering from vortex tube
A part of natural gas temperature of mouth further decreases, and after being passed through air temperature type heat exchanger, low-temp low-pressure natural gas is sustainable to air
Middle absorption heat improves temperature.And the heating capacity in vortex tube hot end can make another part natural gas of entrance be heated temperature liter
Height is arranged to pipe network.Realize the pressure reduction of compressed natural gas during natural gas heating simultaneously, with reach without
The purpose of CNG heating pressure regulation just can be achieved at the same time in electricity or the mode of water-bath type heating, largely reduces CNG storage tank heating
Required energy consumption.
Detailed description of the invention
Fig. 1 is existing CNG storage tank voltage-regulating system schematic diagram.
Fig. 2 is a kind of compressed natural gas pressure regulating gas system that heat is taken using storage tank pressure itself realization Cryogenic air of the invention
Schematic diagram.
In figure: 1 CNG storage tank；2 heaters；3 regulators；4 vortex tubes；5 air temperature type heat exchangers；6 injectors.
Specific embodiment
A specific embodiment of the invention is described in detail below in conjunction with technical solution and attached drawing.
It is a kind of to realize that Cryogenic air takes the compressed natural gas pressure-reducing gas system of heat using storage tank pressure itself, mainly stored up by CNG
Tank 1, regulator 3, vortex tube 4, air temperature type heat exchanger 5 and injector 6 form.
The compressed natural gas for being transported into pressure-reducing station from CNG storage tank 1 enters pressure-driven formula of the present invention and heats pressure regulation
Regulator 3 is accessed again after unit heating pressure regulation；
Pressure-driven formula heating pressure regulation unit is made of injector 6, vortex tube 4, air temperature type heat exchanger 5, and three is successively
It is connected, forms closed circuit, wherein the cold end of vortex tube 4 is connected with air temperature type heat exchanger 5, and the hot end of vortex tube 4 and pressure regulation fill
3 are set to be connected；The natural gas that the high-pressure natural gas being discharged from CNG storage tank 1 enters injector 6 becomes main working fluid, in injector 6
It expands and accelerates in interior Laval-cavity nozzle, form supersonic jet, the low pressure of injection from the outlet of air temperature type heat exchanger 5 discharge is natural
Gas, mixing chamber of the two in injector 6 carry out momentum, energy exchange, are mixed to form after stream of fluid again by injector 6
The boosting of diffusion room is passed through vortex tube 4 after the outlet of injector 6 forms in one and presses fluid；After natural gas enters vortex tube 4, warp
It crosses the tangential nozzle expansion in vortex tube 4, form high speed vortex after decompression, it, will be natural due to the Energy separation performance of vortex tube 4
Gas is separated into two strands, one natural gas is since the heat effect of vortex tube 4 heats up, and the control valve by being located at hot end will be natural
Temperature degree is sent after being adjusted to pipe network permission temperature to regulator 3；Another strand of natural gas is dropped due to the refrigeration in vortex tube 4
Temperature, the cold end through vortex tube 4 enter air temperature type heat exchanger 5 and absorb heat into air, and the natural gas after heating is changed from air temperature type
The hot outlet of device 5 discharge, returns to injector 6 from the driving fluid entrance of injector 6.
Claims (1)
1. a kind of realize that Cryogenic air takes the compressed natural gas pressure regulating gas system of heat, including CNG storage tank using storage tank pressure itself
(1), regulator (3), which is characterized in that further include pressure-driven formula heating pressure regulation unit；The compressed natural gas of CNG storage tank is logical
After excess pressure drive-type heating pressure regulation unit carries out heating decompression, then access regulator (3)；
The pressure-driven formula heating pressure regulation unit is made of vortex tube (4), air temperature type heat exchanger (5) and injector (6),
In, the entrance of injector (6) connects CNG storage tank, the entrance of outlet connection vortex tube (4) of injector (6)；Vortex tube (4)
Cold end is connected with air temperature type heat exchanger (5) entrance, and air temperature type heat exchanger (5) outlet is connect with the entrance of injector (6)；Vortex tube
(4) hot end is connected with regulator (3)；
The low pressure natural gas being discharged in the high-pressure natural gas being discharged in CNG storage tank and air temperature type heat exchanger (5) is in injector (6)
Mixing forms in one after pressing natural gas and enters vortex tube (4) by injector (6) outlet；Tangential nozzle drop through vortex tube (4)
After pressure formed high speed be vortexed, due to the Energy separation performance of vortex tube (4), natural gas is separated into two strands, one natural gas by
It is sent in the heat effect heating in vortex tube (4), and after natural gas temperature is adjusted to pipe network permission temperature by hot end control valve
To regulator (3)；Another stock is passed through in air temperature type heat exchanger (5) from the natural gas that vortex tube (4) cold side outlet is discharged, to sky
Heat is absorbed in gas；Entered from the natural gas of air temperature type heat exchanger (5) outlet discharge by the high-speed jet injection in injector (6)
Injector (6)；
The natural gas of vortex tube (4) hot end discharge enters regulator (3) and is depressured, and reaches discharge pressure and is finally passed through city
Pipe network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711096953.2A CN108071939B (en) | 2017-11-09 | 2017-11-09 | It is a kind of to realize that Cryogenic air takes the compressed natural gas pressure regulating gas system of heat using storage tank pressure itself |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711096953.2A CN108071939B (en) | 2017-11-09 | 2017-11-09 | It is a kind of to realize that Cryogenic air takes the compressed natural gas pressure regulating gas system of heat using storage tank pressure itself |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108071939A CN108071939A (en) | 2018-05-25 |
| CN108071939B true CN108071939B (en) | 2019-08-20 |
Family
ID=62159622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711096953.2A Active CN108071939B (en) | 2017-11-09 | 2017-11-09 | It is a kind of to realize that Cryogenic air takes the compressed natural gas pressure regulating gas system of heat using storage tank pressure itself |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108071939B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201547496U (en) * | 2009-11-27 | 2010-08-11 | 天津市华迈燃气技术发展有限公司 | Compressed natural gas feeder utilizing vortex tube to reduce pressure and heat up |
| CN102252446A (en) * | 2011-07-08 | 2011-11-23 | 浙江大学 | Ejector-based vortex pipe refrigeration system |
| CN202791341U (en) * | 2012-09-14 | 2013-03-13 | 必拓电子商务有限公司天津机械制造分公司 | Natural gas pressure regulating device with cold quantity output function |
| CN203240279U (en) * | 2013-04-09 | 2013-10-16 | 北京石油化工工程有限公司 | Vortex self-heating natural gas pressure regulating system |
| CN104482784A (en) * | 2014-12-16 | 2015-04-01 | 苟仲武 | Efficient liquid temperature rise gasification device and method |
| RU2550719C1 (en) * | 2013-11-08 | 2015-05-10 | Виктор Иванович Подерюгин | Device of fuel gas preparation for utilisation in cogeneration plants |
| CN204372553U (en) * | 2014-12-18 | 2015-06-03 | 山东益华燃气设备有限公司 | A kind of depressurized system of pipe natural gas door station |
| KR20160134596A (en) * | 2016-09-09 | 2016-11-23 | 박효상 | Engine system using vortex tube |
-
2017
- 2017-11-09 CN CN201711096953.2A patent/CN108071939B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201547496U (en) * | 2009-11-27 | 2010-08-11 | 天津市华迈燃气技术发展有限公司 | Compressed natural gas feeder utilizing vortex tube to reduce pressure and heat up |
| CN102252446A (en) * | 2011-07-08 | 2011-11-23 | 浙江大学 | Ejector-based vortex pipe refrigeration system |
| CN202791341U (en) * | 2012-09-14 | 2013-03-13 | 必拓电子商务有限公司天津机械制造分公司 | Natural gas pressure regulating device with cold quantity output function |
| CN203240279U (en) * | 2013-04-09 | 2013-10-16 | 北京石油化工工程有限公司 | Vortex self-heating natural gas pressure regulating system |
| RU2550719C1 (en) * | 2013-11-08 | 2015-05-10 | Виктор Иванович Подерюгин | Device of fuel gas preparation for utilisation in cogeneration plants |
| CN104482784A (en) * | 2014-12-16 | 2015-04-01 | 苟仲武 | Efficient liquid temperature rise gasification device and method |
| CN204372553U (en) * | 2014-12-18 | 2015-06-03 | 山东益华燃气设备有限公司 | A kind of depressurized system of pipe natural gas door station |
| KR20160134596A (en) * | 2016-09-09 | 2016-11-23 | 박효상 | Engine system using vortex tube |
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| Publication number | Publication date |
|---|---|
| CN108071939A (en) | 2018-05-25 |
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Effective date of registration: 20200812 Address after: Room 209, 2 / F, block B, science and Technology Park, Dalian University of technology, No. 80, software park, high tech Industrial Park, Dalian City, Liaoning Province Patentee after: Dalian University of Technology science and Technology Park Co.,Ltd. Address before: 116024 Liaoning, Dalian, Ganjingzi Ling Road, No. 2 Patentee before: DALIAN University OF TECHNOLOGY |
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Effective date of registration: 20230615 Address after: No. 103, No. 26, Yucai Road, Jiangbei District, Ningbo, Zhejiang 315000 Patentee after: Dalian technology development (Ningbo) Co.,Ltd. Address before: Room 209, Floor 2, Science Park B, Dalian University of Technology, No. 80, Software Park, Dalian Hi tech Industrial Park, Liaoning 116023 Patentee before: Dalian University of Technology science and Technology Park Co.,Ltd. |
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Effective date of registration: 20240819 Address after: 116011 57A Tongqing Street, Xigang District, Dalian City, Liaoning Province Patentee after: Dalian University of Technology science and Technology Park Co.,Ltd. Country or region after: China Address before: No. 103, No. 26, Yucai Road, Jiangbei District, Ningbo, Zhejiang 315000 Patentee before: Dalian technology development (Ningbo) Co.,Ltd. Country or region before: China |