CN107965667A - It is a kind of to realize that Cryogenic air takes the pipe natural gas voltage-regulating system of heat using pipeline pressure itself - Google Patents
It is a kind of to realize that Cryogenic air takes the pipe natural gas voltage-regulating system of heat using pipeline pressure itself Download PDFInfo
- Publication number
- CN107965667A CN107965667A CN201711096578.1A CN201711096578A CN107965667A CN 107965667 A CN107965667 A CN 107965667A CN 201711096578 A CN201711096578 A CN 201711096578A CN 107965667 A CN107965667 A CN 107965667A
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- natural gas
- pressure
- vortex tube
- injector
- png
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Classifications
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- 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
-
- 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
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/02—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effect; using vortex effect
- F25B9/04—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using Joule-Thompson effect; using vortex effect using vortex effect
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
It is a kind of to realize that Cryogenic air takes the pipe natural gas voltage-regulating system of heat using pipeline pressure itself, belong to pipe natural gas voltage-regulating technique field.The system includes incoming PNG, injector, air temperature type heat exchanger, vortex tube and regulator.The present invention is heating pressure regulation unit using the pressure-driven formula being made of injector, air temperature type heat exchanger and vortex tube, by in natural gas circulating between injector, air temperature type heat exchange and vortex tube this three to air constant absorption heat, and the pressure for realizing high-pressure natural gas at the same time during heating reduces, PNG heating, pressure regulation just can be achieved at the same time in a manner of achieving the purpose that without electricity or the heating such as water-bath type, largely reduce PNG point defeated stations or the energy consumption needed for urban gate station heating PNG.
Description
Technical field
The invention belongs to pipe natural gas pressure regulation field, is related to one kind and realizes that Cryogenic air takes using pipeline pressure itself
The pipe natural gas voltage-regulating system of heat.
Background technology
Natural gas line refers to natural gas (associated gas for including oil field production) exploiting ground or treatment plant's supercharging from field with "nine squares"
The pipeline of urban gas center or Industry enterprise customer is transported to, also known as gas pipeline, carries out what is transported over long distances in pipeline
Natural gas is known as pipe natural gas (pipe natural gas, PNG).Among long distance gas pipeline transportational process, due to
Raising gas pressure, which can reduce, transports cost, and pipe design transports pressure generally in 10Mpa or so, even more high.
Due to being delivered to end user from initial gas inlet conveying, natural gas is low pressure shape when user uses
State, could be by height in this long distance delivery and the process of distribution, it is necessary to carry out pressure regulation processing by point defeated station and urban gate station
The natural gas depressurization of pressure to urban pipe network allows the low-pressure state of pressure 0.1-0.4Mpa for users to use.
, can be from ring around but influence temperature of the PNG due to Joule Thomson effect during pressure regulation can also reduce rapidly therewith
Border absorbs substantial amounts of heat, if supplementing these heats not in time will occur that pipeline frosting even valve ice blocks up phenomenon, greatly
Destruction pipeline and its attached pipe fitting valve, formation build the pressure, this not only reduces the transfer efficiency of natural gas, and to natural
Gas point defeated station, urban gate station cause huge security risk, threaten normal safety in production.So PNG enters regulator
Before, it is necessary to which increase a set of heating unit first carries out heat temperature raising to the PNG of high pressure, certain temperature and then entrance are increased to
Regulator pressure regulation so that in pressure regulation, temperature-fall period, natural gas will not be cooled under freezing point.This heating unit is essentially
Two kinds, one kind is consumption electric energy, electrical heating or electric tracer heating system；One kind is to consume combustion gas, Water Circulation for Hot Water Boiler heating system.
Both heating systems are required for consuming substantial amounts of energy and provide heat to PNG.
Since in existing PNG pressure regulation technological process, the natural gas of high pressure is directly depressured in regulator, this portion
Divide huge pressure energy to be lost in vain, be not utilized, while also need to heating unit and substantial amounts of heat is provided
For heating high-pressure natural gas.So present invention proposition is a kind of to realize that Cryogenic air takes the pipeline day of heat using pipeline pressure itself
Right gas voltage-regulating system reaches decompression at the same time, the method for heating solves the existing technologic deficiency of pipe natural gas pressure regulation, recycles
Pressure energy in PNG pressure regulation technological processes, using a set of pressure-driven formula being made of vortex tube, injector and air temperature type heat exchanger
Decompressing unit is heated, reaches the method without heating such as power consumption or water-bath types, so that it may while realize the purpose of PNG heating pressure regulation,
Largely reduce in PNG pressure regulation techniques and heat required energy consumption.
The content of the invention
Present invention offer is a kind of to realize that Cryogenic air takes the pipe natural gas decompression door station system of heat using pipeline pressure itself
System.The pressure-driven formula heating pressure regulation unit formed 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：
It is a kind of to realize that Cryogenic air takes the pipe natural gas decompression door station system of heat, including incoming using pipeline pressure itself
PNG, regulator, further include pressure-driven formula heating pressure regulation unit；The high-pressure natural gas of incoming PNG is added by pressure-driven formula
After hot pressure regulation unit carries out heating decompression, then access pressure regulation dress.
The pressure-driven formula heating pressure regulation unit is made of vortex tube, air temperature type heat exchanger and injector, wherein, spray
The entrance connection incoming PNG of emitter, the entrance of the outlet connection vortex tube of injector；The cold end of vortex tube and air temperature type heat exchanger
Entrance is connected, the entrance connection of air temperature type heat exchanger exit and injector；The hot junction of vortex tube is connected with regulator；
The high-pressure natural gas of incoming PNG discharges is mixed with the low pressure natural gas discharged in air temperature type heat exchanger in injector
Close, formed in one and vortex tube is entered by injector outlet after pressure natural gas；Formed after the tangential nozzle decompression 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 heats up, and is adjusted to send to regulator after pipe network allows temperature by natural gas temperature by hot junction control valve；Another stock
It is passed through from the natural gas of vortex tube cold side outlet discharge in air temperature type heat exchanger, heat is absorbed into air；Exchange 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 junction discharge is depressured into regulating device, is reached discharge pressure and is finally passed through city pipe
Net.
Beneficial effects of the present invention：
The present invention drives natural gas to add in injector, vortex tube cold side outlet and air temperature type by injector pressure
The mode such as circulate in hot device and recycle incoming PNG pressure energies.Due to the refrigerating capacity of vortex tube cold end so that enter from vortex tube
A part of natural gas temperature of mouth further reduces, 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 junction can make another part natural gas of entrance be heated temperature liter
Height is arranged to flow down or urban pipe network to point defeated station.Being realized at the same time during natural gas heats up reduces pipe high-pressure natural gas
Pressure, just can be achieved at the same time in a manner of reaching and need not consume electric energy or heating water bath high-pressure natural gas heating, decompression
Purpose, largely reduces the energy consumption needed for the high-pressure natural gas heating from incoming PNG pipelines out.
Brief description of the drawings
Fig. 1 is existing incoming pipeline natural gas pressure regulating system schematic.
Fig. 2 is that a kind of of the present invention realizes that Cryogenic air takes the pipe natural gas voltage-regulating system of heat using pipeline pressure itself
Schematic diagram.
In figure：1 incoming PNG；2 heaters；3 regulators；4 vortex tubes；5 air temperature type heat exchangers；6 injectors.
Embodiment
Describe the embodiment of the present invention in detail below in conjunction with technical solution and attached drawing.
It is a kind of to realize that Cryogenic air takes the pipe natural gas voltage-regulating system of heat, main origin stream using pipeline pressure itself
PNG1, regulator 3, vortex tube 4, air temperature type heat exchanger 5 and injector 6 form.
Transported from incoming PNG 1 enter into Natural Gas Station or the high-pressure natural gas at urban gate station station it is of the present invention
Regulator 3 is accessed again after pressure-driven formula heating pressure regulation, 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 hot junction and the pressure regulation of vortex tube 4 fill
3 are put to be connected；Entering the natural gas of injector 6 from the high-pressure natural gas of incoming PNG1 discharges becomes main working fluid, in injector 6
Expand and accelerate in interior Laval-cavity nozzle, form supersonic jet, injection is natural from the low pressure of the outlet of air temperature type heat exchanger 5 discharge
Gas, the two mixing chamber in injector 6 carry out momentum, energy exchange, are mixed to form after stream of fluid again by injector 6
Diffusion room is boosted, and is formed in the outlet of injector 6 in one after pressing fluid and is passed through vortex tube 4；After natural gas enters vortex tube 4, warp
Cross the tangential nozzle expansion in vortex tube 4, vortex at a high speed is formed after decompression, will be natural due to the Energy separation performance of vortex tube 4
Gas is separated into two strands, one natural gas is incited somebody to action naturally since the heat effect of vortex tube 4 heats up, and by the control valve positioned at hot junction
Temperature degree, which is adjusted to pipe network, to be allowed to send to regulator 3 after more than temperature；Another strand of natural gas is due to the refrigeration in vortex tube 4
Cooling, the cold end through vortex tube 4 absorbs heat into air into air temperature type heat exchanger 5, and the natural gas after heating is from air temperature type
The outlet of heat exchanger 5 discharge, injector 6 is returned to from the driving fluid entrance of injector 6.
Claims (1)
1. a kind of realize that Cryogenic air takes the pipe natural gas voltage-regulating system of heat, including incoming PNG using pipeline pressure itself
(1), regulator (3), it is characterised in that further include pressure-driven formula heating pressure regulation unit；The high-pressure natural gas of incoming PNG leads to
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), its
In, the entrance connection incoming PNG of injector (6), the entrance of the 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 connected with the entrance of injector (6)；Vortex tube
(4) hot junction is connected with regulator (5)；
The high-pressure natural gas of incoming PNG discharges is mixed with the low pressure natural gas of discharge in air temperature type heat exchanger (5) in injector (6)
Close, formed in one and vortex tube (4) is entered by injector (6) outlet after pressure natural gas；Tangential nozzle decompression through vortex tube (4)
Afterwards formed at a high speed be vortexed, due to the Energy separation performance of vortex tube (4), natural gas is separated into two strands, one natural gas due to
In vortex tube (4) heat effect heating, and by hot junction control valve by natural gas temperature be adjusted to pipe network allow temperature after send to
Regulator (5)；The natural gas that another stock is discharged from vortex tube (4) cold side outlet is passed through in air temperature type heat exchanger (5), to air
Middle absorption heat；Spray is entered by the high-speed jet injection in injector (6) from the natural gas of air temperature type heat exchanger (5) outlet discharge
Emitter (6)；
The natural gas of vortex tube (4) hot junction discharge is depressured into regulating device (5), is reached discharge pressure and is finally passed through city
Pipe network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711096578.1A CN107965667B (en) | 2017-11-09 | 2017-11-09 | It is a kind of to realize that Cryogenic air takes the pipe natural gas voltage-regulating system of heat using pipeline pressure itself |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711096578.1A CN107965667B (en) | 2017-11-09 | 2017-11-09 | It is a kind of to realize that Cryogenic air takes the pipe natural gas voltage-regulating system of heat using pipeline pressure itself |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107965667A true CN107965667A (en) | 2018-04-27 |
| CN107965667B CN107965667B (en) | 2019-08-20 |
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| CN201711096578.1A Active CN107965667B (en) | 2017-11-09 | 2017-11-09 | It is a kind of to realize that Cryogenic air takes the pipe natural gas voltage-regulating system of heat using pipeline pressure itself |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107810454A (en) * | 2015-06-25 | 2018-03-16 | 彼得罗菲奥伦蒂尼有限公司 | For the system and method for the pressure for adjusting gas |
| CN109794077A (en) * | 2019-03-15 | 2019-05-24 | 南京碧林环保科技有限公司 | White device is taken off using the flue gas of high-pressure natural gas overbottom pressure and flue gas takes off whitening method |
| CN109854951A (en) * | 2018-12-24 | 2019-06-07 | 涿州滨海燃气有限公司 | High voltage rail pressure classification utilizes system |
| CN110513078A (en) * | 2019-08-30 | 2019-11-29 | 中国石油集团川庆钻探工程有限公司 | A kind of well head natural gas adjustment device for Oil testing |
| CN110617049A (en) * | 2019-09-30 | 2019-12-27 | 中国石油集团川庆钻探工程有限公司 | A dehydration cooling system for well head natural gas |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107810454A (en) * | 2015-06-25 | 2018-03-16 | 彼得罗菲奥伦蒂尼有限公司 | For the system and method for the pressure for adjusting gas |
| CN107810454B (en) * | 2015-06-25 | 2020-12-01 | 彼得罗菲奥伦蒂尼有限公司 | System and method for regulating the pressure of a gas |
| CN109854951A (en) * | 2018-12-24 | 2019-06-07 | 涿州滨海燃气有限公司 | High voltage rail pressure classification utilizes system |
| CN109794077A (en) * | 2019-03-15 | 2019-05-24 | 南京碧林环保科技有限公司 | White device is taken off using the flue gas of high-pressure natural gas overbottom pressure and flue gas takes off whitening method |
| CN110513078A (en) * | 2019-08-30 | 2019-11-29 | 中国石油集团川庆钻探工程有限公司 | A kind of well head natural gas adjustment device for Oil testing |
| CN110617049A (en) * | 2019-09-30 | 2019-12-27 | 中国石油集团川庆钻探工程有限公司 | A dehydration cooling system for well head natural gas |
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| CN107965667B (en) | 2019-08-20 |
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