CN102230576A - Air-temperature heat exchange type compressed natural gas pressure-relief device - Google Patents
Air-temperature heat exchange type compressed natural gas pressure-relief device Download PDFInfo
- Publication number
- CN102230576A CN102230576A CN2011101561902A CN201110156190A CN102230576A CN 102230576 A CN102230576 A CN 102230576A CN 2011101561902 A CN2011101561902 A CN 2011101561902A CN 201110156190 A CN201110156190 A CN 201110156190A CN 102230576 A CN102230576 A CN 102230576A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- natural gas
- ball valve
- compressed natural
- temperature heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses an air-temperature heat exchange type compressed natural gas pressure-relief device which is composed of a compressed natural gas inlet, an inlet high-pressure ball valve, an emergency cutoff valve, a high-pressure air storage tank, a primary pressure regulator pipeline, a primary air temperature heat exchanger, a secondary pressure regulator, a secondary air temperature heat exchanger, an outlet ball valve and a natural gas outlet, wherein all the components are connected in series via pipelines; the primary pressure regulator comprises a pipeline A and a pipeline B which are connected in parallel; the pipeline A comprises a pipeline-A ball valve and a pipeline-A primary pressure regulator which are connected in series; and the pipeline B comprises a pipeline-B ball valve and a pipeline-B primary pressure regulator which are connected in series. The air-temperature heat exchange type compressed natural gas pressure-relief device has the advantages of being simple in structure, convenient to operate and maintain, easy to implement, safe and reliable, and ensuring that the operation cost and maintenance cost are lowered and energy is saved, thus the advantages of low carbon and environmental friendliness can be embodied.
Description
(1) technical field
The present invention relates to the corollary equipment that compressed natural gas is used, particularly a kind of sky temperature heat exchange-type compressed natural gas decompressor.
(2) background technique
In current society constantly developed, rock gas became indispensable a kind of energy, and the form that compressed natural gas uses as a kind of rock gas has become industry and a large amount of convenient energies that use of resident.The foundation of the middle swivel link-compressed natural gas pressure-reducing station that uses as rock gas needs specialized apparatus usually, comprising there being high-pressure natural gas to use the equipment that must carry out heat exchange, consequently pressure regulating equipment is damaged otherwise can produce cryogenic gas during the compressed natural gas decompression, cause danger.For fear of this problem, compressed natural gas must carry out preheating earlier in use and can reduce pressure.The heat exchange of compressed natural gas at present adopts the mode of circulating hot water or electrothermal water bath to carry out heat exchange usually, has increased cost and maintenance cost to equipment operation so virtually.
(3) summary of the invention
The objective of the invention is at above-mentioned existing problems, a kind of simple in structure, easy operating, easy to maintenance and safe and reliable empty temperature heat exchange-type compressed natural gas decompressor are provided.
Technological scheme of the present invention:
A kind of sky temperature heat exchange-type compressed natural gas decompressor, form and be connected in series by the empty warm heat exchanger of compressed natural gas import, import high-pressure ball valve, Emergeny Cutoff Valves, high pressure tank, one-level pressure governor pipeline, one-level, secondary pressure governor, the empty warm heat exchanger of secondary, outlet ball valve and gas outlet by pipeline, wherein one-level pressure governor pipeline is the A pipeline and the B pipeline of two parallel connections, the A pipeline comprises A pipeline ball valve and the A pipeline one-level pressure governor that is connected in series, and the B pipeline comprises B pipeline ball valve and the B road one-level pressure governor that is connected in series.
Working procedure of the present invention:
The compressed natural gas storage tank of sled car is linked to each other with the compressed natural gas import of this device.After compressed natural gas enters into this device,, enter into high pressure tank through inlet valve, pneumatic cut-off valve.The compressed natural gas pressure of general sled car storage tank is 18MPa, when connecting source of the gas, when the pressure of high pressure tank reaches 10MPa, closes Emergeny Cutoff Valves; When the pressure of high pressure tank reaches 3MPa, open Emergeny Cutoff Valves again, the pressure in the high pressure tank is fluctuateed in 3-10MPa, prevent that pressure reduction is excessive dangerous on the one hand, guaranteed the flow of required rock gas simultaneously again.After this rock gas reduced pressure through the one-level pressure governor, pressure was 1.5MPa, and this moment, the temperature of this gas will reduce 40-50 ℃.This gas enters into the exchange heat of the empty warm heat exchanger of one-level and air, makes gas temperature reach ambient temperature.Rock gas reduces pressure again through the secondary pressure governor after the empty warm vaporizer of one-level comes out, with pressure from entering into the heat exchange of empty warm vaporizer of secondary and air after 1.5MPa reduces to 0.4MPa once more.Rock gas temperature before there be not heat exchange has reduced 5-6 ℃, through rock gas being heated to ambient temperature after the empty warm heat exchanger heat exchange of secondary, enters into the pipe network of natural gas then.Because pressure reduction is very big, can the phenomenon of freezing appear at the rear side of pressure governor during use, if long-time the use can influence the proper functioning of pressure governor, so it is standby to increase the pressure governor of one tunnel parallel connection at one-level pressure governor place.
Advantage of the present invention is: this apparatus structure is simple, easy-to-operat, easy to maintenance, easy to implement and safe and reliable; Not only can cut operating costs and maintenance cost, but also save the energy, embody the advantage of low-carbon (LC) and environmental protection.
(4) description of drawings
Accompanying drawing is this device schematic flow sheet.
Among the figure: 1. the empty warm heat exchanger 12. of compressed natural gas import 2. empty warm heat exchanger 10. secondary pressure governors 11. secondarys of import high-pressure ball valve 3. Emergeny Cutoff Valvess, 4. high pressure tank 5.A pipeline ball valve 6.A pipeline one-level pressure governor 7.B pipeline ball valve 8.B road one-level pressure governor 9. one-levels exports ball valves 13. gas outlets
(5) embodiment
Embodiment: a kind of sky temperature heat exchange-type compressed natural gas decompressor, by compressed natural gas import 1, import high-pressure ball valve 2, Emergeny Cutoff Valves 3, high pressure tank 4, one-level pressure governor pipeline, the empty warm heat exchanger 9 of one-level, secondary pressure governor 10, the empty warm heat exchanger 11 of secondary, outlet ball valve 12 and gas outlet 13 are formed and are connected in series by pipeline, wherein one-level pressure governor pipeline is the A pipeline and the B pipeline of two parallel connections, the A pipeline comprises A pipeline ball valve 5 and the A pipeline one-level pressure governor 6 that is connected in series, and the B pipeline comprises B pipeline ball valve 7 and the B road one-level pressure governor 8 that is connected in series.
Among this embodiment, import high-pressure ball valve, Emergeny Cutoff Valves, A pipeline ball valve and B road ball valve all adopt German MHA DN25 product; The high pressure tank of four parallel connections all adopts a day extra large 200L*4PN250 product; A pipeline one-level pressure governor and B pipeline one-level pressure governor are German MHA DN25 product; Empty warm heat exchanger of one-level and the empty warm heat exchanger of secondary all adopt new master's 500M3/H PN25MPa product; The secondary pressure governor adopts the EZR DN50 product of the U.S.; The outlet ball valve is the two high DN80 products in homemade Shanghai; The inlet/outlet pipeline is high pressure flange and connects.
Claims (1)
1. sky temperature heat exchange-type compressed natural gas decompressor, it is characterized in that: form and be connected in series by pipeline by the empty warm heat exchanger of compressed natural gas import, import high-pressure ball valve, Emergeny Cutoff Valves, high pressure tank, one-level pressure governor pipeline, one-level, secondary pressure governor, the empty warm heat exchanger of secondary, outlet ball valve and gas outlet, wherein one-level pressure governor pipeline is the A pipeline and the B pipeline of two parallel connections, the A pipeline comprises A pipeline ball valve and the A pipeline one-level pressure governor that is connected in series, and the B pipeline comprises B pipeline ball valve and the B road one-level pressure governor that is connected in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101561902A CN102230576A (en) | 2011-06-10 | 2011-06-10 | Air-temperature heat exchange type compressed natural gas pressure-relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101561902A CN102230576A (en) | 2011-06-10 | 2011-06-10 | Air-temperature heat exchange type compressed natural gas pressure-relief device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102230576A true CN102230576A (en) | 2011-11-02 |
Family
ID=44843173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101561902A Pending CN102230576A (en) | 2011-06-10 | 2011-06-10 | Air-temperature heat exchange type compressed natural gas pressure-relief device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102230576A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575743A (en) * | 2017-07-26 | 2018-01-12 | 四川凯德源科技有限公司 | A kind of efficiently air temperature heat exchange type compressed natural gas pressure-relief device and decompression method |
| CN110848572A (en) * | 2019-11-20 | 2020-02-28 | 华陆工程科技有限责任公司 | For supercritical CO2Anti-icing system and method for safe discharge of power generation system |
| CN112050015A (en) * | 2020-09-22 | 2020-12-08 | 华润（南京）市政设计有限公司 | Natural gas pressure regulating back heat exchange heating device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000028218A (en) * | 1998-07-09 | 2000-01-28 | Sanyo Electric Co Ltd | Onboard refrigeration circuit |
| CN101158443A (en) * | 2007-10-19 | 2008-04-09 | 北京科技大学 | Space-insolated oxygen gas conveying system and method for pressure releasing and energy-saving by coal wind chest technology |
| CN201281224Y (en) * | 2008-10-28 | 2009-07-29 | 赵先勤 | High-pressure compressed gas discharging device |
| CN201547497U (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 pressure regulating gas supply device by adopting air-temperature heat exchanger |
| CN201706197U (en) * | 2010-06-24 | 2011-01-12 | 天津市华迈燃气技术发展有限公司 | Natural gas depressurizing device provided with single heat exchanger |
| CN202125727U (en) * | 2011-06-10 | 2012-01-25 | 天津华迈燃气装备股份有限公司 | Air temperature heat exchange type decompression device for compressed natural gas |
-
2011
- 2011-06-10 CN CN2011101561902A patent/CN102230576A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000028218A (en) * | 1998-07-09 | 2000-01-28 | Sanyo Electric Co Ltd | Onboard refrigeration circuit |
| CN101158443A (en) * | 2007-10-19 | 2008-04-09 | 北京科技大学 | Space-insolated oxygen gas conveying system and method for pressure releasing and energy-saving by coal wind chest technology |
| CN201281224Y (en) * | 2008-10-28 | 2009-07-29 | 赵先勤 | High-pressure compressed gas discharging device |
| CN201547497U (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 pressure regulating gas supply device by adopting air-temperature heat exchanger |
| CN201706197U (en) * | 2010-06-24 | 2011-01-12 | 天津市华迈燃气技术发展有限公司 | Natural gas depressurizing device provided with single heat exchanger |
| CN202125727U (en) * | 2011-06-10 | 2012-01-25 | 天津华迈燃气装备股份有限公司 | Air temperature heat exchange type decompression device for compressed natural gas |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107575743A (en) * | 2017-07-26 | 2018-01-12 | 四川凯德源科技有限公司 | A kind of efficiently air temperature heat exchange type compressed natural gas pressure-relief device and decompression method |
| CN110848572A (en) * | 2019-11-20 | 2020-02-28 | 华陆工程科技有限责任公司 | For supercritical CO2Anti-icing system and method for safe discharge of power generation system |
| CN112050015A (en) * | 2020-09-22 | 2020-12-08 | 华润（南京）市政设计有限公司 | Natural gas pressure regulating back heat exchange heating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106640246A (en) | Safe operation realizing system and method using pressure energy of natural gas pipeline network | |
| CN201547497U (en) | Compressed natural gas pressure regulating gas supply device by adopting air-temperature heat exchanger | |
| CN104791602A (en) | LNG (liquefied natural gas) fuel supply method and device utilizing BOG (boil-off gas) preferentially | |
| CN105135208A (en) | Compression recycling method for evaporation gas of liquefied natural gas | |
| CN104534271A (en) | CNG and HCNG mixing and refilling device and method | |
| CN102563351A (en) | Gas depressurizing heating device and gas depressurizing heating method | |
| CN102230576A (en) | Air-temperature heat exchange type compressed natural gas pressure-relief device | |
| CN202125727U (en) | Air temperature heat exchange type decompression device for compressed natural gas | |
| CN208011287U (en) | A kind of gas transmission emergency shutoff device | |
| CN202580622U (en) | Movable skid-mounted oil field associated gas pressure regulation device | |
| CN102679151A (en) | Movable skid-mounted type oilfield associated gas pressure regulating device | |
| CN202791322U (en) | LNG (liquefied natural gas) gasification station | |
| CN105003310A (en) | Pressure energy electricity generation compression system of natural gas pipe network | |
| CN204437709U (en) | The uninterrupted pressure regulation heat-exchanger rig of a kind of CNG | |
| CN203718372U (en) | Skid-mounted mobile CNG (compressed natural gas) supply device | |
| CN104019358A (en) | Flare gas suction compressor series system | |
| CN206310233U (en) | Liquefied natural gas storage tank BOG gas cold energy recycle systems | |
| CN206626398U (en) | A kind of LNG and CNG double-purposes regulator | |
| CN214741487U (en) | Natural gas turbine decompression power generation system | |
| CN203441638U (en) | Natural-gas engine gas-supply system | |
| CN103196227B (en) | Conduction oil furnace capable of preventing conduction oil from coking in furnace tube and using method | |
| CN203731092U (en) | Device for pressurizing raw natural gas by using natural gas pipeline network pressure energy | |
| CN202381985U (en) | Pressure relief device of storage tank | |
| JOP20190309B1 (en) | Method and system for bringing a nuclear power plant into a safe state after extreme effect | |
| CN206770974U (en) | Multifunctional mobile gasification sled |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111102 |