CN202125727U - Air temperature heat exchange type decompression device for compressed natural gas - Google Patents
Air temperature heat exchange type decompression device for compressed natural gas Download PDFInfo
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- CN202125727U CN202125727U CN 201120195431 CN201120195431U CN202125727U CN 202125727 U CN202125727 U CN 202125727U CN 201120195431 CN201120195431 CN 201120195431 CN 201120195431 U CN201120195431 U CN 201120195431U CN 202125727 U CN202125727 U CN 202125727U
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- pipeline
- natural gas
- ball valve
- temperature heat
- compressed natural
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Abstract
An air temperature heat exchange type decompression device for compressed natural gas is composed of a compressed natural gas inlet, an inlet high pressure ball valve, an emergency stop valve, a high pressure gas storage tank, a first level voltage regulator pipeline, a first level air temperature heat exchanger, a second level voltage regulator, a second level air temperature heat exchanger, an outlet ball valve and a natural gas outlet, and the compressed natural gas inlet, the inlet high pressure ball valve, the emergency stop valve, the high pressure gas storage tank, the first level voltage regulator pipeline, the first level air temperature heat exchanger, the second level voltage regulator, the second level air temperature heat exchanger, the outlet ball valve and the natural gas outlet are in series connection through pipelines. The first level voltage regulator pipeline is formed by an A pipeline and a B pipeline which are in parallel connection, wherein the A pipeline comprises an A pipeline ball valve and an A pipeline first level voltage regulator which are in series connection, and the B pipeline comprises a B pipeline ball valve and a B pipeline first level voltage regulator which are in series connection. The air temperature heat exchange type decompression device for compressed natural gas has the advantages of being simple in structure, convenient to operate and maintain, easy to implement, safe and reliable, can not only reduce operating cost and maintenance cost, but also save energy, and displays the advantages of low carbon and environment protection.
Description
(1) technical field
The utility model 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) model utility content
The purpose of the utility model is to above-mentioned existing problems, and 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.
The technological scheme of the utility model:
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 through 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.
The working procedure of the utility model:
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 through the secondary pressure governor after the empty warm vaporizer of one-level comes out again, 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 can 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 subsequent use to increase the pressure governor of one tunnel parallel connection at one-level pressure governor place.
The utility model has the advantages that: 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 practice thrift 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; Form and be connected in series by the empty warm heat exchanger of the empty warm heat exchanger of compressed natural gas import 1, import high-pressure ball valve 2, Emergeny Cutoff Valves 3, high pressure tank 4, one-level pressure governor pipeline, one-level 9, secondary pressure governor 10, secondary 11, outlet ball valve 12 and gas outlet 13 through pipeline; Wherein one-level pressure governor pipeline is the A pipeline and the B pipeline of two parallel connections; The A pipeline comprises the A pipeline ball valve 5 and A pipeline one-level pressure governor 6 that is connected in series, and the B pipeline comprises the B pipeline ball valve 7 and 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 through 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 |
|---|---|---|---|
| CN 201120195431 CN202125727U (en) | 2011-06-10 | 2011-06-10 | Air temperature heat exchange type decompression device for compressed natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120195431 CN202125727U (en) | 2011-06-10 | 2011-06-10 | Air temperature heat exchange type decompression device for compressed natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202125727U true CN202125727U (en) | 2012-01-25 |
Family
ID=45488793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120195431 Expired - Fee Related CN202125727U (en) | 2011-06-10 | 2011-06-10 | Air temperature heat exchange type decompression device for compressed natural gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202125727U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230576A (en) * | 2011-06-10 | 2011-11-02 | 天津华迈燃气装备股份有限公司 | Air-temperature heat exchange type compressed natural gas pressure-relief device |
| CN105402454A (en) * | 2015-08-21 | 2016-03-16 | 中国人民解放军国防科学技术大学 | Gas supply adjustment device based on pressure reducers |
-
2011
- 2011-06-10 CN CN 201120195431 patent/CN202125727U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102230576A (en) * | 2011-06-10 | 2011-11-02 | 天津华迈燃气装备股份有限公司 | Air-temperature heat exchange type compressed natural gas pressure-relief device |
| CN105402454A (en) * | 2015-08-21 | 2016-03-16 | 中国人民解放军国防科学技术大学 | Gas supply adjustment device based on pressure reducers |
| CN105402454B (en) * | 2015-08-21 | 2019-12-13 | 中国人民解放军国防科学技术大学 | Gas supply adjusting device based on pressure reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120125 Termination date: 20160610 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |