CN204328478U - Natural gas sub-station entrance self-heating apparatus - Google Patents
Natural gas sub-station entrance self-heating apparatus Download PDFInfo
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- CN204328478U CN204328478U CN201420673748.3U CN201420673748U CN204328478U CN 204328478 U CN204328478 U CN 204328478U CN 201420673748 U CN201420673748 U CN 201420673748U CN 204328478 U CN204328478 U CN 204328478U
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- compressor
- heat exchanger
- heat
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Abstract
The utility model discloses a kind of natural gas sub-station entrance self-heating apparatus, comprise main road and bypass, described main road comprises heat exchanger, high-voltage regulator and compressor first-stage cylinder, described high-voltage regulator connects heat exchanger heat outlet and suction port of compressor, described compressor outlet connects heat exchanger hot gas inlet by pipeline, described heat exchanger cold air inlet connects gas inlet, and described heat exchanger, high-voltage regulator and compressor form a UTILIZATION OF VESIDUAL HEAT IN pressure-control circuit; Described bypass is provided with pneumatic ball valve, and described pneumatic ball valve connects gas inlet and compressor first-stage cylinder entrance.Net quantity of heat needed for the utility model heat exchange takes from the waste heat of compressor own, and without the need to additional energy source, the equipment that both solved is too low due to temperature and the problem that causes, additionally reduces the heat exchange area of first-class heat exchanger, and flow process is simple, easy for installation.
Description
Technical field
The utility model belongs to storage or the distribution field of gas, especially relates to a kind of natural gas sub-station entrance self-heating apparatus.
Background technique
Along with the extensive application of rock gas, the application of natural gas substation compressor is more and more wider, but due to the special nature of substation, trailer from 20Mp enter the station 3Mp departures, pressure surge is very large, compressor is difficult to adapt to so large fluctuation, so be all equipped with pressure governor by pressure stability in a scope at the entrance of piston compressor, again by compressor compresses, owing to there is pressure drop, temperature also decreases, such as pressure is adjusted to 6Mp temperature by 16Mp and reduces to 34 degree, temperature when ambient temperature is 0 degree after pressure regulation is-34 degree, if especially during winter, ambient temperature-20 is spent, then after pressure regulation, temperature is-54 degree, exceed the dewpoint requirements of rock gas mother station-50 degree, have elutriation go out and cause pressure governor ice to block up, often cause because temperature after pressure regulation is low pressure governor Ou Xingquan to damage in addition, pressure governor is leaked gas, causes danger and waste.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of natural gas sub-station entrance self-heating apparatus, and the gas of gas inlet and compressor compresses gas liberated heat are carried out heat exchange, make rock gas rise to temperature required after again pressure regulation is carried out to it.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: natural gas sub-station entrance self-heating apparatus, comprise main road and bypass, described main road comprises heat exchanger, high-voltage regulator and compressor first-stage cylinder, described high-voltage regulator connects heat exchanger heat outlet and suction port of compressor, described compressor outlet connects heat exchanger hot gas inlet by pipeline, heat exchanger cold air inlet connects gas inlet, the natural gas via heat exchange temperature of gas inlet raises, natural gas via pressure regulator valve pressure regulation after temperature raises, reduce gas pressure wave range, be suitable for compressor operating to need, increase compressor working life, natural gas via compressor compresses after pressure regulation, release heat while natural gas compressing, rock gas after compression and entrance rock gas carry out heat exchange, and after heat exchange, entrance natural gas temperature raises, circulation formation like this UTILIZATION OF VESIDUAL HEAT IN pressure-control circuit, described bypass connects suction port and compressor first-stage cylinder entrance by pneumatic ball valve, directly enters compressor first-stage cylinder through bypass pneumatic ball valve compress for not needing the low pressure natural gas of pressure regulation.
Further, described heat exchanger is shell of pipe type high pressure heat exchanger, and described voltage regulating module is high-voltage regulator.
Further, described compressor is piston compressor.
The advantage that the utility model has and good effect are: the net quantity of heat of heat exchange takes from the tail heat of compressor own, without the need to additional energy source, both the problem that the equipment that solved is too low due to temperature and cause, additionally reduce the heat exchange area of first-class heat exchanger, also reduce the plant maintenance of compressor simultaneously, flow process is simple, easy for installation, takes up an area little.
Accompanying drawing explanation
Fig. 1 is natural gas sub-station entrance self-heating apparatus schematic diagram
In figure:
1-suction port; 2-heat exchanger; 3-high-voltage regulator; 411-compressor first-stage cylinder; 412-compressor secondary cylinder; 421-one-level cooler; 422-secondary coolers; 5-pneumatic ball valve; 6-air outlet.
Embodiment
Below in conjunction with accompanying drawing, specific embodiment of the utility model is elaborated.
As shown in Figure 1, natural gas sub-station entrance self-heating apparatus, the gas that the rock gas of suction port to be heated and compressor first-stage cylinder are discharged is carried out heat exchange to temperature required, carry out pressure regulation again, compression and cooling, comprise heat exchanger 2, high-voltage regulator 3 and compressor first-stage cylinder 411, described heat exchanger 2 is shell of pipe type high pressure heat exchanger, described shell of pipe type high pressure heat exchanger 2, high-voltage regulator 3 and compressor first-stage cylinder 411 form a heat exchange pressure-control circuit, described high-voltage regulator 3 connecting tube shell-type high pressure heat exchanger 2 and compressor first-stage cylinder 411, described heat exchange pressure-control circuit output terminal connects the one-level cooler 421 after compressor first-stage cylinder 411, also comprise a bypass, described bypass connects suction port 1 and compressor first-stage cylinder 411 entrance by pneumatic ball valve 5, and described compressor is piston compressor.
Utility model works principle: if rock gas needs to carry out pressure regulation, then the rock gas of suction port 1 enters shell-and-tube heat exchanger 2 from the cold air intake of shell-and-tube heat exchanger 2, and carry out heat exchange with the gas with heat that compressor first-stage cylinder 411 is discharged, then enter high-voltage regulator 3 and carry out pressure regulation, compressor first-stage cylinder 411 is entered after pressure regulation terminates, after compressor first-stage cylinder 411 is compressed, rock gas carries heat and carries out heat exchange with the cold rock gas entering high-pressure shell-type heat-exchanger 2, then one-level cooler 421 is escaped and enter through high-pressure shell-type heat-exchanger 2 relief opening, then compressor secondary cylinder 412 is entered, then enter secondary coolers 422 to cool, export finally by gas outlet 6.
Above an embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (3)
1. natural gas sub-station entrance self-heating apparatus, it is characterized in that: comprise main road and bypass, described main road comprises heat exchanger, high-voltage regulator and compressor first-stage cylinder, described high-voltage regulator connects heat exchanger heat outlet and suction port of compressor, described compressor outlet connects heat exchanger hot gas inlet by pipeline, described heat exchanger cold air inlet connects gas inlet, and described heat exchanger, high-voltage regulator and compressor form a UTILIZATION OF VESIDUAL HEAT IN pressure-control circuit;
Described bypass is provided with pneumatic ball valve, and described pneumatic ball valve connects gas inlet and compressor first-stage cylinder entrance.
2. natural gas sub-station entrance self-heating apparatus according to claim 1, is characterized in that: described heat exchanger is shell of pipe type high pressure heat exchanger.
3. natural gas sub-station entrance self-heating apparatus according to claim 1 and 2, is characterized in that: described compressor is piston compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420673748.3U CN204328478U (en) | 2014-11-13 | 2014-11-13 | Natural gas sub-station entrance self-heating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420673748.3U CN204328478U (en) | 2014-11-13 | 2014-11-13 | Natural gas sub-station entrance self-heating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204328478U true CN204328478U (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420673748.3U Expired - Fee Related CN204328478U (en) | 2014-11-13 | 2014-11-13 | Natural gas sub-station entrance self-heating apparatus |
Country Status (1)
| Country | Link |
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| CN (1) | CN204328478U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949391A (en) * | 2015-06-17 | 2015-09-30 | 歌思（天津）低温设备有限公司 | Natural gas pressure reducing and heating device |
| CN105465604A (en) * | 2016-01-04 | 2016-04-06 | 陕西铭泽燃气工程有限公司 | Compressed natural gas releasing device and power generation method employing pressure potential |
-
2014
- 2014-11-13 CN CN201420673748.3U patent/CN204328478U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949391A (en) * | 2015-06-17 | 2015-09-30 | 歌思（天津）低温设备有限公司 | Natural gas pressure reducing and heating device |
| CN105465604A (en) * | 2016-01-04 | 2016-04-06 | 陕西铭泽燃气工程有限公司 | Compressed natural gas releasing device and power generation method employing pressure potential |
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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: 20150513 Termination date: 20171113 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |