CN203431497U - BOG utilization system for liquefied natural gas refilling station - Google Patents
BOG utilization system for liquefied natural gas refilling station Download PDFInfo
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- CN203431497U CN203431497U CN201320535341.XU CN201320535341U CN203431497U CN 203431497 U CN203431497 U CN 203431497U CN 201320535341 U CN201320535341 U CN 201320535341U CN 203431497 U CN203431497 U CN 203431497U
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- bog
- natural gas
- valve
- liquefied natural
- temperature
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Abstract
The utility model provides a BOG utilization system for a liquefied natural gas refilling station. A low-temperature emergency cut-off valve, a BOG carburetor, a low-temperature stop valve, a pressure reducing valve, a pressure gauge, a thermometer, a temperature transmitter and a natural gas compressor are sequentially connected at an inlet of a main pipeline. The low-temperature stop valve is in parallel connection with a recuperator. The pressure reducing valve is in parallel connection with a bypass stop valve. The BOG utilization system further comprises a combustible gas alarm. The BOG utilization system for the liquefied natural gas refilling station has the advantages that BOG is heated and pressurized into CNG, as a result, energy resources are saved, and economic benefit is brought to a user; moreover, the area occupied by a device is small, cost is low, and therefore large-scale popularization is facilitated.
Description
Technical field
The utility model belongs to integrated liquefied natural gas filling station equipment, particularly a kind of liquefied natural gas filling station BOG(flashed vapour) gas compression becomes CNG(compressed natural gas) waste gas reuse system.
Background technique
Rock gas is the emerging energy of clean and effective, producing and using has tremendous development in China, and with the obvious advantage because of it, LNG (LNG Liquefied natural gas) automobile is widely used at present, LNG automobile filling station large size is built, yet this type of filling station system can produce a large amount of BOG gas.BOG gas refers to the gas forming by after liquid natural gas gasification, and BOG is mainly derived from the gasification naturally of every day approximately 0.3% in LNG tank car return-air and LNG storage tank.If this part residual air cannot be utilized finally and can only discharge sky, cause the wasting of resources, how fully the recycling of BOG gas becomes the current problem that faces solution.
Summary of the invention
Problem to be solved in the utility model is to provide a kind of liquefied natural gas filling station equipment, is especially applicable to the waste gas reuse system that liquefied natural gas filling station BOG gas compression becomes CNG.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: liquefied natural gas filling station BOG gas utilizes system, from the ingress of main pipeline, be connected with low temperature Emergeny Cutoff Valves, BOG heat booster, cryogenic globe valve, reduction valve, pressure gauge, thermometer, temperature transmitter and natural gas compressor in turn, described cryogenic globe valve is parallel with a recuperator, described reduction valve is parallel with a bypass stop valve, also comprises a flammable gas alarm.
Further, described BOG heat booster is air temperature type BOG heat booster.
Further, described recuperator is electrothermal water bath type recuperator.
Further, the import of described electrothermal water bath type recuperator and outlet are respectively provided with a valve.
Further, the two ends of described reduction valve are respectively provided with a valve.
Further, described pressure gauge is provided with a valve on the pipeline being connected with main pipeline.
Further, described natural gas compressor is integrated form, comprises filtration, compression, blowdown, diffuses and temperature and pressure control system.
Advantage and the good effect that the utlity model has are: owing to adopting technique scheme,
1, energy saving, makes the energy be recycled recycling.
2, this device technique simple, be applicable to gas station construction, floor space is little, cost is low.
3, in device, pressure, temperature and flammable gas alarm etc. carry out automation control, guarantee safety in utilization.
4, the employing stainless steel that originally installs pipes is furnished with electrothermal water bath type recuperator simultaneously, is applicable to northern area use in winter.
5, equipment adopts integrated form product, is convenient to detachable maintaining, has guaranteed the Security of whole system.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present embodiment
In figure:
1, low temperature Emergeny Cutoff Valves 2, air temperature type BOG heat booster 3, cryogenic globe valve
4, valve 5, bypass cutoff valve 6, pressure gauge
7, thermometer 8, temperature transmitter 9, natural gas compressor
10, flammable gas alarm 11, reduction valve 12, water-bath type recuperator
13, flange
Embodiment
As shown in Figure 1, the utility model liquefied natural gas filling station BOG gas utilizes system, from the ingress of main pipeline, be connected with low temperature Emergeny Cutoff Valves 1, BOG heat booster, cryogenic globe valve 3, reduction valve 11, pressure gauge 6, thermometer 7, temperature transmitter 8 and natural gas compressor 9 in turn, cryogenic globe valve 3 is parallel with a recuperator, reduction valve 11 is parallel with a bypass stop valve 5, also comprises a flammable gas alarm 10.BOG heat booster is preferably air temperature type BOG heat booster 2.Recuperator is preferably electrothermal water bath type recuperator 12, and import and outlet are respectively provided with a valve 4.The two ends of reduction valve 11 are respectively provided with a valve 4.Pressure gauge 6 is provided with a valve 4 on the pipeline being connected with main pipeline.Natural gas compressor 9 is integrated form, comprises filtration, compression, blowdown, diffuses and temperature and pressure control system.Air temperature type BOG heat booster 2 two ends are flexibly connected with main pipeline by flange 13, are convenient to dismounting and repair and replacement.The bypass cutoff valve 5 in parallel with reduction valve 11 can cut out the rear dismounting maintenance of valve 4 at reduction valve 11 two ends when reduction valve 11 breaks down, and makes gas pass through main pipeline from bypass cutoff valve 3, do not affect the use of complete equipment.
The working procedure of this example: BOG gas enters air temperature type BOG heat booster 2 by main pipeline entrance, if the gas after heating does not reach temperature requirement, cryogenic globe valve 3 is closed, BOG gas enters electrothermal water bath type recuperator 12, according to water temperature and the start and stop of water level signal automatic control electrical heating rod, make water temperature and water level keep constant.BOG gas continues by reduction valve 11, pressure gauge 6, thermometer 7, temperature transmitter, enter natural gas compressor 9, because natural gas compressor 9 is integrated form, can realize filtration, compression, blowdown, diffuse with temperature and pressure and control, generate compressed natural gas, thereby realized to greatest extent the recycling of BOG gas, saved the energy.In system, pressure, temperature and flammable gas alarm 10 etc. carry out automation control, guarantee safety in utilization.Native system technique is simple, be applicable to gas station construction, and floor space is little, and cost is low.Pipeline adopts stainless steel, is furnished with electrothermal water bath type recuperator 12 simultaneously, is applicable to northern area use in winter.Equipment adopts integrated form product, is convenient to detachable maintaining, has guaranteed the Security of whole system.
Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variations of doing according to the utility model application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (7)
1. a liquefied natural gas filling station BOG gas utilizes system, it is characterized in that: from the ingress of main pipeline, be connected with low temperature Emergeny Cutoff Valves, BOG heat booster, cryogenic globe valve, reduction valve, pressure gauge, thermometer, temperature transmitter and natural gas compressor in turn, described cryogenic globe valve is parallel with a recuperator, described reduction valve is parallel with a bypass stop valve, also comprises a flammable gas alarm.
2. liquefied natural gas filling according to claim 1 station BOG gas utilizes system, it is characterized in that: described BOG heat booster is air temperature type BOG heat booster.
3. liquefied natural gas filling according to claim 1 station BOG gas utilizes system, it is characterized in that: described recuperator is electrothermal water bath type recuperator.
4. liquefied natural gas filling according to claim 3 station BOG gas utilizes system, it is characterized in that: the import of described electrothermal water bath type recuperator and outlet are respectively provided with a valve.
5. liquefied natural gas filling according to claim 1 station BOG gas utilizes system, it is characterized in that: the two ends of described reduction valve are respectively provided with a valve.
6. liquefied natural gas filling according to claim 1 station BOG gas utilizes system, it is characterized in that: described pressure gauge is provided with a valve on the pipeline being connected with main pipeline.
7. liquefied natural gas filling according to claim 1 station BOG gas utilizes system, it is characterized in that: described natural gas compressor is integrated form, comprises filtration, compression, blowdown, diffuses and temperature and pressure control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320535341.XU CN203431497U (en) | 2013-08-28 | 2013-08-28 | BOG utilization system for liquefied natural gas refilling station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320535341.XU CN203431497U (en) | 2013-08-28 | 2013-08-28 | BOG utilization system for liquefied natural gas refilling station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203431497U true CN203431497U (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320535341.XU Expired - Fee Related CN203431497U (en) | 2013-08-28 | 2013-08-28 | BOG utilization system for liquefied natural gas refilling station |
Country Status (1)
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| CN (1) | CN203431497U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529731A (en) * | 2019-09-03 | 2019-12-03 | 江苏鼎程新能源科技有限公司 | A kind of Intelligent skid-mounted liquefied natural gas tank car BOG recyclable device |
-
2013
- 2013-08-28 CN CN201320535341.XU patent/CN203431497U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529731A (en) * | 2019-09-03 | 2019-12-03 | 江苏鼎程新能源科技有限公司 | A kind of Intelligent skid-mounted liquefied natural gas tank car BOG recyclable device |
| CN110529731B (en) * | 2019-09-03 | 2024-04-19 | 江苏鼎程新能源科技有限公司 | BOG recovery device of intelligent skid-mounted liquefied natural gas tank car |
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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: 20140212 Termination date: 20150828 |
|
| EXPY | Termination of patent right or utility model |