CN201992346U - Liquefied natural gas injection machine - Google Patents
Liquefied natural gas injection machine Download PDFInfo
- Publication number
- CN201992346U CN201992346U CN2011200362076U CN201120036207U CN201992346U CN 201992346 U CN201992346 U CN 201992346U CN 2011200362076 U CN2011200362076 U CN 2011200362076U CN 201120036207 U CN201120036207 U CN 201120036207U CN 201992346 U CN201992346 U CN 201992346U
- Authority
- CN
- China
- Prior art keywords
- return
- air
- pipeline
- housing
- control valve
- 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.)
- Expired - Fee Related
Links
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses a liquefied natural gas injection machine, which comprises a housing, a pipeline assembly, a control assembly and an injection operation assembly, the pipeline assembly and the control assembly are arranged in the housing, the injection operation assembly is arranged on the housing, the pipeline assembly comprises a gas injection pipeline, a return gas pipeline, a precooling pipeline and a gas injection nozzle return pipeline, and a pressure relief pipeline controlled by a check valve is arranged between the liquid outlet end of a liquid injection control valve and a return gas connector. A return gas flowmeter is arranged in the return gas pipeline. The liquid injection control valve and a precooling control valve are electromagnetic pneumatic valves. The liquefied natural gas injection machine has the advantages of high metering precision and high safety.
Description
Technical field
The utility model relates to a kind of LNG Liquefied natural gas filling device.
Background technique
LNG Liquefied natural gas is called for short LNG Liquefied natural gas.Present LNG Liquefied natural gas filling device does not use the return-air flowmeter, returns large-mindedly in the filling process when vehicle-mounted bottle pressure is high, because the return-air amount can't measure, actual adding amount is few with regard to the numerical value that shows on the ratio panels, can't reach metering accurately.And after filling device stopped filling, air filling gun and the pipeline that adds between the hydraulic control valve can have a certain amount of LNG Liquefied natural gas, if the time long do not annotate, under the LNG Liquefied natural gas normal temperature very easily gasification cause manifold pressure to raise, make pipeline have potential safety hazard.
The model utility content
Technical problem to be solved in the utility model is: the LNG Liquefied natural gas filling device that a kind of measuring accuracy height, high safety are provided.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: the LNG Liquefied natural gas filling device, comprise: housing, be arranged on pipeline assembly and control unit in the housing, be arranged on the filling operating component on the housing, pipeline assembly comprises: by the feed liquor interface that is arranged on the housing, the liquid feeding flowmeter, add hydraulic control valve, pressure transmitter, pressure gauge, the aerating flexible pipe, the aerating pipeline that air filling gun is composed in series, by the return-air rifle, the return-air flexible pipe, safety check, be arranged on the return line that the return-air interface on the housing is composed in series successively, be arranged on the precooling pipeline between outlet of liquid feeding flowmeter and the return-air interface by pre-subcooling control valve control, and being arranged on air filling gun return line between air filling gun refluxing opening on the housing and the return-air interface by safety check control, described adding, be provided with a pressure relief pipe of being controlled by safety check between hydraulic control valve outlet end and return-air interface.Be provided with the return-air flowmeter in the described return line.
The utility model has the advantages that: be provided with a pressure relief pipe between hydraulic control valve outlet end and return-air interface by safety check control owing to add; after liquid feeding finishes; air filling gun and add the liquefied natural gas gasifying that the pipeline between the hydraulic control valve has; pipeline pressure will raise; at this moment gas can flow to the return-air interface by safety check through relief pipeline; finally get back to liquefied natural gas (LNG) tank, the liquid feeding pipeline is played a very good protection, improved the safety in utilization of LNG Liquefied natural gas filling device.
Owing on muffler, install back the throughput meter, when in the filling process during vehicle-mounted bottle return-air, the return-air flowmeter can measure, and assembly can go out actual liquid volume added according to the data computation of liquid feeding flowmeter and return-air flowmeter, make metering more accurate, the user's of the liquid feeding of having guaranteed to come interests.
Description of drawings
Fig. 1 is a schematic diagram of the present utility model.
Among the figure: 1. housing, 2. the feed liquor interface, 3. the liquid feeding flowmeter, 4. add hydraulic control valve, 5. pressure transmitter, 6. pressure gauge, 7. aerating flexible pipe, 8. air filling gun, 9. return-air rifle, 10. return-air flexible pipe, 11. safety check, 12. return-air interfaces, 13. air filling gun refluxing openings, 14. pre-subcooling control valves, 15. return-air flowmeters.
Embodiment
Describe particular content of the present utility model in detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, the LNG Liquefied natural gas filling device, comprise: housing 1, be arranged on pipeline assembly and control unit in the housing 1, be arranged on the filling operating component on the housing 1, pipeline assembly comprises: by the feed liquor interface 2 that is arranged on the housing 1, liquid feeding flowmeter 3, add hydraulic control valve 4, pressure transmitter 5, pressure gauge 6, aerating flexible pipe 7, the aerating pipeline that air filling gun 8 is composed in series, by return-air rifle 9, return-air flexible pipe 10, safety check 11, be arranged on the return line that the return-air interface 12 on the housing 1 is composed in series successively, be arranged on the precooling pipeline that liquid feeding flowmeter 3 outlet conduits and return-air interface 12 pipeline enclosures insert by threeway by pre-subcooling control valve 14 controls, connect safety check 11 and be connected to the air filling gun return line that constitutes on the pipeline at pre-subcooling control valve 14 feed liquor places by threeway then by being arranged on air filling gun refluxing opening 13 on the housing 1, be arranged on the pressure relief pipe that the pipeline enclosure that adds hydraulic control valve 4 outlet conduits and pre-subcooling control valve 14 outlet ports inserts by threeway by safety check 11 controls.Be provided with return-air flowmeter 15 in the described return line.The described hydraulic control valve 4 that adds is electromagnetism-gas-driving valve with pre-subcooling control valve 14.
During installation, the external port of the feed liquor interface 2 of filling device is connected by the drain pipe of gas station indusion tube with aerating sled piece, and the external port of return-air interface 12 is connected by the refluxing opening of gas station reflow pipe with aerating sled piece.
Before the aerating, open and add hydraulic control valve 4, air filling gun 8 is at first received carried out cryogenic media circulation, the gas in the discharge conduit on the air filling gun refluxing opening 13.During aerating, air filling gun 8 and return-air rifle 9 are inserted the feed liquor interface 2 and the return-air interface 12 of vehicle-mounted bottle respectively, add hydraulic control valve 4 and stay open state, begin to vehicle-mounted bottle filling LNG Liquefied natural gas.Filling is pulled down air filling gun 8 and return-air rifle 9 after finishing, and the tolerance that adds that shows on the display device is that the data that liquid feeding flowmeter 3 reads deduct the data that return-air flowmeter 15 reads.If the liquid feeding time lag is not long, that just only need open pre-subcooling control valve 14, closes to add hydraulic control valve 4, closes pre-subcooling control valve 14 when requiring when liquid feeding flowmeter 3 reaches filling, opens to add hydraulic control valve 4, just can carry out the vehicle-mounted bottle liquid feeding.
Be provided with a pressure relief pipe owing to add hydraulic control valve 4 outlet ends and 12 return-air interfaces by safety check 11 controls; after liquid feeding finishes; air filling gun 8 and add the liquefied natural gas gasifying that the pipeline between the hydraulic control valve 4 has; charging line pressure will raise; at this moment gas can flow to return-air interface 12 by safety check 11 through relief pipeline; finally get back to liquefied natural gas (LNG) tank, the liquid feeding pipeline is played a very good protection, improved the safety in utilization of LNG Liquefied natural gas filling device.
Owing on muffler, install back throughput meter 15, when in the filling process during vehicle-mounted bottle return-air, return-air flowmeter 15 can measure, assembly can go out actual liquid volume added according to the data computation of liquid feeding flowmeter 4 and return-air flowmeter 15, make metering more accurate, the user's of the liquid feeding of having guaranteed to come interests.
Claims (3)
1. LNG Liquefied natural gas filling device, comprise: housing, be arranged on pipeline assembly and control unit in the housing, be arranged on the filling operating component on the housing, pipeline assembly comprises: by the feed liquor interface that is arranged on the housing, the liquid feeding flowmeter, add hydraulic control valve, pressure transmitter, pressure gauge, the aerating flexible pipe, the aerating pipeline that air filling gun is composed in series, by the return-air rifle, the return-air flexible pipe, safety check, be arranged on the return line that the return-air interface on the housing is composed in series successively, be arranged on the precooling pipeline between outlet of liquid feeding flowmeter and the return-air interface by pre-subcooling control valve control, and be arranged on air filling gun return line between air filling gun refluxing opening on the housing and the return-air interface by safety check control, it is characterized in that: described adding, be provided with a pressure relief pipe of being controlled by safety check between hydraulic control valve outlet end and return-air interface.
2. LNG Liquefied natural gas filling device as claimed in claim 1 is characterized in that: be provided with the return-air flowmeter in the described return line.
3. LNG Liquefied natural gas filling device as claimed in claim 1 is characterized in that: the described hydraulic control valve that adds is an electromagnetism-gas-driving valve with pre-subcooling control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200362076U CN201992346U (en) | 2011-02-11 | 2011-02-11 | Liquefied natural gas injection machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200362076U CN201992346U (en) | 2011-02-11 | 2011-02-11 | Liquefied natural gas injection machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201992346U true CN201992346U (en) | 2011-09-28 |
Family
ID=44668836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200362076U Expired - Fee Related CN201992346U (en) | 2011-02-11 | 2011-02-11 | Liquefied natural gas injection machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201992346U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182916A (en) * | 2011-02-11 | 2011-09-14 | 张家港富瑞特种装备股份有限公司 | Liquefied natural gas filling machine |
| CN102401235A (en) * | 2011-11-11 | 2012-04-04 | 何建华 | LNG (Liquefied Natural Gas) dispenser calibrating device |
| CN102410441A (en) * | 2011-11-14 | 2012-04-11 | 成都华气厚普机电设备股份有限公司 | Micro gas dispenser |
| CN103307444A (en) * | 2013-06-20 | 2013-09-18 | 成都华气厚普机电设备股份有限公司 | Liquefied natural gas (LNG) dispenser with high precision of metering |
| CN103470956A (en) * | 2013-09-17 | 2013-12-25 | 成都华气厚普机电设备股份有限公司 | LNG (liquefied natural gas) high-flow-rate gas release column |
| CN104296822A (en) * | 2014-09-29 | 2015-01-21 | 中国科学院电工研究所 | Method and device for measuring liquid level of superconducting power device |
| CN105020579A (en) * | 2015-08-05 | 2015-11-04 | 陕西瑞科特种设备技术有限公司 | Single-flow double-metering liquefied natural gas filling machine |
| CN105605416A (en) * | 2015-12-25 | 2016-05-25 | 江苏现代造船技术有限公司 | Marine liquefied natural gas (LNG) filling machine |
| CN106051453A (en) * | 2016-07-26 | 2016-10-26 | 郑州朗润智能装备股份有限公司 | Splashing preventing device of liquefied natural gas (LNG) filling machine |
| CN108799835A (en) * | 2018-05-19 | 2018-11-13 | 杰瑞石油天然气工程有限公司 | A kind of LNG rush-harvesting and rush-plantings filling machine pipe-line system |
-
2011
- 2011-02-11 CN CN2011200362076U patent/CN201992346U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182916A (en) * | 2011-02-11 | 2011-09-14 | 张家港富瑞特种装备股份有限公司 | Liquefied natural gas filling machine |
| CN102401235A (en) * | 2011-11-11 | 2012-04-04 | 何建华 | LNG (Liquefied Natural Gas) dispenser calibrating device |
| CN102410441A (en) * | 2011-11-14 | 2012-04-11 | 成都华气厚普机电设备股份有限公司 | Micro gas dispenser |
| CN103307444A (en) * | 2013-06-20 | 2013-09-18 | 成都华气厚普机电设备股份有限公司 | Liquefied natural gas (LNG) dispenser with high precision of metering |
| CN103470956B (en) * | 2013-09-17 | 2015-07-15 | 成都华气厚普机电设备股份有限公司 | LNG (liquefied natural gas) high-flow-rate gas release column |
| CN103470956A (en) * | 2013-09-17 | 2013-12-25 | 成都华气厚普机电设备股份有限公司 | LNG (liquefied natural gas) high-flow-rate gas release column |
| CN104296822A (en) * | 2014-09-29 | 2015-01-21 | 中国科学院电工研究所 | Method and device for measuring liquid level of superconducting power device |
| CN105020579A (en) * | 2015-08-05 | 2015-11-04 | 陕西瑞科特种设备技术有限公司 | Single-flow double-metering liquefied natural gas filling machine |
| CN105605416A (en) * | 2015-12-25 | 2016-05-25 | 江苏现代造船技术有限公司 | Marine liquefied natural gas (LNG) filling machine |
| CN105605416B (en) * | 2015-12-25 | 2018-07-24 | 江苏现代造船技术有限公司 | A kind of LNG charging machines peculiar to vessel |
| CN106051453A (en) * | 2016-07-26 | 2016-10-26 | 郑州朗润智能装备股份有限公司 | Splashing preventing device of liquefied natural gas (LNG) filling machine |
| CN106051453B (en) * | 2016-07-26 | 2019-04-26 | 郑州朗润智能装备股份有限公司 | A kind of liquefied natural gas filling machine anti-splash device |
| CN108799835A (en) * | 2018-05-19 | 2018-11-13 | 杰瑞石油天然气工程有限公司 | A kind of LNG rush-harvesting and rush-plantings filling machine pipe-line system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201992346U (en) | Liquefied natural gas injection machine | |
| CN102182916A (en) | Liquefied natural gas filling machine | |
| CN202561440U (en) | Control device for liquid nitrogen transport system | |
| CN103307444A (en) | Liquefied natural gas (LNG) dispenser with high precision of metering | |
| CN101915664B (en) | Digital full functional water nozzle test system | |
| CN105020577A (en) | LNG unloading method capable of achieving accurate measurement and LNG unloading measurement device | |
| CN204756429U (en) | LNG metering device that unloads | |
| CN203052194U (en) | Prying and filling device for LNG (Liquefied Natural Gas) gas station | |
| CN103852125A (en) | Positive displacement type small-flow gas metering device | |
| CN202767168U (en) | Multistage long-distance booster pump station | |
| CN204829260U (en) | LNG that can accurately measure adds mechanism of qi | |
| CN206221985U (en) | A kind of liquefied natural gas gasifying pressure regulation metering system | |
| CN105020579A (en) | Single-flow double-metering liquefied natural gas filling machine | |
| CN202083444U (en) | High-low flow integrated CNG on-site verification system | |
| CN104864261A (en) | LNG filling measurement method with functions of self-pre-cooling and low temperature maintaining, and apparatus | |
| CN200968493Y (en) | Double-tube type air feedback metering LNG inflating apparatus | |
| CN101761773B (en) | Liquefied natural gas dispenser | |
| CN206592778U (en) | A kind of high-precision two-wire LNG filling metering device | |
| CN203615081U (en) | Pipeline pressure test device | |
| CN204829278U (en) | Liquefied natural gas of two measurements of single current volume adds mechanism of qi | |
| CN203208924U (en) | High-pressure water distribution mother liquor metering and mixing device | |
| CN108799835A (en) | A kind of LNG rush-harvesting and rush-plantings filling machine pipe-line system | |
| CN2905757Y (en) | Liquefied petroleum gas supplying device | |
| CN210291425U (en) | Material conveying system capable of accurately metering | |
| CN204007805U (en) | The online caliberating device of a kind of LNG filling machine |
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: 20110928 Termination date: 20200211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |