CN200968493Y - Double-tube type air feedback metering LNG inflating apparatus - Google Patents
Double-tube type air feedback metering LNG inflating apparatus Download PDFInfo
- Publication number
- CN200968493Y CN200968493Y CN 200620111222 CN200620111222U CN200968493Y CN 200968493 Y CN200968493 Y CN 200968493Y CN 200620111222 CN200620111222 CN 200620111222 CN 200620111222 U CN200620111222 U CN 200620111222U CN 200968493 Y CN200968493 Y CN 200968493Y
- Authority
- CN
- China
- Prior art keywords
- return
- air
- gas
- interface
- feed liquor
- 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
Images
Abstract
A liquefied natural gas dispenser with a two-pipe return-air meter comprises a liquid inlet pipe a, a return-gas pipe b, a shell, a keyboard and a display which are arranged on the shell; the liquid inlet pipe a is connected in series with a stop valve 2, a liquid flow meter 3, an electromagnetic valve 4, a check valve 5 and a pressure sensor 6 sequentially. The utility model is characterized in that the return-air pipe b is connected in series with a return-gas check valve 8 and a return-gas flow meter 7 sequentially; an interface 11 of a gas filling gun is connected on the return-gas pipe between the return-gas check valve 8 and the return-gas flow meter 7; the interface 12 of the return-gas gun is connected on the return-gas pipe between the return-gas flow meter 7 and a return-gas vacuum hose 13; a safety valve 10 is connected between the return-gas pipe b behind the return-gas check valve 8 and the liquid inlet pipe a behind the stop valve 2. The utility model has the advantages of the high measurement accuracy of the gas filling, the simple structure and the easy operation.
Description
One, technical field
The utility model belongs to pack into the equipment of container of liquid gas, particularly is used to fill the machine of LNG Liquefied natural gas.
Two, background technique
LNG Liquefied natural gas (LNG) is a kind of clean fuel for vehicle of having promoted the use of both at home and abroad, needs during use to be filled into the automobile-used LNG liquid container from gas station LNG basin with the LNG filling machine.On February 9th, 2005 notice of authorization a patent No. is arranged is the liquefied natural gas aerating machine of ZL200420003405.2, but there is following defective in this part prior art: its more complicated structurally at first, three interfaces are arranged between filling machine and gas station, must introduce three pipelines to filling machine from gas station, be unfavorable for the simplification of piping layout; Secondly, though this patented technology has solved the influence that residual boil-off gas measures flowmeter in the pipeline, the cryogenic gas in the automobile-used LNG liquid container process measures and does not directly get back in the LNG of the gas station basin, so its accuracy of measuring is not good enough.
Three, summary of the invention
At the above-mentioned defective that prior art exists, propose a kind of double hose return-air metering of meter liquefied natural gas aerating machine, make the simple in structure of it, aerating accuracy of measuring height.
Technical solution adopted in the utility model is as follows.
A kind of double hose return-air metering liquefied natural gas aerating machine includes liquid inlet pipe, muffler, housing and is installed in keyboard and display device on the housing; Be provided with the feed liquor interface at liquid inlet pipe one end, the other end links to each other with the feed liquor vacuum hose, be connected with stop valve, feed liquor flowmeter, solenoid valve, feed liquor one-way valve and pressure transducer between feed liquor interface and feed liquor vacuum hose successively, feed liquor vacuum hose termination is communicated with air filling gun; Be provided with the return-air interface at muffler one end, the other end links to each other with the return-air vacuum hose, and return-air vacuum hose termination is communicated with the return-air rifle; It is characterized in that: between return-air interface and return-air vacuum hose, be connected with return-air one-way valve and return-air flowmeter successively; Being provided with the air filling gun interface is connected on the muffler between return-air one-way valve and the return-air flowmeter; Being provided with return-air rifle interface is connected on the muffler between return-air flowmeter and the return-air vacuum hose; Between muffler behind the return-air one-way valve and the liquid inlet pipe behind the stop valve, be connected with safety valve.
The utility model double hose return-air metering liquefied natural gas aerating machine is communicated with feed liquor interface and return-air interface respectively when being used for refueling system with the LNG feed liquor interface and the closed butt joint of return-air interface of gas station.
The utility model filling machine is compared with prior art ZL200420003405.2, and major advantage is: 1) accuracy of measuring height.The utility model filling machine has been set up the return-air flowmeter, makes that in the aerating process boil-off gas of getting back to the LNG of gas station basin from automobile-used LNG liquid container is accurately measured, thereby has improved the accuracy of measuring of the actual filling of automobile-used LNG liquid container LNG.With automobile-used LNG liquid container commonly used is example, the nature volume be 300L, boil-off gas temperature for-130 ℃, pressure be 0.3Mpa, according to the result of calculation that the equation of gaseous state formula draws, the gaseous mass of getting back to the LNG of gas station basin in an aerating process is more than 1.2Kg.This shows, because of avoiding user's loss economically in the utility model filling machine accuracy of measuring higher position.2) simple in structure, cost reduces, and is easy to operate.The utility model filling machine is got rid of the Circulation pipe and the relevant pipe fitting thereof of prior art, only needs two pipelines to be connected between filling machine and gas station, has not only simplified piping layout but also reduced cost relatively, has also made things convenient for operation.
Four, description of drawings
Accompanying drawing is the refueling system schematic representation that comprises the utility model double hose return-air metering liquefied natural gas aerating machine structure.
In the drawings, 1-feed liquor interface, 2-stop valve, 3-feed liquor flowmeter, 4-solenoid valve, 5-feed liquor one-way valve, 6-pressure transducer, 7-return-air flowmeter, 8-return-air one-way valve, 9-return-air interface, 10-safety valve, 11-air filling gun interface, 12-return-air rifle interface, 13-return-air vacuum hose, 14-return-air rifle, 15-air filling gun, 16-feed liquor vacuum hose, 17-liquid feed means, 18-LNG basin, a-liquid inlet pipe, b-muffler, A-filling machine, B-gas station.
Five, embodiment
Further specify the concrete structure of the utility model double hose return-air metering liquefied natural gas aerating machine and its working principle below in conjunction with accompanying drawing.
A kind of double hose return-air metering liquefied natural gas aerating machine includes liquid inlet pipe a, muffler b, housing and is installed in keyboard and display device on the housing; Be provided with feed liquor interface 1 at liquid inlet pipe a one end, the other end links to each other with feed liquor vacuum hose 16, be connected with stop valve 2, feed liquor flowmeter 3, solenoid valve 4, feed liquor one-way valve 5 and pressure transducer 6 between feed liquor interface 1 and feed liquor vacuum hose 16 successively, feed liquor vacuum hose 16 terminations are communicated with air filling gun 15; Be provided with return-air interface 9 at muffler b one end, the other end links to each other with return-air vacuum hose 13, and return-air vacuum hose 13 terminations are communicated with return-air rifle 14; It is characterized in that: between return-air interface 9 and return-air vacuum hose 13, be connected with return-air one-way valve 8 and return-air flowmeter 7 successively; Being provided with air filling gun interface 11 is connected on the muffler between return-air one-way valve 8 and the return-air flowmeter 7; Being provided with return-air rifle interface 12 is connected on the muffler between return-air flowmeter 7 and the return-air vacuum hose 13; Between muffler b behind the return-air one-way valve 8 and the liquid inlet pipe a behind the stop valve 2, be connected with safety valve 10.
Its working principle is as follows:
Come out from 18 ends of the LNG basin internal duct that enters filling machine A through liquid feed means 17 and feed liquor interface 1 of LNG; Before aerating, need pipeline is carried out precooling, air filling gun 15 is connected on the air filling gun interface 11, solenoid valve 4 is opened, LNG goes up stop valve 2, feed liquor flowmeter 3, solenoid valve 4, the feed liquor one-way valve 5 of serial connection through liquid inlet pipe a, return-air one-way valve 8 that is connected in series on feed liquor vacuum hose 16, air filling gun 15, air filling gun interface 11, muffler and return-air interface 9 are got back to LNG basin 18 tops at last again; After precooling is finished, return-air rifle 14 is connected to automobile-used LNG liquid container return-air mouth, unnecessary gas in the liquid container is by return-air rifle 14, return-air vacuum hose 13, return-air flowmeter 7, return-air one-way valve 8 and return-air interface 9, get back to LNG basin 18 tops at last, return-air flowmeter 7 is got back to gas flow in the LNG basin 18 with record; Air filling gun 15 is connected to automobile-used LNG liquid container filling opening, to automobile-used LNG liquid container liquid feeding, feed liquor flowmeter 3 is filled into amount of liquid in the automobile-used LNG liquid container with record, and the quantity that the quantity of feed liquor flowmeter 3 records deducts return-air flowmeter 7 records is exactly the accurate quantity of filling machine to automobile filling LNG.
Claims (1)
1, a kind of double hose return-air metering liquefied natural gas aerating machine includes liquid inlet pipe (a), muffler (b), housing and is installed in keyboard and display device on the housing; Be provided with feed liquor interface (1) at liquid inlet pipe (a) end, the other end links to each other with feed liquor vacuum hose (16), be connected with stop valve (2), feed liquor flowmeter (3), solenoid valve (4), feed liquor one-way valve (5) and pressure transducer (6) between feed liquor interface (1) and feed liquor vacuum hose (16) successively, feed liquor vacuum hose (16) termination is communicated with air filling gun (15); Be provided with return-air interface (9) at muffler (b) end, the other end links to each other with return-air vacuum hose (13), and return-air vacuum hose (13) termination is communicated with return-air rifle (14); It is characterized in that: between return-air interface (9) and return-air vacuum hose (13), be connected with return-air one-way valve (8) and return-air flowmeter (7) successively; Being provided with air filling gun interface (11) is connected on the muffler between return-air one-way valve (8) and the return-air flowmeter (7); Being provided with return-air rifle interface (12) is connected on the muffler between return-air flowmeter (7) and the return-air vacuum hose (13); Between muffler (b) behind the return-air one-way valve (8) and the liquid inlet pipe (a) behind the stop valve (2), be connected with safety valve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620111222 CN200968493Y (en) | 2006-08-28 | 2006-08-28 | Double-tube type air feedback metering LNG inflating apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620111222 CN200968493Y (en) | 2006-08-28 | 2006-08-28 | Double-tube type air feedback metering LNG inflating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200968493Y true CN200968493Y (en) | 2007-10-31 |
Family
ID=38968066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620111222 Expired - Fee Related CN200968493Y (en) | 2006-08-28 | 2006-08-28 | Double-tube type air feedback metering LNG inflating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200968493Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103613060A (en) * | 2013-12-16 | 2014-03-05 | 羊宸机械（上海）有限公司 | Vacuum insulation type ultralow temperature medium conveying device used for ships |
| 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 |
| CN106609907A (en) * | 2015-10-24 | 2017-05-03 | 河北斯玛特深冷技术有限公司 | Filling and air return integrated LNG vehicle-mounted gas cylinder |
-
2006
- 2006-08-28 CN CN 200620111222 patent/CN200968493Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN103613060A (en) * | 2013-12-16 | 2014-03-05 | 羊宸机械（上海）有限公司 | Vacuum insulation type ultralow temperature medium conveying device used for ships |
| CN103613060B (en) * | 2013-12-16 | 2016-08-17 | 羊宸机械（上海）有限公司 | Vacuum insulation formula ultralow temperature medium conveyer device peculiar to vessel |
| 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 |
| CN106609907A (en) * | 2015-10-24 | 2017-05-03 | 河北斯玛特深冷技术有限公司 | Filling and air return integrated LNG vehicle-mounted gas cylinder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201992346U (en) | Liquefied natural gas injection machine | |
| CN201162936Y (en) | Liquefied natural gas feeder | |
| CN200968493Y (en) | Double-tube type air feedback metering LNG inflating apparatus | |
| CN102182916A (en) | Liquefied natural gas filling machine | |
| CN101058400B (en) | Liquefied natural gas aerating machine and aerating method | |
| CN201269813Y (en) | Synthetic detection instrument for oil gas recovery | |
| CN204756429U (en) | LNG metering device that unloads | |
| CN200949748Y (en) | Single tube filling measuring liquefied natural gas supplying device | |
| CN201093164Y (en) | Natural gas liquid gas-filling machine | |
| CN2677729Y (en) | Machine for filling liquified natural gas | |
| CN109867255A (en) | A kind of fuel charger that can distinguish gasoline model | |
| CN202083444U (en) | High-low flow integrated CNG on-site verification system | |
| CN104865043B (en) | A kind of LNG cold flow characteristics experimental provision | |
| CN204829278U (en) | Liquefied natural gas of two measurements of single current volume adds mechanism of qi | |
| CN2905757Y (en) | Liquefied petroleum gas supplying device | |
| CN207738444U (en) | A kind of fuel charger that can distinguish gasoline model | |
| CN105020579A (en) | Single-flow double-metering liquefied natural gas filling machine | |
| CN110857678A (en) | Mobile dispensing station with auxiliary conveyor system | |
| CN202469480U (en) | Liquefied natural gas filling gas machine | |
| CN203323804U (en) | Vehicle fuel oil adding amount measurement device | |
| CN201826997U (en) | Pump and liquid level meter integration device in methanol fuel tank | |
| CN202546274U (en) | Liquefied natural gas filling machine verification device | |
| CN203322723U (en) | LNG (liquefied natural gas) single-pneumatic-valve liquid adding machine | |
| CN208951669U (en) | A kind of double metering dispensers based on single current gauge | |
| CN218671642U (en) | Closed displacement device for two-phase metering |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHONGQING SILIAN OIL GAS EQUIPMENT MANUFACTURING C Free format text: FORMER NAME OR ADDRESS: CHONGQING SILIAN REFUELING MACHINE CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: No. 6, Willow Road, Mount Huangshan Avenue, North New District, Chongqing: 401121 Patentee after: Chongqing Silian Oil & Gas Equipment Manufacturing Co., Ltd. Address before: Jiangbei District, village of Chongqing City, No. 49, zip code: 400020 Patentee before: Chongqing Silian Fuel Filling Machine Manufacturing Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: CHONGQING ENDURANCE ENERGY EQUIPMENT INTEGRATION C Free format text: FORMER NAME: CHONGQING SILIAN OIL + GAS EQUIPMENT MANUFACTURING CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 401121 No. 6, Willow Road, Mount Huangshan Avenue, North New District, Chongqing Patentee after: Chongqing Endurance Industry Stock Co., Ltd. Address before: 401121 No. 6, Willow Road, Mount Huangshan Avenue, North New District, Chongqing Patentee before: Chongqing Silian Oil & Gas Equipment Manufacturing Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071031 Termination date: 20140828 |
|
| EXPY | Termination of patent right or utility model |