CN2905757Y - Liquefied petroleum gas supplying device - Google Patents
Liquefied petroleum gas supplying device Download PDFInfo
- Publication number
- CN2905757Y CN2905757Y CN 200620022899 CN200620022899U CN2905757Y CN 2905757 Y CN2905757 Y CN 2905757Y CN 200620022899 CN200620022899 CN 200620022899 CN 200620022899 U CN200620022899 U CN 200620022899U CN 2905757 Y CN2905757 Y CN 2905757Y
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- Prior art keywords
- return
- air
- gun
- aerating
- interface
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- 239000003915 liquefied petroleum gas Substances 0.000 title 1
- 239000003949 liquefied natural gas Substances 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims description 31
- 230000006835 compression Effects 0.000 claims description 10
- 238000007906 compression Methods 0.000 claims description 10
- 239000007789 gas Substances 0.000 abstract description 27
- 239000002184 metal Substances 0.000 abstract description 12
- 238000000034 method Methods 0.000 description 9
- 230000035611 feeding Effects 0.000 description 7
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 238000005429 filling process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model provides a novel adding gas machine of liquefied natural gas including a case, a touch screen and a control system positioned on the case, and a plurality of pipes. The plurality of pipes include a return air pipe consisting of a return air inlet, a return air gun port, and a return air gun, all of which are connected through a vacuum metal hose in order; an adding gas pipe comprising an inlet port, a first flow meter, a pneumatic valve, and an adding gas gun, all of which are connected through a vacuum metal hose in order; and a connection pipe consisting of a return air gun seat and an adding gas gun seat connected through a vacuum metal hose in order. The adding gas machine of the utility model has high metering accuracy, fast gassing speed, and simple structure.
Description
Technical field
The utility model relates to the Liquefied Natural Gas fuel loading technique, particularly a kind of improved liquefied natural gas aerating machine.
Background technology
Liquefied natural gas (LNG) constantly obtains in the motor vehicle fuel field promoting as a kind of clean energy resource.Chinese patent No.CN200420003405.2 discloses a kind of liquefied natural gas aerating machine, and its principle is shown in Figure 1A, and LNG station system 3 comprises LNG basin 2 and gas station liquid feed device 18.LNG basin 2 is connected by the input port of vacuum line with gas station liquid feed device 18, the delivery port of gas station liquid feed device 18 is connected with the external port of the inlet 22 of filling machine by vacuum line 17 in the station, one end of circulating pipe 4 is connected with the external port of the circulation interface 23 of filling machine, and its other end is connected in the LNG basin 2.One end of muffler 5 is connected with the external port of filling machine return-air interface 24, and the other end puts in the LNG basin 2 and is connected with dissipation device 1.In addition, filling machine 6 comprises pipeline system, housing and is installed in keyboard and telltale on the housing; A feed liquor interface 22, circulation interface 23 and return-air interface 24 are arranged on filling machine 6, metal tube 10 is arranged on housing, this metal tube 10 is connected with air filling gun 12 by metallic hose 11, and flow counter 16, electromagnetic valve 14, unidirectional stop valve 13 and pressure sensor 9 successively are being connected in series between feed liquor interface 22 and metal tube 10; Be communicated with an end of electromagnetic valve 15 by a threeway between flow counter 16 and the electromagnetic valve 14, the other end of electromagnetic valve 15 is communicated with circulation interface 23 and air filling gun circulation interface 21, wherein air filling gun circulation interface 21 is arranged on the housing, and its inner port is communicated with electromagnetic valve 15 and circulation interface 23 by pipeline and a threeway; Also have a return-air rifle interface 25 on housing, its external port is connected with return-air rifle 20 by metallic hose 19, and the inner port of return-air rifle interface 25 is communicated with return-air interface 24 by pipeline.The scheme drawing of vehicle-mounted bottle 8 has been shown among Figure 1B, and vehicle-mounted bottle 8 has vehicle-mounted bottle feed liquor interface 27 and vehicle-mounted bottle return-air interface 28.
This filling machine is in when filling, and the first step is received return-air rifle 20 on the vehicle-mounted bottle return-air mouth 28, discharges the high-pressure evaporation gas in the vehicle-mounted bottle, its pressure is dropped to or near bar pressure.The second, air filling gun 12 received carry out cryogenic media circulation on the air filling gun circulation port 21, get rid of the boil-off gas in the pipeline.Then, air filling gun 12 is pulled down from air filling gun circulation port 21.The 3rd step, after second step, rapidly air filling gun 12 is inserted on the vehicle-mounted bottle feed liquor interface 27, open air filling gun, begin to vehicle-mounted bottle filling LNG.Filling machine is pulled down air filling gun 12 after finishing filling, settles accounts with the numerical value that flow counter 16 is calculated.
There is following problem in this filling machine:
Measuring accuracy also need improve.When aerating, need return-air rifle 20 is received on the vehicle-mounted bottle return-air mouth 28, discharge the high-pressure evaporation gas in the vehicle-mounted bottle, its pressure is dropped to or near bar pressure.In this process, return-air is not measured, and in the numerical value that last flow counter 16 is calculated, do not deduct.Therefore its measuring accuracy is low, and its measuring accuracy changes along with the variation of the pressure size of boil-off gas in the volume size of vehicle-mounted bottle and the bottle.
In addition, the bicycle aerating time is long.Because return-air rifle 20 will be received on the vehicle-mounted bottle return-air mouth 28 before aerating, the high-pressure evaporation gas in the discharge vehicle-mounted bottle drops to its pressure or near bar pressure, this process spended time is long.Also have in cyclic process and can not in time judge there has not been gas in the pipeline,, need to prolong cycle time therefore in order to ensure full of liquid in the pipeline owing to it.Therefore total filling time of separate unit car is long.
Also have, filling machine has return-air interface 24, circulation interface 23,22 3 interfaces of inlet to be connected with station system, and pipeline is many, is vacuum pipeline owing to what be connected use with gas station, its cost height.The systematic pipeline complexity.And this filling machine is first return-air aerating begins before just, return-air not in filling process, and along with the rising of the interior boil-off gas pressure of vehicle-mounted bottle 8, aerating will stop, so it can't make full use of the storage capacity of vehicle-mounted bottle 8.
The utility model content
Therefore, technical problem to be solved in the utility model is to provide a kind of LNG filling machine, and it has solved one or more problem that exists in the prior art basically.
Comprise housing according to liquefied natural gas aerating machine of the present utility model, be installed in touch-screen and control system and a plurality of pipeline on the housing, wherein, these a plurality of pipelines comprise return line, have successively by vacuum metal flexible pipe bonded assembly return-air mouth, return-air rifle interface and return-air rifle; The aerating pipeline has successively by vacuum metal flexible pipe bonded assembly inlet, first flow meter, pneumatic valve and air filling gun; And connecting line, have by vacuum metal flexible pipe bonded assembly return-air gun platform and aerating gun platform.
Wherein, this return-air rifle is arranged on the return-air gun platform and with it and is communicated with, and air filling gun is arranged on the aerating gun platform and with it and is communicated with.
Above-mentioned return-air mouth, return-air rifle interface, inlet, air filling gun interface, return-air gun platform and aerating gun platform are separately positioned on this housing.
Between return-air mouth and return-air rifle interface, also be connected with boiler check valve and compression indicator in turn on the return line.
Between boiler check valve and compression indicator, also be connected with second flow counter on this return line.
Between compression indicator and return-air rifle interface, also be connected with liquid sensor on this return line.
Filling machine measuring accuracy height of the present utility model, aerating speed are fast, simple in structure.
Filling machine of the present utility model has increased liquid sensor, flow counter in return-air duct.Flow counter is used for return-air is measured, and what liquid sensor was used to guarantee in the liquid feeding process to flow through flow counter is gas, to guarantee the measuring accuracy of flow counter.Under the prerequisite that does not increase circulation line, utilize gas station liquid feed device, gas station hydraulic pipe, inlet, flow counter, pneumatic valve, air filling gun interface, metal vacuum flexible pipe, air filling gun, aerating gun platform, metallic hose, return-air seat, return-air rifle, metallic hose, return-air rifle interface, liquid sensor, compression indicator, flow counter, boiler check valve, return-air mouth, muffler, dissipation device, this loop of LNG basin to form pre-cold loop, be used to get rid of ducted boil-off gas, guaranteed the measuring accuracy of liquid flowmeter.Thereby guaranteed the high measuring accuracy of filling machine.
The plumbing connection of the utility model filling machine is simple, this filling machine is compared with the CN200420003405.2 liquefied natural gas aerating machine, removed circulation interface, simplified flow process, removed the circulating pipe in the gas station from, only needing provides muffler and two pipelines of aerating hydraulic pipe in the station, and pipeline connects simple.Thereby also saved the cost of building a station.
And filling machine aerating speed of the present utility model is fast, can make filling of vehicle-mounted bottle reach the highest permission filling rate during liquid feeding.At first used liquid sensor, the precooling circulation time can in time judge in system, has saved system's precooling cycle time.Secondly, the utility model filling machine uses two-tube filling, at air filling gun in vehicle-mounted bottle filling, boil-off gas in the bottle is returned in the LNG basin via vapor return line by the return-air rifle, be used to reduce the pressure of boil-off gas in the vehicle-mounted bottle, allow to fill liquid level thereby can make the vehicle-mounted bottle liquid filling reach maximum.The liquid feeding return-air carries out simultaneously, has saved the return-air time, has simplified operating process.Technical requirements to vehicle-mounted bottle is low.
Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.
Description of drawings
Appended accompanying drawing is used for further understanding the utility model and the part of book as an illustration, has represented embodiment of the present utility model, explains principle of the present utility model together with the description, wherein
Figure 1A is the scheme drawing of existing liquefied natural gas aerating machine system;
Figure 1B is the scheme drawing of vehicle-mounted bottle;
Fig. 2 is the system schematic of the utility model filling machine.
The specific embodiment
Describe embodiment of the present utility model with reference to the accompanying drawings in detail.
Fig. 2 is the system schematic of the utility model filling machine.LNG station system 3 structures shown in the figure are same as the prior art.Liquefied natural gas aerating machine 106 of the present invention comprises housing, is installed in touch-screen and control system (not shown) and a plurality of pipeline on the housing.Wherein, these a plurality of pipelines comprise return line 100; Aerating pipeline 200; With connecting line 300.Concrete, as shown in Figure 2, return line 100 comprises the part between return-air mouth 124, return-air rifle interface 125 and the return-air rifle 120, aerating pipeline 200 comprises the part between inlet 122, air filling gun interface 110 and the air filling gun 112, and connecting line 300 comprises that return-air gun platform 126 is to the part between the aerating gun platform 129.This inlet 122, return-air mouth 124 can be connected with station system 3 respectively.Return-air gun platform 126, aerating gun platform 129, air filling gun interface 110, return-air rifle interface 125 are separately positioned on the housing.Air filling gun interface 110 is connected with air filling gun 112 by metal vacuum flexible pipe 111.Air filling gun 112 can be placed in the post-11.2 on the aerating gun platform 129 ' locate, and be communicated with aerating gun platform 129, as shown in phantom in FIG..Further, between air filling gun interface 110 and feed liquor interface 122, can be connected in series successively pneumatic valve 114, first flow meter 116.Be connected by metallic hose 130 between return-air gun platform 126 internal orifices and aerating gun platform 129 internal orifices.Return-air rifle interface 125 is connected with return-air rifle 120 by metallic hose 119.Return-air rifle 120 can be placed on the return-air gun platform 126 position 120 ' and locates, and is communicated with return-air gun platform 126, as shown in phantom in FIG..Liquid sensor 131, compression indicator 109, second flow counter 107, boiler check valve 113 successively can be connected in series between return-air rifle interface 125 and return-air interface 124.Second flow counter 107 between return-air rifle interface 125 and return-air interface 124 is used for return-air is measured, to improve the measuring accuracy of filling machine.Liquid sensor 131 is used for carrying out the cryogenic media circulation time at filling machine and in time judges in the pipeline whether be liquid entirely, to reduce cycle time; And in filling process, when being full of, in time sends vehicle-mounted bottle danger signal.
The working process and the principle of liquefied natural gas aerating machine of the present utility model are below described.Filling machine is when readiness for action, and return-air rifle 120 is connected with return-air gun platform 126, and air filling gun 112 is connected with aerating gun platform 129.When filling machine is given automobile mounted bottle of 8 liquid feedings, at first press the precooling button, pneumatic valve 114 is opened, gas station liquid feed device 18, gas station hydraulic pipe 17, inlet 122, first flow meter 116, pneumatic valve 114, air filling gun interface 110, metal vacuum flexible pipe 111, air filling gun 112, aerating gun platform 129, metallic hose 130, return-air seat 126, return-air rifle 120, metallic hose 119, return-air rifle interface 125, liquid sensor 131, compression indicator 109, second flow counter 107, boiler check valve 113, return-air mouth 124, muffler 5, dissipation device 1, LNG basin 2 forms a unidirectional circuit.Liquefied natural gas flows in this loop, and when flow of liquid was through liquid sensor 131 in the pipeline, liquid sensor in time judged and send precooling end signal SELF CL pneumatic valve 114.Then, air filling gun 112 is connected with feed liquor interface 27 on the vehicle-mounted bottle 8, presses the aerating button, pneumatic valve 114 is opened automatically, beginning liquid feeding in vehicle-mounted bottle 8.With return-air rifle 120, be connected, the boil-off gas in the vehicle-mounted bottle 8 is got back in the LNG basin 2 by return-air mouth 28, return-air rifle 120, metallic hose 119, return-air rifle interface 125, liquid sensor 131, compression indicator 109, second flow counter 107, boiler check valve 113, return-air mouth 124, muffler 5, dissipation device 1 subsequently with feed liquor interface 28 on the vehicle-mounted bottle 8.When liquid feeding finishes, pull down return-air rifle 120, air filling gun 112 respectively and be connected with return-air gun platform 126, aerating gun platform 129 respectively.Filling machine deducts the numerical value of second flow counter, 107 meterings as the clearing foundation with the numerical value of first flow meter 116 meterings.What liquid sensor 131 was used to guarantee in the liquid feeding process to flow through second flow counter 107 is gas, to guarantee the measurement of flow counter.
It is to be appreciated that those skilled in the art that under the prerequisite that does not break away from spirit or scope of the present utility model, the utility model also has various improvement and variation.Therefore, various improvement of the present utility model and variation are included in the scope of the present utility model that is limited by appended claims and equivalent thereof.
Claims (6)
1, a kind of liquefied natural gas aerating machine comprises housing, is installed in touch-screen and control system and a plurality of pipeline on the housing, it is characterized in that described a plurality of pipelines comprise
Return line has successively by metallic hose bonded assembly return-air mouth, return-air rifle interface and return-air rifle;
The aerating pipeline has successively by metallic hose bonded assembly inlet, first flow meter, pneumatic valve and air filling gun; With
Connecting line has by metallic hose bonded assembly return-air gun platform and aerating gun platform.
2, liquefied natural gas aerating machine as claimed in claim 1 is characterized in that, described return-air rifle is arranged on the described return-air gun platform and with it and is communicated with, and described air filling gun is arranged on the described aerating gun platform and with it and is communicated with.
3, liquefied natural gas aerating machine as claimed in claim 1 is characterized in that, described return-air mouth, return-air rifle interface, inlet, air filling gun interface, return-air gun platform and aerating gun platform are separately positioned on the described housing.
4, liquefied natural gas aerating machine as claimed in claim 2 is characterized in that, also is connected with boiler check valve and compression indicator in turn on the described return line between return-air mouth and return-air rifle interface.
5, liquefied natural gas aerating machine as claimed in claim 3 is characterized in that, also is connected with second flow counter on the described return line between boiler check valve and compression indicator.
6, liquefied natural gas aerating machine as claimed in claim 4 is characterized in that, also is connected with liquid sensor on the described return line between compression indicator and return-air rifle interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620022899 CN2905757Y (en) | 2006-04-21 | 2006-04-21 | Liquefied petroleum gas supplying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620022899 CN2905757Y (en) | 2006-04-21 | 2006-04-21 | Liquefied petroleum gas supplying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2905757Y true CN2905757Y (en) | 2007-05-30 |
Family
ID=38114390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620022899 Expired - Fee Related CN2905757Y (en) | 2006-04-21 | 2006-04-21 | Liquefied petroleum gas supplying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2905757Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010111888A1 (en) * | 2009-03-31 | 2010-10-07 | Shen Jun | Gas filling machine and gas filling station composed thereof |
| CN102242866A (en) * | 2011-07-01 | 2011-11-16 | 新兴能源装备股份有限公司 | Natural gas filling method for hydraulic natural gas filling substation |
| CN101058400B (en) * | 2006-04-21 | 2011-11-23 | 中国国际海运集装箱(集团)股份有限公司 | Liquefied natural gas aerating machine and aerating method |
-
2006
- 2006-04-21 CN CN 200620022899 patent/CN2905757Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058400B (en) * | 2006-04-21 | 2011-11-23 | 中国国际海运集装箱(集团)股份有限公司 | Liquefied natural gas aerating machine and aerating method |
| WO2010111888A1 (en) * | 2009-03-31 | 2010-10-07 | Shen Jun | Gas filling machine and gas filling station composed thereof |
| CN102242866A (en) * | 2011-07-01 | 2011-11-16 | 新兴能源装备股份有限公司 | Natural gas filling method for hydraulic natural gas filling substation |
| CN102242866B (en) * | 2011-07-01 | 2013-07-24 | 新兴能源装备股份有限公司 | Natural gas filling method for hydraulic natural gas filling substation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070530 Termination date: 20120421 |