CN2677729Y - Machine for filling liquified natural gas - Google Patents
Machine for filling liquified natural gas Download PDFInfo
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- CN2677729Y CN2677729Y CN 200420003405 CN200420003405U CN2677729Y CN 2677729 Y CN2677729 Y CN 2677729Y CN 200420003405 CN200420003405 CN 200420003405 CN 200420003405 U CN200420003405 U CN 200420003405U CN 2677729 Y CN2677729 Y CN 2677729Y
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Abstract
The utility model belongs to the technique of automobile-gas filling-up, relating to the improvements of the liquefied natural gas filling-up machine for automobile, and comprising a pipe-line system, a crust, a keyboard and a display. A liquid ingress interface of gas filling-up machine 22 is connected in series with an effusion meter 16, an electromagnetic valve 14, a one-way check valve 13, a pressure sensor 9 and a metal pipe 10; through a tee, the effusion meter 16 and the electromagnetic valve 14 are connected with an electromagnetic valve 15 and the inner port of a circulation interface 23. The utility model is characterized in that: the crust is provided with a circulation interface of air filling-up gun 21 which is connected with the electromagnetic valve 15 and the circulation interface 23 through a tee; the crust is provided with an interface of air-return gun 25 which is connected with an air-return gun 20 and is connected with an air-return interface 24 through the pipe-line. The utility model is provided with high measuring accuracy and low cost.
Description
Technical field
The utility model belongs to the automobile fuel gas loading technique, relates to the improvement to automobile liquefied natural gas filling machine.
Background technique
LNG Liquefied natural gas is called for short LNG, is a kind of clean automobile fuel.U.S. Pat 5582218 cryogenic liquide fuel reservoir loading techniques (DISPENSING SYSTEM FOR REFUELING TRANSPORTCONTAINERS WITH CRYOGENIC LIQUIDS) have been introduced a kind of loading system of cryogenic media, can be used for liquefied natural gas aerating machine, its theory structure is seen Fig. 1.3 is LNG station system structural representations among the figure, is made up of LNG basin 2, gas station liquid feed means 18.LNG basin 2 is connected by the input end of pipeline with gas station liquid feed means 18, and the output terminal of gas station liquid feed means 18 is connected with the external port of the feed liquor interface 22 of filling machine by gas station indusion tube 17.One end of Circulation pipe 4 is connected with the external port of the circulation interface 23 of filling machine, and its other end puts in the LNG basin 2.One end of muffler 5 is connected with the external port of the return-air interface 24 of filling machine, and its other end puts in the LNG basin 2 and is connected with dissipation device 1.6 is filling machine schematic representation among Fig. 1, and it comprises pipe-line system, housing and is installed in keyboard and display device on the housing.A feed liquor interface 22, circulation interface 23 and return-air interface 24 are arranged on filling machine, metal tube 10 is arranged on housing, this metal tube 10 is connected with air filling gun 12 by metallic hose 11.Flowmeter 16, solenoid valve 14, unidirectional stop valve 13 and pressure transducer 9 successively are being connected in series between feed liquor interface 22 and metal tube 10.Be communicated with an end of solenoid valve 15 by a threeway between flowmeter 16 and the solenoid valve 14, the other end of solenoid valve 15 is communicated with the inner port of circulation interface 23.The connecting end of unidirectional stop valve 13 and pressure transducer 9 is by threeway connection of connecting with the input port of solenoid valve 8 and flowmeter 7, and the output port of flowmeter 7 is communicated with by the inner port of pipeline with return-air interface 24.The working principle of this filling machine is: when filling machine is given automobile liquid container liquid feeding, at first air filling gun 12 is connected on the automobile liquid container (not drawing among the figure), open solenoid valve 8, close solenoid valve 14, the gaseous substance in the automobile liquid container is entered in the basin 2 by muffler 5.Then, close solenoid valve 8 and 15, open solenoid valve 14, beginning when liquid feeding finishes, deducts the numerical value of flowmeter 7 meterings to automobile liquid container liquid feeding with the numerical value of flowmeter 16 meterings, its difference adds the numerical value of automobile liquid container as reality, and according to this as the foundation of clearing.This filling machine has following two shortcomings:
(1) measuring accuracy is not high.When each liquid feeding, as long as open solenoid valve 14, flowmeter 16 promptly begins to measure the flow by itself, when liquid feeding finishes shutdown, will residual LNG liquid in metal tube 10 and the metallic hose 11, and along with the prolongation of time, the pipeline heat absorption makes the LNG gasification.When next aerating, LNG liquid in metal tube 10 and the metallic hose 11 will partly or entirely convert gas to, and like this, what flowmeter measured is liquid, what enter vehicle-mounted bottle is gas or gas-liquid mixture and the starting stage of liquid feeding is actual, can influence the measuring accuracy of filling machine so undoubtedly.And because difference blanking time of filling machine work, metal tube 10 is different with amount of vaporization in the metallic hose 11, and this error can not be deducted by calculating with a fixed amount.
(2) cost height.Two flowmeters are arranged in this filling machine, and one is used for the metering liquid amount, and one is used for measuring gas flow, complex structure.The cost of flowmeter is very high, especially measures the flowmeter of gas, owing to need highi degree of accuracy (China's filling machine measuring accuracy requires 1/%), so generally need tens thousand of yuans one, has improved the complete machine cost of whole filling machine greatly.
Summary of the invention
The purpose of this utility model is: a kind of measuring accuracy height, simple in structure, LNG filling machine that cost is low are provided.
The technical solution of the utility model is: liquefied natural gas aerating machine comprises pipe-line system, housing and is installed in keyboard and display device on the housing; Feed liquor interface 22 of filling machine, circulation interface 23 and return-air interface 24, metal tube 10 is arranged on housing, this metal tube 10 is connected with air filling gun 12 by metallic hose 11, and flowmeter 16, solenoid valve 14, unidirectional stop valve 13 and pressure transducer 9 successively are being connected in series between feed liquor interface 22 and metal tube 10; Be communicated with an end of solenoid valve 15 by a threeway between flowmeter 16 and the solenoid valve 14, the other end of solenoid valve 15 is communicated with circulation interface 23 and air filling gun circulation interface 21, it is characterized in that, an air filling gun circulation interface 21 is arranged on housing, and its inner port is communicated with solenoid valve 15 and circulation interface 23 by pipeline and a threeway; A return-air rifle interface 25 is arranged on housing, and 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 utility model has the advantages that:
The first, measuring accuracy height.The utility model has increased air filling gun circulation interface 21, before the aerating, air filling gun 12 is at first received and is carried out the cryogenic media circulation on the air filling gun circulation interface 21, get rid of the boil-off gas in the pipeline, then air filling gun 12 is inserted automobile feed liquor interfaces (not drawing among the figure) rapidly and begin, avoided the influence of boil-off gas residual in the pipeline like this gas filling accuracy to automobile liquid container filling LNG.
The second, the utility model greatly reduces the complete machine cost.Owing to reduced the flowmeter of a costliness, reduced tens thousand of first costs.Increased return-air metallic hose 19 and return-air rifle 20 for solving the return-air problem, the expense that increases these two members is no more than 2,000 yuan.
Though the utility model is not deducted the residual gas in the automobile liquid container when aerating, but the because when volume after the LNG gasification is liquid state under the mark attitude 600～620 times, be that the gas that vehicle-mounted bottle is discharged is compared with the liquid that enters, proportion is very little, can ignore to the measuring accuracy influence that adds liquid LNG.
Description of drawings
Fig. 1 is U.S. Pat 5582218 refueling system schematic representation, comprises the schematic representation of gas station 3 and filling machine 6 among the figure.
Fig. 2 is the refueling system schematic representation that comprises the utility model filling machine, comprises the schematic representation of gas station 3 and filling machine 6 among the figure.
Embodiment
Below the utility model is described in further details.Referring to Fig. 2, the utility model liquefied natural gas aerating machine comprises pipe-line system, housing and is installed in keyboard and display device on the housing.Filling machine has a feed liquor interface 22, circulation interface 23 and return-air interface 24, and metal tube 10 is arranged on housing, and this metal tube 10 is connected with air filling gun 12 by metallic hose 11.Flowmeter 16, solenoid valve 14, unidirectional stop valve 13 and pressure transducer 9 successively are being connected in series between feed liquor interface 22 and metal tube 10.Be communicated with an end of solenoid valve 15 by a threeway between flowmeter 16 and the solenoid valve 14, the other end of solenoid valve 15 is communicated with the inner port of circulation interface 23.Above structure is identical with U.S. Pat 5582218 filling machines.Equally, in use, the external port of the feed liquor interface 22 of filling machine is connected by the output terminal of gas station indusion tube 17 with gas station liquid feed means 18; The external port of circulation interface 23 is connected with the end that Circulation pipe 4 is positioned at LNG basin 2 outsides; The external port of return-air interface 24 is connected with the end that muffler 5 is positioned at LNG basin 2 outsides.Improvement of the present utility model is, first, increased an air filling gun circulation interface 21, and its inner port is communicated with solenoid valve 15 and circulation interface 23 by pipeline and a threeway.The second, increased a return-air rifle interface 25, 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.Flowmeter 7 and solenoid valve 8 in the U. S. Patent technology have been cancelled simultaneously.Working principle of the present utility model is: when filling machine is given automobile liquid container liquid feeding, the first step, return-air rifle 20 is received on the return-air mouth of automobile liquid container (not drawing among the figure), discharged the high-pressure evaporation gas in the automobile liquid container, its pressure is dropped to or near atmospheric pressure.Second goes on foot, and air filling gun 12 is received carried out the cryogenic media circulation on the air filling gun circulation port 21, gets 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 automobile liquid container feed liquor interface, open air filling gun, begin to automobile liquid container filling LNG, filling machine is pulled down air filling gun 12 after finishing filling, settles accounts with the numerical value of flowmeter 16 meterings.
Claims (1)
1, liquefied natural gas aerating machine comprises pipe-line system, housing and is installed in keyboard and display device on the housing; A feed liquor interface [22], circulation interface [23] and return-air interface [24] are arranged on the filling machine, on housing, also has metal tube [10], this metal tube [10] is connected with air filling gun [12] by metallic hose [11], and flowmeter [16], solenoid valve [14], unidirectional stop valve [13] and pressure transducer [9] successively are being connected in series between feed liquor interface [22] and metal tube [10]; Be communicated with an end of solenoid valve [15] by a threeway between flowmeter [16] and the solenoid valve [14], the other end of solenoid valve [15] is communicated with circulation interface [23] and air filling gun circulation interface 21, it is characterized in that, an air filling gun circulation interface [21] is arranged on housing, and its inner port is communicated with solenoid valve [15] and circulation interface [23] by pipeline and a threeway; A return-air rifle interface [25] is arranged on housing, and 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420003405 CN2677729Y (en) | 2004-02-09 | 2004-02-09 | Machine for filling liquified natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420003405 CN2677729Y (en) | 2004-02-09 | 2004-02-09 | Machine for filling liquified natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2677729Y true CN2677729Y (en) | 2005-02-09 |
Family
ID=34582547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420003405 Expired - Lifetime CN2677729Y (en) | 2004-02-09 | 2004-02-09 | Machine for filling liquified natural gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2677729Y (en) |
Cited By (7)
| 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 |
| 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 |
| 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 |
| CN102295260A (en) * | 2011-09-03 | 2011-12-28 | 侯振岐 | Vehicle-mounted high-precision fluid metering device and metering management system |
| CN102338281A (en) * | 2010-07-23 | 2012-02-01 | 马佳囡 | Liquefied natural gas storing and transporting system |
| 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 |
| CN103470947A (en) * | 2013-09-11 | 2013-12-25 | 江苏永钢集团有限公司 | Automatic filling device of liquid tank car |
-
2004
- 2004-02-09 CN CN 200420003405 patent/CN2677729Y/en not_active Expired - Lifetime
Cited By (8)
| 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 |
| CN102338281A (en) * | 2010-07-23 | 2012-02-01 | 马佳囡 | Liquefied natural gas storing and transporting system |
| 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 |
| CN102295260A (en) * | 2011-09-03 | 2011-12-28 | 侯振岐 | Vehicle-mounted high-precision fluid metering device and metering management system |
| CN102295260B (en) * | 2011-09-03 | 2012-11-28 | 侯振岐 | Vehicle-mounted high-precision fluid metering device and metering management system |
| 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 |
| CN103470947A (en) * | 2013-09-11 | 2013-12-25 | 江苏永钢集团有限公司 | Automatic filling device of liquid tank car |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140209 Granted publication date: 20050209 |
|
| CX01 | Expiry of patent term |