CN112610884A - Cylinder valve applied to high-pressure hydrogen supply system - Google Patents

Cylinder valve applied to high-pressure hydrogen supply system Download PDF

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Publication number
CN112610884A
CN112610884A CN202011396011.8A CN202011396011A CN112610884A CN 112610884 A CN112610884 A CN 112610884A CN 202011396011 A CN202011396011 A CN 202011396011A CN 112610884 A CN112610884 A CN 112610884A
Authority
CN
China
Prior art keywords
valve
pipeline
cylinder
filter
inlet
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.)
Pending
Application number
CN202011396011.8A
Other languages
Chinese (zh)
Inventor
王飞
郝义国
敖双新
汪江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhan Grove Hydrogen Automobile Co Ltd
Wuhan Grove Hydrogen Energy Automobile Co Ltd
Original Assignee
Wuhan Grove Hydrogen Energy Automobile Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Wuhan Grove Hydrogen Energy Automobile Co Ltd filed Critical Wuhan Grove Hydrogen Energy Automobile Co Ltd
Priority to CN202011396011.8A priority Critical patent/CN112610884A/en
Publication of CN112610884A publication Critical patent/CN112610884A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/04—Arrangement or mounting of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/026—Special adaptations of indicating, measuring, or monitoring equipment having the temperature as the parameter
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
    • H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0332—Safety valves or pressure relief valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0323—Valves
    • F17C2205/0335—Check-valves or non-return valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0341—Filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
    • F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
    • F17C2205/0352—Pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0439—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0184—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention provides a cylinder valve applied to a high-pressure hydrogen supply system, which comprises a first pipeline, a first inlet/outlet, a second inlet/outlet, a third inlet/outlet, a temperature sensor, an overflow valve, a first filter, a second filter, a first manual stop valve, a second manual stop valve, an electromagnetic one-way valve, a bottle body, a cylinder valve main body, a second pipeline, a third pipeline and an fusible plug discharge valve; the invention facilitates the deflation of the hydrogen supply system during daily maintenance and repair, and reduces the use of the tee joint and the pipe fittings when the multi-bottle hydrogen supply system is used.

Description

Cylinder valve applied to high-pressure hydrogen supply system
Technical Field
The invention relates to the technical field of hydrogen energy automobiles, in particular to a cylinder valve applied to a high-pressure hydrogen supply system.
Background
With the improvement of living standard of people, the automobile keeping quantity is gradually increased, and meanwhile, environmental problems are also paid extensive attention, so that the automobile industry is actively promoting revolution and striving to popularize new energy automobiles. Among them, hydrogen fuel cell vehicles are important as new energy vehicles, and they directly convert chemical energy into electric energy to provide power through the reaction of hydrogen and oxygen, and have the advantages of high efficiency and near zero emission, and thus are widely recognized by all countries in the world as having a broad development prospect. The fuel of the fuel cell automobile is hydrogen, the hydrogen needs to be stored on the automobile, and stable hydrogen is supplied according to the actual requirement of the automobile, so that the reliable cylinder valve is very important.
The invention provides a highly integrated cylinder valve applied to a high-pressure hydrogen supply system, which has high integration level and integrates a filter, an electromagnetic one-way valve, a manual stop valve, an overflow valve, a fusible protection device (TPRD) and a temperature sensor. The cylinder valve is convenient for deflation during daily maintenance of the hydrogen supply system, and reduces the use of the tee joint and the pipe fittings when the multi-cylinder hydrogen supply system is used.
Disclosure of Invention
In view of the above, the present invention provides a highly integrated cylinder valve applied to a high pressure hydrogen supply system, which includes a first pipeline, a first inlet/outlet, a second inlet/outlet, a third inlet/outlet, a temperature sensor, an overflow valve, a first filter, a second filter, a first manual stop valve, a second manual stop valve, an electromagnetic check valve, a cylinder body, a cylinder valve body, a second pipeline, a third pipeline, and an fusible plug relief valve;
a first pipeline is arranged at the root part of the cylinder valve main body, namely the joint of the cylinder valve main body and the bottle body; the first pipeline is sequentially provided with a first inlet/outlet, an overflow valve, a second filter, an electromagnetic one-way valve, a first manual stop valve and a first filter;
a second pipeline is arranged at the joint of the cylinder valve main body and the cylinder body, a second manual stop valve is installed on the second pipeline, and a branch of the second pipeline is provided with an fusible plug drain valve;
the first filter is connected with a second inlet/outlet and a third inlet/outlet which are respectively arranged at the left side and the right side of the top of the cylinder valve main body through a third pipeline;
the cylinder valve main body is internally provided with a temperature sensor, and the third pipeline is communicated with the second pipeline.
The technical scheme provided by the invention has the beneficial effects that: the gas release during the convenient hydrogen supply system routine maintenance and maintenance, when simultaneously many bottles of hydrogen supply system use, reduce the use of tee bend and pipe annex.
Drawings
Fig. 1 is a structural view of a cylinder valve applied to a high pressure hydrogen supply system according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, the present invention provides a cylinder valve for a high pressure hydrogen supply system, including a first pipeline 1, a first inlet/outlet 2, a second inlet/outlet 3, a third inlet/outlet 4, a temperature sensor 5, an overflow valve 6, a first filter 7, a second filter 10, a first manual stop valve 8, a second manual stop valve 13, an electromagnetic check valve 9, a bottle 11, a cylinder valve body 14, a second pipeline 15, a third pipeline 16, and a fusible plug drain valve 12;
the root of the cylinder valve main body 14, namely the joint with the bottle body 11, is provided with a first pipeline 1; the first pipeline 1 is sequentially provided with a first inlet/outlet 2, an overflow valve 6, a second filter 10, an electromagnetic one-way valve 9, a first manual stop valve 8 and a first filter 7;
a second pipeline 15 is arranged at the joint of the cylinder valve main body 14 and the cylinder body 11, a second manual stop valve 13 is installed on the second pipeline 15, and a branch of the second pipeline 15 is provided with an fusible plug drain valve 12;
the first filter 7 is connected with a second inlet/outlet 3 and a third inlet/outlet 4 which are respectively arranged at the left side and the right side of the top of the cylinder valve main body 14 through a third pipeline 16;
the cylinder valve main body 14 is internally provided with a temperature sensor 5, and the third pipeline 16 is communicated with the second pipeline 15.
First manual stop valve 8 is the stop valve of open at ordinary times, and the manual stop valve 13 of second is the stop valve of closed at ordinary times.
The first pipeline 1 and the bottle body 11 form an alpha angle, alpha is more than or equal to 10 degrees and less than or equal to 30 degrees, and when the gas cylinder is inflated, airflow is guided to rotate, so that the gas cylinder is prevented from being inflated to form a hot spot.
The filter 10 is a main filter with the precision of 10u and is used for filtering impurities carried by an external air source, the first filter 7 is an auxiliary filter with the filtering precision lower than that of the main filter and is used for filtering the impurities generated in the air bottle.
The rear end of the fusible plug discharge valve 12 adopts a double-flow-passage mode, and when a hydrogen supply system uses a plurality of cylinders, the fusible plug discharge valves 12 of the gas cylinders are directly connected by using pipelines, so that the use of a tee joint is reduced.
The cylinder valve main body 14 adopts gas inlet and outlet channels at two ends, and when a plurality of cylinders are used, the cylinder valves on the gas cylinders are directly communicated through the inlet and the outlet, so that the use of a system tee joint is reduced.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (6)

1. The cylinder valve applied to the high-pressure hydrogen supply system is characterized by comprising a first pipeline (1), a first inlet/outlet (2), a second inlet/outlet (3), a third inlet/outlet (4), a temperature sensor (5), an overflow valve (6), a first filter (7), a second filter (10), a first manual stop valve (8), a second manual stop valve (13), an electromagnetic one-way valve (9), a bottle body (11), a cylinder valve main body (14), a second pipeline (15), a third pipeline (16) and an fusible plug drain valve (12);
a first pipeline (1) is arranged at the root part of the cylinder valve main body (14), namely the joint of the cylinder valve main body and the bottle body (11); the first pipeline (1) is sequentially provided with a first inlet/outlet (2), an overflow valve (6), a second filter (10), an electromagnetic one-way valve (9), a first manual stop valve (8) and a first filter (7);
a second pipeline (15) is arranged at the joint of the cylinder valve main body (14) and the bottle body (11), a second manual stop valve (13) is installed on the second pipeline (15), and a branch of the second pipeline (15) is provided with a fusible plug drain valve (12);
the first filter (7) is connected with a second inlet/outlet (3) and a third inlet/outlet (4) which are respectively arranged at the left side and the right side of the top of the cylinder valve main body (14) through a third pipeline (16);
the cylinder valve main body (14) is internally provided with a temperature sensor (5), and the third pipeline (16) is communicated with the second pipeline (15).
2. The cylinder valve applied to a high-pressure hydrogen supply system according to claim 1, wherein the first manual stop valve (8) is a normally open stop valve, and the second manual stop valve (13) is a normally closed stop valve.
3. The cylinder valve applied to the high-pressure hydrogen supply system is characterized in that the angle between the first pipeline (1) and the cylinder body (11) is alpha, the angle is more than or equal to 10 degrees and less than or equal to 30 degrees, and when the gas cylinder is inflated, the gas flow is guided to rotate, so that the gas cylinder is prevented from being inflated to form a hot spot.
4. A cylinder valve for a high pressure hydrogen supply system according to claim 1, wherein the filter (10) is a main filter with a precision of 10u for filtering impurities carried by an external gas source, and the filter (7) is an auxiliary filter with a lower precision than the main filter for filtering impurities generated in the gas cylinder.
5. The cylinder valve applied to the high-pressure hydrogen supply system according to claim 1, wherein the rear end of the fusible plug discharge valve (12) adopts a double-channel mode, and when a hydrogen supply system uses a plurality of cylinders, the fusible plug discharge valves (12) of the gas cylinders are directly connected by using a pipeline, so that the use of a tee joint is reduced.
6. The cylinder valve applied to the high-pressure hydrogen supply system according to claim 1, wherein the cylinder valve main body (14) adopts a gas inlet and outlet channel at two ends, and when a plurality of cylinders are used, the cylinder valves on the gas cylinders are directly communicated through an inlet and an outlet, so that the use of a system tee joint is reduced.
CN202011396011.8A 2020-12-03 2020-12-03 Cylinder valve applied to high-pressure hydrogen supply system Pending CN112610884A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011396011.8A CN112610884A (en) 2020-12-03 2020-12-03 Cylinder valve applied to high-pressure hydrogen supply system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011396011.8A CN112610884A (en) 2020-12-03 2020-12-03 Cylinder valve applied to high-pressure hydrogen supply system

Publications (1)

Publication Number Publication Date
CN112610884A true CN112610884A (en) 2021-04-06

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Application Number Title Priority Date Filing Date
CN202011396011.8A Pending CN112610884A (en) 2020-12-03 2020-12-03 Cylinder valve applied to high-pressure hydrogen supply system

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CN (1) CN112610884A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113513705A (en) * 2021-05-13 2021-10-19 重庆凯瑞动力科技有限公司 High-pressure hydrogen combined bottle mouth valve for vehicle
CN115382312A (en) * 2022-07-22 2022-11-25 有研工程技术研究院有限公司 Controllable gas flow direction purification column arranged in gas cylinder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113513705A (en) * 2021-05-13 2021-10-19 重庆凯瑞动力科技有限公司 High-pressure hydrogen combined bottle mouth valve for vehicle
CN113513705B (en) * 2021-05-13 2023-02-17 重庆凯瑞动力科技有限公司 High-pressure hydrogen combined bottle mouth valve for vehicle
CN115382312A (en) * 2022-07-22 2022-11-25 有研工程技术研究院有限公司 Controllable gas flow direction purification column arranged in gas cylinder

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