CN111129546A - Multifunctional combination valve of vehicle-mounted hydrogen system and method for applying multifunctional combination valve to hydrogenation and fuel cell - Google Patents
Multifunctional combination valve of vehicle-mounted hydrogen system and method for applying multifunctional combination valve to hydrogenation and fuel cell Download PDFInfo
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- CN111129546A CN111129546A CN201911384956.5A CN201911384956A CN111129546A CN 111129546 A CN111129546 A CN 111129546A CN 201911384956 A CN201911384956 A CN 201911384956A CN 111129546 A CN111129546 A CN 111129546A
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 110
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 110
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 107
- 239000000446 fuel Substances 0.000 title claims abstract description 22
- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000007789 gas Substances 0.000 claims abstract description 37
- 238000001914 filtration Methods 0.000 claims abstract description 14
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 5
- 239000010935 stainless steel Substances 0.000 claims abstract description 5
- 238000012544 monitoring process Methods 0.000 claims abstract description 4
- 230000002441 reversible effect Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 230000009467 reduction Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 150000002431 hydrogen Chemical class 0.000 claims description 3
- 230000002401 inhibitory effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000005764 inhibitory process Effects 0.000 claims description 2
- 230000006837 decompression Effects 0.000 abstract description 5
- 230000035939 shock Effects 0.000 abstract description 2
- 229910000619 316 stainless steel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 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
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- 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
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
- H01M8/04746—Pressure; Flow
- H01M8/04753—Pressure; Flow of fuel cell reactants
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Fuel Cell (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
A multifunctional combination valve suitable for a vehicle hydrogen system and a method for applying the multifunctional combination valve to hydrogenation and fuel cells, wherein the combination valve comprises: one-way assembly, filtering component, decompression component, evacuation subassembly, safe release subassembly, combination valve still include: the filling end connecting port, the hydrogen storage end connecting port, the emptying outlet and the gas outlet are used for connecting the combination valve with the hydrogen storage cylinder, the hydrogenation port and the fuel cell; and the pressure sensor interface is positioned behind the pressure reducing assembly and used for monitoring the air pressure of the system. Compared with the assembling and connecting mode of each valve of the traditional fuel cell vehicle-mounted hydrogen system, the combined valve has smaller volume, about 180mm in length, 50mm in width and 110mm in height, better shock resistance and convenient assembly and disassembly. In addition, the combined valve body is made of 316L stainless steel, has strong pressure resistance and hydrogen adaptability, can work under the pressure of 35MPa for a long time, and meets the use requirements of a vehicle-mounted hydrogen system.
Description
Technical Field
The invention belongs to the technical field of hydrogen energy, and particularly relates to a multifunctional combination valve of a vehicle-mounted hydrogen system applied to a fuel cell vehicle.
Background
In recent years, under the support of a series of policies in China, the hydrogen storage and hydrogenation industry is rapidly developed, fuel cell automobiles and parts thereof gradually enter the commercial promotion stage, and meanwhile, higher requirements are put forward on efficient and safe vehicle-mounted hydrogen storage systems, hydrogenation equipment and related parts. At present, the vehicle-mounted hydrogen system connects all the valves together through a large number of pipe joints, wherein the high-pressure double-clamping sleeve connection technology is always controlled by foreign high-end brands, and the high price makes the cost of the hydrogen system high. In addition, the use of a large number of pipe joints places higher demands on the airtightness of the system under the severe conditions of operation of the fuel cell vehicle. In order to solve the problem, the use of the pipe joint is reduced as much as possible, and the weight of parts is reduced so as to reduce the influence caused by vibration in the operation process.
The main factors affecting the combination valve of the vehicle-mounted hydrogen system are pressure, decompression ratio, flow rate, weight and the like. At present, the grade of vehicle-mounted hydrogen storage pressure is higher, the grade of 35MPa is used for filling, the maximum working pressure is 38.5MPa, and the maximum pressure bearing is 43.5MPa, so that the combination valve is required to be capable of bearing a high-pressure hydrogen environment.
The outlet pressure required by the vehicle for the vehicle-mounted hydrogen system is lower, and is generally between 0.5 and 1.5MPa, so that the combination valve can stably reach the decompression ratio required by the system. Meanwhile, certain requirements are also required on the outlet flow of the hydrogen system according to the requirements of the galvanic pile.
Due to the special operation of the vehicle-mounted hydrogen system on the vehicle, certain shock resistance and impact resistance are required, and due to the special connection of pipelines, higher requirements are also put forward on the weight of the combined valve.
In summary, a multifunctional combination valve of a vehicle-mounted hydrogen system, which has high integration degree and is relatively portable, is urgently needed to be developed to realize safe and reliable operation of the vehicle-mounted hydrogen system.
Disclosure of Invention
The invention aims to solve the technical requirements of the engineering and invents a multifunctional combined valve of a vehicle-mounted hydrogen system, which can solve the problems. The multifunctional combination valve of the vehicle-mounted hydrogen system comprises: a one-way component: the hydrogen backflow inhibition device is used for inhibiting hydrogen backflow and realizing reverse interception; a filter assembly: the hydrogen filtering device is used for filtering hydrogen to ensure the purity of the hydrogen; a pressure reducing assembly: for regulating the outlet pressure; an emptying assembly: the rear end of the pressure reducing assembly is used for enabling gas to enter the emptying passage; safe pressure relief subassembly: the hydrogen releasing device is arranged at the rear side of the branch of the emptying assembly and is used for releasing hydrogen in the pipeline; the combination valve further comprises: the filling end connecting port, the hydrogen storage end connecting port, the emptying outlet and the gas outlet are used for connecting the combination valve with the hydrogen storage cylinder, the hydrogenation port and the fuel cell; and the pressure sensor interface is positioned behind the pressure reducing assembly and used for monitoring the air pressure of the system.
Furthermore, the one-way component comprises an ejector block, a spring and a sealing ring.
Furthermore, the filter element in the filter assembly is a sintered filter element, and the gas from the hydrogenation device is filtered.
Further, the pressure reducing assembly is in a manual pressure adjusting mode, and the emptying assembly is a manual control assembly.
Further, the combination valve body is made of 316L stainless steel and can bear 35MPa pressure.
In addition, the invention also provides a hydrogenation method applying the multifunctional combination valve of the vehicle-mounted hydrogen system, which comprises the following steps: (1) high-pressure hydrogen of the hydrogenation gun is introduced into the filling end interface, the hydrogen directly enters the air inlet interface of the combination valve through the filling end interface, and the one-way assembly can carry out reverse interception on the added hydrogen; (2) the hydrogen is filtered by the filtering component, and the corresponding filter element can be replaced in the filtering component according to specific requirements to ensure that the purity of the hydrogen meets the corresponding standard; (3) hydrogen enters the hydrogen storage bottle through the hydrogen storage end interface for storage.
In addition, the invention also provides a fuel cell working method by utilizing the multifunctional combination valve of the vehicle-mounted hydrogen system, which comprises the following steps: (1) inputting hydrogen from the hydrogen storage end interface, and enabling the gas to pass through the pressure reduction assembly; (2) manually adjusting the pressure reducing assembly, and enabling the hydrogen to flow to the gas outlet and enter the fuel cell interface after the outlet pressure requirement is met; (3) the pressure sensor is arranged at the rear end of the pressure reducing assembly and monitors the pressure in the using process in real time.
Further, when gas needs to be exhausted, the exhausting assembly is manually operated, and the gas enters the exhausting passage.
Further, when the gas pressure is too high, a spring in the safety pressure relief assembly is compressed, and the branch is opened to enable the gas to enter an emptying branch and release the gas in the pipeline.
The multifunctional combination valve of the vehicle-mounted hydrogen system is provided with four gas path connecting ports and a pressure sensor interface, wherein the four gas path connecting ports are respectively a filling end connecting port, a hydrogen storage end connecting port, an emptying outlet and an air outlet, and can be directly connected with each connecting end of the hydrogen system, so that the combination valve is connected with three modules, namely a hydrogen storage cylinder, a hydrogenation port and a fuel cell, the operation is convenient, and the system is convenient to install. And after the pressure sensor interface is positioned on the decompression assembly, the trend of the air pressure in the system can be judged in real time through the monitoring of the pressure sensor, and corresponding measures can be taken in time when problems occur, so that the stable operation of the system is ensured.
The mechanical structure of the combination valve adopts the optimized design, and on the basis of ensuring the performance, the anti-seismic and pressure-resistant performance of the combination valve is ensured to the maximum extent. The valve body is machined from 316 stainless steel, the total number of the passages is 7, the seven passages are mutually connected, and parts are installed according to different functional requirements so as to achieve different functions.
Drawings
FIG. 1 is a schematic diagram of the shape and connection port of a combination valve of a hydrogen system
FIG. 2 is a schematic diagram of the connection of the combination valve of the hydrogen system
FIG. 3 internal schematic diagram of combination valve of hydrogen system
1. Filling end interfaces; 2. a unidirectional component; 3. a filter assembly; 4. a hydrogen storage end interface; 5. blocking; 6. a pressure sensor interface; 7. an air outlet; 8. blocking; 9. an evacuation outlet; 10. a safety pressure relief assembly; 11. an evacuation assembly; 12. a pressure relief assembly; pressure sensing, 13, hydrogen storage cylinders 14,
Detailed Description
As shown in fig. 1-3: the multifunctional combination valve of the vehicle-mounted hydrogen system comprises: the unidirectional component 2 is used for inhibiting hydrogen backflow and realizing reverse interception; the filtering component 3 is used for filtering the hydrogen to ensure the purity of the hydrogen; a pressure reducing assembly 12 for regulating the outlet pressure; an evacuation assembly 11, a rear end of the pressure reduction assembly, for making gas enter an evacuation passage; the safety pressure relief assembly 10 is arranged at the rear side of the branch of the emptying assembly and is used for releasing hydrogen in the pipeline; the filling end connecting port 1, the hydrogen storage end connecting port 4, the emptying outlet 9 and the gas outlet 7 are used for connecting the combination valve with the hydrogen storage cylinder 14, the hydrogenation port and the fuel cell; a pressure sensor interface 6, located behind the pressure relief assembly 12, monitors the system air pressure.
Furthermore, the one-way component 2 comprises an ejector block, a spring and a sealing ring.
Further, the filter element in the filter assembly 3 is a sintered filter element, and filters the gas from the hydrogenation device.
Further, the pressure relief assembly 12 is in a manual pressure regulating mode and the evacuation assembly is a manual control assembly.
Further, the combination valve body is made of 316L stainless steel and can bear 35MPa pressure.
The hydrogenation method applying the multifunctional combination valve of the vehicle-mounted hydrogen system comprises the following steps: high-pressure hydrogen of a hydrogenation gun is introduced into the filling end interface 1, the hydrogen directly enters the air inlet interface of the combination valve through the filling end interface, and the one-way component 2 can carry out reverse interception on the added hydrogen; the hydrogen is filtered by the filtering component 3, and the corresponding filter element can be replaced in the filtering component according to specific requirements, so that the purity of the hydrogen is ensured to meet the corresponding standard; hydrogen enters the hydrogen storage bottle through the hydrogen storage end interface 4 for storage.
The fuel cell working method by utilizing the multifunctional combination valve of the vehicle-mounted hydrogen system comprises the following steps: inputting hydrogen from the hydrogen storage end interface 4, and enabling the gas to pass through the pressure reduction component 12; manually adjusting the pressure reducing component 12, and enabling the hydrogen to flow to the gas outlet 7 and enter the fuel cell interface after the outlet pressure requirement is met; the pressure sensor is arranged at the rear end of the pressure reducing assembly and monitors the pressure in the using process in real time.
Further, when it is desired to remove the gas, the evacuation assembly 11 is manually operated and the gas enters the evacuation path.
Further, when the gas pressure is too high, the spring in the safety pressure relief assembly 10 is compressed, and the branch is opened to allow the gas to enter the evacuation branch, so as to release the gas in the pipeline.
The multifunctional combination valve of the vehicle-mounted hydrogen system is provided with four gas path connecting ports and a pressure sensor interface, wherein the four gas path connecting ports are respectively a filling end connecting port, a hydrogen storage end connecting port, a pressure relief emptying connecting port and a system gas outlet and can be directly connected with each connecting end of the hydrogen system, so that the combination valve is connected with three modules, namely a hydrogen storage gas cylinder, a hydrogenation port and a fuel cell, the operation is convenient, and the system is convenient to install. And, after the pressure sensor interface is located the decompression subassembly, through the control of pressure sensor 13, can judge the trend of atmospheric pressure in the system in real time, can in time take corresponding measure when the problem appears, ensure the steady operation of system.
The invention has smaller volume (about 180mm in length, 50mm in width and 110mm in height) and higher integration. Compared with the installation and connection of all valve bodies in the conventional fuel cell vehicle-mounted hydrogen system, the combined valve has the obvious advantages, the installation space is reduced, adverse effects caused by pipeline connection in the driving process are avoided, the safe and reliable operation of the system is improved, and the installation steps of the system are simplified.
The combined valve body is made of 316L stainless steel, has strong pressure resistance and hydrogen adaptability, can work under the pressure of 35MPa for a long time, and meets the requirements of a vehicle-mounted hydrogen system.
Although only the preferred embodiments of the present invention have been described in detail, it should be understood that many modifications and variations can be made by those skilled in the art without departing from the inventive concept, and therefore, all technical solutions that can be obtained by a person skilled in the art through logic analysis, inference or limited experiment based on the present invention, equivalent structures or equivalent procedures that are described in the specification and the attached drawings, or directly or indirectly applied to other related technical fields shall fall within the scope of protection defined by the claims of the present application.
Claims (9)
1. The utility model provides a multi-functional combination valve of on-vehicle hydrogen system which characterized in that: the combination valve includes:
a one-way component: the hydrogen backflow inhibition device is used for inhibiting hydrogen backflow and realizing reverse interception;
a filter assembly: the hydrogen filtering device is used for filtering hydrogen to ensure the purity of the hydrogen;
a pressure reducing assembly: for regulating the outlet pressure;
an emptying assembly: the rear end of the pressure reducing assembly is used for enabling gas to enter the emptying passage;
safe pressure relief subassembly: the hydrogen releasing device is arranged at the rear side of the branch of the emptying assembly and is used for releasing hydrogen in the pipeline;
the combination valve further comprises: the filling end connecting port, the hydrogen storage end connecting port, the emptying outlet and the gas outlet are used for connecting the combination valve with the hydrogen storage cylinder, the hydrogenation port and the fuel cell;
and the pressure sensor interface is positioned behind the pressure reducing assembly and used for monitoring the air pressure of the system.
2. The vehicular hydrogen system multifunctional combination valve according to claim 1, characterized in that: the one-way component comprises an ejector block, a spring and a sealing ring.
3. The vehicular hydrogen system multifunctional combination valve according to claim 1, characterized in that: the filter element in the filter assembly is a sintered filter element and is used for filtering the gas from the hydrogenation device.
4. The vehicular hydrogen system multifunctional combination valve according to claim 1, characterized in that: the pressure reducing assembly is in a manual pressure adjusting mode, and the emptying assembly is a manual control assembly.
5. The vehicular hydrogen system multifunctional combination valve according to claim 1, characterized in that: the combination valve body is made of 316L stainless steel and can bear 35MPa pressure.
6. A hydrogenation method using the multifunctional combination valve of the vehicle-mounted hydrogen system as claimed in claims 1-5, characterized in that: hydrogenation to an on-board hydrogen system comprises the steps of: (1) high-pressure hydrogen of the hydrogenation gun is introduced into the filling end interface, the hydrogen directly enters the air inlet interface of the combination valve through the filling end interface, and the one-way assembly can carry out reverse interception on the added hydrogen; (2) the hydrogen is filtered by the filtering component, and the corresponding filter element can be replaced in the filtering component according to specific requirements to ensure that the purity of the hydrogen meets the corresponding standard; (3) hydrogen enters the hydrogen storage bottle through the hydrogen storage end interface for storage.
7. A fuel cell operation method using the on-vehicle hydrogen system multifunction combined valve according to claims 1 to 5, characterized in that: the method comprises the following steps: (1) inputting hydrogen from the hydrogen storage end interface, and enabling the gas to pass through the pressure reduction assembly; (2) manually adjusting the pressure reducing assembly, and enabling the hydrogen to flow to the gas outlet and enter the fuel cell interface after the outlet pressure requirement is met; (3) the pressure sensor is arranged at the rear end of the pressure reducing assembly and monitors the pressure in the using process in real time.
8. The fuel cell operation method according to claim 7, wherein: when gas needs to be exhausted, the exhausting assembly is manually operated, and the gas enters the exhausting passage.
9. The fuel cell operation method according to claim 7, wherein: when the gas pressure is too high, the spring in the safety pressure relief assembly is compressed, the branch is opened to enable the gas to enter the emptying branch, and the gas in the pipeline is released.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911384956.5A CN111129546A (en) | 2019-12-28 | 2019-12-28 | Multifunctional combination valve of vehicle-mounted hydrogen system and method for applying multifunctional combination valve to hydrogenation and fuel cell |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911384956.5A CN111129546A (en) | 2019-12-28 | 2019-12-28 | Multifunctional combination valve of vehicle-mounted hydrogen system and method for applying multifunctional combination valve to hydrogenation and fuel cell |
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| CN111129546A true CN111129546A (en) | 2020-05-08 |
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| CN201911384956.5A Pending CN111129546A (en) | 2019-12-28 | 2019-12-28 | Multifunctional combination valve of vehicle-mounted hydrogen system and method for applying multifunctional combination valve to hydrogenation and fuel cell |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101418910A (en) * | 2008-11-28 | 2009-04-29 | 同济大学 | Integral bottle valve FOR vehicle-mounted high-pressure hydrogen storing bottle |
| US20140014205A1 (en) * | 2012-07-16 | 2014-01-16 | Eveready Battery Company, Inc. | Valve Having Concentric Fluid Paths |
| CN207268376U (en) * | 2017-09-12 | 2018-04-24 | 张家港富瑞氢能装备有限公司 | An on-board hydrogen system for a fuel cell vehicle |
| CN109340411A (en) * | 2018-10-15 | 2019-02-15 | 武汉格罗夫氢能汽车有限公司 | Hydrogen-feeding system integral type regulator |
| CN213026210U (en) * | 2019-12-28 | 2021-04-20 | 中国船舶重工集团公司第七一八研究所 | Multifunctional combined valve of vehicle-mounted hydrogen system |
-
2019
- 2019-12-28 CN CN201911384956.5A patent/CN111129546A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101418910A (en) * | 2008-11-28 | 2009-04-29 | 同济大学 | Integral bottle valve FOR vehicle-mounted high-pressure hydrogen storing bottle |
| US20140014205A1 (en) * | 2012-07-16 | 2014-01-16 | Eveready Battery Company, Inc. | Valve Having Concentric Fluid Paths |
| CN207268376U (en) * | 2017-09-12 | 2018-04-24 | 张家港富瑞氢能装备有限公司 | An on-board hydrogen system for a fuel cell vehicle |
| CN109340411A (en) * | 2018-10-15 | 2019-02-15 | 武汉格罗夫氢能汽车有限公司 | Hydrogen-feeding system integral type regulator |
| CN213026210U (en) * | 2019-12-28 | 2021-04-20 | 中国船舶重工集团公司第七一八研究所 | Multifunctional combined valve of vehicle-mounted hydrogen system |
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