CN111916790A - Control method of high-pressure hydrogen storage system - Google Patents
Control method of high-pressure hydrogen storage system Download PDFInfo
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- CN111916790A CN111916790A CN202010702061.8A CN202010702061A CN111916790A CN 111916790 A CN111916790 A CN 111916790A CN 202010702061 A CN202010702061 A CN 202010702061A CN 111916790 A CN111916790 A CN 111916790A
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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
- H01M8/04201—Reactant storage and supply, e.g. means for feeding, pipes
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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
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- 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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Abstract
The invention relates to the technical field of new energy automobile structures and control, in particular to a control method of a high-pressure hydrogen storage system. The method comprises the steps of controlling a hydrogen storage system comprising a plurality of hydrogen supply paths, collecting the pressure change value in a high-pressure hydrogen storage bottle at the pipeline inlet in each hydrogen supply path and the pipeline pressure change value in each hydrogen supply path, comparing the collected pressure change value in the bottle with the pipeline pressure change value with a pressure limit value, judging whether the hydrogen supply path fails, controlling an electromagnetic valve at the outlet of the hydrogen supply path to close the hydrogen supply path if the hydrogen supply path fails, and opening the electromagnetic valve at the outlet of the hydrogen supply path to supply hydrogen to a galvanic pile if the hydrogen supply path fails. The control method is extremely simple and efficient, whether the hydrogen supply path is opened or not is selected according to the fault condition of each hydrogen supply path, the whole method can cope with various fault conditions, and the efficient and safe implementation of the hydrogen supply of the galvanic pile is ensured.
Description
Technical Field
The invention relates to the technical field of new energy automobile structures and control, in particular to a control method of a high-pressure hydrogen storage system.
Background
The traditional hydrogen storage system is complex in structure, high in danger, low in product maturity, mostly suitable for small-batch production, poor in product reliability, and the damage of a certain single component can cause the fault of the whole system, so that the fuel cell cannot run. In addition, the current hydrogen storage system of the fuel cell automobile can cause the fault of the whole system when a collision accident occurs or a single part is damaged in an open area, the automobile can not run, and the reliability and the capability of facing sudden faults are poor.
Disclosure of Invention
The present invention is directed to solve the above mentioned problems of the background art, and to provide a method for controlling a high pressure hydrogen storage system.
The technical scheme of the invention is as follows: a control method of a high-pressure hydrogen storage system is characterized in that: the method comprises the steps of controlling a hydrogen storage system comprising a plurality of hydrogen supply paths, collecting the pressure change value in a high-pressure hydrogen storage bottle at the pipeline inlet of each hydrogen supply path and/or the pipeline pressure change value of each hydrogen supply path, comparing the collected pressure change value in the bottle and/or the pipeline pressure change value with a pressure limit value, judging whether the hydrogen supply path has a fault, controlling an electromagnetic valve at the outlet of the hydrogen supply path to close the hydrogen supply path if the hydrogen supply path has the fault, and opening the electromagnetic valve at the outlet of the hydrogen supply path to enable the high-pressure hydrogen storage bottle of the hydrogen supply path to supply hydrogen to a galvanic pile if the hydrogen supply path has no fault.
Further, when all hydrogen supply paths in the high-pressure hydrogen storage system have faults, all the hydrogen supply paths are closed, and shutdown processing is carried out; and when all hydrogen supply paths in the high-pressure hydrogen storage system have no faults, all the hydrogen supply paths are opened, so that all the hydrogen supply paths supply hydrogen to the electric pile cooperatively.
Further passes through the outlet of the high-pressure hydrogen storage bottleThe first pressure sensor collects the pressure change value delta P in the high-pressure hydrogen storage bottle in unit time1Will be Δ P1And limit value P of pressure change in bottleinBy comparison, if Δ P1≤PinIf the high-pressure hydrogen storage bottle of the hydrogen supply path is not in fault, the high-pressure hydrogen storage bottle is judged to be in fault if the delta P is less than the threshold value1＞PinThen the high pressure hydrogen storage bottle of the hydrogen supply path is considered to be out of order.
Further, the pressure change value delta P in the high-pressure hydrogen storage bottle in unit time is collected1The method comprises the following steps: the first pressure sensor collects the pressure P in the high-pressure hydrogen storage bottle1Collecting the pressure P in the high-pressure hydrogen storage bottle after t time1tA value of change in pressure in said bottle per unit time Δ P1＝(P1t-P1)/t。
Further collecting the pipeline pressure change value delta P of the hydrogen supply path in unit time through a second pressure sensor on a pipeline between the high-pressure hydrogen storage bottle and the electromagnetic valve2Will be Δ P2And a pipeline pressure variation limit value PoutBy comparison, if Δ P2≤PoutIf the pipeline of the hydrogen supply path is not in fault, the pipeline is considered to be in fault, and if delta P is adopted2＞PoutThe pipeline of the hydrogen supply path is considered to be in failure.
Further, the pressure change value delta P of the pipeline of the hydrogen supply path in unit time is collected2The method comprises the following steps: the second pressure sensor collects the pressure P in the pipeline2Collecting the pressure P in the pipeline after t time2tSaid value of change in pressure per unit time Δ P of the pipe2＝(P2t-P2)/t。
And further collecting the hydrogen concentration of the hydrogen supply path environment, judging that the hydrogen supply path leaks when the hydrogen concentration exceeds a concentration set limit value, and immediately closing the hydrogen supply path.
Further collecting the hydrogen concentration H outside the pipeline between the high-pressure hydrogen storage bottle and the electromagnetic valve through a first hydrogen concentration sensor on the hydrogen supply path, and if the H exceeds a set hydrogen concentration limit value H1If hydrogen leakage occurs in the hydrogen supply path, the hydrogen supply path is immediately closed。
Further when H exceeds the set hydrogen concentration limit value H1When the hydrogen supply path is closed, the control system immediately closes the cylinder valve at the outlet of the high-pressure hydrogen storage cylinder and controls the electromagnetic valve to close the inlet of the hydrogen supply path.
The hydrogen supply path further comprises a high-pressure hydrogen storage bottle, a bottle valve and an electromagnetic valve; one end of the cylinder valve is communicated with the inlet of the high-pressure hydrogen storage cylinder and is used for controlling the opening and closing of the high-pressure hydrogen storage cylinder; the electromagnetic valve is a multi-way valve structure with a plurality of inlets and an outlet corresponding to the number of the high-pressure hydrogen storage bottles, and one inlet of the electromagnetic valve is communicated with the other end of the bottle valve through a pipeline.
The invention has the advantages that: 1. the hydrogen supply method of the high-pressure hydrogen storage system is efficiently controlled, whether the hydrogen supply path has a fault or not is judged by monitoring the pressure change value in the hydrogen supply path, the hydrogen supply path with the fault is quickly closed, the safety is ensured, the continuous hydrogen supply of the galvanic pile can be ensured at the same time, a plurality of paths are cooperatively carried out, the shutdown of the whole hydrogen supply system caused by the fault of one hydrogen supply path is avoided, and the reliability and the fault responsiveness are greatly improved;
2. the invention is shut down for maintenance when all hydrogen supply paths have faults, and supplies hydrogen in coordination when all hydrogen supply paths have no faults, thereby fully considering various conditions of supplying hydrogen to the galvanic pile and ensuring that hydrogen can be supplied to the galvanic pile safely and continuously;
3. the invention monitors the pressure change value in the high-pressure hydrogen storage bottle through the first pressure sensor at the outlet of the high-pressure hydrogen storage bottle, and compares the pressure change value with the pressure limit value in the high-pressure hydrogen storage bottle, thereby accurately judging the fault condition of the high-pressure hydrogen storage bottle and improving the operation safety degree of the high-pressure hydrogen storage bottle;
4. the calculation method of the pressure change value in the bottle per unit time is extremely simple, can accurately reflect the pressure change value in the bottle, and ensures the safe operation of the high-pressure hydrogen storage bottle;
5. according to the invention, the second pressure sensor on the pipeline of the hydrogen supply path is used for monitoring the pipeline pressure change value and comparing the pipeline pressure change value with the pipeline pressure limit value, so that the fault condition of the pipeline is accurately judged, and the operation safety degree of the pipeline is improved;
6. the method for calculating the pressure change value of the pipeline in unit time is extremely simple, can accurately reflect the pressure change value in the pipeline, and ensures the safe operation of the pipeline of the hydrogen supply path; (ii) a
7. The hydrogen leakage condition of the hydrogen supply path is judged by monitoring the hydrogen concentration condition outside the pipeline of the hydrogen supply path, and once the hydrogen is leaked, measures can be taken immediately, so that the safety is further improved;
8. according to the invention, the judgment standard of hydrogen leakage of the hydrogen supply path is determined by setting the hydrogen concentration limit value, so that the shutdown of the hydrogen supply path due to a small amount of hydrogen is avoided, and the problem of influence on safety due to the leakage condition is avoided;
9. when leakage occurs, the inlet of the whole hydrogen supply path, namely a cylinder valve, is immediately closed, and the outlet of the hydrogen supply path, namely an electromagnetic valve, is immediately closed, so that the safety of the whole hydrogen supply path is ensured;
10. the high-pressure hydrogen storage system provided by the invention is provided with a plurality of hydrogen supply paths to solve various fault problems in the hydrogen supply process, and solves the problem that the whole system is shut down when one hydrogen supply path in the prior art is in a problem.
The control method is extremely simple and efficient, whether the hydrogen supply path is started or not is selected according to the fault condition of each hydrogen supply path, the whole method can cope with various fault conditions, the efficient and safe implementation of hydrogen supply of the galvanic pile is ensured, and the method has great popularization value.
Drawings
FIG. 1: the high-pressure hydrogen storage system of the invention has a schematic structure;
wherein: 1-high pressure hydrogen storage bottle; 2-cylinder valve; 3-a first pressure sensor; 4-a second pressure sensor; 5, an electromagnetic valve; 6-a third pressure sensor; 7-a first hydrogen concentration sensor; 8-a second hydrogen concentration sensor; 9, electric pile; 10-safety valve; 11-manual emptying ball valve; 12-a pressurizer; 13-a one-way valve; 14-pressure reducing valve.
Detailed Description
The invention is described in further detail below with reference to the figures and the specific embodiments.
As shown in fig. 1, the high-pressure hydrogen storage system of this embodiment includes two groups of high-pressure hydrogen storage bottles 1, and is not limited to two groups of high-pressure hydrogen storage bottles 1 during actual use, and may be more than two groups, as long as the hydrogen supply function of this embodiment can be realized. The export of high pressure hydrogen storage bottle 1 is provided with bottle valve 2, bottle valve 2 is a three way valve, the export of access connection high pressure hydrogen storage bottle 1, an exit linkage hydrogen delivery pipe, another exit linkage hydrogen supply pipeline, be provided with the first pressure sensor 3 that is used for monitoring 1 internal pressure of high pressure hydrogen storage bottle on the bottle valve 2, the entrance point intercommunication bottle valve 2 of hydrogen supply pipeline, exit end intercommunication solenoid valve 5, solenoid valve 5 formula three-port ball valve as an organic whole, solenoid valve 5 of this embodiment possesses a plurality of imports in fact, import quantity corresponds with the quantity of high pressure hydrogen storage bottle 1. Be provided with the second pressure sensor 4 that is used for monitoring pipeline pressure variation value on the hydrogen supply pipeline, the outside of hydrogen supply pipeline is provided with first hydrogen concentration sensor 7 for the condition is revealed to the hydrogen of monitoring hydrogen supply pipeline. The present embodiment has two parallel hydrogen supply lines in total, and therefore the solenoid valve 5 of the present embodiment is a three-port solenoid valve.
The outlet end of the electromagnetic valve 5 is connected with the galvanic pile 9 through a conveying pipeline, hydrogen in the high-pressure hydrogen storage bottle 1 is conveyed to the galvanic pile 9, a pressure reducing valve 14 is arranged on the conveying pipeline, and a second hydrogen concentration sensor 8 is arranged outside the pipeline between the electromagnetic valve and the pressure reducing valve 14 and used for monitoring the hydrogen leakage condition of the conveying pipeline. A third pressure sensor 6 is provided between the pressure reducing valve 14 and the stack 9 for monitoring the pressure of the hydrogen line leading to the stack 9. Two branches are further arranged on a pipeline between the pressure reducing valve 14 and the galvanic pile 9, one branch is a pressure drainage pipeline which is provided with a safety valve 10 and used for draining hydrogen gas exceeding the hydrogen supply pressure limit value of the galvanic pile 9 to a hydrogen gas discharge pipeline, and the other branch is a discharge pipeline which is directly discharged in emergency and provided with a manual emptying ball valve 11.
The high-pressure hydrogen storage system of the embodiment is further provided with a hydrogenation pipeline which comprises a pressurizer 12 and a one-way valve 13, and hydrogen is added into the high-pressure hydrogen storage bottle 1 through the pressurizer 12.
In actual use, the operation of the whole high-pressure hydrogen storage system is controlled by the pressure sensor and the hydrogen concentration sensor.
1. When both hydrogen supply paths have no fault
The first step is as follows: starting a timer;
the second step is that: HMS detects two sets of first pressure sensor 3 pressure value P in unit time1And P1tTwo groups of second pressure sensors 4 pressure values P2And P2tCalculating the pressure change value delta P of the high-pressure hydrogen storage bottle 1 in the bottle per unit time1＝(P1t-P1) T, pressure change value delta P of hydrogen supply pipeline in unit time2＝(P2t-P2)/t；
The third step: the pressure change value of the high-pressure hydrogen storage bottle 1 and the bottle internal pressure change limit value PinComparing the pressure variation value of the hydrogen supply pipeline with a pipeline pressure variation limit value PoutComparing, if the pressure change value delta P per unit time in the two groups of high-pressure hydrogen storage bottles 11≤PinAnd the pressure change value delta P of the pipelines of the two groups of hydrogen supply paths in unit time2≤PoutThen, the high-pressure hydrogen storage bottles 1 and the hydrogen supply pipelines of the two groups of hydrogen supply paths are considered to have no fault;
the fourth step: the concentration of the hydrogen outside the hydrogen supply pipelines of the two groups of hydrogen supply paths is measured by two groups of first hydrogen concentration sensors 7, and if the monitored concentration of the hydrogen is less than the hydrogen concentration limit value H1If the hydrogen supply pipelines of the two groups of hydrogen supply paths are not leaked, judging that the hydrogen supply pipelines of the two groups of hydrogen supply paths are not leaked;
the fifth step: the HMS sends an electromagnetic valve working mode 1, namely two groups of high-pressure hydrogen storage bottles 1 work simultaneously, hydrogen enters a pressure reducing valve 14 through an electromagnetic valve 5, and enters a galvanic pile 9 after pressure regulation.
2. When one of the two hydrogen supply paths has a fault
The first step is as follows: starting a timer;
the second step is that: HMS detects two sets of first pressure sensor 3 pressure value P in unit time1And P1tTwo sets of second pressure sensors 4 pressureValue P2And P2tCalculating the pressure change value delta P of the high-pressure hydrogen storage bottle 1 in the bottle per unit time1＝(P1t-P1) T, pressure change value delta P of hydrogen supply pipeline in unit time2＝(P2t-P2)/t；
The third step: the pressure change value of the high-pressure hydrogen storage bottle 1 and the bottle internal pressure change limit value PinComparing the pressure variation value of the hydrogen supply pipeline with a pipeline pressure variation limit value PoutComparing, if the pressure value change value delta P in the unit time of the group of high-pressure hydrogen storage bottles 11≤PinAnd the pressure change value delta P of the group of hydrogen supply paths in the pipeline per unit time2≤PoutThen the group of hydrogen supply paths is considered to be fault-free; if the pressure value change value delta P per unit time in the other group of high-pressure hydrogen storage bottles 11＞PinOr the pressure change value delta P of the group of hydrogen supply paths in pipeline per unit time2＞PoutIf so, the group of hydrogen supply paths is considered to have a fault condition;
the fourth step: the first hydrogen concentration sensor 7 on the faultless hydrogen supply path measures the hydrogen concentration outside the hydrogen supply pipelines of the group of hydrogen supply paths, and if the monitored hydrogen concentration is less than the hydrogen concentration limit value H1The hydrogen supply pipelines of the group of hydrogen supply paths are considered to have no leakage;
the fifth step: the HMS sends an electromagnetic valve working mode 2, namely a group of faultless high-pressure hydrogen storage bottles 1 work, a group of faulted high-pressure hydrogen storage bottles 1 and a bottle valve 2 are closed, hydrogen of the high-pressure hydrogen storage bottles 1 in the faultless hydrogen supply path enters a pressure reducing valve 14 through an electromagnetic valve 5, and enters a galvanic pile 9 after pressure regulation.
3. When both groups of hydrogen supply paths have faults
The first step is as follows: starting a timer;
the second step is that: HMS detects two sets of first pressure sensor 3 pressure value P in unit time1And P1tTwo groups of second pressure sensors 4 pressure values P2And P2tCalculating the pressure change value delta P of the high-pressure hydrogen storage bottle 1 in the bottle per unit time1＝(P1t-P1) T, pipe of hydrogen supply pipelinePressure change value delta P per unit time2＝(P2t-P2)/t；
The third step: the pressure change value of the high-pressure hydrogen storage bottle 1 and the bottle internal pressure change limit value PinComparing the pressure variation value of the hydrogen supply pipeline with a pipeline pressure variation limit value PoutComparing, if the pressure value change value delta P in the two groups of high-pressure hydrogen storage bottles 1 in unit time1＞PinOr the pressure change value delta P of the group of hydrogen supply paths in pipeline per unit time2＞PoutJudging that the two groups of hydrogen supply paths have fault conditions;
the fourth step: and the HMS sends the working mode 3 of the electromagnetic valve, works abnormally and carries out shutdown processing.
In-bottle pressure variation limit value P of the present embodimentinThe limit values set by the structure which is not passed are different related to the structure of the high-pressure hydrogen storage bottle 1 and are obtained in a calibration mode during actual use. Similarly, the pipeline pressure variation limit value P of the present embodimentoutIs a limit associated with a particular hydrogen storage system configuration requirement, and different configurations having different limit requirements may be obtained by calibration. Hydrogen concentration Limit H of the present example1Is 10000 ppm.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. A control method of a high-pressure hydrogen storage system is characterized in that: the method comprises the steps of controlling a hydrogen storage system comprising a plurality of hydrogen supply paths, collecting the pressure change value in a high-pressure hydrogen storage bottle (1) at the pipeline inlet in each hydrogen supply path and/or the pipeline pressure change value of each hydrogen supply path, comparing the collected pressure change value in the bottle and/or the collected pipeline pressure change value with a set pressure change limit value respectively, judging whether the hydrogen supply path fails, controlling an electromagnetic valve (5) at the outlet of the hydrogen supply path to close the hydrogen supply path if the hydrogen supply path fails, and opening the electromagnetic valve (5) at the outlet of the hydrogen supply path to supply hydrogen to a galvanic pile (9) if the hydrogen supply path fails.
2. The method of claim 1, wherein: when all hydrogen supply paths in the high-pressure hydrogen storage system have faults, closing all the hydrogen supply paths and carrying out shutdown treatment; when all hydrogen supply paths in the high-pressure hydrogen storage system have no faults, all the hydrogen supply paths are opened, and all the hydrogen supply paths supply hydrogen to the electric pile (9) in a coordinated mode.
3. The method of claim 1, wherein: the pressure change value delta P of the high-pressure hydrogen storage bottle (1) in unit time is collected by a first pressure sensor (3) at the outlet of the high-pressure hydrogen storage bottle (1)1Will be Δ P1And limit value P of pressure change in bottleinBy comparison, if Δ P1≤PinIf the pressure of the hydrogen supply path is not in fault, the high-pressure hydrogen storage bottle (1) is judged to be in fault, and if delta P is not in fault, the high-pressure hydrogen storage bottle is judged to be in fault1＞PinThen, the high-pressure hydrogen storage bottle (1) of the hydrogen supply path is considered to be out of order.
4. A control method of a high pressure hydrogen storage system according to claim 3, wherein: the pressure change value delta P of the high-pressure hydrogen storage bottle (1) in unit time is collected1The method comprises the following steps: the first pressure sensor (3) collects the pressure P in the high-pressure hydrogen storage bottle (1)1Collecting the pressure P in the high-pressure hydrogen storage bottle (1) after t time1tA value of change in pressure in said bottle per unit time Δ P1＝(P1t-P1)/t。
5. The method of claim 1, wherein: by high pressure storageA second pressure sensor (4) on the pipeline between the hydrogen bottle (1) and the electromagnetic valve (5) collects the pressure change value delta P of the hydrogen supply path in unit time2Will be Δ P2And a pipeline pressure variation limit value PoutBy comparison, if Δ P2≤PoutIf the pipeline of the hydrogen supply path is not in fault, the pipeline is considered to be in fault, and if delta P is adopted2＞PoutThe pipeline of the hydrogen supply path is considered to be in failure.
6. The method of claim 5, wherein: the pressure change value delta P of the pipeline of the hydrogen supply path in unit time is collected2The method comprises the following steps: the second pressure sensor (4) collects the pressure P in the pipeline2Collecting the pressure P in the pipeline after t time2tSaid value of change in pressure per unit time Δ P of the pipe2＝(P2t-P2)/t。
7. The method of claim 1, wherein: and collecting the hydrogen concentration of the hydrogen supply path environment, judging that the hydrogen supply path leaks when the hydrogen concentration exceeds a concentration set limit value, and immediately closing the hydrogen supply path.
8. The method of claim 7, wherein: collecting the hydrogen concentration H outside the pipeline between the high-pressure hydrogen storage bottle (1) and the electromagnetic valve (5) through a first hydrogen concentration sensor (7) on the hydrogen supply path, and if the H exceeds a set hydrogen concentration limit value H1Then, the hydrogen leakage of the hydrogen supply path is considered to occur, and the hydrogen supply path is immediately closed.
9. The method of claim 8, wherein: when H exceeds the set hydrogen concentration limit value H1When the hydrogen supply path is closed, the control system immediately closes the cylinder valve (2) at the outlet of the high-pressure hydrogen storage cylinder (1) and controls the electromagnetic valve (5) to close the inlet of the hydrogen supply path.
10. A control method of a high pressure hydrogen storage system as claimed in any one of claims 1 to 9, characterized in that: the hydrogen supply path comprises a high-pressure hydrogen storage bottle (1), a bottle valve (2) and an electromagnetic valve (5); one end of the cylinder valve (2) is communicated with an inlet of the high-pressure hydrogen storage cylinder (1) and is used for controlling the opening and closing of the high-pressure hydrogen storage cylinder (1); the electromagnetic valve (5) is a multi-way valve structure with a plurality of inlets and an outlet corresponding to the number of the high-pressure hydrogen storage bottles (1), and one inlet of the electromagnetic valve (5) is communicated with the other end of the bottle valve (2) through a pipeline.
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| CN113419180A (en) * | 2021-05-24 | 2021-09-21 | 东风柳州汽车有限公司 | Hydrogen fuel cell automobile safety detection method, equipment, storage medium and device |
| CN114256490A (en) * | 2021-11-12 | 2022-03-29 | 潍柴动力股份有限公司 | Hydrogen storage system, method for detecting clamping stagnation of hydrogen storage valve of hydrogen storage system and fuel cell vehicle |
| CN114865022A (en) * | 2022-06-02 | 2022-08-05 | 上海捷氢科技股份有限公司 | Method for detecting fault of cylinder valve in vehicle-mounted hydrogen storage system and vehicle-mounted hydrogen storage system |
| CN114865022B (en) * | 2022-06-02 | 2024-01-12 | 上海捷氢科技股份有限公司 | Bottle valve fault detection method in vehicle-mounted hydrogen storage system and vehicle-mounted hydrogen storage system |
| CN115832370A (en) * | 2023-02-22 | 2023-03-21 | 佛山市清极能源科技有限公司 | Safety valve fault diagnosis method for fuel cell hydrogen system |
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