CN110571457B - Vehicle-mounted high-pressure hydrogen storage device with self-adaptive gas supply structure and hydrogen fuel cell vehicle - Google Patents
Vehicle-mounted high-pressure hydrogen storage device with self-adaptive gas supply structure and hydrogen fuel cell vehicle Download PDFInfo
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- CN110571457B CN110571457B CN201910894877.2A CN201910894877A CN110571457B CN 110571457 B CN110571457 B CN 110571457B CN 201910894877 A CN201910894877 A CN 201910894877A CN 110571457 B CN110571457 B CN 110571457B
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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
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- 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 discloses a vehicle-mounted high-pressure hydrogen storage device with a self-adaptive gas supply structure, which comprises a hydrogen cylinder group, wherein a gas inlet pipeline of the hydrogen cylinder group is sequentially provided with a hydrogen adding port and a one-way valve, a gas outlet pipeline of the hydrogen cylinder group is sequentially provided with a primary pressure reducer, a medium-pressure sensor and a primary safety valve, a first secondary pressure reducer and a second secondary pressure reducer are arranged behind the primary safety valve in parallel, a first secondary safety valve is arranged behind the first secondary pressure reducer, a first outlet for communicating with a first fuel cell is arranged behind the first secondary safety valve, a second secondary safety valve is arranged behind the second secondary pressure reducer, and a second outlet for communicating with a second fuel cell is arranged behind the second secondary safety valve. The two second-stage pressure reducers are connected in parallel at the rear ends of the first-stage pressure reducers, stable hydrogen output by the first-stage pressure reducers is divided into two paths to be output, the two second-stage pressure reducers are used for respectively controlling the hydrogen supply of the two fuel cells, and the stability of the hydrogen supply pressure is realized without mutual influence. The invention also provides a hydrogen fuel cell vehicle.
Description
Technical Field
The invention relates to the technical field of fuel cell systems, in particular to a vehicle-mounted high-pressure hydrogen storage device with a self-adaptive gas supply structure and a hydrogen fuel cell vehicle.
Background
The vehicle-mounted high-pressure hydrogen storage system is a hydrogen storage system which integrates a vehicle-mounted high-pressure hydrogen bottle, a pipeline and a valve according to a specific principle, and hydrogen is stored in the vehicle-mounted hydrogen storage system in a pressurized mode, so that power fuel can be provided for a fuel cell vehicle, and a certain driving range of the vehicle is guaranteed.
Because the high-power vehicle type is provided with two or more fuel cells, when the two or more fuel cells run simultaneously, the requirement on the gas supply flow is large, the low-pressure hydrogen output by the hydrogen storage system can move mutually due to asynchronous working power of the two fuel cells, so that the power of the fuel cells is unstable, and the gas supply flow of a single gas supply and hydrogen storage system can not meet the use requirement; and the air feed flow fluctuates along with the continuous change of the vehicle running condition, the fluctuation of the air feed flow is directly embodied as the control of a secondary pressure reducer in the hydrogen storage system to the output pressure, the simultaneous working of the two fuel cells can intensify the impact of the flow fluctuation to the secondary pressure reducer, once the secondary pressure reducer fails, the downstream parts can not work normally, and even the hydrogen pressure exceeds the working range thereof, so that the downstream parts are directly damaged.
If two fuel cell are worked simultaneously, because of the difference of fuel cell power, the hydrogen pressure in two exits fluctuates along with different operating mode, and two exports are the intercommunication, will arouse in two places pipelines hydrogen influence of drunkenness each other, lead to the air feed pressure unstability, and the second grade pressure reducer work fluctuation aggravation in the upper reaches influences life.
Therefore, how to provide a vehicle-mounted high-pressure hydrogen storage device with a self-adaptive gas supply structure to realize stable and non-influencing multi-path output pressure is a technical problem to be solved urgently by technical personnel in the field at present.
Disclosure of Invention
In view of the above, the present invention provides a vehicle-mounted high-pressure hydrogen storage device with an adaptive gas supply structure, so as to achieve stable and non-interfering output pressure. Another object of the present invention is to provide a hydrogen fuel cell vehicle employing the onboard high-pressure hydrogen storage apparatus with an adaptive gas supply structure.
In order to achieve the purpose, the invention provides the following technical scheme:
a vehicle-mounted high-pressure hydrogen storage device with a self-adaptive gas supply structure comprises a hydrogen cylinder group, a hydrogen adding port, a one-way valve, a first-stage pressure reducer, a medium-pressure sensor, a first-stage safety valve, a first second-stage pressure reducer, a second-stage pressure reducer, a first second-stage safety valve and a second-stage safety valve, wherein,
the gas inlet pipeline of the hydrogen cylinder group is sequentially provided with the hydrogenation port and the one-way valve,
the first-stage pressure reducer, the medium-pressure sensor and the first-stage safety valve are sequentially arranged on the gas outlet pipeline of the hydrogen cylinder group, the first second-stage pressure reducer and the second-stage pressure reducer are arranged behind the first-stage safety valve in parallel,
the first secondary safety valve is arranged behind the first secondary pressure reducer, a first outlet used for being communicated with a first fuel cell is arranged behind the first secondary safety valve,
the second secondary safety valve is arranged behind the second secondary pressure reducer, and a second outlet used for being communicated with a second fuel cell is arranged behind the second secondary safety valve.
Preferably, the vehicle-mounted high-pressure hydrogen storage device with the self-adaptive gas supply structure further comprises a plurality of secondary pressure reducers, a plurality of secondary pressure reducers are arranged behind the primary safety valve in parallel,
a plurality of said second stage pressure reducers being arranged in parallel with said first and second stage pressure reducers,
a plurality of the second-stage pressure reducers are respectively provided with a second-stage safety valve, and each second-stage safety valve is provided with an outlet used for being communicated with other fuel cells.
Preferably, an air release pipeline is arranged on the air outlet pipeline of the hydrogen cylinder group and between the first-stage pressure reducer and the medium-pressure sensor, and a stop valve and an air release port are sequentially arranged on the air release pipeline.
Preferably, the shut-off valve is a manual shut-off valve.
Preferably, the hydrogen cylinder group is provided with a high-pressure sensor.
Preferably, a filter is arranged on the air inlet pipeline of the hydrogen cylinder group and behind the one-way valve.
Preferably, the hydrogen cylinder group includes a plurality of hydrogen gas storage cylinders.
Preferably, a plurality of the hydrogen storage bottles share the same air inlet pipeline and the same air outlet pipeline.
The invention also provides a hydrogen fuel cell vehicle, which comprises a plurality of fuel cells and a vehicle-mounted high-pressure hydrogen storage device with the self-adaptive gas supply structure.
Preferably, the hydrogen fuel cell vehicle is a four-wheel vehicle.
The invention provides a vehicle-mounted high-pressure hydrogen storage device with a self-adaptive gas supply structure, which comprises a hydrogen cylinder group, a hydrogenation port, a check valve, a first-stage pressure reducer, a medium-pressure sensor, a first-stage safety valve, a first second-stage pressure reducer, a second-stage pressure reducer, a first second-stage safety valve and a second-stage safety valve, wherein the hydrogenation port and the check valve are sequentially arranged on a gas inlet pipeline of the hydrogen cylinder group, the first-stage pressure reducer, the medium-pressure sensor and the first-stage safety valve are sequentially arranged on a gas outlet pipeline of the hydrogen cylinder group, the first second-stage pressure reducer and the second-stage pressure reducer are arranged behind the first second-stage pressure reducer in parallel, the first second-stage safety valve is arranged behind the first second-stage pressure reducer, a first pressure reducer communicated with a first fuel cell is arranged behind the first second-stage safety valve, and, the second secondary safety valve is followed by a second outlet for communication with a second fuel cell.
When only one fuel cell of the vehicle works, the corresponding two-stage pressure reducers synchronously regulate the pressure, and the other two-stage pressure reducer and the downstream parts thereof are not influenced; when the two fuel cells work simultaneously, the two-stage pressure reducers simultaneously carry out independent two-way pressure regulation, the inlet pressure of the two-stage pressure reducers is relatively stable and does not interfere with each other, the two-stage pressure reducers automatically adapt to the power requirement of the downstream fuel cells, and the stable work of the two fuel cells is ensured.
By utilizing the working characteristics of the pressure reducer, the influence of the change of the outlet pressure of the second-stage pressure reducer on the pressure fluctuation of the inlet is small, so that the first-stage pressure reducer cannot be influenced by the power change of the fuel cell, and the working environment is relatively stable. The two second-stage pressure reducers are connected in parallel at the rear ends of the first-stage pressure reducers of the hydrogen storage system, stable hydrogen output by the first-stage pressure reducers is divided into two paths to be output, and the two second-stage pressure reducers are used for respectively controlling the hydrogen supply of the two fuel cells, so that the stability of hydrogen supply pressure is realized, and the stability and the mutual influence are avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a vehicle-mounted high-pressure hydrogen storage device with a self-adaptive gas supply structure according to an embodiment of the invention.
In the above FIG. 1:
the device comprises a hydrogen cylinder group 1, a hydrogenation port 2, a vent port 3, a one-way valve 4, a filter 5, a stop valve 6, a primary pressure reducer 7, a medium pressure sensor 8, a primary safety valve 9, a first secondary pressure reducer 101, a second secondary pressure reducer 102, a first secondary safety valve 111, a second secondary safety valve 112 and a high pressure sensor 12.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a vehicle-mounted high-pressure hydrogen storage device with a self-adaptive gas supply structure according to an embodiment of the present invention.
The vehicle-mounted high-pressure hydrogen storage device with the self-adaptive gas supply structure comprises a hydrogen cylinder group 1, a hydrogen adding port 2, a one-way valve 4, a first-stage pressure reducer 7, a medium-pressure sensor 8, a first-stage safety valve 9, a first second-stage pressure reducer 101, a second-stage pressure reducer 102, a first second-stage safety valve 111 and a second-stage safety valve 112, wherein the hydrogen adding port 2 and the one-way valve 4 are sequentially arranged on a gas inlet pipeline of the hydrogen cylinder group 1, the first-stage pressure reducer 7, the medium-pressure sensor 8 and the first-stage safety valve 9 are sequentially arranged on a gas outlet pipeline of the hydrogen cylinder group 1, the first second-stage pressure reducer 101 and the second-stage pressure reducer 102 are arranged behind the first-stage safety valve 9 in parallel, the first second-stage safety valve 111 is arranged behind the first second-stage pressure reducer 101, a first outlet for communicating with a first fuel cell, the second secondary safety valve 112 is followed by a second outlet for communication with a second fuel cell.
When only one fuel cell of the vehicle works, the corresponding two-stage pressure reducers synchronously regulate the pressure, and the other two-stage pressure reducer and the downstream parts thereof are not influenced; when the two fuel cells work simultaneously, the two-stage pressure reducers simultaneously carry out independent two-way pressure regulation, the inlet pressure of the two-stage pressure reducers is relatively stable and does not interfere with each other, the two-stage pressure reducers automatically adapt to the power requirement of the downstream fuel cells, and the stable work of the two fuel cells is ensured.
By utilizing the working characteristics of the pressure reducer, the influence of the change of the outlet pressure of the second-stage pressure reducer on the pressure fluctuation of the inlet is small, so that the first-stage pressure reducer 7 cannot be influenced by the power change of the fuel cell, and the working environment is relatively stable. The two second-stage pressure reducers are connected in parallel at the rear ends of the first-stage pressure reducers 7 of the hydrogen storage system, stable hydrogen output by the first-stage pressure reducers 7 is divided into two paths to be output, and the two second-stage pressure reducers are used for controlling the hydrogen supply of the two fuel cells respectively, so that the stability of hydrogen supply pressure is realized, and the hydrogen supply pressure is not influenced by each other.
In order to further optimize the above scheme, the vehicle-mounted high-pressure hydrogen storage device of the self-adaptive gas supply structure further comprises a plurality of second-stage pressure reducers, a plurality of second-stage pressure reducers are arranged behind the first-stage safety valve 9 in parallel, the plurality of second-stage pressure reducers are arranged in parallel with the first second-stage pressure reducer 101 and the second-stage pressure reducer 102, a second-stage safety valve is arranged behind each of the plurality of second-stage pressure reducers, and an outlet for communicating with other fuel cells is arranged behind each second-.
Specifically, the gas outlet pipeline of the hydrogen cylinder group 1 is provided with a vent pipeline between the first-stage pressure reducer 7 and the medium-pressure sensor 8, and the vent pipeline is sequentially provided with a stop valve 6 and a vent 3. The stop valve 6 is a manual stop valve. The manual emptying of hydrogen in the hydrogen storage system is realized.
Specifically, the hydrogen cylinder group 1 is provided with a high-pressure sensor 12. A filter 5 is provided on the intake line of the hydrogen cylinder group 1 and after the check valve 4.
Specifically, the hydrogen cylinder group 1 includes a plurality of hydrogen storage cylinders. The hydrogen storage bottles share the same air inlet pipeline and the same air outlet pipeline.
The invention also provides a hydrogen fuel cell vehicle, which comprises a plurality of fuel cells and a vehicle-mounted high-pressure hydrogen storage device of the self-adaptive gas supply structure according to any one embodiment. The hydrogen fuel cell vehicle is a four-wheeled vehicle.
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 (10)
1. A vehicle-mounted high-pressure hydrogen storage device with a self-adaptive gas supply structure is characterized by comprising a hydrogen cylinder group, a hydrogen adding port, a check valve, a first-stage pressure reducer, a medium-pressure sensor, a first-stage safety valve, a first second-stage pressure reducer, a second-stage pressure reducer, a first second-stage safety valve and a second-stage safety valve, wherein,
the gas inlet pipeline of the hydrogen cylinder group is sequentially provided with the hydrogenation port and the one-way valve,
the first-stage pressure reducer, the medium-pressure sensor and the first-stage safety valve are sequentially arranged on the gas outlet pipeline of the hydrogen cylinder group, the first second-stage pressure reducer and the second-stage pressure reducer are arranged behind the first-stage safety valve in parallel,
the first secondary safety valve is arranged behind the first secondary pressure reducer, a first outlet used for being communicated with a first fuel cell is arranged behind the first secondary safety valve,
the second secondary safety valve is arranged behind the second secondary pressure reducer, and a second outlet used for being communicated with a second fuel cell is arranged behind the second secondary safety valve.
2. The vehicle-mounted high-pressure hydrogen storage device with the adaptive gas supply structure according to claim 1, further comprising a plurality of secondary pressure reducers, wherein the plurality of secondary pressure reducers are arranged behind the primary safety valve in parallel,
a plurality of said second stage pressure reducers being arranged in parallel with said first and second stage pressure reducers,
a plurality of the second-stage pressure reducers are respectively provided with a second-stage safety valve, and each second-stage safety valve is provided with an outlet used for being communicated with other fuel cells.
3. The vehicle-mounted high-pressure hydrogen storage device with the self-adaptive gas supply structure according to claim 1, wherein an air release pipeline is arranged on the air outlet pipeline of the hydrogen cylinder group and between the first-stage pressure reducer and the medium-pressure sensor, and a stop valve and an air release port are sequentially arranged on the air release pipeline.
4. The vehicle-mounted high-pressure hydrogen storage device with the adaptive gas supply structure according to claim 3, wherein the stop valve is a manual stop valve.
5. The vehicle-mounted high-pressure hydrogen storage device with the adaptive gas supply structure according to claim 1, wherein a high-pressure sensor is arranged on the hydrogen cylinder group.
6. The vehicle-mounted high-pressure hydrogen storage device with the adaptive gas supply structure according to claim 1, wherein a filter is arranged on the gas inlet pipeline of the hydrogen cylinder group and behind the one-way valve.
7. The vehicle-mounted high-pressure hydrogen storage device with an adaptive gas supply structure according to claim 1, wherein the hydrogen cylinder group comprises a plurality of hydrogen gas storage cylinders.
8. The vehicle-mounted high-pressure hydrogen storage device with the adaptive gas supply structure according to claim 7, wherein a plurality of hydrogen storage bottles share the same gas inlet pipeline and the same gas outlet pipeline.
9. A hydrogen fuel cell vehicle comprising a plurality of fuel cells, characterized by further comprising an on-vehicle high-pressure hydrogen storage device of an adaptive gas supply structure according to any one of claims 1 to 8.
10. The hydrogen fuel cell vehicle according to claim 9, wherein the hydrogen fuel cell vehicle is a four-wheel vehicle.
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| CN111129544B (en) * | 2019-12-27 | 2024-08-20 | 深圳国氢新能源科技有限公司 | Hydrogen supply system applied to hydrogen fuel cell automobile and hydrogen fuel cell automobile |
| CN111244506B (en) * | 2020-01-17 | 2020-09-11 | 擎能动力科技(苏州)有限公司 | New energy automobile fuel cell system, working method, hydrogen gas inlet flow calculation method and efficiency evaluation method |
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Address after: 201800 No. 1788, xiechun Road, Anting Town, Jiading District, Shanghai Patentee after: Shanghai jiehydrogen Technology Co.,Ltd. Address before: 201804 unit 10, No.17, Lane 56, Antuo Road, Jiading District, Shanghai Patentee before: Shanghai Jet Hydrogen Technology Co.,Ltd. |