CN114665128A - Solid hydrogen storage and supply device and hydrogen supply method - Google Patents
Solid hydrogen storage and supply device and hydrogen supply method Download PDFInfo
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- CN114665128A CN114665128A CN202210360449.3A CN202210360449A CN114665128A CN 114665128 A CN114665128 A CN 114665128A CN 202210360449 A CN202210360449 A CN 202210360449A CN 114665128 A CN114665128 A CN 114665128A
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- fuel cell
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- 239000001257 hydrogen Substances 0.000 title claims abstract description 125
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 125
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 124
- 239000007787 solid Substances 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 title claims abstract description 12
- 239000000446 fuel Substances 0.000 claims abstract description 45
- 238000004891 communication Methods 0.000 claims abstract description 5
- 230000000087 stabilizing effect Effects 0.000 claims description 28
- 238000011217 control strategy Methods 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Classifications
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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
-
- 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
-
- 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
- H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
- H01M8/0438—Pressure; Ambient pressure; Flow
-
- 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)
Abstract
The invention discloses a solid hydrogen storage and supply device and a hydrogen supply method, wherein the solid hydrogen storage and supply device comprises: hydrogen supply pipeline, booster pump, surge tank, pressure sensor, controller, wherein, the entry end of hydrogen supply pipeline is connected in solid-state hydrogen storage system and exit end and is connected in the fuel cell system, the booster pump with the surge tank along the direction of admitting air in proper order concatenate in the hydrogen supply pipeline, pressure sensor is used for detecting the hydrogen pressure of surge tank, the controller respectively with pressure sensor the booster pump with fuel cell system communication connection, the controller can be based on the pressure value that pressure sensor detected and fuel cell system's output power control opening and closing of booster pump. The invention performs real-time pressurization at the hydrogen supply end of the solid hydrogen storage system, realizes stable high-pressure and high-flow hydrogen supply, and meets the requirement of high-power stable operation of fuel cell systems of medium and heavy trucks, buses and the like.
Description
Technical Field
The invention relates to the technical field of hydrogen fuel cells, in particular to a solid hydrogen storage and supply device and a hydrogen supply method.
Background
The fuel cell power system of the hydrogen fuel cell vehicle adopts the oxidation-reduction reaction of hydrogen and oxygen to generate electricity to drive the vehicle to run, and has no pollution emission, high efficiency, cleanness and no carbon dioxide emission. As a device for storing hydrogen in a fuel cell vehicle, a solid-state hydrogen storage system is gradually becoming one of the important energy storage devices of a hydrogen fuel system due to its advantages of low hydrogen storage pressure, high hydrogen storage density, and the like. The hydrogen supply pressure and flow of the current solid-state hydrogen storage system are small, and the requirements of high-power fuel cell systems such as medium and heavy trucks, buses and the like cannot be met.
Therefore, how to effectively increase the pressure and flow rate of hydrogen supply by solid-state hydrogen storage is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a solid-state hydrogen storage and supply device, which can effectively increase the pressure and flow rate of the solid-state hydrogen storage and supply, so that the application range of the solid-state hydrogen storage system is wider. It is another object of the present invention to provide a method of hydrogen supply.
In order to achieve the purpose, the invention provides the following technical scheme:
a solid state hydrogen storage and supply apparatus comprising: hydrogen supply pipeline, booster pump, surge tank, pressure sensor, controller, wherein, the entry end of hydrogen supply pipeline is connected in solid-state hydrogen storage system and exit end and is connected in the fuel cell system, the booster pump with the surge tank along the direction of admitting air in proper order concatenate in the hydrogen supply pipeline, pressure sensor is used for detecting the hydrogen pressure of surge tank, the controller respectively with pressure sensor the booster pump with fuel cell system communication connection, the controller can be based on the pressure value that pressure sensor detected and fuel cell system's output power control opening and closing of booster pump.
Preferably, the pressure sensor is disposed in the hydrogen supply line between the surge tank and the fuel cell system.
Preferably, the hydrogen supply pipeline is provided with a first one-way valve between the solid hydrogen storage system and the booster pump.
Preferably, the hydrogen supply pipeline is provided with a second one-way valve between the booster pump and the pressure stabilizing bottle.
The invention also provides a hydrogen supply method, which is applied to the solid hydrogen storage and supply device and comprises the following steps:
acquiring a pressure value of a pressure stabilizing bottle and the output power of a fuel cell system;
judging whether the output power is larger than or equal to the rated power, if so, returning to the previous step; if not, the next step is carried out:
and judging whether the pressure value is smaller than a lower pressure limit value or not, if so, controlling the booster pump to be started, acquiring the pressure value of the pressure stabilizing bottle in real time, closing the booster pump until the pressure value is larger than or equal to an upper pressure limit value, and returning to the first step.
Preferably, in the step of judging whether the pressure value is smaller than the lower pressure limit value, if the judgment result is negative, an alarm signal is sent out.
The invention carries out real-time pressurization at the rear end of the gas outlet of the solid hydrogen storage system, stores hydrogen in the pressure stabilizing bottle, directly provides hydrogen for the fuel cell system at high pressure and high flow rate by the pressure stabilizing bottle, sets a control strategy according to the requirement of the output power of the fuel cell system on the hydrogen pressure, detects the hydrogen pressure in the pressure stabilizing bottle in real time, controls the booster pump to start when the hydrogen pressure in the pressure stabilizing bottle is lower than a lower limit value, and controls the booster pump to close when the hydrogen pressure in the pressure stabilizing bottle reaches an upper limit value, thereby forming closed-loop control. The pressure stabilizing bottle can continuously and stably provide hydrogen for the fuel cell system within a certain pressure range, and the requirement of high power output of the fuel cell system is met.
Therefore, the invention can realize the real-time pressurization at the hydrogen supply end of the solid-state hydrogen storage system, realize the stable high-pressure and high-flow hydrogen supply, respond to the high-power operation of the fuel cell system in time, effectively solve the defects of low hydrogen supply pressure, low flow, instability and the like of the solid-state hydrogen storage system, meet the high-power stable operation requirement of the fuel cell system of medium and heavy trucks, buses and the like, and ensure that the solid-state hydrogen storage system can be widely applied to the medium and heavy transportation industry.
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 described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a solid-state hydrogen storage and supply apparatus according to an embodiment of the present invention;
fig. 2 is a flow chart of a hydrogen supply method in an embodiment of the present invention.
The various reference numerals in fig. 1 have the following meanings:
1-solid hydrogen storage system, 2-hydrogen supply pipeline, 3-first one-way valve, 4-booster pump, 5-second one-way valve, 6-pressure stabilizing bottle, 7-fuel cell system, 8-controller and 9-pressure sensor.
Detailed Description
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 only a part of the embodiments of the present invention, and not all of the embodiments. 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 diagram of a solid-state hydrogen storage and supply device according to an embodiment of the present invention.
The invention provides a solid hydrogen storage and supply device, comprising: hydrogen supply pipeline 2, booster pump 4, steady voltage bottle 6, pressure sensor 9, controller 8, wherein, the entry end of hydrogen supply pipeline 2 is connected in the export of solid-state hydrogen storage system 1, and the exit end of hydrogen supply pipeline 2 is connected in fuel cell system 7, booster pump 4 and steady voltage bottle 6 are in proper order in series connection in hydrogen supply pipeline 2 along the direction of admitting air, pressure sensor 9 is used for detecting the hydrogen pressure of steady voltage bottle 6, controller 8 respectively with pressure sensor 9, booster pump 4 and fuel cell system 7 communication connection, controller 8 can be based on the pressure value that pressure sensor 9 detected and the open and close of output control booster pump 4 of fuel cell system 7.
It should be noted that the pressure sensor 9 is used for detecting the hydrogen pressure in the surge tank 6 in real time, in this scheme, the pressure sensor 9 may be disposed inside or at an outlet of the surge tank 6, or may be disposed on the hydrogen supply pipeline 2 between the surge tank 6 and the fuel cell system 7, preferably, the pressure sensor 9 is disposed on the hydrogen supply pipeline 2 between the surge tank 6 and the fuel cell system 7, and can also detect the hydrogen pressure value of the surge tank 6.
Preferably, the hydrogen supply line 2 is provided with a first check valve 3 between the solid-state hydrogen storage system 1 and the booster pump 4. The first one-way valve 3 allows the hydrogen of the hydrogen supply pipeline 2 to be communicated in a one-way mode from the gas outlet of the solid-state hydrogen storage system 1 to the booster pump 4, so that the protection effect is achieved, and the high-pressure hydrogen is prevented from flowing back to damage the upstream solid-state hydrogen storage system 1.
Preferably, the hydrogen supply pipeline 2 is provided with a second check valve 5 between the booster pump 4 and the surge tank 6. The second one-way valve 5 allows the hydrogen in the hydrogen supply pipeline 2 to be communicated in one way from the booster pump 4 to the pressure stabilizing bottle 6, and also plays a role in protection.
As shown in fig. 1, the controller 8 is in communication connection with the pressure sensor 9, the booster pump 4 and the fuel cell system 7 through a wire harness (shown by a dotted line in fig. 1), the controller 8 may be a single chip microcomputer controller or a PLC controller, or may be a vehicle controller of the vehicle itself, and the controller 8 is configured to collect a pressure signal of the pressure sensor 9 and an output power signal of the fuel cell system 7, and is capable of formulating a hydrogen supply control strategy according to the collected pressure value and output power, and controlling on and off of the booster pump 4. For example, if the fuel cell system 7 can stably output the output power which is greater than or equal to the rated power when the pressure stabilizing bottle 6 supplies hydrogen to the fuel cell system 7 at the pressure of 1.3-2 MPa, the controller 8 continues to acquire the pressure signal of the pressure sensor 9 through the wiring harness, and monitors the pressure fluctuation of the hydrogen in the pressure stabilizing bottle 6 in real time; when the hydrogen pressure of the pressure stabilizing bottle 6 is lower than 1.3MPa, the controller 8 controls the booster pump 4 to start to work through the wiring harness, monitors the hydrogen pressure of the pressure stabilizing bottle 6 in real time, and when the hydrogen pressure of the pressure stabilizing bottle 6 reaches 2MPa, the controller 8 closes the booster pump 4 through the wiring harness to form a closed-loop control strategy. The controller 8 may be integrally provided in the fuel cell system 7 through a wire harness.
The invention also provides a hydrogen supply method, which is applied to the solid hydrogen storage and supply device and comprises the following steps:
acquiring the pressure value of a pressure stabilizing bottle 6 and the output power of a fuel cell system 7;
judging whether the output power is greater than or equal to the rated power, if so, returning to the previous step; if not, the next step is carried out:
and judging whether the pressure value is smaller than the lower pressure limit value or not, if so, controlling the booster pump 4 to be started, acquiring the pressure value of the pressure stabilizing bottle 6 in real time, closing the booster pump 4 until the pressure value is larger than or equal to the upper pressure limit value, and returning to the first step.
Preferably, in the step of judging whether the pressure value is smaller than the lower pressure limit value, if the judgment result is negative, an alarm signal is sent out.
Referring to fig. 2, fig. 2 is a flow chart of a hydrogen supply method in an embodiment of the invention, specifically, the hydrogen supply method includes the following steps:
s1: acquiring the pressure value of a pressure stabilizing bottle 6 and the output power of a fuel cell system 7;
s2: judging whether the output power is larger than or equal to the rated power, if so, returning to the previous step S1; if not, proceed to the next step S3:
s3: judging whether the pressure value is smaller than the lower pressure limit value, if so, entering the next step S4; if not, the system is judged to have a fault, and then the step S7 is carried out, an alarm signal is sent out, and a user is reminded to check the fault in time;
s4: controlling the booster pump 4 to be started, acquiring the pressure value of the pressure stabilizing bottle 6 in real time, and entering step S5;
s5: judging whether the pressure value is greater than or equal to the upper pressure limit value, if so, entering the step S6; if not, returning to the previous step S4 to continue supercharging;
s6: the booster pump 4 is turned off.
The invention carries out real-time pressurization at the rear end of an air outlet of a solid hydrogen storage system 1, stores hydrogen in a pressure stabilizing bottle 6, directly provides hydrogen for a fuel cell system 7 at high pressure and high flow rate by the pressure stabilizing bottle 6, sets a control strategy according to the requirement of the output power of the fuel cell system 7 on the hydrogen pressure, detects the hydrogen pressure in the pressure stabilizing bottle 6 in real time, controls a booster pump 4 to start to work when the hydrogen pressure in the pressure stabilizing bottle 6 is lower than a lower limit value, and controls the booster pump 4 to close when the hydrogen pressure in the pressure stabilizing bottle 6 reaches an upper limit value, thereby forming closed-loop control. So that the pressure stabilizing bottle 6 can continuously and stably provide hydrogen for the fuel cell system 7 in a certain pressure range, and the requirement of high power output of the fuel cell system 7 is met.
Therefore, the invention performs real-time pressurization on the hydrogen supply tail end of the solid-state hydrogen storage system 1, realizes stable high-pressure and high-flow hydrogen supply, timely responds to the high-power operation of the fuel cell system 7, effectively solves the defects of low hydrogen supply pressure, low flow, instability and the like of the solid-state hydrogen storage system, meets the requirement of high-power stable operation of fuel cell systems of medium and heavy trucks, buses and the like, and enables the solid-state hydrogen storage system to be widely applied to medium and heavy transportation industries.
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. A solid state hydrogen storage and supply apparatus, comprising: hydrogen supply pipeline, booster pump, surge tank, pressure sensor, controller, wherein, the entry end of hydrogen supply pipeline is connected in solid-state hydrogen storage system and exit end and is connected in the fuel cell system, the booster pump with the surge tank along the direction of admitting air in proper order concatenate in the hydrogen supply pipeline, pressure sensor is used for detecting the hydrogen pressure of surge tank, the controller respectively with pressure sensor the booster pump with fuel cell system communication connection, the controller can be based on the pressure value that pressure sensor detected and fuel cell system's output power control opening and closing of booster pump.
2. The solid state hydrogen storage and supply apparatus of claim 1, wherein the pressure sensor is disposed in the hydrogen supply line between the surge tank and the fuel cell system.
3. The solid-state hydrogen storage and supply apparatus according to claim 1, wherein the hydrogen supply line is provided with a first check valve between the solid-state hydrogen storage system and the booster pump.
4. The solid-state hydrogen storage and supply device according to claim 1, wherein the hydrogen supply line is provided with a second check valve between the booster pump and the surge tank.
5. A hydrogen supply method, applied to the solid-state hydrogen storage and supply device according to any one of claims 1 to 4, comprising the steps of:
acquiring a pressure value of a pressure stabilizing bottle and the output power of a fuel cell system;
judging whether the output power is greater than or equal to the rated power, if so, returning to the previous step; if not, the next step is carried out:
and judging whether the pressure value is smaller than a lower pressure limit value or not, if so, controlling the booster pump to be started, acquiring the pressure value of the pressure stabilizing bottle in real time, closing the booster pump until the pressure value is larger than or equal to an upper pressure limit value, and returning to the first step.
6. The hydrogen supply method according to claim 5, wherein in the step of judging whether the pressure value is less than the lower pressure limit value, if not, an alarm signal is issued.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210360449.3A CN114665128B (en) | 2022-04-07 | 2022-04-07 | Solid-state hydrogen storage and supply device and hydrogen supply method |
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| CN202210360449.3A CN114665128B (en) | 2022-04-07 | 2022-04-07 | Solid-state hydrogen storage and supply device and hydrogen supply method |
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| CN114665128A true CN114665128A (en) | 2022-06-24 |
| CN114665128B CN114665128B (en) | 2023-12-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115654372A (en) * | 2022-10-19 | 2023-01-31 | 广东工业大学 | Solid-state hydrogen storage and delivery pipeline system and control method thereof |
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| CN115654372B (en) * | 2022-10-19 | 2024-04-12 | 广东工业大学 | Solid-state hydrogen storage and transportation pipeline system and control method thereof |
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| Publication number | Publication date |
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| CN114665128B (en) | 2023-12-19 |
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