Coupling system of hydrogen production and hydrogenation device and solid hydrogen storage type fuel cell device

Abstract

The invention discloses a hydrogen production and hydrogenation device and solid-state hydrogen storage type fuel cell device coupling system, which comprises a hydrogen production and hydrogenation device and a solid-state hydrogen storage type fuel cell device, the hydrogen production and hydrogenation device comprises a solar photovoltaic panel, a storage battery, an electrolysis mechanism, a heater and a first solid-state hydrogen storage module, the solar photovoltaic panel is connected with the storage battery, and the storage battery is connected with the electrolysis mechanism. The storage battery is connected with the electrolysis mechanism and the heater so as to supply power, the electrolysis mechanism is used for producing hydrogen and filling the hydrogen into the first solid hydrogen storage module for storage, and the heater is used for heating the first solid hydrogen storage module so as to improve the hydrogen storage pressure of the first solid hydrogen storage module; and the first solid hydrogen storage module is used for hydrogenating the solid hydrogen storage type fuel cell device. The system has the advantages of being simple in structure, low in cost and good in convenience.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen energy storage and supply, and particularly to a coupling system of a hydrogen production and hydrogenation device and a solid-state hydrogen storage fuel cell device. Background Art

[0002] As a clean energy carrier, hydrogen has been widely used in fuel cell vehicles due to its advantages of high efficiency, cleanliness, and zero emissions. Currently, hydrogen fuel cell vehicles mainly use high-pressure hydrogen storage cylinders as hydrogen storage devices, with a working pressure as high as over 35 MPa, posing a high safety risk. At the same time, due to the very low density of hydrogen, the volume of high-pressure hydrogen storage cylinders is relatively large. In addition, there is also cryogenic liquid storage for hydrogen, but the liquefaction process of hydrogen consumes a large amount of energy, and to maintain the liquid state of hydrogen, a low temperature of -253°C needs to be maintained, which is difficult to insulate, and there is a large vaporization loss during hydrogen storage.

[0003] Based on the above problems, some enterprises, considering the hydrogen absorption ability of some metal solid materials under certain temperature and pressure conditions, use solid-state hydrogen storage materials for hydrogen storage. This has the characteristics of a low working pressure and a small volume of the solid-state hydrogen storage cylinder compared with compressed hydrogen storage; compared with liquid hydrogen storage, the working temperature of the solid-state hydrogen storage cylinder is close to room temperature.

[0004] Chinese Patent with Publication No. CN215259206U provides a solid-state hydrogen storage, transportation, and hydrogenation device, including a solid-state hydrogen storage tank, an oil guide pipe, a return oil pipe, a hydrogen transmission pipe, an organic heat carrier furnace, a circulation pump, a hydrogen compressor, a high-pressure hydrogen storage component, and a hydrogenation machine. This hydrogenation device stores hydrogen by filling the solid-state hydrogen storage material in the hydrogen storage tank and uses a hydrogen compressor and a high-pressure hydrogen storage component to increase the hydrogen storage pressure, but the hydrogen compressor still consumes a large amount of energy and has a high cost.

[0005] Chinese Patent with Publication No. CN214093991U discloses a vehicle-mounted solid-state hydrogen storage and supply system, which relates to the technical field of hydrogen energy storage and supply. It includes a hydrogen storage container, a hydrogen filling system, a hydrogen supply system, a cooling system, and a heating system; a solid-state metal material with hydrogen absorption ability is arranged in the hydrogen storage container. When the fuel cell has a hydrogen demand, the heating system is used to heat the hydrogen storage container, so that the solid material in the hydrogen storage container releases hydrogen and supplies it to the vehicle fuel cell system through the hydrogen supply system. This patent uses the entire hydrogen storage container, and the entire process requires heating the hydrogen storage container using the heating system, consuming a large amount of energy and having a high cost. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a coupling system of a hydrogen production and hydrogenation device and a solid-state hydrogen storage fuel cell device with a simple structure, low cost, and good convenience.

[0007] To solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A coupling system of a hydrogen production and hydrogenation device and a solid-state hydrogen storage fuel cell device, comprising a hydrogen production and hydrogenation device and a solid-state hydrogen storage fuel cell device. The hydrogen production and hydrogenation device includes a solar photovoltaic panel, a storage battery, an electrolysis mechanism, a heater, and a first solid-state hydrogen storage module. The solar photovoltaic panel is connected to the storage battery, and the storage battery is respectively connected to the electrolysis mechanism and the heater for power supply. The electrolysis mechanism is used for hydrogen production and charging the hydrogen into the first solid-state hydrogen storage module for storage. The heater is used for heating the first solid-state hydrogen storage module to increase the hydrogen storage pressure of the first solid-state hydrogen storage module. The first solid-state hydrogen storage module is used for hydrogen addition to the solid-state hydrogen storage fuel cell device.

[0009] As a further improvement of the above technical solution:

[0010] The solid-state hydrogen storage fuel cell device includes a fuel cell, a second solid-state hydrogen storage module, and a heat exchange module. The second solid-state hydrogen storage module is used for receiving the hydrogen added by the first solid-state hydrogen storage module and supplying hydrogen to the fuel cell. The heat exchange module is used for cooling the fuel cell and transferring heat to the second solid-state hydrogen storage module.

[0011] The heat exchange module includes a heat exchanger and a water supply assembly. The first fluid outlet of the heat exchanger, the heat exchange tube of the second solid-state hydrogen storage module, the water supply assembly, the heat exchange tube of the fuel cell, and the first fluid inlet of the heat exchanger are sequentially connected to form a first fluid loop.

[0012] The second fluid outlet of the heat exchanger, the heat exchange tube of the second solid-state hydrogen storage module, and the second fluid inlet of the heat exchanger are sequentially connected to form a second fluid loop.

[0013] The heat exchange module further includes a first pipeline, a second pipeline, a third pipeline, and a fourth pipeline. The first pipeline is connected between the first fluid outlet of the heat exchanger and the inlet of the heat exchange tube of the second solid-state hydrogen storage module. The second pipeline is connected between the second fluid outlet of the heat exchanger and the inlet of the heat exchange tube of the second solid-state hydrogen storage module. The third pipeline is connected between the outlet of the heat exchange tube of the second solid-state hydrogen storage module and the water supply assembly. The fourth pipeline is connected between the outlet of the heat exchange tube of the second solid-state hydrogen storage module and the second fluid inlet of the heat exchanger. Flow control valves are respectively provided on the first pipeline, the second pipeline, the third pipeline, and the fourth pipeline.

[0014] Circulation pumps are also provided on the first pipeline and the second pipeline.

[0015] The water supply assembly includes a chiller, a first water pump, a heat preservation water tank, and a second water pump connected in sequence. The chiller is connected to the outlet of the heat exchange tube of the second solid-state hydrogen storage module, and the second water pump is connected to the inlet of the heat exchange tube of the fuel cell.

[0016] The first solid-state hydrogen storage module is detachably connected to the second solid-state hydrogen storage module through a hydrogen pipeline, and a stop valve and a cooler are provided on the first hydrogen pipeline.

[0017] A pressure booster is provided between the electrolysis mechanism and the first solid-state hydrogen storage module.

[0018] The hydrogen production and hydrogenation device further includes a heat storage liquid tank. The first solid-state hydrogen storage module is arranged in the heat storage liquid tank, and the heater is used to heat the liquid in the heat storage liquid tank.

[0019] Compared with the prior art, the advantages of the present invention are as follows:

[0020] 1. In the coupling system of the hydrogen production and hydrogenation device and the solid-state hydrogen storage fuel cell device of the present invention, hydrogen is produced by using photovoltaic power generation, and the surplus power of the hydrogen production by photovoltaic power generation is used to heat the first solid-state hydrogen storage module to increase the hydrogen storage pressure of the first solid-state hydrogen storage module, which can reduce the use of external power by the compressor and the heating system, with a simple structure and low cost; by adopting the operation mode of combining the hydrogen production and hydrogenation device with the solid-state hydrogen storage fuel cell device, the hydrogenation of equipment such as vehicles can be made more convenient, with good convenience.

[0021] 2. In the coupling system of the hydrogen production and hydrogenation device and the solid-state hydrogen storage fuel cell device of the present invention, on the one hand, the heat exchange module can cool the fuel cell, maintain the optimal working temperature of the fuel cell, improve the working efficiency of the fuel cell, and extend the service life; on the other hand, the heat exchange module can absorb the heat released by the fuel cell reaction and transfer the absorbed heat to the second solid-state hydrogen storage module to heat the second solid-state hydrogen storage module, preventing the second solid-state hydrogen storage module from absorbing heat during hydrogen supply and reducing the hydrogen supply rate due to temperature reduction, improving the hydrogen supply stability of the second solid-state hydrogen storage module and maintaining the temperature stability of the fuel cell, thereby enhancing the response speed of the fuel cell and the safety of equipment such as vehicles.

[0022] 3. In the coupling system of the hydrogen production and hydrogenation device and the solid-state hydrogen storage fuel cell device of the present invention, through the circulation of the first fluid in the first fluid circuit, the first fluid after cooling the fuel cell can continue to heat the second solid-state hydrogen storage module, efficiently utilizing the heat dissipated by the fuel cell, reducing energy loss, and having high energy utilization rate.

[0023] 4. In the coupling system of the hydrogen production and hydrogenation device and the solid-state hydrogen storage fuel cell device of the present invention, through the circulation of the second fluid in the second fluid circuit, the second fluid after heat exchange through the heat exchanger can also heat the second solid-state hydrogen storage module, with higher energy utilization rate.

[0024] 5. The hydrogen production and hydrogenation device of the present invention and the coupling system with the solid-state hydrogen storage fuel cell device adjust the opening degrees of the flow control valves on the first pipeline and the second pipeline to regulate the ratio of the first fluid and the second fluid flowing into the second solid-state hydrogen storage module. By adjusting the opening degrees of the flow control valves on the third pipeline and the fourth pipeline, the ratio of the fluid flowing out of the second solid-state hydrogen storage module to the heat exchanger and the water supply assembly is regulated, thereby accurately controlling the temperature of the fluid entering the second solid-state hydrogen storage module. This can avoid phenomena such as overheating of the fluid and thermal runaway, and has better safety. It also avoids the reduction of the hydrogen supply stability of the second solid-state hydrogen storage module due to too low fluid temperature. Description of the Drawings

[0025] Figure 1 is a schematic diagram of the coupling system of the hydrogen production and hydrogenation device of the present invention and the solid-state hydrogen storage fuel cell device.

[0026] Figure 2 is an enlarged view of the heat exchange module in the coupling system of the hydrogen production and hydrogenation device of the present invention and the solid-state hydrogen storage fuel cell device.

[0027] Figure 3 is a structural schematic diagram of the first solid-state hydrogen storage module and its associated components in the coupling system of the hydrogen production and hydrogenation device of the present invention and the solid-state hydrogen storage fuel cell device.

[0028] In the figure, each reference numeral represents: 1. Hydrogen production and hydrogenation device; 11. Solar photovoltaic panel; 12. Storage battery; 13. Electrolysis mechanism; 14. Heater; 15. First solid-state hydrogen storage module; 16. Pressurizer; 17. Thermal energy storage liquid tank; 2. Solid-state hydrogen storage fuel cell device; 21. Fuel cell; 22. Second solid-state hydrogen storage module; 23. Heat exchange module; 231. Heat exchanger; 232. Water supply assembly; 2321. Chiller; 2322. First water pump; 2323. Heat preservation water tank; 2324. Second water pump; 233. First fluid circuit; 234. Second fluid circuit; 241. First pipeline; 242. Second pipeline; 243. Third pipeline; 244. Fourth pipeline; 245. Flow control valve; 246. Circulation pump; 3. Hydrogen pipeline; 31. Globe valve; 32. Cooler. Detailed Embodiments

[0029] The following will further describe the present invention in detail with reference to the drawings of the specification and specific embodiments.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0032] In the present invention, unless otherwise clearly defined and limited, the terms "assembled", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] As Figures 1 to 3 shown, the hydrogen production and hydrogenation device and the solid-state hydrogen storage fuel cell device coupling system of this embodiment include a hydrogen production and hydrogenation device 1 and a solid-state hydrogen storage fuel cell device 2. The hydrogen production and hydrogenation device 1 includes a solar photovoltaic panel 11, a storage battery 12, an electrolysis mechanism 13, a heater 14, and a first solid-state hydrogen storage module 15. The solar photovoltaic panel 11 is connected to the storage battery 12, and the storage battery 12 is respectively connected to the electrolysis mechanism 13 and the heater 14 for power supply. The electrolysis mechanism 13 is used for hydrogen production and charging into the first solid-state hydrogen storage module 15 for storage. The heater 14 is used for heating the first solid-state hydrogen storage module 15 to increase the hydrogen storage pressure of the first solid-state hydrogen storage module 15. The first solid-state hydrogen storage module 15 is used for hydrogenation to the solid-state hydrogen storage fuel cell device 2.

[0034] The hydrogen production and hydrogenation device of this embodiment is coupled with a solid-state hydrogen storage fuel cell device. The hydrogen production and hydrogenation device 1 is used for ground equipment, and the solid-state hydrogen storage fuel cell device 2 is used for equipment such as vehicles. When in use, the solar photovoltaic panel 11 in the hydrogen production and hydrogenation device 1 converts solar energy into electrical energy and stores it in the storage battery 12. The storage battery 12 supplies power to the electrolysis mechanism 13 and the heater 14 respectively. The electrolysis mechanism 13 electrolyzes water to generate hydrogen and fills the hydrogen into the first solid-state hydrogen storage module 15 for storage. When it is necessary for the first solid-state hydrogen storage module 15 to supply hydrogen to the solid-state hydrogen storage fuel cell device 2, the heater 14 heats the first solid-state hydrogen storage module 15 to increase the hydrogen storage pressure of the first solid-state hydrogen storage module 15 to meet the pressure requirement for the first solid-state hydrogen storage module 15 to supply hydrogen to the solid-state hydrogen storage fuel cell device 2. After the hydrogen supply is completed, equipment such as vehicles can be driven by the solid-state hydrogen storage fuel cell device 2. The coupled system of the hydrogen production and hydrogenation device and the solid-state hydrogen storage fuel cell device of this embodiment uses photovoltaic power generation to produce hydrogen and uses the surplus power of photovoltaic hydrogen production to heat the first solid-state hydrogen storage module 15 to increase the hydrogen storage pressure of the first solid-state hydrogen storage module 15, which can reduce the use of external power by compressors and heating systems, has a simple structure and low cost; by adopting the operation mode of combining the hydrogen production and hydrogenation device 1 with the solid-state hydrogen storage fuel cell device 2, the hydrogen supply for equipment such as vehicles can be made more convenient, and the convenience is good.

[0035] Furthermore, in this embodiment, the solid-state hydrogen storage fuel cell device 2 includes a fuel cell 21, a second solid-state hydrogen storage module 22, and a heat exchange module 23. The second solid-state hydrogen storage module 22 is used to receive the hydrogen added by the first solid-state hydrogen storage module 15 and supply hydrogen to the fuel cell 21. The heat exchange module 23 is used to cool the fuel cell 21 and transfer heat to the second solid-state hydrogen storage module 22. When equipment such as vehicles is running, the first solid-state hydrogen storage module 15 storing hydrogen supplies hydrogen to the second solid-state hydrogen storage module 22. After the hydrogen supply is completed, the second solid-state hydrogen storage module 22 supplies hydrogen to the fuel cell 21, and the fuel cell 21 reacts to provide power for equipment such as vehicles, and then equipment such as vehicles can run. During this process, on the one hand, the heat exchange module 23 can cool the fuel cell 21 to maintain the optimal working temperature of the fuel cell 21, improve the working efficiency of the fuel cell 21, and extend its service life; on the other hand, the heat exchange module 23 can absorb the heat released by the reaction of the fuel cell 21 and transfer the absorbed heat to the second solid-state hydrogen storage module 22 to heat the second solid-state hydrogen storage module 22, preventing the second solid-state hydrogen storage module 22 from absorbing heat during hydrogen supply and causing the temperature to decrease, resulting in a decrease in the hydrogen supply rate, improving the hydrogen supply stability of the second solid-state hydrogen storage module 22 and maintaining the temperature stability of the fuel cell 21, thereby enhancing the response speed of the fuel cell 21 and the safety of equipment such as vehicles.

[0036] Further, in this embodiment, the first solid hydrogen storage module 15 is detachably connected to the second solid hydrogen storage module 22 through a hydrogen pipeline 3. A stop valve 31 and a cooler 32 are provided on the first hydrogen pipeline 3. During the hydrogenation process, the first solid hydrogen storage module 15 is connected to the second solid hydrogen storage module 22 through the hydrogen pipeline 3. The stop valve 31 is opened, and the cooler 32 is used to cool the hydrogen gas to realize the hydrogenation of the second solid hydrogen storage module 22. After the hydrogenation is completed, the connection between the first solid hydrogen storage module 15 and the second solid hydrogen storage module 22 is disconnected, and equipment such as vehicles can run, which is more convenient.

[0037] Further, in this embodiment, the heat exchange module 23 includes a heat exchanger 231 and a water supply assembly 232. The first fluid outlet of the heat exchanger 231, the heat exchange tubes of the second solid hydrogen storage module 22, the water supply assembly 232, the heat exchange tubes of the fuel cell 21, and the first fluid inlet of the heat exchanger 231 are sequentially connected to form a first fluid circuit 233. When equipment such as vehicles is running, the fuel cell 21 reacts to provide power for the equipment such as vehicles. Due to the energy conversion characteristics of the electrochemical reaction, the fuel cell 21 generates heat. The water supply assembly 232 provides the first fluid, which flows through the fuel cell 21 to cool the fuel cell 21. The first fluid (80 ± 5 °C) after absorbing the heat of the fuel cell 21 then flows through the heat exchanger 231 and is cooled by the second fluid. The cooled first fluid (65 ± 5 °C) then flows through the second solid hydrogen storage module 22 to heat the second solid hydrogen storage module 22 (the heating temperature requirement of the second solid hydrogen storage module 22 is 65 ± 5 °C). The first fluid (40 ± 5 °C) after heating the second solid hydrogen storage module 22 then returns to the water supply assembly 232 for the next cycle. By circulating the first fluid in the first fluid circuit 233, the first fluid cooled by the fuel cell 21 can continue to heat the second solid hydrogen storage module 22, efficiently utilizing the heat dissipated by the fuel cell 21, reducing energy loss, and having a high energy utilization rate.

[0038] It should be noted that in this embodiment, the second solid hydrogen storage module 22 and the fuel cell 21 are conventional solid hydrogen storage modules and fuel cells integrated with heat exchange tubes. Heat exchange tubes are integrated on the inside or outer wall of the second solid hydrogen storage module 22 and the fuel cell 21, and the heat exchange tubes can allow fluids to pass through for heating or cooling.

[0039] Further, in this embodiment, the second fluid outlet of the heat exchanger 231, the heat exchange tubes of the second solid-state hydrogen storage module 22, and the second fluid inlet of the heat exchanger 231 are sequentially connected to form a second fluid circuit 234. When equipment such as a vehicle is operating, the second fluid flows into the heat exchanger 231 from the second fluid inlet and out from the second fluid outlet. The second fluid exchanges heat with the first fluid in the heat exchanger 231 to increase in temperature. The heated second fluid (65 ± 5 °C) then flows through the second solid-state hydrogen storage module 22 to heat the second solid-state hydrogen storage module 22. The second fluid (40 ± 5 °C) after heating the second solid-state hydrogen storage module 22 then returns to the second fluid inlet of the heat exchanger 231 for the next cycle. By circulating the second fluid in the second fluid circuit 234, the second fluid that has exchanged heat in the heat exchanger 231 can also heat the second solid-state hydrogen storage module 22, resulting in higher energy utilization efficiency.

[0040] It should be noted that in this embodiment, since both the first fluid and the second fluid pass through the heat exchange tubes of the second solid-state hydrogen storage module 22 to heat the second solid-state hydrogen storage module 22, that is, the first fluid and the second fluid converge in the heat exchange tubes of the second solid-state hydrogen storage module 22, and the first fluid and the second fluid are the same fluid (such as cooling water, etc.), the structure is simple and it is convenient for fluid management. Of course, in other embodiments, the second solid-state hydrogen storage module 22 can be provided with two different heat exchange tubes to realize heat exchange between two different fluids.

[0041] Further, in this embodiment, the heat exchange module 23 further includes a first pipeline 241, a second pipeline 242, a third pipeline 243, and a fourth pipeline 244. The first pipeline 241 is connected between the first fluid outlet of the heat exchanger 231 and the inlet of the heat exchange tubes of the second solid-state hydrogen storage module 22. The second pipeline 242 is connected between the second fluid outlet of the heat exchanger 231 and the inlet of the heat exchange tubes of the second solid-state hydrogen storage module 22. The third pipeline 243 is connected between the outlet of the heat exchange tubes of the second solid-state hydrogen storage module 22 and the water supply assembly 232. The fourth pipeline 244 is connected between the outlet of the heat exchange tubes of the second solid-state hydrogen storage module 22 and the second fluid inlet of the heat exchanger 231. Flow control valves 245 are respectively provided on the first pipeline 241, the second pipeline 242, the third pipeline 243, and the fourth pipeline 244. By adjusting the opening degrees of the flow control valves 245 (such as solenoid valves, etc.) on the first pipeline 241 and the second pipeline 242, the ratio of the first fluid and the second fluid flowing into the second solid-state hydrogen storage module 22 is adjusted. By adjusting the opening degrees of the flow control valves 245 on the third pipeline 243 and the fourth pipeline 244, the ratio of the fluid flowing out of the second solid-state hydrogen storage module 22 to the heat exchanger 231 and the water supply assembly 232 is adjusted, thereby precisely controlling the temperature of the fluid entering the second solid-state hydrogen storage module 22, being able to avoid phenomena such as the fluid temperature being too high and thermal runaway, having better safety, and avoiding the fluid temperature being too low, which may lead to a decrease in the hydrogen supply stability of the second solid-state hydrogen storage module 22.

[0042] Further, in this embodiment, a circulation pump 246 is also provided on the first pipeline 241 and the second pipeline 242. The circulation pump 246 can push the fluid to flow in the first pipeline 241 and the second pipeline 242, with a simple and reliable structure.

[0043] Further, in this embodiment, the water supply assembly 232 includes a chiller 2321, a first water pump 2322, a heat preservation water tank 2323, and a second water pump 2324 connected in sequence. The chiller 2321 is connected to the heat exchange pipe outlet of the second solid-state hydrogen storage module 22, and the second water pump 2324 is connected to the heat exchange pipe inlet of the fuel cell 21. After the first fluid heated by the second solid-state hydrogen storage module 22 returns to the water supply assembly 232, it is cooled to room temperature by the chiller 2321 and then pumped into the heat preservation water tank 2323 for temporary storage by the first water pump 2322. The first fluid in the heat preservation water tank 2323 is then pumped into the heat exchange pipe of the fuel cell 21 by the second water pump 2324 to cool down the fuel cell 21, with a simple and reliable structure.

[0044] Further, in this embodiment, a pressure booster 16 is provided between the electrolysis mechanism 13 and the first solid-state hydrogen storage module 15. The pressure booster 16 can compress the hydrogen generated by the electrolysis mechanism 13 to 4-6 MPa and then enter the first solid-state hydrogen storage module 15 for storage, improving the hydrogen charging efficiency of the first solid-state hydrogen storage module 15.

[0045] Further, in this embodiment, the hydrogen production and hydrogenation device 1 further includes a heat storage liquid tank 17. The first solid-state hydrogen storage module 15 is arranged in the heat storage liquid tank 17, and the heater 14 is used to heat the liquid in the heat storage liquid tank 17. The heater 14 heats the first solid-state hydrogen storage module 15 by heating the liquid in the heat storage liquid tank 17, with good heating effect.

[0046] The above is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiment, it is not intended to limit the present invention. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above, or modify it into an equivalent embodiment with equivalent changes. Therefore, any simple modification, equivalent replacement, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A coupling system of a hydrogen production and hydrogenation device and a solid-state hydrogen storage fuel cell device, characterized in that: It includes a hydrogen production and hydrogenation device (1) and a solid-state hydrogen storage fuel cell device (2). The hydrogen production and hydrogenation device (1) includes a solar photovoltaic panel (11), a storage battery (12), an electrolysis mechanism (13), a heater (14) and a first solid-state hydrogen storage module (15). The solar photovoltaic panel (11) is connected to the storage battery (12), and the storage battery (12) is respectively connected to the electrolysis mechanism (13) and the heater (14) for power supply. The electrolysis mechanism (13) is used for hydrogen production and charging the hydrogen into the first solid-state hydrogen storage module (15) for storage. The heater (14) is used for heating the first solid-state hydrogen storage module (15) to increase the hydrogen storage pressure of the first solid-state hydrogen storage module (15). The first solid-state hydrogen storage module (15) is used for hydrogen addition to the solid-state hydrogen storage fuel cell device (2).

2. The hydrogen production and hydrogenation device and solid-state hydrogen storage fuel cell device coupling system according to claim 1, wherein: The solid-state hydrogen storage fuel cell device (2) includes a fuel cell (21), a second solid-state hydrogen storage module (22) and a heat exchange module (23). The second solid-state hydrogen storage module (22) is used for receiving the hydrogen added by the first solid-state hydrogen storage module (15) and supplying hydrogen to the fuel cell (21). The heat exchange module (23) is used for cooling the fuel cell (21) and transferring heat to the second solid-state hydrogen storage module (22).

3. The hydrogen production and hydrogenation device and solid-state hydrogen storage fuel cell device coupling system according to claim 2, wherein: The heat exchange module (23) includes a heat exchanger (231) and a water supply assembly (232). The first fluid outlet of the heat exchanger (231), the heat exchange tube of the second solid-state hydrogen storage module (22), the water supply assembly (232), the heat exchange tube of the fuel cell (21) and the first fluid inlet of the heat exchanger (231) are sequentially connected to form a first fluid circuit (233).

4. The hydrogen production and hydrogenation device and solid-state hydrogen storage fuel cell device coupling system according to claim 3, wherein: The second fluid outlet of the heat exchanger (231), the heat exchange tube of the second solid-state hydrogen storage module (22) and the second fluid inlet of the heat exchanger (231) are sequentially connected to form a second fluid circuit (234).

5. The hydrogen production and hydrogenation device and solid-state hydrogen storage fuel cell device coupling system according to claim 4, characterized in that: The heat exchange module (23) further includes a first pipeline (241), a second pipeline (242), a third pipeline (243) and a fourth pipeline (244). The first pipeline (241) is connected between the first fluid outlet of the heat exchanger (231) and the inlet of the heat exchange tube of the second solid-state hydrogen storage module (22). The second pipeline (242) is connected between the second fluid outlet of the heat exchanger (231) and the inlet of the heat exchange tube of the second solid-state hydrogen storage module (22). The third pipeline (243) is connected between the outlet of the heat exchange tube of the second solid-state hydrogen storage module (22) and the water supply assembly (232). The fourth pipeline (244) is connected between the outlet of the heat exchange tube of the second solid-state hydrogen storage module (22) and the second fluid inlet of the heat exchanger (231). Flow control valves (245) are respectively provided on the first pipeline (241), the second pipeline (242), the third pipeline (243) and the fourth pipeline (244).

6. The hydrogen production and hydrogenation device and solid-state hydrogen storage fuel cell device coupling system according to claim 5, wherein: Circulation pumps (246) are also provided on the first pipeline (241) and the second pipeline (242).

7. The hydrogen production and hydrogenation device and solid-state hydrogen storage fuel cell device coupling system according to claim 3, characterized in that: The water supply component (232) includes a chiller (2321), a first water pump (2322), a heat preservation water tank (2323), and a second water pump (2324) that are connected in sequence. The chiller (2321) is connected to the outlet of the heat exchange pipe of the second solid-state hydrogen storage module (22), and the second water pump (2324) is connected to the inlet of the heat exchange pipe of the fuel cell (21).

8. The hydrogen production and hydrogenation device and solid-state hydrogen storage fuel cell device coupling system according to claim 2, characterized in that: The first solid-state hydrogen storage module (15) is detachably connected to the second solid-state hydrogen storage module (22) through a hydrogen pipeline (3). A stop valve (31) and a cooler (32) are provided on the first hydrogen pipeline (3).

9. The hydrogen production and hydrogenation device and solid-state hydrogen storage fuel cell device coupling system according to claim 1, wherein: A pressure booster (16) is provided between the electrolysis mechanism (13) and the first solid-state hydrogen storage module (15).

10. The hydrogen production and hydrogenation device and the solid-state hydrogen storage fuel cell device coupling system according to any one of claims 1 to 9, characterized in that: The hydrogen production and hydrogenation device (1) further includes a heat storage liquid tank (17). The first solid-state hydrogen storage module (15) is arranged in the heat storage liquid tank (17), and the heater (14) is used to heat the liquid in the heat storage liquid tank (17).

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