Hydrogen fuel cell power system based on solid state hydrogen storage

Abstract

The utility model relates to hydrogen fuel cell power generation system based on solid hydrogen storage, including frame, frame is divided into two layers, hydrogen area located top layer is equipped with solid hydrogen storage module and fuel cell module of parallel arrangement, electrical area located bottom layer is equipped with heat dissipation module, DCDC module and energy storage battery module, two layers area between through sealing plate realizes sealed insulation, solid hydrogen storage module includes the box body of swing joint in frame, the inside of box body is equipped with multiple solid hydrogen storage alloy gas cylinder of array arrangement, solid hydrogen storage alloy gas cylinder includes gas cylinder body and hydrogen storage alloy bed located gas cylinder inside. Apply solid hydrogen storage technology to hydrogen fuel cell power generation system, reduce hydrogen filling and storage pressure, improve hydrogen utilization safety, and on this basis designed the highly integrated 'hydrogen - electricity partition' type hydrogen fuel cell power generation system, reduce the floor area of system, strengthened the intrinsic safety of system, improved power generation system space utilization.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen fuel cell technology, specifically to a hydrogen fuel cell power generation system based on solid-state hydrogen storage. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] Currently, hydrogen storage in hydrogen fuel cell power generation systems is all high-pressure gaseous hydrogen storage. The overall system design is complex, occupies a large area, and the circuit and gas connections of each module are quite complicated. The overall safety of the power generation system is low, disassembly and assembly are complicated, and replacement is difficult. The system reliability and maintainability are poor. In addition, high-pressure hydrogen refueling is difficult, making it difficult to carry out large-scale construction in areas far from hydrogen refueling stations. Utility Model Content

[0004] To address the technical problems mentioned above, this invention provides a hydrogen fuel cell power generation system based on solid-state hydrogen storage. By applying solid-state hydrogen storage technology to the hydrogen fuel cell power generation system, the pressure of hydrogen refueling and storage is reduced, fundamentally improving the safety of hydrogen utilization. Furthermore, a highly integrated "hydrogen-electricity partitioned" hydrogen fuel cell power generation system is designed, which reduces the footprint of the power generation system, enhances the intrinsic safety of the system, and improves the space utilization rate of the power generation system.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: This utility model provides a hydrogen fuel cell power generation system based on solid hydrogen storage, including a frame. The frame is divided into upper and lower layers. The hydrogen area on the upper layer is provided with a solid hydrogen storage module and a fuel cell module arranged in parallel. The electrical area on the lower layer is provided with a heat dissipation module, a DC-DC module and an energy storage battery module. The upper and lower layers are sealed and isolated by a sealing plate. The solid hydrogen storage module includes a box movably connected to a frame. Inside the box are multiple solid hydrogen storage alloy cylinders arranged in an array. Each solid hydrogen storage alloy cylinder includes a cylinder body and a hydrogen storage alloy bed located inside the cylinder.

[0006] Furthermore, the hydrogen released by the solid-state hydrogen storage module is sent to the fuel cell module through pipelines, and the generated electricity is sent to the energy storage battery module, or used to provide power to the outside world through the DC-DC module.

[0007] Furthermore, the energy storage battery module has a charging interface and a discharging interface. The charging interface is used to connect to the fuel cell module or an external power source for charging, while the discharging interface provides external power through the DC-DC module.

[0008] Furthermore, the solid-state hydrogen storage module, fuel cell module, heat dissipation module, DC-DC module, and energy storage battery module all have a housing that is movably connected to the frame. The bottom of the housing is equipped with rollers that roll along the track, forming a "drawer" type structure.

[0009] Furthermore, the top of the enclosure is open, and the sides have openings for pipes and circuits to pass through between the modules.

[0010] Furthermore, there are multiple solid hydrogen storage alloy cylinders, each of which has a cylinder valve. A set number of solid hydrogen storage alloy cylinders are connected through a hydrogen pipeline, which is connected to the fuel cell module.

[0011] Furthermore, the hydrogen storage alloy bed is equipped with heat exchange elements, which are connected to the first medium outlet of the heat exchanger and the inlet of the circulation pump through pipes. The inlet of the circulation pump is connected to the first medium inlet of the heat exchanger through a pipe, and the circulation pump drives the first heat exchange medium to circulate between the heat exchanger and the heat exchange elements.

[0012] Furthermore, the second medium inlet of the heat exchanger is connected to the cooling water inlet of the fuel cell module through a pipe, and the second medium outlet is connected to the radiator through a pipe. The radiator is connected to the cooling water return outlet of the fuel cell module through a pipe. The waste heat generated during the operation of the fuel cell module is used to heat the hydrogen storage alloy bed, causing it to release hydrogen.

[0013] Furthermore, the heat exchange element is a spiral tube / finned tube embedded in the hydrogen storage alloy bed.

[0014] Furthermore, the heat dissipation module has a fan connected to the radiator to cool the cooling water of the fuel cell module.

[0015] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects: 1. The “hydrogen-electricity partitioning” design separates the hydrogen energy components and electrical components, reducing the potential hazards of hydrogen leakage and subsequent electrical contact. The hydrogen energy components are located at the top layer of the system. In the event of a hydrogen leak, due to the low density of hydrogen, it will rise and is less likely to enter the lower electrical components and come into contact with electrical elements, thus improving the safety of the system from a structural perspective.

[0016] 2. The functional components such as hydrogen storage, fuel cell, DC-DC converter, energy storage battery and heat dissipation are modularly designed. Each module can be separated and disassembled individually, which improves the maintainability of the system and makes it easy to replace.

[0017] 3. The system's sub-modules are arranged in a "drawer-style" hardware structure, which improves the system's ease of installation and maintenance. Based on this, the hydrogen storage module can be quickly replaced, eliminating the limitations of hydrogen refueling stations and improving the utilization rate and operating efficiency of the power generation system.

[0018] 4. Solid-state hydrogen storage is used for hydrogen storage and supply. Atomic hydrogen is adsorbed using a hydrogen storage alloy bed, resulting in low system storage pressure and high safety. The overall shape of the solid-state hydrogen storage alloy cylinder can be assembled in various ways, thus achieving high system integration.

[0019] 5. During the thermal cycle, the waste heat from the operation of the fuel cell is used to heat the hydrogen storage alloy bed in the solid hydrogen storage alloy cylinder, thereby releasing hydrogen. This allows for thermal management coupling and matching between the solid hydrogen storage module and the fuel cell system, further improving the overall energy utilization efficiency of the system. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0021] Figure 1 This is a schematic diagram of the principle of a hydrogen fuel cell power generation system based on solid-state hydrogen storage provided by this utility model; Figure 2 This is a schematic diagram of the hydrogen fuel cell power generation system architecture based on solid-state hydrogen storage provided by this utility model; Figure 3 This is a schematic diagram of the structure of a hydrogen fuel cell power generation system based on solid-state hydrogen storage provided by this utility model; Figure 4 This is a schematic diagram of the frame structure of the hydrogen fuel cell power generation system based on solid-state hydrogen storage provided by this utility model. Figure 5 This is a schematic diagram of the solid-state hydrogen storage module provided by this utility model; Figure 6 This is a schematic diagram of the thermal cycle principle of the hydrogen fuel cell power generation system provided by this utility model.

[0022] In the diagram: 1. Frame; 2. Support plate; 3. Solid hydrogen storage alloy cylinder; 4. Bottle valve; 5. Solid hydrogen storage module housing; 6. Battery; 7. Energy storage battery B; 8. Battery and DC-DC module housing; 9. Energy storage battery A; 10. Energy storage battery module; 11. Fuel cell and BOP; 12. Fuel cell and its BOP module housing; 13. Fan; 14. Heat dissipation module. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0025] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0026] The meanings of the relevant terms used in this plan are as follows.

[0027] Solid-state hydrogen storage technology is a technique that stores hydrogen in a solid form through physical or chemical reactions between hydrogen and specific materials. Compared to high-pressure gaseous hydrogen storage and cryogenic liquid hydrogen storage, solid-state hydrogen storage has advantages such as high volumetric hydrogen storage density, good safety, and low energy consumption.

[0028] A hydrogen fuel cell is a device that directly converts hydrogen and oxygen into electrical energy through an electrochemical reaction. Through a continuous chemical process, hydrogen is oxidized at the anode, and oxygen from the air is reduced at the cathode. Protons are transferred between the two through an electrolyte (usually a proton exchange membrane), while an electron flow is formed in the external circuit, thereby generating an electric current.

[0029] A hydrogen fuel cell power generation system is a system that uses hydrogen fuel cell technology to produce electricity. It typically includes a hydrogen fuel cell stack, a hydrogen supply system, an air management system, a thermal management system, a control system, and auxiliary equipment.

[0030] This solution applies solid-state hydrogen storage technology to hydrogen fuel cell power generation systems, reducing the pressure of hydrogen refueling and storage, and fundamentally improving the safety of hydrogen utilization. Based on this, a highly integrated "hydrogen-electricity partitioned" hydrogen fuel cell power generation system is designed, reducing the system's footprint, enhancing its intrinsic safety, and improving space utilization. The solid-state hydrogen storage module can be thermally coupled with the fuel cell, improving the system's energy efficiency. Simultaneously, the "drawer-type" frame design enhances the ease of system disassembly and maintenance of each module, allowing for easy replacement as needed. The hydrogen storage module can also be used for hydrogen exchange, freeing it from the limitations of hydrogen refueling stations and facilitating the large-scale application and promotion of this fuel cell power generation system.

[0031] A hydrogen fuel cell power generation system based on solid-state hydrogen storage consists of five parts: a solid-state hydrogen storage module, a fuel cell module, a DC-DC module, an energy storage battery module, and a heat dissipation module.

[0032] In this embodiment, the system includes five parts: a solid-state hydrogen storage module, a fuel cell and its BOP module, a battery and DC-DC module, an energy storage battery module, and a heat dissipation module.

[0033] The solid-state hydrogen storage module provides hydrogen as a source for the hydrogen fuel cell module; the fuel cell module uses hydrogen to generate electricity, and the waste heat generated is used to heat the solid-state hydrogen storage module; the DC-DC converter performs voltage boost / buck conversion; the battery provides low-voltage power to the overall system; the energy storage battery module provides backup power; and the heat dissipation module dissipates heat from the fuel cell module and the solid-state hydrogen storage module and provides system ventilation.

[0034] The working principle of the system is as follows Figure 1 As shown, during normal operation, after the solid-state hydrogen storage module is filled with hydrogen, it utilizes the waste heat from the fuel cell to heat the fuel cell, releasing hydrogen to generate electricity. This electricity is then boosted / boosted via a DC-DC converter before being used to supply power. The fuel cell module can also charge the energy storage battery, which can then be boosted / boosted before supplying power, or the energy storage battery can be fully charged using mains power and used as a backup power source. Additionally, the fuel cell system can charge the low-voltage battery via a DC-DC converter, ensuring stable operation of the system's low-voltage circuit.

[0035] As attached Figure 2 As shown, the system adopts a "hydrogen-electricity zoning" approach for hardware layout, which is divided into two layers: a hydrogen area at the top and an electrical area at the bottom. The hydrogen area has solid-state hydrogen storage modules and fuel cell modules arranged side by side; the electrical area has heat dissipation modules, DC-DC modules and energy storage battery modules.

[0036] The upper and lower areas are sealed and isolated by a sealing plate. When hydrogen leaks, it will rise due to its low density and will not enter the lower electrical area to come into contact with the electrical modules and cause a safety accident. Therefore, the hydrogen safety of the system is improved from the perspective of hardware layout.

[0037] like Figure 3 As shown, the hardware structure of the system includes a frame 1, which is divided into two layers: a hydrogen region at the top and an electrical region at the bottom. The hydrogen region has a solid-state hydrogen storage module and a fuel cell module arranged in parallel; the electrical region has a heat dissipation module, a DC-DC module, and an energy storage battery module.

[0038] The fuel cell module includes a fuel cell and its BOP module housing 12, as well as a fuel cell and BOP 11 located inside. The fuel cell and its BOP module housing 12 are movably connected to the frame 1 via a track. The solid hydrogen storage module includes a solid hydrogen storage module housing 5 and a solid hydrogen storage alloy gas cylinder 3 located inside. The solid hydrogen storage alloy gas cylinder 3 is fixed on the solid hydrogen storage module housing 5 by a support plate 2. Each gas cylinder is equipped with a bottle mouth valve 4. The solid hydrogen storage module housing 5 is movably connected to the frame 1 by a track. The heat dissipation module 14 includes a heat dissipation module housing and a fan 13 located inside it. The heat dissipation module housing is movably connected to the frame 1 via a rail. The DC-DC module includes a battery and a DC-DC module housing 8, which contains a battery 6, an energy storage battery B7 and a DC-DC unit. The battery and DC-DC module housing 8 are movably connected to the frame 1 via a rail. The energy storage battery module 10 includes an energy storage battery module housing and an energy storage battery A9 located inside. The battery module housing is movably connected to the frame 1 via a track.

[0039] Each module of the power generation system is placed in a different cavity. The top of the box corresponding to each module is open, the front is closed, and there are multiple openings on the side to accommodate pipes and lines, and also for heat dissipation. The back and bottom are not restricted in terms of specific structure, but structures with openings are preferred to support the connection and cooperation between modules.

[0040] The upper and lower areas of frame 1 are sealed and isolated by a sealing plate. When pipes or circuits pass through the sealing plate, they are sealed by corresponding sealing elements.

[0041] Each module's corresponding housing is equipped with casters at its bottom, which are movably connected along a track set on frame 1. The track is arranged horizontally at the bottom of each module's corresponding housing, allowing the housings of each module to be movably connected to frame 1, forming a "drawer"-type structure. The components of each module are fixed inside different "drawers," and the pipes and circuits between modules are equipped with quick-connect connectors for easy disassembly. The pipes and circuits passing through the sealing plate are fixedly arranged, and a section of flexible tubing is reserved inside each module's corresponding housing to support the "pull-out" of each module.

[0042] During installation, simply secure each module to its respective "drawer," then push the "drawer" into the corresponding cavity of the frame using the bottom rollers, and finally connect the quick connectors between the modules. For maintenance, disconnect the quick connectors to remove the "drawer" for individual module maintenance. Fuel cell modules, hydrogen storage system modules, or DC-DC modules can also be quickly replaced according to different needs. Solid-state hydrogen storage modules can be quickly disassembled and replaced after hydrogen is depleted, achieving hydrogen exchange and eliminating the need for hydrogen refueling stations, thus solving the current problem of difficult hydrogen refueling.

[0043] The structure of frame 1 is as follows Figure 4 As shown, it includes a frame body and panels and support plates for different sub-modules located within the frame body. The panels and support plates are based on... Figure 2 The layout shown divides the entire system into different cavities, with different modules placed inside each cavity.

[0044] The panel and support plate can be designed with a hollow structure to reduce weight while providing channels for airflow to enhance gas flow and reduce the possibility of hydrogen leaks.

[0045] The internal structure of the solid-state hydrogen storage module is as follows: Figure 5 As shown, the solid hydrogen storage alloy cylinder 3 is located inside the solid hydrogen storage module housing 5. The solid hydrogen storage alloy cylinder 3 is fixed to the solid hydrogen storage module housing 5 by a support plate 2. Each cylinder is equipped with a bottle mouth valve 4.

[0046] In this embodiment, there are multiple solid hydrogen storage alloy cylinders 3 arranged in an array. A set number of cylinders are connected by hydrogen pipelines. For example, according to actual needs, the solid hydrogen storage alloy cylinders 3 are divided into several groups, and each group of cylinders is connected by a corresponding hydrogen pipeline.

[0047] This embodiment no longer uses 35MPa high-pressure gas cylinders for hydrogen storage, but instead selects solid-state hydrogen storage modules for hydrogen supply. Because hydrogen storage alloy cylinders are small, they can be used in large quantities and arranged in a customized manner. Multiple small hydrogen storage alloy cylinders are designed and arranged according to requirements, and then combined using high-strength support plates. Each cylinder is connected via hydrogen pipelines for hydrogen supply and refilling, forming a vertical hydrogen storage system. Compared to the larger volume of high-pressure gaseous hydrogen storage cylinders, solid-state hydrogen storage cylinders are easier to combine and arrange, resulting in higher space utilization.

[0048] The solid hydrogen storage alloy cylinder 3 contains a hydrogen storage alloy bed, which stores hydrogen through adsorption. The hydrogen storage alloy bed has embedded spiral / finned tubes for heating / cooling. Filter layers are installed at the inlet and outlet to prevent alloy powder from flowing with the hydrogen.

[0049] Hydrogen storage alloys (such as LaNi5, Mg2Ni, TiFe, etc.) are composed of specific metallic elements and are filled in the form of powder or porous sintered bodies to increase the contact area. Their crystal structure contains a large number of interstitial sites. Hydrogen gas (H2) can dissociate into hydrogen atoms (H) under mild conditions (0.5-3MPa, 20-80℃) and embed into the metal lattice to form metal hydrides.

[0050] The adsorption of hydrogen is an exothermic reaction. The hydrogen storage alloy bed is cooled by the spiral tube / finned tube. When hydrogen is released, the waste heat of the exhaust gas during the operation of the fuel cell is used to send into the spiral tube / finned tube in the hydrogen storage alloy bed, thereby heating the hydrogen storage alloy bed.

[0051] The waste heat generated during fuel cell discharge is exchanged through circulating water into the solid-state hydrogen storage module. This effectively reduces the external energy consumption required for hydrogen release in solid-state hydrogen storage, improving the overall energy utilization efficiency of the power generation system. The principle of the thermal cycle is as follows: Figure 6 As shown, the components involved in the thermal cycle include an expansion tank, a circulation pump, a heat exchanger, and a radiator. The outlet of the circulation pump is connected to the first medium inlet of the heat exchanger via a pipe. The first medium outlet is connected to the spiral tube / finned tube inside the solid hydrogen storage alloy cylinder 3 via a pipe. The spiral tube / finned tube is connected to the inlet of the circulation pump via a pipe. The second medium inlet of the heat exchanger is connected to the fuel cell cooling water inlet via a pipe. The second medium outlet is connected to the radiator via a pipe. The radiator is connected to the fuel cell cooling water return port via a pipe. The spiral tube / finned tube is connected to the expansion tank via a pipe.

[0052] The waste heat generated during fuel cell operation is carried by cooling water and sent to a heat exchanger to transfer heat to the heat exchange medium. After releasing heat, the cooling water is cooled again by a radiator and then returned to the fuel cell through the return port. During this process, the output flow rate of the circulating pump is controlled based on the temperature of the heat exchange medium at the inlet of the circulating pump, and the expansion tank is used to absorb the volume change of the heat exchange medium caused by thermal expansion and contraction.

[0053] In this embodiment, the heat sink can be connected to the fan 13 of the heat dissipation module 14.

[0054] Driven by the circulating pump, the heat exchange medium enters the solid hydrogen storage module (module) and the spiral tube / finned tube of the hydrogen storage alloy bed inside the solid hydrogen storage alloy cylinder to heat the hydrogen storage alloy bed and release hydrogen. The heat exchange medium after releasing heat returns to the inlet of the circulating pump to start the next cycle.

[0055] The hydrogen fuel cell power generation system proposed in this solution is highly safe and integrated, and has the following main characteristics: 1) The system uses solid-state hydrogen storage modules for hydrogen supply, resulting in low hydrogen storage pressure and high safety. Furthermore, the solid-state alloy cylinders can be assembled in various shapes, leading to a high degree of system integration. 2) The system uses a solid-state hydrogen storage solution to reuse the waste heat of the fuel cell, which greatly improves the overall energy utilization efficiency of the power generation system; 3) The system arranges hydrogen and electrical modules in separate zones, which inherently reduces the possibility of hydrogen coming into contact with electricity and improves the system's safety; 4) The system's sub-modules are arranged in a "drawer-style" layout, improving the ease of installation and maintenance. This enables rapid replacement of the hydrogen storage module. The system employs a hydrogen exchange scheme, allowing both stationary and mobile power generation systems to operate without the limitations of hydrogen refueling stations, thus improving the utilization rate and operational efficiency of the power generation system.

[0056] By adopting the solid-state hydrogen storage technology, the application pressure of hydrogen is reduced from the source, and the overall safety of the system is improved. At the same time, the solid-state hydrogen storage module is coupled and matched with the fuel cell system for thermal management, which further improves the overall energy utilization efficiency of the system.

[0057] The "hydrogen-electricity partitioning" design separates the hydrogen energy components and electrical components, reducing the potential hazards caused by electricity after a hydrogen leak and further improving the system's safety.

[0058] The modular design of subsystems such as hydrogen storage, fuel cells, DC-DC converters, energy storage batteries, and heat dissipation improves system maintainability as each module can be individually disassembled. Different solid-state hydrogen storage, fuel cell, and DC-DC modules can be combined according to needs. At the same time, the rapid replacement of solid-state hydrogen storage modules enables the "hydrogen swapping" route for power generation systems, eliminating the need for hydrogen refueling stations and facilitating the large-scale promotion of power generation systems in hydrogen-free areas.

[0059] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A hydrogen fuel cell power generation system based on solid-state hydrogen storage, characterized in that, The system includes a frame, which is divided into upper and lower layers. The hydrogen area on the top layer has a solid hydrogen storage module and a fuel cell module arranged in parallel. The electrical area on the bottom layer has a heat dissipation module, a DC-DC module and an energy storage battery module. The upper and lower layers are sealed and isolated from each other by a sealing plate. The solid hydrogen storage module includes a box movably connected to the frame. The box contains multiple solid hydrogen storage alloy cylinders arranged in an array. Each solid hydrogen storage alloy cylinder includes a cylinder body and a hydrogen storage alloy bed located inside the cylinder body.

2. The hydrogen fuel cell power generation system based on solid-state hydrogen storage as described in claim 1, characterized in that, The hydrogen released by the solid-state hydrogen storage module is sent to the fuel cell module through a pipeline, and the generated electricity is sent to the energy storage battery module, or can be used to supply power to external systems through the DC-DC module.

3. The hydrogen fuel cell power generation system based on solid-state hydrogen storage as described in claim 1, characterized in that, The energy storage battery module has a charging interface and a discharging interface. The charging interface is used to connect to the fuel cell module or an external power source for charging. The discharging interface provides external power through the DC-DC module.

4. The hydrogen fuel cell power generation system based on solid-state hydrogen storage as described in claim 1, characterized in that, The solid hydrogen storage module, the fuel cell module, the heat dissipation module, the DC-DC module, and the energy storage battery module all have a housing that is movably connected to the frame. The bottom of the housing is provided with rollers, which roll along the track to form a movable connection, forming a "drawer" type structure.

5. The hydrogen fuel cell power generation system based on solid-state hydrogen storage as described in claim 4, characterized in that, The top of the enclosure is open, and the sides of the enclosure have openings for pipes and circuits to pass through between the modules.

6. The hydrogen fuel cell power generation system based on solid-state hydrogen storage as described in claim 1, characterized in that, The solid hydrogen storage alloy cylinders are multiple in number, each of which has a valve at the nozzle. A set number of solid hydrogen storage alloy cylinders are connected by a hydrogen pipeline, which is connected to the fuel cell module.

7. The hydrogen fuel cell power generation system based on solid-state hydrogen storage as described in claim 1, characterized in that, The hydrogen storage alloy bed is equipped with a heat exchange element. The heat exchange element is connected to the first medium outlet of the heat exchanger and the inlet of the circulation pump through pipes. The inlet of the circulation pump is connected to the first medium inlet of the heat exchanger through a pipe. The circulation pump drives the first heat exchange medium to circulate between the heat exchanger and the heat exchange element.

8. The hydrogen fuel cell power generation system based on solid-state hydrogen storage as described in claim 7, characterized in that, The second medium inlet of the heat exchanger is connected to the cooling water inlet of the fuel cell module through a pipe, and the second medium outlet is connected to the radiator through a pipe. The radiator is connected to the cooling water return outlet of the fuel cell module through a pipe. The waste heat generated during the operation of the fuel cell module is used to heat the hydrogen storage alloy bed, causing it to release hydrogen.

9. The hydrogen fuel cell power generation system based on solid-state hydrogen storage as described in claim 7, characterized in that, The heat exchange element is a spiral tube / finned tube embedded in the hydrogen storage alloy bed.

10. The hydrogen fuel cell power generation system based on solid-state hydrogen storage as described in claim 7, characterized in that, The heat dissipation module has a fan connected to the radiator for cooling the cooling water of the fuel cell module.

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