Solid-state hydrogen storage charging and discharging test bench

Abstract

This utility model provides a hydrogen charging and discharging test bench device for solid-state hydrogen storage, comprising: a support frame; an insulated box mounted on the support frame, the insulated box containing an exchange medium; a temperature measuring structure disposed inside the insulated box and measuring the temperature of the exchange medium; a solid hydrogen storage bottle disposed inside the insulated box and immersed in the exchange medium, the solid hydrogen storage bottle being provided with a hydrogen charging pipeline and a hydrogen discharging pipeline; a heating tank mounted inside the support frame and located below the insulated box, the heating tank communicating with the internal space of the insulated box, the heating tank being used to heat the exchange medium; and a cooling pipeline communicating with the internal space of the insulated box, the cooling pipeline being used to cool the exchange medium. The technical solution of this application effectively solves the problem in related technologies where the measured temperature under the control of the heating tank and cooling pipeline, controlled by the exchange medium feedback, is inaccurate, resulting in a significant difference between the test environment and actual operating conditions.

Description

Technical Field

[0001] This utility model relates to the field of solid hydrogen storage material testing technology, and more specifically, to a hydrogen charging and discharging test bench device for solid hydrogen storage. Background Technology

[0002] Solid-state hydrogen storage, with its advantages of high hydrogen storage density and good safety, has great potential in the field of hydrogen energy storage and transportation. However, the hydrogen charging and discharging performance of solid-state hydrogen storage materials is greatly affected by pressure and temperature. During the hydrogen absorption phase, the material releases a large amount of heat. If heat cannot be dissipated in time, it will not only reduce the reaction rate but may also cause changes in the material structure, affecting the hydrogen storage effect. During the hydrogen release phase, the material needs to absorb heat to keep the reaction going. If the heat is not replenished in time, the reaction will be interrupted.

[0003] Currently, in existing solid hydrogen storage charging and discharging test benches, the solid hydrogen storage cylinder is installed in the exchange medium, and only the temperature of the exchange medium can be monitored. The temperature of the exchange medium is only controlled by the heating tank and cooling pipeline. However, because the exchange medium is easily affected by the external environment, the temperature measured by the exchange medium under the control of the heating tank and cooling pipeline is inaccurate, resulting in a large difference between the test environment and the actual working conditions. Utility Model Content

[0004] The main objective of this invention is to provide a hydrogen charging and discharging test bench for solid hydrogen storage, in order to solve the problem in related technologies where the measured temperature is inaccurate under the control of the exchange medium feedback heating tank and cooling pipeline, resulting in a large difference between the test environment and the actual working conditions.

[0005] To achieve the above objectives, according to one aspect of this utility model, a hydrogen charging and discharging test bench device for solid-state hydrogen storage is provided, comprising: a support frame; an insulated box mounted on the support frame, the insulated box containing an exchange medium; a temperature measuring structure disposed inside the insulated box and measuring the temperature of the exchange medium; a solid hydrogen storage bottle disposed inside the insulated box and immersed in the exchange medium, the solid hydrogen storage bottle being provided with a hydrogen charging pipeline and a hydrogen discharging pipeline; a heating tank mounted inside the support frame and located below the insulated box, the heating tank communicating with the internal space of the insulated box, the heating tank being used to heat the exchange medium; and a cooling pipeline communicating with the internal space of the insulated box, the cooling pipeline being used to cool the exchange medium.

[0006] Furthermore, the insulated box includes a box body and a box cover that can be opened and closed on the box body. The box body includes an inner box and an outer box that covers the inner box. A sandwich is formed between the inner box and the outer box. A solid hydrogen storage cylinder is placed inside the inner box. The inner box contains the exchange medium. The temperature measuring structure is placed inside the inner box.

[0007] Furthermore, the insulated box also includes an insulation layer, which is filled within the interlayer.

[0008] Furthermore, an annular sealing ring is embedded in the edge of the lid, and when the lid is placed over the opening of the inner box, the annular sealing ring seals between the lid and the inner box.

[0009] Furthermore, the tank cover is provided with a clearance opening to allow the hydrogen charging pipeline and the hydrogen discharging pipeline to pass through. A sealing element is installed inside the clearance opening, and the sealing element surrounds the outside of the hydrogen charging pipeline and the outside of the hydrogen discharging pipeline.

[0010] Furthermore, the clearance opening is elongated and includes an open end and a closed end. The open end is located at the edge of the lid, and the closed end has a preset distance from the edge of the lid.

[0011] Furthermore, a handle is provided on the top surface of the lid.

[0012] Furthermore, the insulation box is equipped with a heating interface and a cooling interface. The heating tank is connected to the heating interface through a heating pipe, and a circulation pump is installed on the heating pipe. The cooling interface is connected to the cooling pipe.

[0013] Furthermore, the hydrogen charging and discharging test bench for solid-state hydrogen storage also includes a hydrogen charging flow sensor, a pressure sensor, a hydrogen charging control valve, and a backup hydrogen inlet, which are respectively connected to the hydrogen charging pipeline.

[0014] Furthermore, the hydrogen charging and discharging test bench for solid hydrogen storage also includes a hydrogen discharging control valve, a hydrogen discharging flow sensor, and a hydrogen discharging adjustment valve, which are respectively connected to the hydrogen discharging pipeline.

[0015] The hydrogen charging and discharging test bench device for solid-state hydrogen storage, applying the technical solution of this utility model, includes: a support frame, an insulated box, a temperature measuring structure, a solid-state hydrogen storage bottle, a heating tank, and cooling pipelines. The insulated box is mounted on the support frame and contains the exchange medium. The temperature measuring structure is located inside the insulated box and measures the temperature of the exchange medium. The solid-state hydrogen storage bottle is placed inside the insulated box and immersed in the exchange medium. A hydrogen charging pipeline and a hydrogen discharging pipeline are provided on the solid-state hydrogen storage bottle. The heating tank is mounted inside the support frame and located below the insulated box, communicating with the internal space of the insulated box. The heating tank is used to heat the exchange medium. The cooling pipeline is also communicating with the internal space of the insulated box and is used to cool the exchange medium. When discharging hydrogen, the heated exchange medium in the heating tank is transported to the insulated box, providing heat to the solid-state hydrogen storage bottle to compensate for the heat absorbed during hydrogen discharging. When charging hydrogen, the cooling pipeline transports coolant to cool the exchange medium. The exchange medium circulates and carries away the heat released during hydrogen charging, preventing a sudden temperature rise. During hydrogen release and charging tests on a solid-state hydrogen storage charging and discharging test bench, the insulation box effectively isolates the interior and exterior of the test bench, preventing the exchange medium from being affected by the external environment. This ensures that the temperature measured by the temperature measuring structure under the control of the exchange medium feedback heating tank and cooling pipeline is more accurate, making the test environment closer to actual operating conditions and reducing discrepancies. Therefore, the technical solution of this application effectively solves the problem in related technologies where the temperature measured under the control of the exchange medium feedback heating tank and cooling pipeline is inaccurate, resulting in a significant difference between the test environment and actual operating conditions. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A three-dimensional structural schematic diagram of an embodiment of the hydrogen charging and discharging test bench device for solid hydrogen storage according to the present invention is shown.

[0018] Figure 2 It shows Figure 1 A three-dimensional structural diagram of the solid-state hydrogen storage charging and discharging test bench from another perspective.

[0019] Figure 3 It shows Figure 1 A cross-sectional schematic diagram of a solid-state hydrogen storage hydrogen charging and discharging test bench.

[0020] The above figures include the following reference numerals:

[0021] 1. Tank lid; 2. Outer casing; 3. Support frame; 4. Pressure sensor; 5. Hydrogen charging flow sensor; 6. Circulation pump; 7. Backup hydrogen inlet; 8. Cooling interface; 9. Hydrogen charging control valve; 10. Hydrogen release control valve; 11. Hydrogen release flow sensor; 12. Hydrogen release regulating valve; 13. Heating interface; 14. Inner casing; 15. Temperature measuring structure; 16. Insulation layer; 17. Solid hydrogen storage cylinder; 18. Heating tank; 19. Heating rod;

[0022] 20. Insulated box; 21. Hydrogen charging pipeline; 22. Hydrogen discharging pipeline; 23. Cooling pipeline; 24. Jacket; 25. Circumvention port; 251. Open end; 252. Closed end; 26. Handle; 27. Heating pipeline. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] 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 application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. 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.

[0025] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0026] like Figures 1 to 3 As shown, according to one aspect of this application, a hydrogen charging and discharging test bench for solid-state hydrogen storage is provided. An embodiment of the solid-state hydrogen storage charging and discharging test bench includes: a support 3, an insulation box 20, a temperature measuring structure 15, a solid-state hydrogen storage bottle 17, a heating tank 18, and a cooling pipeline 23. The insulation box 20 is mounted on the support 3 and contains an exchange medium. The temperature measuring structure 15 is disposed inside the insulation box 20 and measures the temperature of the exchange medium. The solid-state hydrogen storage bottle 17 is disposed inside the insulation box 20 and immersed in the exchange medium. A hydrogen charging pipeline 21 and a hydrogen discharging pipeline 22 are provided on the solid-state hydrogen storage bottle 17. The heating tank 18 is mounted inside the support 3 and located below the insulation box 20. The heating tank 18 communicates with the internal space of the insulation box 20 and is used to heat the exchange medium. The cooling pipeline 23 communicates with the internal space of the insulation box 20 and is used to cool the exchange medium. The temperature measuring structure 15 is preferably a temperature sensor, and the temperature sensor is preferably a sheathed thermocouple. The bracket 3 serves as a support base to stably support the insulation box 20. The cooling pipe 23 can be connected to an external chiller.

[0027] In the embodiment of the hydrogen charging and discharging test bench device for solid-state hydrogen storage, when hydrogen is discharged through the hydrogen discharge pipeline 22, the heated exchange medium in the heating tank 18 is transported to the insulation box 20. The exchange medium provides heat to the solid-state hydrogen storage bottle 17 to compensate for the heat absorbed during hydrogen discharge. When hydrogen is charged through the hydrogen charging pipeline 21, the cooling pipeline 23 transports coolant to cool the exchange medium. The exchange medium circulates and carries away the heat released during hydrogen charging, preventing a sudden temperature rise. During the hydrogen discharge and charging tests on the solid-state hydrogen storage test bench, the insulation box 20 isolates the interior and exterior of the insulation box 20, preventing the exchange medium from being affected by the external environment of the solid-state hydrogen storage test bench device. This ensures that the temperature measured by the temperature measuring structure 15 under the control of the exchange medium feedback heating tank and cooling pipeline is more accurate, making the test environment closer to the actual working conditions and reducing discrepancies. Therefore, the technical solution of the embodiment of the hydrogen charging and discharging test bench device for solid-state hydrogen storage effectively solves the problem in related technologies where the temperature measured under the control of the exchange medium feedback heating tank and cooling pipeline is inaccurate, resulting in a large difference between the test environment and the actual working conditions.

[0028] Heating rod 19 is installed inside heating tank 18, which can heat the exchange medium inside heating tank 18. Hydrogen charging line 21 and hydrogen discharging line 22 are made of stainless steel, and the joints are sealed with metal ferrules.

[0029] like Figures 1 to 3As shown, the insulated box 20 includes a box body and a lid 1 that can be opened and closed on the box body. The box body includes an inner box 14 and an outer box 2 covering the inner box 14. A sandwich layer 24 is formed between the inner box 14 and the outer box 2. A solid hydrogen storage cylinder 17 is placed inside the inner box 14, which contains the exchange medium. A temperature measuring structure 15 is placed inside the inner box 14. The opening and closing design of the lid 1 facilitates the installation and removal of the solid hydrogen storage cylinder 17. At the same time, it ensures that when closed, the inside of the insulated box 20 forms a closed space that isolates the external environment, effectively blocking the influence of the external environment on the temperature of the exchange medium and improving the accuracy of temperature control. The closed space forms a continuous heat insulation layer, and the sandwich layer 24 constitutes a sealed heat-insulating cavity.

[0030] like Figures 1 to 3 As shown, the insulation box 20 also includes an insulation layer 16, which is filled within the interlayer 24. The insulation layer 16, filling the interlayer 24 between the inner box 14 and the outer box 2, significantly reduces heat loss due to radiation and air convection, thereby enhancing the overall insulation performance of the insulation box 20 and ensuring stable internal temperature. Even under fluctuating external ambient temperatures, it maintains a constant temperature for the exchange medium surrounding the solid hydrogen storage cylinder 17, improving the matching degree between test conditions and actual working conditions. The material of the insulation layer 16 can be one of polystyrene foam, extruded polystyrene board, polyurethane foam, rock wool and glass wool, phenolic foam, foamed glass, and foamed cement.

[0031] like Figures 1 to 3 As shown, an annular sealing ring is embedded in the edge of the chamber cover 1. When the chamber cover 1 is placed over the opening of the inner chamber 14, the annular sealing ring seals between the chamber cover 1 and the inner chamber 14. The annular sealing ring ensures a tight seal between the chamber cover 1 and the inner chamber 14, effectively preventing heat loss due to evaporation of the exchange medium and preventing the intrusion of external air. This further improves the temperature control accuracy and energy efficiency of the insulation chamber 20, ensuring the stability of the exchange medium temperature and the reliability of the test data during the test.

[0032] like Figures 1 to 3 As shown, the cover 1 of the chamber has a clearance opening 25 to allow the hydrogen charging pipe 21 and the hydrogen discharging pipe 22 to pass through. A sealing element is installed inside the clearance opening 25, surrounding the outer sides of the hydrogen charging pipe 21 and the hydrogen discharging pipe 22. The clearance opening 25 allows the hydrogen charging pipe 21 and the hydrogen discharging pipe 22 to pass through without affecting the sealing of the insulated chamber 20. The use of the sealing element ensures the seal around the pipes, prevents heat loss through the pipe connections, maintains the temperature stability inside the insulated chamber 20, reduces testing errors, and facilitates hydrogen charging and discharging operations.

[0033] like Figures 1 to 3As shown, the clearance opening 25 is elongated and includes an open end 251 and a closed end 252. The open end 251 is located at the edge of the cover 1, and the closed end 252 is at a predetermined distance from the edge of the cover 1. This design not only meets the passage requirements of the hydrogen charging line 21 and the hydrogen discharging line 22, but also forms an additional isolation barrier through the predetermined distance between the closed end 252 and the open end 251, further reducing heat loss through the clearance opening 25 and ensuring efficient temperature control and a stable testing environment.

[0034] like Figures 1 to 3 As shown, a handle 26 is provided on the top surface of the cover 1. The installation of the handle 26 allows the operator to easily open or close the cover 1, which facilitates the daily maintenance of the device and the replacement of the solid hydrogen storage cylinder 17. At the same time, the handle is designed with ergonomics in mind, which reduces the operating burden and improves work efficiency.

[0035] like Figures 1 to 3 As shown, the insulation box 20 is equipped with a heating interface 13 and a cooling interface 8. The heating tank 18 is connected to the heating interface 13 via a heating pipe 27, on which a circulation pump 6 is installed. The cooling interface 8 is connected to a cooling pipe 23. The heating tank 18 and the internal space of the insulation box 20 are connected through the heating interface 13. The addition of the circulation pump 6 ensures the uniform distribution of the heating medium and improves heating efficiency. The connection between the cooling pipe 23 and the cooling interface 8 ensures the effective introduction and circulation of the cooling exchange medium, rapid cooling, and avoids the adverse effects of overheating on the performance of the solid hydrogen storage material. The reasonable pipeline layout reduces energy loss and optimizes the temperature control process, making the hydrogen charging and discharging process more efficient and safe.

[0036] like Figures 1 to 3 As shown, the hydrogen charging and discharging test bench for solid-state hydrogen storage also includes a hydrogen charging flow sensor 5, a pressure sensor 4, a hydrogen charging control valve 9, and a backup hydrogen inlet 7. These sensors are connected to the hydrogen charging pipeline 21. The integration of these sensors and control valves enables real-time monitoring and precise control of the hydrogen flow rate and pressure of the solid-state hydrogen storage cylinder 17 during the charging process. Data feedback from the hydrogen charging flow sensor 5 and the pressure sensor 4 allows for timely adjustment of the opening of the hydrogen charging control valve 9, ensuring stable charging rate and pressure in the solid-state hydrogen storage cylinder 17. This not only improves charging efficiency but also avoids potential damage to the hydrogen storage material from overpressure or underpressure. A temperature sensor is installed on the inner wall of the inner chamber 14. The bottom of the temperature sensor's measuring end contacts the deionized water inside the inner chamber 14 and forms a data linkage with the pressure sensor 4, providing feedback for temperature control.

[0037] like Figures 1 to 3As shown, the hydrogen charging and discharging test bench for solid-state hydrogen storage also includes a hydrogen discharging control valve 10, a hydrogen discharging flow sensor 11, and a hydrogen discharging adjustment valve 12, which are respectively connected to the hydrogen discharging pipeline 22. Through the cooperation of these components, flow monitoring and fine-tuning of the rate during the hydrogen discharging process can be achieved, ensuring the stable release of hydrogen from the solid-state hydrogen storage cylinder 17. The dynamic adjustment capability of the hydrogen discharging flow sensor 11 and the hydrogen discharging adjustment valve 12 can adapt to the hydrogen discharging requirements under different test conditions, while also ensuring the safety of the hydrogen charging and discharging test bench and the consistency of test results. The preferred exchange medium in this application is deionized water. The solid hydrogen storage bottle 17, constructed using deionized water, is placed in a water bath environment for heating, cooling, and multi-layer insulation to achieve precise temperature control. It integrates multiple sensors for dynamic monitoring of the solid hydrogen storage bottle 17 and a high-reliability hydrogen control component, solving the problems of temperature stability, parameter monitoring accuracy, and structural rationality in existing solid hydrogen storage charging and discharging test benches, and providing a reliable platform for performance testing of solid hydrogen storage materials.

[0038] The solid-state hydrogen storage hydrogen charging and discharging test bench also includes a controller, a temperature sensor, a hydrogen charging flow sensor 5, a pressure sensor 4, a hydrogen charging control valve 9, a hydrogen discharging control valve 10, a hydrogen discharging flow sensor 11, and a hydrogen discharging adjustment valve 12, all of which are connected to the controller. The internal space of the inner chamber 14 forms a water bath space for storing deionized water.

[0039] The hydrogen charging process of the solid-state hydrogen storage charging and discharging test bench is as follows:

[0040] During hydrogen filling, hydrogen gas from an external gas source enters the solid hydrogen storage cylinder 17 via the hydrogen filling control valve 9. After entering, the hydrogen gas passes sequentially through the hydrogen filling flow sensor 5 and the pressure sensor 4. These two sensors monitor the hydrogen filling flow rate and the pressure of the solid hydrogen storage cylinder 17 in real time, providing crucial data support for the entire hydrogen filling process. At this time, the hydrogen release control valve 10 is closed to prevent hydrogen gas from flowing back into the hydrogen filling pipeline 21.

[0041] As hydrogen gas continuously enters the solid-state hydrogen storage tank 17, a hydrogen absorption reaction occurs within it, releasing a significant amount of heat. A temperature sensor inside the inner chamber 14 monitors temperature changes in real time. Once a temperature rise is detected, a signal is transmitted to the controller. The controller then initiates a cooling water circulation system. External cooling water flows into the water bath space of the inner chamber 14 through the cooling interface 8, absorbing the heat released by the solid-state hydrogen storage tank 17 and carrying it away through circulation, thereby maintaining the suitable operating temperature of the solid-state hydrogen storage tank 17. During this process, the heating rod 19 is turned off, the circulation pump 6 is not operating, and the heating interface 13 is closed to prevent additional heat input from affecting temperature control.

[0042] The hydrogen release process of the solid-state hydrogen storage charging and discharging test bench is as follows:

[0043] When releasing hydrogen, the hydrogen release pipeline 22 first opens the hydrogen release control valve 10 and closes the hydrogen filling control valve 9 to prevent hydrogen from being accidentally filled into the solid hydrogen storage cylinder 17. The hydrogen in the solid hydrogen storage cylinder 17 is discharged after passing through the hydrogen release flow sensor 11 and the hydrogen release adjustment valve 12 in sequence. The hydrogen release flow sensor 11 monitors the hydrogen release flow in real time, while the hydrogen release adjustment valve 12 is used to precisely adjust the hydrogen release rate to meet different testing requirements.

[0044] Since the hydrogen release process is an endothermic reaction, it causes a drop in temperature in the solid hydrogen storage tank 17 and the surrounding water bath. At this point, the temperature sensor detects the temperature drop, and the controller activates the heating tank 18. The heating rod 19 heats the deionized water in the heating tank 18, and the circulation pump 6 pumps the heated water through the heating interface 13 into the water bath space of the inner tank 14. The hot water circulates in the water bath, providing continuous heat to the solid hydrogen storage tank 17 to ensure the hydrogen release reaction proceeds smoothly. Once the hydrogen release is complete, the hydrogen release control valve 10 is closed, the heating tank 18 is stopped, and the solid hydrogen storage charging / discharging test bench enters standby mode, ready for the next charging / discharging test.

[0045] In the description of this utility model, it should be understood that "multiple" means a quantity of two or more. Directional terms such as "front, back, up, down, left, right," "horizontal, vertical, perpendicular, horizontal," and "top, bottom" indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner or outer contours relative to the outline of each component itself.

[0046] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0047] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0048] 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 storage and hydrogen charging and discharging test bed device for solid hydrogen storage, characterized in that, include: Scaffold (3); An insulated box (20) is installed on the bracket (3), and the insulated box (20) contains an exchange medium; A temperature measuring structure (15) is installed inside the insulation box (20) to measure the temperature of the exchange medium; A solid hydrogen storage cylinder (17) is placed inside the insulation box (20) and immersed in the exchange medium. The solid hydrogen storage cylinder (17) is provided with a hydrogen filling pipeline (21) and a hydrogen discharging pipeline (22). A heating tank (18) is installed inside the bracket (3) and located below the insulation box (20). The heating tank (18) is connected to the internal space of the insulation box (20). The heating tank (18) is used to heat the exchange medium. The cooling pipe (23) is connected to the internal space of the insulation box (20) and is used to cool the exchange medium.

2. The solid-state hydrogen storage hydrogen charging and discharging test bed device according to claim 1, characterized in that, The insulated box (20) includes a box body and a box cover (1) that can be opened and closed on the box body. The box body includes an inner box (14) and an outer box (2) covering the inner box (14). A sandwich (24) is formed between the inner box (14) and the outer box (2). The solid hydrogen storage bottle (17) is disposed in the inner box (14). The inner box (14) contains the exchange medium. The temperature measuring structure (15) is disposed in the inner box (14).

3. The solid-state hydrogen storage hydrogen charging and discharging test bed device according to claim 2, characterized in that, The insulated box (20) also includes an insulation layer (16), which is filled in the interlayer (24).

4. The solid-state hydrogen storage hydrogen charging and discharging test bed device according to claim 2, characterized in that, An annular sealing ring is embedded in the edge of the box cover (1). When the box cover (1) is placed over the opening of the inner box (14), the annular sealing ring seals between the box cover (1) and the inner box (14).

5. The solid state hydrogen storage hydrogen charging and discharging test bed device of claim 2, wherein, The cover (1) is provided with a clearance opening (25) to allow the hydrogen charging pipe (21) and the hydrogen discharging pipe (22) to pass through. A sealing element is provided in the clearance opening (25), and the sealing element surrounds the outside of the hydrogen charging pipe (21) and the outside of the hydrogen discharging pipe (22).

6. The solid-state hydrogen storage hydrogen charging and discharging test bed device according to claim 5, characterized in that, The clearance opening (25) is elongated and includes an open end (251) and a closed end (252). The open end (251) is located at the edge of the box cover (1), and the closed end (252) is at a predetermined distance from the edge of the box cover (1).

7. The solid-state hydrogen storage charge-discharge test bed device according to any one of claims 2 to 6, wherein, A handle (26) is provided on the top surface of the box cover (1).

8. The solid state hydrogen storage charge-discharge test bed of any one of claims 1 to 6, wherein, The heat preservation box (20) is provided with a heating interface (13) and a cooling interface (8). The heating tank (18) is connected to the heating interface (13) through a heating pipe (27). A circulation pump (6) is provided on the heating pipe (27). The cooling interface (8) is connected to the cooling pipe (23).

9. The solid state hydrogen storage charge-discharge test bed of any one of claims 1 to 6, wherein, The hydrogen charging and discharging test bench for solid hydrogen storage also includes a hydrogen charging flow sensor (5), a pressure sensor (4), a hydrogen charging control valve (9), and a spare hydrogen inlet (7). The hydrogen charging flow sensor (5), the pressure sensor (4), the hydrogen charging control valve (9), and the spare hydrogen inlet (7) are respectively connected to the hydrogen charging pipeline (21).

10. The solid state hydrogen storage hydrogen charging and discharging test bed device according to any one of claims 1 to 6, characterized in that, The hydrogen charging and discharging test bench for solid hydrogen storage also includes a hydrogen discharging control valve (10), a hydrogen discharging flow sensor (11), and a hydrogen discharging adjustment valve (12), which are respectively connected to the hydrogen discharging pipeline (22).

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