Solid-state hydrogen storage device and solid-state hydrogen storage test system

Abstract

This application relates to the field of hydrogen storage technology, and in particular to a solid-state hydrogen storage device and a solid-state hydrogen storage testing system. The solid-state hydrogen storage device includes a supporting component, a hydrogen storage tank, a fan, and a heating component. The supporting component forms an installation cavity, in which the hydrogen storage tank is installed. The heating component is disposed on the side wall of the installation cavity and is used to heat the hydrogen storage tank. The supporting component has an air inlet and an air outlet communicating with the installation cavity. The fan is disposed on the supporting component and is connected to both the air inlet and the outside of the supporting component, and is used to blow air to cool the hydrogen storage tank. Therefore, during the hydrogen charging and heat release process, the fan can be activated to dissipate heat, thus preventing a sudden increase in local temperature and improving the stability of the hydrogen storage material. During the hydrogen release and heat absorption process, the heating component can be activated to continuously heat the hydrogen, thereby solving the problem of insufficient heat supply, ensuring the continuous progress of the reaction, and improving the reliability of the test.

Description

Technical Field

[0001] This application relates to the field of hydrogen storage technology, and in particular to a solid hydrogen storage device and a solid hydrogen storage testing system. Background Technology

[0002] Currently, magnesium-based solid-state hydrogen storage materials have attracted widespread attention in the field of hydrogen energy storage due to their advantages such as high hydrogen storage density and low cost. At present, the hydrogen charging and discharging performance testing of magnesium-based solid-state hydrogen storage materials mostly relies on simple experimental setups. The core scheme typically includes basic components such as a hydrogen storage container, heating equipment, and hydrogen supply device. The charging and discharging process is mainly achieved by controlling temperature and pressure, and basic parameters such as the hydrogen storage capacity are monitored. However, existing technologies have some shortcomings, such as: imprecise thermal management: hydrogen charging of magnesium-based hydrogen storage materials is an exothermic reaction, while hydrogen discharging is an endothermic reaction. Existing devices lack a targeted control mechanism for the heat of reaction—the exothermic reaction during charging can easily lead to a sudden increase in local temperature, affecting the stability of the material; if the endothermic reaction during discharging is not adequately heated, it can cause the reaction to be interrupted, reducing the reliability of the test. Utility Model Content

[0003] The purpose of this application is to provide a solid hydrogen storage device and a solid hydrogen storage testing system, which to some extent solves the technical problems of existing magnesium-based solid hydrogen storage material hydrogen charging and discharging performance testing devices lacking a directional control mechanism for reaction heat, which leads to a sudden increase in local temperature during hydrogen charging and affects material stability, and insufficient heat supply during hydrogen discharging and absorption, which can cause reaction interruption and reduce test reliability.

[0004] This application provides a solid hydrogen storage device, including: a supporting member, a hydrogen storage tank, a heating member, and a fan; wherein, the supporting member forms an installation cavity, and the hydrogen storage tank is installed in the installation cavity; the heating member is disposed on the side wall of the installation cavity and is used to heat the hydrogen storage tank; the supporting member forms an air inlet and an air outlet communicating with the installation cavity; the fan is disposed on the supporting member, and the fan is respectively connected to the air inlet and the outside of the supporting member, and the fan is used to blow air to cool the hydrogen storage tank.

[0005] In the above technical solution, the solid hydrogen storage device further includes an air guide component, which is disposed on the supporting component, and the fan is disposed on the air guide component; the air guide component forms an air guide channel and an exhaust port connected to the air guide channel, and the air guide channel is connected to the fan and the air inlet respectively; the air outlet is connected to the exhaust port.

[0006] In any of the above technical solutions, the air inlet and the air outlet are the same air outlet and extend along the length direction of the supporting member, and the air guide member and the air guide channel thereon both extend along the length direction of the supporting member.

[0007] In any of the above technical solutions, the same air outlet is formed at the bottom of the supporting member, the air guide member is disposed below the supporting member, and the fan is disposed below the air guide member; the solid hydrogen storage device further includes a first support member and a second support member, and the first support member and the second support member are respectively supported at the bottom of both ends of the supporting member.

[0008] In any of the above technical solutions, the solid hydrogen storage device further includes an installation component and a viewing window; wherein, the installation component is disposed on the support component, and the installation component forms an observation channel communicating with the interior of the installation cavity; the viewing window is installed on the installation component and covers the outer opening end of the observation channel, and the viewing window is used to observe the working status of the hydrogen storage tank inside the installation cavity.

[0009] In any of the above technical solutions, the solid hydrogen storage device further includes a temperature detection component, which is disposed on the supporting component, and the detection end of the temperature detection component extends to a position close to the mounting cavity.

[0010] In any of the above technical solutions, the supporting member further comprises an installation port communicating with the mounting cavity, and the hydrogen storage tank can be detachably installed in the mounting cavity via the installation port; the end cap of the hydrogen storage tank is located outside the installation port and covers the installation port.

[0011] In any of the above technical solutions, the supporting member further includes a first supporting part and a second supporting part; wherein, one side of the first supporting part is rotatably connected to one side of the second supporting part, and the other side of the first supporting part is detachably connected to the other side of the second supporting part by a buckle; the first supporting part forms a first groove extending through its top along its height direction and one end along its length direction, the second supporting part forms a second groove extending through its bottom along its height direction and one end along its length direction, and the first groove and the second groove form the mounting cavity; the fan is disposed on the first supporting part or the second supporting part.

[0012] This application also provides a solid hydrogen storage testing system, which includes the solid hydrogen storage device described in any of the above technical solutions, and therefore has all the beneficial technical effects of the solid hydrogen storage device, which will not be repeated here.

[0013] In the above technical solution, the solid-state hydrogen storage testing system further includes a hydrogen source, a main pipeline, a first flow meter, a first manual valve, a first filter, a first automatic control valve, a pressure reducing valve, a second manual valve, a second flow meter, a second automatic control valve, a third flow meter, a connecting pipeline, a third automatic control valve, a second filter, a first vent pipeline, and a fourth automatic control valve; wherein, the hydrogen source is connected to the vent of the hydrogen storage tank of the solid-state hydrogen storage device through the main pipeline;

[0014] The first flow meter, the first manual valve, the first filter, the first automatic control valve, the pressure reducing valve, the second manual valve, the second flow meter, the second automatic control valve, and the third flow meter are sequentially arranged along the main pipeline from the hydrogen source toward the hydrogen storage tank; the main pipeline connecting the second manual valve and the second flow meter is connected to one end of the connecting pipeline;

[0015] The main pipeline connecting the second automatic control valve and the third flow meter is connected to the other end of the connecting pipeline; the third automatic control valve and the second filter are sequentially arranged in the connecting pipeline, and the third automatic control valve is arranged relative to the second filter and closer to the second manual valve; the main pipeline connecting the second flow meter and the second automatic control valve is connected to one end of the first vent pipeline; the fourth automatic control valve is arranged in the first vent pipeline.

[0016] In any of the above technical solutions, the solid-state hydrogen storage testing system further includes a nitrogen source, a first purge pipeline, a second purge pipeline, a second vent pipeline, a third purge pipeline, a fourth purge pipeline, and a fifth purge pipeline; wherein the nitrogen source is connected to the main pipeline connecting the hydrogen source and the first flow meter through the first purge pipeline; the main pipeline connecting the first purge pipeline and the first flow meter is connected to one end of the second vent pipeline;

[0017] The second purge line is connected to the first purge line and the second vent line respectively; the main line connecting the pressure reducing valve and the second hand valve is connected to one end of the third purge line; the main line connecting the connecting line and the third flow meter is connected to one end of the fifth purge line; the other end of the third purge line, the other end of the first vent line, and the other end of the fifth purge line are all connected to the second vent line via the fifth purge line.

[0018] In any of the above technical solutions, the solid hydrogen storage test system further includes a fourth flow meter and a nitrogen purge valve; wherein the fourth flow meter and the nitrogen purge valve are sequentially arranged on the first purge pipeline that connects the second purge pipeline and the main pipeline, and the fourth flow meter is arranged relative to the nitrogen purge valve closer to the nitrogen source side.

[0019] In any of the above technical solutions, the solid hydrogen storage testing system further includes a purge vent valve, which is disposed in the second vent pipeline, and the connection point between the second purge pipeline and the second vent pipeline is disposed relative to the vent end of the purge vent valve near the second vent pipeline.

[0020] In any of the above technical solutions, the solid-state hydrogen storage testing system further includes a first safety valve, which is disposed in the second purge pipeline.

[0021] In any of the above technical solutions, the solid-state hydrogen storage testing system further includes a second safety valve, which is disposed in the third purge pipeline.

[0022] In any of the above technical solutions, the solid-state hydrogen storage testing system further includes a third safety valve, which is disposed in the fifth purge pipeline.

[0023] Compared with the prior art, the beneficial effects of this application are as follows:

[0024] Precise thermal management strategy: Targeting the characteristics of hydrogen charging exothermic (heat removal by starting the fan) and hydrogen release endothermic (continuous heating by the heating components), a linkage control logic for the heating and cooling systems is designed to avoid temperature fluctuations affecting reaction stability. In other words, through targeted thermal management (heat release and heat removal, heat absorption and heat supply), abnormal temperature fluctuations are avoided, ensuring the stable progress of the hydrogen charging and releasing reaction, and improving the repeatability of test data by more than 30%.

[0025] System status monitoring scheme: By using an observation window and light source assistance, combined with a timed recording mechanism, the physical state (expansion, color, morphology) of the magnesium alloy bed can be tracked in real time, linking macroscopic data with microscopic changes in the material. Moreover, by combining bed status monitoring and macroscopic parameter recording, the physical changes of magnesium-based materials during hydrogen charging and discharging (such as expansion rate and morphological stability) can be intuitively analyzed, providing a direct basis for material performance optimization.

[0026] Standardized process design: Clearly define the temperature / pressure parameters for hydrogen charging (280°C, 1MPa) and hydrogen discharging (350-380°C, 0.3MPa), as well as the timing of equipment start-up and shutdown (e.g., stop heating after reaching the hydrogen charging temperature, and continue heating during hydrogen discharging), to ensure test repeatability and reliability. In other words, by standardizing the operating process and clarifying the equipment linkage logic, the feasibility of the magnesium-based solid hydrogen storage device to achieve hydrogen charging and discharging based on electric heating can be effectively verified, providing key data support for subsequent pilot-scale and industrial applications. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the solid hydrogen storage device provided in the embodiments of this application;

[0029] Figure 2 This is another structural schematic diagram of the solid hydrogen storage device provided in the embodiments of this application;

[0030] Figure 3 Another schematic diagram of the solid hydrogen storage device provided in the embodiments of this application;

[0031] Figure 4 This is a schematic diagram of a solid-state hydrogen storage testing system provided in an embodiment of this application.

[0032] Figure label:

[0033] 1-Solid-state hydrogen storage device; 101-Bearing component; 1011-First bearing part; 1012-Second bearing part; 1013-Snap fastener; 102-Hydrogen storage tank; 1021-End cap; 103-Air guide component; 1031-Exhaust port; 104-Fan; 105-First support component; 106-Second support component; 107-Mounting component; 108-Viewing window; 109-Temperature detection component; 2-Hydrogen source; 3-Main pipeline; 4-First flow meter; 5-First manual valve; 6-First filter; 7-First automatic control valve; 8-Pressure reducing valve; 9-Second manual valve; 10-Second flow meter. 11-Second automatic control valve, 12-Third flow meter, 13-Connecting pipeline, 14-Third automatic control valve, 15-Second filter, 16-Nitrogen source, 17-First purge pipeline, 18-Second purge pipeline, 19-Second vent pipeline, 20-Third purge pipeline, 21-First vent pipeline, 22-Fourth purge pipeline, 23-Fifth purge pipeline, 24-Fourth flow meter, 25-Nitrogen purge manual valve, 26-Purge vent valve, 27-First safety valve, 28-Second safety valve, 29-Third safety valve, 30-Fourth automatic control valve, 31-Heating component. Detailed Implementation

[0034] The technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0035] The components of the embodiments of this application described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application.

[0036] Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0037] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and 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. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0039] The following reference Figures 1 to 4 This application describes a solid-state hydrogen storage device and a solid-state hydrogen storage testing system according to some embodiments.

[0040] Example 1

[0041] See Figures 1 to 3 As shown, an embodiment of this application provides a solid hydrogen storage device 1, including: a supporting member 101, a hydrogen storage tank 102, a heating member 31, and a fan 104; wherein, the supporting member 101 forms an installation cavity, and the hydrogen storage tank 102 is installed in the installation cavity; the heating member 31 is disposed on the side wall of the installation cavity and is used to heat the hydrogen storage tank 102; the supporting member 101 forms an air inlet and an air outlet communicating with the installation cavity; the fan 104 is disposed on the supporting member 101, and the fan 104 is connected to the air inlet and the outside of the supporting member 101 respectively, and the fan 104 is used to blow air to cool the hydrogen storage tank 102.

[0042] As can be seen from the structure described above, this application provides a novel solid-state hydrogen storage device 1, which can be applied in a solid-state hydrogen storage testing system. During the hydrogen charging and heat release process, the fan 104 can be started to dissipate heat, thus preventing a sudden rise in local temperature and helping to improve the stability of the hydrogen storage material. During the hydrogen release and heat absorption process, the heating component 31 can be started to continuously heat the hydrogen, thereby solving the problem of insufficient heat supply. In other words, it ensures the continuous progress of the reaction and improves the reliability of the test.

[0043] In this embodiment, preferably, as follows: Figures 1 to 3 As shown, the solid hydrogen storage device 1 also includes an air guide component 103, which is disposed on the supporting component 101. A fan 104 is disposed on the air guide component 103. It can be seen that in this application, the fan 104 is installed on the supporting component 101 through the air guide component, that is, the fan 104 is indirectly installed on the supporting component 101. The air guide component 103 forms an air guide channel and an exhaust port 1031 connected to the air guide channel. The air guide channel is connected to the fan 104 and the air inlet respectively. The air outlet is connected to the exhaust port 1031.

[0044] As can be seen from the structure described above, an air guide channel is provided between the fan 104 and the supporting component 101. This air guide channel can guide cold air from the outside into the installation cavity to cool the hydrogen storage tank 102, and can also exhaust the cooled hot air out of the installation cavity and discharge it through the exhaust port 1031. It can be seen that the air guide channel plays a role in guiding air and buffering to a certain extent, and also prevents outside air from blowing directly into the installation cavity, and can also improve the protection level to a certain extent.

[0045] Furthermore, preferably, there are multiple fans 104, which are arranged sequentially at intervals along the length of the air guide member 103. Of course, this is not the only option; the number of fans 104 may also be one, depending on the actual needs.

[0046] It should be noted that: not only the structure with the air guide component 103 described above, but also the structure without the air guide component 103, in which case the air guide component 103 can be directly installed on the load-bearing component 101.

[0047] In this embodiment, preferably, as follows: Figure 1 and Figure 2 As shown, the air inlet and air outlet are the same air outlet (not shown in the figure) and extend along the length direction of the supporting member 101, and the air guide member 103 and the air guide channel thereon also extend along the length direction of the supporting member 101.

[0048] As can be seen from the structure described above, in this application, the air inlet and air outlet are set as the same air outlet extending along the length direction of the bearing member 101. This same air outlet can be connected to the air guide channel with the same extension direction, which facilitates air inlet and air outlet. Moreover, it only requires one processing, making the operation simple, convenient and saving processing costs.

[0049] In this embodiment, preferably, as follows: Figure 1 and Figure 2 As shown, the same air vent is formed at the bottom of the supporting member 101, the air guide member 103 is disposed below the supporting member 101, and the fan 104 is disposed below the air guide member 103 (not shown in the figure); the solid hydrogen storage device 1 also includes a first support member 105 and a second support member 106, and the first support member 105 and the second support member 106 are respectively supported at the bottom of both ends of the supporting member 101.

[0050] As can be seen from the structure described above, the aforementioned air outlet is set at the bottom of the supporting member 101. Correspondingly, the air guide member 103 is set below the supporting member 101, and the fan 104 is set below the air guide member 103. This meets the gravity design requirements and, compared to installing it on the side or other positions, will not cause displacement due to gravity. Moreover, it can make full use of the space in the vertical direction, thus saving the horizontal space. Furthermore, in this application, the first support member 105 and the second support member 106 can be used to support the supporting member 101, while forming a certain space below the supporting member 101 for installing the air guide and the fan 104, thus avoiding interference.

[0051] It should be noted that the first support member 105 and the second support member 106 may not be provided. In this case, the bearing member 101 can be placed directly on the workbench, and the air guide member 103 can be set on the side of the bearing member 101. Then the fan 104 is located on the side of the air guide member 103. Of course, it is not limited to this. The air guide member 103 can also be set at the bottom of the bearing member 101, that is, the air guide member 103 is in direct contact with the workbench. In this case, the fan 104 can be installed on the side of the air guide member 103.

[0052] In addition, it should be noted that the aforementioned air vent is not limited to being located at the bottom of the supporting member 101, but can also be located at other positions such as the side or top.

[0053] In this embodiment, preferably, as follows: Figure 1 and Figure 2 As shown, the solid hydrogen storage device 1 also includes a mounting component 107 and a viewing window 108; wherein, the mounting component 107 is disposed on the supporting component 101, and the mounting component 107 forms an observation channel communicating with the interior of the mounting cavity; the viewing window 108 is mounted on the mounting component 107 and covers the outer opening end of the observation channel, and the viewing window 108 is used to observe the working status of the hydrogen storage tank 102 inside the mounting cavity.

[0054] As can be seen from the structure described above, with the aid of a light source, the physical state (expansion, color, morphology) of the magnesium alloy bed can be tracked in real time through the observation window 108 and the timed recording mechanism, thereby linking macroscopic data with microscopic changes in the material.

[0055] In this embodiment, preferably, as follows: Figure 2 As shown, the solid hydrogen storage device 1 also includes a temperature detection component 109, which is disposed on the support component 101, and the detection end of the temperature detection component 109 extends to the vicinity of the mounting cavity.

[0056] As can be seen from the structure described above, the temperature detection component 109 is used to monitor the temperature inside the mounting cavity in real time, which helps to improve the accuracy and reliability of the test.

[0057] Furthermore, preferably, the temperature detection component 109 is a temperature sensor. Of course, it is not limited to this, and can be selected according to actual needs.

[0058] In this embodiment, preferably, as follows: Figure 1 and Figure 2 As shown, the supporting member 101 has an installation port that communicates with the installation cavity, and the hydrogen storage tank 102 can be detachably installed in the installation cavity through the installation port; the end cap 1021 of the hydrogen storage tank 102 is located outside the installation port and covers the installation port.

[0059] As can be seen from the structure described above, the hydrogen storage tank 102 can be detachably installed in the installation cavity through the installation port, which facilitates the maintenance of the hydrogen storage tank 102. Moreover, when the hydrogen storage tank 102 is installed in the installation cavity, the end cap 1021 of the hydrogen storage tank 102 also covers the installation port, which plays a role in dust prevention and improves the protection level.

[0060] In this embodiment, the heating element 31 is preferably an electric heater. Of course, it is not limited to this and can also be other heating devices, depending on actual needs.

[0061] In this embodiment, preferably, as follows: Figure 3 As shown, the supporting member 101 includes a first supporting part 1011 and a second supporting part 1012; wherein, one side of the first supporting part 1011 is rotatably connected to one side of the second supporting part 1012, and the other side of the first supporting part 1011 is detachably connected to the other side of the second supporting part 1012 by a buckle 1013; the first supporting part 1011 forms a first groove extending through its top along its height direction and one end along its length direction, and the second supporting part 1012 forms a second groove extending through its bottom along its height direction and one end along its length direction, and the first groove and the second groove form a mounting cavity.

[0062] As described above, the latch is opened, and the first support portion 1011 is rotated open relative to the second support portion 1012 to facilitate the installation of the hydrogen storage tank 102 between them. After installation, the latch is tightened to fix the hydrogen storage tank 102 between the first support portion 1011 and the second support portion 1012. Of course, the structure of the support member 101 is not limited to this and can be designed according to actual needs.

[0063] Furthermore, preferably, the air guide component 103 is disposed on the second support portion 1012. Of course, it is not limited to this. The air guide component 103 may also be disposed on the first support portion 1011. In other words, the fan 104 may be indirectly disposed on the second support portion 1012 or the first support portion 1011.

[0064] Furthermore, preferably, both the first support portion 1011 and the second support portion 1012 are provided with heating components 31.

[0065] Example 2

[0066] See Figure 4 As shown, Embodiment 2 of this application also provides a solid hydrogen storage testing system, which includes the solid hydrogen storage device 1 described in Embodiment 1 above. Therefore, it has all the beneficial technical effects of the solid hydrogen storage device 1. The same technical features and beneficial effects will not be repeated here.

[0067] In this embodiment, preferably, as follows: Figure 4 As shown, the solid-state hydrogen storage test system also includes a hydrogen source 2, a main pipeline 3, a first flow meter 4, a first manual valve 5, a first filter 6, a first automatic control valve 7, a pressure reducing valve 8, a second manual valve 9, a second flow meter 10, a second automatic control valve 11, a third flow meter 12, a connecting pipeline 13, a third automatic control valve 14, a second filter 15, a first vent pipeline 21, and a fourth automatic control valve 30; wherein, the hydrogen source 2 is connected to the vent of the hydrogen storage tank 102 of the solid-state hydrogen storage device 1 through the main pipeline 3;

[0068] The first flow meter 4, the first manual valve 5, the first filter 6, the first automatic control valve 7, the pressure reducing valve 8, the second manual valve 9, the second flow meter 10, the second automatic control valve 11, and the third flow meter 12 are sequentially arranged in the main pipeline 3 along the hydrogen source 2 toward the hydrogen storage tank 102; the main pipeline 3 connecting the second manual valve 9 and the second flow meter 10 is connected to one end of the connecting pipeline 13.

[0069] The main pipeline 3 connecting the second automatic control valve 11 and the third flow meter 12 is connected to the other end of the connecting pipeline 13; the third automatic control valve 14 and the second filter 15 are sequentially arranged in the connecting pipeline 13, and the third automatic control valve 14 is arranged relative to the second filter 15 closer to the second hand valve 9; the main pipeline 3 connecting the second flow meter 10 and the second automatic control valve 11 is connected to one end of the first vent pipeline 21; the fourth automatic control valve 30 is arranged in the first vent pipeline 21.

[0070] Based on the structure described above, the hydrogen charging and discharging process of the solid-state hydrogen storage testing system provided in this application is roughly as follows:

[0071] Hydrogen charging process: After the heating component 31 heats the magnesium-based solid hydrogen storage material in the hydrogen storage tank 102 to 280°C, it automatically shuts off the third automatic control valve 14 and the fourth automatic control valve 30, that is, the third automatic control valve 14 and the fourth automatic control valve 30 are automatically closed, and the first automatic control valve 7 and the second automatic control valve 11 are automatically opened. The hydrogen source 2 is charged with hydrogen at a pressure of 1MPa after being regulated by the pressure regulating valve at its bottle mouth. Because hydrogen charging is exothermic, the magnesium-based solid hydrogen storage material absorbs hydrogen, the heating stops, and the fan 104 is started to remove heat and maintain the reaction stability until the hydrogen absorption is completed.

[0072] Hydrogen release process: The heating element 31 heats the magnesium-based solid hydrogen storage material in the hydrogen storage tank 102 to 350-380°C, automatically opens the third automatic control valve 14 and the fourth automatic control valve 30, and automatically shuts off the first automatic control valve 7 and the second automatic control valve 11. The magnesium-based solid hydrogen storage material releases hydrogen at a pressure of 0.3MPa. The released hydrogen is finally discharged to the designated location through the first venting pipeline 21. Because hydrogen release absorbs heat, the heating element 31 continues to supply heat and the fan 104 is not started to ensure the reaction continues until the hydrogen release is completed.

[0073] Furthermore, preferably, during the hydrogen charging and discharging process, the bed changes (expansion, color, morphology, etc.) are observed every 30 minutes through the viewing window 108, and data such as temperature and duration are recorded.

[0074] It is evident that this solid-state hydrogen storage testing system has the following advantages:

[0075] Precise thermal management strategy: Targeting the characteristics of hydrogen charging exothermic (heat removal by starting fan 104) and hydrogen release endothermic (continuous heating), a linkage control logic for the heating and cooling systems is designed to avoid temperature fluctuations affecting reaction stability. In other words, through targeted thermal management (heat release and heat removal, heat absorption and heat supply), abnormal temperature fluctuations are avoided, ensuring the stable progress of the hydrogen charging and releasing reaction, and improving the repeatability of test data by more than 30%.

[0076] System status monitoring scheme: By observing the 108+ light source and using a timed recording mechanism, the physical state (expansion, color, morphology) of the magnesium alloy bed can be tracked in real time, linking macroscopic data with microscopic changes in the material. Moreover, by combining bed status monitoring and macroscopic parameter recording, the physical changes of magnesium-based materials during hydrogen charging and discharging (such as expansion rate and morphological stability) can be analyzed intuitively, providing a direct basis for optimizing material performance.

[0077] Standardized process design: Clearly define the temperature / pressure parameters for hydrogen charging (280°C, 1MPa) and hydrogen discharging (350-380°C, 0.3MPa), as well as the timing of equipment start-up and shutdown (e.g., stop heating after hydrogen charging reaches the required temperature, and continue heating during hydrogen discharging), to ensure test repeatability and reliability. In other words, by standardizing the operating process and clarifying the equipment linkage logic, the feasibility of the magnesium-based solid hydrogen storage device 1 achieving hydrogen charging and discharging based on electric heating can be effectively verified, providing key data support for subsequent pilot-scale and industrial applications.

[0078] Furthermore, preferably, the hydrogen source 2 is a hydrogen cylinder filled with hydrogen, but of course, it is not limited to this.

[0079] In this embodiment, preferably, as follows: Figure 4 As shown, the solid-state hydrogen storage test system also includes a nitrogen source 16, a first purge line 17, a second purge line 18, a second vent line 19, a third purge line 20, a fourth purge line 22, and a fifth purge line 23; wherein, the nitrogen source 16 is connected to the main pipeline 3 connecting the hydrogen source 2 and the first flow meter 4 through the first purge line 17; the main pipeline 3 connecting the first purge line 17 and the first flow meter 4 is connected to one end of the second vent line 19;

[0080] The second purge line 18 is connected to the first purge line 17 and the second vent line 19 respectively; the main line 3 connecting the pressure reducing valve 8 and the second hand valve 9 is connected to one end of the third purge line 20; the main line 3 connecting the connecting line 13 and the third flow meter 12 is connected to one end of the fifth purge line 23; the other end of the third purge line 20, the other end of the first vent line 21 and the other end of the fifth purge line 23 are all connected to the second vent line 19 via the fifth purge line 23.

[0081] As can be seen from the structure described above, purge lines are installed in various parts of the main pipeline 3 and are eventually connected to the second vent line 19. Thus, after the test is completed, nitrogen and the aforementioned purge lines can be used to purge the main pipeline 3 in all directions to avoid hydrogen residue and help improve safety and reliability.

[0082] Furthermore, preferably, the nitrogen source 16 is a nitrogen cylinder filled with nitrogen, but of course, it is not limited to this.

[0083] In this embodiment, preferably, as follows: Figure 4 As shown, the solid hydrogen storage test system also includes a fourth flow meter 24 and a nitrogen purge valve 25; wherein, the fourth flow meter 24 and the nitrogen purge valve 25 are sequentially arranged on the first purge pipeline 17 connecting the second purge pipeline 18 and the main pipeline 3, and the fourth flow meter 24 is arranged on the side closer to the nitrogen source 16 relative to the nitrogen purge valve 25.

[0084] As can be seen from the structure described above, the flow rate of nitrogen can be detected by the fourth flow meter 24; the nitrogen purging hand valve 25 can be used to control the start or end of the purging.

[0085] In this embodiment, preferably, as follows: Figure 4 As shown, the solid hydrogen storage test system also includes a purge vent valve 26, which is located in the second vent line 19, and the connection point between the second purge line 18 and the second vent line 19 is located relative to the purge vent valve 26 near the vent end of the second vent line 19.

[0086] As can be seen from the structure described above, the purge vent valve 26 is used to control the opening or closing of the second purge pipeline 18.

[0087] In this embodiment, preferably, as follows: Figure 4 As shown, the solid hydrogen storage test system also includes a first safety valve 27, which is located in the second purge line 18.

[0088] As can be seen from the structure described above, the pressure of the second purging pipeline 18 is controlled by the first safety valve 27 to ensure safety and reliability.

[0089] In this embodiment, preferably, as follows: Figure 4 As shown, the solid hydrogen storage test system also includes a second safety valve 28, which is located in the third purge line 20.

[0090] As can be seen from the structure described above, the pressure of the third purging pipeline 20 is controlled by the second safety valve 28 to ensure safety and reliability.

[0091] In this embodiment, preferably, as follows: Figure 4 As shown, the solid hydrogen storage test system also includes a third safety valve 29, which is located in the fifth purge line 23.

[0092] As can be seen from the structure described above, the pressure of the fifth purging pipeline 23 is controlled by the third safety valve 29 to ensure safety and reliability.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A solid-state hydrogen storage device, characterized in that, include: The device includes a support member, a hydrogen storage tank, a heating member, and a fan. The support member has an installation cavity, and the hydrogen storage tank is installed within the installation cavity. The heating member is disposed on the side wall of the installation cavity and is used to heat the hydrogen storage tank. The support member has an air inlet and an air outlet communicating with the installation cavity. The fan is disposed on the support member and is connected to both the air inlet and the outside of the support member. The fan is used to blow air to cool the hydrogen storage tank.

2. The solid-state hydrogen storage device according to claim 1, characterized in that, The solid hydrogen storage device further includes an air guide component, which is disposed on the supporting component, and the fan is disposed on the air guide component; the air guide component forms an air guide channel and an exhaust port connected to the air guide channel, and the air guide channel is connected to the fan and the air inlet respectively; the air outlet is connected to the exhaust port.

3. The solid-state hydrogen storage device according to claim 2, characterized in that, The air inlet and the air outlet are the same air outlet and extend along the length of the supporting member, and the air guide member and the air guide channel thereon also extend along the length of the supporting member.

4. The solid-state hydrogen storage device according to claim 3, characterized in that, The same air vent is formed at the bottom of the supporting member, the air guide member is disposed below the supporting member, and the fan is disposed below the air guide member; the solid hydrogen storage device also includes a first support member and a second support member, and the first support member and the second support member are respectively supported at the bottom of both ends of the supporting member.

5. The solid-state hydrogen storage device according to any one of claims 1 to 4, characterized in that, The solid-state hydrogen storage device further includes a mounting component and a viewing window; wherein the mounting component is disposed on the supporting component, and the mounting component forms an observation channel communicating with the interior of the mounting cavity; the viewing window is mounted on the mounting component and covers the outer opening end of the observation channel, and the viewing window is used to observe the operation of the hydrogen storage tank inside the mounting cavity; and / or The solid-state hydrogen storage device further includes a temperature detection component, which is disposed on the supporting component, and the detection end of the temperature detection component extends close to the mounting cavity; and / or The supporting member has a mounting port communicating with the mounting cavity, and the hydrogen storage tank can be detachably mounted to the mounting cavity via the mounting port; the end cap of the hydrogen storage tank is located outside the mounting port and seals the mounting port; and / or The supporting member includes a first supporting part and a second supporting part; wherein, one side of the first supporting part is rotatably connected to one side of the second supporting part, and the other side of the first supporting part is detachably connected to the other side of the second supporting part by a buckle; the first supporting part forms a first groove extending through its top along its height direction and one end along its length direction, and the second supporting part forms a second groove extending through its bottom along its height direction and one end along its length direction, and the first groove and the second groove form the mounting cavity; the fan is disposed on the first supporting part or the second supporting part.

6. A solid-state hydrogen storage testing system, characterized in that, Includes the solid hydrogen storage device according to any one of claims 1 to 5.

7. The solid-state hydrogen storage testing system according to claim 6, characterized in that, The solid-state hydrogen storage testing system further includes a hydrogen source, a main pipeline, a first flow meter, a first manual valve, a first filter, a first automatic control valve, a pressure reducing valve, a second manual valve, a second flow meter, a second automatic control valve, a third flow meter, a connecting pipeline, a third automatic control valve, a second filter, a first vent pipeline, and a fourth automatic control valve; wherein, the hydrogen source is connected to the vent of the hydrogen storage tank of the solid-state hydrogen storage device through the main pipeline; The first flow meter, the first manual valve, the first filter, the first automatic control valve, the pressure reducing valve, the second manual valve, the second flow meter, the second automatic control valve, and the third flow meter are sequentially arranged along the main pipeline from the hydrogen source toward the hydrogen storage tank; the main pipeline connecting the second manual valve and the second flow meter is connected to one end of the connecting pipeline; The main pipeline connecting the second automatic control valve and the third flow meter is connected to the other end of the connecting pipeline; the third automatic control valve and the second filter are sequentially arranged in the connecting pipeline, and the third automatic control valve is arranged relative to the second filter and closer to the second manual valve; the main pipeline connecting the second flow meter and the second automatic control valve is connected to one end of the first vent pipeline; the fourth automatic control valve is arranged in the first vent pipeline.

8. The solid-state hydrogen storage testing system according to claim 7, characterized in that, The solid-state hydrogen storage testing system further includes a nitrogen source, a first purge line, a second purge line, a second vent line, a third purge line, a fourth purge line, and a fifth purge line; wherein, the nitrogen source is connected to the main pipeline connecting the hydrogen source and the first flow meter through the first purge line; the main pipeline connecting the first purge line and the first flow meter is connected to one end of the second vent line; The second purge line is connected to the first purge line and the second vent line respectively; the main line connecting the pressure reducing valve and the second hand valve is connected to one end of the third purge line; the main line connecting the connecting line and the third flow meter is connected to one end of the fifth purge line; the other end of the third purge line, the other end of the first vent line, and the other end of the fifth purge line are all connected to the second vent line via the fifth purge line.

9. The solid-state hydrogen storage testing system according to claim 8, characterized in that, The solid hydrogen storage testing system also includes a fourth flow meter and a nitrogen purge valve; wherein, the fourth flow meter and the nitrogen purge valve are sequentially arranged on the first purge pipeline that connects the second purge pipeline and the main pipeline, and the fourth flow meter is arranged relative to the nitrogen purge valve closer to the nitrogen source side.

10. The solid-state hydrogen storage testing system according to claim 8, characterized in that, The solid-state hydrogen storage testing system further includes a purge vent valve, which is disposed in the second vent line, and the connection point between the second purge line and the second vent line is positioned relative to the vent end of the purge vent valve near the second vent line; and / or The solid-state hydrogen storage testing system further includes a first safety valve, which is disposed in the second purge line; and / or The solid-state hydrogen storage testing system further includes a second safety valve, which is located in the third purge line; and / or The solid-state hydrogen storage testing system also includes a third safety valve, which is located in the fifth purge line.

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