Hydrogen circulation heat exchange solid hydrogen storage and discharge container

Abstract

The invention discloses a hydrogen circulation heat exchange solid hydrogen storage and release container which mainly comprises a hydrogen storage and release container body, a hydrogen inlet and outlet, a plurality of first-type hydrogen pipes, second-type hydrogen pipes and an expansion pipe. The interior of the hydrogen storage and release container main body is divided into three cavities, namely a first cavity, a second cavity and a third cavity, by a first partition plate and a second partition plate. The hydrogen pipe and the expansion pipe are both installed in the second cavity, and a ventilation opening is formed in the wall of the hydrogen pipe. The first type of hydrogen pipes and the second type of hydrogen pipes are arranged in a staggered manner, so that the circulation distance of hydrogen in the hydrogen storage material is effectively shortened, the flow resistance is reduced, the hydrogen is easier to permeate in the hydrogen storage material, and the heat exchange capacity between the hydrogen and the hydrogen storage material is enhanced. The expansion pipe can compensate the expansion of the hydrogen storage material, reduce the internal stress of the hydrogen storage material and relieve the pressure of the hydrogen storage material on the shell of the hydrogen storage and release container, so that the container structure is prevented from being damaged, and the hydrogen charging and discharging speed is prevented from being reduced due to overlarge local density of the hydrogen storage material.

Description

Technical Field

[0001] This invention relates to a solid hydrogen storage container with hydrogen circulation and heat exchange, belonging to the field of solid hydrogen storage technology. Background Technology

[0002] Solid-state hydrogen storage is a technology that utilizes the physical or chemical interaction between hydrogen storage materials and hydrogen to store hydrogen in a solid form. Due to its advantages of high volumetric hydrogen storage density, good safety, and high hydrogen purity, solid-state hydrogen storage technology has become a research hotspot in the field of hydrogen energy storage.

[0003] Solid-state hydrogen storage materials exhibit significant thermal effects during hydrogen absorption and desorption. Absorption releases a large amount of heat; if this heat cannot be dissipated promptly, the temperature of the storage material will rise, reducing the absorption rate and storage capacity. Conversely, desorption requires the absorption of a large amount of heat; if this heat is not replenished in time, the temperature of the storage material will drop, inhibiting the continued desorption reaction. Therefore, designing a solid-state hydrogen storage / desorption container that achieves efficient heat exchange while ensuring uniform hydrogen distribution and sufficient contact with the storage material is crucial for improving the practicality of solid-state hydrogen storage technology.

[0004] Patent No. ZL202411603853.4 discloses a hydrogen-heated solid-state hydrogen storage device and a solid-state hydrogen storage system. The solid-state hydrogen storage device includes a hydrogen inlet, a hydrogen diffusion section, several reaction tubes, a hydrogen collection section, and a hydrogen outlet. The reaction tubes are located between the hydrogen diffusion section and the hydrogen collection section, and their interiors are configured to both fill the hydrogen storage material and serve as part of the hydrogen circulation channel. The reaction tubes in this patent are double-layered, with solid hydrogen storage material filled between the inner and outer layers. This double-layered tube has high manufacturing costs, but the amount of solid hydrogen storage material is small, resulting in a long hydrogen flow distance within the storage material and high flow resistance. Summary of the Invention

[0005] The main objective of this invention is to design a hydrogen circulation heat exchange solid hydrogen storage and release container, which shortens the flow distance of hydrogen in the hydrogen storage material, reduces the hydrogen flow resistance, and thus improves the hydrogen filling and releasing characteristics of the hydrogen storage material.

[0006] To achieve the above objectives, the present invention provides a hydrogen circulation heat exchange solid hydrogen storage container, comprising: The main body of the hydrogen storage container is divided into three cavities by a first partition and a second partition: a first cavity, a second cavity, and a third cavity, which are arranged sequentially along the axis of the hydrogen storage container. The first cavity and the third cavity are located at opposite ends of the main body of the hydrogen storage container, and the second cavity is located between the first cavity and the third cavity. The second cavity is used to fill solid hydrogen storage material. The first hydrogen inlet and outlet are installed at the first end of the main body of the hydrogen storage container and are connected to the first cavity. The second hydrogen inlet and outlet are installed at the second end of the main body of the hydrogen storage container and are connected to the third cavity; Several type I hydrogen tubes are embedded in the second cavity; the first end of the type I hydrogen tube passes through the first partition, and the first end of the type I hydrogen tube has an opening that communicates with the first cavity; the tail end of the type I hydrogen tube is closed; and the tube wall of each type I hydrogen tube has multiple vent holes. Several type II hydrogen tubes are embedded in a second cavity; the first end of the type II hydrogen tube passes through a second partition, and the first end of the type II hydrogen tube has an opening that communicates with a third cavity; the tail end of the type II hydrogen tube is closed; and each type II hydrogen tube has multiple vent holes in its tube wall.

[0007] In some embodiments, the first hydrogen inlet and outlet and the second hydrogen inlet and outlet have the same pipe diameter and interface type; the first type of hydrogen pipe and the second type of hydrogen pipe have the same pipe diameter.

[0008] In some embodiments, the first type of hydrogen pipe and the second type of hydrogen pipe are evenly and alternately arranged in the second cavity.

[0009] In some embodiments, both the first type of hydrogen pipe and the second type of hydrogen pipe are parallel to the axis of the hydrogen storage container body.

[0010] In some embodiments, the tail end of the first type of hydrogen tube passes through the second partition, and the tail end of the second type of hydrogen tube passes through the first partition.

[0011] In some embodiments, filters are provided at the vent holes of both the first type of hydrogen pipe and the second type of hydrogen pipe.

[0012] In some embodiments, the second cavity is further provided with multiple expansion tubes, which are parallel to the axis of the hydrogen storage container body.

[0013] In some embodiments, the expansion tube includes a first type of expansion tube and a second type of expansion tube; the first type of expansion tube is installed inside the hydrogen storage container and its diameter is larger than that of the hydrogen storage container; the first type of expansion tube is installed near the inner wall of the hydrogen storage container.

[0014] In some embodiments, the first type of hydrogen tube and the second type of hydrogen tube are manufactured using the following method: Select seamless steel pipes of suitable length; Ventilation holes are evenly opened in the wall of the seamless steel pipe, and filter screens are installed at the ventilation holes. The seamless steel pipe is closed at one end.

[0015] In some embodiments, the first type of hydrogen pipe and the second type of hydrogen pipe are made of sintered metal materials.

[0016] The beneficial effects of the present invention: The hydrogen circulation heat exchange solid hydrogen storage container provided by the present invention overcomes the defects of existing solid hydrogen storage containers such as low heat exchange efficiency, uneven hydrogen distribution, poor structural stability and insufficient expansion compensation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external structure of a hydrogen circulation heat exchange solid hydrogen storage container provided in a preferred embodiment of the present invention.

[0018] Figure 2 yes Figure 1 The diagram shows a cross-sectional view of the structure from the AA perspective.

[0019] Figure 3 yes Figure 2 The diagram shows a cross-sectional view of the structure from the BB perspective.

[0020] The meanings of the markings in the above attached diagrams are as follows: 1. First hydrogen inlet and outlet 2 First cavity 3 First partition 4. Type I expansion tube 5 Type I hydrogen tube 6. Type II hydrogen tube 7. Type II Expansion Tube 8 Second cavity 9 Second partition 10 Third cavity 11 Second hydrogen inlet and outlet Detailed Implementation The terms "first," "second," and similar words used in this specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. In the description of this patent, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this patent, words such as "comprising" or "having" mean that the elements or objects preceding "comprising" or "having" cover the elements or objects listed after "comprising" or "having" and their equivalents, and do not exclude other elements or objects.

[0022] In the description of this patent, when an element is referred to as being "fixed to / mounted on (or similarly)" another element, it can be directly on the other element or there may be intervening elements. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be intervening elements. Conversely, when an element is referred to as being "directly on" another element, there are no intervening elements.

[0023] In the description of this patent, the terms "front", "rear", "upper", "lower", "left", "right", "horizontal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "clockwise", "axial", "radial", "circumferential", 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 patent 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 patent.

[0024] In existing solid-state hydrogen storage containers, the hydrogen inlet and outlet are mostly located at one end of the container, and hydrogen enters the hydrogen storage material area through a single pipeline. Due to the inherent permeability resistance of the hydrogen storage material, hydrogen tends to accumulate near the inlet and outlet, preferentially reacting with the hydrogen storage material in that area, while the reaction is insufficient in areas far from the inlet and outlet, resulting in low utilization of the hydrogen storage material.

[0025] Solid hydrogen storage materials undergo 5% to 20% volume expansion and contraction during hydrogen absorption and desorption, which can cause stress impacts on the internal structure of the container. Currently, the hydrogen pipelines inside solid hydrogen storage containers are mostly fixed connections, lacking effective buffer structures. After long-term use, problems such as pipeline loosening, breakage, or seal failure can easily occur. Furthermore, hydrogen storage material powder can easily enter the pipeline through the vent holes, causing blockages and further shortening the service life of the hydrogen storage container.

[0026] The volume expansion of hydrogen storage materials not only impacts the internal structure but also exerts enormous pressure on the container's inner walls. Existing containers mostly rely on the strength of the outer shell to withstand this pressure, lacking dedicated expansion compensation structures. When the expansion of the hydrogen storage material is significant, it can lead to container shell deformation, weld cracking, and even safety accidents such as hydrogen leaks.

[0027] This invention provides a solid-state hydrogen storage and discharging container with hydrogen circulation and heat exchange. The container features multiple hydrogen pipes extending deep into the hydrogen storage material at both the hydrogen inlet and outlet sides. Hydrogen, acting as a heat transfer medium, flows from the inlet side through the storage material to the outlet side. This flowing hydrogen enhances heat exchange during the hydrogen charging and discharging process, overcoming the shortcomings of low thermal conductivity and poor heat transfer in solid-state hydrogen storage materials. The uniformly distributed hydrogen pipes extending deep into the storage material shorten the flow distance of hydrogen within the material, reducing flow resistance and facilitating hydrogen permeation. This also enhances the heat exchange capacity between the hydrogen and the storage material, thereby improving the charging and discharging characteristics of the solid-state hydrogen storage and discharging container.

[0028] Figure 1 The diagram shown is a schematic representation of the external structure of a hydrogen circulation heat exchange solid hydrogen storage container according to a preferred embodiment of the present invention. Figure 2 and Figure 3 The diagram shown is a schematic of its internal structure, in which Figure 2 It shows the cross-sectional structure. Figure 3 The longitudinal cross-sectional view is shown. The external structure of the solid hydrogen storage container is the outer shell of the hydrogen storage container. No additional air duct design is required. Only mature insulation technology is needed to insulate the hydrogen storage container, thereby minimizing manufacturing costs and improving equipment economics. Figure 1 and Figure 3 The solid hydrogen storage container shown is horizontal and can be designed for horizontal or vertical installation according to actual usage requirements, with a matching support base designed for it.

[0029] from Figure 3 It can be seen that the hydrogen circulation heat exchange solid hydrogen storage container includes a hydrogen storage container body, a first hydrogen inlet / outlet 1, a second hydrogen inlet / outlet 11, several first-type hydrogen pipes 5, several second-type hydrogen pipes 6, several first-type expansion pipes 4, several second-type expansion pipes 7, and other components.

[0030] The solid hydrogen storage container has a cylindrical body made of stainless steel, with a wall thickness determined by the design pressure (typically 1–3 MPa), generally 5–10 mm. Both ends of the container body are spherical, and an internal first partition 3 and a second partition 9 are installed. Both partitions are circular metal plates matching the cross-section of the container body. The partitions are made of the same material as the container body and have a thickness of 3–5 mm. The partitions have through holes for hydrogen pipelines.

[0031] The solid hydrogen storage container has a first hydrogen inlet / outlet 1 and a second hydrogen inlet / outlet 11 at its two ends. Both have identical structures, and their pipe diameters are determined based on the hydrogen storage / discharge rate. The hydrogen inlet / outlet interfaces use threaded connections, flange connections, or compression fittings for easy connection to external hydrogen systems. Preferably, the first hydrogen inlet / outlet 1 and the second hydrogen inlet / outlet 11 have the same pipe diameter, but they can be interchanged during system connection depending on the operating requirements: if the first hydrogen inlet / outlet 1 is used as the hydrogen inlet, then the second hydrogen inlet / outlet 11 is used as the hydrogen outlet; or, if the second hydrogen inlet 11 is used as the hydrogen inlet, then the first hydrogen inlet / outlet 1 is used as the hydrogen outlet. Preferably, the first hydrogen inlet / outlet 1 is installed at the first end of the container body (…). Figure 1 The center of the left end (as shown) is fixed to the solid hydrogen storage container body by welding, and its internal channel is directly connected to the first cavity 2 for hydrogen input or output. The second hydrogen inlet / outlet 11 is installed at the second end of the container body (as shown). Figure 1 The center position of the right end (shown) is symmetrical to the position of the first hydrogen inlet / outlet 1, and is also fixed to the solid hydrogen storage container body by welding. Its internal channel is connected to the third cavity 10, and its function is complementary to that of the first hydrogen inlet / outlet 1, forming a one-in-one-outflow path for hydrogen. Preferably, a one-way valve and a pressure sensor (not shown in the figure) can be equipped on the first hydrogen inlet / outlet 1 and the second hydrogen inlet / outlet 11. The one-way valve is used to prevent hydrogen backflow, and the pressure sensor is used to monitor the pressure in the cavity in real time to ensure that the hydrogen storage and release process is safe and controllable.

[0032] The first partition 3 and the second partition 9 divide the interior of the solid hydrogen storage container into three independent cavities along the axial direction: the first cavity 2, the second cavity 8 and the third cavity 10. The length ratio of the three cavities is preferably 1:8:1.

[0033] The first cavity 2 is located at the first end of the solid hydrogen storage container body. Figure 3 The third chamber 10 (shown at the left end) has a volume of 5% to 10% of the total volume of the hydrogen storage container. Its main function is to receive hydrogen from the first hydrogen inlet / outlet 1 and disperse the hydrogen. Figure 3 The right end (shown) has a volume equivalent to the first chamber 2, and its function is to allow hydrogen gas to converge and then be introduced into the second hydrogen inlet / outlet 11. The second chamber 8 is located between the first chamber 2 and the third chamber 10, and its volume is 80% to 90% of the total volume of the solid hydrogen storage container. It is the core area for installing hydrogen pipes, expansion pipes, and filling with solid hydrogen storage material. The interior of the second chamber 8, except for the hydrogen pipes and expansion pipes, is filled with solid hydrogen storage material.

[0034] The first-type hydrogen pipe 5 is the core component embedded within the second cavity 8. Its main function is to uniformly transport hydrogen from the first cavity 2 to the hydrogen storage material, while also serving as a heat exchange channel to achieve heat exchange between the hydrogen and the solid hydrogen storage material. It is made of seamless stainless steel pipe or sintered metal material, with the same diameter as the second-type hydrogen pipe 6 to ensure balanced hydrogen flow resistance. The first end of the first-type hydrogen pipe 5 ( Figure 3 The left end (shown) is open, with the first end passing through the through hole on the first partition 3 and slightly protruding, communicating with the first cavity 2. The tail end of the first type hydrogen pipe 5 ( Figure 3 The right end (as shown) is sealed by welding or threaded plugging to ensure that hydrogen gas flows out only through the vent holes in its pipe wall. Preferably, the tail end of the first type of hydrogen pipe 5 has a spherical structure and protrudes from the second partition 9, as shown in Figure 3. Both ends of the hydrogen pipe are effectively supported by the partitions, improving structural stability.

[0035] The first type of hydrogen pipe 5 has multiple evenly distributed vent holes (not shown in the figure) on its wall. The diameter of the vent holes is 0.5–1.0 mm, and the spacing between the holes is 5–10 mm. Preferably, the vent holes are spirally distributed to ensure that hydrogen can be released evenly along the length of the pipe. A filter screen is provided at the vent holes. The pore size of the filter screen is set according to the particle size of the hydrogen storage material powder. The filter screen is required to allow hydrogen to pass through while effectively preventing the hydrogen storage material powder from entering the hydrogen pipe. Alternatively, the hydrogen pipe can be made of sintered metal material. The vent holes on the hydrogen pipe are pre-drilled in the sintered blank and retained after sintering.

[0036] The second type of hydrogen pipe 6 corresponds structurally to the first type of hydrogen pipe 5, and is mainly used to collect the hydrogen released from the hydrogen storage material into the third cavity 10. The material and diameter of the second type of hydrogen pipe 6 are exactly the same as those of the first type of hydrogen pipe 5 to ensure consistent hydrogen flow characteristics. The first end of the second type of hydrogen pipe 6 ( Figure 3 The right end shown passes through the through hole in the second partition 9 and communicates with the third cavity 10. The tail end of the second type hydrogen pipe 6 (… Figure 3 The left end shown is closed, passes through the through hole on the first partition 3 and is fixed. The second type of hydrogen pipe 6 also has vent holes, which are the same in size, shape and number as the vent holes of the first type of hydrogen pipe 5. The vent holes are distributed in a spiral shape and the filter screen specifications are the same.

[0037] Multiple type I hydrogen pipes 5 and type II hydrogen pipes 6 are evenly and staggered within the second cavity 8. Each hydrogen pipe extends deep into the hydrogen storage material and is arranged in an equilateral triangle or square pattern. Alternatively, type I hydrogen pipes 5 and type II hydrogen pipes 6 can be distributed in alternating layers. These arrangements effectively shorten the distance between any point within the hydrogen storage material and either type I hydrogen pipe 5 or type II hydrogen pipe 6, thus reducing the flow distance of hydrogen within the hydrogen storage material. This reduces the flow resistance of hydrogen within the hydrogen storage container, making it easier for hydrogen and the hydrogen storage material to exchange heat, thereby improving the hydrogen filling and discharging performance of the hydrogen storage container.

[0038] The second chamber 8 also contains multiple expansion tubes, all made of highly elastic stainless steel or aluminum. When the diameter of the expansion tubes is small, thin-walled aluminum tubes should be used because aluminum has low strength and is more easily deformed by external forces. The expansion tubes are parallel to and evenly distributed along the axis of the hydrogen storage container body, and their length is the same as that of the second chamber 8. The thin walls of the expansion tubes allow for some deformation. When the hydrogen storage material expands in volume during hydrogen absorption and desorption, the expansion tube walls are compressed inward to compensate for the expansion of the hydrogen storage material, effectively reducing the internal stress of the solid hydrogen storage material and alleviating the pressure of the hydrogen storage material on the shell of the hydrogen storage container. This avoids damage to the structure of the hydrogen storage container and prevents the situation where the local material density is too high, causing a decrease in the hydrogen charging and decharging rate.

[0039] Expansion tubes include a first type of expansion tube 4 and a second type of expansion tube 7, such as Figure 2 and Figure 3 As shown. Figure 3 The number of expansion tubes shown is for illustrative purposes only and does not represent the actual number. The distribution pattern can also be changed according to actual conditions. The cross-section of the expansion tubes can be... Figure 3 The circle shown can also be square or other shapes. The two types of expansion tubes have different diameters. The second type of expansion tube 7 has a larger diameter and is installed in the internal region of the second cavity 8, mainly used to absorb the expansion stress in the central region of the solid hydrogen storage container. The first type of expansion tube 4 has a smaller diameter and is installed near the inner wall of the solid hydrogen storage container. Its diameter is smaller than that of the second type of expansion tube 7, and it is used to absorb the expansion stress in the edge region.

[0040] To improve the practicality and safety of solid hydrogen storage containers, they also include auxiliary structures such as temperature monitoring and pressure protection.

[0041] Hydrogen filling and discharging in a solid-state hydrogen storage container with hydrogen circulation heat exchange can occur at the same location or at different locations. During filling, some hydrogen is absorbed by the storage material, while the rest circulates, dissipating heat from the storage material and accelerating the filling speed. During discharging, high-temperature hydrogen flows through the storage material, providing the necessary heat for the discharging process. The mixed hydrogen then flows out from the hydrogen outlet of the solid-state hydrogen storage container, with some hydrogen being supplied externally and the rest circulating.

[0042] The hydrogen and heat flow during hydrogen charging is as follows: Low-temperature hydrogen gas enters the second chamber 8 sequentially through the first hydrogen inlet / outlet 1, the first chamber 2, and the first type of hydrogen pipe 5. Part of the hydrogen is absorbed by the hydrogen storage material within the second chamber 8, while the remaining hydrogen is converted into high-temperature hydrogen by the storage material. This high-temperature hydrogen then travels through the second type of hydrogen pipe 6 to the third chamber 10 and exits through the second hydrogen inlet / outlet 11. The heat released by the hydrogen storage material after absorbing hydrogen is carried away by the hydrogen flowing out of the second hydrogen inlet / outlet 11, thus dissipating heat from the storage material and accelerating the charging process. This design ensures that the hydrogen flowing in from the first hydrogen inlet / outlet 1 must exchange heat with the storage material before exiting through the second hydrogen inlet / outlet 11, while also effectively reducing the flow distance of the hydrogen within the storage material and decreasing the flow resistance, thereby promoting hydrogen circulation and heat exchange.

[0043] The flow of hydrogen and heat during hydrogen release is as follows: High-temperature hydrogen gas enters the second chamber 8 successively through the second hydrogen inlet / outlet 11, the third chamber 10, and the second-type hydrogen pipe 6. The hydrogen storage material in the second chamber 8 absorbs the heat from the high-temperature hydrogen gas and begins to release hydrogen. The released hydrogen gas mixes with the high-temperature hydrogen gas to form a mixed hydrogen gas, which reaches the first chamber 2 through the first-type hydrogen pipe 5 and flows out from the first hydrogen inlet / outlet 1. Part of the mixed hydrogen gas supplies hydrogen to the outside of the system, while the rest continues to circulate. The heat carried by the high-temperature hydrogen gas is absorbed by the hydrogen storage material, providing the heat required for further hydrogen release. The first-type hydrogen pipe 5 and the second-type hydrogen pipe 6, which extend deep into the hydrogen storage material, effectively shorten the flow distance of hydrogen within the material, reduce flow resistance, make it easier for hydrogen to permeate within the material, and enhance the heat exchange capacity between the hydrogen gas and the storage material.

[0044] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A hydrogen circulation and heat exchange solid hydrogen storage container, characterized in that, include: The main body of the hydrogen storage container is divided into three cavities by a first partition and a second partition: a first cavity, a second cavity, and a third cavity, which are arranged sequentially along the axis of the hydrogen storage container; wherein, the first cavity and the third cavity are located at opposite ends of the main body of the hydrogen storage container, and the second cavity is located between the first cavity and the third cavity, and the second cavity is used to fill solid hydrogen storage material; The first hydrogen inlet and outlet are installed at the first end of the main body of the hydrogen storage container and are connected to the first cavity. The second hydrogen inlet and outlet are installed at the second end of the main body of the hydrogen storage container and are connected to the third cavity; Several first-type hydrogen tubes are embedded in the second cavity; the first end of the first-type hydrogen tube passes through the first partition, and the first end of the first-type hydrogen tube has an opening that communicates with the first cavity; the tail end of the first-type hydrogen tube is closed; and each first-type hydrogen tube has multiple vent holes in its tube wall. Several second-type hydrogen tubes are embedded in the second cavity; the first end of the second-type hydrogen tube passes through the second partition, and the first end of the second-type hydrogen tube has an opening that communicates with the third cavity; the tail end of the second-type hydrogen tube is closed; and each second-type hydrogen tube has multiple vent holes in its tube wall.

2. The hydrogen circulation heat exchange solid hydrogen storage container according to claim 1, characterized in that, The first hydrogen inlet and outlet and the second hydrogen inlet and outlet have the same pipe diameter and interface type; the first type of hydrogen pipe and the second type of hydrogen pipe have the same pipe diameter.

3. A hydrogen circulation heat exchange solid hydrogen storage container according to claim 2, characterized in that, The first type of hydrogen pipe and the second type of hydrogen pipe are evenly and alternately arranged in the second cavity.

4. A hydrogen circulation heat exchange solid hydrogen storage container according to claim 3, characterized in that, Both the first type of hydrogen pipe and the second type of hydrogen pipe are parallel to the axis of the main body of the hydrogen storage container.

5. A hydrogen circulation heat exchange solid hydrogen storage container according to claim 1, characterized in that, The tail end of the first type of hydrogen tube passes through the second partition, and the tail end of the second type of hydrogen tube passes through the first partition.

6. A hydrogen circulation heat exchange solid hydrogen storage container according to claim 1, characterized in that, Both the first type of hydrogen pipe and the second type of hydrogen pipe have filters installed at their vent holes.

7. A hydrogen circulation heat exchange solid hydrogen storage container according to claim 1, characterized in that, The second cavity is also provided with multiple expansion tubes, which are parallel to the axis of the main body of the hydrogen storage container.

8. A hydrogen circulation heat exchange solid hydrogen storage container according to claim 7, characterized in that, The expansion tube includes a first type of expansion tube and a second type of expansion tube; the second type of expansion tube is installed inside the hydrogen storage container and its diameter is larger than that of the first type of expansion tube; the first type of expansion tube is installed near the inner wall of the hydrogen storage container.

9. A hydrogen circulation heat exchange solid hydrogen storage container according to claim 1, characterized in that, The first type of hydrogen tube and the second type of hydrogen tube are manufactured by the following method: Select seamless steel pipes of suitable length; Ventilation holes are evenly opened in the wall of the seamless steel pipe, and filter screens are installed at the ventilation holes; The seamless steel pipe is closed at one end.

10. A hydrogen circulation heat exchange solid hydrogen storage container according to claim 1, characterized in that, Both the first type of hydrogen pipe and the second type of hydrogen pipe are made of sintered metal materials.

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