Metal hydride hydrogen storage container with easy disassembly and effective heat exchange

Abstract

The present invention relates to a metal hydride hydrogen storage container which is easy to disassemble and can effectively exchange heat, and relates to the technical field of hydrogen storage containers, and in particular to a metal hydride hydrogen storage container which is easy to disassemble and can effectively exchange heat. The present invention comprises: a hydrogen storage alloy tank, a sleeve, a flange and a hydrogen valve; the hydrogen storage alloy tank is installed in the sleeve, and the flange is sealed and connected by a rubber gasket and flange bolts and nuts; a hydrogen valve is installed at the center of the flange; and the interior of the hydrogen storage alloy tank is filled with hydrogen storage alloy powder. The technical solution of the present invention solves the problems in the prior art that the hydrogen storage alloy generates stress on the inner wall of the container due to lattice expansion during the hydrogen absorption process, causing the container to deform and affecting the service life of the container; the hydrogen storage alloy has poor long-term cycle stability and needs to be frequently replaced; the hydrogen storage alloy has poor thermal conductivity and the hydrogen storage device needs to transfer heat to the outside world.

Description

Technical Field

[0001] The present invention relates to the technical field of hydrogen storage containers, and in particular to a metal hydride hydrogen storage container which is easy to disassemble and assemble and can effectively perform heat exchange. Background Art

[0002] With the expansion of the global population and the rapid development of the economy, the energy crisis is becoming increasingly serious. The energy industry is an important benchmark for measuring a country's economic strength and plays a very important role in the lives of its people. At present, my country's energy distribution and supply are unbalanced, the energy structure and layout are unreasonable, the overall energy utilization rate is low, and the consumption of primary energy such as coal and fossils is the main source. The large-scale combustion of these energy sources causes serious environmental pollution. With the continuous advancement of economic development and industrialization, the consumption of fossil energy has maintained a sustained growth trend, and the resulting environmental pollution and energy shortages have become more and more the focus of international attention. Hydrogen energy, as the most promising secondary energy in this century, has the advantages of a wide range of sources, clean and environmentally friendly, and renewable, and its development and utilization have attracted much attention.

[0003] The storage methods of hydrogen energy mainly include low-temperature liquid hydrogen storage, high-pressure gaseous hydrogen storage, solid-state hydrogen storage and organic liquid hydrogen storage. Solid-state hydrogen storage is divided into metal hydride hydrogen storage and porous material hydrogen storage. Among them, low-temperature liquid hydrogen storage has very high requirements on the thermal insulation performance of the storage equipment, resulting in large additional energy consumption and high cost, which is not suitable for large-scale application; high-pressure gaseous hydrogen storage has safety hazards such as explosion and leakage; organic liquid hydrogen storage is costly, and the catalyst is easily poisoned, and the hydrogen absorption and desorption rate is low; the porous material hydrogen storage method has low and unstable hydrogen storage density and is greatly affected by material properties. Metal hydride hydrogen storage does not require high-pressure containers, is easy to operate, and greatly improves the safety, reliability and maintenance convenience of hydrogen energy utilization. It is the most promising hydrogen storage method.

[0004] Metal hydride hydrogen storage containers are containers specially made for storing hydrogen, which are made by utilizing the property of hydrogen storage alloys to reversibly absorb / release hydrogen under certain temperature and pressure conditions. They generally consist of several parts: hydrogen storage alloys, carrying containers, heat transfer mechanisms and auxiliary equipment. They are currently widely used in many fields such as fuel cells and hydrogen-powered vehicles. The hydrogen storage alloy undergoes lattice expansion and contraction during the process of hydrogen absorption / desorption, which generates great stress inside the container, causing the container to deform, seriously affecting the service life of the hydrogen storage container. Secondly, hydrogen storage alloys have poor long-term cycle stability, and the alloys are frequently replaced during use. At the same time, hydrogen storage alloys have significant thermal effects during the process of hydrogen absorption / desorption, releasing heat when absorbing hydrogen and absorbing heat when releasing hydrogen. In addition, the thermal conductivity of hydrogen storage alloy powder is poor, and the thermal conductivity is generally 0.2-2W / (m·K). Therefore, when designing metal hydride hydrogen storage devices, the problem of effective heat transfer with the outside world should be considered.

[0005] In view of the problems existing in the above-mentioned prior art, it is very necessary to study and design a new type of metal hydride hydrogen storage container that is easy to disassemble and assemble and has effective heat exchange, so as to overcome the problems existing in the prior art. Summary of the invention

[0006] According to the technical problems proposed in the above-mentioned prior art, the hydrogen storage alloy generates stress on the inner wall of the container due to lattice expansion during hydrogen absorption, causing the container to deform and affecting the service life of the container; the hydrogen storage alloy has poor long-term cycle stability and needs to be replaced frequently; the hydrogen storage alloy has poor thermal conductivity and the hydrogen storage device needs to transfer heat to the outside world. A metal hydride hydrogen storage container is provided which is easy to disassemble and assemble and has effective heat exchange.

[0007] The technical means adopted by the present invention are as follows:

[0008] A metal hydride hydrogen storage container which is easy to disassemble and effectively exchanges heat, characterized in that the hydrogen storage container comprises: a hydrogen storage alloy tank, a sleeve, a flange and a hydrogen valve; the hydrogen storage alloy tank is installed in the sleeve and is sealed and connected by the flange through a rubber gasket and flange bolts and nuts; a hydrogen valve is installed at the center of the flange; the interior of the hydrogen storage alloy tank is filled with hydrogen storage alloy powder; the hydrogen storage alloy tank comprises: a tank body, a cover, and an air duct; the tank body is a cylindrical structure with a closed bottom and an open top; the air duct is welded to the center of the bottom of the tank body; a circular hole with the same outer diameter as the air duct is provided at the center of the cover; the cover and the tank body are sealed and connected to each other through cover bolts to form a hydrogen storage alloy tank; a circulating water channel is provided on the inner wall of the sleeve for heat exchange (heating or cooling) of the hydrogen storage container; a positioning structure is provided on the outer wall of the hydrogen storage alloy tank and the inner wall of the sleeve for positioning and fixing the hydrogen storage alloy tank inside the sleeve.

[0009] Furthermore, the circulating water circuit includes: an axial water channel, a water outlet, an annular water channel and a water inlet; 4 pairs of axial water channels are evenly distributed on the inner wall of the sleeve, with a height 10 mm lower than the hydrogen storage alloy tank and a minimum inner diameter equal to that of the hydrogen storage alloy tank; an annular water channel is respectively arranged at the upper and lower ends of the inner wall of the sleeve, which is 10 mm high and has an inner diameter 20 mm larger than the tank body; the axial water channel is connected to the annular water channel, and is connected to the water inlet and water outlet arranged at the lower and upper parts of the sleeve to form a circulating water circuit; the axial water channel and the annular water channel are made of stainless steel with a thickness of 2 mm; the water outlet and the water inlet are made of stainless steel pipes with a thickness of 3 mm.

[0010] Furthermore, the positioning structure includes: a boss arranged on the outside of the tank body and a slide arranged inside the sleeve; four stainless steel bosses with an outer diameter 20 mm larger than the tank body are evenly axially welded on the outer wall of the tank body; the slide is composed of 4 pairs of axial water channels evenly distributed inside the sleeve, a slide is formed between each pair of axial water channels, and the diameter of the slide is 2 mm larger than the outer diameter of the boss; the width is consistent with the boss.

[0011] Furthermore, the sleeve wall thickness is 4 mm; the inner diameter is 40 mm larger than the outer diameter of the hydrogen storage alloy tank.

[0012] Furthermore, the sleeve is 3-6 mm higher than the airway tube.

[0013] Furthermore, the air guide tube is 10 mm higher than the cover and has an outer diameter of 15 mm.

[0014] Furthermore, a hook ring is provided on the cover. The hook ring is made of stainless steel and is 10 mm higher than the cover.

[0015] Furthermore, a sealing filter is provided at the top of the air guide pipe; a flange filter is installed on the hydrogen valve; the thickness of the flange filter and the filter is 1-1.5mm; the filtering accuracy is 0-0.5μm.

[0016] Furthermore, the tank body, the sealing cover and the air guide tube are made of stainless steel sintered plates with a filtration accuracy of 2-5 μm and a wall thickness of 3 mm, which are used to block the hydrogen storage alloy powder 201 and ensure that the hydrogen and the hydrogen storage alloy powder 201 have a maximum contact area.

[0017] Furthermore, the hydrogen storage alloy powder is rare earth AB5 type, titanium AB type or titanium AB2 type; the filling height is not less than 50% and not more than 80% of the tank body.

[0018] When the metal hydride hydrogen storage container absorbs / releases hydrogen, the circulating cooling / hot water enters the annular water channel at the bottom of the container through the water inlet, rises to the annular water channel at the top of the container through the axial water channel, and then is discharged from the container through the water outlet. At the same time, the groove in the middle of the axial water channel is a slideway. The advantages of this structure are: the slideway and the boss are of the same size, and the slideway facilitates the connection and fixation of the hydrogen storage alloy tank and the sleeve; in addition, the raised axial water channel contacts the tank body, which improves the heat exchange capacity of the entire container, thereby effectively improving the hydrogen absorption / release performance of the metal hydride hydrogen storage container.

[0019] When the amount of hydrogen absorbed / released by the metal hydride hydrogen storage container decreases, the hydrogen storage alloy powder reaches the end of its service life. Evacuate the container, open the flange, take out the hydrogen storage alloy can with an iron hook, open the cover and replace the hydrogen storage alloy powder. Reseal the container and use it again. The advantages of this container are: the hydrogen storage alloy powder can be replaced according to the amount of hydrogen absorbed / released by the container, so that the metal hydride hydrogen storage container maintains a certain amount of hydrogen absorbed / released; at the same time, the sleeve does not directly contact the hydrogen storage alloy powder and is not affected by the stress generated when the hydrogen storage alloy powder absorbs / releases hydrogen, thereby increasing the service life of the sleeve.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. The metal hydride hydrogen storage container provided by the present invention is easy to disassemble and assemble and has effective heat exchange, is easy to load and unload, the hydrogen storage alloy tank and the sleeve are easy to separate, and the hook ring is convenient for pulling out the hydrogen storage alloy tank;

[0022] 2. The metal hydride hydrogen storage container provided by the present invention is easy to disassemble and assemble and has effective heat exchange. Its sleeve does not directly contact the hydrogen storage alloy powder and is not affected by the stress generated by the hydrogen storage alloy absorbing / desorbing hydrogen, thereby enhancing the service life of the sleeve.

[0023] 3. The metal hydride hydrogen storage container provided by the present invention is easy to disassemble and assemble and has effective heat exchange. Its hydrogen storage alloy tank is easy to fill and replace hydrogen storage alloy powder. The air guide pipe is welded to the bottom of the hydrogen storage alloy tank and is not welded to the cover. The cover can be directly opened and closed to fill and replace the hydrogen storage alloy powder.

[0024] 4. The metal hydride hydrogen storage container provided by the present invention is easy to disassemble and effectively exchange heat. Its hydrogen storage alloy tank is made of stainless steel sintered plate. Hydrogen is distributed in the annular area outside the tank body, the top area and the air guide pipe, which increases the contact area between the hydrogen storage alloy powder and hydrogen and improves the hydrogen absorption / release efficiency.

[0025] 5. The metal hydride hydrogen storage container provided by the present invention is easy to disassemble and effectively exchange heat. Its axial water channel contacts the hydrogen storage alloy tank, which enhances the heat exchange capacity of the hydrogen storage alloy powder and improves the hydrogen absorption / desorption efficiency. At the same time, the groove in the middle of the axial water channel is a slideway, which is convenient for the connection and fixation of the hydrogen storage alloy tank and the sleeve, killing two birds with one stone.

[0026] In summary, the technical solution of the present invention solves the problems in the prior art that hydrogen storage alloys generate stress on the inner wall of the container due to lattice expansion during hydrogen absorption, causing the container to deform and affecting the service life of the container; the hydrogen storage alloys have poor long-term cycle stability and need to be replaced frequently; the hydrogen storage alloys have poor thermal conductivity and the hydrogen storage device needs to transfer heat to the outside world. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 It is a structural cross-sectional view of the sleeve and flange seal of the present invention;

[0029] Figure 2 It is a schematic diagram of the sleeve appearance of the present invention;

[0030] Figure 3 It is a cross-sectional view of the structure of the hydrogen storage alloy tank of the present invention;

[0031] Figure 4 It is a schematic diagram of the appearance of the hydrogen storage alloy tank of the present invention.

[0032] In the figure: 100, sleeve 101, axial water channel 102, water outlet 103, flange 104, flange bolts and nuts 105, flange filter 106, hydrogen valve 107, rubber gasket 108, annular water channel 109, water inlet 110, slide 200, hydrogen storage alloy tank 201, hydrogen storage alloy powder 202, cover 203, air guide tube 204, cover filter 205, hook ring 206, cover bolt 207, boss 208, tank body. DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0036] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps described in these embodiments do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0037] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0038] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0039] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0040] As shown in the figure, the present invention provides a metal hydride hydrogen storage container which is easy to disassemble and effectively exchange heat, characterized in that the hydrogen storage container comprises: a hydrogen storage alloy tank 200, a sleeve 100, a flange 103 and a hydrogen valve 106; the hydrogen storage alloy tank 200 is installed in the sleeve 100, and is sealed and connected by the flange 103 through a rubber gasket 107 and flange bolts and nuts 104; the center of the flange 103 is equipped with a hydrogen valve 106; the interior of the hydrogen storage alloy tank 200 is equipped with hydrogen storage alloy powder 201;

[0041] The hydrogen storage alloy tank 200 is 280 mm high and 110 mm in outer diameter. The outer diameter of the boss 207 is 128 mm. The tank 208 is a cylindrical structure with a closed bottom and an open top. The air guide tube 203 is welded to the center of the bottom of the tank 208. A circular hole with the same outer diameter as the air guide tube 203 is provided at the center of the cover 202. The cover 202 and the tank 208 are sealed and connected to form the hydrogen storage alloy tank 200 through the cover bolts 206 to ensure that the hydrogen storage alloy powder will not seep into the middle of the hydrogen storage alloy tank 200 and the sleeve 100.

[0042] The sleeve 100 is 300 mm high, 150 mm in outer diameter, made of 304 stainless steel, 4 mm thick, and has a circulating water path on the inner wall for heat exchange (heating or cooling) of the hydrogen storage container; the inner diameter of the sleeve 100 is 40 mm larger than the outer diameter of the hydrogen storage alloy tank 200. The sleeve 100 is 3-6 mm higher than the air guide pipe 203.

[0043] Positioning structures are provided on the outer wall of the hydrogen storage alloy tank 200 and the inner wall of the sleeve 100 for positioning and fixing the hydrogen storage alloy tank 200 inside the sleeve 100 .

[0044] The circulating water circuit includes: an axial water channel 101, a water outlet 102, an annular water channel 108 and a water inlet 109; four pairs of axial water channels 101 are evenly distributed on the inner wall of the sleeve 100, with a height 10mm lower than that of the hydrogen storage alloy tank 200, and a minimum inner diameter equal to that of the hydrogen storage alloy tank 200; an annular water channel 108 is respectively arranged at the upper and lower ends of the inner wall of the sleeve 100, with a height of 10mm and an inner diameter 20mm larger than that of the tank body 208; the axial water channel 101 and The annular water channel 108 is connected and is connected with the water inlet 109 and the water outlet 102 arranged at the lower and upper parts of the sleeve 100 to form a circulating water circuit; the axial water channel 101 is 270 mm high and has a minimum inner diameter of 110 mm, the annular water channel 108 is 10 mm high, and the axial water channel 101 and the annular water channel 108 are made of stainless steel with a thickness of 2 mm; the water outlet 102 and the water inlet 109 are made of stainless steel pipes with a thickness of 3 mm.

[0045] The positioning structure includes: a boss 207 arranged on the outside of the tank body 208 and a slide 110 arranged inside the sleeve 100; four stainless steel bosses 207 with an outer diameter 20 mm larger than the tank body 208 are evenly distributed axially welded on the outer wall of the tank body 208; the slide 110 is composed of 4 pairs of axial water channels 101 evenly distributed inside the sleeve 100, and a slide 110 is formed between each pair of axial water channels 101, and the inner diameter of the slide 110 is 130 mm; the width is consistent with the boss 27.

[0046] The cover 202 is provided with a hook ring 205 . The hook ring 205 is made of stainless steel and is 10 mm higher than the cover 202 .

[0047] The air guide pipe 203 is 10mm higher than the cover 202 and has an outer diameter of 15mm. A cover filter 204 is provided at the top of the air guide pipe 203; a flange filter 105 is provided on the hydrogen valve 106; the thickness of the flange filter 105 and the filter 204 is 1-1.5mm; and the filtering accuracy is 0-0.5μm.

[0048] The tank body 208, the sealing cover 202 and the air guide tube 203 are made of stainless steel sintered plates, with a filtration accuracy of 2-5 μm and a wall thickness of 3 mm.

[0049] The hydrogen storage alloy powder 201 is rare earth AB5 type, titanium AB type or titanium AB2 type; the filling height is 70% of the tank body 208 .

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A metal hydride hydrogen storage container that is easy to disassemble and effectively exchange heat, characterized in that: The hydrogen storage container comprises: a hydrogen storage alloy tank (200), a sleeve (100), a flange (103) and a hydrogen valve (106); The hydrogen storage alloy tank (200) is installed in the sleeve (100) and is sealed and connected by a flange (103) through a rubber gasket (107) and flange bolts and nuts (104); a hydrogen valve (106) is installed at the center of the flange (103); and hydrogen storage alloy powder (201) is installed inside the hydrogen storage alloy tank (200); The hydrogen storage alloy tank (200) comprises: a tank body (208), a cover (202), and an air guide tube (203); the tank body (208) is a cylindrical structure with a closed bottom and an open top; the air guide tube (203) is welded to the center of the bottom of the tank body (208); a circular hole with the same outer diameter as the air guide tube (203) is provided at the center of the cover (202); the cover (202) and the tank body (208) are sealed and connected by cover bolts (206) to form the hydrogen storage alloy tank (200); The inner wall of the sleeve (100) is provided with a circulating water channel for heat exchange with the hydrogen storage container; the circulating water channel comprises: an axial water channel (101), a water outlet (102), an annular water channel (108) and a water inlet (109); the four pairs of axial water channels (101) are evenly distributed on the inner wall of the sleeve (100), the height of which is 10 mm lower than that of the hydrogen storage alloy tank (200), and the minimum inner diameter is equal to that of the hydrogen storage alloy tank (200); an annular water channel (108) is respectively provided at the upper and lower ends of the inner wall of the sleeve (100), the height of which is 10 mm. mm, and the inner diameter is 20 mm larger than that of the tank body (208); the axial water channel (101) is communicated with the annular water channel (108), and is communicated with the water inlet (109) and the water outlet (102) arranged at the lower part and the upper part of the sleeve (100) to form a circulating water circuit; the axial water channel (101) and the annular water channel (108) are made of a stainless steel material with a thickness of 2 mm; the water outlet (102) and the water inlet (109) are made of a stainless steel pipe with a thickness of 3 mm; The outer wall of the hydrogen storage alloy tank (200) and the inner wall of the sleeve (100) are provided with a positioning structure for positioning and fixing the hydrogen storage alloy tank (200) inside the sleeve (100); the positioning structure comprises: a boss (207) arranged outside the tank body (208) and a slideway (110) arranged inside the sleeve (100); four stainless steel bosses (207) with an outer diameter 20 mm larger than that of the tank body (208) are evenly distributed axially welded on the outer wall of the tank body (208); the slideway (110) is composed of four pairs of axial water channels (101) evenly distributed inside the sleeve (100), a slideway (110) is formed between each pair of axial water channels (101), the diameter of the slideway (110) is 2 mm larger than the outer diameter of the boss (207); and the width is consistent with that of the boss (207).

2. The metal hydride hydrogen storage container that is easy to disassemble and effectively exchange heat according to claim 1, characterized in that: The sleeve (100) has a wall thickness of 4 mm and an inner diameter that is 40 mm larger than the outer diameter of the hydrogen storage alloy tank (200).

3. The metal hydride hydrogen storage container that is easy to disassemble and effectively exchange heat according to claim 2, characterized in that: The sleeve (100) is 3-6 mm higher than the airway tube (203).

4. The metal hydride hydrogen storage container that is easy to disassemble and effectively exchange heat according to claim 3 is characterized in that: The air guide tube (203) is 10 mm higher than the sealing cover (202) and has an outer diameter of 15 mm.

5. The metal hydride hydrogen storage container that is easy to disassemble and effectively exchange heat according to claim 4, characterized in that: The sealing cover (202) is provided with a hook ring (205), the hook ring (205) is made of stainless steel and is 10 mm higher than the sealing cover (202).

6. The metal hydride hydrogen storage container that is easy to disassemble and effectively exchange heat according to claim 1, characterized in that: A sealing filter (204) is provided at the top of the air guide pipe (203); a flange filter (105) is installed on the hydrogen valve (106); the thickness of the flange filter (105) and the filter (204) is 1-1.5 mm; and the filtering accuracy is 0-0.5 µm.

7. The metal hydride hydrogen storage container that is easy to disassemble and effectively exchange heat according to claim 1, characterized in that: The tank body (208), the sealing cover (202), and the air guide tube (203) are made of stainless steel sintered plates, with a filtration accuracy of 2-5µm and a wall thickness of 3mm.

8. The metal hydride hydrogen storage container that is easy to disassemble and effectively exchange heat according to claim 1, characterized in that: The hydrogen storage alloy powder (201) is of rare earth AB5 type, titanium AB type or titanium AB2 type; the filling height is not less than 50% and not more than 80% of the tank body (208).

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