A tubular solid state hydrogen storage device

Abstract

The application relates to the technical field of hydrogen storage devices, and discloses a tubular solid-state hydrogen storage device which comprises a hydrogen storage tube, and further comprises an upper butt flange, a lower butt flange, a plugging core, an upper gland, an air inlet assembly, a lower gland, an air outlet assembly, a support assembly and a powder isolation assembly; the upper butt flange is fixedly installed at the upper portion of the hydrogen storage tube; the lower butt flange is fixedly installed at the lower portion of the hydrogen storage tube; the plugging core is detachably installed on the upper butt flange; the upper gland is detachably installed on the upper butt flange; the air inlet assembly is installed on the upper gland; the lower gland is installed on the lower butt flange; the air outlet assembly is installed on the lower gland; the support assembly is installed inside the hydrogen storage tube; the upper and lower sides of the support assembly are both provided with the powder isolation assembly; and the above technical scheme solves the problem that, in the prior art, the hydrogen storage equipment is relatively complex, so that the hydrogen storage material is difficult to replace.

Description

Technical Field

[0001] This invention relates to the field of hydrogen storage device technology, and specifically to a tubular solid hydrogen storage device. Background Technology

[0002] Tubular solid-state hydrogen storage devices are a highly efficient solid-state hydrogen energy storage technology. Its main components include an outer shell, a hydrogen storage tube, and an internal heat exchange fluid. The outer shell forms a closed containment cavity for storing the flowable heat exchange fluid. The hydrogen storage tube is located in the containment cavity, with one end extending out of the outer shell and equipped with a hydrogen filling / discharging port and valve for hydrogen filling / discharging operations. The main body of the hydrogen storage tube is located in the containment cavity and undergoes convective heat exchange through the heat exchange fluid.

[0003] Hydrogen storage devices are typically designed with a sealed structure to ensure that hydrogen does not leak. However, this design makes it difficult to replace the internal hydrogen storage materials. Furthermore, hydrogen storage materials, such as metal hydrides, undergo volume changes during hydrogen absorption and release, which can lead to material pulverization or structural changes. Therefore, special care must be taken when replacing materials, otherwise the hydrogen storage device can be easily damaged, making the replacement of hydrogen storage materials even more complicated. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a tubular solid-state hydrogen storage device, which solves the problem mentioned in the background art that the hydrogen storage equipment is relatively complex, making it difficult to replace the hydrogen storage material.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A tubular solid-state hydrogen storage device includes a hydrogen storage tube and further includes:

[0009] Upper docking flange, which is fixedly installed on the upper part of the hydrogen storage pipe;

[0010] The lower docking flange is fixedly installed at the lower part of the hydrogen storage pipe;

[0011] A sealing core, wherein the sealing core is detachably mounted on the upper mating flange;

[0012] An upper pressure cover, which is detachably mounted on the upper mating flange;

[0013] An air intake assembly, which is mounted on the upper cover, is used for air intake;

[0014] A lower pressure cover, which is installed on the lower docking flange;

[0015] An exhaust assembly, mounted on the lower pressure cover, is used for venting air;

[0016] A support assembly, which is installed inside the hydrogen storage tube, is used to install hydrogen storage material;

[0017] A powder isolation assembly is provided, with the powder isolation assembly installed on both the upper and lower sides of the support assembly for isolating powder.

[0018] Based on the aforementioned solution, the intake assembly includes:

[0019] An inlet hole is provided on the sealing core;

[0020] A first one-way valve is sealed and connected to the top of the upper pressure cover, and the connection position between the first one-way valve and the upper pressure cover is located above the inlet hole;

[0021] The sealing core has a through hole, which is located on the side of the inlet hole.

[0022] A temperature sensor is fixedly and sealed on the upper pressure cover, and the detection end of the temperature sensor is located inside the through hole;

[0023] A sealing part is installed on the sealing core for sealing.

[0024] Based on the aforementioned solution, the sealing part includes:

[0025] The annular groove is provided on both the upper and lower sides of the sealing core;

[0026] The first sealing ring is provided in both annular grooves. The upper first sealing ring is sealed and fixedly connected to the inner top wall of the upper pressure cover, and the lower first sealing ring is sealed and fixedly connected to the upper end face of the lower mating flange.

[0027] Based on the aforementioned solution, the exhaust assembly includes:

[0028] A sealing seat is fixedly installed on the lower pressure cover, and the sealing seat is in sealing contact with the lower mating flange;

[0029] The sealing seat has a discharge hole;

[0030] The second one-way valve is sealed and connected to the bottom of the lower pressure cover, and the position where the second one-way valve is connected to the lower pressure cover is below the discharge hole;

[0031] A closure portion is installed inside the lower pressure cover for sealing.

[0032] Based on the aforementioned solution, the closure portion includes:

[0033] The sealing grooves are symmetrically formed on the inner wall of the lower mating flange;

[0034] The second sealing ring is fixedly installed inside both of the two sealing grooves, and both of the second sealing rings are in sealing contact with the sealing seat.

[0035] Based on the aforementioned solution, the support assembly includes:

[0036] Mounting bracket, which can be detachably installed inside the hydrogen storage tube;

[0037] The mounting bracket has multiple mounting slots arranged at equal intervals.

[0038] Each of the mounting slots is equipped with a hydrogen storage unit for storing hydrogen gas.

[0039] Based on the aforementioned scheme, the hydrogen storage unit includes:

[0040] Two hydrogen storage material blocks are symmetrically and detachably installed on each of the mounting slots.

[0041] A gap is provided between the two hydrogen storage material blocks, and a gap is provided between the upper side of each hydrogen storage material block and the mounting bracket.

[0042] Based on the aforementioned solution, the powder isolation assembly includes:

[0043] Positioning rings are fixedly installed at both the upper and lower ends of the mounting bracket;

[0044] The positioning groove is provided inside both positioning rings;

[0045] The two positioning rings, at the ends away from the mounting bracket, each have multiple insertion slots formed at equal angles in a window-like circular shape.

[0046] The isolation section is detachably installed on both of the positioning rings and is used to isolate powder.

[0047] Based on the aforementioned solution, the isolation section includes a filter, and the filter is disposed inside both positioning rings, and further includes:

[0048] Positioning blocks: Multiple positioning blocks are fixedly installed on both filters in a circumferential shape at equal angles, and the multiple positioning blocks correspond one-to-one with the multiple insertion slots;

[0049] The positioning balls are fixedly installed in the two positioning slots in a circular shape at equal angles, and the positioning balls correspond one-to-one with the positioning blocks.

[0050] In addition to the aforementioned solutions, the following are also included:

[0051] A heater is sealed and fixedly installed between the upper and lower docking flanges, and the heater abuts against the hydrogen storage pipe;

[0052] The heater has two connectors that are symmetrically connected to each other.

[0053] (III) Beneficial Effects

[0054] Compared with the prior art, the present invention provides a tubular solid-state hydrogen storage device, which has the following advantages:

[0055] 1. In this invention, the hydrogen storage material briquettes are made of magnesium alloy and are semi-cylindrical in shape. Two hydrogen storage material briquettes are symmetrically installed in each mounting slot, and a certain gap is left between the two adjacent briquettes. A certain gap is also left between the upper part of each mounting slot and the hydrogen storage material briquettes, which facilitates increasing the contact area between hydrogen and the hydrogen storage material briquettes. Furthermore, during expansion, the hydrogen storage material briquettes will not be damaged due to excessive compression, resulting in the generation of powder, thus improving the efficiency of hydrogen storage.

[0056] 2. In this invention, the positions of multiple positioning blocks on the filter correspond to the insertion slots. The positioning blocks are then inserted into the insertion slots, where they enter the positioning slots. The two sides of the positioning blocks abut against the two sides inside the positioning slots. The filter is then rotated so that the positioning blocks contact the positioning balls. The positioning balls have a certain elasticity. Through the cooperation of the positioning blocks and the positioning balls, the position of the filter can be fixed, facilitating filter replacement and ensuring good filtration. This also prevents powdery substances generated by the hydrogen storage material briquettes from entering the first or second one-way valve, thus improving safety.

[0057] 3. In this invention, the inclusion of an intake assembly and an exhaust assembly facilitates the assembly of the hydrogen storage pipe and the mounting bracket. The bracket assembly also facilitates the disassembly and assembly of the hydrogen storage material block, simplifying the installation process, reducing damage to the hydrogen storage pipe, and increasing the contact area between hydrogen and the hydrogen storage material block, thereby improving hydrogen storage efficiency. Furthermore, the inclusion of a powder isolation assembly reduces the possibility of powder generated by the hydrogen storage powder block entering the first and second one-way valves, thus mitigating safety hazards. Attached Figure Description

[0058] Figure 1 This is a schematic diagram of the overall structure in this application;

[0059] Figure 2 This is a cross-sectional three-dimensional structural diagram in this application;

[0060] Figure 3 This is a cross-sectional view of the structure from another angle in this application;

[0061] Figure 4 This is a cross-sectional view of the intake assembly in this application;

[0062] Figure 5 This is a cross-sectional structural diagram of the sealing part in this application;

[0063] Figure 6 This is a cross-sectional view of the exhaust assembly in this application;

[0064] Figure 7 This is a cross-sectional structural diagram of the mating structure between the lower flange and the sealing groove in this application;

[0065] Figure 8 This is a schematic diagram of the structure of the support assembly and the powder isolation assembly in this application.

[0066] Figure 9 This is a schematic diagram of the support assembly in this application;

[0067] Figure 10 This is a schematic diagram of the structure of the powder isolation assembly in this application;

[0068] Figure 11 This is a schematic diagram of the isolation section in this application.

[0069] In the diagram: 1. Hydrogen storage pipe; 2. Upper connecting flange; 3. Lower connecting flange; 4. Sealing core; 5. Upper pressure cap; 6. Lower pressure cap; 7. Inlet port; 8. First one-way valve; 9. Through port; 10. Temperature sensor; 11. Annular groove; 12. First sealing ring; 13. Sealing seat; 14. Discharge port; 15. Second one-way valve; 16. Sealing groove; 17. Second sealing ring; 18. Mounting bracket; 19. Mounting groove; 20. Hydrogen storage material block; 21. Positioning ring; 22. Positioning groove; 23. Insertion groove; 24. Filter; 25. Positioning block; 26. Positioning ball; 27. Heater; 28. Connector; 29. ​​Bolt. Detailed Implementation

[0070] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0071] Please see Figures 1 to 11 A tubular solid-state hydrogen storage device includes a hydrogen storage pipe 1, an upper connecting flange 2, a lower connecting flange 3, a sealing core 4, an upper pressure cap 5, an inlet assembly, a lower pressure cap 6, an exhaust assembly, a support assembly, and a powder isolation assembly. The upper connecting flange 2 is fixedly installed on the upper part of the hydrogen storage pipe 1, the lower connecting flange 3 is fixedly installed on the lower part of the hydrogen storage pipe 1, the sealing core 4 is detachably installed on the upper connecting flange 2, the upper pressure cap 5 is detachably installed on the upper connecting flange 2, and the inlet assembly is installed on the upper pressure cap 5 for inlet gas intake. The inlet assembly includes an inlet... The sealing core 4 has an inlet hole 7, a first one-way valve 8, a through hole 9, a temperature sensor 10, and a sealing part. The inlet hole 7 is provided on the sealing core 4. The first one-way valve 8 is sealed and connected to the top of the upper pressure cover 5. The connection position between the first one-way valve 8 and the upper pressure cover 5 is located above the inlet hole 7. The through hole 9 is provided on the sealing core 4 and is located on one side of the inlet hole 7. The temperature sensor 10 is fixed and sealed on the upper pressure cover 5. The detection end of the temperature sensor 10 is located inside the through hole 9. The sealing part is installed on the sealing core 4 for sealing.

[0072] Specifically, in use, the upper flange 2 is first installed on the upper part of the hydrogen storage pipe 1, and the lower flange 3 is installed on the upper part of the hydrogen storage pipe 1. Both the upper flange 2 and the lower flange 3 are installed by welding. After the upper flange 2 and the lower flange 3 are installed, the heater 27 is installed. Then, the hydrogen storage material pressure block 20 is installed on the support assembly, and the powder isolation assembly is installed at both ends of the support assembly. The support assembly can then be installed inside the hydrogen storage pipe 1. At this time, the sealing core 4 is inserted into the upper part of the upper flange 2, and then the upper pressure cap 5 is placed on the upper part of the sealing core 4. The upper pressure cap 5 and the upper flange 2 are connected by bolts 29. Multiple bolts 29 arranged in a circumferential and equidistant manner ensure that the sealing core 4 is subjected to uniform force. At this time, the support assembly... The powder isolation assembly at the top of the component abuts against the bottom of the upper connecting flange 2, and then the lower pressure cover 6 is installed at the lower connecting flange 3. At this time, hydrogen storage can begin. Hydrogen gas is introduced into the first one-way valve 8, and then into the inlet 7 through the first one-way valve 8, and then into the position of the support assembly. At this time, the hydrogen gas reacts with the hydrogen storage material block 20 to form a metal hydride. This substance has high stability, thus storing hydrogen gas. During this process, the exhaust assembly expels the internal air, and then the exhaust assembly is closed until the storage is completed. When hydrogen gas needs to be released, the exhaust assembly is connected to the equipment or pipeline receiving hydrogen gas, and the hydrogen storage pipe 1 is heated until the hydrogen storage material block 20 is heated and reaches a certain temperature, at which point the hydrogen gas can be released.

[0073] The above, such as Figure 4 , Figure 5As shown, the sealing part includes an annular groove 11 and a first sealing ring 12. The upper and lower sides of the sealing core 4 are provided with annular grooves 11, and a first sealing ring 12 is provided in each of the two annular grooves 11. The upper first sealing ring 12 is sealed and fixedly connected to the inner top wall of the upper pressure cover 5, and the lower first sealing ring 12 is sealed and fixedly connected to the upper end face of the lower connecting flange 3.

[0074] Specifically, to prevent hydrogen from escaping from the hydrogen storage pipe 1 during the hydrogen storage process, the first sealing ring 12 is designed with a circular contact point with the annular groove 11, and the bottom of the annular groove 11 is also designed to be circular, making the seal more stable.

[0075] like Figure 6 , Figure 7 As shown, the lower pressure cover 6 is installed on the lower docking flange 3, and the exhaust assembly is installed on the lower pressure cover 6 for venting. The exhaust assembly includes a sealing seat 13, an exhaust hole 14, a second one-way valve 15, and a closing part. The sealing seat 13 is fixedly installed on the lower pressure cover 6 and seals against the lower docking flange 3. The sealing seat 13 has an exhaust hole 14. The second one-way valve 15 is sealed and connected to the bottom of the lower pressure cover 6. The position where the second one-way valve 15 connects to the lower pressure cover 6 is below the exhaust hole 14. The closing part is installed inside the lower pressure cover 6 for sealing.

[0076] Specifically, after the mounting bracket 18 is installed inside the hydrogen storage pipe 1, the sealing seat 13 is installed inside the lower connecting flange 3 through the lower pressure cap 6. When it is necessary to discharge hydrogen, the second one-way valve 15 is opened, and the hydrogen can be discharged through the discharge hole 14 into the second one-way valve 15, thereby discharging the hydrogen.

[0077] The above, such as Figure 6 , Figure 7 As shown, the closing part includes a sealing groove 16 and a second sealing ring 17. Two sealing grooves 16 are symmetrically opened on the inner wall of the lower connecting flange 3. The second sealing ring 17 is fixedly installed inside the two sealing grooves 16, and the two second sealing rings 17 are sealed and abut against the sealing seat 13.

[0078] Specifically, when the sealing seat 13 is installed, the outer side of the sealing seat 13 abuts against the second sealing ring 17 on the lower connecting flange 3, thereby ensuring that hydrogen will not escape during transportation or storage.

[0079] It should be added that the first sealing ring 12 and the second sealing ring 17 are preferably made of polytetrafluoroethylene or fluorosilicone rubber. Polytetrafluoroethylene has good low-temperature performance and corrosion resistance, while fluorosilicone rubber is not only resistant to high temperature, but also wear-resistant, corrosion-resistant and UV-resistant. These materials all exhibit good chemical stability and physical properties in a hydrogen environment, so they will not be affected by hydrogen and will always maintain good sealing performance.

[0080] like Figure 8 As shown, the support assembly is installed inside the hydrogen storage pipe 1 for installing hydrogen storage materials. The support assembly includes a mounting bracket 18, a mounting groove 19, and a hydrogen storage part. The mounting bracket 18 is detachably installed inside the hydrogen storage pipe 1. Multiple mounting grooves 19 are evenly spaced on the mounting bracket 18, and each mounting groove 19 is equipped with a hydrogen storage part for storing hydrogen.

[0081] Specifically, after the hydrogen storage units are installed in the mounting slots 19 in sequence, a certain gap is left between the upper part of each mounting slot 19 and the hydrogen storage unit, so that when the hydrogen storage unit absorbs hydrogen and its volume expands, it will not damage the mounting bracket 18. At the same time, it ensures that there is a larger contact area between the hydrogen storage unit and the hydrogen, which facilitates hydrogen storage.

[0082] The above, such as Figure 8 As shown, the hydrogen storage unit includes hydrogen storage material blocks 20. Two hydrogen storage material blocks 20 are symmetrically and detachably installed on each mounting slot 19. A gap is provided between the two hydrogen storage material blocks 20, and a gap is provided between the upper side of each hydrogen storage material block 20 and the mounting bracket 18.

[0083] Specifically, the hydrogen storage material briquette 20 is made of magnesium alloy and is semi-cylindrical in shape. Two hydrogen storage material briquettes 20 are symmetrically installed in each mounting slot 19, and a certain gap is left between the two adjacent briquettes to increase the contact area between hydrogen and the hydrogen storage material briquette 20. In addition, the hydrogen storage material briquette 20 will not be damaged due to excessive compression during expansion, resulting in the generation of powder.

[0084] like Figure 10 , Figure 11 As shown, powder isolation components are installed on both the upper and lower sides of the bracket assembly for isolating powder. The powder isolation components include positioning rings 21, positioning grooves 22, insertion grooves 23, and isolation parts. Positioning rings 21 are fixedly installed on both the upper and lower ends of the mounting bracket 18. Positioning grooves 22 are opened inside the two positioning rings 21. Multiple insertion grooves 23 are opened at equal angles in a circular shape at the ends of the two positioning rings 21 away from the mounting bracket 18. Isolation parts can be detachably installed on both positioning rings 21 for isolating powder.

[0085] Specifically, during the hydrogen storage and release process, the crystal lattice of the magnesium alloy expands by 10% to 25% during hydrogenation and contracts during hydrogen release. This repeated volume change leads to the pulverization of the alloy. If the resulting powdery material enters the first one-way valve 8 or the second one-way valve 15, it will pose a certain safety hazard. To prevent the powder from the pulverization of the hydrogen storage material block 20 from entering the first one-way valve 8 or the second one-way valve 15, positioning rings 21 are installed at both the upper and lower ends of the mounting bracket 18. Then, through the setting of the positioning groove 22 and the insertion groove 23, isolation parts are installed inside the two positioning rings 21 to prevent the pulverized metal powder from entering the first one-way valve 8 or the second one-way valve 15. Then, the mounting bracket 18 can be installed into the hydrogen storage pipe 1.

[0086] The above, such as Figure 10 , Figure 11 As shown, the isolation section includes a filter 24, and each of the two positioning rings 21 is equipped with a filter 24. It also includes positioning blocks 25 and positioning balls 26. Multiple positioning blocks 25 are fixedly installed on each of the two filters 24 in a circumferential and equidistant manner. The multiple positioning blocks 25 correspond one-to-one with multiple insertion slots 23. Multiple positioning balls 26 are fixedly installed in the two positioning slots 22 in a circumferential and equidistant manner. The multiple positioning balls 26 correspond one-to-one with multiple positioning blocks 25.

[0087] Specifically, when installing the filter 24, first align the positions of the multiple positioning blocks 25 on the filter 24 with the insertion slots 23, and insert the positioning blocks 25 into the insertion slots 23. At this time, the positioning blocks 25 enter the positioning groove 22, and the two sides of the positioning blocks 25 abut against the two sides inside the positioning groove 22. Then, rotate the position of the filter 24 so that the positioning blocks 25 contact the positioning balls 26. The positioning balls 26 have a certain elasticity. Through the cooperation of the positioning blocks 25 and the positioning balls 26, the position of the filter 24 can be fixed, and it is convenient to replace the filter 24, ensuring a good filtration effect.

[0088] The above, such as Figure 1 As shown, it also includes a heater 27 and a connector 28. The heater 27 is sealed and fixedly installed between the upper docking flange 2 and the lower docking flange 3. The heater 27 abuts against the hydrogen storage pipe 1. Two connectors 28 are symmetrically connected on the heater 27.

[0089] Specifically, when hydrogen needs to be released, first connect the second one-way valve 15 to the equipment or pipeline receiving hydrogen, open the second one-way valve 15, and connect it to the control equipment through the connector 28 to control the heater 27 to heat the hydrogen storage tube 1. The mounting bracket 18 abuts against the inner wall of the hydrogen storage tube 1, thereby uniformly heating the hydrogen storage material block 20 through the mounting bracket 18, and thus releasing hydrogen.

[0090] It should be added that magnesium-based solid hydrogen storage materials can stably release hydrogen under high temperature conditions of 300-400℃. However, the specific hydrogen release temperature depends on the composition and structure of the material. This hydrogen release method is suitable for large-capacity, long-distance hydrogen storage and transportation, as well as solid hydrogen refueling stations and fuel cell power systems.

[0091] The working principle or usage process of this application is as follows:

[0092] First, install the upper flange 2 on the upper part of the hydrogen storage pipe 1, and then install the lower flange 3 on the upper part of the hydrogen storage pipe 1. Both the upper flange 2 and the lower flange 3 are installed by welding. After installing the upper flange 2 and the lower flange 3, install the heater 27. Then, install the hydrogen storage material blocks 20 in the mounting slots 19 one by one. Two hydrogen storage material blocks 20 are symmetrically installed in each mounting slot 19, and a certain gap is left between the two adjacent blocks. A certain gap is also left between the upper part of each mounting slot 19 and the hydrogen storage material blocks 20 to increase the contact area between hydrogen and the hydrogen storage material blocks 20. This ensures that the hydrogen storage material blocks 20 will not be damaged due to excessive compression when they expand after absorbing hydrogen, thus preventing the generation of powder. At the same time, it ensures that there is a larger contact area between the hydrogen storage material blocks 20 and the hydrogen, which is conducive to hydrogen storage.

[0093] During the hydrogen storage and release process, the crystal lattice of the magnesium alloy expands by 10% to 25% during hydrogenation and contracts during hydrogen release. This repeated volume change leads to pulverization of the alloy. If the resulting powdery material enters the first one-way valve 8 or the second one-way valve 15, it will pose a certain safety hazard. To prevent the powder from the pulverization of the hydrogen storage material block 20 from entering the first one-way valve 8 or the second one-way valve 15, positioning rings 21 will be installed at both the upper and lower ends of the mounting bracket 18. Then, by setting the positioning groove 22 and the insertion groove 23, the positions of the multiple positioning blocks 25 on the filter 24 will be aligned with the insertion groove 23. 3. Insert the positioning block 25 into the insertion slot 23. At this time, the positioning block 25 enters the positioning groove 22. The two sides of the positioning block 25 abut against the two sides inside the positioning groove 22. Then rotate the position of the filter 24 so that the positioning block 25 contacts the positioning ball 26. The positioning ball 26 has a certain elasticity. Through the cooperation of the positioning block 25 and the positioning ball 26, the position of the filter 24 can be fixed, and it is easy to replace the filter 24, ensuring a good filtration effect. This prevents the pulverized metal powder from entering the first one-way valve 8 or the second one-way valve 15. Then, install the mounting bracket 18 into the hydrogen storage tube 1.

[0094] At this point, the sealing core 4 is inserted into the upper part of the upper docking flange 2, and then the upper pressure cap 5 is placed on the upper part of the sealing core 4. The upper pressure cap 5 and the upper docking flange 2 are connected by bolts 29. Multiple bolts 29 arranged in a circumferential and equidistant manner ensure that the sealing core 4 is subjected to uniform force. In order to prevent hydrogen from escaping from the hydrogen storage pipe 1 during the hydrogen storage process, the first sealing ring 12 is set so that the contact position between the first sealing ring 12 and the annular groove 11 is set to be circular, and the bottom of the annular groove 11 is also set to be circular, so that the seal is more stable. Then, the sealing seat 13 is installed inside the lower docking flange 3 through the lower pressure cap 6. At this time, when the sealing seat 13 is installed, the outer side of the sealing seat 13 abuts against the second sealing ring 17 on the lower docking flange 3, thereby ensuring that hydrogen will not escape during transportation or storage.

[0095] When hydrogen storage begins, hydrogen gas is introduced into the first one-way valve 8. The hydrogen gas passes through the first one-way valve 8 into the inlet 7 and then into the mounting bracket 18. At this time, the hydrogen gas reacts with the hydrogen storage material block 20 to form a metal hydride. This substance has high stability, thus storing the hydrogen gas. During this process, the air inside the hydrogen storage pipe 1 is discharged through the outlet 14 through the second one-way valve 15. Then the second one-way valve 15 is closed until the storage is completed.

[0096] When hydrogen needs to be released, first connect the second one-way valve 15 to the equipment or pipeline receiving hydrogen, open the second one-way valve 15, and connect it to the control equipment through the connector 28. Control the heater 27 to heat the hydrogen storage tube 1. The mounting bracket 18 abuts against the inner wall of the hydrogen storage tube 1, so that the hydrogen storage material block 20 is heated evenly through the mounting bracket 18, and the hydrogen can be released.

[0097] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tubular solid state hydrogen storage device comprising a hydrogen storage tube (1), characterized in that, Also include: The upper butt flange (2) is fixedly installed on the upper part of the hydrogen storage pipe (1); The lower butt flange (3) is fixedly installed on the lower part of the hydrogen storage pipe (1); The plugging core (4) is detachably installed on the upper butt flange (2); The upper gland (5) is detachably installed on the upper butt flange (2); The air inlet assembly is installed on the upper gland (5) for air inlet; The lower gland (6) is installed on the lower butt flange (3); The exhaust assembly is installed on the lower gland (6) for air outlet; The support assembly is installed inside the hydrogen storage pipe (1) for installing hydrogen storage material; The powder isolation assembly is installed on the upper and lower sides of the support assembly for isolating powder; The support assembly comprises: The mounting bracket (18) is detachably installed inside the hydrogen storage pipe (1); The mounting bracket (18) is provided with a plurality of mounting grooves (19) at equal distances; The hydrogen storage part is installed in each mounting groove (19) for storing hydrogen; The hydrogen storage part comprises: The hydrogen storage material briquette (20) is symmetrically and detachably installed on each mounting groove (19); Wherein, a gap is provided between the two hydrogen storage material briquettes (20), and a gap is provided between the upper side of each hydrogen storage material briquette (20) and the mounting bracket (18); The powder isolation assembly comprises: The positioning ring (21) is fixedly installed on the upper and lower ends of the mounting bracket (18); The positioning groove (22) is provided in the inside of the two positioning rings (21); The plug-in groove (23) is circumferentially and angularly provided on one end of the two positioning rings (21) away from the mounting bracket (18); The isolation part is detachably installed on the two positioning rings (21) for isolating powder; The isolation part comprises a filter (24) provided in the inside of the two positioning rings (21), and further comprises: The positioning block (25) is circumferentially and angularly fixedly installed on the two filters (24), and a plurality of positioning blocks (25) correspond to a plurality of plug-in grooves (23) one by one; The positioning ball (26) is circumferentially and angularly fixedly installed in the inside of the two positioning grooves (22), and a plurality of positioning balls (26) correspond to a plurality of positioning blocks (25) one by one.

2. The tubular solid state hydrogen storage device of claim 1, wherein, The air inlet assembly comprises: The entering hole (7) is provided on the plugging core (4); A first one-way valve (8) is sealingly communicated at the top of the upper gland (5), and the communication position of the first one-way valve (8) and the upper gland (5) is above the inlet hole (7); A through hole (9) is arranged on the blocking core (4), and the through hole (9) is located on one side of the inlet hole (7); A temperature sensor (10) is fixedly and sealingly installed on the upper gland (5), and the detection end of the temperature sensor (10) is located inside the through hole (9); A sealing part is installed on the blocking core (4) for sealing.

3. A tubular solid state hydrogen storage device according to claim 2, wherein, The sealing part comprises: An annular groove (11) is arranged on the upper and lower sides of the blocking core (4); A first sealing ring (12) is arranged in each of the two annular grooves (11), and the first sealing ring (12) on the upper side is sealingly and fixedly connected with the inner top wall of the upper gland (5), and the first sealing ring (12) on the lower side is sealingly and fixedly connected with the upper end face of the lower butt flange (3).

4. The tubular solid state hydrogen storage device of claim 3, wherein, The exhaust assembly comprises: A blocking seat (13) is fixedly installed on the lower gland (6), and the blocking seat (13) sealingly abuts against the lower butt flange (3); An exhaust hole (14) is arranged on the blocking seat (13); A second one-way valve (15) is sealingly communicated at the bottom of the lower gland (6), and the communication position of the second one-way valve (15) and the lower gland (6) is below the exhaust hole (14); A closing part is installed inside the lower gland (6) for sealing.

5. A tubular solid state hydrogen storage device according to claim 4, wherein, The closing part comprises: Two sealing grooves (16) are symmetrically arranged in the inner wall of the lower butt flange (3); A second sealing ring (17) is fixedly installed inside each of the two sealing grooves (16), and the two second sealing rings (17) sealingly abut against the blocking seat (13).

6. A tubular solid state hydrogen storage device according to claim 5, wherein, Further comprising: A heater (27) is sealingly and fixedly installed between the upper butt flange (2) and the lower butt flange (3), and the heater (27) abuts against the hydrogen storage pipe (1); Two joints (28) are symmetrically communicated on the heater (27).

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