Tubular solid hydrogen storage device

Abstract

The invention relates to the technical field of hydrogen storage devices, and discloses a tubular solid hydrogen storage device which comprises a hydrogen storage pipe and further comprises an upper butt joint flange, a lower butt joint flange, a plugging core, an upper gland, an air inlet assembly, a lower gland, an exhaust assembly, a support assembly and a powder isolation assembly. The lower butt joint flange is fixedly installed on the lower portion of the hydrogen storage pipe, the plugging core is detachably installed on the upper butt joint flange, the upper gland is detachably installed on the upper butt joint flange, the air inlet assembly is installed on the upper gland, the lower gland is installed on the lower butt joint flange, the exhaust assembly is installed on the lower gland, and the support assembly is installed in the hydrogen storage pipe. By means of the technical scheme, the problem that in the prior art, due to the fact that hydrogen storage equipment is complex, hydrogen storage materials are difficult to replace is solved.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogen storage devices, and in particular to a tubular solid-state hydrogen storage device. Background Art

[0002] The tubular solid-state hydrogen storage device is a highly efficient hydrogen energy solid hydrogen storage technology. Its main components include an outer shell, a hydrogen storage tube and an internal heat exchange fluid. A closed receiving chamber is formed inside the outer shell for storing flowable heat exchange fluid. The hydrogen storage tube is arranged in the receiving chamber, one end of which extends out of the outer shell and is equipped with a hydrogen charging and discharging port and a valve for hydrogen charging and discharging operations. The main body of the hydrogen storage tube is located in the receiving chamber and performs convective heat exchange through the heat exchange fluid.

[0003] Since hydrogen storage devices are usually designed as sealed structures to ensure that hydrogen does not leak, this design makes it difficult to replace the internal hydrogen storage materials. In addition, hydrogen storage materials such as metal hydrides will undergo volume changes during the process of hydrogen absorption and desorption, which will cause the material to pulverize or change its structure. Therefore, special care must be taken when replacing the material, otherwise the hydrogen storage device can be easily damaged, making the replacement of hydrogen storage materials more complicated. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the present invention provides a tubular solid-state hydrogen storage device to solve the problem in the prior art mentioned in the background technology that the hydrogen storage material is difficult to replace due to the complexity of the hydrogen storage equipment.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solutions:

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

[0009] An upper docking flange, wherein the upper docking flange is fixedly mounted on the upper portion of the hydrogen storage pipe;

[0010] A lower docking flange, wherein the lower docking flange is fixedly mounted on the lower part of the hydrogen storage pipe;

[0011] A plugging core, the plugging core is detachably mounted on the upper docking flange;

[0012] An upper gland, the upper gland being detachably mounted on the upper docking flange;

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

[0014] A lower gland, the lower gland being mounted on the lower docking flange;

[0015] An exhaust assembly, the exhaust assembly is mounted on the lower gland and is used for exhausting gas;

[0016] A bracket assembly, the bracket assembly is installed inside the hydrogen storage tube and is used to install hydrogen storage materials;

[0017] A powder isolation component is installed on both the upper and lower sides of the bracket component to isolate powder.

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

[0019] An access hole, the plugging core is provided with the access hole;

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

[0021] A through hole, the plugging core is provided with the through hole, and the through hole is located on one side of the entry hole;

[0022] A temperature sensor, the temperature sensor is fixedly and sealedly mounted on the upper gland, and the detection end of the temperature sensor is located inside the through hole;

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

[0024] On the basis of the above solution, the sealing part comprises:

[0025] An annular groove, the annular groove is provided on both the upper and lower sides of the plugging core;

[0026] The first sealing ring is provided in each of the two annular grooves, the first sealing ring on the upper side is sealed and fixedly connected to the inner top wall of the upper pressure cover, and the first sealing ring on the lower side is sealed and fixedly connected to the upper end surface of the lower docking flange.

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

[0028] A blocking seat, the blocking seat is fixedly mounted on the lower gland, and the blocking seat is in sealing contact with the lower docking flange;

[0029] A discharge hole, the sealing seat is provided with the discharge hole;

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

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

[0032] On the basis of the above scheme, the closing part comprises:

[0033] Sealing grooves, two sealing grooves are symmetrically provided on the inner wall of the lower docking flange;

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

[0035] Based on the above solution, the bracket assembly includes:

[0036] A mounting bracket, the mounting bracket is detachably mounted inside the hydrogen storage tube;

[0037] Mounting slots, a plurality of said mounting slots being arranged at equal distances on said mounting bracket;

[0038] A hydrogen storage part is installed in each of the installation grooves to store hydrogen.

[0039] On the basis of the above scheme, the hydrogen storage unit comprises:

[0040] A hydrogen storage material block, wherein two hydrogen storage material blocks are symmetrically and detachably mounted on each of the mounting grooves;

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

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

[0043] A positioning ring, wherein the positioning ring is fixedly mounted on both upper and lower ends of the mounting bracket;

[0044] Positioning grooves, the two positioning rings are provided with the positioning grooves inside;

[0045] Insertion grooves, the ends of the two positioning rings away from the mounting bracket are both provided with a plurality of insertion grooves at equal angles in a circular shape;

[0046] The isolating part is detachably mounted on both of the two positioning rings and is used to isolate powder.

[0047] On the basis of the above scheme, the isolation part includes a filter, and the two positioning rings are both provided with the filter, and further includes:

[0048] Positioning blocks, a plurality of said positioning blocks are fixedly installed on the two filters in a circular shape with equal angles, and the plurality of said positioning blocks correspond one by one to the plurality of said plug-in slots;

[0049] Positioning balls, a plurality of positioning balls are fixedly installed at equal angles in a circular shape inside the two positioning grooves, and the plurality of positioning balls correspond one to one with the plurality of positioning blocks.

[0050] In addition to the above solutions, it also includes:

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

[0052] The heater is provided with two connectors which are symmetrically connected.

[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 beneficial effects:

[0055] 1. In the present invention, the material of the hydrogen storage material briquette is magnesium alloy material, and the shape is semi-cylindrical. Each mounting groove is symmetrically installed with two hydrogen storage material briquettes, and a certain gap is left between two adjacent briquettes, and a certain gap is left between the upper part of each mounting groove and the hydrogen storage material briquette, so as to increase the contact area between hydrogen and the hydrogen storage material briquette, and the hydrogen storage material briquette will not be damaged due to excessive squeezing during expansion, resulting in the generation of powder, thereby improving the efficiency of hydrogen storage.

[0056] 2. In the present invention, the positions of the multiple positioning blocks on the filter are made to correspond to the plug-in slots, and the positioning blocks are installed into the plug-in slots. At this time, the positioning blocks enter the positioning slots, and the two side surfaces of the positioning blocks abut against the two side surfaces inside the positioning slots. Then, the position of the filter is 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, and the filter can be easily replaced to ensure a good filtering effect. It is prevented that the powdery substances generated by the hydrogen storage material briquette enter the first one-way valve or the second one-way valve, thereby improving safety.

[0057] 3. In the present invention, the arrangement of the air intake assembly and the exhaust assembly facilitates the assembly of the hydrogen storage tube and the mounting bracket. With the help of the bracket assembly, the hydrogen storage material compact can be easily disassembled and assembled, thereby simplifying the installation steps, reducing damage to the hydrogen storage tube, and increasing the contact area between hydrogen and the hydrogen storage material compact, thereby improving the hydrogen storage efficiency. The arrangement of the powder isolation assembly can reduce the possibility of powder generated by the hydrogen storage powder compact entering the first one-way valve and the second one-way valve, thereby reducing safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0059] Figure 2 It is a schematic diagram of a three-dimensional structure in section in this application;

[0060] Figure 3 It is a schematic diagram of a cross-sectional structure from another angle in this application;

[0061] Figure 4 It is a schematic cross-sectional structural diagram of the air intake assembly in this application;

[0062] Figure 5 It is a schematic diagram of the cross-sectional structure of the sealing part in this application;

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

[0064] Figure 7 It is a cross-sectional structural diagram of the cooperation between the lower docking 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] Fig. 9 It is a schematic diagram of the structure of the bracket assembly in this application;

[0067] Fig.10 It is a schematic diagram of the structure of the powder isolation component in this application;

[0068] Fig.11 It is a structural schematic diagram of the isolation part in this application.

[0069] In the figure: 1. hydrogen storage tube; 2. upper docking flange; 3. lower docking flange; 4. sealing core; 5. upper pressure cover; 6. lower pressure cover; 7. entry hole; 8. first one-way valve; 9. through hole; 10. temperature sensor; 11. annular groove; 12. first sealing ring; 13. sealing seat; 14. discharge hole; 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. plug-in groove; 24. filter; 25. positioning block; 26. positioning ball; 27. heater; 28. joint; 29. ​​bolt. DETAILED DESCRIPTION

[0070] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions 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. 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.

[0071] See also Figures 1 to 11 A tubular solid-state hydrogen storage device comprises a hydrogen storage tube 1, an upper docking flange 2, a lower docking flange 3, a plugging core 4, an upper gland 5, an air intake assembly, a lower gland 6, an exhaust assembly, a bracket assembly and a powder isolation assembly, wherein the upper docking flange 2 is fixedly mounted on the upper portion of the hydrogen storage tube 1, the lower docking flange 3 is fixedly mounted on the lower portion of the hydrogen storage tube 1, the plugging core 4 is detachably mounted on the upper docking flange 2, the upper gland 5 is detachably mounted on the upper docking flange 2, the air intake assembly is mounted on the upper gland 5 for air intake, and the air intake assembly comprises ... An entry hole 7, a first one-way valve 8, a through hole 9, a temperature sensor 10 and a sealing part. The plugging core 4 is provided with an entry hole 7. The first one-way valve 8 is sealed and connected to the top of the upper pressure cover 5. The connecting position between the first one-way valve 8 and the upper pressure cover 5 is located above the entry hole 7. The plugging core 4 is provided with a through hole 9, which is located on one side of the entry hole 7. The temperature sensor 10 is fixedly and sealedly installed 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 plugging core 4 for sealing.

[0072] Specifically, when the present application is used, the upper docking flange 2 is first installed on the upper part of the hydrogen storage tube 1, and the lower docking flange 3 is installed on the upper part of the hydrogen storage tube 1. The upper docking flange 2 and the lower docking flange 3 are both installed by welding. After the upper docking flange 2 and the lower docking flange 3 are installed, the heater 27 can be installed, and then the hydrogen storage material block 20 is installed on the bracket assembly, and then the powder isolation assembly is installed at the upper and lower ends of the bracket assembly. The bracket assembly can be installed inside the hydrogen storage tube 1. At this time, the plugging core 4 is inserted into the upper part of the upper docking flange 2, and then the upper pressure cover 5 is placed on the upper part of the plugging core 4, and the upper pressure cover 5 and the upper docking flange 2 are connected by bolts 29. A plurality of bolts 29 arranged at equal angles in a circle make the plugging core 4 evenly stressed. At this time, the bracket assembly The powder isolation assembly at the top of the component is abutted against the bottom of the upper docking flange 2, and then the lower pressure cover 6 is installed on the lower docking flange 3. At this time, hydrogen storage can be started, and hydrogen is passed into the first one-way valve 8. The hydrogen passes through the first one-way valve 8 into the inside of the entry hole 7, and then enters the position of the bracket assembly. At this time, the hydrogen reacts with the hydrogen storage material block 20 to form a metal hydride. This substance has high stability, thereby storing hydrogen. During this process, the exhaust assembly discharges the internal air, and then closes the exhaust assembly until the storage is completed. When it is necessary to release the hydrogen, the exhaust assembly is connected to the equipment or pipeline that receives the hydrogen, and the hydrogen storage tube 1 is heated until the hydrogen storage material block 20 is heated and reaches a certain temperature, and then the hydrogen can be released.

[0073] The above, such as Figure 4 , Figure 5As shown, the sealing portion includes an annular groove 11 and a first sealing ring 12. An annular groove 11 is provided on the upper and lower sides of the sealing core 4. The first sealing ring 12 is provided in 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 docking flange 3.

[0074] Specifically, in order to prevent hydrogen from escaping from the hydrogen storage tube 1 during the hydrogen storage process, the first sealing ring 12 is provided, the position where the first sealing ring 12 contacts 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.

[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 exhausting gas. The exhaust assembly includes a sealing seat 13, a discharge hole 14, a second one-way valve 15 and a closing portion. The sealing seat 13 is fixedly installed on the lower pressure cover 6, and the sealing seat 13 is sealingly abutted against the lower docking flange 3. The sealing seat 13 is provided with a discharge hole 14. The second one-way valve 15 is sealingly connected to the bottom of the lower pressure cover 6. The position where the second one-way valve 15 is connected to the lower pressure cover 6 is below the discharge hole 14. The closing portion is installed inside the lower pressure cover 6 for sealing.

[0076] Specifically, after the mounting bracket 18 is installed in the hydrogen storage tube 1, the sealing seat 13 is installed inside the lower docking flange 3 through the lower pressure cover 6. When the hydrogen needs to be discharged, the second one-way valve 15 is opened, and the hydrogen can be discharged into the second one-way valve 15 through the discharge hole 14, and then the hydrogen is discharged.

[0077] The above, such as Figure 6 , Figure 7 As shown, the closing portion includes a sealing groove 16 and a second sealing ring 17 . Two sealing grooves 16 are symmetrically provided on the inner wall of the lower docking flange 3 . Second sealing rings 17 are fixedly installed inside the two sealing grooves 16 . Both second sealing rings 17 are in sealing contact with the blocking seat 13 .

[0078] Specifically, when the blocking seat 13 is installed, the outer side of the blocking 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.

[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 temperatures, but also wear-resistant, corrosion-resistant, and UV-resistant. These materials show good chemical stability and physical properties in a hydrogen environment, so they will not be affected by hydrogen and always maintain good sealing.

[0080] like Figure 8 As shown, the bracket assembly is installed inside the hydrogen storage tube 1 for installing hydrogen storage materials. The bracket assembly includes a mounting bracket 18, a mounting groove 19 and a hydrogen storage part. The mounting bracket 18 is detachably mounted inside the hydrogen storage tube 1. A plurality of mounting grooves 19 are arranged at equal distances on the mounting bracket 18. A hydrogen storage part is installed in each mounting groove 19 for storing hydrogen.

[0081] Specifically, after the hydrogen storage parts are installed in the mounting grooves 19 in sequence, a certain gap is left between the upper part of each mounting groove 19 and the hydrogen storage part, so that when the volume of the hydrogen storage part expands after absorbing hydrogen, it will not cause damage to the mounting bracket 18. At the same time, it ensures that there is a larger contact area between the hydrogen storage part and the hydrogen to facilitate hydrogen storage.

[0082] The above, such as Figure 8 As shown, the hydrogen storage part includes a hydrogen storage material block 20, and two hydrogen storage material blocks 20 are symmetrically and detachably installed on each mounting groove 19, wherein 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 material of the hydrogen storage material compact 20 is magnesium alloy material and is semi-cylindrical in shape. Two hydrogen storage material compacts 20 are symmetrically installed in each mounting groove 19, and a certain gap is left between two adjacent compacts to increase the contact area between hydrogen and the hydrogen storage material compact 20. During expansion, the hydrogen storage material compact 20 will not be damaged due to excessive squeezing, resulting in the generation of powder.

[0084] like Fig.10 , Fig.11 As shown, powder isolation components are installed on the upper and lower sides of the bracket assembly for isolating powder. The powder isolation components include a positioning ring 21, a positioning groove 22, a plug-in groove 23 and an isolation part. Positioning rings 21 are fixedly installed on the upper and lower ends of the mounting bracket 18. Positioning grooves 22 are provided inside the two positioning rings 21. The ends of the two positioning rings 21 away from the mounting bracket 18 are provided with multiple plug-in grooves 23 at equal angles in a circular shape. Isolation parts are detachably installed on the two positioning rings 21 for isolating powder.

[0085] Specifically, during the process of hydrogen storage and dehydrogenation, the crystal lattice of the magnesium alloy expands by 10% to 25% during hydrogenation and contracts during dehydrogenation. Such repeated volume changes lead to pulverization of the alloy. If the resulting powdery substance enters the first one-way valve 8 or the second one-way valve 15, certain safety hazards may occur. In order to prevent the powder generated by 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 ends of the mounting bracket 18, and then isolation parts are installed inside the two positioning rings 21 through the setting of the positioning groove 22 and the plug-in groove 23, so as 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 in the hydrogen storage tube 1.

[0086] The above, such as Fig.10 , Fig.11 As shown, the isolation part includes a filter 24, and the two positioning rings 21 are both provided with filters 24, and also include positioning blocks 25 and positioning balls 26. The two filters 24 are both provided with multiple positioning blocks 25 fixedly installed at equal angles in a circular shape, and the multiple positioning blocks 25 correspond one-to-one with the multiple plug-in slots 23. The two positioning slots 22 are both provided with multiple positioning balls 26 fixedly installed at equal angles in a circular shape, and the multiple positioning balls 26 correspond one-to-one with the multiple positioning blocks 25.

[0087] Specifically, when installing the filter 24, firstly adjust the positions of the multiple positioning blocks 25 on the filter 24 to correspond to the plug-in slots 23, and then install the positioning blocks 25 into the plug-in slots 23. At this time, the positioning blocks 25 enter the positioning slots 22, and the two side surfaces of the positioning blocks 25 abut against the two side surfaces inside the positioning slots 22. Then, the position of the filter 24 is rotated 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, thereby ensuring a good filtering effect.

[0088] The above, such as Figure 1 As shown, it also includes a heater 27 and a joint 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 tube 1. The heater 27 has two joints 28 symmetrically connected thereto.

[0089] Specifically, when it is necessary to release hydrogen, first connect the second one-way valve 15 to the device or pipeline for receiving hydrogen, open the second one-way valve 15, connect it to the control device through the setting of the joint 28, control the heater 27 to heat the hydrogen storage tube 1, and install the bracket 18 to abut against the inner wall of the hydrogen storage tube 1, so that the hydrogen storage material block 20 can be evenly heated through the setting of the mounting bracket 18, and the hydrogen can be released.

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

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

[0092] First, the upper docking flange 2 is installed on the upper part of the hydrogen storage tube 1, and the lower docking flange 3 is installed on the upper part of the hydrogen storage tube 1. The upper docking flange 2 and the lower docking flange 3 are installed by welding. After the upper docking flange 2 and the lower docking flange 3 are installed, the heater 27 can be installed. After the hydrogen storage material blocks 20 are installed in the installation grooves 19 in sequence, each installation groove 19 is symmetrically installed with two hydrogen storage material blocks 20, and a certain gap is left between two adjacent blocks. A certain gap is also left between the upper part of each installation groove 19 and the hydrogen storage material blocks 20, so as to increase the contact area between hydrogen and the hydrogen storage material blocks 20, so that after the hydrogen storage material blocks 20 absorb hydrogen, they will not be damaged due to excessive squeezing during expansion, resulting in the generation of powder. At the same time, it is ensured that there is a larger contact area between the hydrogen storage material blocks 20 and hydrogen, which is convenient for hydrogen storage.

[0093] During the process of hydrogen storage and dehydrogenation, the crystal lattice of the hydrogen storage alloy expands by 10% to 25% during hydrogenation and contracts during dehydrogenation. This repeated volume change leads to the pulverization of the alloy. If the generated powdery substance enters the first one-way valve 8 or the second one-way valve 15, it will cause certain safety hazards. In order to prevent the powder generated by the pulverization of the hydrogen storage material block 20 from entering the first one-way valve 8 or the second one-way valve 15, the positioning ring 21 is installed at both the upper and lower ends of the mounting bracket 18, and then the multiple positioning blocks 25 on the filter 24 are first positioned with the plug-in slot 23 through the setting of the positioning groove 22 and the plug-in slot 23. 3, the positioning block 25 is installed into the plug-in slot 23, at which time the positioning block 25 enters the positioning slot 22, and the two side surfaces of the positioning block 25 abut against the two side surfaces inside the positioning slot 22, and then the position of the filter 24 is rotated to make the positioning block 25 contact 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 the filter 24 is easy to replace, ensuring a good filtering effect, thereby preventing the pulverized metal powder from entering the first one-way valve 8 or the second one-way valve 15, and then the mounting bracket 18 is installed in the hydrogen storage tube 1.

[0094] At this time, the sealing core 4 is inserted into the upper part of the upper docking flange 2, and then the upper pressure cover 5 is placed on the upper part of the sealing core 4, and the upper pressure cover 5 and the upper docking flange 2 are connected by bolts 29. Multiple bolts 29 arranged at equal angles in a circle make the sealing core 4 evenly stressed. In order to prevent hydrogen from escaping from the hydrogen storage tube 1 during the hydrogen storage process, the first sealing ring 12 is set, and the position where the first sealing ring 12 contacts the annular groove 11 is set to a circle, and the bottom of the annular groove 11 is also set to a circle, so that the seal is more stable, and then the sealing seat 13 is installed inside the lower docking flange 3 through the lower pressure cover 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 is passed into the first one-way valve 8, and then into the inside of the entry hole 7 through the first one-way valve 8, and then into the position of the mounting bracket 18. At this time, the hydrogen reacts with the hydrogen storage material block 20 to form a metal hydride, which has high stability, thereby storing the hydrogen. During this process, the exhaust hole 14 exhausts the air inside the hydrogen storage tube 1 through the second one-way valve 15, and then the second one-way valve 15 is closed until the storage is completed.

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

[0097] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention 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 includes: An upper docking flange (2), wherein the upper docking flange (2) is fixedly mounted on the upper part of the hydrogen storage pipe (1); A lower docking flange (3), wherein the lower docking flange (3) is fixedly mounted on the lower part of the hydrogen storage pipe (1); A plugging core (4), the plugging core (4) being detachably mounted on the upper docking flange (2); An upper gland (5), the upper gland (5) being detachably mounted on the upper docking flange (2); An air intake assembly, the air intake assembly being mounted on the upper gland (5) and used for air intake; A lower gland (6), the lower gland (6) being mounted on the lower docking flange (3); An exhaust assembly, the exhaust assembly being mounted on the lower gland (6) and used for exhausting gas; A bracket assembly, the bracket assembly is installed inside the hydrogen storage tube (1) and is used to install hydrogen storage materials; A powder isolation component is installed on both the upper and lower sides of the bracket component to isolate powder.

2. A tubular solid-state hydrogen storage device according to claim 1, characterized in that: The air intake assembly comprises: An access hole (7), the plugging core (4) is provided with the access hole (7); A first one-way valve (8), the first one-way valve (8) being sealed and connected to the top of the upper gland (5), and the communication position between the first one-way valve (8) and the upper gland (5) is located above the inlet hole (7); A through hole (9), the plugging core (4) is provided with the through hole (9), and the through hole (9) is located on one side of the entry hole (7); a temperature sensor (10), the temperature sensor (10) being fixedly and sealingly mounted on the upper gland (5), the detection end of the temperature sensor (10) being located inside the through hole (9); A sealing part, which is mounted on the plugging core (4) and is used for sealing.

3. A tubular solid-state hydrogen storage device according to claim 2, characterized in that: The sealing portion comprises: An annular groove (11), the annular groove (11) being provided on both the upper and lower sides of the plugging core (4); A first sealing ring (12), wherein the first sealing ring (12) is disposed in each of the two annular grooves (11), wherein the first sealing ring (12) on the upper side is sealed and fixedly connected to the inner top wall of the upper pressure cover (5), and the first sealing ring (12) on the lower side is sealed and fixedly connected to the upper end surface of the lower docking flange (3).

4. A tubular solid-state hydrogen storage device according to claim 3, characterized in that: The exhaust assembly comprises: A blocking seat (13), the blocking seat (13) is fixedly mounted on the lower gland (6), and the blocking seat (13) is in sealing contact with the lower docking flange (3); A discharge hole (14), wherein the sealing seat (13) is provided with the discharge hole (14); A second one-way valve (15), the second one-way valve (15) is sealed and connected to the bottom of the lower gland (6), and the position where the second one-way valve (15) is connected to the lower gland (6) is located below the discharge hole (14); A closing portion, which is installed inside the lower pressure cover (6) and is used for sealing.

5. A tubular solid-state hydrogen storage device according to claim 4, characterized in that: The closure portion comprises: Sealing grooves (16), two sealing grooves (16) are symmetrically provided on the inner wall of the lower docking flange (3); A second sealing ring (17), wherein the second sealing ring (17) is fixedly installed inside the two sealing grooves (16), and the two second sealing rings (17) are both in sealing contact with the blocking seat (13).

6. A tubular solid-state hydrogen storage device according to claim 5, characterized in that: The bracket assembly comprises: A mounting bracket (18), wherein the mounting bracket (18) is detachably mounted inside the hydrogen storage tube (1); A mounting groove (19), wherein a plurality of the mounting grooves (19) are arranged at equal distances on the mounting bracket (18); A hydrogen storage part is installed in each of the installation grooves (19) and is used to store hydrogen.

7. A tubular solid-state hydrogen storage device according to claim 6, characterized in that: The hydrogen storage unit comprises: A hydrogen storage material compact (20), wherein two hydrogen storage material compacts (20) are symmetrically and detachably mounted on each of the mounting grooves (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).

8. A tubular solid-state hydrogen storage device according to claim 7, characterized in that: The powder isolation assembly comprises: A positioning ring (21), the positioning ring (21) being fixedly mounted on both upper and lower ends of the mounting bracket (18); A positioning groove (22), wherein the two positioning rings (21) are each provided with the positioning groove (22); Insertion grooves (23), the ends of the two positioning rings (21) away from the mounting bracket (18) are both provided with a plurality of the insertion grooves (23) at equal angles in a circular shape; The isolating part is detachably mounted on both of the two positioning rings (21) and is used to isolate powder.

9. A tubular solid-state hydrogen storage device according to claim 8, wherein the isolation portion comprises a filter (24), and the filter (24) is disposed inside the two positioning rings (21), characterized in that: Also includes: Positioning blocks (25), a plurality of the positioning blocks (25) are fixedly mounted on the two filters (24) at equal angles in a circular shape, and the plurality of the positioning blocks (25) correspond one-to-one to the plurality of the plug-in slots (23); Positioning balls (26), a plurality of positioning balls (26) are fixedly installed at equal angles in a circular shape inside the two positioning grooves (22), and the plurality of positioning balls (26) correspond one to one with the plurality of positioning blocks (25).

10. A tubular solid-state hydrogen storage device according to claim 9, characterized in that: Also includes: A heater (27), the heater (27) being sealed and fixedly mounted between the upper docking flange (2) and the lower docking flange (3), the heater (27) being in contact with the hydrogen storage pipe (1); A connector (28), wherein two connectors (28) are symmetrically connected to the heater (27).

Images