Solid hydrogen storage device

Abstract

The utility model discloses a solid hydrogen storage device which comprises a tank body and a frame body arranged in the tank body, storage boxes are placed on the frame body at intervals, adsorbents are placed in the storage boxes, and through holes are formed in the storage boxes. The storage boxes containing the adsorbents are placed in the frame body at intervals, so that the problem that the adsorbents in the tank body are accumulated together is avoided, the adsorption efficiency of the adsorbents on hydrogen entering the tank body is effectively improved, and the adsorption capacity of the hydrogen adsorption device on hydrogen molecules is further improved.

Description

Technical Field

[0001] This utility model relates to the field of hydrogen storage equipment technology, and in particular to a solid hydrogen storage device. Background Technology

[0002] Solid-state hydrogen storage is a method of storing solid hydrogen through physical adsorption. The material surface needs to have sparse pores to absorb hydrogen, and the external surface area is also relatively large. When the external environment drops to -259.1℃, the hydrogen will solidify and be absorbed by the material. This storage method is both safe and can store more hydrogen than gaseous materials.

[0003] To prevent solid hydrogen leakage, a closed device is required for storage. In traditional devices, the adsorption material inside often piles up, which impairs the hydrogen adsorption effect and affects the normal adsorption of hydrogen.

[0004] Therefore, there is an urgent need to propose a solid-state hydrogen storage device to solve the problem. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide a solid hydrogen storage device that ensures hydrogen adsorption efficiency.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a solid hydrogen storage device, which includes a tank body and a frame disposed inside the tank body. Storage boxes are placed at intervals on the frame, and adsorbent is placed inside the storage boxes. Through holes are opened on the storage boxes.

[0007] Furthermore, a gas supply pipe is connected to the tank body, and the gas supply pipe is configured to communicate with the tank body; a pump body is connected to the end of the gas supply pipe, and the pump body is used to pump external hydrogen into the tank body.

[0008] Furthermore, the pump body is connected to a filter box via a pipe, the pump body is located at one end of the filter box, the other end of the filter box is connected to an air inlet pipe, and the filter box is filled with bamboo charcoal granules.

[0009] Furthermore, the filter box is provided with an S-shaped filter channel.

[0010] Furthermore, the frame is provided with fixed seats at intervals, and the fixed seats have a receiving groove in the middle, and the storage box is placed in the receiving groove.

[0011] Furthermore, a limiting mechanism is provided at the upper end of the fixed base, the limiting mechanism being used to hold the storage box on the fixed base; the limiting mechanism includes a rotating rod and a limiting block provided at the upper end of the rotating rod, the rotating rod being provided on the side of the fixed base near the receiving groove, and a support portion protruding from the upper edge of the storage box, the support portion being placed on the upper end of the fixed base.

[0012] Furthermore, a first cooling mechanism is provided on the outer side of the tank body, which is used to reduce the temperature of the hydrogen inside the tank body.

[0013] Furthermore, the solid hydrogen storage device also includes an outer casing, in which a second cooling mechanism is placed, and the entire tank body is placed within the outer casing.

[0014] Furthermore, a guide groove is provided at the bottom inner side of the outer shell, and a slider is provided at the bottom end of the can body. The slider is engaged in the guide groove and slides back and forth along the direction of the guide groove.

[0015] Furthermore, a pull rod is provided on the outer wall of the tank body, and L-shaped limiting blocks are provided on both sides of the guide groove at the bottom end of the outer shell. A limiting space is formed between the limiting blocks and the bottom end of the outer shell. Connecting rods are provided on both sides of the slider, and the pull rod is located at the end of the connecting rod.

[0016] In summary, this utility model provides a solid hydrogen storage device that avoids the problem of adsorbent accumulating inside the tank by placing storage boxes containing adsorbent at intervals within the frame. This effectively improves the adsorption efficiency of the adsorbent for hydrogen entering the tank, thereby increasing the adsorption capacity of hydrogen molecules. Attached Figure Description

[0017] Figure 1 This is a structural cross-sectional view of a solid hydrogen storage device according to the present invention;

[0018] Figure 2 This is a structural sectional view of the frame of this utility model;

[0019] Figure 3 This is a cross-sectional view of the filter box of this utility model;

[0020] Figure 4 This is a cross-sectional view of the combination of the slider and guide groove of this utility model;

[0021] Figure 5 for Figure 4 The diagram shows a partial structure along the AA direction. Detailed Implementation

[0022] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] Please see Figures 1 to 5This invention discloses a solid-state hydrogen storage device, comprising a tank body 10 and a frame 20 disposed within the tank body 10. Storage boxes 30 are placed vertically at intervals on the frame 20, each containing an adsorbent 32. Each storage box 30 has a through hole 31 to facilitate the entry of hydrogen gas into the storage box 30. The adsorbent 32 then performs hydrogen storage by physicochemical adsorption on the hydrogen gas entering the tank body 10. By spaced the storage boxes 30 containing the adsorbent 32 within the frame 20, the problem of adsorbent 32 accumulating within the tank body 10 is avoided, effectively improving the adsorption capacity of the adsorbent 32 on the hydrogen gas entering the tank body 10. The adsorption efficiency of hydrogen in the body 10 is improved, thereby increasing the amount of hydrogen molecules adsorbed by this invention. The frame 20 is placed inside the tank body 10, and the tank body 10 is then sealed to withstand the pressure changes after hydrogen injection. This is a known technique and will not be elaborated upon here. The adsorbent 32 can be at least one of the following hydrogen storage materials: carbonaceous materials, metal-organic framework materials, zeolite imidazole ester framework materials, microporous / mesoporous zeolite molecular sieves, etc. In this embodiment, the adsorbent 32 is an activated carbon block, and the through holes 31 are located at the upper and lower ends of the storage box 30, further allowing for smoother hydrogen flow within the tank body 10.

[0026] In one embodiment, a gas supply pipe 40 is connected to the tank body 10, and the gas supply pipe 40 is configured to communicate with the tank body 10 to facilitate the entry of external hydrogen into the tank body 10 and the discharge of hydrogen inside the tank body 10. Specifically, the tank body 10 is provided with a vent 11, and the gas supply pipe 40 is configured to communicate with the tank body 10 through the vent 11, thereby facilitating the entry of external hydrogen into the tank body 10 and the discharge of hydrogen inside the tank body 10. The number of gas supply pipes 40 can be designed as one or two, with the goal of achieving the effect of entering external hydrogen into the tank body 10 and discharging hydrogen inside the tank body 10. The gas supply pipe 40 is provided with an exhaust valve structure to facilitate the discharge of hydrogen stored in the tank body 10 after opening the exhaust valve.

[0027] Furthermore, a pump body 50 is connected to the end of the gas transmission pipe 40. The pump body 50 is used to pump external hydrogen into the tank body 10. After the hydrogen storage operation is completed, the pressure inside the tank body 10 is in the range of 35-70 MPa, which facilitates the storage effect of hydrogen in the tank body 10.

[0028] To improve the cleanliness of hydrogen entering the tank body 10, the present invention can adopt the following structure.

[0029] The pump body 50 is connected to the filter box 60 via a pipe. Specifically, the pump body 50 is located at one end of the filter box 60, and the other end of the filter box 60 is connected to the air inlet pipe 61. The filter box 60 is filled with bamboo charcoal particles 62. External hydrogen enters the filter box 60 through the air inlet pipe 61, and the filter box 60 filters the impurities carried in the hydrogen, thereby improving the cleanliness of the hydrogen entering the tank body 10.

[0030] Furthermore, an S-shaped filtration channel is provided inside the filter box 60 so that impurities carried in the external hydrogen gas can be better filtered by the bamboo charcoal particles 62 inside the filter box 60. Specifically, baffles 63 are arranged alternately inside the filter box 60 to form an S-shaped filtration channel inside the filter box 60. In this embodiment, the baffles 63 are respectively arranged at the top and bottom ends of the inner sidewall of the filter box 60.

[0031] In one embodiment, the frame 20 is provided with fixed seats 21 at intervals, and the storage box 30 is placed on the fixed seats 21. Specifically, the fixed seat 21 has a receiving groove 211 in the middle, and the storage box 30 is placed in the receiving groove 211. This effectively avoids the problem of adsorbent 32 accumulating in the can body 10, effectively improves the adsorption efficiency of adsorbent 32 on hydrogen entering the can body 10, and thus also improves the adsorption capacity of hydrogen molecules of this invention.

[0032] Furthermore, a limiting mechanism 22 is provided at the upper end of the fixed base 21 to securely hold the storage box 30 on the fixed base 21. The limiting mechanism 22 includes a rotating rod 221 and a stop block 222 provided at the upper end of the rotating rod 221. The rotating rod 221 is located on the side of the fixed base 21 near the receiving groove 211. A support part 33 protrudes from the upper edge of the storage box 30. The support part 33 is placed on the upper end of the fixed base 21. The height of the rotating rod 221 protruding from the upper end surface of the fixed base 21 must be greater than the thickness of the support part 33 to facilitate the stop block 222 to limit the support part 33, thereby securing the storage box 30. The storage box 30 is securely placed on the fixed base 21. Specifically, the orientation of the stop block 222 is adjusted by rotating the rotating rod 221. When the stop block 222 is rotated to the side away from the receiving groove 211, the support part 33 will not be blocked by the stop block 222. The storage box 30 is placed in the receiving groove 211. Then, by rotating the rotating rod 221, the stop block 222 is made to face the receiving groove 211, thereby blocking the support part 33 and securing the storage box 30 securely on the fixed base 21. In this embodiment, the rotating connection method of the rotating rod 221 on the fixed base 21 is a known technology and will not be described in detail here.

[0033] As hydrogen enters the tank body 10, the gas pressure inside the tank body 10 increases, the hydrogen density inside the tank body 10 gradually increases, and the hydrogen temperature inside the tank body 10 also increases. In order to reduce the gas temperature inside the tank body 10 and keep the gas temperature in a lower range to increase the adsorption capacity of the adsorbent 32 for hydrogen molecules, the present invention adopts the following structure to solve this problem.

[0034] A first cooling mechanism 70 is attached to the outer side of the tank body 10. The first cooling mechanism 70 is used to reduce the temperature of hydrogen inside the tank body 10 so that the gas temperature inside the tank body 10 is in a lower range to increase the adsorption amount of hydrogen molecules by the adsorbent 32. In this embodiment, the first cooling mechanism 70 can be a semiconductor cooler.

[0035] In one embodiment, the solid hydrogen storage device further includes an outer casing 80, within which a second cooling mechanism 90 is placed. The entire tank body 10 is placed inside the outer casing 80, which isolates the tank body 10 from the external environment. The second cooling mechanism 90 cools the entire tank body 10 inside the outer casing 80, further ensuring that the temperature of the hydrogen inside the tank body 10 is lowered, thereby increasing the adsorption capacity of the adsorbent 32 for hydrogen molecules. In this embodiment, the second cooling mechanism 90 can be a refrigeration device, which will not be described in detail here.

[0036] In one embodiment, a door panel (not shown) is provided on one side of the outer casing 80. The can body 10 is placed inside the outer casing 80 by opening the door panel, thereby achieving the assembly effect of the can body 10 and the outer casing 80.

[0037] Furthermore, a guide groove 81 is provided at the bottom inner side of the outer shell 80, and a slider 12 is provided at the bottom end of the can body 10. The slider 12 is engaged in the guide groove 81 and slides back and forth along the direction of the guide groove 81, thereby achieving the effect of limiting the placement of the can body 10. In this embodiment, there is a certain distance between the guide groove 81 and the inner wall of the outer shell 80, so that the outer shell 80 can provide sufficient accommodating space for the second cooling mechanism 90. In addition, it also avoids the can body 10 from rubbing against the inner wall of the outer shell 80 when placed inside the outer shell 80, thus affecting the assembly quality of the product.

[0038] Furthermore, rollers 13 are provided at the four corners of the slider 12. The rollers 13 are placed in the guide groove 81, and the can body 10 can be better placed in the outer shell 80 through the roller 13 structure.

[0039] In one embodiment, to facilitate the removal of the can body 10 from the outer shell 80, a pull rod 14 structure can be installed on the outer wall of the can body 10. This allows the user to apply external force through the pull rod 14 structure to pull the can body 10 out of the guide groove 81 in the outer shell 80, thereby achieving the separation operation of the can body 10 from the outer shell 80. In this embodiment, the pull rod 14 has a U-shaped structure.

[0040] Specifically, L-shaped limiting blocks 82 are provided on both sides of the guide groove 81 at the bottom end of the outer shell 80, and a limiting space is formed between the limiting blocks 82 and the bottom end of the outer shell 80. Connecting rods 15 are provided on both sides of the slider 12, and the pull rod 14 is provided at the end of the connecting rod 15. When the can body 10 is placed inside the outer shell 80, the connecting rod 15 is placed in the limiting space between the limiting blocks 82 and the bottom end of the outer shell 80. The limiting blocks 82 limit the connecting rod 15, thereby further preventing the can body 10 from swinging inside the outer shell 80.

[0041] In one embodiment, a cover plate 83 is provided at the top of the outer casing 80, and a through groove is provided in the middle of the cover plate 83. A guide brush is provided at the through groove in the middle of the cover plate 83. When the tank body 10 is placed inside the outer casing 80, the gas supply pipe 40 passes through the through groove, and the pump body 50 and filter box 60 are placed on the cover plate 83. The guide brush is used to isolate the inside of the outer casing 80 from the outside to prevent external dust from entering the outer casing 80. Alternatively, the through groove can be sealed by a sealing structure to isolate the inside of the outer casing 80 from the outside, so as to facilitate the cooling of the internal temperature of the outer casing 80. The sealing structure can be sealing tape, sealant, etc.

[0042] In practical use, the can body 10 is first placed inside the outer shell 80 along the guide groove 81, the door is closed, and the cover plate 83 is placed on top. At this time, the gas supply pipe 40 passes through the groove, and the pump body 50 and filter box 60 are placed on the cover plate 83. Then, the outer shell 80 is sealed by the sealing mechanism. The gas pump is turned on to deliver external hydrogen gas to the can body 10 through the filter box 60 and the gas supply pipe 40. As hydrogen gas is delivered into the can body 10, the internal gas pressure of the can body 10 increases, and the hydrogen temperature also increases. Therefore, after the gas pump is turned on, the first cooling mechanism 70 and the second cooling mechanism 90 are started simultaneously to ensure that the internal hydrogen temperature of the can body 10 is in a low range, so as to increase the adsorption capacity of the adsorbent 32 for hydrogen molecules.

[0043] In summary, the solid hydrogen storage device of this utility model avoids the problem of adsorbent 32 accumulating in the tank body 10 by placing storage boxes 30 containing adsorbent 32 at intervals inside the frame 20, effectively improving the adsorption efficiency of adsorbent 32 on hydrogen entering the tank body 10, and thus also improving the adsorption capacity of hydrogen molecules of this utility model.

[0044] The above-described embodiments are merely illustrative of several implementations of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A solid-state hydrogen storage device, characterized in that: Includes a tank body and a frame installed inside the tank body. Storage boxes are placed at intervals on the frame, and absorbent is placed inside the storage boxes. Through holes are opened in the storage boxes. The solid hydrogen storage device also includes an outer shell, and the entire tank body is placed inside the outer shell; a guide groove is provided at the bottom inner side of the outer shell, and a slider is provided at the bottom end of the tank body. The slider is engaged in the guide groove and slides back and forth along the direction of the guide groove.

2. The solid-state hydrogen storage device according to claim 1, characterized in that: A gas supply pipe is connected to the tank body, and the gas supply pipe is connected to the tank body; a pump body is connected to the end of the gas supply pipe, and the pump body is used to pump external hydrogen into the tank body.

3. A solid-state hydrogen storage device according to claim 2, characterized in that: The pump body is connected to a filter box via a pipe. The pump body is located at one end of the filter box, and the other end of the filter box is connected to an air inlet pipe. The filter box is filled with bamboo charcoal granules.

4. A solid-state hydrogen storage device according to claim 3, characterized in that: The filter box is equipped with an S-shaped filter channel.

5. A solid-state hydrogen storage device according to claim 1, characterized in that: The frame is provided with fixed seats at intervals, and the fixed seats have a receiving groove in the middle, and the storage box is placed in the receiving groove.

6. A solid-state hydrogen storage device according to claim 5, characterized in that: The upper end of the fixed base is provided with a limiting mechanism, which is used to lock the storage box on the fixed base; the limiting mechanism includes a rotating rod and a stop block provided on the upper end of the rotating rod. The rotating rod is provided on the side of the fixed base near the receiving groove. The upper edge of the storage box is provided with a support portion, which is placed on the upper end of the fixed base.

7. A solid-state hydrogen storage device according to claim 1, characterized in that: A first cooling mechanism is provided on the outer side of the tank body, which is used to reduce the temperature of hydrogen inside the tank body.

8. A solid-state hydrogen storage device according to claim 1, characterized in that: A second cooling mechanism is placed inside the outer casing.

9. A solid-state hydrogen storage device according to claim 1, characterized in that: A pull rod is provided on the outer wall of the tank body, and L-shaped limiting blocks are provided on both sides of the guide groove at the bottom end of the outer shell. A limiting space is formed between the limiting blocks and the bottom end of the outer shell. Connecting rods are provided on both sides of the slider, and the pull rod is located at the end of the connecting rod.

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