A hydrogen storage device and method based on a hydrogen storage alloy hydride

Abstract

The present invention discloses a hydrogen storage device based on a hydrogen storage alloy hydride, which includes a lifting mechanism and a clamping mechanism. The lifting mechanism includes a base, and a plurality of lifting grooves are provided at the upper end of the base. A lifting assembly is installed in the lifting groove. The lifting assembly includes a lifting seat, a damping spring, a carrier plate and a first spring. The lifting seat is slidably installed in the lifting groove. The damping spring is fixedly connected to both the lifting groove and the lifting seat. A limiting groove is provided at the upper end of the lifting seat. The carrier plate is slidably installed in the limiting groove. The first spring is fixedly connected to both the limiting groove and the carrier plate. When the lifting seat moves to the lowest position, the base will lock it. The process of the carrier plate moving downward in the limiting groove can release the locked state of the lifting seat. Through the above structural settings of the present invention, in cooperation with the clamping frame and the hydrogen charging assembly, the hydrogen storage cylinder is clamped and hydrogen charged, which is convenient for storing, transporting and hydrogen charging multiple hydrogen storage cylinders, and improves the hydrogen charging efficiency.

Description

Technical Field

[0001] The present invention relates to the field of metal hydride hydrogen storage equipment, and particularly to a hydrogen storage equipment based on hydrogen storage alloy hydride. Background Art

[0002] The current hydrogen storage methods are divided into: high-pressure gaseous hydrogen storage, liquid hydrogen storage, and solid hydrogen storage using hydrogen storage materials as the medium. Since solid hydrogen storage has the advantages of high volumetric hydrogen storage density, low-pressure safety, and high hydrogen purity, solid hydrogen storage is an important direction for the future development of hydrogen storage technology.

[0003] The existing metal hydride hydrogen storage equipment has the following deficiencies:

[0004] When the prior art performs solid hydrogen storage, a single hydrogen storage cylinder is mostly used, which is inconvenient for transportation, storage, and inflation, and has low hydrogen filling efficiency, which is not conducive to use;

[0005] When the hydrogen storage alloy bed absorbs hydrogen, it needs to release a large amount of heat. The existing metal hydride hydrogen storage cylinders do not have a good heat dissipation structure, and the thermal stress of the hydrogen storage alloy is easy to damage the container shell, resulting in a shortened service life of the equipment. Summary of the Invention

[0006] The purpose of the present application is to provide a hydrogen storage equipment based on hydrogen storage alloy hydride. A plurality of lifting grooves are provided at the upper end of the base. A lifting assembly is installed in the lifting grooves. The lifting assembly includes a lifting seat, a damping spring, a carrier plate, and a first spring. The lifting seat is slidably installed in the lifting groove. The lower end of the damping spring is fixedly connected to the lower end of the lifting groove, and the upper end of the damping spring is fixedly connected to the lower end of the lifting seat. A limiting groove is provided at the upper end of the lifting seat. The carrier plate is slidably installed in the limiting groove. The lower end of the first spring is fixedly connected to the lower end of the limiting groove, and the upper end of the first spring is fixedly connected to the lower end of the carrier plate. When the lifting seat moves to the lowest position, the base will lock it. During the process of the carrier plate moving downward in the limiting groove, the locking state of the lifting seat can be released. Place the hydrogen storage cylinder on the carrier plate. When the hydrogen storage cylinder presses down the carrier plate, the process of the carrier plate moving downward in the limiting groove can release the locking state of the lifting seat. The lifting seat moves upward under the action of the damping spring, pushing the hydrogen storage cylinder upward, and cooperating with the clamping frame and the hydrogen filling assembly to clamp and fill the hydrogen storage cylinder, which is convenient for storing, transporting, and filling a plurality of hydrogen storage cylinders, and improves the hydrogen filling efficiency.

[0007] To achieve the above object, the present application provides the following technical solution: A hydrogen storage device based on a hydrogen storage alloy hydride, including a plurality of hydrogen storage bottles. The hydrogen storage bottle includes a bottle body, a filter, a bottle mouth valve and a gas guide pipe. The bottle body is filled with a hydrogen storage alloy bed body. The bottle mouth valve is fixedly installed at the top of the bottle body. The bottle mouth valve, the filter and the gas guide pipe are fixedly connected in sequence from top to bottom. It also includes a lifting mechanism and a clamping mechanism. The lifting mechanism includes a base. A plurality of universal wheels are fixedly installed at the lower end of the base. A plurality of lifting grooves are provided at the upper end of the base. A lifting component is installed in the lifting groove. The lifting component includes a lifting seat, a damping spring, a carrier plate and a first spring. The lifting seat is slidably installed in the lifting groove. The lower end of the damping spring is fixedly connected to the lower end of the lifting groove. The upper end of the damping spring is fixedly connected to the lower end of the lifting seat. A limiting groove is provided at the upper end of the lifting seat. The carrier plate is slidably installed in the limiting groove. The lower end of the first spring is fixedly connected to the lower end of the limiting groove. The upper end of the first spring is fixedly connected to the lower end of the carrier plate. When the lifting seat moves to the lowest position, the base will lock it. The process of the carrier plate moving down in the limiting groove can release the locked state of the lifting seat. The clamping mechanism includes a top plate, a plurality of clamping frames, a plurality of connecting sleeves and a hydrogen charging component. The top plate is arranged above the base. A plurality of columns are fixedly installed between the top plate and the base. A plurality of the clamping frames, a plurality of connecting sleeves and the hydrogen charging component are all fixedly installed on the top plate. A plurality of the connecting sleeves are all communicated with the hydrogen charging component. Each hydrogen storage bottle is arranged between the corresponding carrier plate and the corresponding clamping frame. The hydrogen storage bottle includes a bottle body. A plurality of heat conduction partition plates are fixedly installed inside the bottle body. A plurality of heat dissipation fins are fixedly installed on the outer wall of the hydrogen storage bottle. A heat conduction rod is fixedly installed on the hydrogen storage bottle. One end of the heat conduction rod is fixedly connected to a plurality of heat conduction partition plates. The other end of the heat conduction rod is fixedly connected to a plurality of heat dissipation fins. A connection head is fixedly installed at the top of the hydrogen storage bottle. The connection head is communicated with the bottle mouth valve. When one end of the connection head is inserted into one end of the connecting sleeve, the two are communicated. When the connection head is separated from the connecting sleeve, both are in a sealed state.

[0008] Preferably, a vertical plate is fixedly installed in the lifting groove. A first through hole is provided at the top of the vertical plate. First clamping blocks are slidably installed on both sides of the first through hole. The upper end surface of the first clamping block is inclined. A second spring is arranged in the first through hole. The two ends of the second spring are respectively fixedly connected to the two first clamping blocks. A convex column is fixedly installed in the limiting groove. A vertical plate groove is provided at the lower end of the convex column. Second through holes are provided on both sides of the convex column. A second clamping block is slidably installed in the second through hole. The upper end surface of the second clamping block is inclined. A convex column groove is provided at the lower end of the carrier plate. Flipping plates are installed on both sides of the convex column groove through spring hinges.

[0009] Preferably, a pedal is fixedly installed on the top of the lifting seat, and a plurality of pedal grooves are provided at the upper end of the base, and each pedal is disposed above the corresponding pedal groove.

[0010] Preferably, the clamping frame includes an arc-shaped connecting rod and a plurality of vertical rods. The plurality of vertical rods are fixedly installed at the lower end of the top plate. The arc-shaped connecting rod is fixedly connected to the plurality of vertical rods, and the shapes of the lower end surfaces of the plurality of vertical rods are all in conformity with the shape of the upper end surface of the bottle body.

[0011] Preferably, the hydrogen filling assembly includes a plurality of safety valves, a connecting pipeline, a pressure reducing valve and an inflation pipeline. The pressure reducing valve is fixedly installed at the upper end of the top plate. One end of the inflation pipeline is communicated with the intake end of the pressure reducing valve, the other end of the inflation pipeline is connected with the hydrogen-using equipment, the connecting pipeline is communicated with the outlet end of the pressure reducing valve, the plurality of safety valves are all communicated with the connecting pipeline, and each safety valve is respectively communicated with the corresponding connecting sleeve.

[0012] Preferably, the plurality of heat-conducting partition plates are arranged in parallel at equal intervals, and a plurality of material-passing holes are provided on the heat-conducting partition plates.

[0013] Preferably, the connecting sleeve includes a first outer shell, a first fixing frame, a first moving member and a third spring. The first outer shell is fixedly installed on the top plate. The first fixing frame is fixedly installed at the top inside the first outer shell. The first moving member is slidably installed on the first fixing frame. A first conical block is fixedly installed in the middle of the first moving member. The third spring is sleeved on the first moving member, and the third spring is arranged between the first fixing frame and the first conical block. A first inclined surface ring is fixedly installed on the inner wall of the first outer shell. The first inclined surface ring is in fit with the inclined surface of the first conical block. A first sealing washer is sleeved on the inclined surface of the first conical block.

[0014] Preferably, the connector includes a second outer shell, a second fixing frame, a second moving member and a fourth spring. The second outer shell is fixedly installed on the bottle mouth valve. The second fixing frame is fixedly installed at the top inside the second outer shell. The second moving member is slidably installed on the second fixing frame. A second conical block is fixedly installed in the middle of the second moving member. The fourth spring is sleeved on the second moving member, and the fourth spring is arranged between the second fixing frame and the second conical block. A second inclined surface ring is fixedly installed on the inner wall of the second outer shell. The second inclined surface ring is in fit with the inclined surface of the second conical block. A second sealing washer is sleeved on the inclined surface of the second conical block.

[0015] Preferably, a connecting groove is provided at one end of the first outer shell, the diameter of the connecting groove is the same as the diameter of one end of the second outer shell, and a sealing ring is embedded in the inner wall of the connecting groove.

[0016] Preferably, the present invention further provides a method for storing hydrogen, including the following steps:

[0017] Initially, the lifting seat is in a locked state, the hydrogen storage bottle is placed on the carrier plate, the hydrogen storage bottle presses down the carrier plate, the bottom of the bottle body is embedded in the limit groove, the hydrogen storage bottle is limited, the carrier plate moves down in the limit groove, and the locking state of the lifting seat is released, the lifting seat moves upward under the action of the damping spring, pushing the hydrogen storage bottle upward, the upper end surface of the bottle body contacts and abuts against the clamping frame, the hydrogen storage bottle is clamped and fixed, the connector is inserted into the connecting sleeve, so that the bottle body is connected with the hydrogen charging assembly;

[0018] Hydrogen is injected into the bottle through the hydrogen filling assembly, and the generated heat is transferred to the heat sink through the heat-conducting baffle and the heat-conducting rod. After the filling is completed, the hydrogen filling assembly stops filling, and the hydrogen storage bottle is stored on the lifting mechanism and then moved and transported;

[0019] When using the hydrogen storage bottle, push the lifting seat downward to re-lock it. The bottle body moves downward with the lifting seat and disengages from the clamping frame. The connecting head disengages from the connecting sleeve and is in a sealed state. The hydrogen storage bottle can be taken out for normal use. After taking out the hydrogen storage bottle, the carrier plate is reset under the action of the first spring. After the hydrogen storage bottle is used, repeat the above operation to store and inflate it.

[0020] In summary, the technical effects and advantages of the present invention are as follows:

[0021] 1. In the present invention, a plurality of lifting slots are provided at the upper end of the base, and a lifting assembly is installed in the lifting slots. The lifting assembly includes a lifting seat, a damping spring, a carrier plate and a first spring. The lifting seat is slidably installed in the lifting slots, the lower end of the damping spring is fixedly connected to the lower end of the lifting slot, the upper end of the damping spring is fixedly connected to the lower end of the lifting seat, the upper end of the lifting seat is provided with a limiting slot, the carrier plate is slidably installed in the limiting slot, the lower end of the first spring is fixedly connected to the lower end of the limiting slot, and the upper end of the first spring is fixedly connected to the lower end of the carrier plate When the lifting seat moves to the lowest position, the base will lock it. The lifting seat can be unlocked when the carrier plate moves downward in the limit groove. The hydrogen storage bottle is placed on the carrier plate, and the hydrogen storage bottle presses down on the carrier plate. The lifting seat can be unlocked when the carrier plate moves downward in the limit groove. The lifting seat moves upward under the action of the damping spring, pushing the hydrogen storage bottle upward, and cooperating with the clamping frame and the hydrogen charging assembly to clamp and charge the hydrogen storage bottle, which facilitates the storage, transportation and charging of multiple hydrogen storage bottles and improves the hydrogen charging efficiency.

[0022] 2. In the present invention, the hydrogen storage cylinder includes a cylinder body. A plurality of heat-conducting partitions are fixedly installed inside the cylinder body. A plurality of heat sinks are fixedly installed on the outer wall of the hydrogen storage cylinder. A heat-conducting rod is fixedly installed on the hydrogen storage cylinder. One end of the heat-conducting rod is fixedly connected to the plurality of heat-conducting partitions, and the other end of the heat-conducting rod is fixedly connected to the plurality of heat sinks. The heat generated during hydrogen filling is transferred to the heat sinks through the heat-conducting partitions and the heat-conducting rod, improving the heat dissipation efficiency, reducing the damage to the cylinder body caused by the thermal stress of the hydrogen storage alloy, and increasing the service life of the hydrogen storage cylinder.

[0023] 3. In the present invention, by providing a connector on the hydrogen storage cylinder, providing a connecting sleeve on the clamping mechanism, and connecting the connecting sleeve to the hydrogen filling assembly, when one end of the connector is inserted into one end of the connecting sleeve, the two are connected, and when the connector is separated from the connecting sleeve, both are in a sealed state, improving the convenience of connecting and separating the hydrogen storage cylinder and the hydrogen filling assembly, and further improving the hydrogen filling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 It is a schematic three-dimensional structure diagram of the present invention;

[0026] Figure 2 It is a schematic structure diagram of the present invention without the hydrogen storage cylinder;

[0027] Figure 3 It is a schematic sectional structure diagram of the lifting mechanism of the present invention;

[0028] Figure 4 It is a schematic sectional structure diagram of the clamping mechanism of the present invention;

[0029] Figure 5 It is a schematic structure diagram of the hydrogen storage cylinder of the present invention;

[0030] Figure 6 It is a schematic sectional structure diagram of the hydrogen storage cylinder of the present invention;

[0031] Figure 7 For the present invention Figure 4 The enlarged view at A;

[0032] Figure 8 It is a schematic sectional structure diagram of the connector of the present invention.

[0033] In the figure: 1. Lifting mechanism; 101. Base; 102. Lifting groove; 103. Lifting seat; 104. Pedal; 105. Damping spring; 106. Vertical plate; 107. First clamping block; 108. Second spring; 109. Carrier plate; 110. Flipping plate; 111. Convex column; 112. Second clamping block; 113. Universal wheel; 2. Clamping mechanism; 201. Top plate; 202. Clamping frame; 203. Connecting sleeve; 2031. First outer shell; 2032. First fixing frame; 2033. First moving part; 2034. Third spring; 2035. First sealing washer; 2036. Connecting groove; 2037. Sealing ring; 204. Safety valve; 205. Connecting pipeline; 206. Pressure reducing valve; 207. Inflation pipeline; 3. Column; 4. Hydrogen storage cylinder; 401. Cylinder body; 402. Filter; 403. Bottle mouth valve; 404. Connector; 4041. Second outer shell; 4042. Second fixing frame; 4043. Second moving part; 4044. Fourth spring; 4045. Second sealing washer; 405. Air guide pipe; 406. Heat conduction partition board; 407. Heat sink; 408. Heat conduction rod. Detailed implementation manners

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] Embodiment: Refer to Figure 1 - Figure 3A hydrogen storage device based on a hydrogen storage alloy as shown includes a plurality of hydrogen storage bottles 4. The hydrogen storage bottle 4 includes a bottle body 401, a filter 402, a bottle mouth valve 403 and a gas guide pipe 405. The bottle body 401 is filled with a hydrogen storage alloy bed. The bottle mouth valve 403 is fixedly installed at the top of the bottle body 401. The bottle mouth valve 403, the filter 402 and the gas guide pipe 405 are fixedly connected in sequence from top to bottom. It further includes a lifting mechanism 1 and a clamping mechanism 2. The lifting mechanism 1 includes a base 101. A plurality of universal wheels 113 are fixedly installed at the lower end of the base 101. A plurality of lifting grooves 102 are provided at the upper end of the base 101. A lifting component is installed in the lifting groove 102. The lifting component includes a lifting seat 103, a damping spring 105, a carrier plate 109 and a first spring. The lifting seat 103 is slidably installed in the lifting groove 102. The lower end of the damping spring 105 is fixedly connected to the lower end of the lifting groove 102. The upper end of the damping spring 105 is fixedly connected to the lower end of the lifting seat 103. A limiting groove is provided at the upper end of the lifting seat 103. The carrier plate 109 is slidably installed in the limiting groove. The lower end of the first spring is fixedly connected to the lower end of the limiting groove. The upper end of the first spring is fixedly connected to the lower end of the carrier plate 109. When the lifting seat 103 moves to the lowest position, the base 101 will lock it. Initially, the lifting seat 103 is in a locked state. The hydrogen storage bottle 4 is placed on the carrier plate 109. The hydrogen storage bottle 4 presses down the carrier plate 109. During the process of the carrier plate 109 moving downward in the limiting groove, the locked state of the lifting seat 103 can be released. The lifting seat 103 moves upward under the action of the damping spring 105, pushing the hydrogen storage bottle 4 upward.

[0036] As Figure 4 shown, the clamping mechanism 2 includes a top plate 201, a plurality of clamping frames 202, a plurality of connecting sleeves 203 and a hydrogen charging component. The top plate 201 is arranged above the base 101. A plurality of columns 3 are fixedly installed between the top plate 201 and the base 101. The plurality of clamping frames 202, the plurality of connecting sleeves 203 and the hydrogen charging component are all fixedly installed on the top plate 201. The plurality of connecting sleeves 203 are all communicated with the hydrogen charging component. Each hydrogen storage bottle 4 is arranged between the corresponding carrier plate 109 and the corresponding clamping frame 202. The hydrogen storage bottle 4 moves upward with the lifting seat 103 and finally contacts and abuts against the clamping frame 202 to clamp and fix the hydrogen storage bottle 4.

[0037] As Figure 5 and Figure 6As shown, the hydrogen storage cylinder 4 includes a cylinder body 401. A plurality of heat-conducting partitions 406 are fixedly installed inside the cylinder body 401. A plurality of heat sinks 407 are fixedly installed on the outer wall of the hydrogen storage cylinder 4. A heat-conducting rod 408 is fixedly installed on the hydrogen storage cylinder 4. One end of the heat-conducting rod 408 is fixedly connected to the plurality of heat-conducting partitions 406, and the other end of the heat-conducting rod 408 is fixedly connected to the plurality of heat sinks 407. A connector 404 is fixedly installed at the top of the hydrogen storage cylinder 4. The connector 404 communicates with the bottle mouth valve 403. When one end of the connector 404 is inserted into one end of the connection sleeve 203, the two are in communication. When the connector 404 is separated from the connection sleeve 203, both are in a sealed state. During the upward movement of the hydrogen storage cylinder 4, the connector 404 is inserted into the connection sleeve 203 to connect the cylinder body 401 with the hydrogen filling assembly, and the hydrogen filling assembly fills hydrogen into the cylinder body 401. Compared with filling a single hydrogen storage cylinder 4, this device is convenient for filling multiple hydrogen storage cylinders 4 simultaneously and does not require manual operation, increasing the convenience of use and improving the hydrogen filling efficiency. The heat generated during hydrogen filling is transferred to the heat sinks 407 through the heat-conducting partitions 406 and the heat-conducting rod 408 to improve the heat dissipation efficiency. After the hydrogen filling is completed, the hydrogen filling assembly stops filling. The hydrogen storage cylinder 4 is stored on the lifting mechanism 1, which is convenient for moving and transporting through the universal wheels 113. When using the hydrogen storage cylinder 4, the lifting seat 103 is pushed downward to re-lock it. The cylinder body 401 moves downward with the lifting seat 103 and disengages from the clamping frame 202. The connector 404 disengages from the connection sleeve 203 and is in a sealed state. The hydrogen storage cylinder 4 can be taken out for normal use. After the hydrogen storage cylinder 4 is taken out, the carrier plate 109 resets under the action of the first spring. After the hydrogen storage cylinder 4 is used up, the above operations can be repeated for storage and hydrogen filling.

[0038] Embodiment 2 is different from the above embodiment in that a vertical plate 106 is fixedly installed in the lifting groove 102. A first through hole is provided at the top of the vertical plate 106. First clamping blocks 107 are slidably installed on both sides of the first through hole. The upper end surface of the first clamping block 107 is inclined. A second spring 108 is arranged in the first through hole. Two ends of the second spring 108 are fixedly connected to the two first clamping blocks 107 respectively. A convex column 111 is fixedly installed in the limiting groove. A vertical plate groove is provided at the lower end of the convex column 111. Second through holes are provided on both sides of the convex column 111. When the lifting seat 103 moves downward, the vertical plate 106 is inserted into the vertical plate groove. The lower end of the convex column 111 contacts the upper end surface of the first clamping block 107 and pushes the first clamping block 107 to retract into the first through hole. When the second through hole descends to the position of the first through hole, the first clamping block 107 pops out of the first through hole under the action of the second spring 108 and is inserted into the second through hole, and the lifting seat 103 is clamped and locked. A second clamping block 112 is slidably installed in the second through hole. The upper end surface of the second clamping block 112 is inclined. A convex column groove is provided at the lower end of the carrier plate 109. Flipping plates 110 are installed on both sides of the convex column groove through spring hinges. When the first clamping block 107 is inserted into the second through hole, it pushes the second clamping block 112 to extend out of the second through hole. The flipping plate 110 can only flip downward and reset under the action of the spring hinge. During the process of pushing the carrier plate 109 downward, the flipping plate 110 contacts the upper end surface of the second clamping block 112 and pushes the second clamping block 112 to retract into the second through hole. The second clamping block 112 pushes the first clamping block 107 out of the second through hole, the lifting seat 103 is released from the locked state, and moves upward under the action of the damping spring 105.

[0039] A pedal 104 is fixedly installed at the top of the lifting seat 103. A plurality of pedal grooves are provided at the upper end of the base 101. Each pedal 104 is arranged above the corresponding pedal groove. When using the hydrogen storage bottle 4, the pedal 104 can be stepped on to make the pedal 104 enter the pedal groove to lock the lifting seat 103, which is convenient for removing the hydrogen storage bottle 4.

[0040] Embodiment 3 is different from the above embodiment in that the clamping frame 202 includes an arc-shaped connecting rod and a plurality of vertical rods. The plurality of vertical rods are fixedly installed at the lower end of the top plate 201. The arc-shaped connecting rod is fixedly connected to the plurality of vertical rods. The shapes of the lower end surfaces of the plurality of vertical rods are all matched with the shape of the upper end surface of the bottle body 401, and cooperate with the lifting seat 103 and the carrier plate 109 to stably clamp the bottle body 401, improving the safety of storing and inflating the hydrogen storage bottle 4.

[0041] Example 4, which is different from the above embodiments, is that the hydrogen charging assembly includes a plurality of safety valves 204, a connecting pipeline 205, a pressure reducing valve 206, and a charging pipeline 207. The pressure reducing valve 206 is fixedly installed at the upper end of the top plate 201. One end of the charging pipeline 207 is communicated with the intake end of the pressure reducing valve 206, and the other end of the charging pipeline 207 is connected to the hydrogen-consuming equipment. The connecting pipeline 205 is communicated with the outlet end of the pressure reducing valve 206. A plurality of the safety valves 204 are all communicated with the connecting pipeline 205, and each of the safety valves 204 is respectively communicated with a corresponding connecting sleeve 203. Through the above settings, the plurality of connecting sleeves 203 are communicated with the hydrogen-consuming equipment, and can charge a plurality of hydrogen storage bottles 4, improving the hydrogen charging efficiency. The safety valve 204 can automatically close after the hydrogen charging pressure reaches a certain value, realizing quantitative hydrogen charging of the hydrogen storage bottle 4 and preventing overcharging or undercharging of hydrogen in the bottle body 401.

[0042] Example 5, which is different from the above embodiments, is that a plurality of the heat-conducting partitions 406 are arranged in parallel at equal distances. A plurality of material passing holes are provided on the heat-conducting partitions 406 to separate the hydrogen storage alloy in the bottle body 401 into different spaces, dispersing the pulverization and accumulation of the hydrogen storage alloy after hydrogen charging and discharging. At the same time, it acts as a heat transfer fin, which is more conducive to the conduction of heat in the bottle body 401 and also enhances the structural strength of the bottle body 401 to a certain extent.

[0043] Example 6, which is different from the above embodiments, is as Figure 7 shown, the connecting sleeve 203 includes a first outer shell 2031, a first fixing frame 2032, a first moving member 2033, and a third spring 2034. The first outer shell 2031 is fixedly installed on the top plate 201. The first fixing frame 2032 is fixedly installed at the top inside the first outer shell 2031. The first moving member 2033 is slidably installed on the first fixing frame 2032. A first conical block is fixedly installed in the middle of the first moving member 2033. The third spring 2034 is sleeved on the first moving member 2033, and the third spring 2034 is arranged between the first fixing frame 2032 and the first conical block. A first inclined surface ring is fixedly installed on the inner wall of the first outer shell 2031, and the first inclined surface ring is in fit with the inclined surface of the first conical block. A first sealing gasket 2035 is sleeved on the inclined surface of the first conical block. Under normal conditions, the third spring 2034 is in a compressed state, the first inclined surface ring is in close fit with the inclined surface of the first conical block, and the connecting sleeve 203 is in a sealed state. Pushing one end of the first moving member 2033 to separate the first inclined surface ring from the inclined surface of the first conical block can release the sealed state of the connecting sleeve 203.

[0044] As Figure 8As shown, the connector 404 includes a second housing 4041, a second fixing frame 4042, a second moving member 4043, and a fourth spring 4044. The second housing 4041 is fixedly installed on the bottle mouth valve 403. The second fixing frame 4042 is fixedly installed at the top inside the second housing 4041. The second moving member 4043 is slidably installed on the second fixing frame 4042. A second tapered block is fixedly installed in the middle of the second moving member 4043. The fourth spring 4044 is sleeved on the second moving member 4043, and the fourth spring 4044 is arranged between the second fixing frame 4042 and the second tapered block. A second inclined plane ring is fixedly installed on the inner wall of the second housing 4041, and the second inclined plane ring is in fit with the inclined plane of the second tapered block. A second sealing gasket 4045 is sleeved on the inclined plane of the second tapered block. Under normal conditions, the fourth spring 4044 is in a compressed state, the second inclined plane ring is in close fit with the inclined plane of the second tapered block, and the connector 404 is in a sealed state. Pushing one end of the second moving member 4043 to separate the second inclined plane ring from the inclined plane of the second tapered block can release the sealed state of the connector 404.

[0045] One end of the first housing 2031 is provided with a connection groove 2036. The diameter of the connection groove 2036 is the same as the diameter of one end of the second housing 4041. A sealing ring 2037 is embedded and installed on the inner wall of the connection groove 2036. Inserting one end of the connector 404 into the connection groove 2036, one end of the first moving member 2033 and one end of the second moving member 4043 push each other, so that both the connector 404 and the connection sleeve 203 are in a sealed state. The connector 404 is communicated with the connection sleeve 203, and the sealing ring 2037 is in close fit with the outer wall of the connector 404, ensuring the sealing performance at the connection between the connector 404 and the connection sleeve 203.

[0046] Working principle:

[0047] Initially, the lifting seat 103 is in a locked state. Place the hydrogen storage bottle 4 on the carrier plate 109. The hydrogen storage bottle 4 presses down the carrier plate 109, and the bottom of the bottle body 401 is embedded in the limit groove to limit the hydrogen storage bottle 4. The carrier plate 109 moves downward in the limit groove and releases the locked state of the lifting seat 103. The lifting seat 103 moves upward under the action of the damping spring 105, pushing the hydrogen storage bottle 4 to move upward. The upper end surface of the bottle body 401 contacts and abuts against the clamping frame 202 to clamp and fix the hydrogen storage bottle 4. The connector 404 is inserted into the connection sleeve 203 to communicate the bottle body 401 with the hydrogen filling assembly;

[0048] Hydrogen is filled into the bottle body 401 through the hydrogen filling assembly. The generated heat is transferred to the heat sink 407 through the heat conduction partition 406 and the heat conduction rod 408. After the filling is completed, the hydrogen filling assembly stops filling. The hydrogen storage bottle 4 is stored on the lifting mechanism 1 and moves and transports accordingly;

[0049] When using the hydrogen storage cylinder 4, push the lifting seat 103 downward to re-lock it. The cylinder body 401 moves downward with the lifting seat 103 and disengages from the clamping frame 202. The connecting head 404 disengages from the connecting sleeve 203 and is in a sealed state. Then the hydrogen storage cylinder 4 can be taken out for normal use. After taking out the hydrogen storage cylinder 4, the carrier plate 109 resets under the action of the first spring. After the use of the hydrogen storage cylinder 4 is completed, the above operations can be repeated for storage and inflation.

[0050] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A hydrogen storage device based on a hydrogen storage alloy, comprising a plurality of hydrogen storage bottles. The hydrogen storage bottles include a bottle body, a filter, a bottle mouth valve and a gas guide pipe. The bottle body is filled with a hydrogen storage alloy. The bottle mouth valve is fixedly installed at the top of the bottle body. The bottle mouth valve, the filter and the gas guide pipe are fixedly connected in sequence from top to bottom. It is characterized in that, It further includes a lifting mechanism and a clamping mechanism. The lifting mechanism includes a base. A plurality of universal wheels are fixedly installed at the lower end of the base. A plurality of lifting grooves are provided at the upper end of the base. A lifting component is installed in the lifting groove. The lifting component includes a lifting seat, a damping spring, a carrier plate and a first spring. The lifting seat is slidably installed in the lifting groove. The lower end of the damping spring is fixedly connected to the lower end of the lifting groove. The upper end of the damping spring is fixedly connected to the lower end of the lifting seat. A limiting groove is provided at the upper end of the lifting seat. The carrier plate is slidably installed in the limiting groove. The lower end of the first spring is fixedly connected to the lower end of the limiting groove. The upper end of the first spring is fixedly connected to the lower end of the carrier plate. When the lifting seat moves to the lowest position, the base will lock it. The process of the carrier plate moving down in the limiting groove can release the locked state of the lifting seat; The clamping mechanism includes a top plate, a plurality of clamping frames, a plurality of connecting sleeves and a hydrogen charging component. The top plate is arranged above the base. A plurality of columns are fixedly installed between the top plate and the base. The plurality of clamping frames, the plurality of connecting sleeves and the hydrogen charging component are all fixedly installed on the top plate. The plurality of connecting sleeves are all communicated with the hydrogen charging component. Each hydrogen storage bottle is arranged between the corresponding carrier plate and the corresponding clamping frame. The hydrogen storage bottle includes a bottle body. A plurality of heat conducting partitions are fixedly installed inside the bottle body. A plurality of heat dissipation fins are fixedly installed on the outer wall of the hydrogen storage bottle. A heat conducting rod is fixedly installed on the hydrogen storage bottle. One end of the heat conducting rod is fixedly connected to the plurality of heat conducting partitions. The other end of the heat conducting rod is fixedly connected to the plurality of heat dissipation fins. A connecting head is fixedly installed at the top of the hydrogen storage bottle. The connecting head is communicated with the bottle mouth valve. When one end of the connecting head is inserted into one end of the connecting sleeve, the two are communicated. When the connecting head is separated from the connecting sleeve, both of them are in a sealed state; A vertical plate is fixedly installed in the lifting groove. A first through hole is provided at the top of the vertical plate. First blocks are slidably installed on both sides of the first through hole. The upper end surface of the first block is inclined. A second spring is arranged in the first through hole. The two ends of the second spring are respectively fixedly connected to the two first blocks. A convex post is fixedly installed in the limiting groove. A vertical plate groove is provided at the lower end of the convex post. Second through holes are provided on both sides of the convex post; A second block is slidably installed in the second through hole. The upper end surface of the second block is inclined. A convex post groove is provided at the lower end of the carrier plate. Flipping plates are installed on both sides of the convex post groove through spring hinges.

2. The hydrogen storage device based on a hydrogen storage alloy hydride according to claim 1, wherein, A pedal is fixedly installed at the top of the lifting seat. A plurality of pedal grooves are provided at the upper end of the base. Each pedal is arranged above the corresponding pedal groove.

3. The hydrogen storage device based on a hydrogen storage alloy hydride according to claim 1, characterized in that, The clamping frame includes an arc-shaped connecting rod and a plurality of vertical rods. The plurality of vertical rods are fixedly installed at the lower end of the top plate. The arc-shaped connecting rod is fixedly connected to the plurality of vertical rods. The shapes of the lower end surfaces of the plurality of vertical rods are all matched with the shape of the upper end surface of the bottle body.

4. A hydrogen storage device based on a hydrogen storage alloy hydride according to claim 1, characterized in that, The hydrogen charging assembly includes a plurality of safety valves, connecting pipelines, a pressure reducing valve, and a charging pipeline. The pressure reducing valve is fixedly installed at the upper end of the top plate. One end of the charging pipeline is communicated with the air inlet end of the pressure reducing valve, and the other end of the charging pipeline is connected to the hydrogen-using equipment. The connecting pipeline is communicated with the air outlet end of the pressure reducing valve. The plurality of safety valves are all communicated with the connecting pipeline, and each of the safety valves is respectively communicated with a corresponding connecting sleeve.

5. A hydrogen storage device based on a hydrogen storage alloy hydride according to claim 1, characterized in that, The plurality of heat conducting partition plates are arranged in parallel at equal intervals, and a plurality of material passing holes are provided on the heat conducting partition plates.

6. The hydrogen storage device based on a hydrogen storage alloy hydride according to claim 1, characterized in that, The connecting sleeve includes a first outer shell, a first fixing frame, a first moving member, and a third spring. The first outer shell is fixedly installed on the top plate. The first fixing frame is fixedly installed at the top inside the first outer shell. The first moving member is slidably installed on the first fixing frame. A first conical block is fixedly installed in the middle of the first moving member. The third spring is sleeved on the first moving member, and the third spring is arranged between the first fixing frame and the first conical block. A first inclined surface ring is fixedly installed on the inner wall of the first outer shell. The first inclined surface ring is in contact with the inclined surface of the first conical block. A first sealing gasket is sleeved on the inclined surface of the first conical block.

7. A hydrogen storage device based on a hydrogen storage alloy hydride according to claim 6, characterized in that, The connector includes a second outer shell, a second fixing frame, a second moving member, and a fourth spring. The second outer shell is fixedly installed on the bottle mouth valve. The second fixing frame is fixedly installed at the top inside the second outer shell. The second moving member is slidably installed on the second fixing frame. A second conical block is fixedly installed in the middle of the second moving member. The fourth spring is sleeved on the second moving member, and the fourth spring is arranged between the second fixing frame and the second conical block. A second inclined surface ring is fixedly installed on the inner wall of the second outer shell. The second inclined surface ring is in contact with the inclined surface of the second conical block. A second sealing gasket is sleeved on the inclined surface of the second conical block.

8. A hydrogen storage device based on a hydrogen storage alloy hydride according to claim 7, characterized in that, One end of the first outer shell is provided with a connecting groove. The diameter of the connecting groove is the same as the diameter of one end of the second outer shell. A sealing ring is embedded in the inner wall of the connecting groove.

9. A method for hydrogen storage using a hydrogen storage device based on a hydrogen storage alloy as described in any one of claims 1-8, characterized in that, It includes the following steps: Initially, the lifting seat is in a locked state. Place the hydrogen storage bottle on the carrier plate. The hydrogen storage bottle presses down the carrier plate, and the bottom of the bottle body is embedded in the limit groove to limit the hydrogen storage bottle. The carrier plate moves downward in the limit groove and releases the locked state of the lifting seat. The lifting seat moves upward under the action of the damping spring, pushing the hydrogen storage bottle upward. The upper end surface of the bottle body contacts and abuts against the clamping frame to clamp and fix the hydrogen storage bottle. The connector is inserted into the connecting sleeve to communicate the bottle body with the hydrogen charging assembly. Hydrogen is charged into the bottle body through the hydrogen charging assembly. The generated heat is transferred to the heat sink through the heat conducting partition plates and heat conducting rods. After the charging is completed, the hydrogen charging assembly stops charging. The hydrogen storage bottle is stored on the lifting mechanism and moves and is transported accordingly. When using the hydrogen storage bottle, push the lifting seat downward to lock it again. The bottle body moves downward with the lifting seat and disengages from the clamping frame. The connector disengages from the connecting sleeve and is in a sealed state. The hydrogen storage bottle can be taken out for normal use. After taking out the hydrogen storage bottle, the carrier plate resets under the action of the first spring. After the hydrogen storage bottle is used up, repeat the above operations to store and charge it.

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