Solid hydrogen storage tank

Abstract

The utility model provides a solid state hydrogen storage tank relates to solid state hydrogen storage technical field, the solid state hydrogen storage tank includes: an outer tank body and an inner tank body, the inner tank body is sleeved outside the outer tank body, the head of the inner tank body extends out of the outer tank body, a heat exchange interlayer is formed between the inner wall of the outer tank body and the outer wall of the inner tank body, and the heat exchange interlayer is located in the outer tank body. A heat exchange interlayer is arranged in the outer tank body, a heat exchange medium circularly flows in the heat exchange interlayer, a sealing piece is detachably mounted on the head of the inner tank body, a hydrogen storage space is formed in the inner tank body, a hydrogen storage alloy is arranged in the hydrogen storage space, a first chuck is fixedly connected to the head of the outer tank body, a second chuck is fixedly connected to the outer wall of the inner tank body, and the first chuck is fixedly connected to the head of the outer tank body. The chuck I and the chuck II are oppositely arranged; and the hydrogen guide mechanism is mounted in the inner tank body through the sealing element. According to the solid hydrogen storage tank provided by the utility model, the hydrogen storage alloy is convenient to replace, quick disassembly and assembly can be realized, the sealing performance of the heat exchange interlayer can be considered, and the structure is easy to maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of solid hydrogen storage, and particularly to a solid hydrogen storage tank. Background Art

[0002] The solid hydrogen storage device is made by utilizing the characteristic that the hydrogen storage material reversibly absorbs / releases hydrogen under certain temperature and pressure conditions.

[0003] In the current solid hydrogen storage device, a heat exchange tube group is arranged inside to provide the temperature condition for the reaction, which is not convenient for the relevant maintenance of heat exchange. Of course, there are also solid hydrogen storage devices with detachable heat exchange components, but their sealing performance is poor. Moreover, the current solid hydrogen storage device stores the hydrogen storage material by setting a fixed area, which is also not convenient for replacement. Summary of the Utility Model

[0004] The problem to be solved by the utility model is that it is impossible to balance the sealing performance of the heat exchange component and heat exchange maintenance, and it is not convenient to replace the hydrogen storage material.

[0005] To solve the above problems, the utility model provides a solid hydrogen storage tank, including:

[0006] An outer tank body and an inner tank body, the outer tank body is sleeved outside the inner tank body and the head of the inner tank body extends out of the outer tank body. A heat exchange interlayer is formed between the inner wall of the outer tank body and the outer wall of the inner tank body, and the heat exchange interlayer is configured such that a heat exchange medium circulates therein. A seal is detachably installed at the head of the inner tank body. A hydrogen storage space is provided inside the inner tank body, and a hydrogen storage alloy is provided in the hydrogen storage space. A first chuck is fixedly connected to the head of the outer tank body, and a second chuck is fixedly connected to the outer wall of the inner tank body. The first chuck and the second chuck are arranged opposite to each other;

[0007] A hydrogen guiding mechanism is installed on the inner tank body through the seal, and the hydrogen guiding mechanism is used to introduce or export hydrogen from the hydrogen storage space;

[0008] A sealing mechanism is detachably arranged between the first chuck and the second chuck. The sealing mechanism includes a clamp assembly and an elastic sealing member. The elastic sealing member is arranged at the gap between the first chuck and the second chuck, and the clamp assembly is used to sleeve around the first chuck and the second chuck and clamp the first chuck and the second chuck.

[0009] Optionally, a sealing groove is provided between the opposite end faces of the first chuck and the second chuck, the elastic sealing member is embedded in the sealing groove, and the width of the elastic sealing member before being compressed is greater than the width of the sealing groove.

[0010] Optionally, the clamp assembly includes a clamp member and a threaded fastener. The clamp member includes a first hoop body and a second hoop body. The clamp member is sleeved on the peripheries of the first chuck and the second chuck. The inner shape of the clamp member is adapted to the shapes of the peripheries of the first chuck and the second chuck. One end of the first hoop body is hinged to one end of the second hoop body. Connection lugs are respectively provided at the other ends of the first hoop body and the second hoop body. The two connection lugs are connected by the threaded fastener.

[0011] Optionally, the threaded fastener includes a fastening nut and a connecting bolt. Notches are respectively provided on the two connection lugs. One end of the connecting bolt is arranged in the notch of one connection lug and is hinged to the connection lug, and the other end passes through the notch of the other connection lug and is in threaded connection with the fastening nut. The fastening nut abuts against the outer end face of the other connection lug.

[0012] Optionally, the threaded fastener includes a fastening nut and a connecting bolt. The connecting bolt penetrates through the two connection lugs, and at least one end of the connecting bolt is connected with the fastening nut.

[0013] Optionally, the seal includes a first sealing disc. The first sealing disc is installed on the end face of the head of the inner tank body through a threaded member.

[0014] Optionally, the seal includes a first sealing disc. A second sealing disc is further provided on the head of the inner tank body. The first sealing disc and the second sealing disc are mating flange discs. The first sealing disc is hermetically connected to the second sealing disc through flange bolts and flange nuts.

[0015] Optionally, the hydrogen guiding mechanism includes a hydrogen guiding pipe and a connector. One end of the hydrogen guiding pipe is fixed to the inner end face of the first sealing disc, and the other end extends into the hydrogen storage space. The connector is fixed to the outer end face of the first sealing disc and communicates with one end of the hydrogen guiding pipe. The connector is used for externally connecting a hydrogen supply device or a hydrogen using device.

[0016] Optionally, an internal thread or an external thread is provided at one end of the connector away from the hydrogen guiding pipe. The internal thread or the external thread is used for externally connecting a hydrogen supply pipe or a hydrogen return pipe.

[0017] Optionally, a medium inlet member and a medium outlet member are provided on the outer wall of the outer tank body. Both the medium inlet member and the medium outlet member communicate with the heat exchange interlayer. The medium inlet member is used for introducing the heat exchange medium, and the medium outlet member is used for discharging the heat exchange medium.

[0018] The solid hydrogen storage tank provided by the present utility model has an outer tank sleeved outside an inner tank, and a heat exchange interlayer for circulating a heat exchange medium is formed therebetween. The heat exchange interlayer constitutes a heat conduction environment for the hydrogen storage space inside the inner tank. After hydrogen is introduced into the hydrogen storage space based on a hydrogen guiding mechanism and in cooperation with the heat conduction environment, the hydrogen charging process can be achieved. By changing the temperature of the heat conduction environment, the hydrogen discharging process can be achieved. The hydrogen charging process and the hydrogen discharging process can be conveniently realized without the hydrogen storage space and the heat exchange interlayer being in direct contact. Moreover, due to the detachable setting of the seal at the head of the inner tank and the installation of a hydrogen guiding mechanism on the seal, after the seal at the head of the inner tank is removed, the hydrogen guiding mechanism is also removed. Therefore, whether it is to increase, decrease, or replace the hydrogen storage alloy in the hydrogen storage space, or to maintain the hydrogen storage space, or to maintain the hydrogen guiding mechanism, etc., all can be directly and conveniently operated, and the hydrogen guiding mechanism can be replaced by replacing the seal. Further, due to the nested setting of the outer tank and the inner tank, and the use of a sealing mechanism to seal and clamp the first chuck and the second chuck, the outer tank can be fixedly arranged around the inner tank and a heat exchange interlayer is formed therebetween. The cooperative setting of the clamp assembly and the elastic sealing member in the sealing mechanism enables the clamp assembly to clamp the peripheries of the first chuck and the second chuck. This can not only firmly sleeve the outer tank around the inner tank, but also, under the action of the clamping force, the relative gap between the first chuck and the second chuck can be reduced and completely filled by the deformed elastic sealing member. Therefore, the sealing degree of the heat exchange interlayer can also be improved, and the sealing mechanism is also detachable. Therefore, after the hydrogen charging process or the hydrogen discharging process is completed, the outer tank and the inner tank can be separated, which is convenient for maintaining the heat exchange interlayer. Description of the Drawings

[0019] Figure 1 Shows the three-dimensional view of the solid hydrogen storage tank in the embodiment of the present utility model Figure 1 ;

[0020] Figure 2 Shows the cross-sectional view of the solid hydrogen storage tank in the embodiment of the present utility model;

[0021] Figure 3 Shows the cross-sectional view of the outer tank in the embodiment of the present utility model;

[0022] Figure 4 Shows the cross-sectional view of the inner tank in the embodiment of the present utility model;

[0023] Figure 5 Shows the connection schematic diagram of the seal and the gas guide pipe in the embodiment of the present utility model;

[0024] Figure 6 Shows the three-dimensional view of the solid hydrogen storage tank in the embodiment of the present utility model Figure 2 ;

[0025] Figure 7Shows a schematic diagram of the cooperation between the fastening nut and the connecting bolt in another embodiment of the present utility model;

[0026] Figure 8 Shows the front view of the solid hydrogen storage tank without a fastening nut in the embodiment of the present utility model.

[0027] Explanation of reference numerals:

[0028] 1. Outer tank body; 2. Inner tank body; 3. Medium inlet part; 4. Medium outlet part; 5. First chuck; 6. Second chuck; 7. Second sealing disc; 8. Gas guide pipe; 9. First sealing disc; 10. Connector; 11. Sealing groove; 12. Elastic plugging member; 13. Clamping member; 131. First hoop body; 132. Second hoop body; 14. Fastening nut; 15. Connecting bolt; 16. Connecting ear. Detailed implementation manners

[0029] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be given with reference to the accompanying drawings.

[0030] The Z-axis in the drawings represents the vertical direction, that is, the up and down position, and the positive direction of the Z-axis represents the upper side, and the negative direction of the Z-axis represents the lower side; the X-axis in the drawings represents the horizontal direction and is specified as the front and back position, and the positive direction of the X-axis represents the front side, and the negative direction of the X-axis represents the back side; the Y-axis in the drawings represents the left and right position, and the positive direction of the Y-axis represents the left side, and the negative direction of the Y-axis represents the right side. At the same time, it should be noted that the above-mentioned meanings represented by the Z-axis, Y-axis and X-axis are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present invention.

[0031] In the description of this specification, the descriptions referring to terms such as "embodiment", "one embodiment" and "one implementation manner" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or implementation manner are included in at least one embodiment or implementation manner of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or implementation manner. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or implementation manners in a suitable manner.

[0032] Refer to Figures 1-6As shown in the figure, an embodiment of the present utility model provides a solid-state hydrogen storage tank, which includes an outer tank body 1 and an inner tank body 2. The outer tank body 1 is sleeved outside the inner tank body 2, and the head of the inner tank body 2 extends out of the outer tank body 1. A heat exchange interlayer is formed between the inner wall of the outer tank body 1 and the outer wall of the inner tank body 2, and the heat exchange interlayer is configured such that a heat exchange medium circulates therein. A seal is detachably installed at the head of the inner tank body 2. A hydrogen storage space is provided inside the inner tank body 2, and a hydrogen storage alloy is provided in the hydrogen storage space. A first chuck 5 is fixedly connected to the head of the outer tank body 1, and a second chuck 6 is fixedly connected to the outer wall of the inner tank body 2. The first chuck 5 and the second chuck 6 are arranged opposite to each other and form a periphery.

[0033] Since both the outer tank body 1 and the inner tank body 2 are tank bodies, their heads are both open, and their tails are both sealed (which can be sealed by a head).

[0034] A hydrogen guiding mechanism is installed on the inner tank body 2 through the seal, and the hydrogen guiding mechanism is used to introduce or discharge hydrogen into or out of the hydrogen storage space. Exemplarily, when the pressure inside the inner tank body 2 is relatively high, the seal can be installed in the form of a flange to ensure stable operation.

[0035] A sealing mechanism is detachably arranged between the first chuck 5 and the second chuck 6. The sealing mechanism includes a clamp assembly and an elastic sealing member 12. The elastic sealing member 12 is arranged at the gap between the first chuck 5 and the second chuck 6, and the clamp assembly is used to sleeved on the periphery of the first chuck 5 and the second chuck 6 and clamp the first chuck 5 and the second chuck 6. The pressure of the heat exchange medium in the heat exchange interlayer between the outer tank body 1 and the inner tank body 2 is relatively low, and the seal can be completed by the cooperation of the clamp assembly and the elastic sealing member 12.

[0036] Specifically, the hydrogen storage alloy includes titanium, manganese-based alloy materials, or Li-Mg-N-H materials, etc. The hydrogen storage alloy can be evenly distributed in the hydrogen storage space. The hydrogen storage alloy can absorb hydrogen under a certain temperature (relatively low temperature) and a certain pressure (generally, at room temperature, the hydrogen storage alloy reacts with hydrogen at room temperature to form metal hydrides, which is the hydrogen charging process). Under a certain temperature (relatively high temperature) and a certain pressure, the hydrogen can be released (the hydrogen inside the metal hydride can be released under the action of "external forces" such as temperature, which is the hydrogen discharging process). And the present invention mainly realizes the hydrogen charging process and the hydrogen discharging process by changing the temperature. By making the hydrogen storage space and the heat exchange interlayer not directly contact, but by changing the heat exchange temperature of the heat exchange medium, the heat conduction effect of the heat exchange interlayer on the hydrogen storage space is realized, and then the conversion of the hydrogen charging process and the hydrogen discharging process in the hydrogen storage space is realized. The heat exchange medium in the heat exchange interlayer can be in an internal circulation state (the temperature is sufficient for the reaction) or an external circulation state (to promote the reaction), and the latter can be realized by establishing a circulation loop with the outside, etc.

[0037] When this embodiment is applied in practice, the outer tank 1 is sleeved outside the inner tank 2, and a heat exchange interlayer for circulating the heat exchange medium is formed between the two. The heat exchange interlayer constitutes a heat conduction environment for the hydrogen storage space inside the inner tank 2. After hydrogen is introduced into the hydrogen storage space based on the hydrogen guiding mechanism and combined with the heat conduction environment, the hydrogen charging process can be realized. By changing the temperature of the heat conduction environment, the hydrogen discharging process can be realized. The hydrogen charging process and the hydrogen discharging process can be conveniently realized without direct contact between the hydrogen storage space and the heat exchange interlayer. And through the detachable setting of the seal on the head of the inner tank 2 and the installation of the hydrogen guiding mechanism on the seal, after the seal on the head of the inner tank 2 is disassembled, the hydrogen guiding mechanism is also removed. Therefore, whether it is to increase, decrease or replace the hydrogen storage alloy in the hydrogen storage space, or to maintain the hydrogen storage space, or to maintain the hydrogen guiding mechanism, etc., all can be directly and conveniently operated, and the hydrogen guiding mechanism can be replaced by replacing the seal; further, due to the nested setting of the outer tank 1 and the inner tank 2, and the sealing and clamping of the chuck one 5 and the chuck two 6 are realized through the sealing mechanism, the outer tank 1 can be fixedly arranged outside the inner tank 2 and a heat exchange interlayer is formed between the two. The cooperation setting of the clamp assembly and the elastic sealing member 12 in the sealing mechanism enables the clamp assembly to clamp the peripheries of the chuck one 5 and the chuck two 6. It can not only firmly sleeve the outer tank 1 outside the inner tank 2, but also, under the action of the clamping force, the relative gap between the chuck one 5 and the chuck two 6 can be reduced and the deformed elastic sealing member 12 can completely fill it. Therefore, the sealing degree of the heat exchange interlayer can also be improved, and the sealing mechanism is also detachable. Therefore, after the hydrogen charging process or the hydrogen discharging process is completed, the outer tank 1 and the inner tank 2 can be separated, and then it is convenient to maintain the heat exchange interlayer.

[0038] As Figure 2 shown, as an alternative embodiment of the present invention, a sealing groove 11 is provided between the opposite end faces of the chuck one 5 and the chuck two 6, and the elastic sealing member 12 is embedded in the sealing groove 11. The width of the elastic sealing member 12 before being compressed is greater than the width of the sealing groove 11.

[0039] Specifically, the sealing groove 11 is arranged along the opposite end faces of the chuck one 5 and the chuck two 6 and is provided in a circle along the periphery of the inner tank 2. In this way, the sealing groove 11 forms an annular groove, so the elastic sealing member 12 can also be annular and form an annular seal for the sealing groove 11. When the width of the elastic sealing member 12 is greater than the width of the sealing groove 11, with the clamping of the clamp assembly, the elastic sealing member 12 is deformed and firmly embedded in the sealing groove 11. The elastic sealing member 12 can be made of silica gel material.

[0040] In practical application of this embodiment, the cooperation between the sealing groove 11 and the elastic sealing member 12 can achieve the sealing of the contact end faces of the first chuck 5 and the second chuck 6. And in combination with the clamping action of the clamp assembly and the size setting of the elastic sealing member 12, the elastic sealing member 12 is deformed and tightly embedded in the sealing groove 11, and can extend to the outside of the contact end face. It presents a "convex shape" in Figure 2 to improve the sealing performance of the heat exchange interlayer.

[0041] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and 6 shown, as an alternative embodiment of the present invention, the clamp assembly includes a clamp member 13 and a threaded fastener. The clamp member 13 includes a first hoop body 131 and a second hoop body 132. The clamp member 13 is sleeved around the first chuck 5 and the second chuck 6. The inner shape of the clamp member 13 is adapted to the outer shapes of the first chuck 5 and the second chuck 6. One end of the first hoop body 131 and one end of the second hoop body 132 are hinged. Connection ears 16 are respectively provided at the other ends of the first hoop body 131 and the second hoop body 132. The two connection ears 16 are connected by the threaded fastener.

[0042] Specifically, when the clamp assembly includes the first hoop body 131 and the second hoop body 132, there is no obvious difference between them, but they are symmetric about the left and right. Their cross-sections can be in an inverted "U" shape after installation. The opening of the inverted "U" shape can be closed and clamped around the first chuck 5 and the second chuck 6. Refer to Figure 3 and Figure 4, the cross-sections of the first chuck 5 and the second chuck 6 are trapezoidal, and the width becomes larger closer to the bottom. More specifically, the opposite end faces (inner end faces) of the two are perpendicular to the surfaces of the outer tank 1 and the inner tank 2, and the end faces (outer end faces) away from each other are inclined. The purpose of this setting is as follows: the opposite end faces are set vertically, so that the chucks 5 and 6 can fit better; the end faces away from each other (outward) are inclined. After the clamping member 13 is buckled on the chucks 5 and 6, as the threaded fasteners are continuously tightened, the contact area between the first hoop body 131 and the second hoop body 132 and the perimeters of the first chuck 5 and the second chuck 6 gradually becomes larger and tends to tighten. It should be noted that the chucks 5 and 6 are both arranged annularly around the outer tank 1 and the inner tank 2, and the height from the top of the second chuck 6 to the surface of the inner tank 2 is greater than the height from the top of the first chuck 5 to the surface of the outer tank 1. In this way, after the outer tank 1 is sleeved outside the inner tank 2, the inner end faces of the chucks 5 and 6 are fitted, and their tops are flush, which is convenient for sleeving the clamping member 13 and beneficial to improving the sealing performance. Reinforcing ribs extending outward can be provided at the bottom edges of the first chuck 5 and the second chuck 6, which can increase the fixing (such as realized in the form of welding) contact area and improve the fixing strength between the first chuck 5 and the outer tank 1, as well as the fixing strength between the second chuck 6 and the outer tank 1.

[0043] Through the action of the threaded fasteners, and continuously tightening the two connecting ears 16, the gap between the connecting ears 16 continuously becomes smaller. Along with the continuously increasing tightening force provided by the first hoop body 131 and the second hoop body 132, the contact area between the first hoop body 131 and the second hoop body 132 and the perimeters of the first chuck 5 and the second chuck 6 gradually becomes larger and tends to tighten. Eventually, the outer tank 1 and the inner tank 2 can be firmly installed in the sleeved state, and during disassembly, the reverse operation can be carried out.

[0044] During assembly, the first hoop body 131 and the second hoop body 132 are opened, and the opened area is aligned with the perimeters of the first chuck 5 and the second chuck 6 to initially clamp the perimeters of the first chuck 5 and the second chuck 6. Then, through the tightening of the threaded fasteners, the tightening of the first hoop body 131 and the second hoop body 132 can be completed. Under the action of the threaded fasteners, the relative gap between the first chuck 5 and the second chuck 6 can be reduced and completely filled by the deformed elastic sealing member 12, which can improve the sealing degree of the heat exchange interlayer and finally realize the fixation of the first chuck 5 and the second chuck 6. The installation is very convenient. During disassembly, loosening the threaded fasteners can complete the opening of the first hoop body 131 and the second hoop body 132, and then the clamping member 13 can be disengaged from the perimeters of the first chuck 5 and the second chuck 6 to release the fixation of the first chuck 5 and the second chuck 6. Then, the outer tank 1 can be disengaged from the inner tank 2 backward. It can be seen that the disassembly and assembly are very convenient.

[0045] In practical application of this embodiment, a clamp member 13 whose inner shape is adapted to the outer shapes of the first chuck 5 and the second chuck 6, in cooperation with threaded fasteners, realizes the tightening of the connecting ears 16, and further realizes that the first hoop body 131 and the second hoop body 132 jointly "hug" the outer perimeters of the first chuck 5 and the second chuck 6 tightly to achieve clamping. With the elastic sealing member 12 arranged in the sealing groove 11, not only can the outer tank body 1 be firmly sleeved around the inner tank body 2, but also the elastic sealing member 12 deforms under the action of the clamping force, and the gap between the first chuck 5 and the second chuck 6 decreases and is completely filled by the elastic sealing member 12. Therefore, the sealing performance of the heat exchange interlayer can also be ensured.

[0046] As Figure 1 , Figure 6 and Figure 8 shown, as an alternative embodiment of the present utility model, the threaded fasteners include a fastening nut 14 and a connecting bolt 15. Each of the two connecting ears 16 is provided with a notch. One end of the connecting bolt 15 is arranged in the notch of one connecting ear 16 and is hinged to the connecting ear 16, and the other end passes through the notch of the other connecting ear 16 and is threadedly connected to the fastening nut 14. The fastening nut 14 abuts against the outer end face of the other connecting ear 16.

[0047] Specifically, before fastening, the outer perimeters of the first chuck 5 and the second chuck 6 are sleeved by the clamp member 13, and the connecting bolt 15 is rotated so that the free end of the connecting bolt 15 also enters the notch and abuts against the top wall of the notch. The fastening nut 14 is slowly screwed onto the free end of the connecting bolt 15 until the fastening nut 14 abuts against the outer end face of the connecting ear 16 with a certain pre-tightening force. The disassembly process is the opposite. The fastening nut 14 can be a wing nut, making the rotation of the fastening nut 14 more convenient when cooperating with the connecting bolt 15. Of course, if the fastening nut 14 is a general nut, such as a hexagonal nut, it is also possible. A gasket can be arranged at the contact position between the fastening nut 14 and the outer end face of the connecting ear 16 to improve the fastening degree.

[0048] During assembly, the first hoop body 131 and the second hoop body 132 are opened, and the opened area is aligned with the peripheries of the first chuck 5 and the second chuck 6 to initially hold the peripheries of the first chuck 5 and the second chuck 6. Then, the connecting bolt 15 is rotated so that the free end of the connecting bolt 15 also enters the notch and abuts against the top wall of the notch. The fastening nut 14 is slowly screwed onto the free end of the connecting bolt 15 until the fastening nut 14 abuts against the outer end face of the connecting ear 16 with a certain pre-tightening force, thus completing the tightening of the first hoop body 131 and the second hoop body 132 and achieving the fixation of the first chuck 5 and the second chuck 6. It can be seen that under the action of the threaded fasteners, the relative gap between the first chuck 5 and the second chuck 6 can be reduced and completely filled by the deformed elastic sealing member 12, which can improve the sealing degree of the heat exchange interlayer and is very convenient for installation. During disassembly, first, the fastening nut 14 is slowly unscrewed from the free end of the connecting bolt 15, and then the free end of the connecting bolt 15 is disengaged from the notch, which is convenient for opening the first hoop body 131 and the second hoop body 132. Then, the clamp 13 is disengaged from the peripheries of the first chuck 5 and the second chuck 6 to release the fixation of the first chuck 5 and the second chuck 6. Then, the outer tank body 1 can be detached from the inner tank body 2 backward. It can be seen from the above that convenient disassembly and assembly can be achieved.

[0049] In practical application of this embodiment, through the hinge connection of the connecting bolt 15 and the design of the notch, while facilitating the fastening, disassembly and assembly of the clamp 13, the connecting bolt 15 is always hung on the clamp 13, and the fastening nut 14 can be screwed onto the connecting bolt 15, making it difficult for the threaded fasteners to be lost and more convenient to use.

[0050] As Figure 7 shown, as a parallel embodiment of the previous embodiment, the threaded fasteners include a fastening nut 14 and a connecting bolt 15. The connecting bolt 15 passes through the two connecting ears 16, and at least one end of the connecting bolt 15 is connected with the fastening nut 14.

[0051] Specifically, a perforation is formed between the two connecting ears 16. The two connecting ears 16 are connected by the connecting bolt 15, and the two connecting ears 16 are fixedly clamped by the fastening nut 14. The connecting bolt 15 can be a single-headed bolt with threads or a double-headed bolt with threads.

[0052] During assembly, the first hoop body 131 and the second hoop body 132 are opened, and the opened area is aligned with the peripheries of the first chuck 5 and the second chuck 6 to initially hold the peripheries of the first chuck 5 and the second chuck 6. Then, the two connecting lugs 16 are connected through the connecting bolts 15, and the two connecting lugs 16 are fixed and clamped through the fastening nuts 14 until the fastening nuts 14 abut against the outer end faces of the connecting lugs 16 with a certain pre-tightening force, then the tightening of the first hoop body 131 and the second hoop body 132 can be completed, and the fixation of the first chuck 5 and the second chuck 6 can be achieved. It can be seen that under the action of the threaded fasteners, the relative gap between the first chuck 5 and the second chuck 6 can be reduced and completely filled by the deformed elastic sealing member 12, which can improve the sealing degree of the heat exchange interlayer, and the installation is very convenient. During disassembly, the fastening nut 14 is slowly screwed out from the free end of the connecting bolt 15, and the free end of the connecting bolt 15 is disengaged from the notch, then the opening of the first hoop body 131 and the second hoop body 132 can be completed, and then the clamping member 13 is disengaged from the peripheries of the first chuck 5 and the second chuck 6 to release the fixation of the first chuck 5 and the second chuck 6, and then the outer tank body 1 can be disengaged from the inner tank body 2 backward. It can be seen that both installation and disassembly are very convenient, and quick disassembly and assembly can be achieved.

[0053] When this embodiment is actually applied, the method of fastening the connecting lugs 16 to further realize the fastening of the first hoop body 131 and the second hoop body 132 is relatively common, and it can ensure that the connecting bolt 15 can be replaced at any time when it is worn.

[0054] As an alternative embodiment of the present utility model, the sealing member includes a first sealing disc 9, and the first sealing disc 9 is installed on the end face of the head of the inner tank body 2 through a threaded member.

[0055] Specifically, the first sealing disc 9 as the sealing member can be directly installed on the end face of the head of the inner tank body 2 through a threaded member. At this time, corresponding threaded holes are provided on the end face of the head of the inner tank body 2.

[0056] When this embodiment is actually applied, the first sealing disc 9 can be directly installed on the open head of the inner tank body 2 through a threaded member (such as a fastening bolt), and the common disassembly of the first sealing disc 9 and the hydrogen conduction mechanism can also be achieved.

[0057] As Figure 1 and Figure 2 shown, as a preferred embodiment of the previous embodiment, the sealing member includes a first sealing disc 9, and a second sealing disc 7 is further provided on the head of the inner tank body 2. The first sealing disc 9 and the second sealing disc 7 are mutually cooperating flange discs, and the first sealing disc 9 is hermetically connected to the second sealing disc 7 through flange bolts and flange nuts (installed at the positions of the flange holes in Figure 1 and Figure 2 ).

[0058] Specifically, when the sealing disc 1 is set as a flange, a sealing disc 2 can also be provided at the head of the inner tank body 2 for butt - joint. In this way, one end of the sealing disc 2 can be fixed to the end face of the head of the inner tank body 2 by means such as welding. The other end of the sealing disc 2 is connected to the sealing disc 1 in a flange - to - flange manner. This connection is based on the cooperation of the mounting holes arranged in an annular array on the flange and flange bolts, and then fixed by flange nuts. Moreover, the relative positions of the two can be sealed. This connection method can withstand the relatively large pressure inside the inner tank body 2.

[0059] When this embodiment is applied in practice, through the cooperation of the sealing disc 2 and the sealing disc 1, both the sealing disc 2 and the sealing disc 1 can be set as standard parts, making the disassembly of the sealing disc 1 more convenient, the installation more firm, and facilitating the maintenance of the hydrogen storage space inside the inner tank body 2.

[0060] As Figure 2 and Figure 5 shown, as an alternative embodiment of the present utility model, the hydrogen - guiding mechanism includes a hydrogen - guiding pipe 8 and a connector 10. One end of the hydrogen - guiding pipe 8 is fixed to the inner end face of the sealing disc 1, and the other end extends into the hydrogen storage space. The connector 10 is fixed to the outer end face of the sealing disc 1 and is communicated with one end of the hydrogen - guiding pipe 8. The connector 10 is used to externally connect a hydrogen supply device or a hydrogen - using device.

[0061] Specifically, the other end of the connector 10 away from the sealing disc 1 remains in a connected state with the pipeline of the externally - connected hydrogen supply device or hydrogen - using device. Generally, a valve is provided on the corresponding pipeline, or the connector 10 itself can also be provided with a valve to ensure the pressure inside the inner tank body 2. The hydrogen - guiding pipe 8 generally extends to the bottom position of the inner wall of the inner tank body 2.

[0062] When this embodiment is applied in practice, by installing the hydrogen - guiding pipe 8 and the connector 10 on both sides of the sealing disc 1, only the sealing disc 1 needs to be disassembled to complete the disassembly of the hydrogen - guiding mechanism, which is convenient for the replacement, maintenance, cleaning, etc. of the hydrogen - guiding mechanism and the hydrogen storage space inside the inner tank body 2.

[0063] As an alternative embodiment of the present utility model, the end of the connector 10 away from the hydrogen - guiding pipe 8 is provided with an internal thread or an external thread, and the internal thread or external thread is used to externally connect a hydrogen supply pipe or a hydrogen return pipe.

[0064] Specifically, through the thread fit, the connector 10 can be connected to the pipe fittings of the hydrogen supply device (hydrogen source) or hydrogen - using device (a smaller - scale hydrogen storage or hydrogen - using device).

[0065] When this embodiment is applied in practice, the joint 10 is provided with threads, so that its quick connection with the external hydrogen supply pipe or hydrogen return pipe can be realized through thread fitting. Of course, when the joint 10 is a relatively common ferrule joint, the pipe fitting is inserted into the main body of the joint until it reaches a predetermined depth, and then the ferrule is slid onto the outside of the joint, and the ferrule is tightly clamped on the pipe fitting of the hydrogen supply pipe or hydrogen return pipe by screwing.

[0066] As Figure 3 shown, as an alternative embodiment of the present invention, the outer wall of the outer tank body 1 is provided with a medium inlet 3 and a medium outlet 4, both the medium inlet 3 and the medium outlet 4 communicate with the heat exchange interlayer, the medium inlet 3 is used for introducing the heat exchange medium, and the medium outlet 4 is used for discharging the heat exchange medium.

[0067] Specifically, the medium inlet 3 and the medium outlet 4 are respectively communicated with the heat exchange interlayer, and preferably the medium inlet 3 and the medium outlet 4 are arranged at the head and tail of the outer tank body 1, so that the heat exchange medium can fully act on the inner tank body 2, making the heat conduction effect more obvious. The medium inlet 3 and the medium outlet 4 are respectively externally connected to the outlet and inlet of the heat exchange medium supply device, so that hydrogen charging (hydrogen absorption) and hydrogen discharging are carried out at appropriate corresponding temperatures respectively. The heat exchange medium can be water, so that the heat exchange medium flows in from the medium inlet 3, circulates in the heat exchange interlayer, and flows out through the medium outlet 4. Valves can be respectively arranged on the medium inlet 3 and the medium outlet 4, and a temperature sensor can also be arranged in the heat exchange interlayer.

[0068] When this embodiment is applied in practice, the arrangement of the medium inlet 3 and the medium outlet 4 ensures the continuous update of the heat exchange medium in the interlayer, thereby controlling the temperature rise and hydrogen discharge or temperature drop and hydrogen absorption of the hydrogen storage alloy in the outer tank body 1. Due to the existence of the heat exchange interlayer, the relatively high-temperature heat exchange medium does not enter the outer tank body 1 during hydrogen discharge, and the relatively low-temperature heat exchange medium does not enter the outer tank body 1 during hydrogen absorption, ensuring the stable progress of the hydrogen charging process and the hydrogen discharging process.

[0069] The above are only the specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features of the present invention described herein.

[0070] Although the present utility model is disclosed as above, the protection scope of the present utility model is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model, and these changes and modifications will all fall within the protection scope of the present utility model.

Claims

1. A solid-state hydrogen storage tank, characterized in that, Comprising: An outer tank body (1) and an inner tank body (2), the outer tank body (1) is sleeved outside the inner tank body (2) and the head of the inner tank body (2) extends out of the outer tank body (1). A heat exchange interlayer is formed between the inner wall of the outer tank body (1) and the outer wall of the inner tank body (2), and the heat exchange interlayer is configured for a heat exchange medium to circulate therein. A seal is detachably installed at the head of the inner tank body (2). A hydrogen storage space is provided inside the inner tank body (2), and a hydrogen storage alloy is provided in the hydrogen storage space. A first chuck (5) is fixedly connected to the head of the outer tank body (1), and a second chuck (6) is fixedly connected to the outer wall of the inner tank body (2). The first chuck (5) and the second chuck (6) are arranged opposite to each other; A hydrogen guiding mechanism, which is installed on the inner tank body (2) through the seal, and the hydrogen guiding mechanism is used to introduce or export hydrogen into or out of the hydrogen storage space; A sealing mechanism, which is detachably arranged between the first chuck (5) and the second chuck (6). The sealing mechanism includes a clamp assembly and an elastic sealing member (12). The elastic sealing member (12) is arranged at the gap between the first chuck (5) and the second chuck (6). The clamp assembly is sleeved around the first chuck (5) and the second chuck (6) and clamps the first chuck (5) and the second chuck (6).

2. The solid hydrogen storage tank according to claim 1, characterized in that, A sealing groove (11) is provided between the opposite end faces of the first chuck (5) and the second chuck (6). The elastic sealing member (12) is embedded in the sealing groove (11), and the width of the elastic sealing member (12) before being compressed is greater than the width of the sealing groove (11).

3. The solid hydrogen storage tank according to claim 2, wherein The clamp assembly includes a clamp member (13) and a threaded fastener. The clamp member (13) includes a first hoop body (131) and a second hoop body (132). The clamp member (13) is sleeved around the first chuck (5) and the second chuck (6). The inner shape of the clamp member (13) is adapted to the outer shape of the first chuck (5) and the second chuck (6). One end of the first hoop body (131) is hinged to one end of the second hoop body (132). Connection ears (16) are respectively provided at the other ends of the first hoop body (131) and the second hoop body (132). The two connection ears (16) are connected by the threaded fastener.

4. The solid hydrogen storage tank according to claim 3, characterized in that, The threaded fastener includes a fastening nut (14) and a connecting bolt (15). The two connection ears (16) are respectively provided with notches. One end of the connecting bolt (15) is arranged in the notch of one connection ear (16) and is hinged to the connection ear (16), and the other end passes through the notch of the other connection ear (16) and is threadedly connected to the fastening nut (14). The fastening nut (14) abuts against the outer end face of the other connection ear (16).

5. The solid-state hydrogen storage tank according to claim 3, characterized in that, The threaded fastener includes a fastening nut (14) and a connecting bolt (15). The connecting bolt (15) penetrates through the two connection ears (16), and at least one end of the connecting bolt (15) is connected with the fastening nut (14).

6. The solid hydrogen storage tank according to any one of claims 1-5, characterized in that, The seal includes a first sealing disc (9), and the first sealing disc (9) is installed on the end face of the head of the inner tank body (2) through threaded parts.

7. The solid-state hydrogen storage tank according to any one of claims 1-5, characterized in that, The seal includes a first sealing disc (9), and a second sealing disc (7) is further provided at the head of the inner tank body (2). The first sealing disc (9) and the second sealing disc (7) are mating flange plates, and the first sealing disc (9) is hermetically connected to the second sealing disc (7) through flange bolts and flange nuts.

8. The solid hydrogen storage tank according to claim 7, characterized in that The hydrogen guiding mechanism includes a hydrogen guiding pipe (8) and a connector (10). One end of the hydrogen guiding pipe (8) is fixed to the inner end face of the first sealing disc (9), and the other end extends into the hydrogen storage space. The connector (10) is fixed to the outer end face of the first sealing disc (9) and communicates with one end of the hydrogen guiding pipe (8). The connector (10) is used to externally connect a hydrogen supply device or a hydrogen using device.

9. The solid hydrogen storage tank according to claim 8, wherein, The end of the connector (10) away from the hydrogen guiding pipe (8) is provided with an internal thread or an external thread, and the internal thread or the external thread is used to externally connect a hydrogen supply pipe or a hydrogen return pipe.

10. The solid-state hydrogen storage tank according to any one of claims 1-5, characterized in that, A medium inlet piece (3) and a medium outlet piece (4) are provided on the outer wall of the outer tank body (1). Both the medium inlet piece (3) and the medium outlet piece (4) communicate with the heat exchange interlayer. The medium inlet piece (3) is used to introduce the heat exchange medium, and the medium outlet piece (4) is used to export the heat exchange medium.

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