Hydrogen storage equipment capable of adjusting hydrogen release amount

Abstract

The invention discloses hydrogen storage equipment capable of adjusting the hydrogen release amount. The hydrogen storage equipment comprises a plurality of hydrogen storage units, the plurality of connecting pieces are respectively connected between two adjacent hydrogen storage units and are used for conducting or blocking a fluid passage between the two adjacent hydrogen storage units; the pipeline system is communicated with each hydrogen storage unit; and the two end covers are respectively covered on the two hydrogen storage units at the end parts. According to the hydrogen storage device, the fluid channel between every two adjacent hydrogen storage units can be connected or disconnected by rotating the connecting pieces, the pipeline system communicates with each hydrogen storage unit, the corresponding hydrogen storage units communicate with one another by introducing high-temperature fluid into the corresponding hydrogen storage units and adjusting the corresponding connecting pieces, and therefore part of the hydrogen storage units are controlled to release hydrogen, and the hydrogen storage efficiency is improved. Excessive release of hydrogen is prevented.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogen storage, and in particular discloses a hydrogen storage device capable of adjusting the amount of hydrogen released. Background Art

[0002] The hydrogen storage device based on solid-state hydrogen storage materials is an efficient and safe hydrogen storage and release device, which has broad application prospects in the fields of new energy, hydrogen energy, etc. When releasing hydrogen, the existing solid-state hydrogen storage devices usually pass high-temperature fluid into the solid-state hydrogen storage device, heat the solid-state hydrogen storage material by heat transfer, and make the solid-state hydrogen storage material release hydrogen. However, when heating and releasing hydrogen, the existing solid-state hydrogen storage devices usually heat the solid-state hydrogen storage materials in the solid-state hydrogen storage device as a whole, which has the problem of not being able to accurately control the heating area, which may lead to the problem of excess hydrogen release, resulting in energy waste. Summary of the invention

[0003] The purpose of the present invention is to solve the above-mentioned problem and provide a hydrogen storage device with adjustable hydrogen release amount, which controls the hydrogen release amount by controlling the heating area to prevent the problem of excessive hydrogen release.

[0004] The purpose of the present invention is achieved by the following technical solution: A hydrogen storage device capable of adjusting the amount of hydrogen released comprises:

[0005] A number of hydrogen storage units;

[0006] A plurality of connecting members, each of which is connected between two adjacent hydrogen storage units and is used to open or block a fluid passage between the two adjacent hydrogen storage units;

[0007] A pipeline system, respectively connected to each hydrogen storage unit;

[0008] The two end covers are respectively covered on the two hydrogen storage units at the end portions.

[0009] Furthermore, the hydrogen storage unit comprises:

[0010] The outer tank has an opening at the top and an air hole at the bottom;

[0011] An inner cylinder is fixed inside the outer tank, and its interior is communicated with the air hole; an annular heating chamber is formed between the side wall of the inner cylinder and the side wall of the outer tank, and the heating chamber is communicated with the pipeline system;

[0012] A hydrogen storage material assembly is installed inside the inner cylinder; wherein,

[0013] The connecting piece can open or close the air hole.

[0014] Furthermore, the connecting member includes a support plate and a surrounding plate circumferentially surrounding the edge of the support plate; the surrounding plate extends to both sides of the support plate, and the outer tank is supported on the support plate; a connecting hole is provided on the support plate, and the connecting member can rotate relative to the outer tank, and when the connecting member rotates, the through hole and the air hole can be misaligned or aligned.

[0015] Furthermore, the hydrogen storage material assembly includes a plurality of hydrogen storage material layers sequentially installed from top to bottom inside the inner cylinder through an annular support plate, and a gap is formed between two adjacent hydrogen storage material layers; and the hydrogen storage material layer is provided with a plurality of through holes penetrating therethrough from top to bottom.

[0016] As a preferred solution, the through holes on two adjacent hydrogen storage material layers are staggered with each other.

[0017] The pipeline system includes an air inlet pipeline and an air outlet pipeline, and the air inlet pipeline and the air outlet pipeline are both connected to the heating chamber of each hydrogen storage unit; the air inlet pipeline and the air outlet pipeline are symmetrically arranged with the hydrogen storage unit as the center.

[0018] The air inlet pipeline includes an air inlet main pipe and a plurality of air inlet branch pipes, one end of the air inlet branch pipe is connected to the air inlet main pipe, and the other end thereof is connected to the heating chamber of a hydrogen storage unit; the air outlet pipeline includes an air outlet main pipe and a plurality of air outlet branch pipes, one end of the air outlet branch pipe is connected to the air outlet main pipe, and the other end thereof is connected to the heating chamber of a hydrogen storage unit.

[0019] As a preferred solution, a sealing gasket is provided between the enclosure and the two adjacent upper and lower outer tanks.

[0020] As a preferred solution, the edges of the upper and lower surfaces of the support plate are circumferentially provided with balls, and the balls at least partially protrude from the surface of the support plate and are in contact with the upper and lower outer tanks respectively.

[0021] As a preferred solution, a handle is provided on the outer side of the enclosure; and alignment marks are provided on the outer wall of the enclosure and the outer wall of the outer tank above it, respectively.

[0022] Compared with the prior art, this application has the following beneficial effects:

[0023] (1) The present invention can open or block the fluid passage between two adjacent hydrogen storage units by rotating the connecting piece, and the pipeline system is connected to each hydrogen storage unit respectively. By introducing high-temperature fluid into the corresponding hydrogen storage unit and adjusting the corresponding connecting piece, the corresponding hydrogen storage units are connected to each other, thereby controlling the release of hydrogen from some hydrogen storage units to prevent excessive release of hydrogen.

[0024] (2) The support plate of the present invention is provided with balls to facilitate the rotation of the connecting piece.

[0025] Some additional features of the present application may be explained in the following description. Some additional features of the present application will be apparent to those skilled in the art by inspection of the following description and corresponding drawings or understanding of the production or operation of the embodiments. The features disclosed in the present application may be realized and achieved by practice or use of various methods, means and combinations of the specific embodiments described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The exemplary embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation of the present application. In each figure, the same reference numeral represents the same component.

[0027] Figure 1 It is the front view of the present invention.

[0028] Figure 2 It is a cross-sectional view showing the installation of the hydrogen storage unit and the connecting piece of the present invention.

[0029] Figure 3 for Figure 2 A magnified schematic diagram of center A.

[0030] Figure 4 for Figure 2 A magnified schematic diagram of point B in the middle.

[0031] Figure 5 It is a cross-sectional view of the hydrogen storage unit of the present invention.

[0032] Figure 6 It is a top view of the hydrogen storage unit of the present invention when the hydrogen storage material assembly is not installed.

[0033] Figure 7 It is a cross-sectional view of the connecting piece of the present invention.

[0034] The figure marks in the above drawings are: 1-air inlet main pipe, 2-air inlet branch pipe, 3-end cover, 4-hydrogen storage unit, 5-connecting piece, 6-air outlet main pipe, 7-air outlet branch pipe, 8-heating chamber, 9-support plate, 10-hydrogen storage material layer, 11-through hole, 12-gap, 13-annular support plate, 14-sealing gasket, 16-air hole, 17-connecting hole, 19-installation cavity, 20-outer tank, 21-inner cylinder, 22-enclosing plate, 23-ball. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0036] It should be noted that if the description and claims of the present application and the above-mentioned drawings relate to the terms "first", "second", etc., they are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, if the terms "including" and "having" and any of their variations are involved, it is intended to cover non-exclusive inclusions, for example, the process, method, system, product or equipment that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0037] In this application, if the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside", "outside", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. are involved, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0038] In addition, some of the above terms may be used to express other meanings in addition to indicating orientation or positional relationship. For example, the term "on" may also be used to express a certain dependency or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0039] In addition, in this application, the terms "installed", "set", "provided with", "connected", "connected", "socketed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0040] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0041] Example

[0042] like Figure 1 As shown, this embodiment discloses a hydrogen storage device with adjustable hydrogen release amount, which includes: a plurality of hydrogen storage units 4, a plurality of connectors 5, a pipeline system and two end covers 3.

[0043] The hydrogen storage units 4 are stacked from bottom to top, and two adjacent hydrogen storage units 4 are connected by a connector 5, which is used to open or block the fluid passage between the two adjacent hydrogen storage units 4. The two end covers 3 are respectively covered on the two hydrogen storage units 4 at the end, that is, the two end covers 3 are respectively covered on the uppermost hydrogen storage unit 4 and the lowermost hydrogen storage unit 4, and one end cover 3 is provided with an air inlet, and the other end cover 3 is provided with an air outlet. The pipeline system is respectively connected to each hydrogen storage unit 4, and is used to pass the heat exchange fluid into each hydrogen storage unit 4 separately.

[0044] like Figure 2 As shown, the hydrogen storage unit 4 includes: an outer tank 20, an inner cylinder 21 and a hydrogen storage material assembly. Among them, the upper end of the outer tank 20 is open, and an air hole 16 is arranged on its bottom plate. The inner cylinder 21 is fixed inside the outer tank 20, and the lower end thereof is fixed to the bottom plate of the outer tank 20. The air hole 16 is located inside the inner cylinder 21, so the inner cylinder 21 is connected with the air hole 16. In addition, a gap is formed between the side wall of the inner cylinder 21 and the side wall of the outer tank 20, and a closing plate is arranged between the upper end of the inner cylinder 21 and the upper end of the outer tank 20, so that an annular, closed heating chamber 8 is formed between the side wall of the inner cylinder 21 and the side wall of the outer tank 20, and the heating chamber 8 of each hydrogen storage unit 4 is respectively connected with the pipeline system, as shown in FIG. Figure 5 , 6 shown.

[0045] The inner cylinder 21 is a hollow structure, and its inner space forms a mounting cavity 19 , and the hydrogen storage material assembly is mounted in the mounting cavity 19 .

[0046] like Figure 7 As shown, the connector 5 includes a support plate 9 and a surrounding plate 22 surrounding the edge of the support plate 9, and the surrounding plate 22 extends to the upper and lower sides of the support plate 9. During installation, the support plate 9 of the connector 5 is supported on the top of the hydrogen storage unit 4 below it, and the hydrogen storage unit 4 above it is supported on the upper surface of the support plate 9, and the surrounding plate 22 is enclosed on the outer walls of the upper and lower adjacent hydrogen storage units 4, as shown in FIG. Figure 2 , 3 shown.

[0047] In addition, a connecting hole 17 is provided on the support plate 9, and the connecting member 5 can rotate relative to the outer tank 20, and when the connecting member 5 rotates, the connecting hole 17 on the support plate 9 can be misaligned or aligned with the air hole 16, so that the connecting member 5 can open or close the air hole 16.

[0048] As a preferred implementation, a sealing gasket 14 is provided between the coaming 22 and the two adjacent upper and lower outer tanks 20, and the sealing effect of the sealing gasket 14 prevents hydrogen from leaking from between the coaming 22 and the outer tanks 20. Figure 3 shown.

[0049] In addition, if Figure 7 As shown, the upper and lower surface edges of the support plate 9 are circumferentially provided with balls 23, and the balls 23 at least partially protrude from the surface of the support plate 9 and respectively contact the upper and lower outer tanks 20. The balls 23 can be provided to facilitate the rotation of the connector 5.

[0050] In addition, a handle is provided on the outer side of the enclosure 22 to facilitate the rotation of the connecting piece. At the same time, the outer wall of the enclosure 22 and the outer wall of the outer tank 20 above it are respectively provided with alignment marks; that is, the outer wall of the enclosure 22 is provided with an alignment mark area, and the outer wall of the outer tank 20 is also provided with an alignment mark area. When the connecting piece 5 is rotated to align the alignment mark area on it with the alignment mark area on the outer tank 20, the connecting hole 17 on the connecting piece 5 is aligned with the air hole 16 on the outer tank 20, as shown in FIG. Figure 3 When the alignment mark area on the connector 5 is misaligned with the alignment mark area on the outer tank 20, the connecting hole 17 on the connector 5 is misaligned with the air hole 16 on the outer tank 20, as shown Figure 4 shown.

[0051] like Figure 2 As shown, the hydrogen storage material assembly includes a plurality of hydrogen storage material layers 10 sequentially installed from top to bottom inside the inner cylinder 21 through annular support plates 13. Specifically, a plurality of annular support plates 13 are sequentially arranged on the inner wall of the inner cylinder 21 from top to bottom, and a hydrogen storage material layer 10 is installed on each annular support plate 13. A gap 12 is formed between two adjacent hydrogen storage material layers 10 to facilitate the flow of released hydrogen.

[0052] In addition, the hydrogen material layer 10 is provided with a plurality of through holes 11 penetrating the hydrogen material layer 10 from top to bottom, and hydrogen can flow through the through holes 11 during the hydrogen absorption and desorption process. The through holes 11 on the two adjacent hydrogen storage material layers 10 are staggered with each other, so that the hydrogen flow rate can be reduced during the hydrogen absorption process, thereby improving the hydrogen absorption efficiency.

[0053] like Figure 1As shown, the piping system includes an air inlet pipeline and an air outlet pipeline, and the air inlet pipeline and the air outlet pipeline are both connected to the heating chamber 8 of each hydrogen storage unit 4; the air inlet pipeline and the air outlet pipeline are symmetrically arranged with the hydrogen storage unit 4 as the center, so that the heat exchange fluid enters from one side of the hydrogen storage unit 4 and flows out from the other side.

[0054] Specifically, the air inlet pipeline includes an air inlet main pipe 1 and a plurality of air inlet branch pipes 2, one end of the air inlet branch pipe 2 is connected to the air inlet main pipe 1, and the other end thereof is connected to a heating chamber 8 of a hydrogen storage unit 4. The air outlet pipeline includes an air outlet main pipe 6 and a plurality of air outlet branch pipes 7, one end of the air outlet branch pipe 7 is connected to the air outlet main pipe 6, and the other end thereof is connected to a heating chamber 8 of a hydrogen storage unit 4.

[0055] Through the above structure, when absorbing hydrogen, all the connectors 5 are rotated so that the connecting hole 17 on each connector 5 is aligned with the gas hole 16 on the corresponding hydrogen storage unit 4, and at this time, all the hydrogen storage units 4 are connected to each other. Hydrogen is introduced from the end cover below, and the hydrogen storage material layer 10 in the hydrogen storage unit 4 absorbs hydrogen during the flow of hydrogen. At the same time, a low-temperature fluid is introduced into each hydrogen storage unit 4 through the pipeline system to reduce the temperature of the hydrogen storage material layer 10 and improve the hydrogen absorption efficiency.

[0056] When only part of the hydrogen storage units 4 need to release hydrogen, a high-temperature fluid is introduced into the part of the hydrogen storage units 4 through the pipeline system, and the corresponding connectors 5 are adjusted so that the part of the hydrogen storage units 4 are interconnected to adjust the amount of hydrogen released. For example, when only the top three hydrogen storage units 4 need to release hydrogen, the top three connectors 5 are rotated so that the connecting hole 17 on the connector 5 below the third hydrogen storage unit 4 is misaligned with the air hole 16 on the third hydrogen storage unit 4, and the connecting hole 17 on the first connector 5 and the connecting hole 17 on the second connector 5 are respectively connected to the air hole 16 on the first hydrogen storage unit 4 and the air hole 16 on the second hydrogen storage unit 4. At this time, the top three hydrogen storage units 4 are interconnected to form a fluid passage, and the top three hydrogen storage units 4 are blocked from the bottom hydrogen storage units 4. A high-temperature fluid is introduced into the heating chamber 8 of the three upper hydrogen storage units 4 through the pipeline system, and the hydrogen storage material components in the three upper hydrogen storage units 4 are heated by heat exchange, so that the hydrogen storage material components release hydrogen, and the hydrogen is discharged after passing through the upper end cover 3 and collected for use. It should be noted that since the hydrogen storage unit 4 is fixedly connected to the pipeline system, when the connecting piece is rotated, the hydrogen storage unit 4 will not rotate together.

[0057] When it is necessary to use the hydrogen stored in the lower hydrogen storage unit 4, all hydrogen storage units 4 are connected in the above manner, and a high-temperature fluid is introduced, so that the hydrogen storage material layer 10 in the lower hydrogen storage unit 4 releases hydrogen when heated. Alternatively, the upper hydrogen storage unit 4 that has released hydrogen is disassembled and then the lower hydrogen storage unit 4 is released. Alternatively, when it is necessary to release the hydrogen in the lower hydrogen storage unit 4, the lower hydrogen storage unit 4 is connected by adjusting the connector, and the connector 5 above the topmost hydrogen storage unit 4 that has not released hydrogen is closed, thereby blocking the fluid passage between the hydrogen storage units 4 that have released hydrogen and those that have not released hydrogen, and then the air inlet on the lower end cover 5 is used as the outlet for releasing hydrogen. In this way, it is only necessary to heat the hydrogen storage units 4 located at the bottom that need to release hydrogen.

[0058] It should be noted that all features disclosed in this specification, or steps in all methods or processes disclosed, except for mutually exclusive features and / or steps, can be combined in any manner.

[0059] In addition, the above specific embodiments are exemplary, and those skilled in the art can come up with various solutions inspired by the disclosure of the present invention, and these solutions also belong to the disclosure scope of the present invention and fall within the protection scope of the present invention. Those skilled in the art should understand that the present invention description and its drawings are illustrative and do not constitute a limitation of the claims. The protection scope of the present invention is defined by the claims and their equivalents.

Claims

1. A hydrogen storage device capable of adjusting the amount of hydrogen released, characterized in that: include: A plurality of hydrogen storage units (4); A plurality of connecting members (5), each of which is connected between two adjacent hydrogen storage units (4) and is used to open or block a fluid passage between the two adjacent hydrogen storage units (4); A pipeline system, respectively connected to each hydrogen storage unit (4); The two end covers (3) are respectively covered on the two hydrogen storage units (4) at the end portions.

2. The hydrogen storage device with adjustable hydrogen release amount according to claim 1, characterized in that: The hydrogen storage unit (4) comprises: The outer tank (20) has an open top and an air hole (16) at the bottom; An inner cylinder (21) is fixed inside the outer tank (20), and its interior is communicated with the air hole (16); an annular heating chamber (8) is formed between the side wall of the inner cylinder (21) and the side wall of the outer tank (20), and the heating chamber (8) is communicated with the pipeline system; A hydrogen storage material assembly is installed inside the inner cylinder (21); wherein: The connecting piece (5) can open or close the air hole (16).

3. The hydrogen storage device with adjustable hydrogen release amount according to claim 2, characterized in that: The connecting member (5) comprises a support plate (9) and a surrounding plate (22) circumferentially surrounding the edge of the support plate (9); the surrounding plate (22) extends to both sides of the support plate (9), and the outer tank (20) is supported on the support plate (9); a connecting hole (17) is provided on the support plate (9), and the connecting member (5) can rotate relative to the outer tank (20), and when the connecting member (5) rotates, the through hole (17) and the air hole (16) can be misaligned or aligned.

4. The hydrogen storage device with adjustable hydrogen release amount according to claim 2, characterized in that: The hydrogen storage material assembly comprises a plurality of hydrogen storage material layers (10) which are sequentially installed from top to bottom inside the inner cylinder (21) via an annular support plate (13), and a gap (12) is formed between two adjacent hydrogen storage material layers (10); and the hydrogen storage material layer (10) is provided with a plurality of through holes (11) penetrating the hydrogen storage material layer (10) from top to bottom.

5. The hydrogen storage device with adjustable hydrogen release amount according to claim 4, characterized in that: The through holes (11) on two adjacent hydrogen storage material layers (10) are offset from each other.

6. The hydrogen storage device with adjustable hydrogen release amount according to claim 2, characterized in that: The pipeline system comprises an air inlet pipeline and an air outlet pipeline, wherein the air inlet pipeline and the air outlet pipeline are both in communication with the heating chamber (8) of each hydrogen storage unit (4); the air inlet pipeline and the air outlet pipeline are symmetrically arranged with the hydrogen storage unit (4) as the center.

7. The hydrogen storage device with adjustable hydrogen release amount according to claim 6, characterized in that: The air inlet pipeline comprises an air inlet main pipe (1) and a plurality of air inlet branch pipes (2), one end of the air inlet branch pipe (2) being in communication with the air inlet main pipe (1), and the other end of the air inlet branch pipe (2) being in communication with a heating chamber (8) of a hydrogen storage unit (4); the air outlet pipeline comprises an air outlet main pipe (6) and a plurality of air outlet branch pipes (7), one end of the air outlet branch pipe (7) being in communication with the air outlet main pipe (6), and the other end of the air outlet branch pipe (7) being in communication with the heating chamber (8) of a hydrogen storage unit (4).

8. The hydrogen storage device with adjustable hydrogen release amount according to claim 3, characterized in that: A sealing gasket (14) is provided between the enclosure plate (22) and the two adjacent upper and lower outer tanks (20).

9. The hydrogen storage device with adjustable hydrogen release amount according to claim 3, characterized in that: The edges of the upper and lower surfaces of the support plate (9) are circumferentially provided with balls (23), and the balls (23) at least partially protrude from the surface of the support plate (9) and are in contact with the upper and lower outer tanks (20) respectively.

10. The hydrogen storage device with adjustable hydrogen release amount according to claim 3, characterized in that: A handle is provided on the outer side of the enclosure (22); and alignment marks are provided on the outer wall of the enclosure (22) and the outer wall of the outer tank (20) above the enclosure (22), respectively.

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