Pressure-stabilizing hydrogen storage device

Abstract

The utility model relates to the technical field of hydrogen storage, in particular to a pressure stabilizing hydrogen storage device which comprises a buffer tank, a solid hydrogen storage tank, a hydrogen supplementing pipeline and a first valve, the buffer tank communicates with a hydrogen storage cavity of the solid hydrogen storage tank through the hydrogen supplementing pipeline, and the first valve is installed on the hydrogen supplementing pipeline; the solid hydrogen storage tank is used for storing and releasing hydrogen, and the buffer tank is used for containing the hydrogen released by the solid hydrogen storage tank. Therefore, the solid hydrogen storage material in the solid hydrogen storage tank can be used for storing hydrogen, compared with the mode that hydrogen is directly stored in the tank, the solid hydrogen storage tank is small in occupied space, safe and reliable, when hydrogen in the buffer tank is insufficient, the solid hydrogen storage tank releases hydrogen into the buffer tank, and the buffer tank fills hydrogen into equipment to be hydrogenated subsequently, so that the hydrogen storage efficiency is improved. And the pressure stabilizing and efficient inflation effects are achieved, and more convenience and rapidness are achieved. Therefore, for a huge and complex hydrogen refueling station, the device is simple in structure, small, flexible, safe and reliable, so that the device can be widely set up, and hydrogen can be conveniently charged into equipment such as a hydrogen energy two-wheeled vehicle or a forklift.

Description

Technical Field

[0001] The present application relates to the field of hydrogen storage technology, and in particular to a pressure-stabilized hydrogen storage device. Background Art

[0002] Currently, hydrogen storage tanks are devices used to store hydrogen energy and can be used in hydrogen-powered two-wheeled vehicles or forklifts, rail transportation, ships, aviation and other fields. Currently, the use of portable hydrogen storage tanks in hydrogen-powered two-wheeled vehicles or forklifts to refuel hydrogen-powered two-wheeled vehicles and forklifts at any time has become the main application scenario of hydrogen storage devices. Currently, hydrogen-powered two-wheeled vehicles or forklifts can only be refueled at hydrogen refueling stations. However, due to the large size and complex structure of hydrogen refueling stations, there are very few hydrogen refueling stations, which makes it difficult to conveniently refuel hydrogen-powered two-wheeled vehicles or forklifts. Utility Model Content

[0003] The purpose of this application is to provide a pressure-stabilized hydrogen storage device, which to a certain extent solves the problem in the prior art that hydrogen refueling stations are quite large in size and complex in structure, resulting in extremely few hydrogen refueling stations, and thus conveniently replenishing hydrogen for hydrogen-powered two-wheeled vehicles or forklifts has become a difficult technical problem.

[0004] The present application provides a pressure-stabilized hydrogen storage device, comprising: a buffer tank, a solid-state hydrogen storage tank, a hydrogen replenishing pipeline, and a first valve; wherein the buffer tank is connected to the hydrogen storage chamber of the solid-state hydrogen storage tank through the hydrogen replenishing pipeline, and the first valve is installed on the hydrogen replenishing pipeline; the solid-state hydrogen storage tank is used to store and release hydrogen, and the buffer tank is used to contain the hydrogen released by the solid-state hydrogen storage tank.

[0005] In the above technical solution, further, along the vertical direction, the buffer tank is arranged on the top of the solid-state hydrogen storage tank.

[0006] In any of the above technical solutions, further, the buffer tank is detachably connected to the solid-state hydrogen storage tank.

[0007] In any of the above technical solutions, further, the pressure-stabilizing hydrogen storage device also includes a first fastening component, a first connecting portion is formed outside the buffer tank, a second connecting portion is formed outside the solid-state hydrogen storage tank, and the first connecting portion and the second connecting portion are detachably connected through the first fastening component.

[0008] In any of the above technical solutions, further, the pressure-stabilized hydrogen storage device also includes a supporting member, the buffer tank and the solid-state hydrogen storage tank are both arranged on the supporting member, and a roller is provided at the bottom of the supporting member.

[0009] In any of the above technical solutions, further, the pressure-stabilizing hydrogen storage device also includes a limiting member and a second fastening member; wherein, a plurality of the limiting members are sequentially arranged on the periphery of the buffer tank and / or the solid-state hydrogen storage tank, and any of the limiting members and the supporting member are connected through the second fastening member.

[0010] In any of the above technical solutions, further, the pressure-stabilized hydrogen storage device also includes a pressure sensor, and a detection end of the pressure sensor is connected to the interior of the buffer tank.

[0011] In any of the above technical solutions, further, the pressure-stabilized hydrogen storage device also includes a safety valve, the buffer tank is formed with an exhaust port connected to a pipe inside the buffer tank, and the safety valve is installed at the exhaust port.

[0012] In any of the above technical solutions, further, the pressure-stabilized hydrogen storage device also includes a hydrogenation pipeline and a second valve; wherein the hydrogenation pipeline is connected to the buffer tank, and the second valve is installed on the hydrogenation pipeline.

[0013] In any of the above technical solutions, further, when there are multiple buffer tanks, the pressure-stabilized hydrogen storage device further includes a total output pipeline, a first connector, and a second connector;

[0014] Wherein, one end of the total output pipeline is closed, the other end of the total output pipeline is open, and a plurality of inlets are formed on the total output pipeline, and each of the inlets is provided with the first connector;

[0015] The outlet of the hydrogenation pipeline connected to any of the buffer tanks is provided with a second connector, and the first connector and the second connector are detachably connected.

[0016] In any of the above technical solutions, further, the number of the buffer tank, the solid-state hydrogen storage tank and the hydrogen replenishing pipeline is multiple and corresponds one to one.

[0017] In any of the above technical solutions, further, the hydrogen storage chamber is filled with solid magnesium-based hydrogen storage material.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] The present application provides a novel pressure-stabilized hydrogen storage device, which can use a solid-state hydrogen storage tank to store hydrogen. That is, the solid-state hydrogen storage material in the solid-state hydrogen storage tank is used to adsorb hydrogen and store the hydrogen. Compared with directly storing the hydrogen in the tank, it takes up less space and is safer and more reliable. When the hydrogen in the buffer tank is insufficient, the first valve can be opened to allow the solid-state hydrogen storage tank to release hydrogen into the buffer tank, providing sufficient hydrogen for the buffer tank. The buffer tank can then be used to charge hydrogen for the equipment to be hydrogenated, thereby playing the role of pressure stabilization and efficient charging, which is more convenient and quick.

[0020] It can be seen that the new pressure-stabilized hydrogen storage device provided in this application is simple in structure, compact and flexible, safe and reliable compared to the large and complex hydrogen refueling stations, so it can be widely installed, thereby facilitating the hydrogenation of hydrogen-powered two-wheeled vehicles or forklifts waiting for hydrogen refueling. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the specific implementation methods or the description of the prior art. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0022] Figure 1 This is a schematic structural diagram of the pressure-stabilized hydrogen storage device provided in an embodiment of the present application.

[0023] Reference numerals:

[0024] 1-buffer tank, 101-first connection part, 2-solid-state hydrogen storage tank, 201-second connection part, 3-hydrogen replenishment pipeline, 4-first valve, 5-first fastening member, 6-supporting member, 7-roller, 8-limiting member, 9-second fastening member, 10-pressure sensor, 11-safety valve, 12-hydrogenation pipeline, 13-second valve, 14-total output pipeline. DETAILED DESCRIPTION

[0025] The technical solution of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0026] The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the present application.

[0027] Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of this application.

[0028] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0030] Refer to the following Figure 1 The present invention describes a pressure-stabilized hydrogen storage device according to some embodiments of the present application.

[0031] See also Figure 1 As shown, an embodiment of the present application provides a pressure-stabilized hydrogen storage device, comprising: a buffer tank 1, a solid-state hydrogen storage tank 2, a hydrogen replenishing pipeline 3 and a first valve 4; wherein, the buffer tank 1 is connected to the hydrogen storage cavity of the solid-state hydrogen storage tank 2 through the hydrogen replenishing pipeline 3, and the first valve 4 is installed on the hydrogen replenishing pipeline 3; the solid-state hydrogen storage tank 2 is used to store and release hydrogen, and the buffer tank 1 is used to hold the hydrogen released by the solid-state hydrogen storage tank 2.

[0032] According to the structure described above, the present application provides a new type of pressure-stabilized hydrogen storage device, which can use the solid-state hydrogen storage tank 2 to store hydrogen. That is, the solid-state hydrogen storage material in the solid-state hydrogen storage tank 2 is used to adsorb hydrogen and store hydrogen. Compared with directly storing hydrogen in the tank, it takes up less space and is safer and more reliable. When there is insufficient hydrogen in the buffer tank 1, the first valve 4 can be opened to allow the solid-state hydrogen storage tank 2 to release hydrogen into the buffer tank 1, providing sufficient hydrogen for the buffer tank 1, and the buffer tank 1 can subsequently charge hydrogen for the equipment to be hydrogenated, thereby playing a role in pressure stabilization and efficient inflation, which is more convenient and quick.

[0033] It can be seen that the new pressure-stabilized hydrogen storage device provided in this application is simple in structure, compact and flexible, safe and reliable compared to the large and complex hydrogen refueling stations, so it can be widely installed, thereby facilitating the hydrogenation of hydrogen-powered two-wheeled vehicles or forklifts waiting for hydrogen refueling.

[0034] In this embodiment, preferably, Figure 1 As shown, along the vertical direction, the buffer tank 1 is arranged on the top of the solid hydrogen storage tank 2.

[0035] According to the structure described above, integrating the buffer tank 1 on the top of the solid-state hydrogen storage tank 2 has a higher degree of integration, fully utilizes the space in the height direction, reduces the effect of the horizontal space, and makes the size of the pressure-stabilizing hydrogen storage device more compact.

[0036] It should be noted that the buffer tank 1 may be arranged not on the top of the solid-state hydrogen storage tank 2 but on the side of the solid-state hydrogen storage tank 2 , etc., depending on actual needs.

[0037] In this embodiment, preferably, Figure 1 As shown, the buffer tank 1 is detachably connected to the solid hydrogen storage tank 2.

[0038] According to the structure described above, the buffer tank 1 and the solid-state hydrogen storage tank 2 are connected in a detachable manner, which facilitates the transportation of the solid-state hydrogen storage tank 2 to a designated location such as a hydrogen refueling station for charging. The buffer tank 1 and the solid-state hydrogen storage tank 2 are light in weight and easy to transport, and the buffer tank 1 and the solid-state hydrogen storage tank 2 can be maintained separately, thereby improving the convenience of operation.

[0039] In this embodiment, preferably, Figure 1 As shown, the pressure-stabilizing hydrogen storage device also includes a first fastening member 5, a first connecting portion 101 is formed outside the buffer tank 1, and a second connecting portion 201 is formed outside the solid-state hydrogen storage tank 2, and the first connecting portion 101 and the second connecting portion 201 are detachably connected through the first fastening member 5.

[0040] According to the structure described above, the first connection part 101 outside the buffer tank 1 and the second connection part 201 outside the solid hydrogen storage tank 2 are abutted against each other, and are detachably connected by a first fastening member 5 such as a bolt, which belongs to one of the aforementioned detachable connection methods, is easy to install and disassemble, and is simple and convenient to operate.

[0041] It should be noted that the connection method between the buffer tank 1 and the solid hydrogen storage tank 2 is not limited to the above, and they can also be connected by snapping, plugging, welding, etc., or the two can be simply placed together in the vertical direction without any connection relationship.

[0042] In this embodiment, preferably, Figure 1As shown, the pressure-stabilizing hydrogen storage device further includes a supporting member 6 , the buffer tank 1 and the solid-state hydrogen storage tank 2 are both arranged on the supporting member 6 , and a roller 7 is provided at the bottom of the supporting member 6 .

[0043] According to the structure described above, the buffer tank 1 and the bearing member are integrated on the supporting member 6, with a higher degree of integration. In addition, rollers 7 are provided at the bottom of the supporting member 6 to facilitate overall movement, which is convenient for hydrogen charging itself and for charging the equipment to be hydrogenated, thereby improving the convenience of operation.

[0044] Furthermore, preferably, the supporting member 6 is a bracket or plate-shaped structure, but is not limited thereto.

[0045] In this embodiment, preferably, Figure 1 As shown, the pressure-stabilizing hydrogen storage device also includes a limiting member 8 and a second fastening member 9; wherein, multiple limiting members 8 are sequentially arranged on the periphery of the solid-state hydrogen storage tank 2, and any limiting member 8 is connected to the supporting member 6 through the second fastening member 9.

[0046] According to the structure described above, it can be seen that multiple limiting members 8 are used to limit the four sides of the solid-state hydrogen storage tank 2, and the buffer tank 1 is fixed on the top of the solid-state hydrogen storage tank 2, so that the overall structure of the buffer tank 1 and the solid-state hydrogen storage tank 2 is more stable and firm on the supporting member 6, and is not easy to shake or even fall over, etc., and is safer and more reliable. In addition, the limiting member 8 and the supporting member 6 can be detachably connected by a second fastening member 9 such as a screw or bolt, which is convenient for installation and disassembly, thereby improving the convenience of operation.

[0047] Furthermore, preferably, the limiting member 8 is L-shaped.

[0048] Further, preferably, one of the limiting member 8 and the supporting member 6 is provided with a waist-shaped hole, the other of the limiting member 8 and the supporting member 6 is provided with a circular hole, and the second fastening member 9 is installed in the waist-shaped hole and the circular hole.

[0049] It should be noted that the limiting member 8 can also be lengthened so that multiple limiting members 8 can be simultaneously pressed against the sides of the buffer tank 1 and the solid-state hydrogen storage tank 2 from top to bottom, and limit both of them at the same time, so that the buffer tank 1 and the solid-state hydrogen storage tank 2 are more stable and firm on the supporting member 6, and are not easy to shake or even fall over, etc., and are safer and more reliable.

[0050] In addition, when the buffer tank 1 is set on the side of the solid-state hydrogen storage tank 2, multiple limiting components 8 can be provided for both of them respectively. That is to say, multiple limiting components 8 are provided on the outer periphery of the buffer tank 1 and the solid-state hydrogen storage tank 2 to limit the two respectively.

[0051] In this embodiment, preferably, Figure 1As shown, the pressure-stabilized hydrogen storage device further includes a pressure sensor 10 , and a detection end of the pressure sensor 10 is connected to the interior of the buffer tank 1 .

[0052] According to the structure described above, the pressure sensor 10 is used to constantly detect the pressure in the buffer tank 1 to ensure the inflation pressure and safety.

[0053] In this embodiment, preferably, Figure 1 As shown, the pressure-stabilized hydrogen storage device further includes a safety valve 11. The buffer tank 1 is formed with an exhaust port connected to a pipe inside the buffer tank, and the safety valve 11 is installed at the exhaust port.

[0054] According to the structure described above, a safety valve 11 is installed on the exhaust port. The function of the safety valve 11 is to prevent the medium pressure in the buffer tank 1 from exceeding the specified value by discharging the medium to the outside of the system when the medium pressure in the buffer tank 1 rises to exceed the specified value. The control pressure does not exceed the specified value, which plays an important protective role in personal safety and equipment operation.

[0055] In this embodiment, preferably, Figure 1 As shown, the pressure-stabilized hydrogen storage device further includes a hydrogenation pipeline 12 and a second valve 13 ; wherein the hydrogenation pipeline 12 is connected to the buffer tank 1 , and the second valve 13 is installed on the hydrogenation pipeline 12 .

[0056] According to the structure described above, the hydrogenation pipeline 12 can be used to charge the hydrogenation equipment to improve the convenience of operation, and the second valve 13 is provided on the hydrogenation pipeline 12 to improve controllability.

[0057] In this embodiment, preferably, Figure 1 As shown, there are multiple buffer tanks 1, solid hydrogen storage tanks 2 and hydrogen replenishing pipelines 3, and they correspond one to one.

[0058] According to the structure described above, a buffer tank 1, a solid hydrogen storage tank 2, a hydrogen replenishment pipeline 3 and a hydrogenation pipeline 12 serve as a set of hydrogen storage and release structures, and multiple groups can be set up accordingly, thereby simultaneously performing hydrogenation treatment on multiple hydrogenation equipment.

[0059] Furthermore, preferably, the aforementioned hydrogen storage and release structures are in two groups. Of course, it is not limited thereto, and can also be in one group or more than two groups, depending on actual needs.

[0060] In this embodiment, preferably, Figure 1 As shown, when there are multiple buffer tanks 1, the pressure-stabilized hydrogen storage device further includes a total output pipeline 14, a first connector and a second connector;

[0061] One end of the total output pipeline 14 is closed, and the other end of the total output pipeline 14 is open. A plurality of inlets are formed on the total output pipeline 14, and each inlet is provided with a first connector.

[0062] The outlet of the hydrogenation pipeline 12 connected to any buffer tank 1 is provided with a second connector, and the first connector and the second connector are detachably connected.

[0063] According to the structure described above, it can be seen that when there are multiple buffer tanks 1, that is, when there are multiple hydrogenation pipelines 12, multiple hydrogenation pipelines 12 can simultaneously hydrogenate multiple devices to be hydrogenated, or multiple hydrogenation pipelines 12 can be connected to the total output pipeline 14 at the same time, and the total transmission pipeline can be used to simultaneously hydrogenate the same device to be hydrogenated. It can be seen that the pressure-stabilized hydrogen storage device provided by this application has multiple usage methods and a wider range of applications.

[0064] It should be noted that the aforementioned total output pipeline 14 and other structures may not be provided, and the specific selection is made according to actual needs.

[0065] In this embodiment, the hydrogen storage chamber preferably contains a solid magnesium-based hydrogen storage material. This hydrogen storage material has a large hydrogen storage capacity, abundant resources, low cost, and a wide range of applications, including new energy, medicine, agriculture, and other fields. Of course, the solid hydrogen storage material in the hydrogen storage chamber is not limited to the above and can be selected according to actual needs.

[0066] It should be noted that the solid-state hydrogen storage tank 2 is a common device in the prior art, and its internal structure will not be described in detail here.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A pressure-stabilized hydrogen storage device, characterized in that: include: A buffer tank, a solid-state hydrogen storage tank, a hydrogen replenishing pipeline and a first valve; wherein the buffer tank is connected to the hydrogen storage chamber of the solid-state hydrogen storage tank through the hydrogen replenishing pipeline, and the first valve is installed on the hydrogen replenishing pipeline; the solid-state hydrogen storage tank is used to store and release hydrogen, and the buffer tank is used to contain the hydrogen released by the solid-state hydrogen storage tank.

2. The pressure-stabilized hydrogen storage device according to claim 1, characterized in that: Along the vertical direction, the buffer tank is arranged on the top of the solid-state hydrogen storage tank.

3. The pressure-stabilized hydrogen storage device according to claim 2, characterized in that: The buffer tank is detachably connected to the solid-state hydrogen storage tank.

4. The pressure-stabilized hydrogen storage device according to claim 3, characterized in that: The pressure-stabilized hydrogen storage device also includes a first fastening component. A first connecting portion is formed outside the buffer tank, and a second connecting portion is formed outside the solid-state hydrogen storage tank. The first connecting portion and the second connecting portion are detachably connected through the first fastening component.

5. The pressure-stabilized hydrogen storage device according to claim 1, characterized in that: The pressure-stabilized hydrogen storage device further includes a supporting component, the buffer tank and the solid-state hydrogen storage tank are both arranged on the supporting component, and a roller is provided at the bottom of the supporting component.

6. The pressure-stabilized hydrogen storage device according to claim 5, characterized in that: The pressure-stabilizing hydrogen storage device also includes a limiting member and a second fastening member; wherein, multiple limiting members are sequentially arranged on the periphery of the buffer tank and / or the solid-state hydrogen storage tank, and any of the limiting members is connected to the supporting member through the second fastening member.

7. The pressure-stabilized hydrogen storage device according to claim 1, characterized in that: The pressure-stabilized hydrogen storage device further includes a pressure sensor, and a detection end of the pressure sensor is connected to the interior of the buffer tank; and / or The pressure-stabilized hydrogen storage device further includes a safety valve. The buffer tank is formed with an exhaust port connected to a pipe inside the buffer tank, and the safety valve is installed at the exhaust port.

8. The pressure-stabilized hydrogen storage device according to claim 1, characterized in that: The pressure-stabilized hydrogen storage device further includes a hydrogenation pipeline and a second valve; wherein the hydrogenation pipeline is connected to the buffer tank, and the second valve is installed on the hydrogenation pipeline.

9. The pressure-stabilized hydrogen storage device according to claim 8, characterized in that: When there are multiple buffer tanks, the pressure-stabilized hydrogen storage device further includes a total output pipeline, a first connector, and a second connector; Wherein, one end of the total output pipeline is closed, the other end of the total output pipeline is open, and a plurality of inlets are formed on the total output pipeline, and each of the inlets is provided with the first connector; The outlet of the hydrogenation pipeline connected to any of the buffer tanks is provided with a second connector, and the first connector and the second connector are detachably connected.

10. The pressure-stabilized hydrogen storage device according to any one of claims 1 to 9, characterized in that: The buffer tank, the solid hydrogen storage tank and the hydrogen replenishing pipeline are all multiple in number and correspond one to one; and / or The hydrogen storage cavity is internally filled with solid magnesium-based hydrogen storage material.

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