Vehicle-mounted dual solid hydrogen storage device

Abstract

According to the technical scheme, the vehicle-mounted dual solid-state hydrogen storage device is characterized by comprising a shell; a first hydrogen storage bottle and a second hydrogen storage bottle are arranged on the shell; a first heat conduction mechanism is arranged in each of the first hydrogen storage bottle and the second hydrogen storage bottle; the cylinder valve is used for controlling the gas circulation state; the cylinder valve is arranged at the end part of the first hydrogen storage cylinder; the second heat conduction mechanism can be externally connected with a cooling device to exchange heat; one end of the second heat conduction mechanism is connected with the first hydrogen storage bottle, and the other end of the second heat conduction mechanism is connected with the second hydrogen storage bottle; the novel integrated vehicle-mounted solid hydrogen storage device can be conveniently and quickly inserted and pulled out, the vibration resistance of vehicle application is improved, and the device has the advantages that the heat conduction performance can be improved, so that the heat transfer efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of hydrogen storage equipment, and particularly to a vehicle-mounted two-stage solid hydrogen storage device. Background Art

[0002] As human society enters the "hydrogen energy economy" era, the storage of hydrogen energy is a key link; low-pressure metal hydride solid hydrogen storage is considered to be one of the most promising hydrogen storage methods, which can provide hydrogen energy for various small fuel cells and can also be used for hydrogen purification.

[0003] When the hydrogen storage device is working, it requires good heat exchange conditions provided by the outside world. The existing hydrogen storage devices generally use a single hydrogen storage bottle. When the single hydrogen storage bottle is used, it directly absorbs heat or dissipates heat from the environment, and is greatly affected by the environmental temperature. Coupled with the low thermal conductivity of the hydrogen storage alloy, the heat transfer efficiency is low, so it needs to be improved. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the embodiments of this application provide a vehicle-mounted two-stage solid hydrogen storage device to solve the problems existing in the related technologies. The technical solutions are as follows:

[0005] The embodiments of this application provide a vehicle-mounted two-stage solid hydrogen storage device, including: a housing; a first hydrogen storage bottle and a second hydrogen storage bottle are arranged on the housing; a first heat conduction mechanism is arranged in both the first hydrogen storage bottle and the second hydrogen storage bottle; a bottle valve for controlling the gas flow state; the bottle valve is arranged at the end of the first hydrogen storage bottle; a second heat conduction mechanism that can be externally connected to a cooling device to exchange heat; one end of the second heat conduction mechanism is connected to the first hydrogen storage bottle, and the other end of the second heat conduction mechanism is connected to the second hydrogen storage bottle.

[0006] In one embodiment, both the first hydrogen storage bottle and the second hydrogen storage bottle have an accommodation cavity for filling hydrogen storage materials; the first heat conduction mechanism is arranged in the accommodation cavity and divides the accommodation cavity into several storage material areas.

[0007] In one embodiment, the first heat conduction mechanism includes: a heat conduction main body; a plurality of heat conduction fins are circumferentially arranged on the outer side of the heat conduction main body; the heat conduction main body is arranged in the accommodation cavity; and a plurality of the heat conduction fins are all in contact with the inner wall of the accommodation cavity.

[0008] In one embodiment, a plurality of ventilation and material leakage holes are formed in the heat conduction fins.

[0009] In one embodiment, it further includes a connecting steel pipe; one end of the connecting steel pipe is connected to the first hydrogen storage bottle, and the other end of the connecting steel pipe is connected to the second hydrogen storage bottle.

[0010] In one embodiment, a first filter is provided inside the first hydrogen storage bottle; a second filter is provided inside the second hydrogen storage bottle.

[0011] In one embodiment, a pressure relief valve is provided on the bottle valve.

[0012] In one embodiment, a first stop valve is provided on the bottle valve; a second stop valve is provided on the second hydrogen storage bottle.

[0013] In one embodiment, a quick connector for external connection of a pipeline is provided on the first stop valve.

[0014] In one embodiment, a handle for easy holding is further provided on the housing.

[0015] The advantages or beneficial effects in the above technical solutions at least include:

[0016] The hydrogen storage device of the present application is provided with a first hydrogen storage bottle and a second hydrogen storage bottle inside the housing. A first heat conduction mechanism is provided in both hydrogen storage bottles, and both hydrogen storage bottles are externally connected with a second heat conduction mechanism. When the first heat conduction mechanism and the second heat conduction mechanism work, heat exchange can be jointly performed on the hydrogen storage materials in the two hydrogen storage bottles, thereby improving the heat conduction performance of the hydrogen storage bottles and further improving the heat transfer efficiency of the hydrogen storage device.

[0017] The above summary is only for the purpose of the specification and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present application will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In the drawings, unless otherwise specified, the same reference numerals throughout the several views denote the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments disclosed in the present application and should not be regarded as limiting the scope of the present application.

[0019] Figure 1 is the overall structural schematic diagram of the present utility model;

[0020] Figure 2 is the longitudinal sectional schematic diagram of the present utility model;

[0021] Figure 3 is the transverse sectional schematic diagram of the present utility model;

[0022] Figure 4 is the internal structural schematic diagram of the first hydrogen storage bottle in the present utility model.

[0023] In the figure: 1. Housing; 11. First hydrogen storage bottle; 12. Second hydrogen storage bottle; 2. First heat conduction mechanism; 21. Heat conduction main body; 22. Heat conduction sheet; 23. Ventilation and leakage hole; 3. Bottle valve; 4. Second heat conduction mechanism; 5. Connecting steel pipe; 61. First filter; 62. Second filter; 7. Pressure relief valve; 81. First stop valve; 82. Second stop valve; 9. Quick connector; 10. Attached handle. Detailed implementation manners

[0024] In the following, in order to make the objectives, features, and advantages of the present utility model more obvious and understandable, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0025] The present utility model will be described in detail below with reference to the drawings and embodiments.

[0026] As Figures 1 to 4 shown, the present utility model provides a vehicle-mounted two-stage solid hydrogen storage device, including: a housing 1; a first hydrogen storage bottle 11 and a second hydrogen storage bottle 12 are arranged on the housing 1; a first heat conduction mechanism 2 is arranged in both the first hydrogen storage bottle 11 and the second hydrogen storage bottle 12; a bottle valve 3 for controlling the gas flow state; the bottle valve 3 is arranged at the end of the first hydrogen storage bottle 11; a second heat conduction mechanism 4 can be externally connected to a cooling device to exchange heat; one end of the second heat conduction mechanism 4 is connected to the first hydrogen storage bottle 11, and the other end of the second heat conduction mechanism 4 is connected to the second hydrogen storage bottle 12.

[0027] In this embodiment, a first hydrogen storage bottle 11 and a second hydrogen storage bottle 12 are arranged on the housing 1, and an elliptical columnar body is formed between the above structures. The housing 1 can improve the pressure resistance of the hydrogen storage bottle; mounting and fixing holes are added to the housing 1 to facilitate positioning and combination with the whole vehicle; a U-shaped water channel is integrated on the housing 1, and a quick-connect interface can be used to facilitate quick docking with the vehicle pipeline; the first hydrogen storage bottle 11 and the second hydrogen storage bottle 12 have the same specifications and are in a two-stage structure (connected to each other), thereby increasing the hydrogen storage volume and making it more convenient to replace the hydrogen storage device under vehicle-mounted conditions; a bottle valve 3 for controlling the gas flow state is arranged at the end of the first hydrogen storage bottle 11, and the two hydrogen storage bottles are connected and share one bottle valve 3 to form an integrated structure, which is more convenient for hydrogen charging and discharging, improves work efficiency and saves certain costs; functional structures such as temperature and pressure sensors can also be integrally arranged on the bottle valve 3;

[0028] A first heat conduction mechanism 2 is provided in each of the two hydrogen storage bottles, and a second heat conduction mechanism 4 is externally connected to each of the two hydrogen storage bottles. When the first heat conduction mechanism 2 and the second heat conduction mechanism 4 work, heat exchange can be performed on the two hydrogen storage bottles, thereby improving the heat conduction performance of the two hydrogen storage bottles, and further improving the heat transfer efficiency of the hydrogen storage device; the second heat conduction mechanism 4 can be externally connected to a cooling device (such as a structure like an electronic fan or a cooling pipeline), so as to quickly and effectively transfer heat, dissipate heat when hydrogen is replenished, and absorb heat when hydrogen is released (part of the heat energy released by the hydrogen fuel cell engine).

[0029] Furthermore, an accommodating cavity for filling hydrogen storage materials is provided in each of the first hydrogen storage bottle 11 and the second hydrogen storage bottle 12; the first heat conduction mechanism 2 is arranged in the accommodating cavity and divides the accommodating cavity into several storage material regions.

[0030] In this embodiment, an accommodating cavity is provided in each of the first hydrogen storage bottle 11 and the second hydrogen storage bottle 12, and the accommodating cavity is used to provide a filling space for the hydrogen storage materials; a first heat conduction mechanism 2 is arranged in the accommodating cavities of the first hydrogen storage bottle 11 and the second hydrogen storage bottle 12, and the first heat conduction mechanism 2 can divide the inside of the accommodating cavity into multiple storage material regions. Through the above partitioning, vibration of the hydrogen storage materials in the bottle can be effectively avoided, and friction between the hydrogen storage materials can be reduced.

[0031] Furthermore, the first heat conduction mechanism 2 includes: a heat conduction main body 21; a plurality of heat conduction fins 22 are circumferentially arranged on the outer side of the heat conduction main body 21; the heat conduction main body 21 is arranged in the accommodating cavity; and a plurality of the heat conduction fins 22 are all in contact with the inner wall of the accommodating cavity.

[0032] In this embodiment, the heat conduction main body 21 and the plurality of heat conduction fins 22 are an integrally formed structure, and the plurality of heat conduction fins 22 are connected to the outer side of the heat conduction main body 21, and structures such as a "cross", a "rice" character, and a "well" character can be formed. The accommodating cavity is divided into different storage material regions by the heat conduction fins 22. Taking the "cross" structure as an example, the first heat conduction mechanism 2 is described in detail as follows:

[0033] Four heat conduction fins 22 are arranged on the outer side of the heat conduction main body 21 with a "cross" structure, and the included angle between each two heat conduction fins 22 is 90°. The first heat conduction mechanism 2 is made of the same material as the bottle body, and can be placed in the accommodating cavity through hot and cold processes, or can be firmly combined with the bottle body through die-casting processing. The heat conduction fins 22 are in interference fit with the inner wall of the accommodating cavity, and the close contact can fully conduct the heat energy of the solid material, which is beneficial to the transfer of heat from outside the bottle to inside the bottle when hydrogen is released and the transfer of energy inside the bottle to outside when hydrogen is filled, improving the heat transfer efficiency.

[0034] Furthermore, a plurality of ventilation and material leakage holes 23 are formed in the heat conduction fins 22.

[0035] In this embodiment, a plurality of ventilation and material leakage holes 23 are formed in each heat conducting sheet 22, and the plurality of ventilation and material leakage holes 23 are vertically arranged on the heat conducting sheet 22. The ventilation and material leakage holes 23 can not only increase the hydrogen storage volume of the accommodation cavity, facilitate the stress release of the hydrogen storage material during expansion and contraction, but also promote the hydrogen flow in different regions of the accommodation cavity, facilitating the effective transfer of hydrogen between the hydrogen storage materials.

[0036] Further, it further includes a connecting steel pipe 5; one end of the connecting steel pipe 5 is connected to the first hydrogen storage bottle 11, and the other end of the connecting steel pipe 5 is connected to the second hydrogen storage bottle 12.

[0037] In this embodiment, both ends of the connecting steel pipe 5 are respectively communicated with the accommodation cavity in the first hydrogen storage bottle 11 and the accommodation cavity in the second hydrogen storage bottle 12, so that the internal storage spaces of the first hydrogen storage bottle 11 and the second hydrogen storage bottle 12 are communicated with each other. The hydrogen energy in the first hydrogen storage bottle 11 and the second hydrogen storage bottle 12 is shared to form an integrated structure, achieving a two - connection effect.

[0038] Further, a first filter 61 is arranged in the first hydrogen storage bottle 11; a second filter 62 is arranged in the second hydrogen storage bottle 12.

[0039] In this embodiment, the first filter 61 is arranged at the entrance of the accommodation cavity of the first hydrogen storage bottle 11, which can provide a filtering effect for the first hydrogen storage bottle 11 during hydrogen filling and replacement; the second filter 62 is arranged at the entrance of the accommodation cavity of the second hydrogen storage bottle 12, which can provide a filtering effect for the second hydrogen storage bottle 12 during hydrogen filling and replacement, preventing fine powder from overflowing and blocking pipelines and valves.

[0040] Further, a pressure relief valve 7 is arranged on the bottle valve 3.

[0041] In this embodiment, the pressure relief valve 7 is arranged on the bottle valve 3. When the pressure in the bottle valve 3 is too high, the pressure relief valve 7 can be opened to relieve the pressure of the device.

[0042] Further, a first stop valve 81 is arranged on the bottle valve 3; a second stop valve 82 is arranged on the second hydrogen storage bottle 12.

[0043] In this embodiment, a first stop valve 81 is arranged on the bottle valve 3 of the first hydrogen storage bottle 11. The first stop valve 81 can seal the accommodation cavity inside the first hydrogen storage bottle 11, thus achieving the sealing effect of the first hydrogen storage bottle 11; a second stop valve 82 is arranged on the second hydrogen storage bottle 12. The second stop valve 82 can seal the accommodation cavity inside the second hydrogen storage bottle 12, thus achieving the sealing effect of the second hydrogen storage bottle 12.

[0044] Further, a quick connector 9 for external connection of pipelines is arranged on the first stop valve 81.

[0045] In this embodiment, the quick connector 9 is arranged on the first stop valve 81 and is used for externally connecting a pipeline, so that the first stop valve 81 can be connected to an external device through the quick connector 9, facilitating operations such as hydrogen filling and replacement of the device.

[0046] Furthermore, a handle 10 for easy holding is also arranged on the housing 1.

[0047] In this embodiment, the handle 10 is arranged on one side of the housing 1. A user can move the device with one hand through the handle 10, making its transportation more flexible and convenient.

[0048] For a vehicle-mounted two-stage solid hydrogen storage device of the present utility model, the functions of the modules in each device in the embodiment can refer to the corresponding descriptions in the above method, and it has the advantage of improving the heat conduction performance to enhance the heat transfer efficiency.

[0049] In the description of this specification, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include one or more of such features.

[0050] In the present utility model, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature can include the first and second features being in direct contact, or can include the first and second features not being in direct contact but being in contact through other features between them. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "below", "under" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature. Terms such as "vertical", "horizontal", "left", "right", "up", "down" and similar expressions are only for the purpose of illustration, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model.

[0051] As described above, it is only the specific implementation manner of the present application. However, the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of various changes or substitutions, and these should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A vehicle-mounted two-stage solid-state hydrogen storage device, characterized in that, Comprising: A housing; a first hydrogen storage bottle and a second hydrogen storage bottle are arranged on the housing; a first heat conduction mechanism is arranged in both the first hydrogen storage bottle and the second hydrogen storage bottle; A bottle valve for controlling the gas flow state; the bottle valve is arranged at the end of the first hydrogen storage bottle; A second heat conduction mechanism that can be externally connected to a cooling device to exchange heat; one end of the second heat conduction mechanism is connected to the first hydrogen storage bottle, and the other end of the second heat conduction mechanism is connected to the second hydrogen storage bottle.

2. The on-vehicle two-stage solid-state hydrogen storage device according to claim 1, wherein Both the first hydrogen storage bottle and the second hydrogen storage bottle have an accommodation cavity for filling hydrogen storage materials; the first heat conduction mechanism is arranged in the accommodation cavity and divides the accommodation cavity into several storage material areas.

3. The on-vehicle two-stage solid-state hydrogen storage device according to claim 2, wherein, The first heat conduction mechanism includes: a heat conduction main body; several heat conduction fins are circumferentially arranged on the outer side of the heat conduction main body; the heat conduction main body is arranged in the accommodation cavity; several of the heat conduction fins are all in contact with the inner wall of the accommodation cavity.

4. The on-vehicle two-stage solid hydrogen storage device according to claim 3, wherein, Several ventilation and material leakage holes are formed in the heat conduction fins.

5. The on-vehicle two-stage solid hydrogen storage device according to any one of claims 1-4, characterized in that, It further includes a connecting steel pipe; one end of the connecting steel pipe is connected to the first hydrogen storage bottle, and the other end of the connecting steel pipe is connected to the second hydrogen storage bottle.

6. The on-vehicle two-stage solid-state hydrogen storage device according to any one of claims 1-4, characterized in that, A first filter is arranged in the first hydrogen storage bottle; a second filter is arranged in the second hydrogen storage bottle.

7. The on-vehicle two-stage solid hydrogen storage device according to any one of claims 1 to 4, characterized in that A pressure relief valve is arranged on the bottle valve.

8. The on-vehicle two-stage solid-state hydrogen storage device according to any one of claims 1-4, characterized in that A first stop valve is arranged on the bottle valve; a second stop valve is arranged on the second hydrogen storage bottle.

9. The on-vehicle two-stage solid-state hydrogen storage device according to claim 8, wherein, A quick connector for externally connecting a pipeline is arranged on the first stop valve.

10. The on-vehicle two-stage solid-state hydrogen storage device according to any one of claims 1-4, characterized in that, An attached handle for easy holding is further arranged on the housing.

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