A serpentine wall panel storage structure for hydrogen storage alloys

Abstract

This utility model relates to the field of solid-state hydrogen storage technology, and more particularly to a serpentine wall panel storage structure for hydrogen storage alloys. It includes several sequentially stacked storage units. Each storage unit includes a base plate with a fluid channel inside. One side of the base plate has a fluid inlet and a fluid outlet. Several vertically arranged serpentine wall panels are fixed to the upper surface of the base plate. Between adjacent serpentine wall panels are several mounting slots for installing sheet-like hydrogen storage alloys or directly holding powdered hydrogen storage alloys. The top of the uppermost storage unit has a top plate, and the top plate and the base plate of each storage unit are tightened and fixed together by several long bolts. Modules with different numbers of layers can be provided according to customer needs. Assembly is simple and easy to operate. Each sheet-like hydrogen storage alloy can be evenly contacted by the serpentine wall panels, ensuring uniform heating of the hydrogen storage alloy and avoiding thermal runaway caused by localized overheating during hydrogen release. This improves the hydrogen absorption and desorption efficiency of the hydrogen storage alloy and extends its service life.

Description

Technical fields:

[0001] This utility model relates to the field of solid hydrogen storage technology, and in particular to a serpentine wall panel storage structure of a hydrogen storage alloy. Background technology:

[0002] Currently, in the field of hydrogen solid-state batteries, hydrogen is generally stored by embedding a hydrogen storage alloy inside a hydrogen storage tank. The hydrogen storage alloy is a metal that can absorb hydrogen and form chemical bonds with it. The hydrogen storage alloy can absorb and release hydrogen according to temperature changes. The form of the hydrogen storage alloy includes flakes or powder. When absorbing or releasing hydrogen, the hydrogen storage tank needs to be heated or cooled. Currently, the hydrogen storage alloy is generally placed directly inside the hydrogen storage tank. During heating, uneven heating can occur, which can easily lead to thermal runaway caused by local overheating during the hydrogen release process. This results in uneven reaction, thermal stress concentration, premature termination of the reaction, material degradation, and other adverse effects. The hydrogen absorption and release efficiency is low, and it also affects the lifespan of the hydrogen storage alloy. There is currently no good solution to the above problems.

[0003] In summary, the aforementioned problems with existing hydrogen storage alloys during the storage process have become urgent technical challenges that need to be addressed in the industry. Utility Model Content:

[0004] To overcome the shortcomings of the prior art, this utility model provides a serpentine wall panel storage structure for hydrogen storage alloy, which solves the problem of local overheating caused by uneven heating of the hydrogen storage alloy in previous hydrogen storage cylinders.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows:

[0006] A serpentine wall panel storage structure for hydrogen storage alloy includes several storage units stacked sequentially. Each storage unit includes a base plate with a fluid channel inside. A fluid inlet and a fluid outlet are provided on one side of the base plate. Several vertically arranged serpentine wall panels are fixed on the upper surface of the base plate. Several mounting slots for mounting sheet-like hydrogen storage alloy or directly holding powdered hydrogen storage alloy are provided between adjacent serpentine wall panels. The top of the uppermost storage unit is provided with a top plate. The top plate and the base plate of each storage unit are tightened and fixed together by several long bolts.

[0007] The top plate is provided with a fluid channel, and a fluid inlet and a fluid outlet are provided on one side of the top plate.

[0008] The fluid channel includes several interconnected U-shaped channels.

[0009] The base plate, serpentine wall panel, and top plate are all made of metal.

[0010] The serpentine wall panel is welded and fixed to the base plate or integrally formed.

[0011] The mounting groove is designed to fit the shape of the sheet-like hydrogen storage alloy.

[0012] The sheet-like hydrogen storage alloy or powdered hydrogen storage alloy is in contact with the serpentine wall panels on both sides.

[0013] The ends of two adjacent serpentine panels are brought together or joined to restrict the sheet-like hydrogen storage alloy or powdered hydrogen storage alloy.

[0014] The present invention adopts the above solution and has the following advantages:

[0015] Composed of several stacked storage units, modules with different numbers of layers are available according to customer needs. They can be secured with long bolts, making assembly simple and easy to operate. Each storage unit has a fluid channel in its base plate, which can introduce a heat source or cold source to heat or cool the base plate. The serpentine wall plate fixed to the base plate can quickly conduct heat to the sheet-like or powder-like hydrogen storage alloy, and each sheet-like hydrogen storage alloy can be evenly contacted by the serpentine wall plate, so that the sheet-like or powder-like hydrogen storage alloy is heated evenly, avoiding thermal runaway caused by local overheating during hydrogen release, improving the hydrogen absorption and release efficiency of the sheet-like or powder-like hydrogen storage alloy, and extending the service life of the sheet-like or powder-like hydrogen storage alloy. Attached image description:

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention with the top plate removed.

[0018] Figure 3 for Figure 2 A top-view structural diagram.

[0019] Figure 4 This is a cross-sectional structural diagram of the base plate of this utility model.

[0020] In the diagram, 1 is the base plate, 2 is the fluid channel, 3 is the fluid inlet, 4 is the fluid outlet, 5 is the serpentine wall panel, 6 is the sheet-like hydrogen storage alloy, 7 is the mounting groove, 8 is the top plate, and 9 is the long bolt. Detailed implementation method:

[0021] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0022] like Figure 1-4As shown, a serpentine wall panel storage structure for hydrogen storage alloy includes several storage units stacked sequentially. Each storage unit includes a base plate 1 with a fluid channel 2 inside. One side of the base plate 1 has a fluid inlet 3 and a fluid outlet 4. Several vertically arranged serpentine wall panels 5 are fixed on the upper surface of the base plate 1. Several mounting slots 7 for installing sheet-like hydrogen storage alloy 6 or directly holding powdered hydrogen storage alloy are provided between adjacent serpentine wall panels 5. The top of the uppermost storage unit is provided with a top plate 8. The top plate 8 and the base plate 1 of each storage unit are tightened and fixed by several long bolts 9. The long bolts 9 can be set at the four corners of the base plate 1 and the top plate 8, and are tightened by screwing nuts to form a whole.

[0023] The top plate 8 is provided with a fluid channel 2, and a fluid inlet 3 and a fluid outlet 4 are provided on one side of the top plate 8. The top plate 8 is mainly used to cover the uppermost sheet-like hydrogen storage alloy 6 or powdered hydrogen storage alloy. The fluid channel 2 in the top plate 8 can also introduce a heat source or cold source to heat or cool the hydrogen storage alloy, thereby improving the heat exchange effect.

[0024] The fluid channel 2 includes several interconnected U-shaped channels, which greatly increases the flow path length of the fluid inside the fluid channel 2. The fluid used for cooling or heating travels for a longer time in the bottom plate 1 or top plate 8, and has more time to release or absorb heat.

[0025] The base plate 1, the serpentine wall plate 5, and the top plate 8 are all made of metal materials, which have better heat conduction effect. The fluid can quickly exchange heat with the hydrogen storage alloy through the base plate 1 and the serpentine wall plate 5.

[0026] The serpentine wall panel 5 is welded and fixed to the base plate 1 or formed as a single piece.

[0027] The mounting groove 7 is matched with the shape of the sheet-like hydrogen storage alloy 6 to prevent the sheet-like hydrogen storage alloy 6 from shaking in the mounting groove 7, ensuring stability and reliability during transportation. The shape of the sheet-like hydrogen storage alloy 6 can be various shapes such as round, elliptical, square, and rhomboid.

[0028] The sheet-like hydrogen storage alloy 6 or the powdered hydrogen storage alloy comes into contact with the serpentine wall plates 5 on both sides, which facilitates better heat exchange between the sheet-like hydrogen storage alloy 6 and the serpentine wall plates 5.

[0029] The ends of two adjacent serpentine wall plates 5 are brought together or joined to restrict the sheet-like hydrogen storage alloy 6 or the powdered hydrogen storage alloy. For the powdered hydrogen storage alloy, the ends of the two adjacent serpentine wall plates 5 are in a closed state to facilitate the wrapping of the powdered hydrogen storage alloy. For the sheet-like hydrogen storage alloy, the ends of the two adjacent serpentine wall plates 5 can also have a certain gap to limit the edge of the sheet-like hydrogen storage alloy 6 and prevent it from falling out.

[0030] Working principle:

[0031] In use, the entire assembly of this utility model is placed inside the hydrogen storage tank for easy transportation. When it is necessary to absorb or release hydrogen, the fluid from the heat source or cold source can enter the fluid channel 2 inside the base plate 1 through the fluid inlet 3, travel along the fluid channel 2, and be discharged outward from the fluid outlet 4 for circulation. The fluid in the fluid channel 2 can heat or cool the base plate 1. The serpentine wall plate 5 fixed on the base plate 1 can quickly conduct heat to the sheet hydrogen storage alloy 6 or the powder hydrogen storage alloy, and each sheet hydrogen storage alloy 6 can be evenly contacted by the serpentine wall plate 5, so that the sheet hydrogen storage alloy 6 or the powder hydrogen storage alloy is heated evenly, avoiding thermal runaway caused by local overheating during the hydrogen release process, and improving the hydrogen absorption and release efficiency of the sheet hydrogen storage alloy 6 or the powder hydrogen storage alloy.

[0032] The above specific embodiments should not be construed as limiting the scope of protection of this utility model. For those skilled in the art, any alternative improvements or modifications made to the embodiments of this utility model shall fall within the scope of protection of this utility model.

[0033] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A serpentine wall panel storage structure for hydrogen storage alloy, characterized in that: The system comprises several storage units stacked sequentially. Each storage unit includes a base plate with a fluid channel inside. The base plate has a fluid inlet and a fluid outlet on one side. Several vertically arranged serpentine wall plates are fixed on the upper surface of the base plate. Several mounting slots for installing sheet-like hydrogen storage alloys or directly holding powdered hydrogen storage alloys are provided between adjacent serpentine wall plates. The top of the uppermost storage unit is provided with a top plate. The top plate and the base plate of each storage unit are tightened and fixed together by several long bolts.

2. The serpentine wall panel storage structure of a hydrogen storage alloy according to claim 1, characterized in that: The top plate is provided with a fluid channel, and a fluid inlet and a fluid outlet are provided on one side of the top plate.

3. A serpentine wall panel storage structure for a hydrogen storage alloy according to claim 1 or 2, characterized in that: The fluid channel includes several interconnected U-shaped channels.

4. The serpentine wall panel storage structure of a hydrogen storage alloy according to claim 1, characterized in that: The base plate, serpentine wall panel, and top plate are all made of metal.

5. The serpentine wall panel storage structure of a hydrogen storage alloy according to claim 4, characterized in that: The serpentine wall panel is welded and fixed to the base plate or integrally formed.

6. The serpentine wall panel storage structure of a hydrogen storage alloy according to claim 1, characterized in that: The mounting groove is designed to fit the shape of the sheet-like hydrogen storage alloy.

7. The serpentine wall panel storage structure of a hydrogen storage alloy according to claim 1, characterized in that: The sheet-like hydrogen storage alloy or powdered hydrogen storage alloy is in contact with the serpentine wall panels on both sides.

8. The serpentine wall panel storage structure of a hydrogen storage alloy according to claim 1, characterized in that: The ends of two adjacent serpentine panels are brought together or joined to restrict the sheet-like hydrogen storage alloy or powdered hydrogen storage alloy.

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