A metal hydride hydrogen storage tank with a stress buffer structure
A stress buffer, hydride technology, applied in fixed-capacity gas storage tanks, container discharge methods, gas/liquid distribution and storage, etc., can solve problems such as damage to metal hydride hydrogen storage tanks, plastic deformation of tanks, and ruptures , to achieve the effect of avoiding excessive aggregation, avoiding running, and simple structure
Active Publication Date: 2021-06-01
GRIMAT ENG INST CO LTD
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Problems solved by technology
[0003] After the hydrogen storage alloy absorbs hydrogen, the crystal lattice will expand, and after the hydrogen is released, the lattice will shrink again. During the use of the metal hydride hydrogen storage tank, the hydrogen storage alloy will be powdered due to the repeated expansion / shrinkage of the crystal lattice. At the same time, under the action of its own gravity, the hydrogen storage alloy powder will gradually settle, causing the hydrogen storage alloy to accumulate in some parts of the hydrogen storage tank, and the excessively accumulated hydrogen storage alloy will cause damage to the tank body when it absorbs hydrogen and expands. Irreversible plastic deformation or even rupture, resulting in damage to metal hydride hydrogen storage tanks
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[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0022] Such as figure 1 The shown embodiment of the present invention is composed of a tank body 1, a hydrogen storage alloy 2, a stress buffer member 3, a separator 4, a porous material 5, a filter 6, and a valve 7; wherein, the tank body 1 is made of a tank bottom, stainless steel without The seam pipe and the head are welded in sequence, the outlet end of the upper head is provided with a filter 6, the outlet end of the head is provided with a valve 7, the hydrogen storage alloy 2 is placed in the tank body 1, and the partition 4 will store The hydrogen alloy 2 is divided into multiple layers, and the hydrogen storage alloy 2 is rare earth AB 5 Type, Titanium AB Type, Titanium AB 2 Type or titanium vanadium solid solution type hydrogen storage alloy;
[0023] The outer diameter of the partition 4 is the same as the inner diameter of the stainless steel ...
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Abstract
The invention discloses a metal hydride hydrogen storage tank with a stress buffer structure, which belongs to the field of hydrogen storage equipment. It is composed of tank body, hydrogen storage alloy, stress buffering member, separator, porous material, filter and valve; the tank body is welded sequentially by tank bottom, stainless steel seamless pipe and head, and the outlet end of the upper head A filter is provided, a valve is provided outside the outlet end of the head, the hydrogen storage alloy is placed in the tank, and the partition divides the hydrogen storage alloy into multiple layers; there are no less than three stress buffers outside the lower end of the partition A component; a porous material is provided outside the upper end surface of the partition. Under the action of the stress buffering member, the present invention can avoid the excessive accumulation of the hydrogen storage alloy in the hydrogen storage tank, and effectively improve the use safety and service life of the hydrogen storage tank; the separator is provided with a porous material, which can ensure the circulation of hydrogen Avoid the flow of metal powder between layers.
Description
technical field [0001] The invention belongs to the technical field of hydrogen storage equipment, in particular to a metal hydride hydrogen storage tank with a stress buffer structure. Background technique [0002] As a clean and efficient secondary energy source, hydrogen energy has been paid attention to and widely studied, and is considered to be one of the ideal energy sources for human beings in the future, and hydrogen storage and transportation are one of the key technologies in the process of hydrogen energy utilization. At present, there are mainly three kinds of hydrogen storage methods that have been put into practical use: high-pressure gaseous hydrogen storage, cryogenic liquid hydrogen storage tanks, and metal hydride solid-state hydrogen storage. Among them, metal hydride solid-state hydrogen storage technology uses the reaction of hydrogen and hydrogen storage alloy to realize the storage of hydrogen. Compared with other hydrogen storage methods, it has the ...
Claims
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IPC IPC(8): F17C11/00F17C13/00F17C13/04F17C13/12
CPCY02E60/32
Inventor 叶建华武媛方李志念蒋利军袁宝龙郭秀梅卢淼王树茂刘晓鹏
Owner GRIMAT ENG INST CO LTD