Solid hydrogen storage tank

Abstract

The invention belongs to the technical field of hydrogen storage, and particularly relates to a solid hydrogen storage tank. The tank comprises a tank body, hydrogen storage bed body elements, air guide pipes, a filter plate and a valve. The plurality of hydrogen storage bed elements are stacked inside the tank body, and each hydrogen storage bed element comprises a hydrogen storage material layer, a heat conducting layer and a flexible wrapping layer; longitudinal through holes are formed in the hydrogen storage bed body elements, and the air guiding pipes are placed in the through holes; andthe heat conducting layers and the flexible wrapping layers are made of a metal material so as to enhance heat transferring of a hydrogen storage bed and stabilize the bed. The solid hydrogen storagetank is simple in structure and easy to manufacture and machine, the adopted hydrogen storage bed body element structure can improve the heat transfer performance of the hydrogen storage bed and accelerate the hydrogen filling/discharging speed, meanwhile, hydrogen storage material powder is prevented from migrating, so that uniform distribution of the hydrogen storage material powder in the bedis ensured, stress concentration generated on the tank body due to hydrogen absorption expansion of the hydrogen storage material is avoided, and the service life and safety of the solid hydrogen storage tank are prolonged and improved.

Description

technical field [0001] The invention relates to the technical field of hydrogen storage, in particular to a solid hydrogen storage tank. Background technique [0002] As a clean and efficient secondary energy source, hydrogen energy has been highly valued and extensively researched. Hydrogen energy storage and transportation is a restrictive link in the hydrogen energy industry chain. Improving the efficiency of hydrogen energy storage and transportation and reducing the cost of hydrogen energy storage and transportation are the key to hydrogen energy storage and transportation. The development focus of energy storage and transportation technology. At present, there are mainly three kinds of hydrogen storage methods that have been put into practical use: high-pressure gaseous hydrogen storage, low-temperature liquid hydrogen storage tanks, and solid-state hydrogen storage based on hydrogen storage materials. Solid-state hydrogen storage technology uses the reaction between ...

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Problems solved by technology

[0009] CN102242861A discloses a hydrogen storage alloy tank, which is equipped with a tubular heat exchanger to improve the heat exchange efficiency of the system, and fills the hydrogen storage alloy powder in a porous or fiber structure to avoid hardening and stress caused by alloy powder aggregation Concentrated, although the method uses an annular porous mass transfer module, the porous or fibrous structure used is not effective for improving the heat transfer performance of the hydrogen storage material bed, and the heat exchanger is set complicated, making the annular porous mass transfer module Difficult to fill evenly

[0010] CN107859871A and CN206329913U disclose the use of fine-diameter partitions as the main carrier for storing hydrogen-storage alloy powders, and fix the alloy powders in a small space to avoid the accumulation of alloy powders, but the thickness of hydrogen-storage alloy powders is far greater than that of small-diameter partitions. The thickness of the mesh, when the hydrogen storage alloy powder is added to the middle of the two fine-diameter separators, there will still inevitably be uneven distribution, which will cause stress concentration in the tank, thus affecting the life and safety of the tank

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