Quick-open copper-lined high-pressure hydrogen storage vessel

Abstract

The invention relates to hydrogen energy storage equipment and aims to provide a quick-open copper-lined high-pressure hydrogen storage container. It includes a copper lining arranged in a hollow tubular outer cylinder, and the two are in clearance fit; at least one end of the outer cylinder is provided with a quick-opening head, which is cylindrical and is set in the outer cylinder through a threaded connection; the shaft of the quick-opening head There is a through hole to the center, and the end of the lining is sleeved in the through hole; the assembly composed of flange-bolts fixes the end joint of the connecting pipe on the quick-opening head. The end joint of the connecting pipe is tubular, and the middle part has A radial boss for positioning and load transfer, one side of which extends into the end of the inner liner and the other side is used for connecting the external hydrogen delivery pipe. The copper lining in the present invention can effectively block the contact between high-pressure hydrogen gas and the outer cylinder, and avoid performance degradation of the outer cylinder due to high-pressure hydrogen embrittlement. The strength of the outer cylinder will not be limited, which is convenient for the lightweight design of the container. Due to the adoption of the quick-opening head, the outer cylinder does not need to be formed by spinning and is easy to be heat-treated, so that the hydrogen storage pressure of the container is high and the volume is large.

Description

technical field [0001] The invention belongs to the field of hydrogen energy storage equipment development, in particular to a quick-open copper-lined high-pressure hydrogen storage container. Background technique [0002] Hydrogen storage is one of the core links in the hydrogen energy industry chain. High-pressure hydrogen storage is currently the mainstream hydrogen storage method for hydrogen fuel cell vehicles, long-tube trailers, and hydrogen refueling stations. High-pressure hydrogen storage containers are the carriers for high-pressure hydrogen storage. Different from conventional pressure vessels, hydrogen storage vessels may face degradation of material properties caused by high-pressure hydrogen embrittlement in a high-pressure hydrogen environment, which poses a great threat to the safe operation of the vessel. At present, the types of high-pressure hydrogen storage vessels mainly include large-volume seamless hydrogen storage vessels, austenitic stainless steel...

AI Technical Summary

Problems solved by technology

[0006] In summary, for existing high-pressure hydrogen storage containers, their anti-hydrogen embrittlement performance, service performance (storage pressure, storage volume, etc.), manufacturing cost, etc. often cannot meet the requirements at the same time. Based on this situation, the content of the present invention is proposed

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