Metal low-temperature film storage tank for liquid hydrogen storage

Abstract

The invention discloses a metal low-temperature film storage tank for liquid hydrogen storage. The storage tank comprises an outer tank (1), an inner tank (2), an inner and outer tank high-vacuum interlayer (3), a multi-layer winding layer (4), a secondary insulation cold insulation layer (5), a secondary shielding layer (6), a main insulation cold insulation layer (7) and a main shielding layer (8). An insulating support block (9) is arranged between the storage tank outer tank (1) and the storage tank inner tank (2). Two layers of metal films and a high-vacuum heat insulation tank are used as the design basis, an independent film shielding layer liquid containing system is achieved, the insulation and cold insulation performance of a traditional film type storage tank is improved in a high-vacuum heat insulation mode, the evaporation rate is further reduced, and the storage time of liquid cargo hydrogen in the storage tank is prolonged; the film shielding layer is used for containing liquid, so that requirements on materials of the inner tank and the outer tank and construction requirements are further reduced; and the safety performance of hydrogen storage is improved through double-layer shielding and three-layer protection of the inner tank, the shielding completeness under sudden accidents is guaranteed through the flexibility of the thin film, and the accident risk of leakage of a large amount of liquid hydrogen caused by breakage of the inner tank and the outer tank is reduced. The storage tank can be used for storage and transportation of a vehicle-mounted container type liquid hydrogen storage tank, can also be used for a land large vertical liquid hydrogen storage tank, can also be used for storage and transportation of a liquid hydrogen ship fuel cabin and a liquid hydrogen transport ship liquid cargo cabin, and is a brand-new liquid hydrogen film type storage tank which is wider in application, safer and more environmentally friendly.

Description

technical field [0001] The invention relates to the technical field of refrigerated liquefied gas-liquid hydrogen (LH2) low-temperature storage devices, in particular to a metal low-temperature film storage tank for liquid hydrogen storage. Background technique [0002] As a new energy source, hydrogen has the advantages of high efficiency, cleanliness, pollution-free and sustainable. With the rapid development of my country's economy and the continuous improvement of environmental governance requirements, hydrogen is currently one of the most promising clean energy sources. [0003] As the liquefied state of hydrogen, liquid hydrogen has long been used as a fuel for aerospace power systems and has been widely used in aerospace and military. With the influence of domestic development trends and the guidance of policies, the use of liquid hydrogen is increasingly approaching the civilian market. Liquid hydrogen is a cryogenic hydrogen storage technology. It is cryogenically ...

AI Technical Summary

Problems solved by technology

However, due to the danger and volatility of hydrogen itself, its transportation and storage are limited, so how to better and safer store and transport liquid hydrogen is a key direction of current research

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