High-vacuum multi-layer heat-insulating deep-cooling double-shell spherical storage tank

Abstract

The invention relates to a high-vacuum multi-layer heat-insulating deep-cooling double-shell spherical storage tank, which comprises an outer spherical tank and an inner spherical tank, wherein the inner spherical tank is placed in the outer spherical tank; the inner spherical tank is supported in the outer spherical tank through an upper fixed supporting member which is arranged on the upper part of the inner spherical tank and a lower fixed supporting member which is arranged on the lower part of the inner spherical tank; a laminated inner supporting member is arranged between the inner spherical tank and the outer spherical tank; a heat-insulating material is coated on an outer surface of the inner spherical tank; a reinforcing plate is arranged on the outer surface of the outer spherical tank; the reinforcing plate is welded with an upper supporting column through an equator tangential structure; the upper supporting column is fixedly connected with a lower supporting column through the heat-insulating material; and a pulling rod is connected between the upper supporting column and the lower supporting column. By adoption of a mixed spherical shell structure, the supporting columns are welded on the reinforcing plate on the outer surface of the outer spherical tank through the equator tangential structure, so the carrying capacity of the supporting columns is ensured; and a high-vacuum multi-layer heat-insulating cold-insulating structure is adopted between the inner spherical tank and the outer spherical tank, and the inner supporting member has a laminated supporting structure, so the problem of telescoping of the supporting member caused by temperature change is solved, and the light weight of the storage tank and volume maximization are realized.

Description

technical field [0001] The invention relates to a cryogenic double-shell spherical storage tank, in particular to a cryogenic double-shell spherical storage tank of a high-vacuum multi-layer heat insulation type. Background technique [0002] Cryogenic double-shell spherical storage tanks are mainly used to store cryogenic liquid media (liquid hydrogen, liquid oxygen, liquid argon and liquid nitrogen, etc.), and are key equipment for cryogenic systems. At present, there are mainly two types of storage equipment for low-temperature liquid media in China: vacuum insulation and ordinary stack insulation. The former has a small volume for the convenience of transportation. As the volume increases, it cannot guarantee a high vacuum degree, which affects its heat insulation and cold preservation effect, so it is generally less than 100m 3 ;The volume of the latter is larger, at 500m 3 -10000m 3 , more than 5000m 3 Vertical cylindrical atmospheric storage tanks are mostly used,...

AI Technical Summary

Problems solved by technology

In order to achieve a satisfactory heat insulation effect, the vacuum layer is thicker, usually the thickness of the vacuum layer is 250-400mm, so the metal materials used will increase and the cost will be increased; Deposited, so that the thermal insulation performance of the spherical tank is more affected

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