Vertical Cryogenic Storage Tank with Sliding Collar Support Mechanism

Abstract

The invention discloses a vertical low-temperature storage tank with a sliding collar support mechanism, which comprises a tank body and outriggers, the outriggers are arranged at the lower part of the tank body, and the tank body includes an outer container, an inner container, a reinforcement ring, and a support tube and a sliding collar support mechanism, the inner container is arranged inside the outer container, and a closed interlayer space is formed between the outer container and the inner container, the reinforcing ring and the sliding collar support mechanism are both arranged in the interlayer space; the support pipe is arranged at the lower part of the interlayer space, The sliding collar supporting mechanism is arranged on the upper part of the interlayer space, and the outside of the sliding collar supporting mechanism is connected with the reinforcing ring. The structure of the present invention is safe and reliable, less difficult to manufacture and install, simple and convenient; the force is uniform, the number of horizontal pull belts used is reduced, the heat leakage is reduced, and the heat insulation performance of the low-temperature storage tank is improved. When the inner container shrinks when the temperature drops , will not be constrained by the sliding collar, eliminates the thermal stress caused by temperature changes, improves the safety of the storage tank, and prolongs the service life of the storage tank.

Description

technical field [0001] The invention relates to a vertical cryogenic storage tank, in particular to a vertical cryogenic storage tank adopting a sliding collar support structure, belonging to the technical field of cryogenic engineering. Background technique [0002] Liquids such as liquid oxygen, nitrogen, argon, and LNG are at extremely low temperatures, and there is a large temperature difference of more than 200°C from the ambient temperature. When storing these low-temperature liquids, it is necessary to reduce the intrusion of external heat as much as possible, which will cause the evaporation loss of the low-temperature liquid. Liquid equipment places extremely high demands. In engineering, double-layer tanks are usually used to store cryogenic liquids. Double-layer tanks are composed of inner and outer double-layer containers, and the interlayer space between the inner and outer containers is filled with thermal insulation materials. The support structure between th...

AI Technical Summary

Problems solved by technology

This support structure also has significant disadvantages: on the one hand, when installing the radial support tube, it is necessary to open holes in the outer container, and special tooling equipment is required to complete the installation, which increases the time and difficulty of manufacturing; on the other hand, the radial support tube The support tube is expensive and the product quality is unstable

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