Vertical low-temperature storage tank having slide lantern ring support mechanism

Abstract

The invention discloses a vertical low-temperature storage tank having a slide lantern ring support mechanism. The storage tank comprises a tank body and support legs, wherein the support legs are arranged at the lower part of the tank body; the tank body comprises an outer container, an inner container, reinforcing rings, support pipes and the slide lantern ring support mechanism; the inner container is arranged in the outer container; a closed interlayer space is formed between the outer container and the inner container; the reinforcing rings and the slide lantern ring support mechanism are both arranged in the interlayer space; the support pipes are arranged at the lower part of the interlayer space; the slide lantern ring support mechanism is arranged at the upper part of the interlayer space; and the external of the slide lantern ring support mechanism is connected with the reinforcing rings. The storage tank is safe and reliable in structure, is low in manufacturing and installation difficulty, is simple and convenient, is uniform in stress, decreases the use number of transverse drawstrings, reduces the heat leakage, and improves the heat insulating property; and when the temperature of the inner container is reduced to generate the shrinkage, the shrinkage is not restricted by a slide lantern ring, the thermal stress generated by the temperature change is eliminated, the safety of the storage tank is improved, and the service life of the storage tank is prolonged.

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

Images