Vertical cryogenic container

Abstract

The invention provides a vertical cryogenic container which comprises an outer tank, an inner container arranged inside the outer tank and a supporting structure for connecting the top of the inner container with the outer tank. The supporting structure comprises an outer tank connection unit, an inner container connection unit and a supporting pipe. The outer tank connection unit comprises an outer tank connection pipe, a cover plate arranged on the top of the outer tank connection pipe, a heat insulation block arranged inside the outer tank connection pipe and a fixing part for fixing the heat insulation block into the outer tank connection pipe. The outer wall of the outer tank connection pipe is fixedly connected with the outer tank, and the cover plate is protruded out of the outer tank. The inner container connection unit is opposite to the outer tank connection unit and fixedly connected to the top of the inner container. The lower end of the supporting pipe is fixedly connected with the inner container connection unit, the upper end of the supporting pipe penetrates in the heat insulation block, and a gap is formed between the upper end face of the supporting pipe and the cover plate. In the vertical cryogenic container, stable support is formed between the outer tank and the inner container through the supporting pipe, meanwhile, the supporting pipe makes no direct contact with the outer tank, heat transferred from the outside world to the inner container is effectively reduced, and the good heat insulation performance inside the container is ensured.

Description

technical field [0001] The invention relates to low-temperature storage and transportation equipment, in particular to a vertical low-temperature container. Background technique [0002] In the current vertical low-temperature container, the inner tank and the outer tank are generally connected by a steel pipe hanging support structure at the top. This connection structure has the advantages of safety and reliability, simple and easy manufacturing process, convenient use and maintenance, and mature technology. However, the outer tank and the inner tank are directly connected by steel pipes, so that the outer tank can directly transmit heat to the inner tank through the steel pipe hanging support structure, and the metal has a higher thermal conductivity, which speeds up the heat transfer rate from the outer tank to the inner tank. . According to calculations, the heat leakage of the steel pipe suspension support structure accounts for about 16% of the total heat leakage of...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that in the vertical cryogenic container of the prior art, the outer tank is in direct contact with the inner container through the steel pipe support structure, and heat is transmitted to the inner container, resulting in poor thermal insulation performance of the vertical cryogenic container

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