Low-heat-leakage and low-temperature container

Abstract

The invention discloses a low-heat-leakage and low-temperature container. The low-heat-leakage and low-temperature container comprises a basin body ground support, a container body and a sealing cover; the container body comprises a cylindrical inner cylinder and a cylindrical outer cylinder, wherein the upper part of the cylinder wall of the cylindrical inner cylinder is bent outwards to form a fly edge, the cylindrical inner cylinder is bonded with the cylindrical outer cylinder through the flash edge to form a double-layer vacuum cavity sealing space; the sealing cover comprises a lower pot body and an upper pot body, wherein an upper opening flange is arranged at the upper end of the upper pot body, and the lower pot body and the upper pot body are bonded with each other to form the double-layer vacuum cavity sealing space; and the container body is arranged on the bottom surface of the basin body ground support, the sealing cover is in contact with the container body and is arranged inside the cylindrical inner cylinder, and a supporting platform is arranged on the inner bottom surface of the cylindrical inner cylinder. According to the low-heat-leakage and low-temperature container, the basin body ground support, the container body, the sealing cover and the supporting platform are made of insulating non-metal materials so that eddy current loss is not prone to be generated, the double-layer vacuum cavity structure of the sealing cover and the container body can reduce the heat leakage generated during use, a plurality of layers of anti-radiation screens in the sealing cover can reduce the radiation heat of outside, so that the eddy current loss under the alternating-current magnetic field condition is reduced.

Description

technical field [0001] The present application relates to the field of superconducting AC loss, in particular to a double-layer, vacuum-structured cryogenic container with low heat leakage. Background technique [0002] Superconducting technology is a high-tech with strategic significance in the 21st century. Superconducting is a promising and challenging research field in the electric power industry. It will solve many problems for modern electric power system with a new technology. In real life, many electrical devices use AC power, and superconducting devices will have AC losses in this case. [0003] A cryogenic vessel is a device widely used in superconducting technology. A cryogenic vessel is usually composed of a vessel body, a head, a cover and a flange. Most of the cryogenic vessels in the prior art are made of metal or single-layer non-metallic materials. Metal or single-layer non-metallic superconducting materials have superconducting phenomenon at low temperatu...

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Problems solved by technology

[0005] This application provides a low-temperature container with low heat leakage, which is made of double-layer, insulating non-metallic materials to solve the problems of large heat leakage, high absorption of radiant heat and eddy current loss in the AC magnetic field during use

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