Container containing superconductive devices

Abstract

The invention discloses a container containing superconductive devices. A vacuum cavity is formed between a circular outer cylinder and an inner cylinder. A multi-layer heat-insulation cold screen is formed by alternating insulated latticed metal coated foil and non-metal low-heat-conduction net-shaped blocking layers and are attached to the annular outer surface and the bottom of the circular inner cylinder. A sealing cover comprises a circular plate-shaped cover body and a circular hollow groove fixed to the position below the circular plate-shaped cover body. The upper end of the circular inner cylinder is covered with the sealing cover in a sealed manner. The container further comprises multiple channels. The upper ends of the channels penetrate out of first open holes in the circular cover body. The lower ends of the channels are matched with second open holes in the bottom face of a circular cavity. The container of the structure is used for containing the superconductive devices, and the low-temperature thermal load of a cooling medium in the container can be lowered, so that the superconductive devices can stably work.

Description

technical field [0001] The invention relates to the technical field of superconductor applications, in particular to a container for holding superconducting devices. Background technique [0002] The application potential of superconducting technology in the field of electric power and communication is huge, and the environment of superconducting devices is very harsh when applied. The superconducting device needs to be placed in a sealed container with a cooling medium, such as liquid nitrogen at -196°C, and then placed in a high-temperature cooling oil at 50°C. When the external is an unsteady magnetic field, if a metal container is used, the eddy current loss will generate a lot of heat, which will increase the temperature of the cooling medium, that is to say, an unsuitable container will cause a large low-temperature heat load of the cooling medium, resulting The conductor is not working properly. [0003] And more importantly, in the use of superconducting devices, d...

AI Technical Summary

Problems solved by technology

When the external is an unsteady magnetic field, if a metal container is used, the eddy current loss will generate a lot of heat, which will increase the temperature of the cooling medium, that is to say, an unsuitable container will cause a large low-temperature heat load of the cooling medium, resulting Conductors do not work properly

[0003] And more importantly, in the use of superconducting devices, due to the huge temperature difference, the sealing of the container is very high, otherwise the high-temperature cooling oil outside the container will enter the container, which will definitely cause the superconducting device to fail to work normally.

At present, the requirements for larger diameters, such as good sealing of containers larger than one meter, have not yet been achieved

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