Vacuum Break Mechanism in Superconducting Feeder System

Abstract

The invention discloses a vacuum separation mechanism in a superconducting feeder line system, which comprises a vacuum separation body, various superconducting buses, low-temperature pipeline ports, a corrugated pipe, a protection device of the corrugated pipe and a cold screen connection hot stopper, wherein the vacuum separation body consists a peripheral U-shaped neck pipe and a center separation plate which realize the vacuum environment, the superconducting buses and the low-temperature pipeline ports pass through the center separation plate, the vacuum separation body realizes the vacuum separation at both sides, the superconducting buses and the low-temperature pipeline ports are combined with the corrugated pipe and the protection device of the corrugated pipe for realizing the vacuum sealing, then, the superconducting buses and the low-temperature pipelines can freely and axially extend and contract in the designed range, and the displacement requirement of the system in the work is met. A corrugated pipe protection sleeve protects the corrugated pipe so that the corrugated pipe can normally work under the condition of twisting and bending caused through electromagnetic force. In the aspect of heat insulation performance, the heat conducting path from the room temperature to the low temperature is lengthened through the U-shaped neck pipe, the temperature gradient on the vacuum separation is optimized through the hot stopper, and the heat load of 4.2K low-temperature components in the center position of the separation is possibly reduced.

Description

[0001] technical field [0002] The invention belongs to a vacuum partition mechanism in a superconducting feeder system, in particular to a vacuum partition mechanism in a superconducting feeder system that supplies power to a superconducting magnet and is cooled at low temperature, and realizes the vacuum environment to which the superconducting magnet belongs and the superconducting feeder system isolation. [0003] Background technique [0004] Superconducting magnets, especially large superconducting magnets, have important applications in scientific research such as controllable magnetic confinement thermonuclear fusion, particle accelerators, and strong magnetic fields. Cryogenic coolant to ensure proper functioning of superconducting magnets. In the superconducting feeder system, the superconducting bus bar is the current channel, and at the same time, many cryogenic pipes supply 4.2K supercritical helium to the superconducting magnet to ensure that the superconduc...

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Problems solved by technology

Combining the above factors makes the design of this type of mechanism more difficult

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