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Superconducting switch for conduction cooling and superconducting magnet device thereof

A superconducting switch, conduction cooling technology, applied in superconducting magnets/coils, magnetic objects, electronic switches, etc., can solve the problem of low cooling efficiency of superconducting switches, achieve high real-time and sensitivity, avoid delay, reduce The effect of consumption

Inactive Publication Date: 2019-07-30
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a superconducting switch for conduction cooling and its superconducting magnet device, solve the problem of low cooling efficiency of the superconducting switch for conduction cooling in the prior art, superconducting Real-time detection of switch and main superconducting coil cooling state, and conduction cooling superconducting switch used for coil charging and discharging on conduction cooling superconducting magnet and coil protection

Method used

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  • Superconducting switch for conduction cooling and superconducting magnet device thereof
  • Superconducting switch for conduction cooling and superconducting magnet device thereof
  • Superconducting switch for conduction cooling and superconducting magnet device thereof

Examples

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Effect test

Embodiment 1

[0030] The first embodiment is applicable to the scene of a superconducting magnet without liquid helium and helium gas circulating in the pipeline, which can make the superconducting magnet reach thermal equilibrium more uniformly and quickly.

[0031] as attached figure 1 and 2 As shown, a superconducting switch for conduction cooling includes a switch frame 1, a switch superconducting coil 2 wound on the switch frame 1, a switch cooling coil 3 and a switch heating coil 4, and the surrounding The copper ring hoop 5 outside the outer coil and the flexible copper connection 6 connected to the switch skeleton 1 .

[0032]The switch frame 1 is integrally processed from copper rods or copper tubes (followed by aluminum rods or aluminum tubes), and there are at least two inlet and outlet line gaps 8 and several threaded holes 9 on the flanges at both ends; A wire column 7 is arranged in the hole 9 .

[0033] The switching superconducting coil 2 and the switching cooling coil 3 ...

Embodiment 2

[0036] The second embodiment is applicable to the scene of a superconducting magnet where a small amount of liquid helium and helium gas are circulated in the pipeline so that the cold energy is diffused to achieve the purpose of conduction cooling, which can make the superconducting magnet reach thermal equilibrium more uniformly and quickly.

[0037] A superconducting switch for conduction cooling. On the basis of the superconducting switch shown in Embodiment 1, the annular hoop 5 and the flexible copper connection 6 are removed, and only the switch skeleton 1 and the switch skeleton 1 are wound On-off superconducting coil 2, on-off cooling coil 3, on-off heating coil 4.

[0038] The structural form of the switch skeleton 1, the arrangement of the switch superconducting coil 2, the switch cooling coil 3 and the switch heating coil 4 are all the same as those in Embodiment 1, and the switch superconducting coil 2 and the switch heating coil 4 The material selection is also t...

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Abstract

The invention discloses a superconducting switch for conduction cooling and a superconducting magnet device thereof. The superconducting switch comprises a switch framework, and a switch superconducting coil, a switch cold conduction coil and a switch heating coil which are wound on the switch framework, wherein the switch superconducting coil and the switch cold conducting coil are wound at intervals, a copper cable and a current lead are led out from the two ends of the switch superconducting coil respectively to form a four-wire method resistance measuring circuit, and whether the superconducting switch enters a quench or non-quench state is judged by detecting the coil resistance. The two ends of the switch cold conduction coil are thermally connected with a cold head of the superconducting magnet device, the switch heating coil is wound by being attached to the switch superconducting coil, and the copper cables are led out from the two ends of the switch heating coil and are usedfor conducting a current to heat the switch superconducting coil. According to the invention, the problem of low cooling efficiency of the conduction cooling superconducting switch, the problem of thereal-time detection of the cooling states of the superconducting switch and the main superconducting coil, and the problem of coil charging and discharging and coil protection of the conduction cooling superconducting switch used for conduction cooling of the superconducting magnet are solved.

Description

technical field [0001] The invention relates to a superconducting magnet, in particular to a superconducting switch for conduction cooling and a superconducting magnet device thereof. Background technique [0002] With the development of superconducting technology, the application of superconducting magnets in high-energy physics, medical treatment, military industry, scientific research and other fields is becoming more and more common, and there are more and more types. Among them, the most common one is a superconducting magnet that uses liquid helium, liquid nitrogen and other coolants to cool the coils in the magnet to a superconducting state. This type of superconducting magnet includes a superconducting switch that is directly cooled by the coolant, but this type of superconducting magnet Often due to the rarity and danger of the coolant, it has high operating costs and safety risks. In addition, the preparation, storage, and transportation of the coolant require spec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/92H01F6/04H01L39/16H10N60/30
CPCH03K17/92H01F6/04H10N60/30
Inventor 金建勋李雁帅贾敬朝
Owner TIANJIN UNIV
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