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A superconduct magnet based on a high-temperature superconduct circular ring piece

A superconducting magnet, high temperature superconducting technology, applied in superconducting magnets/coils, magnetic objects, electrical components, etc., can solve the problems of increasing cooling cost, power loss, immature welding process, etc., and achieve convenient manufacturing and simple structure. Effect

Inactive Publication Date: 2019-01-25
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the practical superconducting materials today adopt a strip structure, and superconducting magnets are prepared by winding the strip into a double cake or spiral structure. However, the welding process of high-temperature superconducting materials is immature, and it is impossible to realize non-impeding welding and superconducting closed loop. run
[0003] Superconducting magnets are generally excited by a power supply at room temperature, and the power supply and the superconductor are connected with a current lead. The two ends of the current lead are respectively at low temperature and room temperature, and a large amount of heat will be transmitted into the superconducting cryogenic container. The welding resistance between the superconducting wire and the superconducting wire will generate Joule heat when energized, which will cause power loss and increase cooling costs

Method used

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  • A superconduct magnet based on a high-temperature superconduct circular ring piece
  • A superconduct magnet based on a high-temperature superconduct circular ring piece
  • A superconduct magnet based on a high-temperature superconduct circular ring piece

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Experimental program
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Effect test

Embodiment approach 1

[0026] Embodiment 1: When the inner diameter of the required superconducting magnet is large and the difference between the inner and outer radii of the superconducting ring is small, the superconducting ring should be made wider on one side to ensure that the superconducting ring is cut out after the positioning hole The overall width is the same.

[0027] Firstly, according to the radial width required by the superconducting ring, one side of the superconducting ring is designed to be wider. This side is used to cut out the positioning hole for placing the magnetic flux pump coil. The size of the positioning hole is slightly larger than the outer diameter of the coil. Diameter size. According to the positions of the positioning holes, the superconducting rings are divided into three structures, namely intersecting type, tangent type and phase separation type. Then the part on the line between the center of the positioning hole and the center of the superconducting ring is c...

Embodiment approach 2

[0028] Embodiment 2: When the inner diameter of the required superconducting magnet is small and the difference between the inner and outer radii of the superconducting ring is large, a positioning hole is cut on the inner diameter side of the superconducting ring.

[0029] Firstly, according to the size required by the superconducting ring, adopt the mature existing cutting process to cut out the fixed positioning hole on the inner diameter side of the produced superconducting ring, and the size of the positioning hole is slightly larger than the outer diameter of the coil part. According to the positional relationship between the positioning hole and the inner ring of the superconducting ring, the superconducting ring is divided into three structures, that is, intersecting, tangent, and separated. Then cut the part on the line between the center of the positioning hole and the center of the circle of the superconducting ring, so that the cutting hole communicates with the ins...

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Abstract

The invention discloses a superconducting magnet based on a high-temperature superconducting circular ring piece belonging to the application field of a superconducting magnet. A superconductive magnet is formed by alternately stacked a superconducting ring sheet and an insulating sheet from bottom to top, adding a flange sheet from top to bottom, and connecting and fixing that flange sheet through an insulating tie rod. Wherein the insulating sheet is replaced by a Cu sheet with a radial notch coated with insulating paint on both sides of the insulating sheet; A magnetic flux pump is arrangein that positioning hole aft assembly, and the superconducting magnet is excited by the magnetic flux pump without the current lead and the direct current power supply. The superconducting magnet hasthe advantage of simple structure, compact structure, detachability, easy insulation treatment and simple operation, and can realize the closed-loop operation of the superconducting magnet.

Description

technical field [0001] The invention belongs to the application field of superconducting magnets, in particular to a superconducting magnet based on a high-temperature superconducting circular ring piece. Background technique [0002] Superconducting magnets have many advantages that conventional magnets cannot match, such as high magnetic field strength, low power consumption, small size, and high stability. Most of the practical superconducting materials today adopt a strip structure, and superconducting magnets are prepared by winding the strip into a double cake or spiral structure. However, the welding process of high-temperature superconducting materials is immature, and it is impossible to realize non-impeding welding and superconducting closed loop. run. [0003] Superconducting magnets are generally excited by a power supply at room temperature, and the power supply and the superconductor are connected with a current lead. The two ends of the current lead are respe...

Claims

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Application Information

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IPC IPC(8): H01F6/00
CPCH01F6/00
Inventor 胡一丹王银顺陈浩刘明闯皮伟李继春夏芳敏
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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