A superconducting magnet based on a racetrack-shaped superconducting ring
A technology of superconducting magnets and superconducting rings, which is applied in the direction of superconducting magnets/coils, magnetic objects, electrical components, etc., and can solve problems such as high operating costs, immature welding technology, and inability to realize closed-loop operation of superconductors
Inactive Publication Date: 2020-10-27
NORTH CHINA ELECTRIC POWER UNIV (BAODING) +1
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Problems solved by technology
Direct power supply drive to supply current to superconducting magnets has the following disadvantages: First, due to the immature welding technology of high-temperature superconducting materials, barrier-free welding cannot be achieved, resulting in the inability to realize closed-loop operation of superconductors; secondly, power leads In the environment of room temperature and low temperature at the same time, it is equivalent to a heat leakage source, with large heat leakage power and high operating cost
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[0021] The present invention proposes a superconducting magnet based on a racetrack-shaped superconducting ring, and the present invention will be described in detail below with reference to the accompanying drawings.
[0022] figure 1 Shown is a schematic plan view of a single racetrack-shaped superconducting ring, figure 2 for its stereogram. Using the existing superconducting ring manufacturing process, cut the superconducting material with a thickness of d into a length L, and the radius of the circle at both ends is R 1 The track-shaped superconducting ring sheet 8, in the inner center of the superconducting ring sheet 8, cut out a length of L and a width of R 3 Rectangular hole; Cut two symmetrical holes with radius R at both ends of the rectangular hole 3 The semicircle arc; and in the middle of the outer surface of an L side of the rectangular hole of the racetrack-type superconducting ring, cut out a radius R that intersects with the side surface 2 The semicircul...
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The invention discloses a runway superconduction ring piece-based superconduction magnet in the technical field of superconduction magnet application. In the superconduction magnet, a runway superconduction ring piece with a heating piece and an insulation piece are stacked to form a basis unit, the insulation piece of the basis unit is stacked on the superconduction ring piece of a next basis unit, thus, a plurality of basis units are sequentially stacked to form a superconduction magnet main body, and the assembled superconduction magnet main body is assembled and fixed by a fixed device. Excitation is performed by a flux pump, a power lead is not needed, welding is not needed, a leakage heat source and a welding resistor are reduced, and the superconduction magnet is convenient to fabricate and assemble, has the advantages of compact structure and the like and is simple to disassemble and convenient to operate.
Description
technical field [0001] The invention belongs to the field of superconducting magnet research, and proposes a superconducting magnet based on racetrack-shaped superconducting ring slices. Background technique [0002] Superconducting magnet technology has been applied on a large scale, ranging from nuclear magnetic resonance imaging in the medical field to maglev trains in railway transportation. One of the important applications is superconducting strong magnetic field technology, which uses the zero resistance of superconducting materials to apply excitation current to superconducting magnets to generate strong magnetic fields. The research and application of strong magnetic fields has far-reaching significance. [0003] At present, there are mainly two ways of applying current to superconducting magnets: direct power supply driving and magnetic field induction. Direct power supply drive to supply current to superconducting magnets has the following disadvantages: First, d...
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IPC IPC(8): H01F6/00
CPCH01F6/006
Inventor 康强强王银顺李继春夏芳敏皮伟
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)