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High-temperature superconduction cable for strong magnetic field and fusion reactor tokamak superconduction magnet

A tokamak and high-temperature superconducting technology, applied in the field of high-temperature superconducting cables, can solve problems such as limiting the current carrying capacity of superconducting materials, and achieve the effects of improving current transmission capacity, improving mechanical strength, and solving anisotropy

Inactive Publication Date: 2019-12-20
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the anisotropic problem of high-temperature superconducting tapes, the current-carrying capacity of superconducting materials under vertical fields is limited

Method used

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  • High-temperature superconduction cable for strong magnetic field and fusion reactor tokamak superconduction magnet
  • High-temperature superconduction cable for strong magnetic field and fusion reactor tokamak superconduction magnet

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Embodiment Construction

[0018] Such as figure 1 , 2 As shown, a high-temperature superconducting cable for a superconducting magnet of a strong magnetic field and a fusion reactor Tokamak includes a support structure 2, and a plurality of grooves 8 are axially opened on the support structure 2, and each groove The bottom and side walls of the groove 8 are provided with a semicircular low-temperature cooling groove 4, and a high-temperature superconducting strip stack 5 is welded and fixed in each groove 8 by a heat-conducting and conductive solder 7, and the high-temperature superconducting strip stack 5 A filling substance 6 is arranged above to fix the strip stack 5 , a central cooling hole 3 is opened in the center of the support structure 2 , and a protective shell 1 is sheathed on the outside of the support structure 2 . The cooling medium liquid helium, liquid neon or liquid nitrogen flows through the central cooling hole and the low-temperature cooling groove 4 to perform direct and heat tran...

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Abstract

The invention discloses a high-temperature superconduction cable for strong magnetic field and fusion reactor tokamak superconduction magnet. The high-temperature superconduction cable comprises a support structure, wherein a plurality of grooves are formed in the support structures in an axial direction, semi-circular low-temperature cooling grooves are formed in the bottom and a side wall of each groove, a high-temperature superconduction strip stack is fixedly welded with the interior of each groove by a heat conduction and electric conduction welding material, a filler is arranged on the high-temperature superconduction strip stack and is used for fixing the strip stack, a central cooling hole is formed in the center of the support structure, and a protection shell sleeves an outer side of the support structure. Two cooling modes of conduction cooling and direct cooling are employed. The cable employs a spirally-twisting high-temperature superconduction stack to eliminate the anisotropy of the high-temperature superconduction strip, the mechanical property of the cable is improved, and the stability of the cable under a large-current and complicated strong magnetic field fusionenvironment is improved.

Description

technical field [0001] The invention relates to the technical field of high-temperature superconducting cables, in particular to a high-temperature superconducting cable used for superconducting magnets in strong magnetic fields and fusion reactor Tokamaks. Background technique [0002] Nuclear fusion energy is expected to become one of the main ways to solve the human energy crisis due to its advantages of safety, cleanliness, high efficiency and abundant raw materials. In recent years, the tokamak device has been favored by the magnetic confinement nuclear fusion community because it can generate higher-performance high-temperature plasma. In order to generate GW and higher power fusion energy in the future, the confinement magnetic field in the plasma center of the tokamak device needs to be continuously improved; while the traditional low-temperature superconducting cable is limited by the upper critical magnetic field and temperature, and the conductor performance has r...

Claims

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Application Information

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IPC IPC(8): H01B12/04G21B1/05
CPCG21B1/057H01B12/04Y02E30/10Y02E40/60
Inventor 任勇王东全刘小刚李君君王兆亮高翔
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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