High-temperature superconducting cable with composite electromagnetic shielding layer

A high-temperature superconducting and composite electromagnetic technology, applied in the field of superconductivity, can solve the problems of reducing the flow capacity of the internal flow layer and affecting the flow effect, so as to achieve low AC loss, low anisotropy, and reduce AC loss. Effect

Active Publication Date: 2018-05-15
BEIJING EASTFORCE SUPERCONDUCTING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This will reduce the flow capacity of the inner flow layer and affect its flow effect

Method used

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  • High-temperature superconducting cable with composite electromagnetic shielding layer
  • High-temperature superconducting cable with composite electromagnetic shielding layer
  • High-temperature superconducting cable with composite electromagnetic shielding layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Among them, the innermost layer is a metal tube, which mainly plays the role of support and cooling, such as figure 1 As shown, the metal frame 2 mainly plays the role of cable support, and the metal frame is designed as a bellows structure, which is convenient to be bent and wound into a magnet; the metal frame is solid or hollow; the metal frame is a solid body composed of multiple turns of copper wire, a metal Bellows, hollow copper tube or hollow aluminum tube; the hollow metal frame is preferred as the internal cavity 1, the inside of the hollow frame can be used as a cooling coal passage, and metal powder can be filled inside to play a strengthening role. Such as figure 1 The shown insulating layer 4 is tightly attached to the outer peripheral surface of the superconducting layer 3; the insulating layer can insulate the superconducting layer and the ferromagnetic layer from each other, and the insulating structure can adopt a sleeve or an insulating tape spirally ...

Embodiment 2

[0037] In Embodiment 1, a composite structure in which the inner layer is composed of the superconducting layer 3 and the outer layer is composed of the ferromagnetic layer 5 is adopted. In embodiment 2, a superconducting, ferromagnetic, superconducting, ferromagnetic... staggered composite superposition structure is used, such as Figure 7 shown.

Embodiment 3

[0039] In this embodiment, the superconducting layer 3 and the ferromagnetic layer 5 are superimposed on each other, and the same effect can be achieved, such as Figure 8 shown.

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Abstract

The invention discloses a high-temperature superconducting cable with a composite electromagnetic shielding layer and belongs to the superconducting technological field. The structure of the high-temperature superconducting cable is composed of an internal cavity, a metal frame, a superconducting layer, an insulating layer, a ferromagnetic layer, and a metal armoring layer which are distributed from inside to outside sequentially. The cable of the present invention is characterized in that the inner layer superconductor and the outer ferromagnetic layer are matched with each other to form a magnetic silencing structure, and therefore, the cable can greatly increase current carrying capacity compared to a single wire; and the cable can substantially decrease alternating current loss and reduce the anisotropy of strips. The cable has the advantages of low anisotropy, low alternating current loss and high current carrying capacity.

Description

technical field [0001] The invention belongs to the field of superconducting technology, in particular to a high-temperature superconducting cable with a composite electromagnetic shielding layer. Background technique [0002] HTS magnet cables are the basic unit for winding large magnets. Traditionally, there are many problems in using a single strip to wind a magnet. The most important problem is that the number of turns is large, the inductance is large, and the anisotropy is strong, and the AC loss is high. Therefore, a plurality of high-temperature superconducting tapes are combined to form a cable, and the high-temperature superconducting magnet is wound with the cable, the number of turns of the magnet will be greatly reduced, and the inductance will also be greatly reduced. This cable structure has been widely used in the field of large-scale low-temperature superconducting magnets. There have been precedents for similar cable designs for high-temperature supercond...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B12/00H01B7/17
CPCH01B7/17H01B12/00Y02E40/60
Inventor 高琦岳宇宾
Owner BEIJING EASTFORCE SUPERCONDUCTING TECH
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