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Super-conducting cable

A superconducting cable and cable technology, applied in superconducting devices, superconducting/high-conducting conductors, usage of superconducting elements, etc., can solve problems such as intrusive heat

Inactive Publication Date: 2007-11-14
SUMITOMO ELECTRIC IND LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the heat insulating element comes into contact with the inner and outer pipes in this way, the heat from the outside is easily conducted from the outer pipe to the inner pipe via the heat insulating element, causing a problem of increased intrusive heat

Method used

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  • Super-conducting cable

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Experimental program
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Effect test

Embodiment Construction

[0050]

Embodiments of the superconducting cable according to the present invention will be described below. Fig. 1 is a sectional view showing the appearance of both ends of a superconducting cable according to the present invention.

[0051]

[overall structure]

The superconducting cable 1 used in the embodiment includes a single-core cable core 3 inside a heat insulating tube 2, and is used for a DC cable. FIG. 1 shows a cross-sectional view of the appearance of a superconducting cable 1, and the length of the thermal insulation tube 2 is made shorter than the length of the cable core 3. As shown in FIG.

[0052]

[cable core]

Although not shown, the cable core 3 contained inside the heat insulating tube 2 continuously includes a forming member, a superconductor layer, an insulating layer, an outer conductor layer, and a protective layer from the center thereof.

[0053]

As the shaped part, a solid part twisted with a wire button or a hollow part using a metal tub...

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Abstract

There is provided a superconductive cable capable of promoting a heat insulating function by a heat insulating tube and capable of maintaining the heat insulating function of the heat insulating tube at a minimum even when outside of the heat insulating tube is destructed in transportation. A heat insulating tube 2 contained with a cable core 3 of a superconductive cable 1 includes a first metal tube 21 and a second metal tube 22 and a third metal tube 23 arranged from an inner side in a diameter direction. An inner side heat insulating portion 5 is formed between the first metal tube 21 and the second metal tube 22, and an outer side heat insulating portion 7 is formed on an inner side of the third metal tube 23 and on an outer side of the inner side heat insulating portion 5. A heat insulating function of the heat insulating portion on an outer side is set to be lower than a heat insulating function of the heat insulating portion on an inner side thereof.

Description

technical field [0001] The present invention relates to a superconducting cable formed by accommodating a cable core in a heat insulating tube. Background technique [0002] Generally, a superconducting cable is formed by accommodating a single-core cable or a cable core twisted together by a plurality of members inside a heat insulating tube (for example, refer to Patent Reference 1). [0003] The cable core consists of a shaped part, a superconductor, an insulating layer, a shielding layer, and a protective layer successively from the central side. As shown in FIG. 2, the thermal insulating pipe A is composed of bimetallic pipes of inner pipe A1 and outer pipe A2, and generally, both pipes use a corrugated pipe formed of a corrugated pipe shape in the longitudinal direction so as to be easily bent. In addition, a single core or a cable core twisted together by a plurality of members B buttons is included on the inner side of the inner tube A1. A refrigerant such as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B12/14F16L9/06F16L9/18F16L59/14
CPCH01B12/14Y02E40/645F16L59/143F16L59/141F16L59/065Y02E40/60H01B12/00
Inventor 广濑正幸畑良辅
Owner SUMITOMO ELECTRIC IND LTD
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