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Structure and method for connecting former of superconducting cable

A connection structure and connection method technology, applied in the direction of conductive connection, superconductor element usage, superconductive devices, etc., can solve the problems of welding strength reduction, deterioration, cumbersome operability of processing operations, etc., to achieve joint strength and avoid The concentration of electrolysis and the effect of realizing operability

Active Publication Date: 2014-04-16
FURUKAWA ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, if the welding is performed without blocking the hollow interior of the frame, there is a problem that welding cannot be performed near the hollow interior, the welding strength is reduced, or the workability itself is cumbersome and the workability is deteriorated.

Method used

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  • Structure and method for connecting former of superconducting cable
  • Structure and method for connecting former of superconducting cable
  • Structure and method for connecting former of superconducting cable

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Embodiment Construction

[0048] [Superconducting cable]

[0049] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0050] figure 1 It is a figure which shows an example of a superconducting cable.

[0051] The superconducting cable 10 is a single-core superconducting cable in which a single cable core 11 is accommodated in a heat insulating tube 12 . The cable core 11 is composed of the following parts: a skeleton 140 , a superconducting conductor layer 112 composed of superconducting wires, an electrical insulating layer 113 , a superconducting shielding layer 114 , a conventional conductive shielding layer 115 and a protective layer 116 .

[0052] The skeleton 140 is a winding core for forming the cable core 11 , and is formed by twisting conventional conductive wires (conductor wires) such as copper wires, for example. At the time of a short-circuit accident, the accident current flowing in the superconducting conductor layer 112 is s...

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Abstract

A connection structure for connecting hollow formers (140) provided inside a superconducting cable (10), wherein the connection structure is characterized in that one end section and another end section of a hollow connecting conduit (145) are inserted into an open section (144) leading to a hollow interior section formed in a connection end section of each of the formers, the opposed connection end sections of the formers being welded together. The connection conduit (145) thereby ensures circulation of a refrigerant. Also, there is no incidence of the refrigerant circulation path being blocked when welding is performed in the connection conduit, allowing formers to be more easily connected.

Description

technical field [0001] The present invention relates to a connection structure and connection method of a skeleton located at the center of a cable core of a superconducting cable. Background technique [0002] The superconducting cable has a cable core and an insulating tube with a vacuum double-tube structure. The cable core has a skeleton and a superconducting wire. cycle. [0003] Furthermore, in order to improve the cooling efficiency of the superconducting wire and the skeleton, the skeleton is formed in a hollow, and a liquid refrigerant circulates in the hollow. [0004] However, in the case of using a superconducting cable as a power supply line, it is necessary to lay the superconducting cable from the power supply source to a remote power consumption place, and the superconducting cable is not a single piece due to manufacturing or transportation reasons. Cable length is limited. Therefore, when laying long-distance cables, it is necessary to connect several su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02G1/14H01B12/02H01B13/00H01L39/04H01R4/68H02G15/34
CPCH02G15/34H01L39/04Y02E40/648H02G1/14H01R4/68H01L39/02Y10T29/49194Y10T29/49826Y02E40/60H10N60/80H01B12/16H01B13/0036H01R4/029
Inventor 滕军八木正史
Owner FURUKAWA ELECTRIC CO LTD
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