A terminal structure of conduction cooling high temperature superconducting cable

A high-temperature superconducting and conduction cooling technology, which is applied to the cable accessories of low-temperature cables and the usage of superconductor elements, etc., can solve the problems of high cost, complex structure, inconvenient operation of supplementing and replacing liquid nitrogen, etc., and achieve low cost and high efficiency. Utilization efficiency, effect of reducing heat conduction

Active Publication Date: 2022-04-26
CHINA THREE GORGES CORPORATION +1
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Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention lies in that the superconducting cable reaches the working temperature by submerging and cooling in low-temperature liquid nitrogen in the prior art. This cooling method is not only complicated in structure and high in cost, but also requires regular maintenance. It is very inconvenient to replenish and replace liquid nitrogen operations, thus providing a terminal structure for cooling high-temperature superconducting cables through conduction cooling

Method used

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  • A terminal structure of conduction cooling high temperature superconducting cable
  • A terminal structure of conduction cooling high temperature superconducting cable
  • A terminal structure of conduction cooling high temperature superconducting cable

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Embodiment 1

[0078] Such as Figure 1 to Figure 7 As shown, the embodiment of the present invention provides a terminal structure of a conduction cooling high temperature superconducting cable, which includes: a cable terminal body 1, a terminal heat insulation shell 2, and a refrigeration mechanism.

[0079] Specifically, a vacuum heat insulation cavity is formed in the terminal heat insulation shell 2, and the cable terminal main body 1 is arranged in the vacuum heat insulation cavity. The refrigerating mechanism includes a refrigerating output part, which protrudes into the vacuum insulation cavity, and the refrigerating output part is connected with the cable terminal main body 1 through a cooling structure 4 .

[0080] In this way, the cooling capacity generated by the refrigeration mechanism is output by the refrigeration output part, and then transferred to the cable terminal main body 1 through the cooling structure 4, so as to realize the cooling of the high-temperature supercondu...

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Abstract

The invention discloses a terminal structure of conduction cooling high-temperature superconducting cable. The terminal structure comprises: a cable terminal main body; It is arranged in the vacuum heat insulation cavity; the cooling mechanism includes a cooling output part protruding into the vacuum heat insulation cavity, and the cooling output part is connected with the main body of the cable terminal through a cooling structure. The terminal structure provided by the present invention cools the high-temperature superconducting cable through the conduction cooling of the refrigerator, without cryogenic liquid transportation and replenishment operations, and can run for a long time without regular maintenance. Reduce the heat leakage of the cable terminal, improve the utilization efficiency of the cooling capacity of the refrigerator, and effectively ensure the stable operation of the cable for a long time.

Description

technical field [0001] The invention relates to the application field of superconducting power technology, in particular to a terminal structure of conduction cooling high-temperature superconducting cables. Background technique [0002] High-temperature superconducting cables processed from high-temperature superconducting materials, under the same structural size, transmit current density that is at least two orders of magnitude higher than conventional cables. Applying high-temperature superconducting cables to power grids can greatly improve the power transmission of the power grid It has important application value for upgrading the existing power system. For high-temperature superconducting cables, in principle, its total operating loss should be close to or slightly greater than that of conventional cables, so that its economy can reach a certain level. At present, the largest operating loss of high-temperature superconducting cables is to cool the cables below the cr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02G15/34
CPCH02G15/34Y02E40/60H02G3/03F25D19/006
Inventor 吴云翼尹立坤巩谦杨勇朱玉嘉
Owner CHINA THREE GORGES CORPORATION
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