A superconducting cable refrigeration medium spiral transmission structure and superconducting cable
A refrigeration medium and superconducting cable technology, which is applied in superconducting devices, superconducting/high-conducting conductors, superconducting elements, etc., can solve the problems of large magnetic field coils, insufficient cooling effect, complex joint structure requirements, etc., to achieve Reduce AC loss and avoid low cooling effect
Active Publication Date: 2022-05-20
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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[0005] The object of the present invention is to provide a superconducting cable refrigeration medium spiral transmission structure and a superconducting cable, which can solve the problems of insufficient refrigeration effect, large magnetic field coils, and complex joint structure requirements in the refrigeration structure and winding method of superconducting cables. question
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[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0030] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position indicated by "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenien...
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Abstract
The invention discloses a superconducting cable cooling medium spiral transmission structure and a superconducting cable, comprising: a cooling inner tube and a cooling outer tube; the diameter of the cooling inner tube is smaller than the diameter of the cooling outer tube, and the cooling inner tube The tube is passed through the cooling outer tube, and the superconducting strip is connected to the outer surface of the cooling inner tube; wherein, the inner wall of the cooling inner tube is provided with a raised first thread structure, and the cooling outer tube A protruding second thread structure is provided on the inner wall of the tube, through which the refrigerant medium in the cooling inner tube and the cooling outer tube are spirally transported respectively through the first thread structure and the second thread structure. In the present invention, the refrigerating medium in the refrigerating inner tube and the refrigerating outer tube is spirally transported through the raised thread structure provided on the inner wall of the refrigerating inner tube and the refrigerating outer tube, so as to avoid the problem of low cooling effect due to different temperatures of various parts of the refrigerating medium.
Description
technical field [0001] The invention relates to the technical field of superconducting cables, in particular to a superconducting cable cooling medium spiral transmission structure and superconducting cables. Background technique [0002] Superconducting materials refer to materials that have the properties of zero resistance and repelling magnetic field lines under certain low temperature conditions. This low temperature condition varies according to different materials, and we call it the critical temperature. Superconducting cables are designed and manufactured using the characteristics of superconducting materials becoming superconducting at their critical temperature, disappearing resistance, minimal loss, high current density, and capable of carrying large currents. Its transmission capacity far exceeds that of oil-filled cables, and is also greater than that of low-temperature cables, which can reach more than 10,000 MVA. It is a new type of cable that is being vigoro...
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IPC IPC(8): H01B12/16H01B12/00
CPCH01B12/16H01B12/00Y02E40/60
Inventor 于是乎赵伟郑晓光杨翠茹何衍和魏俊涛
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID