Special high-voltage cable for large electromechanical equipment

Abstract

The invention discloses a special high-voltage cable for large electromechanical equipment, which comprises a cable body, a conductor, an outer skin, an insulating layer and a filling layer, the cable body is composed of the outer skin and the conductor, the conductor comprises a copper wire core and the insulating layer wrapping the outer side, the outer side of the conductor is provided with a heat conduction strip which is distributed in a surrounding manner, and the heat conduction strip is arranged on the outer side of the cable body. The inner wall of the heat conduction strip is attached to the outer wall of the insulating layer, the pipe wall of the runner pipe is provided with a protruding part and a concave part, the concave part is of an elastic structure, and the elastic deformation of the concave part enables the runner pipe to be bent along with the cable body without being bent. According to the special high-voltage cable for the large electromechanical equipment, an internal fluid passing structure of the cable is redesigned, so that on the basis of effectively ensuring the heat dissipation effect, the passing structure can be correspondingly bent but not bent to be matched with necessary bending of the cable body during laying; and meanwhile, real-time monitoring and auxiliary heat dissipation can be carried out on heat generated by the conductor by utilizing a corresponding heat conduction mechanism.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a special high-voltage cable for large electromechanical equipment. Background technique [0002] When the high-voltage cable is in operation, due to the long-term transmission of high-voltage current inside, its internal temperature will remain at a high level when the cable is working. When the cable load is high, the core temperature will rise, and the cable will expand when heated. The creep force of the cable is very large, which causes the outer sheath and metal sheath of the support to be crushed, and squeezes into the cable insulation layer, causing the cable to break down. Therefore, in the prior art, a corresponding cooling mechanism will be designed in the cable, but now Some similar high-voltage cables still have the following problems in actual use: [0003] In the prior art, the method of embedding a water-cooled pipe inside the cable is used, and the existing equip...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a special high-voltage cable for large-scale electromechanical equipment to solve the above-mentioned background technology. Water-cooled heat dissipation operation is performed on the inside of the cable, but due to the fact that the high-voltage cable has a certain bending requirement when it is actually laid, the water-cooled tube installed inside has a high structural strength in order to ensure that it will not leak due to pressure damage, causing the cable itself to bend Inconvenient, and prone to rupture and leakage after bending

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