A high-voltage insulating water pipe
A high-voltage insulation and water pipe technology, applied in insulators, insulators, hoses, etc., can solve problems such as easy aging, and achieve the effects of smooth flow, easy installation, and excellent insulation performance.
Active Publication Date: 2018-08-28
STATE GRID CORP OF CHINA +1
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Problems solved by technology
[0006] In order to solve the above problems, the present invention provides a high-voltage insulated water pipe, which is used for the cooling cycle of power equipment in super- and extra-high-voltage power systems. It has an insulating jacket, which solves the problem of easy aging of the water pipe when it is used outdoors; structure, which solves the insulation problem of pure water cooling pipes between high and low potentials; it has an equipotential electrode design, which effectively improves the internal field strength distribution of pure water inside the pipes
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[0031] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0032] The high-voltage insulated water pipe provided by the embodiment of the present invention is used for the cooling cycle between the high and low voltage potentials of the power equipment in the ultra-high voltage power system, such as Figures 1 to 4 As shown, it includes: insulating jacket 1, metal flange 2, water pipe 3, equipotential electrode 4, pressure equalizing ring 5, insulating layer 6, bracket 7, bolt 8, nut 9, loose washer 10, washer 11. The insulating jacket 1 is a porcelain insulating jacket or a composite insulating jacket with umbrella skirts at axial intervals. Put the water pipe 3 into the insulating jacket 1, and set metal flanges 2 at both ends of the insulating jacket 1 respectively. An insulating layer 6 made of insulating gas, insulating liquid or insulating paste is arranged in the airtight...
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The invention provides a high-pressure insulating water tube. The high-pressure insulating water tube is used for cooling circulation between high-voltage potential and low-voltage potential of electrical equipment in ultra-high and extra-high electric power system, and is characterized by comprising a water tube and an insulating jacket, wherein metal flanges are respectively arranged at two ends of the insulating jacket; and an insulating layer is arranged between the insulating jacket and the water tube. Compared with the prior art, the high-pressure insulating water tube is provided with the insulating jacket, solves the problem that the water tube is easy to age when used in an outdoor environment, and has an excellent insulating structure so that insulating of the pure-water-cooled tube between high potential and low potential is implemented; and moreover, owing to the design of an equipotential electrode, inner field intensity distribution of pure water in the tube is improved effectively.
Description
technical field [0001] The invention relates to a water pipe, in particular to a high-voltage insulating water pipe. Background technique [0002] In recent years, with the development of power electronics technology, power electronic devices such as high-power thyristors and IGBTs are widely used in power systems, such as DC converter stations and controllable series compensation stations. [0003] Series compensation (referred to as series compensation) technology uses capacitor banks in series on long-distance large-capacity transmission lines to offset part of the line inductance, so as to improve the stability of the power system and increase the transmission capacity of the line. The series compensation device is divided into two types: fixed series compensation device and controllable series compensation project. The controllable series compensation device is based on the fixed series compensation device, adding a controllable reactor. Its principle is to adjust the ...
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IPC IPC(8): F16L9/18F16L11/20F16L57/00H01B17/58H01B17/60H01B17/42
Inventor 周玮李会兵董勤晓刘之方党东闫晔李国富
Owner STATE GRID CORP OF CHINA