Wind-resistant composite insulator and preparation process thereof

A composite insulator and preparation process technology, applied in the field of power transmission and transformation, can solve problems such as fatigue fracture of silicone rubber materials, and achieve the effect of solving tearing and ensuring normal work.

Pending Publication Date: 2020-04-03
XIANGYANG GUOWANG COMPOSITE INSULATORS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Under strong wind conditions, the umbrella skirt will continue to swing strongly and steadily, which will eventually lead to fatigue fracture of the silicone rubber material

Method used

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  • Wind-resistant composite insulator and preparation process thereof

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Experimental program
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Effect test

Embodiment

[0025] 1) According to the ratio of epoxy resin HW-12 and curing agent H-001 according to the mass ratio of 2:3.1, add them to the two tanks of the injection machine respectively;

[0026] 2) Heat the two tanks of the injection machine to 45-55°C, turn on the stirring and vacuum at the same time to preheat the material; the vacuum degree of the pretreatment process is ≤1.0 Pa, and the treatment time is 4 hours;

[0027] 3) Prepare the FRP mandrel and fittings, and crimp them. The crimped mandrels must meet the national standards and be checked one by one. Roughen the surface of the crimped mandrel with 200-320 mesh sandpaper, and wipe the surface with alcohol to ensure that the surface is free of oil, dust and other impurities.

[0028] 4) After the surface treatment of the mandrel is completed, put it into the oven and preheat it at 130±3℃ for 30min. Wrap 7-8 circles of raw material tape on both ends of the preheated mandrel (sealed at both ends), install it in the cavity of...

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Abstract

The invention discloses a wind-resistant composite insulator and a preparation process thereof. The insulator comprises a core rod, fittings arranged at the two ends of the core rod, and a plurality of epoxy resin frameworks which cover the outside the core rod, and are arranged along the axial direction and provided with bulges, silicon rubber umbrella skirts are arranged outside the epoxy resinframeworks, and the inclination angles of the upper surfaces of the silicon rubber umbrella skirts relative to the radial cross section of the core rod are the same as those of the lower surfaces of the silicon rubber umbrella skirts relative to the radial cross section of the core rod. The silicone rubber umbrella skirts are large umbrellas which are coaxial with a core rod and equal in diameter,or a small umbrella is arranged between every two adjacent large umbrellas; the small umbrellas are smaller than the large umbrellas in diameter. The core rod is composed of a glass fiber epoxy resindrawing rod. The epoxy resin is prepared from epoxy resin and a curing agent. Compared with the prior art, the defect that the root of the umbrella skirt is torn when encountering strong wind is overcome, the problem that the root of the umbrella skirt is torn can be effectively solved, and normal work of the insulator is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of power transmission and transformation, and relates to a preparation process of a large wind-resistant composite insulator. Background technique [0002] Under strong wind conditions, the umbrella skirt will continue to swing strongly and steadily, which will eventually lead to fatigue and fracture of the silicone rubber material. When high-speed rail and high-speed trains run at a speed of 300km / h, plus a wind speed in the range of 25-60 m / s, the relative wind speed of the shed is quite large, so the root of the shed is often torn. Research on the protection of sheds is of great significance to ensure the normal operation of insulators. Contents of the invention [0003] The purpose of the present invention is to solve the problem that the root of the shed is torn in strong wind, and to provide a wind-resistant composite insulator, which can effectively solve the tear of the shed root and ensure the no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B17/32H01B19/00
CPCH01B17/325H01B19/00
Inventor 杨红军吴兆峰王锋张涛甘银银
Owner XIANGYANG GUOWANG COMPOSITE INSULATORS
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