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Repairing method for silicon rubber casing pipe ageing

A silicone rubber bushing and repair method technology, applied in the direction of electrical components, insulators, circuits, etc., can solve the problems of hydrophobicity drop, pulverization, and affecting the safe operation of the system, and achieve high external insulation strength and strong pollution flashover resistance , Significant climbing effect

Inactive Publication Date: 2013-07-24
HEBEI SILICON VALLEY CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The aging of synthetic silicone rubber bushings shows surface hardening, pulverization, ice cracking, deep cracks, shed damage, severe decrease or complete loss of hydrophobicity, which directly affects the safe operation of the system. If measures are not taken in time, it will bring extremely serious hazard
Generally, power companies can only dismantle and replace new synthetic silicone rubber bushings, which is very expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0008] The present invention includes the following steps: (1) cleaning the aging synthetic silicone rubber casing, removing dust, salt scale, oil stains and other attachments on the surface, and wiping off the pulverized aging layer; (2) coating with organic silica gel water (3) fill and repair cracked and damaged parts with silicone rubber putty; (4) rebuild damaged sheaths and sheds with prefabricated silicone rubber strips; (5) ) On the sheath of the synthetic silicone rubber casing, a large-diameter climbing-increasing umbrella skirt is installed to increase the climbing distance and enhance the ability to resist rain flashover and ice and snow flashover; (6) Apply PRTV anti-pollution flashover composite paint to form a full Covered with new outer insulation.

[0009] The silicone rubber is one-component room temperature curing silicone rubber, two-component room temperature curing silicone rubber or liquid silicone rubber.

[0010] The silicone rubber putty is a paste m...

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Abstract

The invention relates to a repairing method for silicon rubber casing pipe ageing. The repairing method for silicon rubber casing pipe ageing comprises the following steps of: (1) cleaning an operated and aged synthetic silicon rubber casing pipe, removing dust, salt crust, greasy dirt and other attachments on the surface, and wiping off a pulverized ageing layer; (2) coating with organosilicone glue to close up fissures, and activating the surface of the aged synthetic silicon rubber casing pipe; (3) filling and leveling up with a silicon rubber putty, and rebuilding cracked and damaged positions; (4) rebuilding a damaged sheath and umbrella skirt by a prefabricated silicon rubber strip; and (5) painting PRTV anti-pollution flashover composite coating to form a new completely-covering outer insulation layer. The outer insulation layer has the advantages of simple method, low construction cost, strong durability against pollution and long service life.

Description

technical field [0001] The invention relates to a method for repairing the aging of a synthetic silicon rubber bushing used in a substation or a converter station. Background technique [0002] Electric energy transmission is developing in the direction of high voltage level, high load, large scale, and long distance. The construction and operation of high energy, ultra-high voltage, and ultra-high voltage put forward higher technical requirements for power equipment. IEC60815-2008 "Selection and sizing of high-voltage insulators used under polluted conditions Part 1: Definitions, information and general principles" gives the selection and sizing of insulators. At present, there are a large number of substations with insufficient basic creepage distances in the power grid. Equipment, in order to meet the operation requirements under the degree of pollution on site, therefore, the composite of electric porcelain equipment has become a wide and basic configuration. [0003] I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B19/04
Inventor 宋利强游传榜冯同军
Owner HEBEI SILICON VALLEY CHEM CO LTD
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