A low temperature resistant coating for porcelain and glass insulators

Abstract

The invention discloses a low-temperature-resistant coating of porcelain and a glass insulator. The low-temperature-resistant coating is composed of a Si02 membrane layer arranged on the outer surface of the insulator and a fluorine-containing organic matter membrane layer arranged on the Si02 membrane layer, and a C-Si02 graphite membrane layer is arranged outside the fluorine-containing organic matter membrane layer. The preparation method includes the following steps that the outer surface of an insulator body is coated with the Si02 membrane layer, and the membrane layer is coated with the fluorine-containing organic matter membrane layer and coated with a graphite and Si02 membrane layer; a two-layer structure is changed to be a three-layer structure, water drops at the temperature of 0 DEG C fall rapidly after knocking the surface of the coating, no water drop residues exist on the coating surface, the experiment process can continue for about 150 minutes, it is proved that the coating maintains a good hydrophobic property at a low temperature, freezing of freezing rain on the surface of the coating is effectively inhibited, and the coating has anti-frosting, freezing rain prevention and self-cleaning capacity.

Description

technical field [0001] The invention belongs to the technical field of insulator surface coatings, in particular to a low-temperature resistant coating for porcelain and glass insulators. Background technique [0002] my country is one of the most serious countries in the world where transmission lines suffer from icing disasters. In the cold winter, the heavy snow in the north and the sleet climate at 3-o°C in the central and southern regions can easily lead to the snow accumulation and freezing of the line hanging insulator strings, which will cause short-circuit tripping of the insulators and power outages. Since 1954, when there were records of ice disaster accidents on transmission lines, large-scale ice disaster accidents have occurred across the country one after another. [0003] The ice on the surface of the insulator will melt when the temperature rises. Due to the presence of conductive ions in the dirt on the ice layer, under the action of these conductive ions,...

AI Technical Summary

Problems solved by technology

These methods need to consume a large amount of acid-base solution in the implementation process, and the solution in which the metal ions are dissolved is difficult to reuse, and the treatment of waste liquid will cause further environmental pollution.