Spray technology of high voltage insulator surface coating and its spray device

A technology for high-voltage insulators and surface coating, which is applied to devices for coating liquid on surfaces, spray devices, coatings, etc., to achieve the effects of promoting popularization and application, making good use of space, and reducing costs

Active Publication Date: 2007-07-18
FUZHOU UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Different from the method of coating RTV coatings on the surface of insulators, the titanium dioxide-based nano-scale anti-fouling flashover film coated on the surface of insulators needs to control its uniformity and thickness (nanoscale), which is difficult for insulators with complex surface shapes. Brush and spray methods to achieve

Method used

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  • Spray technology of high voltage insulator surface coating and its spray device
  • Spray technology of high voltage insulator surface coating and its spray device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: Film coating on the surface of XWP-70 high voltage porcelain insulator

[0026] After cleaning and drying the surface of the poured and molded commercial XWP-70 porcelain insulator, put it into the insulator bracket on the working disc, control the rotation (revolution) speed of the working disc to 1r / min, and the insulator's rotation speed to 90r / min, the flow rate of the three spray guns is: the flow rate of the upper spray gun is 4mL / min, the flow rate of the middle spray gun is 5mL / min, the flow rate of the lower spray gun is 4mL / min, the air pressure of the three spray guns is: the air pressure of the upper spray gun is 0.08MPa, and the air pressure of the middle spray gun is 0.1 MPa, the air pressure of the lower spray gun is 0.08MPa, and the solid content of titanium dioxide in the spraying liquid is 3.0wt%. After the sample passes through the spraying chamber (the effective spraying time is about 15s), an insulator coated with a titanium dioxide film i...

Embodiment 2

[0028] Example 2: Film coating on the surface of XP-70 high voltage porcelain insulator

[0029]After cleaning and drying the surface of the poured XWP-70 high-voltage porcelain insulator (this insulator has no middle shed, only the upper and lower sides), put it into the insulator bracket with the working disc, open the upper and lower two spray gun. Control the rotation speed of the working disc to 0.3r / min, the rotation speed of the insulator to 90r / min, the flow rate of the spray gun is: the flow rate of the upper spray gun is 4mL / min, the flow rate of the lower spray gun is 5mL / min, the air pressure of the spray gun is: the flow rate of the upper spray gun The air pressure is 0.08MPa, the air pressure of the lower spray gun is 0.08MPa, the solid content of titanium dioxide in the spraying liquid is 3.0wt%, and the sample is taken out after passing through the spraying chamber (the effective spraying time is about 15s), and an insulator coated with a titanium dioxide film ...

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PUM

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Abstract

A technology for spraying a dirt sparkle-resistant film layer on the surface of high-voltage insulator includes such steps as fixing several rotary supporters on the edge of a rotary disc, fixing an insulator to one rotary supporter, and driving said supporter to rotate by drive mechanism when the high-voltage insulator comes in a spraying room while spraying paint from high-pressure spray gun onto the surface of the insulator. Its apparatus is also disclosed.

Description

technical field [0001] The invention relates to a spraying process and a spraying device for the surface coating of a high-voltage insulator. Background technique [0002] Pollution flashover of high-voltage insulators has always been a serious problem in high-voltage transmission and transformation circuits. In recent years, environmental pollution caused by rapid economic growth has led to an upward trend in pollution flashover. At present, there are two main methods to reduce the occurrence of pollution flashover on the surface of high-voltage insulators: one is to change the nature and structure of the insulator itself, including (1) to change the structure and improve the anti-pollution flashover performance by changing the creepage distance of the insulator surface , or directly increase the number of insulator strings to increase the creepage distance; (2) burn the inorganic semiconductor glaze layer on the surface of the insulator to reduce the surface resistivity, u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D1/02B05C5/02B05C13/02B05C11/10B05B15/06
Inventor 付贤智林韩刘平吴文宣戴文新曾文琳陈旬施倩王绪绪廖福旺员汝胜李学永
Owner FUZHOU UNIV
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