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Recently, in response to the research and development needs of the new anti-pollution flashover paint project of State Grid Corporation, the technicians of the State Grid Shandong Electric Power Research Institute completed a sample of the new anti-pollution flashover paint at the Zhengzhou ±800 kV UHV Zhongzhou Converter Station.
This marks the first trial application of the new anti-pollution flashover paint independently developed by the institute in DC projects.
This marks the first trial application of the new anti-pollution flashover paint independently developed by the institute in DC projects.
At present, silicone rubber coatings mainly have significant problems such as easy aging, serious accumulation of organic pollution, and difficulty in cleaning.
In response to this problem, the State Grid Shandong Electric Power Company United Nations Network Operation Company jointly carried out the research and application of new anti-pollution flashover coatings.
The project aims to develop anti-pollution flashover coatings with long-term superhydrophobicity and degradation of organic pollutants.
Solve the problems of serious pollution on the external insulation surface of power grid equipment and difficult removal of the accumulated pollution, and achieve the goal of reducing the probability of pollution flashover, extending the service life of equipment, and improving the level of safe operation of the power grid.
Solve the problems of serious pollution on the external insulation surface of power grid equipment and difficult removal of the accumulated pollution, and achieve the goal of reducing the probability of pollution flashover, extending the service life of equipment, and improving the level of safe operation of the power grid.
After testing, compared with silicone rubber anti-pollution flashover coatings, the new coatings mainly have the following three significant properties.
First, it has super-hydrophobic properties .
The water repellent angle of the new coating exceeds 155° and the rolling angle is less than 5° .
The coating does not lose its performance under the impact of 50 microliters of water droplets at a speed of 4.
4 m/s .
The performance of 2.
4 m/s water droplets will not be lost under the continuous impact of more than 700 times .
It is equivalent to the coating can maintain good super-hydrophobicity in light rain.
The coating remains super-hydrophobic performance unchanged under various simulated external force damage conditions such as knife cutting, gluing and sandpaper friction.
The second is high self-cleaning performance.
The new coating also has the performance of photocatalytic degradation of organic matter and low adsorption of foul particles, which can effectively reduce the accumulation of organic and inorganic fouling on the outer surface, and provides a new solution to the problem of difficult removal of organic fouling on the surface of silicone rubber.
The third is that it has long-term performance.
The new coating uses fluorosilicone resin with excellent aging performance to solve the problem of easy aging of silicone rubber and easy loss of hydrophobicity from the raw materials.
After 2000 hours of UV light aging, the new coating maintains its superhydrophobic properties, and the structure and composition of the coating surface basically do not change.
First, it has super-hydrophobic performance of 155° 5° 4.
4 m/s 50 μl 2.
4 m/s 700 times.
Second, it has high self-cleaning performance.
The third is that it has long-term performance.
The new coating uses fluorosilicone resin with excellent aging performance to solve the problem of easy aging of silicone rubber and easy loss of hydrophobicity from the raw materials.
Under current conditions, this new type of coating used in DC transmission, compared with silicone rubber anti-pollution flashover coatings, can significantly reduce the accumulation of pollution in DC transmission equipment, effectively reduce the probability of pollution flashover, and improve the safe operation of the power grid.
Under current conditions, this new type of coating used in DC transmission, compared with silicone rubber anti-pollution flashover coatings, can significantly reduce the accumulation of pollution in DC transmission equipment, effectively reduce the probability of pollution flashover, and improve the safe operation of the power grid.
Source: Ai Tubang Public Account
This marks the first trial application of the new anti-pollution flashover paint independently developed by the institute in DC projects.
This marks the first trial application of the new anti-pollution flashover paint independently developed by the institute in DC projects.
At present, silicone rubber coatings mainly have significant problems such as easy aging, serious accumulation of organic pollution, and difficulty in cleaning.
In response to this problem, the State Grid Shandong Electric Power Company United Nations Network Operation Company jointly carried out the research and application of new anti-pollution flashover coatings.
The project aims to develop anti-pollution flashover coatings with long-term superhydrophobicity and degradation of organic pollutants.
Solve the problems of serious pollution on the external insulation surface of power grid equipment and difficult removal of the accumulated pollution, and achieve the goal of reducing the probability of pollution flashover, extending the service life of equipment, and improving the level of safe operation of the power grid.
Solve the problems of serious pollution on the external insulation surface of power grid equipment and difficult removal of the accumulated pollution, and achieve the goal of reducing the probability of pollution flashover, extending the service life of equipment, and improving the level of safe operation of the power grid.
After testing, compared with silicone rubber anti-pollution flashover coatings, the new coatings mainly have the following three significant properties.
First, it has super-hydrophobic properties .
The water repellent angle of the new coating exceeds 155° and the rolling angle is less than 5° .
The coating does not lose its performance under the impact of 50 microliters of water droplets at a speed of 4.
4 m/s .
The performance of 2.
4 m/s water droplets will not be lost under the continuous impact of more than 700 times .
It is equivalent to the coating can maintain good super-hydrophobicity in light rain.
The coating remains super-hydrophobic performance unchanged under various simulated external force damage conditions such as knife cutting, gluing and sandpaper friction.
The second is high self-cleaning performance.
The new coating also has the performance of photocatalytic degradation of organic matter and low adsorption of foul particles, which can effectively reduce the accumulation of organic and inorganic fouling on the outer surface, and provides a new solution to the problem of difficult removal of organic fouling on the surface of silicone rubber.
The third is that it has long-term performance.
The new coating uses fluorosilicone resin with excellent aging performance to solve the problem of easy aging of silicone rubber and easy loss of hydrophobicity from the raw materials.
After 2000 hours of UV light aging, the new coating maintains its superhydrophobic properties, and the structure and composition of the coating surface basically do not change.
First, it has super-hydrophobic performance of 155° 5° 4.
4 m/s 50 μl 2.
4 m/s 700 times.
Second, it has high self-cleaning performance.
The third is that it has long-term performance.
The new coating uses fluorosilicone resin with excellent aging performance to solve the problem of easy aging of silicone rubber and easy loss of hydrophobicity from the raw materials.
Under current conditions, this new type of coating used in DC transmission, compared with silicone rubber anti-pollution flashover coatings, can significantly reduce the accumulation of pollution in DC transmission equipment, effectively reduce the probability of pollution flashover, and improve the safe operation of the power grid.
Under current conditions, this new type of coating used in DC transmission, compared with silicone rubber anti-pollution flashover coatings, can significantly reduce the accumulation of pollution in DC transmission equipment, effectively reduce the probability of pollution flashover, and improve the safe operation of the power grid.
Source: Ai Tubang Public Account
