Jiangsu Rudong Offshore Wind Farm Facility Protection Project

The Rudong offshore wind farm in Jiangsu is located in the Yellow Sea, where the annual average relative humidity exceeds 80%, and the air contains a high salt content. Sea breezes carrying sea spray continuously erode the wind turbine equipment. According to preliminary survey data from the wind farm, without protection, the corrosion thickness of the wind turbine tower can reach 0.5 to 1 millimeter per year. The insulators on the transmission lines often experience flashover due to salt fog pollution, seriously affecting transmission stability. Corrosion spots densely cover the surface of the turbine blades, leading to a decline in aerodynamic performance and a reduction in power generation efficiency by about 5%.

The Rudong offshore wind farm in Jiangsu is located in the Yellow Sea, where the annual average relative humidity exceeds 80%, and the air contains a high concentration of salt. The sea breeze carries sea spray that continuously corrodes the wind turbine equipment. According to preliminary survey data from the wind farm, without protection, the corrosion thickness of the turbine towers can reach 0.5 to 1 millimeter per year. The insulators on the transmission lines often experience flashover due to salt fog pollution, severely affecting transmission stability. The surfaces of the turbine blades are densely covered with corrosion spots, leading to a decline in aerodynamic performance and a reduction in power generation efficiency by about 5%.
Hisenmek has customized a comprehensive nano-coating protection solution for the Rudong offshore wind farm. For the turbine blades, a nano-coating with dual functions of corrosion resistance and drag reduction is applied. This coating forms a dense protective film on the blade surface that effectively blocks the corrosion caused by seawater salt, and its low surface energy characteristic reduces air resistance by 10% during blade rotation. For the towers and transmission lines, nano-coatings with excellent weather resistance and insulation properties are used, greatly enhancing the equipment's ability to withstand harsh marine environments.
After project implementation and two years of continuous monitoring, the corrosion rate of the towers has decreased to 0.1 to 0.2 millimeters per year, a reduction of 80%. The number of flashover incidents on the transmission line insulators has dropped from 10-15 times per year to 2-3 times. The power generation efficiency of the turbine blades has improved to nearly the design value, increasing by about 4% compared to before. The overall equipment failure rate has significantly decreased. Previously, large-scale maintenance was required 3-4 times a year, which has now been reduced to 1-2 times, greatly lowering operation and maintenance costs and effectively ensuring the stable operation of the offshore wind farm.

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