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    Home > Coatings News > Paints and Coatings Market > Common knowledge of coating: detailed explanation of anti-corrosion technology of three wind farms in China

    Common knowledge of coating: detailed explanation of anti-corrosion technology of three wind farms in China

    • Last Update: 2020-04-03
    • Source: Internet
    • Author: User
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    Core tip: in the past two years, the domestic haze weather has become more and more intense, and people begin to pay more attention to the attitude of air pollution People will have news about PM2.5 after dinner Wind resource is called "blue sky white coal", which is a kind of renewable energy that can not be used up, and will not produce any pollution People began to use wind power as early as in ancient times, but it was not until the end of the 19th century that Denmark built the world's first wind power generation device Compared with other power generation methods such as thermal power, nuclear power and hydropower, wind power has many advantages Paint knowledge how about Akzo Nobel Powder Coating Recommended introduction: powder coating is a kind of coating with different form from general coating, which is in powder form It is a new type of coating, because of its own advantages and more and more known by people Let's introduce Akzo Nobel Powder coating Akzo Nobel Powder coating is a cost-effective coating solution, which can be applied to different kinds of products After the treatment of static electricity and fire baking, a tough and durable coating surface will be formed, with the least impact on the environment Since the introduction of this technology, powder coating has been able to continue to maintain the Paint Home News: in recent two years, the domestic haze weather is becoming more and more intense, people began to pay attention to the attitude of air pollution more and more attention People will have news about PM2.5 after dinner Wind resource is called "blue sky white coal", which is a kind of renewable energy that can not be used up, and will not produce any pollution People began to use wind power as early as in ancient times, but it was not until the end of the 19th century that Denmark built the world's first wind power generation device Because wind power generation has many advantages compared with other power generation methods such as thermal power, nuclear power, hydropower, etc., the installed capacity of wind power in the world has grown rapidly since the 1980s It was 15 megawatts in 1981 and 2652 megawatts in 1992 With an annual growth rate of 13%, wind power generation has become one of the fastest growing energy sources in the world, and it still maintains a rapid development momentum At present, the wind farms in operation in China are mainly distributed in the "Three North" (northeast, northwest, North China) areas, the southeast coastal areas (Shandong, Jiangsu, Shanghai, Zhejiang, Fujian, Guangdong, Hainan and other coastal areas) and the inland areas to the south of the Yellow River with abundant wind energy resources The distribution area is very wide, and the anti-corrosion technology of wind power generation equipment is also different The following new coating network will explain the differences of related technologies for you 1、 Due to the wide area, wide latitude span and great difference of temperature and humidity in Sanbei area In winter and spring, there are many fogs and snow, high air humidity, and low temperature When the saturation temperature is below - 20 ℃, the so-called "rime" phenomenon is easy to appear, and the surface of fan blades will be "crystallized", which all pose a serious threat to the safe operation of wind power generation equipment According to the corrosion environment classification of iso12944-2 standard, the exterior of engine room and impeller, as well as the surface of foundation ring and tower simplified body of wind power equipment located in "Three North" area belong to C3 corrosion type, and the interior of engine room, hub and tower barrel belong to C2 corrosion type For the inner and inner surfaces of wind power equipment in "Sanbei" area, the coating system is: epoxy zinc rich primer + epoxy micaceous iron intermediate paint + polyurethane top coat, the total dry film thickness is generally about 180 μ m, while the total dry film thickness on the outer and outer surfaces of the equipment is generally 240 μ M 2、 The southeast coastal areas of China belong to temperate, subtropical and tropical marine climate areas, with an annual average temperature of more than 10-25 ℃ The prevailing sea land wind blows the salty water vapor into the wind farm and corrodes the components of the equipment in a large area Main protective measures: surface treatment of metal equipment is carried out by using zinc chromium film coating technology to form a protective film on the end face of the material; frequent patrol inspection is carried out to timely treat the equipment in case of corrosion, so as to prevent the corrosion of metal by chlorine and other substances It can also adopt the anti-corrosion technology such as hot dip zinc, hot spray zinc, zinc (aluminum) penetration, Dacromet and the heavy anti-corrosion technology of coating composite coating structure The thickness of the film should also be about 280-300 μ M 3、 The inland area to the south of the Yellow River in China, according to its geographical scope and climatic characteristics, belongs to temperate, subtropical continental monsoon climate and plateau climate respectively The atmospheric circulation that affects the climate formation in this area is mainly monsoon circulation, with an annual average temperature of 13-15 ℃ There are more natural disasters such as drought and flood than other regions The outer surface of the wind turbine is usually a three-layer coating structure of epoxy zinc rich primer + epoxy micaceous iron intermediate paint + polyurethane finish, with a dry film thickness of 280-300 μ M Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,
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