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The Role of Pipeline Electrostatic Precipitator in Energy Saving and Emission Reduction

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With the development of national energy saving and emission reduction and the stricter environmental protection index, especially in the low temperature absorption tower without GGH wet desulfurization, because of the limitation of the efficiency of mechanical demister, the higher moisture content of flue gas put forward higher anti-corrosion requirements for chimneys. If a pipeline electrostatic precipitator is installed at the back of the absorption tower, the problem will be solved thoroughly.

Pipeline ESP is widely used in foreign power plants due to its many advantages and high efficiency and conciseness. At present, wet desulfurization is widely used in large coal-fired power plants in China. The phenomenon of high water content often appears in the flue gas discharged from desulfurization absorption tower. At present, most of the desulfurization devices in power plants have GGH. The flue gas emission temperature of pipeline electrostatic precipitator is high, and the requirement of defogging on the top of tower and anti-corrosion of chimney is not high. However, the investment and operation cost of GGH are high, and the high emission temperature causes certain energy. Source waste.

With the continuous improvement of national requirements for energy saving and emission reduction, canceling GGH and reducing reaction temperature of absorption tower have become a trend of desulfurization, which can more effectively recover heat energy. However, due to the low temperature reaction will produce more water mist, the original mechanical demister on the top of the tower can not meet the requirements of demister, and it is bound to add new requirements for chimney anticorrosion. Therefore, pipeline type is installed behind the tower. Electrostatic precipitator is imperative.www.icleairs.com


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