超低排放湿式电除尘器方案的比较

Comparison of Various Schemes For Ultra-low Emission Wet Electrostatic Precipitators

为降低污染物排放量,国内燃煤发电机组开始了新一轮环保改造。介绍了目前所用湿式电除尘器的3种类型,即柔性电极湿式电除尘、金属电极湿式电除尘和导电玻璃钢电极湿式电除尘的工作原理和技术特点,并进一步阐述了立式玻璃钢结构湿式除尘器的结构形式和特点,对燃煤发电机组超低排放改造增加湿式除尘器的方案选择具有一定的参考价值。

To further decrease the amount of pollutant emission, a new wave of retrofit efforts for environmental protection are being performed. Operating principles and technical features of the three different kinds of wet electrostatic precipitators（WEPs）, including the flexible electrode WEP, the metal electrode WEP, and the glass-reinforced plywood WEP, were introduced. As for the glass-reinforced plywood WEP, the structural forms and characteristics were introduced in detail. The research efforts of the present work can provide valuable reference efforts for the coal-fired power units to select reasonable electrostatic precipitators.