Wet Electrostatic Precipitatator is used in coal-fired power plant in PM2.5 pollution control.It introduces the structure characteristic and working principle of WESP.Based on the application of WESP after desulfurization in coal-fired power plant in ultra-low emission, find and solve the problems that arise in the operation of the application and development of wet electric technology provides a reliable support.The entity porous model has been used and grid was refined in the numerical simulation.So that the calculative deficiency in porous media model was surmounted and calculation accuracy was improved.%燃煤电厂湿式电除尘技术可以控制细颗粒物PM2.5对周围环境的污染,实现烟尘超低排放.介绍了湿式电除尘的运行原理及结构组成,通过湿电在燃煤电厂的超低排放工程的应用,发现和解决运行中出现的问题,对湿电技术的应用和发展提供了可靠的支持.流场数值模拟中采用了实体多孔板模型,并在网格划分上做了局部加密的处理,克服了多孔介质模型计算的不足,提高了计算精度.
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