The Development Of Wet Electrostatic Precipitator And Its Application In Thermal Power Plant

The overall deterioration of environment in our country, the environment have becomeincreasingly prominent, environmental pressure, part of the region and the city atmospherichaze prominent phenomenon. All levels of government has introduced a number of policymeasures, make great efforts to control air pollution, improve air quality. Pollutants fromcoal-fired thermal power plants and industrial boilers production is the main source ofatmospheric pollution of the environment. The state environmental protection department in2011promulgated the "thermal power plant air pollutant emission standards"(GB13223-2011) requirements, further reduce the thermal power plant flue gas dust and other pollutants;hair "action plan for upgrading and transformation of coal energy saving and emissionreduction in2014the national development and Reform Commission and the stateenvironmental protection department jointly (2014-2020years)", requirement in2020beforethe active coal-fired generating units of basic to gas turbine emissions limits, to encourage andfacilitate the installation of Wet Electrostatic Precipitator（WESP）; At the same time,Guangdong Province Development and Reform Commission and Guangzhou City Hall putsforward the goal of the main atmospheric pollutants "ultra clean emissions coal-fired powerplants, thermal power plant" requirement for retrofit of electrostatic precipitator for wet,ensure the dust emission concentration in flue gas is lower than5mg/Nm3.As the final finishing system control of atmospheric pollutant treatment equipment of[1]composite, WESP can be used to control the PM2.5, acid mist, aerosol, sub emblem metersRA, mercury, heavy metals and dioxins and other emissions[2]. This paper will discuss thework principle, WESP technical characteristics, development direction, lack of comparison ofvarious technical advantages of electrostatic precipitator and the presence of. GuangzhouChina Resources Thermal Power Co#1unit "super clean emissions" project for thereconstruction of National Energy Bureau and the Guangzhou City Hall first environmentalreform demonstration projects, combined with the implementation of the project, research onWESP r application in thermal power plant and the existing problems, in addition to providingdemonstration for wet electric dust collector and the support is widely used in thermal powerplant, to provide according to completely solve thermal power plant dust, PM2.5, gypsum rain,SO3aerosol, mercury emissions and other environmental protection problems, promote cleanand efficient coal level, make a positive contribution to the construction of ecological Chinabeautiful.