电除尘器除尘效率影响因素分析及应用

(湖北华电武昌热电公司,武汉430070)[]详细分析了影响电除尘器除尘效率的几个主要因素:首先是燃煤的成份烟尘的特性以及烟气条件等;其次是电除尘器的技术状况;第三是运行条件[]电除尘器;除尘效率;烟气流量;集尘面积;驱进速度[]TK223[]A[]1006-3986(2007)03-0058-03AnalysisandApplicationoftheInfluenceFactorsAffectingDedustingEfficiencyofElectrostaticDedusterZHUFeng(HubeiHuadianWuchangThermalPowerCompany,Wuhan430070,China)[Abstract]Severalmainfactorsthataffectdedustingefficiencyofelectrostaticdedustehavebeenanalyzedindetai.lTheyare:firstly,theelementofcoa,lthecharacteristicofsmokeandtheconditionofgasetc,secondly,thetechniquestatusoftheelectrostaticdeduster,thirdly,therunningcircumstances.[Keywords]electrostaticdeduster;dedustingefficency;fluegasflowquantity;specificcollectingsur-face;moveforwardspeed11.1()1,1104/cm,,,,1104~51010/cm,,,,,,,,1011/cm,,,,[]2007-02-04[](1963-),,,,,,,,,,,11011/cm,,,(SO3)1.1.1煤成分的影响,,SO2,SO2,SO3,SO3,,,,,,,,,,,,5831320076湖北电力Vo.l313Feb.2007,,,,,,1.1.2煤灰成分的影响SiO2,Al2O3,Fe2O3,CaO,MgO,SO3,Na2O,K2O,P2O5,Li2OTiO211,SiO2,Al2O3,CaONa2O,K2O,Fe2O3,P2O5,Li2O,SO3,,Na2O,,,,,1.1.3飞灰中可燃物含量的影响,,,,,,,1.1.4粉尘粒度和灰熔点的影响(d1u),,d1u,,,,,,,,,,1.1.5烟气温度的影响,,,SO3,SO3,(),,150,,,1.1.6烟气湿度的影响,;,1.1.7烟气成分的影响,,N2H2,,,SO2H2O,,,,,,,,,,,1.1.8烟气露点温度的影响H2OSO2,H2OSO2,,1.1.9烟气含量的影响,K,,,,1.21.2.1极配形式电流密度分布的重要性,,,,,,,,,,RS,,,,,,59Vo.l313Feb.2007湖北电力31320076,,RSBRS,r=0.4,,RSB,,,,60kV,1.2.2极间距的影响宽间距的优越性,,,300mm300mm,,,,1.2.3设备制造安装精度的影响(1);(2):,,,,,,,,(3):,,,,,,150,,,,,,,1.2.4气流分布的均匀性,15m/s,1m/s,15,,,,,1.2.5供电质量及供电区大小的影响,,,1.31.3.1运行电压和电流的影响,,,,,,,,,,,(),,1.3.2保持绝缘子和电场清洁(1):,,,,,,,,,,(2),:,,(),,,,,,2,,,,;,,,,6031320076湖北电力Vo.l313Feb.2007