燃煤电厂除尘器分级效率测量及分析  

Measurement and analysis for classification efficiency of dust removal in coal-fired power plant

作　　者：臧电宗 梅东升[1] 梁丁宏 苏金海 王勇 商升 

机构地区：[1]北京能源投资(集团)有限公司,北京100022 [2]浙江菲达环保科技有限公司,浙江诸暨311800

出　　处：《中国电力》2012年第2期45-48,共4页Electric Power

摘　　要：随着环保意识的提高,人们对空气中细微颗粒物的污染越来越关注。燃煤电厂是细微颗粒物的污染源之一。通过对燃煤电厂袋式除尘器、电袋复合除尘器、电除尘器出口排烟中PM10、PM2.5质量浓度的测试,证实不同型式除尘器对细微粉尘脱除存在差异。因此,应特别重视除尘器分级效率,从而正确选择除尘器型式。除尘器出口烟气中PM10、PM2.5、PM1.0等细微颗粒采用串级低压冲击仪分级收集。测试数据表明,对PM1O、PM2.5的脱除效果及除尘效率由高到低的排序均依次为电袋复合除尘器、袋式除尘器、电除尘器;电除尘器出口细微粉尘比例相对较小。People pay more and more attention on the fine particle pollution in the air with the improvement of environmental protection consciousness. Coal-fired power plant is one of the fine particle pollution sources. The difference of fine particle removal from different precipitators was confirmed by testing the PMIO and PM2.5 mass concentration in the outlet of bag filter, electrostatic-fabric integrated precipitator and electrostatic precipitator in coal-fired power plants. The attention on elassification efficiency of dust removal should he enhanced to choose the appropriate precipitator. Fine particles in outlet gas such as PM 1.0, PM 10 and PM2.5 were collected hy cascade low pressure impaetor. The test results show that the order of PM10 and PM2.5 removal efficiency from high to low is electrostalic-fabric integrated precipitator, bag filter, and electrostatic precipitator. The order of the dust removal efficiency from high to low is the same as above. The proportion of the fine particle in the electrostatic precipitator outlet dust is lower relatively.

关 键 词：燃煤电厂 电除尘器 袋式除尘器 电袋复合除尘器 分级效率 细微粉尘 PM10 PM2.5 

分 类 号：X773[环境科学与工程—环境工程]