低低温电除尘与常规电除尘工程应用对比分析  

COMPARISON ANALYSIS ON LOW-LOW TEMPERATURE AND CONVENTIONAL ELECTROSTATIC PRECIPITATOR

作　　者：胡露钧 赵海宝 沈家栋 马湖刚 何毓忠 

机构地区：[1]浙江菲达环保科技股份有限公司,浙江诸暨311800 [2]同济大学浙江学院,浙江嘉兴314000

出　　处：《环境工程》2018年第1期67-70,61,共5页Environmental Engineering

基　　金：国家863计划:燃煤电站PM2.5捕集增效与优化技术与装备研制(2013AA065002);国家重点研发计划:高灰煤超低排放技术与装备集成及应用(2016YFC0203704)

摘　　要：低低温电除尘技术近年在国内燃煤电厂超低排放改造得到了规模应用。为了更有效地进行低低温改造,设计了蒸汽加热的瓷套热风吹扫装置,分析了华能阳逻电厂的3号炉低低温改造形式及改造效果,并与4号炉常规电除尘进行了比较。结果表明:与常规电除尘器相比,低低温电除尘器灰斗温度在90℃以上可保证灰顺利卸下,针刺线的积灰有所增加,高频电源二次电压及除尘效率更高。Low-Low temperature electrostatic precipitators（LLT-ESP） in recent years have been implemented in coal plants on a mass basis.The paper designed the hot air sweeping of insulators with steam heating system,analyzed and compared the forms and effects of LLE-ESPs of boiler 3 in Yangluo Plant with conventional ESP in boiler 4.The results indicated that the ash discharged smoothly,the hopper temperature was more than 90 ℃,dust on discharge wire was increased,the secondary voltage of high-frequency power was higher and the dust collection efficiency was increased when compared with conventional ESP.

关 键 词：低低温电除尘 热风吹扫 阴极系统 除尘效率 超低排放 

分 类 号：X773[环境科学与工程—环境工程]