低低温电除尘器灰硫比计算及中国煤种分析  

CALCULATION OF DUST/SO_3 RATIO FOR LOW-LOW TEMPERATURE ELECTROSTATIC PRECIPITATOR AND ANALYSIS OF COALS IN CHINA

作　　者：何毓忠 赵海宝 郦建国 姚宇平 

机构地区：[1]浙江菲达环保科技股份有限公司,浙江诸暨311800

出　　处：《环境工程》2015年第2期76-79,共4页Environmental Engineering

基　　金：浙江省重大科技专项计划项目(2013C01054)

摘　　要：低低温电除尘技术是电除尘新技术,不仅可以提高电除尘器的除尘效率,改善电除尘器对煤种的适应性,还可除去烟气中大部分的SO3,已经成为日本燃煤电厂烟气治理的主流。烟气的灰硫比(D/S)是低低温电除尘器选型设计中的一个重要参数,是电除尘器是否会受到低温腐蚀的评判标准。对烟气灰硫比的定义,计算公式的推导,中国几种代表性煤种的灰硫比,以及灰硫比与腐蚀和提效幅度的关系作了深入的分析。为我国低低温电除尘器的研究和应用推广提供参考。Low-low temperature electrostatic precipitator（LLT-ESP） technology is a new technology and has become the mainstream method of smoke-gas treatment in Japan,as it can improve the collection efficiency of PM and SO3. D/S ratio（Dust/SO3ratio） which means the ratio of PM concentration（mg/m3） to SO3（mg/m3）,is one of the most important parameters in ESP selection and the measure of low temperature corrosion happens or not. It was analyzed the definition and formula of D/S ratio and calculated some representative coals in China. The relationship of D/S ratio to corrosion and the increase of efficiencies was given,which provided reference for study and application of LLT-ESP in China.

关 键 词：低低温电除尘技术 灰硫比 低温腐蚀 SO3 去除 

分 类 号：X701.2[环境科学与工程—环境工程]