Subsequently , we introduce some monitoring model and implement currently used , then we release our model , which suit the 1 # boiler of beilun power plant , on the basis of the models before . our model is subdivided into three categories , each category suit the heat exchanger of deferent type : the furnace , convective surface and trisector air preheater , all these categories use clean factor as the indication of the soot desposition level 首先介绍了锅炉灰污染危害的现状，对比研究了国内外的灰污染监测手段和监测模型，并针对北仑1 #锅炉，建立了锅炉各受热面灰污染监测模型，这些监测模型分为炉膛、对流受热面、以及三分仓空预器三种类型，采用清洁因子作为受热面灰污染状况的指标。
