１概况对于燃煤火电厂，单位发电量的电耗和单位发电量的煤耗是考核发电成本的主要经济指标。而空气预热器的漏风率是直接影响煤耗和电耗的主要技术指标，原因是：（１）由于漏风的增大，造成煤内缺氧，使未完全燃烧损失增加，也就是说增加了煤耗。据测算漏风每增加５％，... 1 Overview Coal-fired thermal power plants, the unit of electricity consumption and unit of coal consumption is the main power generation cost assessment of the main economic indicators. However, the air leakage rate of the air preheater is the main technical index that directly affects the coal consumption and electricity consumption because: (1) due to the increase of the air leakage, the oxygen in the coal is reduced and the incomplete combustion loss is increased, that is to say, increased Coal consumption. It is estimated that every 5% increase of air leakage, ...