Rotaryairpreheater; air leakage; gap; reconstruction;
回转式空气预热器； 漏风； 间隙； 改造；
2
Theoretical analysis is done based on the heat transfer mechanism of rotaryairpreheater, and mathematical model is established correspondingly.
根据回转式空气预热器的传热机理进行了理论分析，建立了相应的数学模型。
3
The rotaryairpreheater, which is the widely used tail-end heat exchanging equipment in large capacity boilers with high parameters, has the fatal defect of a high air leakage rating.