沾化发电厂4号机组空气预热器改造

Air Preheater Reconstructed in the Zhanhua Power Plant No.4 Unit

针对沾化电厂4号机组空气预热器存在的漏风率大、排烟温度高等问题,从实际应用出发,分析其产生的原因,并在理论分析的基础上提出了复式密封措施,经实际应用后,取得了显著的经济效益。

In connection with the problems of air preheater leakage rate and higher exhaust gas temperature in the Zhanhua power plant No.4 unit. According to practical applications and analyzing their causes, it proposed a doublesealing measure on the basis of theoretical analysis and achieved significant economic benefits after the practical application.