Directing against problems of worn out and leakage on economizer of boiler no3 in Tongliao Power Plant, the causes leadi摘要针对通辽发电厂3号炉省煤器磨损泄漏问题，分析了磨损原因，并进行了省煤器的改造。
In retrofit, measures of not varying the main body and changing over to use membrane economizer for enhancing wear-resis改造采取主体不变，改用膜式省煤器的措施来提高受热面的耐磨性。