大型煤粉锅炉受热面管泄漏是影响发电厂安全运行的主要原因之一。分析了胜利发电厂670 t/h 超高压煤粉锅炉管泄漏原因,提出了治理措施,从而有效地解决了管子泄漏问题。关键词:能源与动力工程;锅炉;管子泄漏;螺旋肋片管;T91 钢;防磨材料Abstract : Leakage failure of heat2delivery surface tubes of large coal2fired boilers is one of the main factors affectingsafe operation of power plants. The cause of tube leakage occurring to a 670 tPh super2pressure coal2fired boiler is beinganalyzed , accompanied by some comprehensive countermeasures , which have effectively solved the leakage problem.Keywords: energy and power engineering ; boiler ; tube leakage ; spirally finned tube ; steel T91 ; erosion resistantmaterial