锅炉静叶可调轴流风机失速分析  

Analysis on Stall Failure of Adjustable Static-blade Axial-flow Fan for Boilers

作　　者：孙树宽 

机构地区：[1]华能嘉祥发电有限公司,嘉祥272400

出　　处：《发电设备》2010年第1期46-50,共5页Power Equipment

摘　　要：目前300 MW以上燃煤发电机组一般都采用轴流式引风机,其中又以静叶可调式轴流风机占大多数。针对轴流风机在运行中避免失速问题进行了分析,指出静叶可调轴流风机失速的一种主要原因是调节叶片开度定位错误使风机运行在失速区,检查并纠正其开度指示后即可避免失速。At present,axial flow induced-draft fans are generally used for coal-fired power generation units above 300 MW,most of which are of the adjustable static-blade type.Stalling failure occurring in operation of the axial-flow fans was analyzed,during which the failure was found to be mainly caused by improper opening degree of adjustable blades that made air fan work in stalling zone.The problem can be solved by turning the blade opening to an appropriate degree.

关 键 词：锅炉 静叶可调 轴流风机 失速 预防措施 

分 类 号：TK223.26[动力工程及工程热物理—动力机械及工程]