电站离心风机旋转失速机理分析及处理对策  

Mechanism Analysis on Rotating Stall of Centrifugal Fans for Power Plant and Corresponding Countermeasures

作　　者：刘哲[1] 王松岭[1] 吴正人[1] 张磊[1] 

机构地区：[1]华北电力大学能源动力与机械工程学院,保定071003

出　　处：《发电设备》2011年第2期94-97,共4页Power Equipment

基　　金：中央高校基本科研业务费专项资金资助项目(09QX67)

摘　　要：介绍了离心风机旋转失速的产生机理,对离心风机吸力侧和压力侧旋转失速形成原因进行了分析,并且对风机失速状态下的振动特性和发展过程进行了描述,揭示了离心风机失速的发展规律,提出了预防措施。An introduction is being presented to formation mechanisms of rotating stall encountered by centrifugal fans,while causes leading to two rotating stalls respectively occurring at the suction and pressure side analyzed.A description is made to vibration characteristics of fans under stall states,together with a stall development tendency revealed and necessary precautionary measures proposed.

关 键 词：离心风机 旋转失速 边界层分离 漩涡 

分 类 号：TK223.26[动力工程及工程热物理—动力机械及工程]