对旋轴流局部风机二级区域故障分析  

Failure analysis of the secondary region in the contra-rotating axial local fan

作　　者：周忠宁[1] 周忠彭[2] 许太山[1] 

机构地区：[1]中国矿业大学机电学院,江苏徐州221116 [2]中国矿业大学化工学院

出　　处：《矿山机械》2009年第3期19-21,共3页Mining & Processing Equipment

基　　金：江苏省自然科学基金项目资助(BK2005018);江苏省研究生科研创新计划项目(CX07B-061Z)

摘　　要：分别运用试验、理论分析等方法,对对旋轴流局部风机二级区域进行了研究。使用动态压力传感器测量压力脉动,运用信号分析方法对信号做了详细分析,同时结合理论,对流场细节进行了讨论。揭示了流场内压力脉动引起的二级叶轮工作环境恶化是各种故障产生的根本原因。Contra-rotating axial local fern＇s secondary region is researched by different methods, such as experiment, theoretic analysis and so on. Pressure pulsation signals are measured by dynamic pressure sensors, the signals were analyzed by various analysis methods and flow field details were analyzed with theoretic analysis. Environmental deteriorations led by pressure pulsation in coupling flow field are the root cause of the fan＇s faults.

关 键 词：对旋轴流局部风机 压力脉动 二级区域 故障分析 

分 类 号：TD441.2[矿业工程—矿山机电]