一种双级动叶可调轴流风机的动平衡方法  

A Method of Dynamic Balance of Two-stage Adjustable-blade Axial Flow Fan

作　　者：王博磊 巩振泉 牟法海 Wang Bolei;Gong Zhenquan;Mu Fahai(HCIG Energy Science and Technology Research Institute Co.,Ltd.,Shijiazhuang 050051,Hebei,China)

机构地区：[1]河北建投能源科学技术研究院有限公司,河北石家庄050051

出　　处：《电站辅机》2023年第3期23-27,共5页Power Station Auxiliary Equipment

摘　　要：根据影响系数动平衡方法,提出一种适用于刚性短转子的改进双面影响系数动平衡方法。该方法适用于运行在临界转速以下、同方向测点振动相位相同,且振动数值差距较小的刚性短转子。通过振动测试,分析了双级动叶可调轴流风机振动数值增大的故障原因。应用该方法对风机进行动平衡处理,验证了该方法的有效性,同时减少风机的启停次数,节约检修时间。According to the influence coefficient dynamic balance method,an improved double-sided influence coefficient dynamic balance method suitable for rigid short rotors is proposed.This method is applicable to rigid short rotors that operate below the critical speed,have the same vibration phase at the same measuring point in the same direction,and have a small difference in vibration values.Through vibration test,the fault reason of two-stage adjustable-blade axial flow fan vibration value increasing is analyzed.The application of this method to the action balance treatment of the fan verifies the effectiveness of this method,while reducing the number of start-stop times of the fan and saving the maintenance time.

关 键 词：轴流风机 刚性短转子 动平衡 影响系数法 

分 类 号：TH432.1[机械工程—机械制造及自动化]