流体机械

2013, v.41;No.493(07) 1-4+32

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不同叶片冲角离心泵内流诱导振动噪声研究
Analysis of Flow Induced Vibration and Noise in Centrifugal Pumps with Different Blade Inlet Incidence Angle

王勇;刘庆;刘东喜;王健;唐晓晨;
WANG Yong1,2,LIU Qing1,LIU Dong-xi1,WANG Jian1,TANG Xiao-chen2(1.Jiangsu University,Jiangsu 212013,China;2.Jiangsu Zhenhua Pump Industry Manu facturing Co.Ltd.,Taizhou 225500,China)

摘要(Abstract):

基于离心泵流动诱导振动噪声的试验测试系统,测量了不同叶片进口冲角模型泵在全流量范围内的振动和噪声信号并对其进行了处理和分析。研究结果表明:叶片进口冲角存在一个最优值,使离心泵的性能最佳;模型泵内部流动诱导的振动对泵体的影响最大,随着叶片进口冲角的增加,在各流量下模型泵噪声信号的轴频和叶频能量峰值均没有明显变化规律,但当叶片进口冲角为9°时,在1750~2250Hz频段内的噪声信号消失。
Based on the centrifugal pump closed experimental rig,the flow induced vibration and noise signals of model pump with different incidence angle in the full flow range are measured and analyzed.Research results show that there is an optimal value for performance of centrifugal pumps,the influence of flow induced vibration on volute is the largest.As the increase of blade inlet incidence angle,under different conditions,the shaft frequency and blade passing frequency peak of noise signal varied intricately,but when the incidence angle is 9°,the noise signal in 1750~2250Hz disappears.

关键词(KeyWords): 离心泵;冲角;振动;噪声;试验
centrifugal pump;incidence angle;vibration;noise;experiment

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基金项目(Foundation): 国家自然基金项目(51239005;51079062,51179075);; 国家科技支撑计划项目(2011BAF14B03);; 江苏省博士后科研计划资助项目(1202076C);; 江苏高校优势学科建设工程项目;; 江苏省企业博士集聚资助计划;; 江苏大学高级人才基金资助项目(12JDG044)

作者(Author): 王勇;刘庆;刘东喜;王健;唐晓晨;
WANG Yong1,2,LIU Qing1,LIU Dong-xi1,WANG Jian1,TANG Xiao-chen2(1.Jiangsu University,Jiangsu 212013,China;2.Jiangsu Zhenhua Pump Industry Manu facturing Co.Ltd.,Taizhou 225500,China)

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