流体机械

1999, (11) 15-18+3

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低噪声离心式风机的设计
Design of Low Noise Centrifugal Fan

于慎波,边广韬,冯欣,郑鹏,叶长龙,袁笛
Yu Shenbo et al(15)

摘要(Abstract):

根据空气动力性噪声的产生机理,分析并计算了离心式风机叶轮进风口处气流的速度方差及牵连加速度系数的变化对风机噪声的影响;并且给出了Y6 - 42No .10 锅炉引风机的设计计算及测试结果。
Mathematical models based on mechanism generated by aerodynamic noise are presented.The models are applied to guide to analyze and calculate airflow velocity mean square deviation and convective acceleration parameter on blade suction edge in fan impeller and evaluate the effect on fan noise and performance.A program is developed according to the models,also a Y6 42No.10 boiler draft fan is designed by means of the program.

关键词(KeyWords): 离心通风机;噪声;数值计算;设计
centrifugal fan,noise,numerical calculation,design

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作者(Author): 于慎波,边广韬,冯欣,郑鹏,叶长龙,袁笛
Yu Shenbo et al(15)

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