高效低噪声离心式通风机的设计  

Design of High Efficiency & Low Noise Centrifugal Fan

作　　者：于慎波[1] 汪俭 边广韬[1] 冯欣[1] 

机构地区：[1]沈阳工业大学 [2]济宁高级技工学校

出　　处：《风机技术》2001年第1期9-11,共3页Chinese Journal of Turbomachinery

摘　　要：根据空气流场中空气动力性噪声的产生机理 ,分析并计算了离心式通风机叶轮中 ,气流相对加速度系数的变化对风机噪声的影响。编制一套计算软件并以此设计出一台离心式通风机。该风机采用较高效率的调速装置可节能 30 %左右 。The change of airflow convective accelerating factor to the effect of fan noise is analyzed & calculated according to the mechanism of aerodynamic noise generated in airflow field.A program is developed according to the models,and a centrifugal fan is also designed by means of the program.Furthermore,a speed adjusting unit of higher efficiency is used to the fan to save energy about 30% and further reduced the fan noise in actual operation.

关 键 词：离心式 通风机 噪声 计算 设计 

分 类 号：TH432[机械工程—机械制造及自动化]