降低通风机空气动力噪声的方法  

Reduction Methods of Air-flow Noise for Blower

作　　者：胡万华[1] 

机构地区：[1]华东交通大学机电工程学院,南昌330013

出　　处：《煤矿机械》2006年第8期63-64,共2页Coal Mine Machinery

摘　　要：通风机空气动力噪声强度大是通风机噪声的主要部分,且不易控制。分析了通风机空气动力噪声产生的机理,提出通过优化风机的蜗舌间隙、蜗舌半径以及叶道出口涡流区相对宽度等关键结构参数降低噪声的方法。The aerodynamic noise strength of the centrifugal blower is bigger, and it is the main block in the centrifugal blower noise, and don＇t easy to control. Mechanism of centrifugal blower creating aerodynamic noise is analyzed, and the methods for noise reduction by optimizing structure parameters such as volute throat gap, volute throat radial and relative width of swirl regions in exit blade channel are put forward.

关 键 词：通风机 气动噪声 噪声机理 

分 类 号：TD441[矿业工程—矿山机电]