双吸多翼离心风机进口集流器偏心安装的试验研究  

Experimental Research on Eccentric Inlet of a Multi-blade Centrifugal Fan with Dual Inlet

作　　者：杨昕 温选锋[2] 袁民建[2] 陈望明 

机构地区：[1]广东顺威精密塑料股份有限公司,广东顺德528305 [2]西安交通大学,陕西西安710049

出　　处：《流体机械》2012年第2期1-4,19,共5页Fluid Machinery

摘　　要：以中央空调末端装置中广泛使用的双吸前向多翼离心风机为研究对象,试验研究了集流器偏心安装对风机性能与噪声的影响。研究结果表明:合适的集流器偏心安装位置有利于提高风机在不同工作转速下的性能。当偏距比ε=0.067、偏心角θ=180°时,可使风机具有较好的综合性能,而偏距比ε=0.067、偏心角θ=30°的方案更有利于改善风机的噪声特性,气动性能也略有提高。An experimental study is presented to investigate the effect of eccentric inlet on the aerodynamic performance and noise characteristic of a multi - blade centrifugal fan which is widely used in central air conditioning terminal unites. The results show that proper eccentric positions of the inlet are favorable for enhancing the fan performance at different working speeds. When the offset ratio of the inlet is set to 0.067 and the eccentric angle set to 180°, a better comprehensive performance is obtained. In other case, when the offset ratio of the inlet is set to 0.067 and the eccentric angle set to 30°, the noise characteristic of the fan is better and the aerodynamic performance is improved slightly.

关 键 词：多翼离心风机 集流器 偏心安装 

分 类 号：TH432[机械工程—机械制造及自动化]