轴向间隙对对旋风机噪声特性影响的试验研究  

Experimental Study of Axial Clearance Influences on the Noise Characteristics of Contra-rotating Fan

作　　者：乔慧丽[1] 陈鱼[2] 何元新[2] 杨林[2] 

机构地区：[1]重庆理工大学 [2]煤炭科学研究总院重庆研究院

出　　处：《风机技术》2011年第1期16-18,共3页Chinese Journal of Turbomachinery

摘　　要：本文在大量试验测试的基础上,考察了对旋风机噪声频谱曲线和A声级随轴向间隙的变化情况,详细分析了旋转噪声和涡流噪声随轴向间隙的变化规律,为对旋风机的降噪研究提供一些参考依据。Based on the test study of the noise characteristics of some type of counter-rotating axial fan,the noise spectra curves and the variation curve of A-weighted sound level corresponding to various axial clearances are acquired.The variable regulations that the revolution and eddy noise change as the axial clearance varies are analyzed in detail.It provides a useful reference to decrease contra-rotating axial fan＇s noise.

关 键 词：声学 对旋式轴流通风机 噪声 轴向间隙 

分 类 号：TD441.2[矿业工程—矿山机电]