对旋式局部通风机消声结构及降噪效果探讨  

Inquiring into the Silencing Structure of Contra-rotating Auxiliary Fan and Its Noise Reduction Effect

作　　者：刘铭伟[1] 

机构地区：[1]煤炭科学研究总院重庆分院

出　　处：《矿业安全与环保》1999年第A08期21-23,共3页Mining Safety & Environmental Protection

摘　　要：分析了对旋式局部通风机气动噪声产生的原因、影响因素和频谱特性，探讨了消声结构和消声材料的应用。Abstract The generation causes,influencing factors and spectrum characterisics of aerodynamic nois of Contra-rotating auxiliary fan were analyzed in the paper.The application of silencing construction and silencing material were probed and the results obtained through probing were demonstrated by experiments.

关 键 词：对旋式 局部通风机 气动噪声 降噪结构 试验验证 

分 类 号：TD724[矿业工程—矿井通风与安全] TD724.4