轴流通风机比A声级噪声限值的探讨  

Discussion on Limited Noise Value with Specific A-weighted Sound Level for Axial Flow Ventilators

作　　者：俞济梁[1] 周晓军[1] 

机构地区：[1]重庆大学资源及环境工程学院

出　　处：《重庆大学学报（自然科学版）》1995年第1期77-80,共4页Journal of Chongqing University

摘　　要：论证了现行ＪＢ／ＴＱｈ３４１－８４部颁标准中用比Ａ声级限值来判定轴流通风机噪声特性的不准确性，并提出了Ａ声级限值标准及对高压大流量轴流通风机应采取的降噪措施。The limited Value of specific A-weighted sound level in the present standard JB/TQh341-84 promulgated by the Ministry,which is applied to determine the unaccuracy of noise characteristics for axial-flow ven tilators has been discussed,Simultaneously a measure that should badopted to reduce the noise of high-pressure&great-flow axial flow ven tilators and a limited standard value for A-weighted Sound level have been also presented,This can not only keep the noise of ventilators up to A-weighted sound level.but also can decrcase the noise of ventilators properly. Purthermore this can make the noise standard for axlal flow ventilators be more scientific and more practica ble.

关 键 词：噪声 比A声级 A声级 环境污染 通风机 

分 类 号：TH43[机械工程—机械制造及自动化] TB53[理学—物理]