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轴流通风机比A声级噪声限值的探讨 被引量:1

Discussion on Limited Noise Value with Specific A-weighted Sound Level for Axial Flow Ventilators
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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.
出处 《重庆大学学报(自然科学版)》 CAS CSCD 1995年第1期77-80,共4页 Journal of Chongqing University
关键词 噪声 比A声级 A声级 环境污染 通风机 noise specific A-weighted sound level A-weighted sound level environmen-tal pollution
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参考文献3

  • 1张重超,机电设备噪声控制工程学,1989年
  • 2智乃刚,风机噪声控制技术,1985年
  • 3团体著者,通风机,1983年

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