一、前言当前,高压系列通风机和鼓风机是噪声污染环境的主要气动设备,它的特点是声级高,频带宽,影响范围广。厂矿企业的劳保,环保部门,已开始着手治理或拟定计划。为了便于广大的工程技术人员,在缺乏测量仪器设备的情况下,能够了解掌握该设备的噪声特性,现将我们调查统计结果,公布于众,供大家参考。 I. Introduction At present, the high-pressure series ventilators and blowers are the main aerodynamic equipment for noise pollution of the environment. It features high sound level, wide frequency band and wide range of influence. Factories and mines, labor insurance, environmental protection departments, has begun to govern or draw up plans. In order to facilitate the majority of engineering and technical personnel in the absence of measuring instruments and equipment, can understand the noise characteristics of the device, now we survey statistics, published in public for your reference.