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随着工业的发展,工业噪声已成为环境公害的一种,越来越引起人们的极大关注.工厂采用较多的风动工具,由于其噪声突出,严重影响操作者的身心健康和周围环境.为此,我们曾对ф150毫米风磨轮的噪声进行分析和治理,设计了一套微孔消声装置,设计的原则是既要有较大的降噪量,又不能降低原有功率和转速,而且具有重量轻,结构简单,制作,拆装方便,使用寿命长的特点.下面对微孔消声装置作一简述.一般说来,噪声是多种音频成分无规律的复合声,而风磨轮噪声源主要来自高速排
With the development of industry, industrial noise has become a kind of environmental pollution, attracting more and more people’s attention.Moreover, the factory uses more pneumatic tools, because of its noise, seriously affecting the operator’s physical and mental health and the surrounding environment To this end, we have on the ф150 millimeter wind wheel noise analysis and control, designed a set of microporous muffler device, the design principle is to have both a large amount of noise reduction, but also can not reduce the original power and speed , But also has the characteristics of light weight, simple structure, easy fabrication, disassembly and assembly, and long service life.A brief description of the microporous anechoic device will be given below.Generally speaking, noise is a complex composite sound with a variety of audio components, The wind mill wheel noise source mainly from high-speed row