摘要
提出了关于鼓风机噪声治理的一种方法———抗性消声器 (干涉消声器与扩张室消声器相结合 ) ,利用管道的声学特性和原理 ,使声能抵消或衰减 ,从而达到消声的目的。经治理 ,噪声的声压级可降量为 30dB (A声级 )左右 ,效果显著。
A novel method of reducing noise by using a reactive muffler that integrates the interference muffler and muffler with an expansion chamber was developed. According to acoustic characteristics and principles of pipes,this method could reduce the noise by counteracting or attenuating the acoustic energy.It has been proved that the sound pressure could be cut down to about 30dB(A sound level)and significant results were achieved by adopting this novel metod.
出处
《云南冶金》
2001年第1期32-34,共3页
Yunnan Metallurgy
