浅谈声学材料在排水管道降噪中的应用

对于我国现有的建筑物来说,许多年代较早的已建成建筑物都没有考虑到排水管道噪声给人们的居住环境带来的困扰。对于这种建筑为避免其噪声问题,进行排水管道的全部改造显然是不可行的,利用声学材料隔声包扎是一种有效、快速、经济的解决方法。本文利用电声学实验进行了声学材料与管材的组合包扎,分析了管材在不同频段的最适宜包扎材料,根据排水噪声特性选出最佳降噪材料。

DISCUSSION ON THE APPLICATION OF ACOUSTIC MATERIALS IN DRAINAGE PIPELINE NOISE REDUCTION

For our existing buildings,many buildings have been built years earlier did not take into account the people's living environment problems which caused by the drainage pipeline noise.For this buildings,the full transformation of drainage pipeline to solve the noise problems is clearly not feasible,however,the use of wrapping acoustic materials is an effective,fast and economical solution.In this paper,test the combination wrapping of acoustic materials and pipe by use electro-acoustics experiments,analysis of the most appropriate materials of each pipe in different frequency range,according to the characteristics of drainage pipeline noise to select the best noise reduction material.