摘要
提出隔声/消声管的测量方法用于含有多根高速介质管道的管廊噪声测量和噪声源辨别,并对某大型钢铁厂制氧区域管廊管道噪声进行现场测量,同时对管廊管道的噪声特性进行分析。结果表明,隔声/消声管法可有效地进行管廊各管道辐射噪声的测量和辨别。此外,受阀门、弯管等影响,沿长度方向管道噪声级是变化的,不同类型管道辐射噪声级不同,且通过管道壁面辐射的噪声频谱特性不同,提出对于含有不同类型的管道的管廊应根据各管道辐射噪声的贡献采取相应的隔声包扎结构进行降噪。
Portable sound insulation/noise-abatement tube method is presented to make efficient pipe noise measurement and identification of pipelines of pipe gallery in oxygen area for a large iron & steel plant,and the characteristics of pipe noise are analyzed. The results show that this method is effective and reliable. What's more,pipe noise changes along pipe length due to the effect of valves and bendings,and different pipes emit noise with different levels and spectral characteristics. It is suggested in this paper that proper pipe lagging structures should be applied to pipe gallery with different pipelines according to their noise contributions.
出处
《环境工程》
CAS
CSCD
北大核心
2008年第4期68-70,共3页
Environmental Engineering
