摘要
冷风系统噪声是大型火电厂众多噪声中最为突出的一个,绝大部分区域Leq在100 dB左右,必须进行治理。通过对冷风系统主要发声源风管的噪声发生机理进行分析后,针对性地采用DPDF型阻尼材料对其进行治理,并得到了理想的效果。
The noise of cold wind system is the most conspicuous one of all kinds of noises in large power plants. In most of the areas of the plants, its equivalent sound intensity Leq is about 100 dB. Thus,noise control is important. In this paper, the noise mechanism of ventiduct in the cold wind system is analyzed. The DPDF type damping material is used for noise control. The effect is very good.
出处
《噪声与振动控制》
CSCD
北大核心
2009年第3期152-155,共4页
Noise and Vibration Control
关键词
声学
冷风管道
火电厂
阻尼
降噪
acoustics
cold-wind ventiduct
power plant
damping
noise reduction
