山东建筑工程学院学报2001，Vol.16Issue(2)：25-29,5.
济南污水处理厂噪声评价与治理
The noise assessment and control of Jinan Sewage Disposal Factory
周兆驹 1姜向东 2阎济1
作者信息
- 1. 山东建筑工程学院建筑技术科学研究所,
- 2. 济南污水处理厂,
- 折叠
摘要
Abstract
The noise pollution of the aeration system is heavy in the Jinan Sewage Disposal Factory, and the noise at boundary of the factory exceeds the national standard limit by 30.5 dB(A). The noise of the aeration system consists of the noise of root blowers, pipeline and flow. According to the noise assessment the regenerative noise of pipelines is the main noise source. On the basis of noise assessment and to avoid moving quipment, measures such as the following are adopted to reduce the regenerative noise: installing dissipative-reactive silencers at the vent of Roots blowers and the entrance of main pipeline, mitigating the section variation between the confluent pipe and main pipeline, increasing their section area and replacing the thin stainless steel pipes with thick simple steel ones. Further approaches are employed as well to reduce the noise pollution from Roots blowers, including moving the inlet of the noise isolation hood of Roots blowers indoors from outside, to bottom from top, and increasing the noise insulation factor of enclosed structure of blowers room. After these measures were adopted, the measured noise level at the boundary is 43.5 dB(A), meeting with the national standard.关键词
污水处理厂/噪声评价/噪声治理/罗茨风机/管道分类
通用工业技术引用本文复制引用
周兆驹,姜向东,阎济..济南污水处理厂噪声评价与治理[J].山东建筑工程学院学报,2001,16(2):25-29,5.
