机力通风冷却塔噪声控制

Noise Control of Mechanical Ventilation Cooling Towers

机力通风冷却塔广泛应用于CBD等大型公共建筑中的中央空调循环冷却水系统,其运行时的噪声对周边环境的影响很大。文章针对机关办公楼使用的3组共7台机力通风冷却塔,通过声学仿真技术,定量分析了冷却塔对周边环境的噪声影响,提出了综合治理方案,并预测评价了治理效果;方案实施后进行了测量,并与预测评价进行对比分析,结果显示,方案设计阶段的仿真预测结果与实测结果基本相吻合,仿真模型准确可靠。

Mechanical draft cooling towers are mostly applied in cooling water circulation systems for central air conditioners in large public buildings such as CBD.They usually cause a great impact on the ambient environment when they operate.Based on seven mechanical draft cooling towers of the three groups used by the administrative office building and through the acoustic simulation technology,this paper analyzes the cooling towers to cause the noise impacts on the ambient environment,puts forward the comprehensive treatment scheme of noise control and forecasts and assesses the control effects.Afterwards,the paper carries out the detailed measurements of the actual control effect and the comparative analysis of the forecasting assessment after the implementation of the project.The results show that the simulation prediction result is basically consistent with the actual measurement result,and the simulation model is accurate and reliable.