中央空调冷却塔机组噪声的治理

Noise control in the cooling tower of a central air-conditioning unit

中央空调集中制冷系统是目前住宅小区普遍采用的空调系统,但是系统冷却塔的噪声是一个严重的污染源。文章在对某小区中央空调冷却塔的噪声特性测试与分析的基础上,提出了具有针对性的控制措施,通过实际治理工作,使冷却塔的辐射噪声降低了10 dB以上,原来被污染的区域达到了2类区标准。

The central refrigerating system of central air-conditioning is commonly adopted in residential districts currently. However, the noise from the cooling tower of the system is a serious polluting source. In this paper, the noise from the cooling tower of a central air-conditioning unit in a certain residential district is tested, and the characteristics of the noise are analyzed, and then some corresponding control measures are put forward and implemented. Practical controlling effects are measured. The noise radiating from the cooling tower has been reduced by over 10 dB and the previously polluted area has met the district standard of class Ⅱ.