火电厂自然通风冷却塔噪声治理研究  

Research on Noise Control of Natural Ventilation Cooling Towers in a Thermal Power Plant

作　　者：马琪顺 鄢晓忠[1] 林日成 何旭 吴爱军 陈绍龙 MA Qishun;YAN Xiaozhong;LIN Richeng;HE Xu;WU Aijun;CHEN Shaolong(School of Energy and Power Engineering,Changsha University of Science and Technology,Changsha 410114,China;Guodian Hunan Baoqing Coal Power Co.,Ltd.,Shaoyang 422000,Hunan,China)

机构地区：[1]长沙理工大学能源与动力工程学院,长沙410114 [2]国电湖南宝庆煤电有限公司,湖南邵阳422000

出　　处：《噪声与振动控制》2022年第1期200-205,共6页Noise and Vibration Control

摘　　要：湖南某火电厂配备两台双曲线自然通风冷却塔,冷却塔运行时噪声对周围居民影响较大。针对该问题,基于Cadna/A噪声预测评估软件,研究自然通风冷却塔在实施降噪网和声屏障联合降噪措施前后的声场分布。通过将预测值与现场实测值相比较,验证Cadna/A软件对该类冷却塔噪声计算的准确性,结果表明使用Cadna/A软件对火电厂自然通风冷却塔进行噪声研究是合适的。对于火电厂冷却塔,采用声屏障和降噪网联合降噪方案具有很好的降噪效果。A thermal power plant in Hunan Province is equipped with two hyperbolic natural ventilation cooling towers,but the noise generated during the operation of the cooling towers seriously affects the lives of the surrounding residents.Aiming at this problem,based on the noise prediction and evaluation software Cadna/A,the sound field distributions of the natural ventilation cooling towers before and after installing the denoising network and noise barriers are studied.By comparing the predicted value with the in-site measured value,the correctness and accuracy of the Cadna/A code for the noise calculation of this type of cooling towers are verified.The results show that the Cadna/A code is effective and applicable for noise research of natural ventilation cooling towers in thermal power plants.For cooling towers in thermal power plants,the noise reduction scheme combining noise barriers with denoising network can achieve a good noise reduction effect.

关 键 词：声学 冷却塔 噪声 噪声治理 模拟研究 

分 类 号：TU112.3[建筑科学—建筑理论]