CAJ | 학술논문

针对城市典型垃圾焚烧发电厂机械通风冷却塔的噪声污染问题,采用现场实际测量方法分析了冷却塔的主要噪声源和频谱特性,研究了冷却塔的淋水噪声、风机、电机噪声的治理技术方案.淋水噪声的治理包括塔内降噪与塔外声波阻隔两条途径,塔内治理采用落水消能降噪导流装置,塔外治理采用交错式吸声隔声屏衰减技术.风机和电机噪声的治理分别采取双层微穿孔板消声器和复合式百叶隔声屏法.结果表明,该方案的淋水噪声塔内降噪、塔外声波阻隔、风机及电机噪声的噪声削减量分别为6.1、16,2、15-18、14.6dB,冷却塔整体噪声削减量为15.15.1-6.1dB,治理效果良好.
침대성시전형랄급분소발전엄궤계통풍냉각탑적조성오염문제,채용현장실제측량방법분석료냉각탑적주요조성원화빈보특성,연구료냉각탑적림수조성、풍궤、전궤조성적치리기술방안.림수조성적치리포괄탑내강조여탑외성파조격량조도경,탑내치리채용낙수소능강조도류장치,탑외치리채용교착식흡성격성병쇠감기술.풍궤화전궤조성적치리분별채취쌍층미천공판소성기화복합식백협격성병법.결과표명,해방안적림수조성탑내강조、탑외성파조격、풍궤급전궤조성적조성삭감량분별위6.1、16,2、15-18、14.6dB,냉각탑정체조성삭감량위15.15.1-6.1dB,치리효과량호.
Noise pollution from mechanical ventilating cooling tower of municipal typical waste incineration power plant was studied, with analysis of main noise sources, producing mechanisms and spectral characteristics. Falling water noise decay of inside tower denoise together with sound wave obstructing outside tower, fan noise muffling technology with doublemicroperforated-panel muffler, and electric motor sound insulation using multiple shutter sound barrier were adopted to study control proposal of noise from falling water, fan and electric motor. Results showed that noise reduction was 15.1~16.1dB, with favorable effects.