在上海市固定源低噪声控制区建设中发现厨房排风机的噪声污染在目前是一个比较突出的问题,尤其是各大宾馆,厨房排风系统的位置一般处于宾馆主体建筑物的背面,与周围民宅相毗邻或相距不远,而且风口直接指向民宅,因此严重影响居民的正常生活,矛盾比较尖锐。 厨房排风机的噪声治理和一般风机情况不同,除了它的压力比较低,要求配置的消声器阻力损失小外,在其排出的气体中还带有大量油污,使一般的消声器在短期内很快失效。另外厨房空间都比较小,很难找到安置噪声控制 In the fixed source low noise control area in Shanghai found that the kitchen exhaust fan noise pollution is currently a more prominent issue, especially the major hotels, kitchen exhaust system location generally in the back of the hotel main building, with the surrounding Residential adjacent or not far away from, and the outlet directly point to the house, thus seriously affecting the normal life of residents, contradiction sharp. Kitchen exhaust fan noise control and the general fan situation is different, in addition to its low pressure, the required configuration of the muffler resistance loss is small, in its discharge of gas also with a lot of oil, the muffler in the short term general failure . In addition the kitchen space is relatively small, it is difficult to find placement noise control