午夜无码十八禁在线观看_黄色软件抖阴_高清露脸对白啪啪_国产午夜亚洲精品不卡网站_伊人中文字幕无码久久综合_女18一级大黄毛片免费女人_国产亚洲香蕉视频中文字一区二区_綜合精品自拍亂倫_国产超薄肉丝袜视频在线观看_男人的天堂亚洲无码

Xiamen third hospital

Column:Building noise control Time:2019-09-24
shared:



Project introduction

In xiamen no. 3 hospital, the standby generator room, air conditioning room, wind machine room and other units produce high-decibel noise during normal operation, which affects the hospital environment. Therefore, according to the environmental protection requirements, the above equipment room noise must be treated and meet the relevant environmental protection standards.


Install air inlet and exhaust muffler to reduce the noise of air inlet and exhaust of the generator set; Install impedance composite smoke exhaust muffler; Install class a steel fire proof glottis; Install anti-vibration devices at the lower part of the generator set and air-conditioning set and pipelines, and install sound absorption walls and ceiling in the equipment room; Install sound insulation hood, etc. Project implementation, the room around 1 m outside the red line, to meet the emission of environmental noise within the boundary of industrial enterprises "the Ⅱ GB12348-2008 standard. Namely, daytime ≤60dB(A) and night ≤50dB(A). The top of the machine room meets 2: noise standard for class 2 functional areas in table 2 in gb22337-2008, noise emission standard for social living environment.