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.