Project introduction

Xiang 'an branch hospital affiliated to the first hospital of xiamen university, a 550KW diesel generator set is installed in the generator room. When the unit is in normal operation, it produces high decibel noise, which affects the hospital environment. Therefore, according to the environmental protection requirements, the noise in the generator room must be treated and meet the relevant environmental protection standards.

Install and install air inlet and exhaust mufflers 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 vibration absorber at the lower part of the unit and pipe, and install sound absorption wall and ceiling on the wall and ceiling of the generator room. 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 the noise standard of class 2 functional areas in table 2 in gb22337-2008 noise emission standard of social living environment.