This project is aimed at noise control of compressors. The structure adopts a portal , with composite sound absorption and insulation modules installed on the walls. The roof is made of rock wool sandwich panels. After the control is completed, the noise at a distance of 20 meters from the factory boundary and 100 meters from residential areas meets the requirements of Class II standards, which is not higher than 60dB (A) during the day and 50dB (A) at night.