The article states that the noise of main axial compressor set in giou giangrefinery is reduced by measn of noise inoulator cover and ting hole noise silencer,and asatisfactory enviroment is obtained.

• 本文论述了采用隔声罩和微孔消声器降噪的方法，降低了九江炼油厂主风机组的噪音，获得了良好的环境。