摘要
通过对炼油厂催化装置主风机排放噪声的测定、比较，结果表明：在放空口安装小孔喷注消音器后，噪声值由１１０ｄＢ（Ａ）降为９２ｄＢ（Ａ），减噪量为１８。此消音器结构简单、施工方便、成本低、寿命长、对大气无污染、消音效果好，值得推广。
The noise in FCC air feeder was examined and compared shows that the noise value decreased from 110 dB(A) to 92 dB(A), the decrement was 18,when the small-bore jet noise muffler installed in blow-off vent. This noise muffler has easy installation, simple in structure, long life, cheap and no pollution for air. It is worth to popularly used.
出处
《石油化工环境保护》
1994年第1期43-46,共4页
Environment Protection in Petrochemical Industry
