一、引言 无论是大型的石油化工企业还是一般化工厂或火力发电厂等都有蒸汽锅炉、蒸汽管网,生产过程中需要放空,放空口安装小孔消声器后会大大降低放空噪声、改善环境的物理污染。 一般讲小孔消声器的设计计算内容包括四个方面。 1.热工计算:用以求取排汽管的通流能力是否符合要求的排放汽量,从而确定所选排汽管径是否合理。 I. Introduction Both large-scale petrochemical enterprises or general chemical plants or thermal power plants have steam boilers, steam pipe network, the production process needs to vent, vent hole installation muffler hole will greatly reduce the noise, improve the environment Physical pollution. Generally speaking, design and calculation of small hole muffler includes four aspects. 1. Thermal calculation: to determine whether the flow capacity of the exhaust pipe meets the requirements of the amount of exhaust gas, to determine the selected exhaust pipe diameter is reasonable.