风机异常振动的故障诊断与处理

Faults diagnosis and treatment on abnormal ibration of induced draft fan

引风机是通过叶轮转动产生负压,进而从系统(设备)抽取空气的一种设备,一般安装在锅炉尾端,用于排出炉膛内的热烟气.虽然经过了静电除尘设备,但是湿热气体中仍会夹杂着少量的粉尘,吸附在叶轮上会改变风机的平衡状况,引起较大的振动.本文介绍了一种风机平衡的分析和诊断方法,用于解决实际工作中的问题.

Induced draft fanis a kind of equipment which produces negative pressure by rotating the impeller and extracts air from the system. It is usually installed at the end of the boiler to extract hot flue gas from the furnace. Although it has passed through the electrostatic precipitator, there will be a small amount of dust in the humid and hot gas. Adsorption on the impeller will change the balance of the fan, causing greater vibration. In this paper was introduced an analysis and diagnosis method for fan balance in solving practical problems.