一、除尘用风机 1.概述除尘用风机通常为离心式通风机,它由叶轮和机壳组成。根据叶轮上叶片形状的不同,风机性能的差异也很大。叶轮可分为以下三种类型: (1)后弯叶片型其叶轮上的叶片朝风机旋转相反的方向倾斜。特点是比转数高,效率高,尤其是当风量和风压增高时,具有不过负荷的特点。适用于一 First, the fan with dust 1. Overview Dust fan is usually centrifugal fan, which consists of impeller and chassis. Depending on the shape of the blades on the impeller, fan performance varies widely. Impellers can be divided into the following three types: (1) Backward-curved vanes The vanes on the impeller are inclined toward the opposite direction of fan rotation. Features are higher than the number of revolutions, high efficiency, especially when the wind and wind pressure increases, but with the load characteristics. Apply to one