风机广泛用于工厂、矿井、隧道、冷却塔、车辆、船舶和建筑物的通风、排尘和冷却；锅炉和工业炉窑的通风和引风；空气调节设备和家用电器设备中的冷却和通风；谷物的烘干和选送；风洞风源和气垫船的充气和推进等。风机的工作原理与透平压缩机基本相同，只是由于气体流速较低，压力变化不大，一般不需要考虑气体比容的变化，即把气体作为不可压缩流体处理。
Fans are widely used for ventilation, dust removal, and cooling in factories, mines, tunnels, cooling towers, vehicles, ships, and buildings; Ventilation and induced draft of boilers and industrial kilns; Cooling and ventilation in air conditioning equipment and household electrical equipment; Drying and selection of grains; Wind tunnel wind source and inflation and propulsion of hovercraft. The working principle of a fan is basically the same as that of a turbine compressor, but due to the low gas flow rate and little pressure change, it is generally not necessary to consider the change in gas specific volume, that is, treat the gas as an incompressible fluid.
风机分类可以按气体流动的方向阳雕刻 手套生产设备 果树反光膜 北京纯水设备 保定网站制作 排水槽模具，分为离心式、轴流式、斜流式和横流式等类型。风机根据气流进入叶轮后的流动方向分为：轴流式风机、离心式风机和斜流(混流)式风机。风机按用途分为压入式局部风机(以下简称压入式风机)和隔爆电动机置于流道外或在流道内，隔爆电动机置于防爆密封腔的抽出式局部风机(以下简称抽出式风机)。
Fans can be classified into centrifugal, axial, oblique, and transverse flow types based on the direction of gas flow. Fans are divided into axial flow fans, centrifugal fans, and diagonal (mixed flow) fans based on the direction of airflow entering the impeller. Fans are divided into pressed in local fans (hereinafter referred to as pressed in fans) and extractable local fans (hereinafter referred to as extractable fans) with explosion-proof motors placed outside or inside the flow channel, and explosion-proof motors placed in explosion-proof sealing chambers.