很多用户会因为不知道轴流风机和离心风机的区别买错了产品，达不到预期效果。那么如何区分轴流风机和离心风机呢？

　　Many users will buy the wrong products because they don't know the difference between axial flow fan and centrifugal fan, and can't achieve the expected effect. So how to distinguish axial fan from centrifugal fan?

　　轴流风机和离心风机是风机两种不同的产品，主要功能都是进行通风换气的设备，主要从以下4个方面来区分。

　　Axial flow fan and centrifugal fan are two different products of fan. Their main functions are ventilation equipment. They are distinguished from the following four aspects.

　　一、外观不同：

　　1、 Different appearance:

　　轴流风机外观呈圆筒型，离心风机的外观呈蜗牛型。轴流风机的电机连接一般都是在风机的机体，离心风机电机靠轴连接，一般是外置在风机抽风筒外。

　　The appearance of axial-flow fan is cylindrical, and that of centrifugal fan is snail type. The motor connection of axial flow fan is generally in the body of the fan, and the motor of centrifugal fan is connected by shaft, which is generally outside the fan exhaust duct.

　　二、排风方向不同：

　　2、 The exhaust direction is different:

　　轴流风机的排风方向是沿着轴的方向直排，风机的进风口和排风口是在一条轴平行线上，离心风机的排风方向是垂直于进风口方向的。

　　The exhaust direction of axial-flow fan is along the axis direction, the air inlet and exhaust outlet of the fan are on a parallel axis line, and the exhaust direction of centrifugal fan is perpendicular to the direction of air inlet.

　　三、安装方式不同：

　　3、 Different installation methods:

　　轴流风机的安装比较简单，一般是直接安装在墙上或者连接风管。离心风机安装比较复杂。

　　The installation of axial flow fan is relatively simple, which is usually directly installed on the wall or connected with the air duct. The installation of centrifugal fan is complicated.

　　四、风量和风压的不同：

　　4、 The difference of air volume and air pressure:

　　轴流风机的风量比较小，而离心风机的风压比较大，管道弯头多，排风和送风距离都比较远，管道阻力大，就必须使用离心风机，譬如大楼新风机。

　　The air volume of axial-flow fan is relatively small, while the wind pressure of centrifugal fan is relatively large, there are many pipe elbows, the distance between exhaust and supply air is relatively far, and the pipeline resistance is large, so centrifugal fan must be used, such as the fresh air fan of building.