Everyone knows that negative pressure fans are divided into centrifugal and axial flow. What is the difference between the two?

　　 1. The centrifugal negative pressure fan changes the flow direction of the medium in the duct, while the axial negative pressure fan does not change the flow direction of the medium in the duct;

　　2, the installation of the centrifugal negative pressure fan is more complicated;

What is the difference between centrifugal and axial flow negative pressure fans?

　　3. The centrifugal negative pressure fan motor and the fan are generally connected by a shaft, and the axial flow negative pressure fan motor is generally in the fan;

　　4. Centrifugal negative pressure fans are often installed at the inlet and outlet of air conditioning units, boiler drums, induced draft fans, etc. Axial negative pressure fans are often installed in the middle of the duct or at the front end of the duct outlet.

　　 There are also diagonal flow (mixed flow) fans. The wind pressure coefficient is higher than that of axial flow fans, and the flow coefficient is larger than that of centrifugal fans. The gap between the axial flow fan and the centrifugal fan was added. At the same time, it is simple and convenient.