The Main Difference Between Centrifugal Fan And Axial Fan
Nov 18, 2022| 1. The centrifugal fan changes the flow direction of the medium in the air duct, while the axial flow fan does not change the flow direction of the medium in the air duct;
2. The installation of the former is more complicated;
3. The former motor and fan are generally connected by a belt to drive the rotating wheel, while the latter motor is generally inside the fan;
4. The former is often installed at the inlet and outlet of air conditioning units, boiler drums, induced draft fans, etc. The latter is often installed in the middle of the air duct, or at the front end of the air duct outlet.
In addition, there are oblique 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. It fills the gap between axial fans and centrifugal fans. At the same time, it has the characteristics of simple and convenient installation. A mixed-flow (or axial-flow) fan combines features of both axial and centrifugal fans, although it looks more like a traditional axial fan. The curved plate-shaped blades are welded to the conical steel hub. Flow is varied by varying the vane angle in the inlet housing upstream of the impeller. The enclosure can have an open entrance, but more commonly it has a right-angle bend shape that allows the motor to be placed outside the duct. The expulsion shell expands slowly to slow the air or gas flow and convert kinetic energy into useful static pressure.