What is the difference between an axial fan and a centrifugal fan?
The former motor and fan are generally connected through the shaft, the latter motor is generally in the fan;
Axial roof fan is the same direction with the fan axis of the air, such as electric fans, air conditioning fan is the way the fan running fan. It is called "axial flow" because the gas flows parallel to the fan shaft. Axial fans are often used in situations where the flow rate is high and the pressure is low. The axial fan is fixed and moves the air.
Centrifugal roof fans are mechanical machines that rely on the input of mechanical energy to increase the gas pressure and send gas together. It is a driven fluid machine. Centrifugal fans are widely used for ventilation, dust and cooling in factories, mines, tunnels, cooling towers, vehicles, ships and buildings; ventilation and induced winds for boilers and industrial furnaces; cooling and air conditioning equipment and household appliances Ventilation; grain drying and selection; wind tunnel and hovercraft inflatable and propulsion.
The former often installed in the air conditioning unit into, exit, boiler drum, induced draft fan, and so on. The latter is often installed in the duct, or the duct outlet front.
Centrifugal roof fans change the flow of media within the duct, while the axial flow of the roof fan does not change the flow of media medium;
