Working principle of centrifugal fan and turbocompressors are basically the same, were due to low gas flow rate, pressure little change, there is generally no need to consider gas volume change, that as incompressible gas processing.
D-and l-centrifugal fan can be made into two types. From the motor side face Ye Lunshun clockwise rotation, called the right fan impeller counterclockwise rotation, called left Rotate fan.
Centrifugal blower casing, shaft, bearing impeller, drive mechanism and motor and other components.
Chassis: made of steel plate is firm and reliable, but for whole and half-open, half-open type is handy for maintenance.
Impeller: Blade, curved front disc and after a flat disk.
Rotor: static and dynamic balancing should be done to ensure steady rotation, and good performance.
Drive: shaft, bearing boxes, rolling bearings and pulleys (or couple).