Definition of centrifugal fan
During the operation of the fan, the air flow enters the blade space from the axial direction of the fan, and then rotates with the impeller under the drive of the impeller; On the other hand, the fan that increases energy under the action of inertia, leaves the impeller along the radius direction and does work by the centrifugal force is called centrifugal fan.
Centrifugal fan generally adopts single-stage single suction or single-stage double suction impeller, and the unit is arranged horizontally.
It is welded from the front disc, rear disc, hub and blade.
There is only one air inlet of the fan. There is only one air inlet and one air outlet.
The utility model comprises two front plates and a middle plate, and impeller blades are welded between the front plate and the middle plate.
There are two air inlets of the fan. There are two air inlets, double impeller structure and one air outlet.