What are the Key Components of a Exhaust Rotor Centrifugal Blower Fan?

The impeller is the core part of a exhaust rotor centrifugal blower fan. The shape and quantity of the impeller blades have a significant impact on the performance of the fan. The common blade shapes in our company include forward blades, backward blades and radial blades. The bending direction of the forward blades is the same as the rotation direction of the impeller. Under the setting of the same rotational speed for this exhaust rotor centrifugal blower fan, it can generate a relatively high pressure, but the efficiency is relatively low. The bending direction of the backward blades is opposite to the rotation direction of the impeller, which results in higher efficiency and relatively lower noise. Radial blades fall somewhere in between.

The main function of the casing in a exhaust rotor centrifugal blower fan is to collect the gas thrown out from the impeller and guide the gas towards the outlet. Its shape is usually volute, and this shape helps gradually convert the kinetic energy of the gas into pressure energy.

Exhaust rotor centrifugal blower fans are also divided into air inlets and air outlets. The air inlet is responsible for introducing gas into the fan. Its design should take into account how to evenly distribute the gas into the impeller to reduce flow losses. The outlet of the exhaust rotor centrifugal blower fan conveys the gas that has been accelerated and pressurized by the impeller to the required location.