As the wind generated by the rotation of the impeller moves axially, the pressure is generated or less, or 9.8 × The fan with 10-3mpa compression ratio e < 1.1 is called axial fan.
Difference between centrifugal fan and axial fan:
The principle of generating wind pressure is different The axial flow fan drives the gas to move along the axial direction by the rotation of the blade, while the centrifugal fan is transported by the centrifugal force generated by the rotation of the impeller
2. The general axial fan rotor is exposed and bulky; The installation of centrifugal fan rotor is closed and small.
3. The air pressure produced by axial fan is very low, but the air volume is large; The centrifugal fan can generate high air pressure (up to 0.2MPa) through, while the air volume system generally has little impact.
Centrifugal axial flow fan
Advantages of centrifugal fan:
The layout of centrifugal fan is relatively simple, with large air volume and breeze pressure
Disadvantages of centrifugal fan:
Changing the flow of the medium duct, often to the air conditioning unit, is installed in the inlet, boiler drum, induced draft fan, and the like.
Advantages of axial flow fan:
The axial flow fan does not reverse the flow direction of the working medium in the air duct. It is easy to install and use. It is installed in the air duct design or in the front end of the air duct export enterprise.
Disadvantages of axial flow fan:
The air volume and pressure are very low, and the fan is generally in the fan.
