The difference between axial flow fan and centrifugal fan lies in their different airflow direction and structural form, as follows:
1. The airflow direction is different: the airflow direction of an axial fan is parallel to the axis, and the airflow inlet and outlet are on the same axis; The airflow direction of the centrifugal fan is perpendicular to the axis, and the airflow inlet and outlet are located at different axis positions;
2. Different structural forms: the central position of the axial flow fan is a hollow cylindrical shape, with long and narrow airfoil blades that bend up and down, similar to the propeller of an aircraft. The center of the centrifugal fan is a solid cylinder, with an impeller and a diffuser. The impeller blades are curved, similar to half a soybean.
3. Different fields of application: Axial flow fans are suitable for air ventilation equipment with high air volume requirements, such as large industrial machinery, underground garages, subways, high-speed railways, and other large public facilities; Centrifugal fan is suitable for air ventilation equipment with high requirements on lift and pressure, such as air conditioning, mold cooling, automobile spraying, building exhaust, etc.
Overall, both types of fans have their own advantages and disadvantages, and specific usage scenarios need to be selected according to actual needs.
