Axial fan is generally composed of impeller, collector, casing, streamline cover, guide vane, diffuser and other parts.

1. The function of the impeller is to transfer the mechanical energy of the prime mover to the transported gas. It is a key component of the ventilator. The impeller is mainly composed of blades and a hub. The blade section may be airfoil or single-plate.
2. The combination of the collector and the streamline cover forms a tapered smooth channel, which is conducive to the smooth flow of air into the hub and the casing air duct, and reduces the loss of air inlet.
3. The casing is a gas flow channel formed with the hub, providing the mounting parts of the motor, the connecting parts with the foundation, the connecting flange with the pipeline and other components.
4. The guide vane can be divided into the front guide vane and the rear guide vane. The front guide vane and the front of the impeller make the airflow rotate, which can change the inlet airflow angle of the airflow into the blade, thereby changing the aerodynamic performance of the impeller; the rear wheel vane generates the airflow behind the impeller Part of the kinetic energy is converted into pressure rise.
5. The diffuser can convert part of the kinetic energy of the airflow to improve the static pressure of the fan, thereby also improving the static pressure efficiency of the fan.

Product parameters

Precautions

6. After the temperature rise of the main bearing is stable, the test run time shall be at least 8h. After shutdown, check the tightness of the pipeline, the clearance of the blade and the tightness of the screw and nut.