Working principle of axial flow fan

The working principle of the axial flow fan is mainly based on the rotation of the impeller. The airflow generated by the impeller accelerates and flows axially, thereby realizing the flow and transportation of air.

The axial flow fan is internally composed of a motor, an impeller, and a casing. The motor is the power source of the fan. It converts electrical energy into mechanical energy to drive the impeller to rotate. When the impeller starts to rotate, air is sucked in and flows along the axial direction. The blades on the impeller push the gas, causing the gas to accelerate and advance along the axial direction, forming axial flow. The working process of the axial flow fan can be divided into two stages, air intake and exhaust. When the motor is started, the air naturally flows into the inside of the blower barrel and then passes through the blades of the impeller to accelerate the air and generate pressure. As the impeller rotates Continuously rotating, the air gradually increases its speed and pressure, forming an airflow. When the airflow reaches sufficient speed and pressure, the gas passes through the outlets arranged along the axis of the axial flow fan and then is discharged to the external environment to complete the exhaust task.

In addition, the blades of axial flow fans can generally rotate at an angle. Most axial flow fans are equipped with a set of blade hydraulic adjustment devices. When the fan is running, the installation angle of the blades can be adjusted through the blade hydraulic adjustment device and maintained at a certain angle. At a certain angle, it still has high efficiency when working under changing working conditions.