When the axial flow fan starts, the current of the motor will be 5-6 times higher than the rated value, which will not only affect the service life of the motor, but also consume more power. In the design process of the system, there will be a certain margin in the selection of the motor. The speed of the motor is fixed, but sometimes it runs at a lower or higher speed in the actual application process, so frequency conversion is often required. The inverter completes the soft start of the motor by changing the input voltage and frequency of the equipment, achieves the purpose of energy saving and speed regulation, and provides protection functions such as overcurrent, overvoltage and overload for the equipment.
Axial fans are divided into large axial fans, medium axial fans, and small axial fans. The appropriate axial fans are selected according to the application requirements.
How to save electricity using an axial flow fan? What can be done? Let us introduce the energy saving methods of axial fans.
1. Minimize the resistance of the pipe network, select the pipe diameter and equipment orientation reasonably, and install the inlet collector.
2. Control the radial clearance between the air duct and the top of the blade.
3. Reasonable selection of fan types to prevent fans from running in low-efficiency areas.
4. If the fan impeller is used alone, it must be equipped with a suitable motor, otherwise it will cause the phenomenon of pulling the trolley.
