How to save energy for axial flow fan in the use of frequenc

  In the process of using frequency converter, how to transform the axial flow fan to save energy? When the axial fan is started, the motor current 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 frequency converter of the axial flow fan. In the design of the system, there will be a certain margin in the motor selection. The speed of the motor is fixed, but in the actual use process, sometimes it needs to run at a lower or higher speed, so it is very necessary to carry out frequency conversion transformation. The frequency converter can realize the soft start of the motor, achieve the purpose of energy saving and speed regulation by changing the input voltage frequency of the equipment, and can provide the equipment with over-current, over-voltage, overload protection functions.

The transformation of axial flow fan plays a great role in energy saving of frequency converter. T4-72 and 4-72 are two different series of centrifugal axial-flow fans, which are the most commonly used fans in China and have better performance. They are both products recommended by the original Ministry of machinery industry. The performance and use of these two fans are similar, but there are some differences in structure. The obvious difference is that t4-72 is equal thickness blade bent from steel plate, and 4-72 is wing type blade. T4-72 FRP fan is actually made of FRP instead of steel plate according to the structure and size of t4-72. There are also FRP fans in 4-72.