Recently, due to the increasing pollution of the air, whether in life or work, people's requirements for environmental quality have gradually increased, and many factories have paid more and more attention to the working environment. This has led to the introduction of many ventilation and ventilation equipment, at the same time, merchants are also constantly innovating and improving the performance improvement of ventilation and ventilation equipment. An important and indispensable part of these equipment is the fan, which is the main source of power and determines the size of the air volume.

It is reported that the fans commonly used in common equipment mainly include centrifugal fans and axial fans. Axial fan, that is, the air and the blade of the shaft of the same fan, such as electric fans, air conditioning outside the fan, the use of such fan gas will be parallel to the fan shaft flow, air volume and pressure are relatively small, the effect of pumping air is general. When the centrifugal fan works, the air flow enters the blade space from the fan shaft, the air is thrown out, and a vacuum is formed inside the wind wheel, which sucks the air in, which is a bit like a tornado. The use of centrifugal fans will be relatively large, but this does not mean that the speed of the fan is as large as possible, some high-speed centrifugal fans, can reach 2500 rpm , but high speed will also bring high noise, but also cause high static pressure (static pressure = wind pressure when the fan can not move the wind).

How to improve the performance of ventilation and ventilation equipment is not only a problem that its manufacturers need to think about, as a manufacturer of centrifugal fans and other fan products, how to improve the performance of centrifugal fans has become particularly critical. It can be seen that in the future, the market's requirements for centrifugal fans and other products will become higher and higher.