The air extraction efficiency of a centrifugal fan is related to the air volume of the fan, and it is a problem that users are more concerned about improving the air extraction efficiency of the fan.
Ways to improve pumping efficiency:
First of all, for centrifugal fans, the convexity of the partition is directly related to the air extraction efficiency of the fan. Due to the convexity of the partition, the airflow field is extremely irregular, making the air extraction effect poor. Changing the shape of the air extraction baffle and adopting the layout is very helpful for the improvement of the air extraction efficiency of the centrifugal fan, and this is also a widely used method.
Secondly, the air extraction efficiency of the centrifugal fan will also be affected by other factors such as the outside world. In a stable air flow field, the stability of the air extraction efficiency of the fan can be well maintained. Once the circumferential uniformity and radial direction are damaged Uniformity may arouse unconventional flow phenomena such as fan stalls.