Centrifugal fans have been widely used in life and work […]
Centrifugal fans have been widely used in life and work by virtue of many advantages. Under normal circumstances, when designing a centrifugal fan, more attention is paid to its noise and air volume problems, but its backflow problems may be ignored. If you ignore this problem, you will find many problems and troubles in the later use.
Generally speaking, the main reason why the centrifugal fan equipment has the problem of backflow is that the design is unreasonable. Because most of the time in the design process, only its air volume or noise requirements are considered, so in actual use, its outlet will appear backflow. So, what are the consequences of the backflow phenomenon? What impact will it have on the design work?
This phenomenon will mainly bring about three negative effects:
The first point is that the outlet area of the centrifugal fan equipment cannot be fully utilized, that is, the actual air volume achieved is far from the design requirements. For users, work efficiency will be affected.
The second point is that it will affect the uniformity of the equipment air supply and affect the heat exchange performance of the evaporator.
The third point is that if there is a backflow phenomenon at the air outlet of the centrifugal fan, then during its operation, the backflow gas will collide with the high-speed rotating impeller, which will generate greater aerodynamic noise.
In summary, if the backflow problem is ignored in the design, it will have a great negative impact on the performance of the centrifugal fan equipment. Therefore, it is recommended that everyone must pay attention to this problem and take measures as much as possible to avoid it.