blower
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Why does a blower surge?
I don’t know much about blowers! How high can the outlet pressure be?
The principle of a blower should be similar to that of a centrifugal pump
The system load is too low or the system resistance is too high
Blowers can be generally divided into three categories: positive-displacement, centrifugal, and axial-flow. Surge mostly occurs in centrifugal fans or axial flow fans. The occurrence of surge is determined by the structural characteristics of the equipment. When the outlet pressure is higher than the centrifugal force or axial thrust generated by the rotor, it will inevitably cause the airflow to flow back between the blades. When the pressure drops and then returns to normal, repeating this process leads to surge. The main manifestations are significant periodic fluctuations in current and flow rate. For reference.