The reason of abnormal vibration and noise and solution of pipeline pump

Rotor imbalance, the center of the rotor and the new deviation is too large, the rotation will produce unbalanced force, especially in the higher speed, the more obvious vibration. May manufacture or assembly, rotor balance did not meet the design requirements; on the other hand may pump running after a certain time, some reasons, such as axis by force deformation, parts of partial grinding reduce high knowledge of rotor balancing precision, these two conditions are necessary to rotor balancing test.

Cavitation process will produce and the bubble burst the bubble phenomenon, causing vibration and noise, if it is due to the vibration of the pipeline pump cavitation, to consider changing the mounting height or to increase the pressure on the system, and also the choice of the appropriate type of pump is the key.

Pump running at the best rated flow head on the run, as far as possible to avoid the small flow and large flow to run, or the impact of the increase in hydraulic vibration. Flow from the outer end of the impeller blades through the leaves or pump volute tongue near, will produce the hydraulic shock, and the extent of the impact of although the pump speed and the size of the increase and increase, when the hydraulic pulse ship piping system set, it will produce noise and vibration; if the water in the pulse frequency and the shaft of the pump and piping systems and close to the natural frequency, will produce more serious resonance.