Causes of Vibration Noise of Pipeline Sewage Pump

Pipeline sewage pump in the course of running vibration and noise failure, which is why?

    First, the rotor pump rotor balance reduced: rotor imbalance, the rotor center and the rotation summary of the new deviation is too large, rotation will produce unbalanced force, especially at high speed, the more obvious the vibration. On the one hand may be manufacturing or assembly, the rotor balance does not meet the design requirements; the other hand, the pump may be running for some time, some reasons such as the deformation of the shaft, the part of the bias grinding rotor rotor balancing accuracy is reduced, It is necessary to re-balance the rotor test.

 

    Second, the pipeline pump cavitation: cavitation process will produce bubbles and bubble burst phenomenon, causing vibration and noise, if it is due to pipeline pump cavitation of vibration generated, it is necessary to consider changing the installation height or increase the system pressure, Also choose the right type of pump is critical.

 

    Third, the pipeline pump in the design of non-operating areas to run: the pump is best to run around the rated flow head, as far as possible to avoid the small flow and large flow to run, otherwise the impact of increased water will cause vibration. When the water flow from the outer end of the impeller blade through the guide vane or volute near the pump head, it will have a hydraulic impact, and the extent of the impact of pipeline pump speed and size of the increase and increase, when the hydraulic pulse ship piping system If the frequency of this water pulse is close to the natural frequency of the pump shaft, piping system, or foundation, a more severe resonance will occur.