Vertical pipe centrifugal pump in the use of the process, there will be a variety of conditions, such as: pump vibration, the upper and lower bearings are often hot, damaged, shaft and bearing joints worn, or unstable pump, affecting the normal pump Water supply, therefore need to pipeline centrifugal pump damping treatment. Then by the Shanghai Kai All Pump Manufacturing Co., Ltd. for you to share Several common causes of pipeline centrifugal pump vibration pump 1, the rigid connection between the pump and drive shaft, due to manufacturing, installation reasons, the operation of the pump shaft and drive shaft concentric, Resulting in vibration pump; motor, transmission shaft and other vibrations generated by the source also directly transmitted to the pump, forming a superposition of vibrations to further increase the pump vibration. In addition, this rigid connection to increase the water pump bearing the external force, resulting in easy to heat the bearing, affecting the pump shaft. 2, if the pump head is high, the case of large flow, the center of gravity is relatively high, high-quality system of high-speed rotation, the centrifugal force is great, it will cause greater vibration of the unit; if coupled with the stent and pump out Water connection stiffness is not enough, resulting in a greater displacement of the pump and the connector. Displacement of the pump during operation results in a change in the bearing condition of the bearing. As the vibration increases, it is easy to generate heat. If the correction of displacement pump to improve bearing stress conditions, can reduce the vibration of the system. The transformation of the pump 1, the transformation of the transmission system, the rigidity between the pump and the transmission shaft to flexible link, the purpose is to reduce the motor, transmission shaft vibration pump to pass, so that motor, shaft vibration can be compensated, Will not be passed directly to the pump <BR> 2, to strengthen the pipe just arrived, in order to increase the stiffness of the pipe to reduce the deformation of the pump to prevent the displacement of the pump and so on, you can use the inlet and outlet at the entrance to join a fixed ring, we can pump outlet gradually Expansion pipe and the valve between the outlet pipe flange at both ends of the welding. The results of the transformation of the pipeline after the transformation of the smooth operation of the centrifugal pump, the upper shaft just normal maintenance, the shaft is worn out, and therefore said that the transformation is successful.