In view of the vibration of each component of the pump unit, the causes of vibration are analyzed. From the pump hydraulic, mechanical structure design, to the pump installation, operation, maintenance and other aspects of the measures to reduce the pump vibration. The results show that the guarantee structure sizes of pump parts, precision and pump performance overload hydraulic characteristics to adapt, to ensure the pump's actual operating condition and pump design operating point agreement; to ensure consistency between the accuracy of processing and design; ensure consistency of parts quality of installation and operation, to ensure the uniformity of the quality of maintenance and spare parts and wear of, can reduce the pump vibration.
Vibration is an important index to evaluate the reliability of pump unit. Excessive vibration hazard mainly: vibration caused by pump unit can not operate normally; lead to the vibration of the motor and pipeline, cause the machine to destroy and the people injury; cause damage to the bearings and other parts; cause the connection loose parts, based crack or damage of motor; cause is connected with the water pump fittings or valves loose, damaged; vibration and noise.
The causes of pump vibration are various. Pump shaft and motor drive shaft directly connected, the mutual interference of the dynamic performance of the dynamic performance and makes the pump motor; high speed rotating parts, dynamic and static balance mu can meet the requirements; and the role of fluid components by flow influence larger; complexity of the motion of the fluid itself and the limit of pump performance stability by a factor of.
