Attention in mechanical structure design Increase the number of supporting bearings of the drive sha

Pay attention when using: eliminate the factors that cause the pump to overload, such as blockage of the flow passage; appropriately extend the start time of the pump, reduce the disturbance to the drive shaft, reduce the collision and friction between rotating parts and stationary parts, and the resulting

For water-lubricated sliding bearings, sufficient pre-lubricated water should be added during the start-up process to avoid dry start until the water pump has discharged water before stopping the water injection; regular oil injection into the bearings that need to be oiled; for long shaft submerged centrifugal pumps

Because there is torsional vibration in the shafting, if thrust pads are used, the thrust pads will be damaged. Attention in mechanical structure design Increase the number of supporting bearings of the drive shaft, reduce the support spacing, reduce the shaft length within an appropriate range, appropriately increase the diameter of the shaft, and increase the rigidity of the shaft.

The foundation of the water pump is loose, or the water pump unit forms an elastic foundation during the installation process, Wholesale mechanical bearings or the foundation stiffness is weakened due to oil-soaked water bubbles, the water pump will produce another critical speed with a phase difference of 1800 from the vibration, which will increase the vibration frequency of the water pump. 

If monitoring shows that the shaft has actually been bent, correct the pump shaft. Reasonably design the suction chamber at the inlet section of various pumps and the mechanical structure of the compression stage to reduce pressure pulses, ensure stable flow field, improve pump efficiency, reduce energy loss, and improve pump dynamic performance The stability. 

At the same time, optimize the design of related flow channels such as the water outlet channel of the pump to reduce vibration caused by hydraulic loss. Bearing and lubrication If the rigidity of the bearing is too low, the first critical speed will decrease, causing vibration.