Vibration in operation
1. Instability line support, pump base, or anchor bolts loosening is caused by vibration are common causes, the everywhere fastening bolts must be to avoid loosening.
2. Liquid gas, carefully check the water pump and the inlet pipe of the sealing surface connection bolts are loose, seal gasket is damaged, pump body and pipeline system parts are damaged or not.
3. Pump and motor shaft is not concentric, should be adjusted, with the belt rotation, the rotation of the belt is too loose or poor contact, it will cause vibration. Pump impeller imbalance in the impeller wear or individual impeller flow channel blockage is easy to cause vibration, and sometimes also due to the shaft of the impeller caused by poor balance caused by poor vibration.
Noise increases in operation.
1. Bearing noise: the sound source bearing installation site, generally resist with an iron bar or screwdriver to installation position of bearings, with the ears, in order to squelch the sound.
Motor noise: general is pitched, only the replacement of the motor.
Cavitation noise: the sound source in the pump cavity, crackling crackling. Three. China Pump Technology Forum
The outer wall of the electric motor is very hot, and the electric current can be run, the small outlet valve can be closed, and the operation of the rated current can be regulated, and the quality of the motor coil can be changed.
2. Rotating parts of friction, friction resistance is increased, it may be over current to the motor hot should be stopped to check the rotor is flexible.
Motor bearings, heat, may be the lack of oil or damage to the bearing, the need to repair or replace the bearing.
Operating voltage is too low, check the circuit to adjust the voltage.
