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Pump technical handling and common faults
First, the pump vibration occurs during operation 1, the pipeline support instability, the pump and inlet pipe sealing surface bolts are loose, the gasket is damaged, the pump and inlet pipe sealing surface bolts are loose, the seal Is damaged, pump body parts and piping system damaged? 2, the pump impeller imbalance in the operation of impeller wear or run-off blockage of individual impeller easily lead to vibration, sometimes due to poor bending shaft impeller vibration caused by the loss of balance. Second, the pump running noise increases 1, bearing noise: sound source bearing installation site, generally with iron rods or screwdriver to withstand the bearing installation site, with ears, as crashed sound. Motor noise: General is howling, can only replace the motor. Cavitation noise: the sound source in the pump chamber, crackling crackling sound. Third, the motor hot 1, the outer wall of the motor hot, may be ultra-current operation, can be closed small outlet valve, adjusted to run within the rated current, it may be the motor coil quality problems, it can only replace the motor 2, rotating parts friction, Frictional resistance increases, it may also be over-current motor hot should stop checking whether the rotor is flexible. Motor bearing fever, the bearing may be lack of oil or damage, the need to repair or replace the bearing. Working voltage is too low, check the circuit to adjust the voltage.