The screw pump is composed of a shaft, spiral blade and shell. It uses the rotation of the spiral blades to make the water body spiral upward in the axial direction. According to the number of screws, screw pumps can be divided into single screw pumps, twin screw pumps, and three screw pumps(multi screw pumps).
Common problems of screw pumps:
* Reasons for the severe vibration or noise of the pump body: The pump is not installed firmly or the pump is installed too high. The motor ball bearings are damaged. Or the main shaft of the water pump is bent or is not concentric or parallel with the main shaft of the motor.
Method: install the water pump stably or lower the installation height of the water pump. Replace the motor ball bearings. Correct the bent water pump spindle or adjust the relative position of the water pump and the motor.
* Reasons for overheating of the drive shaft or motor bearing: lack of lubricating oil or bearing rupture, etc.
Method: add lubricating oil or replace the bearing.
* The reason why the pump does not deliver water: The pump body and the suction pipe are not filled with water. The moving water level is lower than the water pump filter pipe. Or the suction pipe is broken, etc.
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