Water pump installation key points, and fault analysis method (2)

Water pump installation points
the pump installation position should meet the requirements of allow the vacuum suction height, base must be level, solid, the rotation of the direction of rotation of the mechanical power to the water pump in the same direction. Pumps and power machine using shaft coupling, to ensure the axis in a straight line, in case the unit running vibration and the bearing's lopsided wear; If the tape drive, should make the axis parallel to each other for tape round. If the same room with multiple units, between unit and unit, unit and should have mm above the distance between the wall. Pump suction pipe must be properly sealed and minimize the bend and brake pneumatic valve, filling water diversion should be no air, when the runtime tube should not be accumulated air, require micro is oblique with the pump suction inlet connection, submerged depth of the inlet due and certain. Water pump on the basis of the reserved hole, should according to the size of the pump casting. Pump
common fault analysis and processing method of the different types of water pump, its failure forms are different, but in summary, there are a few common characteristics.
( ） Lack of traffic causes:
affects more insufficient pump discharge is suction pipe leakage, hand move valve leakage; Water inlet blocked; Hand valve into the water depth is insufficient; Water pump speed is too low; Sealing ring or impeller wear too much; Suction height exceeds bid, etc.
processing method: check the suction pipe and hand valve, plug leakage gas source; Clean up the water inlet of silt or plugs; Times, better bottom spirit valve into the water depth; Check the power supply voltage,
to improve the pump rotation speed, replace the sealing ring or impeller; Reduce the installation position of water pump, or replace the high-lift pump.
( ） Too much power consumption causes:
water pump speed is too high; Water pump shaft bending or water pump shaft and motor spindle different heart or not parallel; Selects the pump head is not appropriate; Pump suction sediment or plugs; Motor bearing damage, etc.
processing method: check the circuit voltage, reduce the pump speed; Correct pump spindle or adjust the pump and motor position; Choose appropriate lift pump; Clear silt or blockage; Replace the ball bearing of the motor.
( ） Pump body violent vibration or noise causes:
installed pump not firm or the pump is too high; Motor bearing damage; Water pump shaft bending or different heart and motor spindle, not parallel, etc.
processing methods: stabilizing pump or reduce the pump installation height; Replace the motor ball bearings; Correct bending pumps spindle or adjust the relative position of the pump and motor.
( ） The shaft or motor bearing overheating causes:
the lack of lubricating oil or bearing fracture, etc.
processing method: filling lubricating oil or replace bearing.
( ） Don't pump water causes:
pump body and suction pipe didn't fill up water diversion; Dynamic water level below the pump filter tube; Suction pipe burst, etc.
processing methods: eliminate hand valve failure, filling water diversion; Reduce the installation position of water pump, filter tube making under the dynamic water level, dynamic water level rise or filter pipe pumping again, Repair or replace the suction pipe.