Pump installation points and common failure analysis and treatment
1. Water pump installation points
Pumps should be installed to meet the permitted height of suction on the vacuum requirements must be based on level, secure, guarantee power machinery of the rotation direction of pump
rotation in the same direction. Water pump and power machine with shaft connection, we must ensure that the axis along the same line, to prevent the machine vibration and bearing run-time single-sided wear; the use of a tape drive, it should be parallel to the axis, belt wheel is. If more
units within the same room, unit and among units, among units and the walls should
have a distance of more chemical pumps than 800mm. Pump suction pipe must be
sealed well, and to minimize the elbow and the valve, the water should be drained
filling the air, runtime tube should not build up the air, required suction tube oblique
micro goes to the intake connection with pump, intake should be certain submerged
depth. Reserve based on pump hole, should be based on the size of pump casting.
2. Pump fault analysis and treatment Different types of pumps, their failures on different
forms, but can be summarized as the following common features.
(1) flow less than Reason: lack of effect of pump suction pipe is leaking more than, the
end of valve leakage; into the outlet plug; end Selfpriming pumps of the valve into the water deep enough; pump speed is too low; seal wear ring or impeller is too large; absorbent such as excessive height.
Treatment: Check the suction pipe and the bottom valve, blocked the leak source;
clean water inlet of the mud or blockages; end of the valve into the water depth must
be greater than 1.5 times the diameter of the inlet, increasing the depth of the bottom
valve into the water; Check power supply voltage, Increase pump speed or impeller
seal ring replacement; lower pump installation location, or replacement of Screw pumps
the high lift pump.
(2) excessive power consumption Reason: pump speed is too high;
pump shaft and motor shaft bending or pump shaft misalignment or non-parallel; inappropriate use pump head; pump sediment or inhalation of obstruction;
motor ball bearing failures. Treatment: Check the circuit voltage and reduce the pump
speed; correction or adjustment of pump and pump motor Suber water pumps shaft relative position; choose the right pump head; clean sand or
blockages; replacement of ball bearing motor.
(3) severe vibration or noise pump Cause: Installation is not strong or the water
pump install water pump too high; motor ball bearing damage; water pump
Magnetic pumps shaft and motor shaft bending or misalignment, not parallel and so on.
Approach: install stable installation of pumps or lower pump height; replace motor
bearings; correct bent pump shaft or adjust the relative position of pump and motor.
(4) or the motor drive shaft bearing overheated Reason: lack of lubrication or bearing
breakdowns. Approach: filling oil or replacement.
(5) No water pump Reason: did not fill pump and suction hose water; water level below
the pump filter pipe; suction tube rupture. Treatment: Exclude the end of valve failure, filled
with water; reduce water pump installation, and make the filter pipe to move under the water,
or water filter such as water level rose further pumping.