Four major reasons for the shortage of the effluent from the sewage pump and the corresponding elimi

Water pump is used to exclude the city sewage, its application to city life and environmental protection has important influence, but the pump is easy to plug, plug the pump will pump once does not work, and even burning motor, resulting in poor sewage. So we have to pay enough attention to its failure, the following is to talk about the reasons for the lack of sewage pump and the elimination method:

1, sewage pump start water pump: air or gas inlet, or the bottom valve is not tightly closed, packing serious leakage, valve or door is not tightly closed.

Exclude: debris removal, replacement of damaged rubber pad, change the direction of the valve; pressing or replacement of the packing, close the valve or door; increase the amount of irrigation primer, until not until the bubble deflated plug; replace the cracked pipe; reduce the lift, the pump nozzle pressed into the water 0.5 meters.

2, start when the pump does not turn: packing too tight or between the impeller and the pump body was stuck with debris, or pump shaft, bearing, reducing the leakage ring rust live, or the pump shaft is seriously bent.

Exclude: relax fill, dredge flume; open the pump body to remove debris, rust; calibration shaft removed or replacement of the pump shaft.

3, the sewage pump heat damaged bearings: rolling bearing or bracket cover gap is too small; shaft bending or two axis misalignment; the tape is too tight; lack of oil or oil well; balance hole on the impeller blocked, the impeller out of balance, increased to side thrust.

Exclude: replacement of bearings; removal of the rear cover, installed in between the bearing bracket with adjustment; two axle shaft or adjust the concentricity; appropriate adjustable loose tape tension; add clean butter, butter for bearing gap in 60%; remove the plug hole material balance.

Less than 4, after the start of traffic: speed is not matching or belt slippage, low speed; axial flow pump blade installation angle is too small; lift; suction side; valve, pipe and impeller impeller partially plugged or pipe Water Leakage serious defect.

Exclude: adjusted the blade angle to reduce the pump installed; restore rated speed, remove grease belt, adjust belt tightness; water pump seal leakage, compression packing; plug removal and replacement of the impeller; replaced by leakage ring, plug at Water Leakage.

In the use of the sewage pump, if found no water sewage pump, may be caused by the above four reasons, we can identify the reason according to the corresponding methods for troubleshooting, so as to avoid the loss of sewage pump.