1, motor, water pump guide bearing wear rubber bearing wear, bearing wear ring motor or pump, the submersible pump in the normal working state of the machine, serious damage to the submersible pump, the stator winding. Processing method is to repair or replace the damaged bearings and bushings.
2, submersible pump flow is too large or too small to use the flow beyond the scope of use will make the motor overload of centrifugal pump or mixed flow pump, excessive flow, the pump shaft power increases, will make the motor overload; the axial flow pump, the flow is too small, the pump shaft power will increase the motor overload. The treatment method is appropriate to adjust the valve, the centrifugal pump or mixed flow pump to reduce (to increase the axial flow pump) flow, so that the flow of the pump in the normal range of use.
3, submersible pump shaft bending, the bearing is not concentric such a serious situation, should immediately repair, shaft bending, replace the bearing failure, re assembly of submersible pump.
4, thrust bearing wear, deep well submersible pump impeller and the next cover wear this situation will also make the deep well submersible pump in the mechanical work is not in the normal state, serious damage to the submersible electric pump. The treatment method is to check the cause of the thrust bearing wear, whether the shaft extension end mechanical seal damage, resulting in sand, impurities, etc. into the motor cavity and cause excessive wear of thrust bearing. If it is the cause of mechanical seals, in the repair or replace the wear of thrust bearings, thrust plate and impeller, under the cover plate and other parts of the same time, should replace the shaft extension end mechanical seal.
5, deep well submersible pump current bias and selection of the relevant, deep submersible pump selection head is too large, the actual use of small head.
没有评论:
发表评论