Shenyang Shenjing Submersible Pump Co., Ltd.
Address: North Liguan West Peace Industrial Park, Yuhong District, Shenyang City
Contact number: Northeast sales phone: 024-25823018 89361125 89361461
Other areas: 024-25512305 25820388
Contact fax: 024-89361960
Email: shenjingbengye@163.com
Contact: Sales Department: 89361125, After-sales Service Department: 024-89361859
Website: www.ln-pump.com
When the submersible pump runs, the current is larger than normal, which is related to the adjustment of the pump valve and the mechanical failure of the motor. The main reasons are as follows:
1, the motor guide bearing wear, water pump rubber bearing wear, seal ring wear, the motor or water pump bearing wear, will make the submersible pump in the mechanical abnormal working state, serious damage to the submersible pump, the stator windings burned out. The treatment is to repair or replace damaged bearings and bushing.
2, the submersible pump flow is too large or too small the use of flow beyond the scope of use will make the motor overload: for centrifugal pump or mixed flow pump, the flow is too large, the pump shaft power increases, will make the motor overload; For the axial flow pump, the flow rate is too small, the pump shaft power increases, will make the motor overload. The treatment method is to adjust the valve properly, reduce the flow of centrifugal pump or mixed flow pump (increase the axial flow pump), so that the flow of the pump in the normal range of use.
3, shenyang submersible pump shaft bending, bearing different center this is a serious situation, should immediately carry out maintenance, straightening bending shaft, replace unqualified bearings, re-assembly submersible pump.
4, thrust bearing wear, submersible pump impeller and lower cover wear this situation will also make the submersible pump in the mechanical abnormal working state, serious damage to the submersible pump. The treatment method is to check the cause of thrust bearing wear and whether excessive wear of thrust bearing is caused by sand and impurities entering the motor cavity due to mechanical seal damage of shaft extension end. If it is the cause of mechanical seal, in the repair or replacement of worn thrust bearing, thrust disc and impeller, lower cover plate and other parts, at the same time, should replace the shaft extension mechanical seal.
5. The large current of submersible pump during operation is related to the type selection. The submersible pump chooses a large head, but the actual head is small.
