Reasons for high current during operation of submersible pumps
2023-01-06
Submersible pump in operation, if the current is high, then the cause of the problem must be with the pump valve regulation and mechanical failure of the motor are necessarily related, at this time, first do not rush out of the problem, find the cause of the fault, and then in the implementation of the next maintenance plan, let's understand together.
(1) The flow rate of the submersible pump is too large or too small. The flow rate of the submersible pump will overload the motor if it is out of the range: the flow rate is too large, the shaft power of the pump will increase, which will overload the motor; the flow rate is too small, the shaft power of the pump will increase, which will overload the motor. The treatment method is to adjust the valve appropriately, reduce the flow of the pump (increase the flow of the axial flow pump), so that the flow of the pump is in the normal operating range.
(2) motor bearing wear, pump rubber bearing wear, seal ring wear motor or pump bearing wear, will make the submersible pump in mechanical abnormal operating conditions, severe damage to the pump, so that the stator winding burned. The treatment is to repair or replace the damaged bearings and bushings.
(3) thrust bearing wear, water pump impeller and the lower cover plate wear this condition will also make the submersible pump in mechanical abnormal operating conditions, serious will also damage the pump. The treatment is to check the cause of thrust bearing wear, whether the mechanical seal at the shaft extension end is damaged, causing sand, impurities, etc. to enter the motor cavity and cause excessive wear of the thrust bearing. If the mechanical seal is the cause, repair or replace the worn thrust bearing, thrust disk and impeller, the lower cover plate and other parts together, should replace the mechanical seal at the shaft extension.
Together with this, if the submersible pump shaft bending, bearing is different from the center of this a serious situation, it is recommended that we timely overhaul, straighten the bent shaft, and replace the unqualified bearings, and then reassemble, because this is also an important factor in causing excessive current.
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The three taboos of submersible pumps
Any equipment has a service life. The length of service life is not only related to the quality and performance of the equipment itself, but also related to the specifications of people's use. If we do not use the equipment according to the regular requirements, the service life of the equipment will be shortened. Today will introduce three taboos of submersible pumps.
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Factors affecting the normal operation of submersible pumps
We are in the process of using submersible pumps, once there are problems such as poor sealing, the product is immersed in water for a long time, even if it is not used, the insulation value will drop, and in serious cases, it can not be used. In general, the main factors affecting the normal operation of submersible pumps are as follows.
01-06
Reasons for high current during operation of submersible pumps
Submersible pump in operation, if the current is high, then the cause of the problem must be with the pump valve regulation and mechanical failure of the motor are necessarily related, at this time, first do not rush out of the problem, find the cause of the fault, and then in the implementation of the next maintenance plan, let's understand together.
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Water pump industry gradually towards standardized development
With the continuous progress of technology, pump products will certainly develop in the direction of intelligence, to be able to monitor parameters such as pressure, flow, temperature and vibration; to be able to assess the pump shaft, bearing and seal condition; to be able to diagnose the cause of failure, etc..
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