In daily use, pay attention to the use of submersible sewage pump maintenance and pay attention to some of the usual maintenance, can be very good extension of the service life of submersible sewage pump. Submersible sewage pump how to maintain? Here to introduce you to the submersible sewage pump maintenance methods:
1, to prevent the power supply voltage abnormal start
Because the low-voltage power supply line is relatively long, the end of the line voltage is too low is common. When the phase voltage is less than 198 volts, the line voltage is lower than 342 volts, the submersible sewage pump motor speed is reduced, when less than 70% of the extra speed, the centrifugal switch will be closed to form the long-time winding winding power and heat Bad windings and capacitors. Conversely, a high voltage causes the motor to overheat and burn out the winding. Therefore, the submersible sewage pump in the operation, the operator need to always investigate the power supply voltage value, if less than 10% of the additional voltage, higher than 10% of the additional voltage, the motor should suspend operations to find out the reasons and troubleshooting.
2, to determine the correct direction of rotation of the motor
Should find out the direction of rotation of the motor, and now there are many types of submersible sewage pump is turning and turning can be water, but the water flow is small, large current, its long rotation will damage the motor windings.
3, to prevent frequent switching
Do not frequently switch the submersible pump, this is because the pump will stop when the return flow, if immediately switched on, the motor load will start, resulting in excessive current and burn the winding winding. Because the launch when the current is very large, frequent launch will burn the submersible sewage pump motor windings.
4, cable equipment and submersible sewage pump insulation resistance requirements
Installation of submersible sewage pump, the cable to overhead, the power cord should not be too long. Do not allow the submersible sewage pump to pump water or lift the cable so that the power cord does not crack. Do not sink submerged pump in the mud, otherwise it will cause poor cooling of the motor and burn the motor winding. Device, the insulation resistance of the motor should not be less than 0.5 megohm.
5, leakage maintenance device
Leakage maintenance device, also known as security device, and its effect from the 'security device' the three words you can understand. Because the submersible sewage pump in the water operation, the formation of a simple loss of electrical leakage and even lead to electric shock incidents. If the leakage current maintenance device, just submersible sewage pump leakage value exceeds the leakage current value of the maintenance device (usually does not exceed 30 mA), leakage maintenance device will intercept submersible pump power, to ensure safety, to prevent leakage, spoilage Electricity.
6, pay attention to the usual maintenance
Usually should always view the motor, if found under the cover of a crack, rubber seal ring damage or failure, should be replaced or amended to prevent water into the submersible pump.
7, do not allow long-term submersible sewage pump overload operation
In order to prevent the submersible pump from overloading for a long time, do not draw large amount of water in the sediment and check the current value is not in the nameplate on the value of the rules, if the current is too large, should stop viewing. In addition, the pump dehydration running time should not be too long to prevent the motor overheating and burned.
1, to prevent the power supply voltage abnormal start
Because the low-voltage power supply line is relatively long, the end of the line voltage is too low is common. When the phase voltage is less than 198 volts, the line voltage is lower than 342 volts, the submersible sewage pump motor speed is reduced, when less than 70% of the extra speed, the centrifugal switch will be closed to form the long-time winding winding power and heat Bad windings and capacitors. Conversely, a high voltage causes the motor to overheat and burn out the winding. Therefore, the submersible sewage pump in the operation, the operator need to always investigate the power supply voltage value, if less than 10% of the additional voltage, higher than 10% of the additional voltage, the motor should suspend operations to find out the reasons and troubleshooting.
2, to determine the correct direction of rotation of the motor
Should find out the direction of rotation of the motor, and now there are many types of submersible sewage pump is turning and turning can be water, but the water flow is small, large current, its long rotation will damage the motor windings.
3, to prevent frequent switching
Do not frequently switch the submersible pump, this is because the pump will stop when the return flow, if immediately switched on, the motor load will start, resulting in excessive current and burn the winding winding. Because the launch when the current is very large, frequent launch will burn the submersible sewage pump motor windings.
4, cable equipment and submersible sewage pump insulation resistance requirements
Installation of submersible sewage pump, the cable to overhead, the power cord should not be too long. Do not allow the submersible sewage pump to pump water or lift the cable so that the power cord does not crack. Do not sink submerged pump in the mud, otherwise it will cause poor cooling of the motor and burn the motor winding. Device, the insulation resistance of the motor should not be less than 0.5 megohm.
5, leakage maintenance device
Leakage maintenance device, also known as security device, and its effect from the 'security device' the three words you can understand. Because the submersible sewage pump in the water operation, the formation of a simple loss of electrical leakage and even lead to electric shock incidents. If the leakage current maintenance device, just submersible sewage pump leakage value exceeds the leakage current value of the maintenance device (usually does not exceed 30 mA), leakage maintenance device will intercept submersible pump power, to ensure safety, to prevent leakage, spoilage Electricity.
6, pay attention to the usual maintenance
Usually should always view the motor, if found under the cover of a crack, rubber seal ring damage or failure, should be replaced or amended to prevent water into the submersible pump.
7, do not allow long-term submersible sewage pump overload operation
In order to prevent the submersible pump from overloading for a long time, do not draw large amount of water in the sediment and check the current value is not in the nameplate on the value of the rules, if the current is too large, should stop viewing. In addition, the pump dehydration running time should not be too long to prevent the motor overheating and burned.
Manufacturers recommend: Shenlong stainless steel sewage pump
Keywords:Submersible sewage pump, maintenance
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