Sewage submersible pump fault analysis and solution

Sewage submersible pump is characterized by good anti-clogging performance, high efficiency, as well as cavitation performance, anti-abrasion performance, which is mainly by the two parts of the leaf pump and pressurized water chamber to ensure that. Sewage submersible pumps are mainly composed of asynchronous motors and pumps, now widely used in agricultural irrigation and drainage and industrial water supply industry. A dry, oil-immersed, water-cooled, and so on. As the sewage submersible pump body into the water for a long time to work, coupled with the poor working environment, the poor quality of the power grid, lack of maintenance experience, so a higher failure rate, greater maintenance. More people are concerned about the sewage submersible pump fault analysis and solutions. Sewage submersible pump failure analysis and solutions 1, the sewage submersible pump operation abnormal vibration, instability Failure Analysis: (1) the pump base anchor bolts are not tightened or loose; (2) the outlet valve can not be opened; (3) the lower end of the pump resistance (2) check the valve, and often on the valve maintenance; (3) clean up debris or replacement of resistance Grinding ring; 2, sewage submersible pump insulation resistance is low Failure Analysis: (1) the power cord is installed immersed in the water or the power cord, signal line damage caused by water; (2) mechanical seal worn or not installed in place; 3) O-ring aging, loss of function; solution: (1) replace the cable or signal line, drying the motor; (2) replace the mechanical seal up and down, drying the motor; (3) replace all seals, drying the motor ; 3, sewage submersible pump caused by excessive current motor overload or over-temperature Fault analysis: (1) working voltage is too low or too high; (2) Impeller and seal friction; (3) Low lift, flow caused by large motor power and pump characteristics do not match; Solution: (1) Check the power supply voltage, adjust the voltage transmission. (2) to determine the location of friction parts, eliminate the fault. (3) adjust the valve to reduce the flow, so that the motor power and pump match. Through the above analysis of 3:00 we can know that sewage submersible pump at work is more prone to failure is abnormal operation, low resistance, the motor over-temperature. With years of development and innovation, sewage submersible pumps have become more and more mature, I believe in the future one day, these failures can disappear as the product improvement. The future of sewage submersible pump needs everyone's attention and help.

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