Fountain pump is currently used in routine maintenance small knowledge

At present, the routine maintenance of fountain pump is the guarantee of safe and normal operation. Therefore, it is to eliminate and prevent the operation of the unit during the planned maintenance of the accident.

Method / step
1 fountain pump daily maintenance of the main contents are as follows:
(1) Check and handle loose bolts or nuts. Such as the door, bolts, pins, pins, double-suction centrifugal pump shaft sealing device packing tightness, air compressor valve and so on.
(2) oil, water, gas pipeline joints, valve leakage treatment.
(3) motor carbon brush, slip ring, insulation and other inspection processing.
(4) Check the trash rack before there is no water debris.
(5) to keep the motor dry, check the motor insulation.
(6) repair gate hanging point is solid, the door side with or without blocking material, corrosion and wear.
(7) gate opening and closing equipment maintenance.
(8) crane maintenance.
(9) unit equipment cleaning.
2 submersible pumps on a regular basis on the submersible pump and its control system for comprehensive maintenance, at least a year to do a comprehensive preventive maintenance l, including: when the boot sound and voltage and current vibration abnormalities, start the device work is normal, over-temperature Whether the leakage of water alarm, the control of the establishment of multiple protection is often action, the main cable and control cables are aging and cracking, the main contactor with or without dead stick oxidation or burr, thermal relay settings are correct, winding insulating layer with or without signs of aging, Ground insulation resistance is too low, three-phase winding resistance is balanced, the stator rotor asked whether the chamber or scratches, control system level gauge is accurate, the upper and lower limits of the output is normal and reliable, float action is reliable, temperature detection device Whether the aging of the malfunction, the oil with or without emulsification, mechanical seals are intact, bearing wear and tear, whether the impeller wear or cavitation, the shaft is rusty deformation or wear, screw the motor inside and outside loose, cooling jacket and Circulating water pipes with or without debris, pump Ll and the surrounding sediment deposition or blockage. In the preventive maintenance and submersible pump operation process, the right to distinguish between over-temperature alarm, the alarm is really over-temperature or aging components of the malfunction. In the case of component aging, the signal will only access the alarm signal, not to directly participate in control, to reduce the frequent start of the submersible pump.