Special requirements for submerged motors for submersible pumps with high lift submersible pumps

High head deep well submersible pumps more series, more power, in addition to the larger rotor weight, the water pump axial thrust is great, require wells with submersible thrust bearings to withstand high axial thrust. For submersible motors in wells, due to the design of the thrust bearing structure and the use of different materials, it can withstand the submersible pump down thrust is different, and there are certain limits.
     When the deep well submersible wells submersible pump wells with high lift (150m a 200m or higher), in order to ensure the safe and reliable operation of the submersible motor should be used with high thrust thrust bearings of the motor, the general Type of the overall thrust bearing thrust to change the type of block-aligning thrust bearings. Otherwise, should be taken to reduce the axial force on the submersible pump measures, such as the impeller to open the balance hole, etc., to ensure the normal use of submersible wells with the working conditions. Otherwise, the submersible motor water lubrication thrust bearing is easy to accelerate wear and even damage, resulting in wells with submersible motor damage.