Hot water well submersible pump unique structural features

1, hot water well submersible pump heat resistant high temperature submersible motor unique structure
    The high-temperature motor is filled with water and sealed structure, the cavity is filled with water or rust-proof lubricating fluid (rust inhibitor). The joints are sealed with 0-shaped rubber seals or sealant. The shaft end of the motor is equipped with a rubber skeleton oil seal 4 or a single-face mechanical seal 5 so as to prevent the solid impurities and sediment particles in the motor from entering the motor interior. The stator (including windings) 7 of the motor, the rotor 8 and the bearings are all operated in water. The stator winding of the motor is made of water-resistant winding wire with polyethylene insulation, polyethylene insulation or modified polypropylene insulation, and has good water-proof insulation performance and long service life. Water lubricated sliding guide bearings 6 and 9 made of copper alloy, graphite or polymer plastic and the like are attached to the upper and lower portions of the motor, and a water lubricated thrust bearing 11 made of graphite or thermosetting plastic or the like is provided at the lower end of the shaft, In order to withstand the rotor running motor and the axial thrust of the pump. In order to limit the pump to start up the shaft to move up, resulting in short-term motor shaft seal sealing leakage, the lower part of the motor with thrust bearing sliding bearings 10. The bottom of the motor is equipped with rubber pressure regulating bladder 13, to adjust the cavity filled with water due to temperature or pressure changes caused by volume changes. For the thin steel coil shell structure, the shaft end of the installation of rubber skeleton oil seal or mechanical seal for power smaller, shorter core, the chassis force smaller motor. For the steel pipe shell structure, the overall rigidity is better for larger power, longer core, the chassis force larger motor.
2, hot water well submersible pump motor main features
    (1) wells with water-filled hot water submersible motor structure is simple, stator and rotor windings and core immersed in water, cooling effect, the output power, high efficiency.
    (2) due to water-filled high-temperature motor cavity filled with water, the use of the process of leakage on the installation of the well water quality will not produce pollution.
    (3) water-filled high-temperature motor stator windings, iron and bearings are working in the water, the stator winding wire used and its processing technology, joint materials and dressing process, water lubrication bearing structure, materials and processing technology, Iron and metal materials, anti-rust anti-corrosion treatment have high requirements.
    (4) water-filled motor has sufficient reliability, is the well with hot water submersible motors in the production of the most, the most widely used one.