The submersible pump's installation are multistage centrifugal vertical submersible pumps . Although submersible pump constructional and operational features underwent a continuous evolution this years, their basic operational principle remained the same. Transport liquids, after being subjected to great centrifugal forces caused by the high rotational speed of the impeller, lose their kinetic energy in the diffuser where a conversion of kinetic to pressure energy takes place.
The centrifugal pump's shaft is connected the gas separator or the protector by a mechanical coupling at the bottom of the pump. When liquids enter the pump through an intake screen and are lifted by the pump stages.Other parts include the radial bearings (bushings) distributed along the length of the shaft providing radial support to the pump shaft turning at high rotational speeds. An optional thrust bearing takes up part of the axial forces arising in the pump but most of those forces are absorbed by the protector’s thrust bearing.
