HORIZONTAL PUMPING UNIT Russian patent published in 2019 - IPC F04D13/06 

FIELD: engines and pumps.

SUBSTANCE: invention relates to horizontal pumping units for pumping water into injection wells in a system for maintaining formation pressure, and can also be used to raise pressure in main oil pipelines and water lines. Proposed plant comprises inlet branch pipe, motor with tubular shaft provided with end seals, pump with shaft axial bearing and splined coupling for shaft connection. Flow channel in the tubular shaft communicates the inlet branch pipe with the cavity of the splined coupling and through the holes in its wall – with the pump intake. Separately located compensator comprises two separate cavities, one of which is hydraulically communicated with inlet branch pipe, and second – with submersible electric motor.

EFFECT: invention is aimed at simplifying the design of a horizontal pump unit, improving its reliability, ease of installation and maintenance.

3 cl, 2 dwg