FIELD: pumps.
SUBSTANCE: group of inventions relates to submersible pump systems and, in particular, to their sealing sections. Sealing section is provided for use in well pump system. It comprises the first fluid separation mechanism and the second fluid separation mechanism. Second fluid separation mechanism is arranged inside said first fluid separation mechanism. First fluid separation mechanism is a labyrinth seal. It comprises cover, shaft seal and labyrinth chamber. Labyrinth chamber has inlet holes. They are connected to the second fluid separation mechanism. There are outlet holes connected to the well. Cover and shaft seal prevent fluid from passing through labyrinth seal.
EFFECT: technical result is higher reliability of sealing sections.
17 cl, 5 dwg
