FIELD: pumps.
SUBSTANCE: group of inventions relates to electric submersible pumps, producing hydrocarbons from wells. Pump consists of a package of impellers and diffusers to increase fluid pressure. Impellers are turned by an engine to increase fluid pressure and lift latter from well. On front edges of impellers there are discontinuous, including wavy profiles for generating turbulence in pumped fluid. Increased turbulence improves homogenisation of fluid, which prevents clogging of movement channel in case of presence in fluid of components with different density.
EFFECT: reduced probability of clogging of fluid flow channel increases efficiency and performance of pump.
20 cl, 7 dwg
