DEVICE FOR SEPARATION OF SOLID PARTICLES AND GAS IN SUBMERGED ELECTRIC CENTRIFUGAL PUMP Russian patent published in 2009 - IPC E21B43/38 

FIELD: engines and pumps.

SUBSTANCE: invention is related to oil machine building and may be used in submerged electric centrifugal pumps that pump gas-liquid mixtures with high content of solid particles from wells. Device comprises body, shaft, receiving base with channels and mesh for passage of well liquid, separator, channel for gas discharge, channel for discharge of separated liquid, channel for discharge of solid particles connected to container. Inside separator there is axial wheel installed, which is arranged with upper annular disc with internal channel for gas discharge. Ends of wheel blades and internal part of separator are arranged as cone-shaped. Above disc on shaft there is baffle installed, which is arranged in the form of cruciform radial blades, and fixed protective grid, above which compressing wheel is located. Suggested design will make it possible during pump operation to separate gas-liquid mixture with solid particles after supply to device in three flows: gas, liquid and solid particles with their direction along their motion channels due to effect of centrifugal forces.

EFFECT: increased efficiency of pumps operation in crooked wells having viscous, highly carbonated liquid and high content of solid particles.

1 dwg