PUMP FOR GAS-LIQUID MIXTURE TRANSFER Russian patent published in 2015 - IPC F04D13/10 F04D31/00 

FIELD: oil and gas industry.

SUBSTANCE: pump contains body, in which stage packages of different types are installed, containing the guide vanes and impellers installed on the shaft (1) and rotating together with it. At the pump input the package (I) with axial stages is installed, it contains guide vanes (3) and impellers (2) with spiral blades, above it the next package (II) - dispergator is installed, it is made in form of stator-sleeves (5) and rotors (4) having of the mating surfaces shoulders and depressions. Then successively the package (III) of transition stages and packages (VI) with stages of main centrifugal pump are installed. The flow channels of the transition stages are made with width close to width of the flow channels of the main pump stages.

EFFECT: creation of the submersible pump to transfer gas-liquid mixtures able to operate effectively and to develop high head in wide range of concentrations of mixture undissolved gas.

4 cl, 1 dwg