TOPPING GAS STABILIZING DEVICE (VARIANTS) Russian patent published in 2022 - IPC F04D13/10 F04D31/00 

FIELD: pumping engineering.

SUBSTANCE: group of inventions relates to pumping engineering, in particular to non-separable topping devices for multistage submersible pumps, and can be used to ensure stable operation of the pump when lifting oil-water mixtures with a high content of undissolved gas from wells. The device includes a package of axial stages consisting of an impeller and a guide device with blades. The impeller is a sleeve with spiral blades. Through holes are made on the surface of the spiral blades of the impeller, the total area of which is 5-40% of the area of the blade. In an alternative variant, through recesses are located at the ends of the spiral blades, while the total area of the recesses is 5-40% of the area of the blade.

EFFECT: ensuring the efficiency of dispersion of a gas-liquid mixture with a high concentration of gas in the widest possible range of main pump feeds at low power consumption and increasing reliability when working in an arrangement with a high-speed extraction pump.

14 cl, 9 dwg