KAZACHENKO HYDRAULIC HPP UNIT, GUIDE VANES, IMPELLER, WHEEL SEAL, AND FLOW REGULATOR Russian patent published in 2012 - IPC F03B3/04 

FIELD: engines and pumps.

SUBSTANCE: unit is intended to be used at derivational and reservoired HPP with inconsiderable vibration of after-bay level with wide ranges of water head and flow rate. Lower end of vertical shaft of the unit with operating spherical surface is borne against the centre plate. Cone-shaped tray is rigidly attached to the shaft and impeller. Outlet tubes with variable and fixed cross section area are tangentially attached to the above cone-shaped tray. One end of bent vanes is fixed in the guide vanes in external rim and the opposite end is attached to the rim which envelops the shaft. Vanes are made at a tangent to outlet section plane. Upper rib of vane is oriented in radial plane and inclined from internal rim to external rim, and lower rib is oriented horizontally. Seal of the impeller consists of two flexible elastic rings with the chute profile the bottom of which faces the top. Some sides of those are tightly attached to the sealed parts and the opposite convex sides contact each other. Centrifugal water flow regulator includes balancing levers, rods and a slide on the unit shaft, and it is arranged in protection casing in the flowing water flow.

EFFECT: use of the unit contributes to increase in the power, efficiency and high speed, and allows simplifying, cheapening and accelerating the HPP construction.

7 cl, 17 dwg