TWO-FLOW RADIAL-AXIAL WHEEL Russian patent published in 1994 - IPC

FIELD: manufacture of turbines for moist-steam turbines. SUBSTANCE: wheel has load-bearing disk 1 with working blades 2 and cover disks 3 and 4. Wheel is provided with moisture separator pump 3 with reactive hydraulic nozzles 6 mounted on end surface of at least one cover disk, for example, disk 4 on side of the wheel inlet. Leading edge of each working blade 2 has edges smoothly bent in way of steam flow forming chutes located at angle of 1 to 5 deg to longitudinal axis of the wheel, thus providing for discharge of liquid to the separator pump. Grooves or projections 11 are made on inlet sections of blades and on inner surface of cover disk with moist separator pump over trajectory of water jet flow. EFFECT: enhanced efficiency. 2 cl, 4 dwg