FIELD: steam turbines.
SUBSTANCE: steam turbine stage has diaphragm (1), rotor blades (2) with bandages (3). Bandages (3) have bandage axial comb (6) from the rim clearance (5) side. Axial comb (7) is located in the rim clearance (5) under bandage axial comb (6) creating labyrinth channel (8) with it. Axial comb (6) is made on the perimeter ring (4) installed in the rim clearance (5). Diaphragm (1) is equipped with rim (9) installed in the cage (10). The cage (10) holds above-bandage sealing (11). The cage (10) also includes water discharge channel (12) made under bandages.
EFFECT: reduction of steam turbine cost and reduction of labour intensity.
1 dwg, 1 dwg
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