FIELD: machine building.
SUBSTANCE: steam turbine comprises working blades and diaphragm outer ring arranged on outer side of said blades. Every working blade comprises end flange, moisture catch grooves, drop removal bore and drain guide flute. End flange is arranged at working blade end to get in contact with end flanges of adjacent working blades. Moisture catch grooves are made at blade back in lengthwise direction. Moisture removal bore communicate end flange outer surface on diaphragm outer ring side and end flange inner surface on working blade inner side. Drain guide flute communicate moisture catch groove ends on end flange side surface with moisture catch bore. Drain guide flute bottom has inclination to blade rear and in steam turbine radial direction. Diaphragm outer ring has drain pocket facing the moisture removal bore.
EFFECT: higher removal of moisture from working blade.
9 cl, 15 dwg
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