FIELD: machine building.
SUBSTANCE: stator of a turbine, in particular of a gas turbine, comprises several guide vanes. At least every guide vane from the two ones adjacent in the direction along the vanes' circumference has an airfoil, a platform set at the inner end of the airfoil, and a system of channels for cooling the respective guide vane by the cooling gas. The platform comprises at least one side wall set in the direction along the circumference, which forms a cavity connected to the channels system providing for the supply of cooling gas to the platform. At least one sealing plate is installed between looking to each other side walls of two guide vanes adjacent in the direction along the vanes' circumference, and forming an intermediate cavity. The respective cavities of platforms and the intermediate cavity are not communicated with each other. The turbine comprises such stator, and such guide vane of such stator.
EFFECT: improvement of the turbine stator.
13 cl, 3 dwg
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