| 摘要 |
PROBLEM TO BE SOLVED: To improve the sealing effect by tilting a plurality of seal fins provided in an upper part of a sealing plate by a specific angle opposite to a stream of air which flows out in a gas turbine sealing device which seals a space formed by the sealing plate of a moving blade and an adjacent stationary blade for a combustion gas passage. SOLUTION: A sealing plate 21 is attached to one end of a platform 2 of a moving blade 1 in such a manner that it comes into contact with an end part of a sealing pin 43, and a plurality of sealing fins 22 are provided in an upper part of the sealing plate 21 in opposition to a face of a honeycomb seal 16 provided in an end part 12a of an inner shroud 12 of a stationary blade 11. A sealing plate 31 having a sealing fin 32 is provided on a moving blade 1' on a rear step side of the stationary blade 11 in the same way. This sealing fin 22 is tilted in opposition to the direction of a stream of air, and its inclination angle is set to a scope of 0<θ<=90 deg.. Moreover, the direction of inclination of the sealing fin 32 is set to the opposite direction to the inclination of the sealing fin 22 of the sealing plate 21 because it is necessary that the sealing fin 32 is inclined in opposition to the stream of air.
|
