Turbine vane

摘要

A stator for a turbine includes an arrangement of vanes including at least a first vane and a second vane circumferentially neighboring the first vane. Each of the first vane and the second vane include: an airfoil; a channel system configured to cool the respective vane with cooling gas; and an inner diameter platform disposed at an inner end of the airfoil, the inner diameter platform including an inner diameter platform cavity and a circumferentially arranged side wall which delimits the inner diameter platform cavity, the inner diameter platform cavity being connected with the channel system so as to feed the cooling gas to the inner diameter platform. At least one sealing plate is disposed between the circumferentially arranged side walls of the first vane and the second vane so as to form an intermediate cavity that is fluidically separated from the inner diameter platform cavities.

主权项

1. A stator for a turbine comprising:
an arrangement of vanes including at least a first vane and a second vane circumferentially neighbouring the first vane, each of the first vane and the second vane comprising:
an airfoil;a channel system configured to cool each respective vane with cooling gas; andan inner diameter platform disposed at an inner end of the airfoil, the inner diameter platform including an inner diameter platform cavity and at least one circumferentially arranged side wall which delimits the inner diameter platform cavity, the inner diameter platform cavity being connected with the channel system so as to feed the cooling gas to the inner diameter platform; at least one sealing plate disposed between the at least one circumferentially arranged side wall of the first vane and the at least one circumferentially arranged side wall of the second vane, the at least one circumferentially arranged side walls of the first vane and the second vane facing one another, so as to form an intermediate cavity that is fluidically separated from the inner diameter platform cavity; wherein the at least one sealing plate forms a peripheral sealing that at least substantially encloses the intermediate cavity; wherein the peripheral sealing includes at least one opening that is disposed at a bottom side of the intermediate cavity, which is a radially furthest away side from the airfoil, and that is configured as a gas inlet; and wherein the at least one opening has a circular shape.