| 摘要 |
A structure and a method for holding inserts which enable stationary blades of a gas turbine to withstand a temperature of as high as 1500 ~C, for the purpose of realizing a 1500 ~C-class turbine; more particularly a structure for holding inserts for each stationary blade (1) of a gas turbine, wherein the stationary blade (1) is provided with hollows (2, 3, 4) for holding inserts (5, 6, 7) each of which has a plurality of cooling air ejection holes (8) in side walls thereof, the wall surfaces of the hollows (2, 3, 4) being cooled with the cooling air ejected from the cooling air ejection holes (8), the stationary blade comprising two seal plates (9a-9f) provided on side surfaces of the inserts (5, 6, 7), and two grooves (11a-11f) engaged with the seal plates (9a-9f) and provided in the wall surfaces of the hollows (2, 3, 4), at least one (11b, 11c, 11d, 11e) of the two grooves (11a-11f) being provided in seal blocks (10b, 10c, 10d, 10e) fixed to the wall surfaces of the hollows. |
