| 摘要 |
PROBLEM TO BE SOLVED: To provide a turbine nozzle support device that prevents steam from leaking from a gap between horizontal division planes due to temporal thermal deformation.SOLUTION: In a turbine nozzle support device 12L configured such that a turbine nozzle and a casing are each halved by a horizontal joint plane H into an upper half part and a lower half part and a casing lower half part 9b supports a diaphragm outer ring lower half part 6b, a vertical groove 13b is formed in the casing lower half part 9b and a plate 18b' for fixation is fixed; and a horizontal groove 15b for accommodating the plate 18b' for fixation is formed in the opposed diaphragm outer ring lower half part 6b, and a tip of a height adjusting screw 17b screwed in from the side of the horizontal division plane is made to abut on the plate 18b' for fixation in the lateral groove 15b so as to align the diaphragm outer ring lower half part. Further, a screw 25 is screwed in the plate 18b' for fixation while penetrating the diaphragm outer ring lower half part 6b from the side of the horizontal division plane, and a tip of the screw 25 is made to abut on a bottom part of the lateral groove 15b so as to prevent a nozzle half part from floating. |
