STEAM TURBINE

摘要

PURPOSE: To prevent a heat deformation of a stationary blade by installing an upstream stationary ring in an inner casing and attaching a downstream stationary ring to the upstream stationary ring with bolt. CONSTITUTION: An upstream stationary ring 34 is installed at an inner casing 30 through an asperity engaging means 62 and a blade fixing part 34 is attached to an inside of the radius direction of the upstream stationary ring 34. A downstream stationary ring 36 is attached to the upstream stationary ring 34 with keeping a distance between these rings through a spigot engaging means 42 by a connecting blot 44. Thereby, a heat deformation of the downstream stationary ring can be prevented without being influenced by a heat deformation of the inner casing.