| 摘要 |
PROBLEM TO BE SOLVED: To provide a casing structure of a steam turbine capable of machining a bellows mounting part by the existing equipment. SOLUTION: An outer casing 11 is divided into an upper casing 31 and a lower casing (lower block) 32 by a horizontal plane through which a rotor passes, and the upper casing 31 is divided into an intermediate block 33 having a through-hole 20 and an upper block 34 having a top plate 31a. Accordingly, the bellows mounting part 22 can be machined in such a state that the lower block 32 and the intermediate block 33 are assembled without assembling the upper block 34. COPYRIGHT: (C)2010,JPO&INPIT
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