| 摘要 |
A vapor tube structure in a gas turbine comprises first connecting tubes fixed to a casing, second connecting tubes fixed to a blade ring, a recovery ring and a cooling recovery ring, a bellows tube of the flexible structure, springs, a tube and a piston rings provided between the first connecting tubes and the second connecting tubes. As a result, it is possible to absorb and follow the thermal expansion/contraction difference and prevent leaking of vapor.
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