Method for disassembling/assembling gas turbine, seal plate assembly, and gas turbine rotor

A method for disassembling/assembling a gas turbine including a seal plate disposed on a first side of a rotor disc in an axial direction of the rotor disc, and a seal plate restraint part for restricting movement of the seal plate relative to the rotor disc in a radial direction of the rotor disc i...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Takaoka, Yoshimasa, Ikushima, Naoki, Murata, Masahiro, Hashimoto, Shinya, Shimmyo, Tetsuya, Tsutsumi, Eiichi
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A method for disassembling/assembling a gas turbine including a seal plate disposed on a first side of a rotor disc in an axial direction of the rotor disc, and a seal plate restraint part for restricting movement of the seal plate relative to the rotor disc in a radial direction of the rotor disc includes a seal-plate-restraint-state switching step of moving the seal plate restraint part along the axial direction to switch between a seal plate non-restraint state where the seal plate restraint part does not restrict movement of the seal plate in the radial direction and a seal plate restraint state where at least a part of the seal plate restraint part protrudes in the axial direction from the seal plate and thereby restricts movement of the seal plate in the radial direction.