BLADE RING ASSEMBLY, GAS TURBINE, AND METHOD FOR REFURBISHING GAS TURBINE

A blade ring assembly including: a turbine blade ring extending in a circumferential direction about an axis; a component to be cooled, disposed on an inner circumferential side of the turbine blade ring; and an outer circumferential side component disposed on an outer circumferential side of the tu...

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Bibliographische Detailangaben
Hauptverfasser: NAGAI, Norihiko, HIROKAWA, Kazuharu, WATANABE, Koji, KOBAYASHI, Hiroaki, TAKETA, Naoki, FUKUI, Yoshio, HASHIMOTO, Shinya, UMEHARA, Takeshi, NAKAMURA, Kenta
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A blade ring assembly including: a turbine blade ring extending in a circumferential direction about an axis; a component to be cooled, disposed on an inner circumferential side of the turbine blade ring; and an outer circumferential side component disposed on an outer circumferential side of the turbine blade ring. The turbine blade ring has a cooling medium intake port leading from an outer circumferential surface to an inner circumferential surface of the turbine blade ring. The outer circumferential side component includes: a first wall portion which covers at least a portion of the cooling medium intake port from the outer circumferential side of the turbine blade ring; and a second wall portion which extends from an end portion of the first wall portion on the axially downstream thereof toward the outer circumferential side of the turbine blade ring.