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: Fukui, Yoshio, Nakamura, Kenta, Umehara, Takeshi, Hirokawa, Kazuharu, Nagai, Norihiko, Hashimoto, Shinya, Taketa, Naoki, Watanabe, Koji, Kobayashi, Hiroaki
Format: Patent
Sprache:eng
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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.