Turbine blade tip clearance control apparatus and gas turbine comprising the same

A turbine blade tip gap controller of the present invention includes: a turbine casing guiding the flow of combustion gas; an actuator ring mounted on the outside of the turbine casing to be rotatable; a plurality of turbine blades mounted in the turbine casing to be rotatable; a plurality of ring s...

Full description

Saved in:
Bibliographic Details
Main Authors HA JIN BONG, KOREPIN OLEKSIY
Format Patent
LanguageEnglish
Korean
Published 25.10.2021
Subjects
Online AccessGet full text

Cover

Loading…
More Information
Summary:A turbine blade tip gap controller of the present invention includes: a turbine casing guiding the flow of combustion gas; an actuator ring mounted on the outside of the turbine casing to be rotatable; a plurality of turbine blades mounted in the turbine casing to be rotatable; a plurality of ring segments surrounding a front end part of the plurality of turbine blades and installed with a predetermined gap from the front end part thereof; a plurality of rotary shafts having one end connected with the plurality of ring segments and having the other end extended in a radial direction to the outside of the turbine casing; a link member rotating the rotary shafts in accordance with the circumferential rotation of the actuator ring; and a pusher member provided in an inner end part of the rotary shafts to move the ring segments inward in a radial direction through the rotation of the rotary shafts. Therefore, the present invention is capable of collectively controlling tip gaps of the plurality of turbine blades. 본 발명의 터빈 블레이드 팁 간극 제어장치는, 연소가스의 유동을 안내하는 터빈 케이싱; 상기 터빈 케이싱의 외측에 회전가능하게 장착되는 액추에이터 링; 상기 터빈 케이싱 내부에 회전가능하게 장착되는 복수의 터빈 블레이드; 상기 복수의 터빈 블레이드의 선단부를 둘러싸고 그 선단부와 소정 간극을 갖도록 설치되는 복수의 링 세그먼트; 일단부가 상기 복수의 링 세그먼트에 연결되고 타단부가 상기 터빈 케이싱의 외부까지 반경방향으로 연장되는 복수의 회전축; 상기 액추에이터 링의 원주방향 회전운동에 따라 상기 회전축을 회전시키는 링크부재; 및 상기 회전축의 내측 단부에 구비되어 상기 회전축의 회전에 의해 상기 링 세그먼트를 반경방향 내측으로 움직이는 푸셔부재를 포함한다.
Bibliography:Application Number: KR20200076604