GAS TURBINE COMBUSTOR AND TRANSITION PIECE

• Main Authors: YOSHIDA SHOHEI, WATANABE YASUYUKI, WADA YASUHIRO, OKUYAMA NOBORU, HAGITA TATSUYA
• Format: Patent
• Language: English; Japanese
• Published: 05.09.2019
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COMBUSTION APPARATUS; COMBUSTION ENGINES; COMBUSTION PROCESSES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; ENGINE PLANTS IN GENERAL; GAS-TURBINE PLANTS; GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ENGINES; WEAPONS

To prevent the abrasion at the contact part between components from creating by restricting the seal member movement in axial and circumferential directions even having vibration due to burning and stream of the combustion gas.SOLUTION: A gas turbine combustor of the invention, for solving the above problem, comprises: a transition piece 4 of the combustor through which high temperature combustion gas flows inside; a trim 11 installed on the downstream of the transition piece 4 (outlet part); and a seal member 10 installed at the connection part between the trim 11 and a turbine side stator blade part 14 for blocking the inflow of compressed air from the compressor from the connecting part to the turbine side, in which projection members 12 and 17 are provided on the outer surface of the trim 11; movable suppression means 13 and 18 that agree with the projection members 12 and 17 and are provided in the seal member 10 for suppressing the movable of the seal member 10; and the seal member 10 is fixed by engaging the movable suppression means 13 and 18 with the projection members 12 and 17.SELECTED DRAWING: Figure 3 【課題】燃焼ガスの燃焼や流動による振動があっても、シール部材の周方向及び軸方向への移動を抑制して、部材同士の接触部での摩耗の発生を防ぐこと。【解決手段】本発明のガスタービン燃焼器は、上記課題を解決するために、高温の燃焼ガスが内部に流れる燃焼器のトランジションピース４と、該トランジションピース４の下流側（出口部）に設置された額縁１１とを備え、前記額縁１１とタービン側の静翼部１４との連結部に、該連結部から前記タービン側への圧縮機からの圧縮空気の流入を阻止するシール部材１０が設置されているガスタービン燃焼器であって、前記額縁１１の外周に突起部材１２、１７を設けると共に、前記突起部材１２、１７と合致し、前記シール部材１０の可動を抑制する可動抑制手段１３、１８を前記シール部材１０に設け、前記可動抑制手段１３、１８と前記突起部材１２、１７が嵌合して前記シール部材１０が固定されていることを特徴とする。【選択図】図３