Abstract: A vertical joint coupling structure includes a first casing in which combustion gases flow, a second casing connected to the first casing, a vertical joint mounted on the second casing and coupled to the first casing, a plurality of bolt fasteners fastened to the vertical joint and the first casing, a plurality of jacking screws inserted into the vertical joint to secure a gap between the vertical joint and the first casing upon disassembly or assembly between the first casing and the second casing, and a shim member inserted into the gap between the vertical joint and the first casing.

Abstract: A strut structure of a gas turbine, an exhaust diffuser and a gas turbine including the same are provided. The strut structure of a gas turbine, the strut structure being formed in an annular exhaust passage formed between an inner casing and an outer casing of the gas turbine, includes a strut housing configured to include a lower end which is connected to the inner casing and an upper end which is connected to the outer casing, and a strut groove configured to be formed on at least one end of the upper end and the lower end of the strut housing to connect a front end and a rear end thereof.

Abstract: A turbine exhaust unit supporting device that supports a turbine exhaust unit is provided. The turbine exhaust unit supporting device installed at a rear side of a turbine casing to support a turbine exhaust unit through which exhaust gas passing through a turbine is discharged, the supporting device includes a casing supporting block unit installed on an outer circumferential surface of the turbine casing, an exhaust unit supporting block unit spaced apart from the casing supporting block unit and installed on an outer circumferential surface of the turbine exhaust unit, and a rotary coupler including a first end rotatably coupled to the casing supporting block unit and a second end rotatably coupled to the exhaust unit supporting block unit.

Abstract: A vibration damper capable of damping vibrations occurring from a turbine casing, an exhaust diffuser system including the vibration damper, and a gas turbine including the exhaust diffuser system are provided. The vibration damper installed on an outer casing of a gas turbine to damp vibrations generated in the gas turbine, the vibration damper includes a reinforcing support part including a plurality of reinforcing plates, a first flange coupled to both longitudinal ends of the reinforcing support part and fixed to a protruding support protruding from the outer casing, and a second flange disposed between the plurality of reinforcing plates to connect the plurality of reinforcing plates, wherein each of the plurality of reinforcing plates is erected and installed on an outer circumferential surface of the outer casing.

Abstract: A vibration damper capable of damping vibrations occurring from a turbine casing, an exhaust diffuser system including the vibration damper, and a gas turbine including the exhaust diffuser system are provided. The vibration damper installed on an outer casing of a gas turbine to damp vibrations generated in the gas turbine, the vibration damper includes a reinforcing support part including a plurality of reinforcing plates, a first flange coupled to both longitudinal ends of the reinforcing support part and fixed to a protruding support protruding from the outer casing, and a second flange disposed between the plurality of reinforcing plates to connect the plurality of reinforcing plates, wherein each of the plurality of reinforcing plates is erected and installed on an outer circumferential surface of the outer casing.

Abstract: A turbine exhaust unit supporting device that supports a turbine exhaust unit is provided. The turbine exhaust unit supporting device installed at a rear side of a turbine casing to support a turbine exhaust unit through which exhaust gas passing through a turbine is discharged, the supporting device includes a casing supporting block unit installed on an outer circumferential surface of the turbine casing, an exhaust unit supporting block unit spaced apart from the casing supporting block unit and installed on an outer circumferential surface of the turbine exhaust unit, and a rotary coupler including a first end rotatably coupled to the casing supporting block unit and a second end rotatably coupled to the exhaust unit supporting block unit.

Abstract: A strut structure of a gas turbine, an exhaust diffuser and a gas turbine including the same are provided. The strut structure of a gas turbine, the strut structure being formed in an annular exhaust passage formed between an inner casing and an outer casing of the gas turbine, includes a strut housing configured to include a lower end which is connected to the inner casing and an upper end which is connected to the outer casing, and a strut groove configured to be formed on at least one end of the upper end and the lower end of the strut housing to connect a front end and a rear end thereof.

Abstract: A gas turbine includes a bearing housing surrounding an outside of a tie rod provided on the turbine. One end of a power strut is connected to an outside of the bearing housing, and the other end is radially arranged outwards. A cooling-air supply unit supplies cooling air to the power strut. A heat exchange unit is disposed in the power strut to perform a heat exchange process with cooling air supplied through the cooling-air supply unit. A ring-shaped support frame is connected to the other end of the power strut.

Abstract: A gas turbine includes a bearing housing surrounding an outside of a tie rod provided on the turbine. One end of a power strut is connected to an outside of the bearing housing, and the other end is radially arranged outwards. A cooling-air supply unit supplies cooling air to the power strut. A heat exchange unit is disposed in the power strut to perform a heat exchange process with cooling air supplied through the cooling-air supply unit. A ring-shaped support frame is connected to the other end of the power strut.