Mitsubishi Heavy Industries Limited

Katsuyoshi Omae

Yoshitaka Terada

Tetsu Konishi

Kenta Taniguchi

Takashi Onozuka

A combustor of the present invention includes: a plurality of nozzles which is arranged around the central axis of a combustor and of which each base end is connected to an oil supply tube; a nozzle tube base which supports the plurality of nozzles and includes an oil chamber supplying fuel to the nozzles via an oil inflow portion provided in each oil supply tube; a first guide portion which faces the center of the combustor inside the oil chamber and guides the oil remaining inside the oil chamber to the oil inflow portion; and a second guide portion which faces the base end of the combustor inside the oil chamber and guides the oil remaining inside the oil chamber to the oil inflow portion.

Combustor and gas turbine

An object is to provide a low cost gas turbine combustor. The gas turbine combustor has a plurality of main nozzles annularly supported on a nozzle pipe base (), and the main nozzles each have an oil fuel path for supplying oil fuel and a gas fuel path for supplying gas fuel. A plurality of the oil fuel paths are provided to penetrate the nozzle pipe base (), and a plurality of lengths of upright piping () are provided to be connected to the oil fuel paths, respectively, and be erected on the nozzle pipe base (). A plurality of lengths of connection piping () for interconnecting the lengths of the upright piping () in a polygonal shape at a minimum distance are provided outside the nozzle pipe base (). An oil fuel supply section () is connected to one of the lengths of the connection piping () to distribute oil fuel to each of the oil fuel paths.

Gas turbine combustor having a dual fuel supply system

A low cost gas turbine combustor has main nozzles having a cylindrical central tube using an interior as an oil fuel path, a cylindrical outer tube disposed on an outermost periphery of the main nozzle, and a support tube disposed between the central tube and the outer tube, the central tube, the outer tube and the support tube each being formed independently. The support tube has such an internal diameter as to form a clearance becoming an insulating air layer between the support tube and an outer periphery of the central tube, and includes supporting portions formed on an axially upstream side and radially contacting an inner periphery of the outer tube groove portions formed along an axial direction between the supporting portions, and a cylindrical portion formed on an axially downstream side and having an external diameter equal to or smaller than an external diameter of the groove portions.

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Takasago, Japan

Katsuyoshi Omae