Toshiba Energy Systems & Solutions Corporation

Kabushiki Kaisha Toshiba

Hiroki Kasuya

Masao Itoh

Yuichi Morisawa

Yasunori Iwai

Takashi Sasaki

Hideaki Shimada

Tomomi Okuyama

Kojiro Tada

Ryu Hirayama

A combined cycle power generation facility of an embodiment includes a first heat recovery steam generator including a high-pressure steam generation part using an exhaust gas of a gas turbine and a reheat part; a high-pressure turbine to which steam is introduced from the high-pressure steam generation part; a combustor which combusts hydrogen and oxygen; a reheat steam pipe connecting the high-pressure turbine and the combustor with the reheat part interposed therebetween; an oxygen-hydrogen combustion turbine to which steam is introduced from the combustor; a second heat recovery steam generator including a steam generation part using an exhaust gas of the oxygen-hydrogen combustion turbine; a low-pressure turbine to which steam is introduced from the steam generation part; and a condenser which steam is introduced from the low-pressure turbine.

Combined cycle power generation facility

A combustor structure of an embodiment includes: a plurality of combustors; a rear liner which guides a combustion gas from the plurality of combustors to a downstream side; and a scroll which guides the combustion gas from the rear liner in an axial direction and a circumferential direction of a turbine rotor. Each of the combustors includes: a combustor liner; a fuel supply part which supplies fuel into the combustor liner; and an oxidant supply part which supplies a swirling flow of an oxidant from the circumference of the fuel supply part into the combustor liner. The plurality of combustors include: the combustor in which a swirling direction of the swirling flow of the oxidant is clockwise; and the combustor in which a swirling direction of the swirling flow of the oxidant is counterclockwise.

Gas turbine combustor structure

A combustor structure of an embodiment is disposed to penetrate, from a direction perpendicular to an axial direction of a turbine rotor in a supercritical COgas turbine which uses supercritical COfor a working fluid, a casing of the supercritical COgas turbine. The combustor structure includes a plurality of combustors. Each of the combustors includes: a combustor liner in a cylindrical shape, which combusts fuel and an oxidant; a fuel supply part which is provided at an upstream end of the combustor liner and supplies the fuel into the combustor liner; and an oxidant supply part which is provided at the upstream end of the combustor liner and supplies the oxidant into the combustor liner.

In a burner of an embodiment, a torch part includes: a torch combustor liner that is provided in a torch part casing and burns a fuel and an oxidant; a torch fuel supply part that supplies a fuel; a torch oxidant supply part that supplies an oxidant; an ignition device that ignites a fuel-air mixture; and a combustion gas pipe that is arranged at the center of the torch part and leads a combustion gas in the torch combustor liner to one end side of the torch part. A main fuel-main oxidant supply part includes: a main fuel supply passage formed in an annular shape on an outer periphery of the torch part; and a main oxidant supply passage formed in an annular shape on an outer periphery of the main fuel supply passage.

Burner with torch ignition mechanism and operation method thereof

An entire scroll is effectively cooled. A scroll of an embodiment leads combustion gas to a turbine stage as a working medium for driving a turbine rotor in a gas turbine facility, and includes a scroll inner cylinder and a scroll outer cylinder. The working medium flows into the scroll inner cylinder. The scroll outer cylinder is provided to cover the scroll inner cylinder with a scroll cooling flow path therebetween where a cooling medium with a temperature lower than the working medium is supplied. The scroll cooling flow path includes an inner ring side flow path part located inside than the scroll inner cylinder in a radial direction of the turbine rotor and an outer ring side flow path part located outside than the scroll inner cylinder in the radial direction of the turbine rotor. Here, a dividing part dividing the outer ring side flow path part in an axial direction along a rotation axis of the turbine rotor is provided at the scroll inner cylinder.

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Yokohama, Japan

Hiroki Kasuya