Mitsubishi Heavy Industries Limited

Mitsubishi Hitachi Power Systems, Ltd.

Atsushi Yuasa

Satoshi Tanimura

Keijiro Saito

Satoshi Takiguchi

Yukio Tanaka

Toshihiko Saito

Hideyuki Uechi

Hidefumi Araki

Masakazu Nose

Mitsunori Isono

Jun Sasahara

Shigemi Mandai

Eisaku Ito

Sosuke Nakamura

Keigo Matsumoto

Kei Inoue

Kotaro Miyauchi

Kazuhiro Domoto

Yukihiro Tominaga

Hikaru Katano

Akimasa Takayama

Yoshiaki Arakawa

Kazuaki Hashiguchi

Keita Tsukahara

Keiji Takeno

Takahiro Jojima

Hideta Ogawa

Shogo Sawa

A raw material fluid treatment plant provided with a raw material reaction apparatus for reacting a raw material fluid to form a reaction gas. The raw material reaction apparatus includes preheaters and a reactor. The preheaters are heat exchangers that perform heat exchange between a second heat transfer medium and the raw material fluid to heat the raw material fluid. The reactor is a heat exchanger that performs heat exchange between a first heat transfer medium differing from the second heat transfer medium and the raw material fluid having been heated by the preheaters to heat and react the raw material fluid.

Raw material fluid treatment plant and raw material fluid treatment method

An ammonia decomposition facility includes a heating medium line configured to flow a heating medium heated by heat generated by a gas turbine, an ammonia supply line configured to flow ammonia, an ammonia decomposition device, and an ammonia removal device. The ammonia decomposition device is configured to use heat of the heating medium from the heating medium line, thermally decompose ammonia from the ammonia supply line, and generate a decomposition gas containing hydrogen, nitrogen, and residual ammonia. The ammonia removal device is configured to remove the residual ammonia contained in the decomposition gas from the ammonia decomposition device.

Ammonia decomposition facility, gas turbine plant equipped with same, and ammonia decomposition method

In this combustion burner and boiler, interference of ignition in a flame stabilizer is suppressed and flame stabilizing performance is improved by providing: a fuel nozzle which ejects a fuel gas that is a mixture of pulverized coal and air; a combustion air nozzle which ejects a fuel gas combustion air from outside of the fuel nozzle; a secondary air nozzle which ejects secondary air from the outside of the combustion air nozzle; and a flame stabilizer which comprises a first flame stabilizer main body which is arranged at the leading end of the fuel nozzle and separated by a prescribed space from the inner wall surface of the fuel nozzle and which forms a ring shape having as the center an axial line along the ejection direction of the fuel gas.

Combustion burner and boiler

A combustion burner for a boiler includes: an inner cylinder defining a fuel supply passage for supplying fuel; an outer cylinder surrounding the inner cylinder and defining an air supply passage between the inner cylinder and the outer cylinder; and a swirler in the air supply passage, the swirler being configured to swirl air in the air supply passage. The swirler includes a plurality of blades radially disposed between the inner cylinder and the outer cylinder, the plurality of blades extending from an air-supply side toward a combustion-space side of the air supply passage, and each of the plurality of blades having, at least on an inner cylinder side of the blade, a section with a thickness varied in a burner axial direction, the thickness being smaller at an edge portion on the combustion-space side than at a maximum-thickness section of the blade.

Combustion burner for boiler

An object is to realize combustion flame which can further reduce the amount of NOx generation. A combustor () includes a pilot nozzle (); a plurality of main nozzles () arranged apart from the pilot nozzle () in the circumferential direction on the outer peripheral side of the pilot nozzle () and configured to perform premix combustion; a combustor basket () surrounding the pilot nozzle () and each main nozzle (); an outlet outer ring () provided at a tip end of the combustor basket (); and a combustion liner () fitted, at an inner surface thereof, onto the outer periphery of the combustor basket () and surrounding the outlet outer ring (). The outlet outer ring () is formed parallel to an inner wall surface () of the combustion liner ().

Combustor and gas turbine

A combustor includes: a pilot burner; a plurality of main burners, each of which is provided radially and outwardly along a circumferential direction about the pilot burner, and including a main nozzle disposed in a main burner cylinder; and an extension tube provided to extend toward a downstream side from the main burner cylinder of each of the main burners. The extension tube has a circular inlet communicating with the main burner cylinder, and an outlet at the downstream side comprising two radial edges parallel to the radial direction and two circumferential edges formed along the circumferential direction so as to connect both ends of the radial edges. The combustor further includes an air passage formed outside of the main burner cylinder; and an inner communication hole (formed at the side of the inlet of the extension tube and at a position corresponding to the radially and inwardly circumferential edge for allowing communication between the air passage and the inside of the extension tube.

Provided is a combustor that is made compact and achieves NOx reduction. In the combustor () including a pilot nozzle () disposed along the central axis of the combustor () and performing diffusion combustion, a plurality of main nozzles () disposed on the outer peripheral side of the pilot nozzle () at intervals in the circumferential direction and performing premixing combustion, a single inner cylinder () surrounding the pilot nozzle () and the main nozzles (), and an outer cylinder approximately coaxially surrounding the outer side of the inner cylinder () to form a compressed air passage () between the inner peripheral surface thereof and the outer peripheral surface of the inner cylinder and turning the flow direction of compressed air flowing in the compressed air passage () in approximately the opposite direction at the end of the inner cylinder () to introduce the compressed air into the pilot nozzle (), the compressed air passage () is provided with a flow rate controller that makes the flow rate on the combustor () inner peripheral side of the passage larger than that on the outer peripheral side. An example as the flow rate controller is a baffle plateprovided with holes

Combustor

A combustor includes: a combustor basket configured to surround a fuel nozzle from an outer circumferential side, and a plurality of connecting members formed in a circumferential direction at intervals to connect a rear end of the combustor basket and a casing and configured to define a flow path through which compressed air introduced into the combustor basket flows. A circulation direction of the compressed air flowing through the flow path is configured to be reversed at a rear end of the combustor basket and the compressed air is introduced into the fuel nozzle. The flow path is partially or entirely inclined in the circumferential direction to blow the compressed air.

Combustor and rotating machine

In a combustor, divisional fluid passages of a first group, and divisional fluid passages of a second group are present on an inner peripheral side, and divisional fluid passages are also present on an outer peripheral side, and swirl air flows are gushed from the divisional fluid passages. When the total amount of fuel supplied to the combustor is small as in a speed increasing state or in a low load state, fuel is injected only into the divisional fluid passages of the first group. Since a fuel injection region is limited to a position on the inner peripheral side, particularly, a specific position, the concentration of a fuel gas comprising a mixture of fuel and air is lean, but is higher than a flammability limit concentration, even when the total amount of fuel is small.

Combustor of gas turbine and combustion control method for gas turbine

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Tokyo, Japan

Atsushi Yuasa