Burner, gas turbine combustor, burner cooling method, and burner modifying method

A gas turbine and burner technology, which is applied in the fields of burner, gas turbine burner, burner cooling and burner modification, can solve the problems of high flame temperature, high burning speed, and rising metal temperature on the nozzle end face, and achieves the The effect of improving reliability

Active Publication Date: 2006-12-27
MITSUBISHI POWER LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after switching to the exclusive combustion of mixed fuel, because the flame temperature of the mixed fuel is high and the combustion speed is

Method used

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  • Burner, gas turbine combustor, burner cooling method, and burner modifying method
  • Burner, gas turbine combustor, burner cooling method, and burner modifying method
  • Burner, gas turbine combustor, burner cooling method, and burner modifying method

Examples

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Embodiment Construction

[0032] Embodiments of the present invention will be described below using the drawings.

[0033] figure 1 It is a schematic diagram of a gas turbine plant including a burner according to a first embodiment of the present invention.

[0034] The gas turbine plant of the present embodiment includes an air compressor 2, a combustor 3, a turbine 4, a generator 6, a starter motor 8 for driving the gas turbine, and the like. In the air compressor 2 , the sucked air 101 is compressed, and the compressed air 102 from the air compressor 2 is burned by the combustor 3 together with fuels 200 and 201 . When the combustion gas 110 from the combustor 3 is supplied to the turbine 4 , the turbine 4 can obtain rotational power from the combustion gas 110 , and the rotational power of the turbine 4 is transmitted to the air compressor 2 and the generator 6 . The rotational power transmitted to the air compressor 2 is used as compression power, and the rotational power transmitted to the gene...

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PUM

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Abstract

A burner, a gas turbine combustor, a burner cooling method are provided. In a burner (13) for injecting mixed gas fuel containing at least one of hydrogen and carbon monoxide into a combustion chamber of a gas turbine combustor, the burner (13) comprises a fuel nozzle (15) for startup from which liquid fuel is injected into the combustion chamber, a mixed fuel nozzle (16) disposed around the fuel nozzle (15) for startup and injecting the mixed gas fuel, an air swirler (17) disposed at a downstream end of the mixed fuel nozzle (16) and having a plurality of flow passages (17a) from which a part of compressed air from a compressor (2) is injected into the combustion chamber, the mixed fuel nozzle (16) having injection ports (16a) disposed in the inner peripheral side of the flow passages (17a) of the air swirler (17), and cooling holes (53) formed in a nozzle surface (18) positioned to face the combustion chamber and introducing a part of the mixed gas fuel injected from the mixed fuel nozzle (16) into the combustion chamber.

Description

technical field [0001] The present invention relates to a burner using a mixed fuel containing at least either hydrogen or carbon monoxide, a gas turbine burner, a method for cooling the burner, and a method for rebuilding the burner. Background technique [0002] In recent years, fuels for gas turbines have been diversifying, and studies have been conducted on LNG (liquefied natural gas) or light oil, which is the main fuel for gas turbines, and mixed gaseous fuels composed of various components including hydrogen or carbon monoxide other than Type A heavy oil ( Hereinafter referred to as the use of mixed fuel). This mixed fuel has a higher flame temperature than LNG, especially hydrogen has a wide flammable range, fast burning speed and flammability. [0003] When burning LNG, the pre-mixing method becomes the mainstream. However, if the mixed fuel is combusted in a premixed manner, flashback is likely to occur due to changes in characteristics due to changes in fuel com...

Claims

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Application Information

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IPC IPC(8): F23D14/24
Inventor 小泉浩美井上洋笹尾俊文竹原勋
Owner MITSUBISHI POWER LTD
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