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

A burner and combustion chamber technology, which is applied in the field of burner, gas turbine burner, burner cooling and burner transformation, can solve the problems of high flame temperature, high combustion speed, and rising metal temperature on the nozzle end surface. To achieve the effect of improving reliability

Active Publication Date: 2009-12-16
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 also fast, the flame is easy to approach the end face of the nozzle, so there is a danger of the metal temperature on the end face of the nozzle rising

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

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Embodiment Construction

[0033] Embodiments of the present invention will be described below using the drawings.

[0034] figure 1 It is a schematic diagram of a gas turbine plant including a burner according to a first embodiment of the present invention.

[0035] 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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Abstract

The invention provides a burner, a gas turbine burner and a cooling method for the burner. In the burner (13) of the present invention that injects a gaseous fuel (201) containing at least any one of hydrogen or carbon monoxide into the combustion chamber of the burner (3), it is equipped with: injecting a liquid fuel (200) into the combustion chamber The starting fuel nozzle (15) of the nozzle; the mixed fuel nozzle (16) which is arranged around the nozzle and injects gaseous fuel; is arranged at the end of the nozzle, and has the function of compressing the air from the air compressor (2) A part (102a) is injected into the flow channel (17a) of the combustion chamber, and the air circulator (17) is arranged on the inner circumference of the flow channel (17a) with the injection hole (16a) of the mixed fuel nozzle (16); and It is provided on the nozzle end surface (18) facing the combustion chamber, and injects a part of the gaseous fuel injected from the mixed fuel nozzle to the cooling hole (53) of 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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Patent Type & Authority Patents(China)
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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