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Fuel nozzle and method for swirl control

A fuel nozzle and fuel technology, which can be used in combustion methods, combustion chambers, combustion equipment, etc., can solve problems such as shortening the life of nozzles and burners, and insufficient combustion.

Inactive Publication Date: 2012-03-21
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Additionally, flame spread in the nozzle can lead to incomplete combustion and shorten nozzle and burner life

Method used

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  • Fuel nozzle and method for swirl control
  • Fuel nozzle and method for swirl control
  • Fuel nozzle and method for swirl control

Examples

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Embodiment Construction

[0081] figure 1 A cross-sectional side view of a portion of an embodiment of a gas turbine engine 10 that includes a combustor 100 and a compressor 102 . The gas turbine engine includes a compressor 102, a combustor 100, and a turbine 103, where the turbine is schematically depicted. In turbine engine 10, combustion of an air-fuel mixture in combustor 100 rotates turbine 103 to generate mechanical energy in the form of a rotational output. The rotation of turbine 103 also compresses air within compressor 102 . Additionally, the gas turbine engine may include a plurality of compressors 102 , combustors 100 and turbines 103 .

[0082] In one aspect, the combustor 100 uses liquid and / or gaseous fuels, such as natural gas or hydrogen-rich synthesis gas, in order to operate the engine. For example, fuel nozzles 104 are coupled to cover plate 105 and introduce supply air 106 and supply fuel 107 . Supply air 106 and supply fuel 107 are in fluid communication with fuel nozzles 104...

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PUM

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Abstract

According to one aspect of the disclosure, an apparatus for injecting fuel is provided, where the apparatus includes a cone structure that includes a passage to form a swirl of an air-fuel mixture in a combustion chamber. The apparatus also includes at least one adjustable vane positioned in the passage configured to control the swirl of the air-fuel mixture and control a flame stability.

Description

technical field [0001] The subject matter disclosed herein relates to gas turbines. More specifically, the subject matter relates to combustors in gas turbines. Background technique [0002] In a gas turbine, the combustor converts the chemical energy of the fuel or air-fuel mixture into thermal energy. Thermal energy is conveyed through a fluid, usually air from a compressor, to a turbine where it is converted into mechanical energy. A variety of factors can affect the efficiency with which thermal energy is converted into mechanical energy. These factors may include blade passing frequency, fuel supply fluctuations, fuel type and reactivity, combustor head end volume, fuel nozzle design, air-fuel profile, flame shape, air-fuel mixing, flame holding ) and flame stability. For example, fuels with high reactivity are desirable due to combustion behavior and / or cost. However, highly reactive fuels can increase the incidence of flame holding. Flame stability is affected b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23R3/28F23R3/58
CPCF23C2900/07002F23R3/286F23R3/14F23R3/26
Inventor M·巴蒂纳R·J·基拉S·塞尔文
Owner GENERAL ELECTRIC CO
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