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Combustor and method for supplying fuel to a combustor

A burner and fuel technology, applied in the direction of combustion method, burner, combustion chamber, etc., can solve problems such as unfavorable flame stability, poor burner performance, impact of emissions, and uneven heating of fuel.

Inactive Publication Date: 2013-05-15
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the convective cooling provided by the fuel before it enters the tubes can lead to uneven heating of the fuel
Thus, variations in the temperature and density of the fuel flowing through the tubes can create thermal stress and / or non-uniform fuel-to-working fluid ratios within the tubes, which in turn can adversely affect flame stability, burner performance, and / or poor emissions have an impact

Method used

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  • Combustor and method for supplying fuel to a combustor
  • Combustor and method for supplying fuel to a combustor
  • Combustor and method for supplying fuel to a combustor

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Embodiment Construction

[0013] Embodiments of the invention will now be described in detail with reference to one or more examples illustrated in the accompanying drawings. This detailed description uses numerical and letter designations to refer to features in the drawings. The same or similar symbols have been used in the drawings and descriptions to refer to the same or similar parts of the present invention. As used herein, the terms "first", "second" and "third" are used interchangeably to distinguish one element from another, but do not indicate the position and importance of each element. Furthermore, the terms "upstream" and "downstream" refer to the relative position of elements in a flow path. For example, if fluid flows from element A to element B, then element A is upstream of element B. Conversely, element B is downstream of element A if element B receives fluid flowing from element A.

[0014] Each example is provided by way of explanation of the invention, not limitation of the inve...

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PUM

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Abstract

A combustor includes a casing that encloses at least a portion of the combustor. A fuel conduit extends downstream from the casing and includes a tortuous path for fuel flow inside the fuel conduit. A method for supplying fuel to a combustor includes flowing a working fluid through tubes that extend axially through an end cap. The method further includes supplying a fuel through a fuel conduit into the end cap, supplying a diluent through a diluent conduit that extends axially inside the fuel conduit, and swirling the fuel flowing through the fuel conduit around the diluent flowing through the diluent conduit.

Description

technical field [0001] The present invention generally relates to a combustor and a method of supplying fuel to the combustor. Background technique [0002] Combustors are commonly used in industrial and power generation operations to ignite fuel to produce combustion gases at high temperature and pressure. Combustor design and operation are influenced by various competing considerations. For example, higher combustion gas temperatures generally increase the thermodynamic efficiency of the combustor. However, higher combustion gas temperatures can also promote flashback or enhanced steady-state conditions in which the combustion flame migrates toward the fuel supplied through the nozzle, potentially causing severe damage to the nozzle in a relatively short period of time. In addition, higher combustion gas temperatures generally increase the splitting rate of divalent nitrogen, increasing nitrogen oxides (NO X ) output. Conversely, lower combustion gas temperatures assoc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D17/00
CPCF23R3/286F23R3/283
Inventor L.J.斯托伊亚P.B.梅顿
Owner GENERAL ELECTRIC CO