A combustion device for generating hot gases

A combustion device 10 has a plurality of swirl-stabilised premix burners 12,.., 15 of identical thermal power output. The burners are arranged parallel to an axis 28 of a common combustion chamber 11, and the flames or flame fronts 24,.., 27 generated by the burners are positioned so as to be distr...

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Bibliographic Details
Main Authors WOLFGANG POLIFKE, FRANZ JOOS, ALEXANDER NI
Format Patent
LanguageEnglish
Published 03.03.2004
Edition7
Subjects
AIR
BLASTING
BURNERS
COMBUSTION APPARATUS
COMBUSTION PROCESSES
GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGHVELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS
HEATING
LIGHTING
MECHANICAL ENGINEERING
METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN
WEAPONS
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Summary:A combustion device 10 has a plurality of swirl-stabilised premix burners 12,.., 15 of identical thermal power output. The burners are arranged parallel to an axis 28 of a common combustion chamber 11, and the flames or flame fronts 24,.., 27 generated by the burners are positioned so as to be distributed along the axis. The defined axial position of the flames is caused by an injection of air at the inlet and/or outlet of the burners. The combustion device may be used to drive a gas turbine, and the burners may provide secondary combustion. Several burners (33,35 fig 2) may also include a diffuser at their outlet (44, 45 fig 2), to further define the axial position of the flame front, with respect to burners without diffuser means (32,34 fig 2). The burner arrangement may be used to suppress thermoacoustic combustion instabilities without compromise of NOx emission performance.
Bibliography:Application Number: GB20030027147