Main burner, method and apparatus

Details Main burner, method and apparatus Main burner, method and apparatus

F - Mech Eng,Light,Heat,Weapons

23

C

F23C 13/06 (2006.01) F23C 6/04 (2006.01) F23Q 11/04 (2006.01) F23R 3/40 (2006.01)

Patent

CA 2459986

A method and apparatus for use with a main burner of a gas turbine is disclosed. A rich fuel air mixture is catalytically oxidized with the resulting reacted mixture (48) being made lean by having additional air (46) added thereto. The resulting lean mixture (49) is then combusted in the presence of the main mixture (72) that is also lean thereby supporting combustion of the main mixture (72).

Cette invention concerne un procédé et un dispositif s'utilisant avec le brûleur principal d'une turbine à gaz. Le procédé met en jeu une combustion catalytique venant renforcer la combustion principale. Plus précisément, un mélange combustible /air riche est oxydé par catalyse, ce qui donne par réaction un mélange appauvri par adjonction d'air. Le mélange pauvre ainsi obtenu est ensuite brûlé en présence du mélange principal, également pauvre, dont il vient renforcer la combustion. Ce procédé permet d'améliorer la marge de débit d'un mélange principal pauvre.

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