Gas turbine combustor

Details Gas turbine combustor Gas turbine combustor

F - Mech Eng,Light,Heat,Weapons

23

R

F23R 3/16 (2006.01) F23D 17/00 (2006.01) F23D 23/00 (2006.01) F23R 3/28 (2006.01) F23R 3/34 (2006.01)

Patent

CA 2330262

A gas turbine combustor, in which plural pre-mixers that inject fuel into swirling air passages are arranged to surround a pilot burner, and a pilot flame, guided by a pilot cone in the shape of a flaring pipe and provided at the rear end of the pilot burner, is mixed with a pre- mixture blown out from the pre-mixers to obtain a combustion gas, comprising flame-stabilizing means. The flame-stabilizing means lower the disturbance in a region where the pre-mixture and the pilot flame are mixed or stabilize the pilot flame, so that the flame generated by igniting the pre-mixture with the pilot flame is stabilized. By stabilizing the flame, combustion with a leaner air-fuel ratio is possible, and thereby the amount of NOx can be decreased.

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