Improved airflow distribution to a low emission combustor

Details Improved airflow distribution to a low emission combustor Improved airflow distribution to a low emission combustor

F - Mech Eng,Light,Heat,Weapons

02

C

F02C 1/00 (2006.01)

Patent

CA 2627511

An apparatus and method of providing a gas turbine combustor having increased combustion stability and reducing pressure drop across a gas turbine combustor is disclosed. A plurality of vanes is fixed to a flow sleeve radially between the flow sleeve and a combustion liner. The plurality of vanes serve to direct a flow of air entering the region between the flow sleeve and combustion liner in a substantially axial direction, such that components of tangential velocity are removed thereby providing a more uniform flow of air the combustion chamber and reducing the amount of pressure lost due attempting to straighten the airflow by pressure drop alone.

Appareil et procédé pour assurer à un brûleur de turbine à gaz une stabilité de combustion accrue et réduire la chute de pression à la traversée d'un brûleur de turbine à gaz. Une pluralité d'aubes est fixée à une chemise d'écoulement dans le sens radial entre la chemise d'écoulement et un revêtement intérieur de combustion. La pluralité d'aubes sert à diriger un flux d'air entrant dans la région comprise entre la chemise d'écoulement et le revêtement intérieur de combustion dans une direction sensiblement axiale, de telle sorte que les composantes de vitesse tangentielle soient supprimées, donnant ainsi un écoulement d'air plus uniforme dans la chambre de combustion et réduisant l'ampleur de la perte de pression due à la tentative de redresser l'écoulement d'air par la seule chute de pression.

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