FLOW SLEEVE DEFLECTOR FOR USE IN GAS TURBINE COMBUSTOR

摘要

An apparatus for providing improved cooling to a combustion liner of a gas turbine combustor is provided. A plurality of flow deflectors is secured to a flow sleeve in order to improve the flow of impingement air from a flow sleeve to the combustion liner outer surface, such that the amount of impingement air being swept away by a cross flow of cooling air is reduced.

主权项

1. A gas turbine combustion system comprising:
a combustion liner having a center axis and a first diameter; a flow sleeve extending coaxial with the combustion liner having a second diameter, the second diameter greater than the first diameter thereby forming a first flow annulus therebetween, and a plurality of rows of circumferentially spaced cooling apertures; and, one or more flow deflectors secured to the flow sleeve and extending radially inward from the flow sleeve forming an axially elongated flow channel, the one or more flow deflectors having two sidewalls connected by a forward wall, each sidewall having a radially inward edge and a radially outward edge adjacent the flow sleeve, a first distance separates the radially inward edges and a second distance separates the radially outward edges, the first distance being greater than the second distance.