IMPROVED FLAME TUBE OR LINER FOR A COMBUSTION CHAMBER OF AGAS TURBINE WITH LOW EMISSION OF POLLUTANTS

摘要

An improved flame tube or "liner" (112) for a combustion chamber (110) of a gas turbine with low emission of pollutants, of the type; comprising a cylindrical structure connected to the outlet of a premixing chamber (114) by means of a truncated conical end (120), in which the premixing chamber (114) is supplie d with air which is guided by a cavity (116) which is located between the flame tub e (112) and outer walls (118) of the combustion chamber (110), this air circulating in the opposite direction to the flow of combustion products; a first cylindrical region (122) of the flame tube (112) is surrounded by a cylindrical casing (136) which creates an annular chamber (138).