Abstract: A burner includes an axis and a configuration which is rotationally symmetrical relative to the axis and includes an outer casing and an inner casing coaxial thereto. The configuration defines an annular gap extending from an inlet to an outlet for guiding a stream of oxygen-containing gas. A multiplicity of nozzles for supplying a fuel to the stream and a swirl lattice are disposed in the annular gap. The configuration including the outer and inner casings is constructed in such a way that the stream flows through the annular gap between the swirl lattice and the outlet at an essentially constant meridional velocity. The burner is particularly suitable for use in a gas turbine.

Abstract: A tube assembly, such as a flame tube for a gas turbine plant, includes a tube segment having an inner region for guiding a hot gas in one flow direction. A heat shield faces toward the inner region and includes a plurality of bricks being disposed side by side. At least one metal support frame supports the heat shield. The support frame has a plurality of conduits for supplying a cooling gas and a lip encompassing the tube segment and substantially covering the conduits toward the inner region leaving a slit for conducting the cooling gas from the conduits past the lip to the inner region.