FIELD: power industry.
SUBSTANCE: invention relates to power industry. A mixing method of dilution air with the main hot flow in a subsequent combustion system of a gas turbine; with that, the gas turbine includes a compressor, the first combustion chamber connected downstream to the compressor. Hot gases from the first combustion chamber are supplied to one intermediate turbine or directly to the second combustion chamber; with that, hot gases from the second combustion chamber are supplied to an additional turbine or directly to an energy recovery system. The method involves a stage at which coaxial introduction of cooling air of the flame tube of the first combustion chamber with cooling air of the flame tube of the second combustion chamber is performed. Besides, according to the invention, a mixer of dilution air, as well as versions of a combustion chamber for the method's implementation are presented.
EFFECT: invention allows improving operating efficiency of a gas turbine.
17 cl, 10 dwg
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