FIELD: mechanical engineering.
SUBSTANCE: invention relates to the field of energy, transport and chemical engineering, where it is necessary to organize environmentally friendly fuel combustion, and can be used in gas turbine engines (hereinafter GTE) of stationary and transport energy. The combustion chamber of a gas turbine engine is made up of modular elements arranged in a circle concentric to the engine rotor outside in relation to the last stages of its compressor. Moreover, all modular elements are placed in a single power housing. Inside each modular element, the following is installed: a front device with a concentrically arranged internal diffusion pilot burner with an adjustable fuel supply and an external main pre-mixing burner with a radial blade air swirl and with two independent adjustable fuel supply systems, the main and correcting ones the exhaust channels of which are located in the inter-blade cavities of the specified blade air swirl, as well as a heat pipe with a flame section and a gas outlet section adjacent to the front device. In this case, the flame section of the heat pipe of each of the modules is divided into two consecutive combustion zones, and in the second combustion zone, in which there is at least one through hole in the side wall of the heat pipe for supplying part of the air from the inter-module space, fuel supply means are installed, made in the form of an annular fuel collector having at least one fuel supply fitting and at least two fuel discharge fittings, each of which is connected to distribution channels, made inside each blade of the swirler of the guide device and having outlet openings from the blades of the specified swirler of the guide device into its inter-blade cavities.
EFFECT: technical result is ensuring a low level of nitrogen oxides formation in the combustion chamber of a gas turbine engine at a fuel combustion temperature above 1400°C.
1 cl, 3 dwg
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Authors
Dates
2021-08-12—Published
2020-10-09—Filed