COMBUSTION DEVICE OF A GAS TURBINE INSTALLATION Russian patent published in 2021 - IPC F23R3/28 

FIELD: mechanical engineering.

SUBSTANCE: invention relates to the combustion device of a gas turbine installation. The combustion device of the gas turbine installation comprises a pre-prepared mixture burner and a combustion chamber for burning fuel and air supplied from the pre-prepared mixture burner, wherein the pre-prepared mixture burner contains a fuel nozzle for injecting fuel supplied from the fuel supply system and a channel for the pre-prepared mixture for mixing fuel injected from the fuel nozzle and air supplied from the air channel and fuel-air mixture into the combustion chamber, in this case, the fuel nozzle contains: a tapering section, the outer diameter of which gradually decreases from the near side to the far side of the fuel nozzle, a flat section extending from the tapering section in the direction of the far side of the fuel nozzle and having a constant outer diameter from the near side to the far side of the fuel nozzle, a fuel channel formed in the fuel nozzle and passing in the axial direction of the fuel nozzle, and many groups of fuel injection holes, formed in the fuel nozzle to provide fluid communication between the fuel channel and the outer side of the fuel nozzle, each group includes at least one fuel injection hole, while these groups are separated from each other in the axial direction of the fuel nozzle, and these groups of fuel injection holes include at least one group of fuel injection holes formed in a narrowing section.

EFFECT: invention makes it possible to reduce the amount of NOx emissions.

5 cl, 21 dwg