FIELD: power industry.
SUBSTANCE: burner is provided with a central fuel feed layout and an annular air duct enclosing the central fuel feed layout for supply of combustion air and with vortex vanes located in the annular air duct and having the first gas atomisers for spraying of gaseous fuel to the combustion air and the second gas atomisers for spraying of gaseous fuel to the combustion air. The first gas atomisers are fed from the first annular gas-distributing duct in the fuel feed layout. The second gas atomisers are fed from the second annular gas-distributing duct in the fuel feed layout. The first annular gas-distributing duct and the second annular gas-distributing duct are equipped with combustible gas from a common gas feed pipe located with an offset towards the pilot burner located in the centre and near and parallel to it and having the first gas feed duct and the second gas feed duct. The first gas feed duct is connected to the first gas-distributing duct and the second gas feed duct is connected to the second gas-distributing duct.
EFFECT: invention is aimed at implementation of possible feeding of combustible gas to the second gas outlet duct without any sufficient change of an external profile of a central fuel feed layout.
15 cl, 8 dwg
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