LOW NOX COMBUSTION METHOD FOR RADIANT TUBE BURNER AND RADIANT TUBE BURNER EXECUTING THE SAME COMBUSTION METHOD

摘要

PURPOSE: To perform reliable production of an effect to reduce the generation of NOx by a method wherein the effect is produced through burner structure which is simple and reduced in a space. ;CONSTITUTION: Other gas than fuel not contributed to combustion is mixed in fuel to inject the fuel-air mixture through a fuel nozzle 4. The fuel-air mixture is fed to the whole of a region where flame is present, heat is absorbed without combustion, and the maximum temperature of flame is reduced. In order to execute the above, a nozzle 7 to inject other gas than fuel coaxially with the fuel nozzle 4 is arranged to the root part of the fuel nozzle 4, and other gas than fuel is injected directly in fuel in the same direction as that of fuel.;COPYRIGHT: (C)1993,JPO&Japio