LOW NOx FLAT FLAME BURNER

摘要

A flat flame burner (30) is disclosed having flow passages (32, 42) for admitting fuel and air to a burner tile. A structure (34) for producing a rotational flow cooperates with a divergent burner tile (36) in order to produce a radially-divergent flame with a very small axial component and a high degree of entrainment of inert combustion products in a furnace. A portion of the fuel is injected into the entrained furnace products, in order to suppress the rate of combustion, so as to produce an ultra low NOx flat flame burner. The present invention also permits greater versatility and operability over previous flat flame burners.