| 摘要 |
METHOD AND APPARATUS FOR SUPPRESSING NOx FORMATION IN REGENERATIVE BURNER A method and apparatus for repressing NOx formation and controlling flame shape and characteristic in a regenerative burner during combustion. The regenerative burner having heat storage units with combustion effluent/combustion air ducts therethrough, fuel intake means and a burner. The burner may include a burner baffle, or may include a plurality of gas jets entrained in generally converging fashion for control of the flame characteristics and shape dispositive of NOx formation. The burner may provide for staged combustion, either by means of sequential fuel injection or sequential provision of combustion air, or the burner may repress NOx formation by vitiation of combustion air with products of combustion. The regenerative burner may also include an interconnecting duct communicating with the burners having a coaxial gas nozzle for injecting a high kinetic energy gas stream into the exhausting hot flue gas to induce a portion of the hot flue gas into the interconnecting duct to pass the hot flue gas to the firing burner for vitiation purposes thereby repressing NOx formation. |
