HIGH CAPACITY/LOW NOX RADIANT WALL BURNER

• Main Authors: BUSSMAN, WESLEY RYAN, VENIZELOS, DEMETRIS T, HAYES, RALPH ROBERT, CHAMBERS, JESSE S, POE, ROGER L
• Format: Patent
• Language: English; French
• Published: 14.03.2002
• Edition: 7
• Subjects: AIR; AIR SUPPLY; BLASTING; BURNERS; CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FORCOMBUSTION CHAMBERS, e.g. FIREBRIDGES; COMBUSTION APPARATUS; COMBUSTION PROCESSES; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDEDFOR; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS INCOMBUSTION CHAMBERS; DRAUGHT-INDUCING; HEATING; LIGHTING; MECHANICAL ENGINEERING; METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTIONAPPARATUS; SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS; WEAPONS

A method for operating a radiant wall burner to heat a radiant surface adjacent a combustion zone, said method comprising: providing a fuel lean combustible fuel-air mixture; causing the fuel-air mixture to flow outwardly from a main nozzle, into said combustion zone and generally accross said radiant surface in a circular pattern which essentially surronds said main nozzle in a radial direction; causing the fuel-air mixture to flow outwardly from said main nozzle at an initial velocoty which exceeds the flame speed o f the mixture, whereby a detached round flame is created; providing a secondar y fuel at a location in the furnace on an opposite side of said zone from said radiant surface, said secondary fuel constituting a substantial portion of t he total fuel provided to said combustion zone by said fuel-aire mixture supply system and said secondary fuel nozzle system.