Burners

Details Burners Burners

F - Mech Eng,Light,Heat,Weapons

23

D

158/47

F23D 99/00 (2010.01) F23C 3/00 (2006.01) F23C 7/02 (2006.01) F23D 14/22 (2006.01) F23M 5/02 (2006.01)

Patent

CA 1224132

-1- ABSTRACT The present invention relates to a burner which, in one mode can serve as a burner per se and in an alternate mode as a flue for removing waste gas from a combustion space. The burner has a body 1 which defines a passage 2 forming in part a flow path for gases between two openings 3 and 4. The first opening serves either as inlet for receiving air for combustion with the fuel in a combustion chamber 16 in one mode of operation or as an outlet for discharging waste gas from the passage 2 in an alternate mode. The second opening 3 serves as an outlet for combustion products in the one mode of operation or as an inlet for receiving waste gas in the alternate mode. An assembly 5 injects fuel and air into the passage 2 and the fuel and air first mix in a nozzle 31 with the fuel being ignited by an electrode 47. The fuel is combusted in a pre- combustion chamber 32 before entering the main combustion chamber 16. The fuel is partially or fully pre-combusted irrespective of the mode in which the burner is operating to avoid prepurging with air or re-ignition between flue and firing cycles.

449155

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