F - Mech Eng,Light,Heat,Weapons – 23 – D
Patent
F - Mech Eng,Light,Heat,Weapons
23
D
F23D 5/12 (2006.01) F23C 7/00 (2006.01) F23C 9/00 (2006.01) F23D 11/40 (2006.01)
Patent
CA 2119727
The present invention is concerned with a method of operating an oil evaporation burner for heating boilers which, for NOX reduction, are operated with an exhaust gas return from the combustion chamber of the heating boiler into the burner. In oil evaporation burners of the afore-described type the exhaust gas return during the start-up phase presents certain difficulties inasuch as the burner frequently goes off during the start-up phase. To overcome such difficulties the flow of exhaust gas as returned during the start-up phase is pneumatically discontinued by the formation of blocking curtains from air as supplied.
La présente invention a trait à une méthode d'exploitation des brûleurs à évaporation de mazout destinés aux chaudières de chauffage qui, à des fins de réduction des émissions de NOx, sont utilisées avec un retour dans le brûleur des gaz de combustion provenant de la chambre de combustion de la chaudière de chauffage. Dans les brûleurs à évaporation de mazout du type décrit ci-dessus, le retour des gaz de combustion pendant la phase de mise en marche présente des difficultés dans le sens où le brûleur s'éteint souvent. Pour surmonter ces difficultés, l'écoulement des gaz de combustion retournés pendant la phase de mise en marche est interrompu de façon pneumatique à la suite de la formation de rideaux de blocage au moyen de l'air fourni.
Mcfadden Fincham
Viessman Werke Gmbh & Co.
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