Vented recycling oven with separate catalytic converter

Details Vented recycling oven with separate catalytic converter Vented recycling oven with separate catalytic converter

F - Mech Eng,Light,Heat,Weapons

24

C

F24C 15/32 (2006.01) H05B 6/80 (2006.01)

Patent

CA 2388556

A recycling cooking oven (10) for cooking food at least in part by hot air flow and providing a substantially closed but vented environment includes a cooking chamber (22). A blower (24) circulates a stream of hot air in substantially a continuous travel path. A main catalytic converter (50) is disposed in the continuous travel path for flamelessly oxidizing the oxidizable components leaving the cooking chamber. A vent (60) communicating with ambient atmosphere and the main catalytic convener (50) has an auxiliary catalytic converter (62) disposed therein, downstream of the main catalytic converter (50), for flamelessly oxidizing oxidizable components in the hot air of the auxiliary vent stream passing through the vent (60), thereby to further remove oxidizable components from the hot air of the auxiliary vent stream and so release a relatively clean auxiliary vent stream of hot air from the vent (60) into the ambient atmosphere. Image

L'invention concerne un four (10) de cuisson à recirculation destiné à cuire des aliments au moins partiellement à l'aide d'un flux d'air chaud et à constituer un environnement sensiblement fermé mais ventilé, lequel four comprend une chambre (22) de cuisson. Un ventilateur (24) provoque la circulation d'un flux d'air chaud suivant un trajet sensiblement continu. Un convertisseur catalytique (50) principal est placé sur le trajet continu pour oxyder sans flamme les composants oxydables sortant de la chambre de cuisson. Un évent (60) communiquant avec l'atmosphère ambiante et le convertisseur catalytique (50) principal renferme un convertisseur catalytique (62) auxiliaire, en aval du convertisseur catalytique (50) principal, destiné à l'oxydation sans flamme des composants oxydables présents dans l'air chaud du flux de l'évent auxiliaire passant par l'évent (60), ce qui permet à la fois d'éliminer davantage de composants oxydables de l'air chaud du flux de l'évent auxiliaire et de libérer ainsi un flux d'air chaud de l'évent auxiliaire relativement propre entre l'évent (60) et l'atmosphère ambiante.

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