Secondary burner for sealed combustion chamber of a...

F - Mech Eng,Light,Heat,Weapons – 23 – D

Patent

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Details

F23D 23/00 (2006.01) F23D 14/14 (2006.01) F24H 9/18 (2006.01) F24H 9/20 (2006.01)

Patent

CA 2486441

A secondary burner is provided in a sealed combustion chamber of a gas-fired hot water heater. The hot water heater has a support base for supporting it elevated from a, floor surface. The sealed combustion chamber is supported over the base under an inner casing of the hot water heater which is adapted to contain water to be heated by a primary burner in the combustion chamber. An air inlet port is provided in the bottom wall of the combustion chamber to supply combustion air to the primary burner. The secondary gas burner perforated disc is secured entirely across the air inlet port and in direct unobstructed communication with the primary burner. The secondary gas burner perforated disc has holes throughout its inner surface whereby to ignite its an inner surface thereof in the presence of flammable vapors and air entering the gas burner perforated disc from an outer surface thereof. The support base has air inlet openings to permit ambient: air supply to the outer surface

L'invention concerne un brûleur secondaire fourni dans une chambre de combustion scellée d'un chauffe-eau au gaz. Le chauffe-eau est doté d'une base de soutien pour le maintenir au-dessus d'une surface de plancher. La chambre de combustion scellée est supportée sur la base sous une enveloppe intérieure du chauffe-eau qui est adapté pour contenir de l'eau à chauffer au moyen d'un brûleur principal dans la chambre de combustion. Un orifice d'admission d'air est fourni dans la paroi inférieure de la chambre de combustion pour alimenter l'air de combustion au brûleur principal. Le disque perforé du brûleur au gaz secondaire est fixé entièrement à travers l'orifice d'admission d'air et en communication directe non bloquée avec le brûleur principal. Le disque perforé du brûleur au gaz secondaire comprend des ouvertures dans sa surface intérieure par lesquelles enflammer sa surface intérieure en la présence de vapeurs inflammables et d'air entrant le disque perforé du brûleur au gaz d'une surface extérieure. La base de soutien est munie d'ouvertures d'entrée d'air pour permettre l'alimentation de l'air ambiant à la surface extérieure.

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