Burner system having premixed burners and flame transfer means

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

Patent

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Details

F23D 14/04 (2006.01) F23Q 9/04 (2006.01)

Patent

CA 2687268

The invention relates to a burner system having a number of premixed burners (2), which each have one or more feed openings and outflow openings for a combustible gas/air mixture. The burner system is provided with means (11) for transferring a flame from one burner to another. By making use of such flame transfer means the burner system can be ignited at one of the burners, wherein the flame then overflows sufficiently -rapidly to the other burners in order to ignite them before a dangerously large quantity of the combustible gas/air mixture has flown out. These flame transfer means can define a flame path between the burners which can for ijistance be formed by an overflow pipe (12) mutually connecting the burners. The burner system can further be provided with a member (13) directed toward the flame path for the purpose of injecting the combustible gas/air mixture (M) therein. This injection member can be connected via a branch conduit (14) to a mixing chamber (5) in which the gas/air mixture is formed.

L'invention concerne un système de brûleur comportant plusieurs brûleurs prémélangés (2), chacun d'entre eux comprenant une ou plusieurs ouvertures d'amenée et de sortie pour un mélange combustible gaz/air. Le système de brûleur est doté d'un moyen (11) de transfert d'une flamme d'un brûleur à un autre. En utilisant ce moyen de transfert de flamme, le système de brûleur peut être allumé au niveau d'un des brûleurs, la flamme débordant alors suffisamment rapidement vers les autres brûleurs pour les allumer avant qu'une quantité dangereusement importante du mélange combustible gaz/air se soit échappée. Ce moyen de transfert de flamme peut définir un chemin de flamme entre les brûleurs qui peut être formé par exemple par un tube de trop-plein (12) reliant mutuellement les brûleurs. Le système de brûleur peut être de plus équipé d'un élément (13) dirigé vers le chemin de flamme à des fins d'injection du mélange combustible gaz/air (M) dans celui-ci. Cet élément d'injection peut être relié via un conduit de dérivation (14) à une chambre de mélange (5) dans laquelle est formé le mélange gaz/air.

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