F - Mech Eng,Light,Heat,Weapons – 23 – D
Patent
F - Mech Eng,Light,Heat,Weapons
23
D
F23D 14/46 (2006.01) F23D 14/70 (2006.01) F23D 14/82 (2006.01)
Patent
CA 2213284
A gas burner is provided for use on the inlet end of a fire tube, and includes a mixer having attached to it a gas delivery pipe, fuel gas and air being combined in the mixer to provide mixed gas and air. A venturi is secured at its inlet end to the mixer to receive the flow of gas and air, the venturi serving to draw air into the mixer. A burner nozzle is affixed to the venturi outlet end and the burner nozzle and extends within the fire tube. A perforated tube surrounds the mixer/venturi and at least a portion of the burner nozzle. A sound absorbing flame cell housing surrounds the perforated tube. A flame arrestor closes an air inlet opening in the flame cell housing air and serves to permit air to pass into the flame cell housing but prohibits the passage of flame therethrough so that flame is confined within the interior of the flame cell housing. A sound absorbing flame arrestor cover is supported exteriorly of the flame cell housing and adjacent the flame arrestor and configured to permit free passage of air into the flame cell housing through the flame arrestor but prohibiting straight line passage of sound through the flame arrestor from the interior to the exterior of the flame cell housing.
Cette invention concerne un brûleur à gaz disposé à l'entrée d'un tube de fumée et qui comporte un mélangeur alimenté par un tuyau d'amenée de gaz et qui réalise un mélange gaz combustible/air. Un venturi est fixé à l'entrée d'alimentation en gaz du mélangeur afin d'aspirer de l'air dans celui-ci. Un injecteur de combustible fixé à la sortie du venturi pénètre dans le tube de fumée. Un tube perforé entoure l'ensemble mélangeur/venturi et au moins une partie de l'injecteur. Un logement insonorisant de cellule de combustion entoure le tube perforé et un pare-flamme disposé dans l'admission d'air de ce logement sert à empêcher la flamme d'en sortir tout en autorisant l'entrée d'air. Un couvercle insonorisant de pare-flamme est monté sur l'extérieur du logement de cellule de combustion et à proximité du pare-flamme, et configuré pour laisser librement passer de l'air à travers le pare-flamme, mais empêcher le bruit de sortir en ligne directe à travers le pare-flamme.
Inman Merle B.
Sams Gary W.
National Tank Company
Smart & Biggar
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