초록 ▼

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 vent

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.

대표청구항 ▼

[ What is claimed:] [1.] A gas burner system providing reduced noise levels comprising:a mixer having attached thereto a gas delivery pipe, fuel gas and air being combined in the mixer to provide mixed gas and air;a burner nozzle in communication with said mixer through which said mixed gas and air

[ What is claimed:] [1.] A gas burner system providing reduced noise levels comprising:a mixer having attached thereto a gas delivery pipe, fuel gas and air being combined in the mixer to provide mixed gas and air;a burner nozzle in communication with said mixer through which said mixed gas and air is passed;a sound absorbing flame cell housing having an exterior and providing an interior surrounding said mixer, having an outlet opening through which said mixed pas and air is passed and an air inlet opening;a perforated tube positioned within said flame cell housing and receiving said mixer and dimensioned to provide an annular area exterior of the perforated tube within said flame cell housing; anda flame arrestor closing said flame cell housing air inlet opening permitting air to pass into said flame cell housing and prohibiting the passage of flame therethrough, air flowing through said flame arrestor into said annular area and through said perforated tube to said mixer.