Heating – With means diluting – purifying or burning exhaust gases
Patent
1976-10-01
1978-07-04
Camby, John J.
Heating
With means diluting, purifying or burning exhaust gases
431115, 432223, F23J 1500
Patent
active
040985679
ABSTRACT:
A recirculating processing oven heater including a direct fired burner for heating processing gas and a catalytic converter downstream from the burner for removing unburned combustible gas and providing additional heating prior to delivery of the processing gas to an associated processing oven. A housing of the heater defines first and second parallel paths along which the gas flows between an inlet and an outlet thereof and the burner and catalytic converter are located along the first path to heat gas flowing therealong while mixing of the gas downstream therefrom at a junction of the two paths provides heating of the gas that flows along the second path. The relative mass flow rates of gas flowing along the first and second paths is adjustable by a control valve mechanism including first and second adjustable valves at the inlet of the heater housing. Inner and outer housing portions of the heater housing have hollow elongated shapes with round cross sections and are arranged in a coaxial relationship such that the inner housing portion defines the first gas flow path and the space between the inner and outer housing portions defines the second gas flow path. An upstream end of the inner housing portion receives the burner while a downstream end thereof mounts a conical mixing member for causing mixing of the gas from the two paths.
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Camby John J.
Gladd Industries, Inc.
Yuen Henry C.
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