Furnace with radiant burndown tube

Patent · Tue Jul 29 04:00:00 EDT 1980

OSTI ID:6874789

Thekdi, A C; Hemsath, K H; Conybear, J G; Vereecke, F J; Verhoff, S H

Past attempts to capture the heat energy of combustible gases in the furnace chamber involved drastic structural changes in the furnace design; however, the incorporation of a radiant burndown tube that uses the combustible exhaust gas to provide additional heat to the furnace requires neither major structural modifications nor a cumbersome venting system. The tube has three functional ares - the burner leg, the exhaust leg, and a tube portion located within the furnace chamber. The combustible gas passes through an inlet into the tube, where it is mixed with air and ignited; the combustion products exit via the exhaust leg. A typcial application for this radiant burndown tube is in a carburizing furnace; the endothermic gas that is normally burned off could supply over 250,000 Btu/hr.

• Assignee: Midland-Ross Corp.
• Patent Number(s): US 4214869
• OSTI ID: 6874789
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
034000 -- Natural Gas-- Combustion
42 ENGINEERING
421000* -- Engineering-- Combustion Systems
COMBUSTION CHAMBERS
DESIGN
FURNACES
GAS FURNACES
TUBES