Internal heat exchange tubes for industrial furnaces

Patent · Tue May 26 04:00:00 EDT 1992

OSTI ID:7047194

Hoetzl, M; Lingle, T M

This patent describes a method for cooling the work within an industrial furnace. It comprises providing a longitudinally extending outer tube which extends into the furnace having a closed axial end and an open axial end; providing a preformed inner tube open at both ends within the outer tube; injecting a coolant into the inner tube so that the coolant flows from one axial end of the tube out the opposite end adjacent the closed end of the outer tube, and from the closed end of the outer tube to the open end thereof; circulating a gas within the furnace against the outer tube to effect heat transfer therewith.

• Assignee: Surface Combustion, Inc., Maumee, OH (United States)
• Patent Number(s): US 5116221; A
• Application Number: PPN: US 7-694758
• OSTI ID: 7047194
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
421000 -- Engineering-- Combustion Systems
COOLING
DESIGN
ENERGY TRANSFER
FURNACES
HEAT EXCHANGERS
HEAT TRANSFER
TUBES