Gas fired radiant tube heater

Patent · Tue Jul 06 04:00:00 EDT 1993

OSTI ID:6126580

Hemsath, K H

A radiant tube burner is described comprising: (a) burner means firing products of combustion into a generally cylindrical inner tube having a plurality of spaced apertures radially extending therethrough; (b) a concentric, closed end outer tube circumscribing said inner tube at a close radial distance to define a longitudinally-extending, small annular heat transfer passageway therebetween, said outer tube having a plurality of spaced openings radially extending therethrough; (c) a heat transfer tube having a closed end concentrically disposed about said inner tube and said outer tube for receiving heat from said outer tube and forming a second larger annulus between said heat transfer tube and said outer tube; (d) said apertures and said openings spaced with respect to each other such as to result in long axial distances between apertures in said inner tube and openings in said outer tube for any equidistant pattern of apertures and openings; and (e) said apertures, said openings and the radial distance between said heat transfer tube and said outer tube being spaced and sized so that said heat transfer tube is uniformly heated by the combined action of outer and inner tube when hot burner combustion products are forced to flow from said burner means through said inner and outer tubes, through said annular space between said inner and said outer tubes, and through said second annular space between said outer tube and said heat transfer tube before returning to an exhaust in said heat transfer tube.

• Assignee: Indugas, Inc., Toledo, OH (United States)
• Patent Number(s): US 5224542; A
• Application Number: PPN: US 7-817158
• OSTI ID: 6126580
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
034000 -- Natural Gas-- Combustion
42 ENGINEERING
421000* -- Engineering-- Combustion Systems
ANNULAR SPACE
BURNERS
CHEMICAL REACTIONS
COMBUSTION
CONFIGURATION
DESIGN
ENERGY TRANSFER
FUELS
GAS FUELS
HEAT TRANSFER
HEATERS
OPERATION
OXIDATION
RADIANT HEATERS
SPACE
THERMOCHEMICAL PROCESSES
TUBES