Combustion heater

Details Combustion heater Combustion heater

F - Mech Eng,Light,Heat,Weapons

23

C

F23C 3/00 (2006.01) F23D 14/12 (2006.01)

Patent

CA 2713306

The combustion heater (1) includes an inner tube (20) having a supply passage (21) for combustion gas (G) in an inner portion, and an outer tube (10) disposed to provide a separated combustion space (30) in an outer periphery of the inner tube. A hole part (24) for ejecting the combustion gas being formed on a tube wall of the inner tube and a radiation promoting surface (20B) is disposed on an outer periphery of the inner tube. This structure suppresses excess temperature increase in the inner tube and improves heating efficiency in the combustion heater.

L'invention concerne un réchauffeur à combustion (1) qui comprend un tube interne (20) doté d'un passage d'alimentation (21) destiné à un gaz de combustion (G) et un tube externe (10) entourant la périphérie externe du tube interne d'un espace de combustion (30) placé entre les deux. Une partie trou (24) destinée à éjecter le gaz de combustion est formée dans la paroi du tube interne. Une surface favorisant le rayonnement (20B) est formée sur la périphérie externe du tube interne. Cette structure permet d'éliminer le chauffage excessif du tube interne et d'augmenter le rendement de chauffage du réchauffeur à combustion.

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