F - Mech Eng,Light,Heat,Weapons – 24 – H
Patent
F - Mech Eng,Light,Heat,Weapons
24
H
F24H 3/00 (2006.01) F23C 3/00 (2006.01) F23D 14/66 (2006.01) F23L 15/04 (2006.01)
Patent
CA 2389782
The invention relates to a radiant device with a burner of the "glove finger" type, comprising an exchanger (3) for heating air (T1) by the burned gases (T2), a furnace tube (6) drilled with air- intake orifices (60) and terminated by a nozzle (61) disposed facing a recirculation tube (4), and a central gas-injection tube (7). According to the invention, the central injection tube (7) is fed with gaseous fluids in proportions that can be regulated by means of one or two valves (710, 720), via two conduits (71, 72), the first (71) of which transports at least gas and the second (72) of which transports at least air, and the central injection tube (7) ends at a burner (8), which is disposed in the furnace tube (6) and which discharges at the level of the nozzle (61), this arrangement making it possible to adapt existing devices very easily for the purpose of reduced production of nitrogen oxides.
L'invention concerne un dispositif radiant à brûleur du type "en doigt de gant", comprenant un échangeur (3) permettant le réchauffage d'air (T1) par les gaz brûlés (T2), un tube foyer (6) percé d'orifices d'admission d'air (60) et terminé par une buse (61) disposée en regard d'un tube de recirculation (4), et un tube central d'injection (7) de gaz. Selon l'invention, le tube central d'injection (7) est alimenté en fluides gazeux, dans des proportions réglables au moyen d'une ou deux valves (710, 720), au moyen de deux conduits (71, 72) dont le premier (71) transporte au moins du gaz et dont le second (72) transporte au moins de l'air, et le tube central d'injection (7) aboutit à un brûleur (8) qui est disposé dans le tube foyer (6) et qui débouche au niveau de la buse (61), cet agencement permettant d'adapter très aisément des dispositifs existants en vue d'une production réduite d'oxydes d'azote.
Bellin-Croyat Thierry
Landais Thierry
Gaz de France
Gdf Suez
Mcfadden Fincham
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