Gaz De France-(gdf) Service National

Gaz De France

Thierry Landais

Thierry Bellin-Croyat

The invention relates to a radiant device with a burner of the &ldquo;glove finger&rdquo; type, comprising an exchanger ( ) for heating air (T ) by the burned gases (T ), a furnace tube ( ) drilled with air-intake orifices ( ) and terminated by a nozzle ( ) disposed facing a recirculation tube ( ), and a central gas-injection tube ( ). According to the invention, the central injection tube ( ) is fed with gaseous fluids in proportions that can be regulated by means of one or two valves ( ), via two conduits ( ), the first ( ) of which transports at least gas and the second ( ) of which transports at least air, and the central injection tube ( ) ends at a burner ( ), which is disposed in the furnace tube ( ) and which discharges at the level of the nozzle ( ), this arrangement making it possible to adapt existing devices very easily for the purpose of reduced production of nitrogen oxides.

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Paris, France

Thierry Landais