Burners, a recirculation of fumes and a low emission of nitrogen oxides and heat insulation gas containing such burners

摘要

The present invention relates to improvements made to the industrial burners with liquid fuel or gazeux.le technical sector of the invention is the field of manufacture of burners industriels.selon the invention, a burner (1) with a gaseous fuel has a central duct (10) of the transport of fuel, a central conduit (2) for transporting air surrounding said central duct of fuel and a plurality of peripheral conduits (13) of the transport of gaseous fuel, the said peripheral conduits extend at least in part to the outside of the central duct for conveying air, the burner also has a rectilinear section of the duct (22) of flow of flue gases which is disposed in the extension of each nozzle (14) on the peripheral pipes (13), and the ducts (22) of the suction of gases are fixed to the burner, to the outside of the conduit (2) of the transport of air, by a link (101) favouring their cooling.