Fuel injection burner
AssigneeSaint-Gobain Glass France
InventorsGuy Tackels, Patrick Rouchy, Joseph Vernaz
Life of this patent
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Abstract
In a combustion process, especially one used for melting glass, the delivery of fuel is ensured by an apparatus having at least one burner (5) which is equipped with at least one injector (1) that includes a liquid fuel delivery tube (2) which has at least one internal wall (25) and an injected fluid delivery tube (3) arranged concentrically with respect to the liquid fuel delivery tube. Immediately before injecting the liquid fuel from its delivery tube, one puts it in the shape of a hollow jet basically assuming the shape of the internal wall. This has application for the reduction of NOx in a glass-making oven.
Claims13
A burner equipped with at least one injector comprising:
- a liquid fuel delivery tube terminating in a downstream nozzle which has a swirling chamber of truncated cone shape extended by a cylindrical tip having an internal wall;
- a atomizing fluid delivery tube arranged concentrically with respect to said liquid fuel delivery tube;
- at least one atomizing element cooperating with said liquid fuel delivery tube and configured for forming the liquid fuel as a hollow jet which substantially assumes the shape of said internal wall, immediately before the liquid fuel is injected from said liquid fuel delivery tube;
- and
- a unit perforated by an opening, the unit being secured to said atomizing fluid delivery tube, said cylindrical tip being inserted in said opening such that the tip of the nozzle terminates in a plane including the downstream end of said unit.
Dependencies are inferred from the claim text.