Combustion process and fuel injection burner for implementing such a process
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.
Claims20
A combustion process, comprising the steps of:
- using a burner having an injector with a fuel delivery tube having a tip with a cylindrical internal wall to form a liquid fuel into a hollow jet having the shape of the internal wall of the tip;
- combining the hollow jet of fuel with an injection fluid such that the hollow jet is broken up into heterogeneous liquid fuel particles;
- and
- combusting the fuel to produce a flame having a substantially uniform temperature along the length thereof.
A low NOx gas emission combustion process in a glass-making oven, comprising the steps of:
- using a burner having an injector with a fuel delivery tube having a tip with a cylindrical internal wall to form a liquid fuel into a hollow jet having the shape of the internal wall of the tip;
- combining the hollow jet of fuel with an injection fluid such that the hollow jet is broken up into heterogeneous liquid fuel particles;
- and
- combusting the fuel to produce a flame having a substantially uniform temperature along the length thereof.
Dependencies are inferred from the claim text.