SYSTEM AND METHOD FOR AVOIDING HARMONIC MODES OF GAS BURNERS

A gas burner system (12) has a gas burner with a conduit (16) through which an air-gas mixture is conducted; a variable-speed forced-air device (40) that forces air through the conduit (16); a control valve (44) that controls a supply of gas for mixture with the air to thereby form the air-gas mixtu...

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Bibliographische Detailangaben
Hauptverfasser:	Black, Stuart C, Eadie, Philip
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AIR AIR SUPPLY BLASTING BURNERS CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FORCOMBUSTION CHAMBERS, e.g. FIREBRIDGES COMBUSTION APPARATUS COMBUSTION PROCESSES DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDEDFOR DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS INCOMBUSTION CHAMBERS DRAUGHT-INDUCING FLUES FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL HEATING LIGHTING MECHANICAL ENGINEERING METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN RANGES REGULATING OR CONTROLLING COMBUSTION REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTIONAPPARATUS SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	A gas burner system (12) has a gas burner with a conduit (16) through which an air-gas mixture is conducted; a variable-speed forced-air device (40) that forces air through the conduit (16); a control valve (44) that controls a supply of gas for mixture with the air to thereby form the air-gas mixture; and an electrode (30) configured to ignite the air-gas mixture so as to produce a flame (29). The electrode is further configured to measure a flame ionization current associated with the flame (29). A controller (50) is configured to actively control the variable-speed forced-air device based on the flame ionization current measured by the electrode (30) so as to automatically avoid a flame harmonic mode of the gas burner (10). Corresponding methods are provided.