Boiler and low-NOx combustion method

To provide a boiler capable of realizing a reduction in O2, a reduction in NOx, and a reduction in CO. The present invention provides a boiler including: a premixed gas burner, and water tubes in close proximity to the premixed gas burner, characterized in that the premixed gas burner ejects a premi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TANAKA OSAMU, YOSHINARI YUJI, TOKUNAGA YUKIHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	AIR BLASTING BURNERS COMBUSTION APPARATUS COMBUSTION PROCESSES FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL HEATING LIGHTING MECHANICAL ENGINEERING METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN RANGES VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	To provide a boiler capable of realizing a reduction in O2, a reduction in NOx, and a reduction in CO. The present invention provides a boiler including: a premixed gas burner, and water tubes in close proximity to the premixed gas burner, characterized in that the premixed gas burner ejects a premixed gas toward the water tubes at a predetermined angle; and the boiler further includes a fuel supply portion capable of supplying at least one of a gas fuel and a premixed gas provided at a position on a downstream side of and spaced apart by a predetermined distance from the premixed gas burner.