CONTROL METHOD FOR HYDROGEN-FUELED DOMESTIC GAS WATER HEATER

Disclosed is a control method for a hydrogen-fueled domestic gas water heater. A staged combustion technology and a fully premixed combustion technology are combined in the method, a controller judges a combustion mode according to inlet water flow and set hot water input temperature, staged combust...

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Bibliographische Detailangaben
Hauptverfasser:	MIAO, Qingwei, YAN, Rongsong, WANG, Yan, YANG, Lin, ZHOU, Weiye, HU, Yingjie, GAO, Wenxue
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL HEATING LIGHTING MECHANICAL ENGINEERING RANGES VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	Disclosed is a control method for a hydrogen-fueled domestic gas water heater. A staged combustion technology and a fully premixed combustion technology are combined in the method, a controller judges a combustion mode according to inlet water flow and set hot water input temperature, staged combustion of the hydrogen on a combustor is achieved due to the arrangement of two electromagnetic valves and the staged combustor, and meanwhile the stable combustion of the hydrogen can be achieved by adjusting a rotating speed of a fan and magnitude of currents of a gas proportional valve; and an oxygen sensor is arranged on a exhaust pipe, and the controller judges whether actual hydrogen combustion reaches an optimal state by monitoring outlet water temperature and oxygen concentration in flue gas and performs adjustment.