Gas water heater and control method and system thereof
A technology for gas water heaters and control systems, applied in fluid heaters, lighting and heating equipment, etc., can solve problems such as changes, differences in gas calorific value, and increased costs such as manpower, material resources, and financial resources, so as to avoid flameout and improve versatility. , the effect of improving combustion efficiency
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[0035] The technical solution of the present invention will be further described in detail below in conjunction with the drawings and specific embodiments.
[0036] First, briefly explain the design starting point of the present invention:
[0037] Each gas water heater corresponds to a unique optimal combustion curve, which reflects the ratio between the combustion heat of gas and the air volume of the fan. If the water heater burns in accordance with the ratio of the combustion heat determined by the optimal combustion curve to the air volume of the fan, the gas efficiency is the highest, and the exhaust gas content of combustion is the least. The heat of gas combustion is related to the amount of gas and the calorific value of combustion. The amount of gas depends on the opening of the gas proportional valve, and the opening of the gas proportional valve is controlled by the PWM signal. Therefore, the prior art usually The optimal combustion curve is also regarded as the propor...
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