Combustion heating control device and method used for gas water heater

Abstract

The invention discloses a combustion heating control device and method used for a gas water heater. The combustion heating control device comprises a water inlet pipe, a heat exchanger, a water outlet pipe, a heater and a control module. An air inlet pipe, a gas pipe and an exhaust pipe are arranged on a shell of the heater. An isolating and mixing bin and a combustion bin are arranged in the shell. A water inlet flow sensor and a water inlet temperature sensor are arranged on the water inlet pipe. A water outlet temperature sensor is arranged on the water outlet pipe. A vortex draught fan, an air proportional valve and an air flow sensor are arranged on the air inlet pipe. A gas proportion valve is arranged on the gas pipe. A tail gas temperature sensor and an air pressure sensor are arranged on the exhaust pipe. An igniter and an oxygen sensor are arranged in the combustion bin. The control module is connected with all the sensors, the vortex draught fan, the air proportion valve, the gas proportion valve and the igniter. An energy-saving control method of the combustion heating control device is included. The combustion heating control device has the advantages of being sufficient in gas combustion, low in manufacturing cost, concentrated in heat, and capable of saving gas, reducing carbon dioxide emission and reducing carbon monoxide poisoning.

Description

technical field [0001] The invention relates to the field of water heaters, in particular to a combustion heating control device and a combustion heating control method for gas water heaters. Background technique [0002] Existing water heaters are all open-type combustion, the burner is fire row type combustion, there is no proportional control after the gas valve is opened, and the outlet water temperature is mainly realized by the following 3 methods or a combination of these 3 methods: 1. Through the summer , The winter season logo reminds customers to control the fire row number of the burner fire row to control the fire intensity to control the outlet water temperature. 2. Control the temperature of the outlet water through the size of the water flow. 3. Adjust the firepower intensity. However, in actual use, when the water heater is turned on, sometimes there will be a difference between blue fire, yellow fire, and red fire, and the firepower intensity is also diffe...

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Problems solved by technology

However, in actual use, when the water heater is turned on, sometimes there will be a difference between blue fire, yellow fire, and red fire, and the firepower intensity is also different, which is related to whether the gas is fully combusted with oxygen or the meaning of oxygen; Exhaust combustion water heater consumes a lot of gas, and the cost of fire exhaust is high

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