Automatic alarming method for domestic gas water heater

Abstract

The invention relates to an automatic alarm method of a domestic gas water heater. The method includes: a controller, a gas detector, a carbon monoxide concentration detection device and an infrared human body detection sensor are attached onto a main device of the domestic gas water heater, the controller is connected with the gas detector, the carbon monoxide concentration detection device and the infrared human body detection sensor and judges whether to perform gas alarm or not according to detection results of the gas detector, the carbon monoxide concentration detection device and the infrared human body detection sensor, and the main device comprises a shell, a burner, a water inlet pipe, a water outlet pipe, a draught flue and a heat exchanger. By the method, insufficiency of gas burning and gas concentration in indoor gas can be detected, gas alarm information is transmitted to residents timely to facilitate measure taking of the residents, potential safety hazards of gas explosion and carbon monoxide poisoning can be avoided, personal and property safety of people is guaranteed.

Description

[0001] The present invention is a divisional application of a patent whose application number is 2013101313780, the application date is April 17, 2013, and the invention name is "automatic alarm method for household gas water heater". technical field [0002] The present invention relates to an automatic alarm method for a household gas water heater, in particular to an automatic alarm method for a household gas water heater that can be used indoors to determine whether to issue an alarm according to the gas leakage situation. When not in the room, it can automatically analyze the incomplete combustion of gas and the concentration of indoor gas, and actively seek solutions to ensure the safety of property and personal safety. Background technique [0003] The basic working principle of the gas water heater is that cold water enters the water heater, flows through the water-gas linkage valve body, under the action of a certain pressure difference of the flowing water, pushes t...

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Problems solved by technology

[0004] However, the combustion chamber of the existing gas water heater is usually not sealed. The water heater is used indoors. The oxygen required for the combustion of the water heater is also taken from the room, and the waste gas generated by the combustion is discharged to the outside through the flue, so the water heater cannot be installed in the bathroom. At the same time, due to the natural air intake during combustion, the incomplete mixing of gas and air affects the thermal efficiency. Incomplete combustion will also produce carbon monoxide, which will cause poisoning of indoor residents, or gas leakage will mix with oxygen, which will easily cause an explosion, which will cause personal injury and harm. Property security poses hidden dangers

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