Gas stove dry burning automatic flame extinguishing device

Abstract

The invention relates to an automatic flame failure device for dry burning of a gas stove. The automatic flame failure device is characterized by comprising a control system and an execution system, wherein the control system comprises a temperature sensor (1) and a relay (12); the temperature sensor (1) detects the temperature of the lower middle position of a pan in real time and controls a switch of the relay (12); the execution system comprises a water tank (4), a servo motor (13), a pump body (14), a water pumping pipe (15), a water discharge pipe (20) and a universal pipe (2); and the universal pipe (2) is aligned to a thermocouple sensor of the gas stove. According to the automatic flame failure device, the control system receives a dry burning temperature signal fed back by the thermocouple sensor (1) and controls the relay (12) to be closed, and the servo motor (13) drives the pump body (14) to pump water from the water tank (4) through the water pumping pipe (15), discharge the water through the water discharge pipe (20) and spray the water to an induction point of the thermocouple sensor of the gas stove through the universal pipe (2) so as to reduce the temperature of the induction point, so that a gas inlet valve of the gas stove is closed, gas is stopped from being supplied so as to be shut off, the continuous generation of dry burning is prevented, and a fire disaster is prevented.

Description

technical field [0001] The invention relates to an automatic flame-out device for dry burning of a gas stove, belonging to the technical field of gas stoves. Background technique [0002] According to market research, most households currently use gas stoves with a flameout protection device. The basic principle is: when external factors such as liquid overflow, side wind, etc. The temperature of the needle drops, and the signal temperature for combustion cannot be reached, and the controller will automatically cut off the maintenance current to the safety valve because the combustion signal cannot be obtained, causing the safety valve to close, thereby cutting off the gas supply of the gas pipeline, avoiding the occurrence of Gas leakage prevents fire and gas poisoning. At present, the most advanced is the ion induction gas stove, but it only significantly improves the time for the entire accidental flameout and gas cut-off, and cannot solve the accident caused by the oper...

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Problems solved by technology

[0003] Although the existing gas flameout protection device has been improved, it can realize the interruption of gas supply when the temperature drops, prevent gas leakage and poisoning, etc., but there are still the following problems: when the operator leaves for too long to dry burn, the existing gas stove Unable to automatically cut off the gas and turn off the fire, it is impossible to avoid fire accidents caused by dry burning, which will cause heavy losses to family property

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