Domestic gas stove burner having tempering control function

Abstract

A household gas cooker burner with tempering control function, the gas burner injection pipe (2) is exposed outside the throat pipe or diffusion pipe (6) of the furnace cavity (1), or is placed at the outlet of the injection pipe There is a temperature sensor (5) on the outer side of the furnace cavity (1) at the end, and it is closely connected to conduct heat directly. The temperature sensor (5) is closely connected with the pulse ignition controller (4). The reason is that when the tempering occurs, the temperature sensor will detect the tempering of the burner due to the obvious rise in its temperature, and transmit the tempering signal to the pulse ignition controller, and the pulse ignition controller will obtain the tempering of the gas burner. The tempering signal is to issue an instruction to close the gas control solenoid valve and cut off the gas supply, so as to achieve the purpose of safety and accidental flameout protection. It has the obvious advantages of anti-tempering and safe use.

Description

Technical field [0001] The invention relates to the improvement of the burner system of the household gas range, especially the improvement of the safety protection of the burner of the household gas range. Background technique [0002] With the progress of society and the widespread use of energy, household gas cookers have been popularized to thousands of households. People have higher and higher requirements for the use of household gas cookers and product safety requirements, and people have higher and higher requirements for product safety performance. higher. Household gas cooker is a product with high safety requirements. A large amount of gas leakage and abnormal combustion will cause the loss of the product itself and family property. In severe cases, it will endanger people's safety. It is a topic worthy of people's great attention. For example, when a domestic gas cooker backfires due to various reasons, if the gas valve cannot be closed in time or the gas supply...

AI Technical Summary

Problems solved by technology

[0003] (1) For the cooker products that adopt the ion detection type accidental flameout protection device as safety protection, the combustion status detected is only the flame status of the inner ring fire, and cannot detect the flame status of the outer ring fire at the same time. When the outer ring fire occurs When tempering, the burner will be burned because the tempering of the outer ring fire cannot be detected, and accidents may occur in severe cases

[0004] (2) For the cooker products that use the ion detection type accidental flameout protection device as safety protection, since the flame detection is the flame signal on the flame hole of the burner, when the burner flashes back, even the inner ring of the double-ring fire burner If the fire flashes back, the detection sensor needle is installed to detect the flame condition of the inner ring fire, but because the flame still exists on the ejection tube, cavity and fire path of the burner, the accidental flameout protection device can still detect the combustion flame, It will still be regarded as a normal combustion flame, and the pulse ignition controller will still maintain the normal open valve gas supply, and cannot judge the abnormal combustion of the tempering situation, and cut off the gas supply; the safety protection function of the tempering cannot be achieved

[0005] (3) The cooker products that use thermoelectric type accidental flameout protection device as safety protection, because there is no electronic control system, it carries out safety protection control by sensing temperature difference, no matter whether it is the outer ring fire backfire or the inner ring fire backfire, The temperature is still sensed on the thermocouple sensor head, and it will still be regarded as normal combustion, and the situation of the burner backfire cannot be detected, let alone the control of cutting off the gas source when the cooker burner backfires.

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