A kind of anti-flame control method of gas stove

Abstract

The invention relates to a flameout preventing control method for a gas stove. The method comprises the following steps: detecting and judging an adjusting signal of a fire power gear; judging whetherthe fire power gear is increased or not; judging whether the fire power gear is adjusted across a fire power section or not based on the increased fire power gear; if so, adjusting the opening of a proportional valve to a theoretical flameout preventing opening KMY corresponding to the Mth grade fire power section and keeping the opening for B seconds to pass fire effectively; and then adjustingthe opening of the proportional valve to a standard opening KMA of the proportional valve corresponding to a fire power gear DMA. When the flameout preventing control method for the gas stove is usedfor adjusting the fire power gear, if the fire power gear is adjusted across the fire power section, the opening of the proportional valve is adjusted to the flameout preventing opening as the gas flow of an originally opened gas branch is not reduced, so that the gas stove is free of flameout condition, and therefore, fire is passed effectively and the fire passing success rate is improved. Meanwhile, in the adjusting process, the flame uniformity and stability can be guaranteed effectively.

Description

technical field [0001] The invention relates to the technical field of gas stoves, in particular to a flameout prevention control method for a gas stove. Background technique [0002] The gas stove controls the combustion power by adjusting the opening of the valve body. To meet the full power adjustment from small power to high power, usually at least two combustion chambers need to be used in conjunction with each other. Such as figure 1 As shown, the gas outlet slots of the combustion chamber 1 and the combustion chamber 2 are connected through the fire transmission groove 3, and the ignition needle 4 is located next to the gas outlet slot of the combustion chamber 1, and different combustion powers of the gas stove can be realized by adjusting the gas flow. [0003] The success rate of power continuous fire transfer between different combustion chambers is low, and the failure of fire transfer often leads to flameout failure. Usually, structural design optimization suc...

AI Technical Summary

Problems solved by technology

Moreover, after switching to the dual-channel mode, it takes a certain amount of time for the gas to diffuse. Before the gas in the combustion chamber 2 is ignited, because the gas flow in the combustion chamber 1 is small, it cannot maintain the combustion of the flame, which will cause accidental flameout.

[0005] The Chinese invention patent application with the publication number CN107339807A (application number 201710059590.9) "A Combustion Control Method for Gas Water Heaters", in which the disclosed combustion control method proposes a fire transmission method in the state of an impermanent open flame. On the basis of improvement, the success rate of fire transmission is improved, but this method cannot solve the problem of fire transmission failure caused by the sharp decrease of gas flow during the switching process of the combustion channel when the gas stove is in the state of constant fire

In addition, because the firepower is adjusted across sections, the gas flow in the combustion chamber fluctuates greatly, and the flame uniformity during the firepower adjustment process is poor

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