Control method of active air-inlet gas stove

Abstract

The invention relates to a control method of an active air inlet gas stove. The active air inlet gas stove comprises a burner (10), a fan (2) and a gas pipe (9), a controller (101) and a proportional valve (8) controlled by the controller (101), and the active air inlet gas stove is characterized in that the controller (101) is provided with or connected with an operation part (102); the controller (101) is internally provided with a default form for the corresponding opening degrees of the proportional valve (8) and the corresponding rotating speeds of the fan (2) under different firepower grade conditions, when the external operation part (102) can input the required firepower grade, the controller (101) inquires the default form, and control signals are respectively output according to an inquiring result to the proportional valve (8) and the fan (2); the proportional valve (8) is controlled to enable the opening degrees of the proportional valve (8) to correspond to the firepower grades, and the fan (2) is controlled to enable the rotating speeds of the fan (2) to correspond to the firepower grades. The control method provided by the invention has the advantage that the gas can be fully burnt regardless of firepower grades of the gas stove.

Description

technical field [0001] The invention relates to a control method of an active air intake type gas stove. Background technique [0002] Most of the existing household gas stoves adopt the structure of natural injection of primary air and natural mixing of gas and air. This structure is difficult to control the mixing ratio and uniformity of gas and air, which ultimately affects the combustion efficiency of the gas stove. [0003] There is also a structure that uses a fan to directly blow air to the burner. When the gas flow is adjusted, the primary air volume does not increase or decrease in proportion to the gas volume, resulting in insufficient or excess air volume, resulting in incomplete combustion when there is insufficient air volume. More CO is generated, or there is a large amount of excess air in the flue gas after combustion, which takes away heat energy, which also reduces the thermal efficiency of the gas stove. [0004] For overcoming above-mentioned these defec...

AI Technical Summary

Problems solved by technology

[0006] Because in the prior art, when controlling the mixing ratio of gas and air, only the primary air supply is controlled, and the supplementary air is not compared with the effective control of the secondary air supply. Whether the combustion of gas is sufficient or not, the supply of primary air There is an extremely important relationship between the air intake and the supplementary air intake of the secondary air. If one of them is ignored, the combustion efficiency will not be able to reach its optimum state.

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