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Method for controlling stability of air-fuel ratio of gas cooker

A stable control method, gas stove technology, applied in the direction of combustion method, gas fuel burner, burner, etc., can solve the problem that the air-fuel ratio cannot be optimized, and achieve huge social and economic benefits

Inactive Publication Date: 2012-03-21
NORTH CHINA MUNICIPAL ENG DESIGN & RES INST
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  • Application Information

AI Technical Summary

Problems solved by technology

The patent chooses to directly use the pressure of the air supply pipe as the source signal, and maintain a constant air pipe pressure mode to drive the adjustment of the fan speed, which cannot achieve the technical goal of optimizing the air-fuel ratio, and there are serious technical defects in the control model and technical route

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  • Method for controlling stability of air-fuel ratio of gas cooker
  • Method for controlling stability of air-fuel ratio of gas cooker
  • Method for controlling stability of air-fuel ratio of gas cooker

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Embodiment Construction

[0016] A method for stabilizing the air-fuel ratio of a gas stove. The gas pressure signal between the valve of the gas stove and the gas nozzle is collected as the pressure control source signal to control the air supply or fan sent to the gas stove by a micro fan that provides combustion air for gas combustion The number of revolutions changes with the gas pressure to maintain the stability of the gas stove air-fuel ratio. The change control model of the air supply volume of the micro-fan is to establish the proportional function adjustment relationship between the air volume and the gas pressure, and always maintain the stability of the air-fuel ratio.

[0017] Such as figure 1 It is shown that the above-mentioned pressure control source signal is collected by a pressure signal sensor and an air-fuel ratio controller 4 integrated between the gas stove nozzle 1 and the gas valve 2. The gas nozzle 1 inlet pipe or the gas valve 2 outlet pipe is processed with a pressure-taking ho...

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Abstract

The invention provides a method and an apparatus for controlling the stability of the air-fuel ratio of a gas cooker. The apparatus is characterized in that: a fuel pressure signal sensor, an air-fuel ratio control performer, and a miniature fan providing combustion air to fuel combustion are arranged between a fuel valve and a nozzle. The action principle of the apparatus is characterized in that: the fuel pressure between the valve and the fuel nozzle of the gas cooler is a control source signal to adjust the air supply volume of the miniature fan which provides the combustion air to a combustor of the gas cooker; the control mode of the air supply volume change of the miniature fan is a model which adjusts the air supply volume of the fan or the revolution number of the fan with the change of the fuel pressure and treats the maintenance of the relative stability of the air-fuel ratio as the adjustment object; and a novel air-fuel ratio controller for the gas cooker and the gas cooker are formed according to the method of the invention.

Description

Technical field: [0001] The invention belongs to the field of design and manufacture of urban gas stoves, and relates to a method for stabilizing the air-fuel ratio of a gas stove used in a gas stove. The control method uses a gas pressure signal as the source signal to control the change of the air volume of the micro-fan to the combustor. The method requires the gas stove to include a gas pressure sensing element, and the pressure signal is taken between the gas stove valve and the gas nozzle. Background technique: [0002] Urban gas stoves are indispensable application combustion equipment in the utilization of urban gas. my country has hundreds of millions of gas stoves. There are more than 1,000 product manufacturers that have obtained national production licenses, and the annual output of stoves exceeds 25 million. The gas consumed on stoves reaches tens of billions of cubic meters each year. Although gas stoves have a history of more than 100 years in our country, with th...

Claims

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Application Information

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IPC IPC(8): F24C3/12F23D14/60
Inventor 赵自军
Owner NORTH CHINA MUNICIPAL ENG DESIGN & RES INST
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