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Boiler and method for controlling air and fuel ratio using air pressure sensor

A technology of air pressure sensor and air-fuel ratio, which is applied in the direction of combustion method, combustion control, combustion ventilation, etc., and can solve problems such as product reliability reduction

Inactive Publication Date: 2008-04-23
(株)庆东ONE
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Moreover, the reliability of the product is reduced

Method used

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  • Boiler and method for controlling air and fuel ratio using air pressure sensor
  • Boiler and method for controlling air and fuel ratio using air pressure sensor
  • Boiler and method for controlling air and fuel ratio using air pressure sensor

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Embodiment Construction

[0024] Exemplary embodiments of the present invention are described in detail below.

[0025] FIG. 4 illustrates a schematic structure of an air-fuel ratio control boiler using an air pressure sensor according to the present invention. 5 is a flow chart illustrating a method of controlling an air-fuel ratio of a boiler using an air pressure sensor according to the present invention; FIG. 6 is a voltage-pressure diagram for explaining air-fuel ratio control according to the present invention.

[0026] As shown in FIG. 4 , an air-fuel ratio control boiler using an air pressure sensor according to the present invention includes a fan 110 that sucks air for combustion and is provided with a venturi on the air passage to generate a differential pressure; an air pressure sensor 120 that Connect with the venturi tube of fan 110 and use the differential pressure produced at the venturi tube to measure the air pressure; the air pressure sensor voltage measuring device 130, which measur...

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Abstract

The invention discloses an air-fuel ratio control boiler using an air pressure sensor and a method for controlling the air-fuel ratio thereof. The boiler includes a fan, an air pressure sensor, an air pressure sensor voltage measuring device, an air pressure sensor voltage compensation device, and a controller, and compensates in advance the component performance of the air pressure sensor, the noise factor caused by the deviation (error) of the composition, so that it Matches the initial reference voltage before running the fan to maximize the efficiency of the air-to-fuel ratio. In addition, the boiler makes it possible not only to exert the best fuel efficiency effect due to the maximization of combustion efficiency, but also to minimize the emission of harmful gases, thereby preventing environmental pollution in advance, and thus improving product reliability sex.

Description

technical field [0001] The present invention relates to an air-fuel ratio control boiler using an air pressure sensor and a method for controlling its air-fuel ratio, more particularly to an air-fuel ratio control boiler using an air pressure sensor and a method for controlling its air-fuel ratio , can achieve the best combustion efficiency and precise air-fuel ratio control to improve the fuel efficiency of the boiler, and greatly increase the effectiveness to improve the reliability of the product. Background technique [0002] Generally, a boiler is a device for mixing and burning air and fuel. In these boilers, the combustion efficiency depends on how precisely the air and fuel mixing ratio is controlled. [0003] In boilers, an air proportional control system or a current proportional control system is used to control the air-fuel ratio. A precise amount of fuel is supplied in proportion to the pressure of the air introduced by controlling the rpm of the fan through s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24H9/20
CPCF23N2025/06F23N2033/08F23N3/082F23N2225/06F23N2233/08F23N5/18F23N2005/181F24H1/22F24H9/2035
Inventor 金时焕
Owner (株)庆东ONE
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