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Adjusting device for air-fuel ratio of combustor

A technology of air-fuel ratio and adjustment device, which is applied in the direction of combustion method, combustion control, and fuel supply adjustment, which can solve problems such as low accuracy, high equipment cost, and slow burner load adjustment speed, and achieve air-fuel distribution Effects faster than stabilization, regulation and response speed

Pending Publication Date: 2021-11-16
YUEYANG YUANDA HEAT ENERGY EQUIP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adjust the flow rate of air and gas by adjusting the air regulating valve and the gas regulating valve respectively, so as to realize the adjustment of the air-fuel ratio of the burner, and the equipment cost is high; and the flow meter has a lower limit of measurement, and the small flow rate cannot be measured, and there is a low power of the burner The air-fuel ratio is unstable due to inaccurate measurement; the air flow meter and gas flow meter are PID regulators, which require a certain reaction time when adjusting, resulting in slow burner load adjustment and low accuracy.

Method used

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  • Adjusting device for air-fuel ratio of combustor

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Embodiment Construction

[0026] The present invention will be further described below according to accompanying drawing and specific embodiment:

[0027] from figure 1 It can be seen that the present invention is an adjusting device for the air-fuel ratio of a burner, which is composed of a gas regulating valve, an air regulating valve and a PLC controller, without an air flow meter and a gas flow meter. The regulating valve is provided with a regulating valve opening, and the air-fuel ratio is realized by adjusting the regulating valve openings of the gas regulating valve and the air regulating valve by a PLC controller.

[0028] In the present invention, the load of the burner is firstly divided into N sections of firepower gears, generally more than 4 firepower gears, and the firepower gears can fine-tune the load through decimal places, and each firepower gear is controlled by a PLC controller corresponding to the corresponding gas adjustment valve and air regulator valve opening. According to t...

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Abstract

The invention discloses an adjusting device for air-fuel ratio of a combustor. The adjusting device is composed of a fuel gas adjusting valve, an air adjusting valve and a PLC; and the fuel gas adjusting valve, the air adjusting valve and the PLC are electrically connected. According to the adjusting device, an air flow meter and a fuel gas flow meter are omitted, the problem that the measurement is inaccurate when the flow is small and no flow meter is arranged is solved, the opening degrees of the air adjusting valve and the fuel gas adjusting valve are automatically adjusted through the PLC to achieve adjustment of the air-fuel ratio, and the adjusting device has the advantages of being high in adjusting reaction speed and stable in air-fuel ratio.

Description

technical field [0001] The invention relates to the air-fuel ratio of a burner, in particular to an adjusting device capable of adjusting the air-fuel ratio of the burner. Background technique [0002] At present, the air-fuel ratio of the burner generally adopts an air flow meter, an air regulating valve, a gas flow meter and a gas regulating valve. Adjust the flow rate of air and gas by adjusting the air regulating valve and the gas regulating valve respectively, so as to realize the adjustment of the air-fuel ratio of the burner, and the equipment cost is high; and the flow meter has a measurement lower limit, and the small flow rate cannot be measured, and there is a small power of the burner The air-fuel ratio is unstable due to inaccurate measurement; the air flow meter and gas flow meter are PID regulators, which require a certain reaction time when adjusting, resulting in slow burner load adjustment and low accuracy. Contents of the invention [0003] In view of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23N1/02
CPCF23N1/02
Inventor 吕荣锋肖彬
Owner YUEYANG YUANDA HEAT ENERGY EQUIP