Oxygen-enriched direct-current combustor with adjustable combustion performance

A combustion performance and burner technology, which is applied in the direction of burners, burners, and combustion methods for burning powder fuels, can solve problems such as insufficient combustion, poor fire stability, etc., to alleviate slagging and high-temperature corrosion, and increase oxygen concentration , The effect of reducing the amount of engineering transformation

Pending Publication Date: 2022-04-29
HARBIN BOILER
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of poor ignition stability and insufficient combustion in the application of pulverized coal burners in the prior art, the present invention provides an oxygen-enriched direct current burner with adjustable combustion performance

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  • Oxygen-enriched direct-current combustor with adjustable combustion performance
  • Oxygen-enriched direct-current combustor with adjustable combustion performance

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, it should be understood here that the described embodiments are not all embodiments, and are only used to illustrate the present invention, not to limit the present invention.

[0021] The present invention provides an oxygen-enriched direct-flow burner with adjustable combustion performance. The oxygen-enriched direct-flow burner includes a thick-lean direct-flow burner 1, a perimeter air chamber 2, a dense-phase oxygen injection pipe gun 4, and a light-phase oxygen injection pipe gun 7; The dense-phase oxygen injection pipe gun 4 and the light-phase oxygen injection pipe gun 7 are evenly distributed in the perimeter air chamber 2 on the dark side; the pipeline of the dense-phase oxygen injection pipe gun 4 is provided with a dense-phase oxygen injection regulating valve group 5; The pipeline of the oxygen injection pipe gun 7 is provided with a ligh...

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Abstract

The invention relates to the field of oxygen-enriched combustion, and discloses an oxygen-enriched direct-current combustor with adjustable combustion performance, which comprises a dense-thin direct-current combustor, a peripheral air chamber, a dense-phase oxygen injection pipe gun and a thin-phase oxygen injection pipe gun, the dense-phase oxygen injection pipe guns and the light-phase oxygen injection pipe guns are uniformly distributed in the dense-light side peripheral air chamber; a pipeline of the concentrated-phase oxygen injection pipe gun is provided with a concentrated-phase oxygen injection regulating valve group; a pipeline of the light-phase oxygen injection pipe gun is provided with a light-phase oxygen injection regulating valve group; and the concentrated-phase oxygen injection regulating valve group and the light-phase oxygen injection regulating valve group are used for regulating the oxygen concentration in the thick-thin direct-current burner. The problems that in the prior art, a pulverized coal burner is poor in ignition stability and insufficient in combustion in application are solved.

Description

technical field [0001] The invention relates to the field of oxygen-enriched combustion, in particular to an oxygen-enriched once-through burner with adjustable combustion performance. Background technique [0002] The deterioration of the global atmospheric environment has attracted worldwide attention, and the greenhouse effect has become one of the most important environmental problems faced by human beings. The development of new clean coal combustion technology can reduce CO2 in power production. 2 Emissions imperative, oxyfuel as a lower risk CO 2 New technologies for capture and storage have gradually drawn attention. [0003] However, since oxygen-enriched combustion uses O 2 / CO 2 The atmosphere is quite different from conventional boilers in terms of combustion, and is limited by the pulverization system. O in the primary air of the burner 2 The concentration cannot be too high, so the existing conventional pulverized coal burners have problems such as ignition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D1/00F23L7/00
CPCF23D1/00F23L7/007F23L2900/07006Y02E20/34
Inventor 王静杰庞振洲王明昊李伟贾庚翟胜兵王广猛孙长鑫张铃卜赵育松刘建宏郭秀娟
Owner HARBIN BOILER
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