Low-nitrogen-oxide gas combustor and combustion method of combustor

A low-nitrogen oxide, burner technology, applied in combustion methods, gas fuel burners, burners, etc., can solve the problem of insufficient combustion, uneven temperature field of gas burners, and inability to control pollutants well, etc. problem, to achieve the effect of uniform flame temperature and inhibition of nitrogen oxide emissions

Active Publication Date: 2015-05-06
SHANGHAI HANZHUO ENERGY TECH
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Problems solved by technology

[0005] Some existing low-nitrogen combustion technologies are mainly based on combustion classification technology, dense-lean combustion technology, etc., but the distribution of gas and air, as well as the corresponding distribution adj

Method used

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  • Low-nitrogen-oxide gas combustor and combustion method of combustor

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Example Embodiment

[0021] like figure 1 As shown, the low NOx burner of the present invention is a cylindrical structure, which includes a casing 201, a central sleeve 202, an outer gas cavity 203, a regulating damper 4, a gas main pipe 6, an ignition gun 7, an installation port 8. Outer layer gas pipe 5, central gas nozzle 9, primary cyclone 10, secondary cyclone 11.

[0022] Wherein, the installation port 8 is composed of a vertical mouth baffle 81 and an annular surrounding plate 82 connected to the edge of the mouth baffle 81 .

[0023] The gas main pipe 6 is located in the center of the burner, passes through the mouth baffle 81 of the installation port 8, and extends toward the furnace; the outer gas pipes 5 and the central gas nozzle 9 are several, and are arranged circumferentially symmetrically around the gas main pipe 6. , and are all communicated with the gas main pipe 6, wherein the central gas nozzle 9 is arranged in the center, and the outer layer gas pipe 5 is arranged in the per...

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Abstract

The invention discloses a low-nitrogen-oxide gas combustor and a combustion method of the combustor. The combustor comprises a primary combustor and a secondary combustor, wherein the primary combustor is arranged at the center; the secondary gas combustor is arranged at the periphery of the primary combustor; the primary combustor comprises a central gas jetting pipe annularly and symmetrically arranged and a primary whirlcone arranged in front of the central gas jetting pipe; the secondary combustor comprises an outer gas pipe, an outer gas jetting opening, a Venturi channel and a secondary whirlcone; each of the outer gas jetting opening and the outer gas pipe is annularly and symmetrically arranged; the outer gas jetting opening is communicated with the outer gas pipe through an outer gas cavity; the Venturi channel is arranged between the outer gas jetting opening and the central gas jetting pipe; the secondary whirlcone is arranged at the outlet of the Venturi channel. The low-nitrogen-oxide gas combustor has the advantages that the combustion area flame temperature is uniform, no obvious high-temperature area is generated, and the emission of nitrogen oxide is inhibited.

Description

technical field [0001] The invention belongs to the technical field of burners, and in particular relates to a low nitrogen oxide gas burner and a combustion method thereof. Background technique [0002] With the improvement of environmental protection requirements and the popularization of natural gas use, low-polluting gas combustion technology has been paid more and more attention by enterprises. Gas combustion is safe, efficient, and easy to operate, so it should be popularized and applied. [0003] At present, the application of gas burners in my country has shortcomings such as extensive and unreasonable design, resulting in most of the pollutant emissions that do not meet the current environmental protection standards. [0004] The NOx produced by the gas burner is mainly NO. Therefore, the research on the formation of NOx in the combustion process is mainly to study the formation of NO. There are three main types of NO generation in the combustion process: the firs...

Claims

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Application Information

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IPC IPC(8): F23D14/24F23D14/46
CPCF23D14/24F23D14/58
Inventor 刘上光
Owner SHANGHAI HANZHUO ENERGY TECH
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