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Burner

A burner and combustion head technology, applied in burners, gas fuel burners, combustion methods, etc., can solve the problem of nitrogen oxides failing to meet environmental protection requirements, and achieve the effects of lowering the combustion temperature and reducing the amount of production

Pending Publication Date: 2019-08-27
景洪
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of this application is to provide a burner to solve the problem that the nitrogen oxides produced by the burner in the prior art cannot meet the environmental protection requirements

Method used

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Embodiment Construction

[0029] refer to figure 1 , a burner provided by the embodiment of the present application, the burner includes a first combustion head 1, a second combustion head 2, a gas-air mixing pipe 3, a fan 4, a low-fire burner 5, a small-fire nozzle air pipe 6, Large fire nozzle air pipe 7, gas valve combination 8 and gas mixing chamber 9;

[0030] The first combustion head 1 and the second combustion head 2 communicate with the gas-air mixing pipe 3, and the first combustion head 1 and the second combustion head 2 are arranged along the axial direction of the gas-air mixing pipe 3;

[0031] Specifically, the gas-air mixing pipe 3 delivers the mixed gas and air to the first combustion head 1 and the second combustion head 2 .

[0032] The end of the gas-air mixing pipe 3 away from the first combustion head 1 is connected to the fan 4 through the gas mixing chamber 9; Come.

[0033] The low-fire burner 5 is arranged on the outside of the gas-air mixing pipe 3, and is located between ...

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Abstract

The invention discloses a burner. The burner comprises a first burning head, a second burning head, a gas-air mixing pipe, a draught fan, a small fire burner, a small fire nozzle gas pipe, a big firenozzle gas pipe, a gas valve combination and a gas mixing chamber, wherein the first burning head comprises a burning head body and a screen mesh; the burning head body comprises a burning head uppertop surface and a burning head side wall; a plurality of small holes are uniformly formed in the side wall of the burning head; grids are arranged on the screen mesh; and the screen mesh is arranged on the burning head body in a sleeving manner. In order to avoid generating more NO in the process of using the burner, the air excess coefficient is set to 1.3, so that the burning temperature can bereduced, and meanwhile the amount of NO formation can be reduced. Although the amount of No formation satisfies the national environmental protection requirements for NO, due to the relatively large air excess coefficient, the flame-out phenomenon occurs on the burning heads, thereby resulting in unstable burning. Therefore, the screen mesh is arranged in the burner and has the effect of stabilizing the flame, and thus, the flame-out phenomenon is avoided.

Description

technical field [0001] This application relates to the field of environmental protection, in particular to a burner. Background technique [0002] With the improvement of the country's environmental protection requirements, the nitrogen oxide content in the flue gas of power generation boilers, industrial boilers, and gas heating water heaters has increased from 150mg / m 3 Limit to 30mg / m 3 , Traditional power boilers, industrial boilers, and gas heating water heaters are not easy to meet this requirement. At the same time, this requirement is also applied to gas volumetric water heaters. In general gas volumetric water heaters, the air excess coefficient of the burner and heat exchanger is generally selected at about 1.1. The combustion temperature is high and the efficiency is high, but the generation of NO is also low. As a result, it is higher and cannot meet the nitrogen oxide content of 30mg / m 3 requirements. [0003] Therefore, how to design a burner that can meet ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D14/06F23D14/62F23D14/60
CPCF23D14/06F23D14/62F23D14/60
Inventor 景洪铙潘林何远坤
Owner 景洪
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