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Graded low-NOx straight flame burning nozzle

A technology of direct flame and burner bricks, which is applied in the field of graded low NOx direct flame burners and heat treatment furnaces. It can solve problems affecting popularization and application, high NOx content, and poor flame rigidity, so as to reduce content, reduce flame temperature, The effect of improving the heating quality

Pending Publication Date: 2018-09-14
HANGZHOU ZHONGJING TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, most direct-flame burners adopt a mixed combustion structure, the flame temperature is high, and the NOx content in the combustion products is high, which causes great pollution to the environment. However, most low-NOx emission burners have poor flame stiffness and complex structures, which affect other Popularization and Application on Industrial Furnace

Method used

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  • Graded low-NOx straight flame burning nozzle
  • Graded low-NOx straight flame burning nozzle
  • Graded low-NOx straight flame burning nozzle

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the present invention and the present invention is not limited to the following examples.

[0024] Example.

[0025] see Figure 1 to Figure 6 It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the present invention Therefore, it has no technical substantive meaning, and any modification of structure, change of proportional relationship or adjustment of size shall still fall into the within the scope covered by the technical content disclosed in the present invention. At the same time, if terms such as "upper", "lower", "left", "right", "middle" and "one" are used in this spec...

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Abstract

The invention relates to a graded low-NOx straight flame burning nozzle and belongs to the technical field of gas burning nozzles. Currently, most straight flame burning nozzles mostly adopt a one-time mixed combustion structure, the flame temperature is high, the NOx content in combustion products is high, large pollution is caused to the environment, but most burning nozzles low in NOx emissionare poor in flame rigidity. The graded low-NOx straight flame burning nozzle comprises an end cover, a shell, a burning nozzle core, a fuel gas pipe, an air flow guiding device, a burning nozzle brick, an ignition electrode and a flame detection device; the end cover is provided with a fuel gas connection port and a peephole; the shell comprises an air connection port and an air circulation cavity; the air connection port communicates with the air circulation cavity; the ignition electrode and the flame detection device are both installed on the end cover; the end cover is installed on one side of the shell; the burning nozzle brick is installed on the other side of the shell; the air flow guiding device is installed in the air circulation cavity, and is located between the shell and the burning nozzle brick; the burning nozzle core is installed in the air flow guiding device; and the end cover is connected with the burning nozzle core through the fuel gas pipe.

Description

technical field [0001] The invention relates to a graded low NOx direct flame burner, which belongs to the technical field of gas burners. It is suitable for industrial furnaces in steel, non-ferrous metals, machinery, ceramics and other industries, especially heat treatment furnaces with air preheating. Background technique [0002] At present, most direct-flame burners adopt a mixed combustion structure, the flame temperature is high, and the NOx content in the combustion products is high, which causes great pollution to the environment. However, most low-NOx emission burners have poor flame stiffness and complex structures, which affect other Promotion and application in industrial furnaces. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned deficiencies existing in the prior art, and provide a kind of reasonable structure design through multi-stage mixed combustion, reduce the oxygen content in the flame center, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D14/02F23D14/46F23D14/62F23D14/58F23D14/70
CPCF23D14/02F23D14/46F23D14/58F23D14/62F23D14/70F23D2207/00Y02E20/34
Inventor 潘景新
Owner HANGZHOU ZHONGJING TECH CO LTD
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