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an ultra-low no x gas burner

A gas burner, ultra-low technology, applied in the direction of gas fuel burners, burners, combustion methods, etc., can solve the problems of easily causing vibration, high energy consumption, difficult to promote, etc., to improve work reliability and meet the requirements of low NOx Emission requirements, effect of diluting furnace oxygen content

Active Publication Date: 2017-07-11
SHANGHAI WISEBOND TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, although burners with NOx emission less than 30ppm have been put on the market in the world, and most of them are realized by post-treatment measures of flue gas recirculation, due to the large energy consumption and potential vibration caused by this method, there are potential safety hazards. It is more difficult to promote

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings and typical embodiments.

[0024] exist Figure 1 to Figure 8 In the present invention, the ultra-low NO X The main body of the gas burner includes a central tube 1, a swirler 2, a gas gun group 3, a throat 4, a front panel 5 and a casing 6, and it is characterized in that: the main body of the central tube 1 is a middle tube cavity 11 and a surrounding A cylindrical body composed of a cylinder wall 12; the main body of the cyclone 2 is in the shape of a ring, including an inner ring 21 with a central through hole, and the outer diameter is in line with the inner diameter of the central cylinder 1 The outer ring 22 of the inner ring 21 and the curved streamlined vane 23 arranged between the outer ring surface of the inner ring 21 and the inner ring face of the outer ring 22; There are several gas front injection holes A311, several internal gas guns 31 with several gas ...

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Abstract

The invention relates to an ultra-low NO X The gas burner includes a central cylinder, a swirler, a gas gun group, a throat, a front panel and a casing. Composed of an inner gas gun, a middle gas gun and an outer gas gun, the front panel is provided with a cross-flow hole and an extension hole for the nozzle of the outer gas gun, the central cylinder cavity is the central combustion air channel, and the ring cavity between the central cylinder and the throat It is a direct-current combustion-supporting air channel, and the annular cavity between the periphery of the throat and the shell is a cooling air channel. The inner gas gun and the middle gas gun are arranged in the direct-current combustion-supporting air channel, and the outer gas gun is arranged in the cooling air channel. When working, due to the gas sprayed by the middle gas gun as the excessive gas segmented configuration and staged combustion, the gas is fully burned in a dispersed state, effectively dilutes the oxygen content in the furnace, and reduces NO X The emissions are below 10ppm, and no CO is produced.

Description

technical field [0001] The invention relates to the technical field of gas heating, in particular to a NO X Ultra-low NOx gas burners with emissions less than 10 ppm. Background technique [0002] NO X It is an important air pollutant and an important factor that causes acid rain. Because it can form colloids with water vapor in the air to form smog, it is also one of the culprits that form PM2.5. With the strengthening of environmental protection and the deepening of energy conservation and emission reduction policies in our country, the requirements for NOx emission indicators are also increasing day by day. It has been clarified that the national standard of 100ppm can no longer be implemented, and NO X Mandatory requirements for emissions of less than 50ppm, but also put forward the goal of reducing NOx emissions from gas boilers to below 15PPM by 2017. To this end, the industry is actively exploring ways to achieve this. At present, although burners with NOx emissio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23D14/24F23D14/46F23D14/70
Inventor 陈宝明徐志斌田莉勤岳晓俊刘佳云石红海贾丹丹
Owner SHANGHAI WISEBOND TECH
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