Ultra-low-NOx gas burner

A gas burner, ultra-low technology, applied in the direction of gas fuel burners, burners, combustion types, etc., can solve the problems of high energy consumption, easy to cause vibration, difficult to promote, etc., to meet the requirements of low NOX emissions, improve work efficiency Reliability, effect of diluting furnace oxygen content

Active Publication Date: 2015-12-09
SHANGHAI WISEBOND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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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-NOx gas burner. The ultra-low-NOx gas burner comprises a central drum, a swirler, a gas gun group, a throat opening, a front panel and a shell; the swirler is arranged at a connector of the central drum, the throat opening and the shell are coaxially arranged on the periphery of the central drum, the gas gun group is composed of multiple inter gas guns, multiple middle gas guns and multiple outer gas guns, and the front panel is provided with opposite penetrating gas flow holes and outer gas gun nozzle containing holes; a central drum cavity is a center combustion-supporting air passage, an annular cavity between the central drum and the throat opening is a direct-current combustion-supporting air passage, and an annular cavity between the periphery of the throat opening and the shell is a cooling air passage; the inner gas guns and the middle gas guns are arranged in the direct-current combustion-supporting air passage, and the outer gas guns are arranged in the cooling air passage. In the working process, due to the fact that gas sprayed from the middle gas guns is transition gas, segmented configuration and staged combustion are achieved, sufficient combustion of the gas in the dispersed state can be achieved, the content of oxygen in a furnace hearth is effectively diluted, the emission amount of NOx is decreased to below 10 ppm, and CO is not generated.

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 10ppm. 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 emission...

Claims

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Application Information

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IPC IPC(8): F23D14/24F23D14/46F23D14/70
Inventor 陈宝明田莉勤岳晓俊刘佳云石红海贾丹丹
Owner SHANGHAI WISEBOND TECH
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