CN101561140B - Wide-flame burner nozzle - Google Patents
Wide-flame burner nozzle Download PDFInfo
- Publication number
- CN101561140B CN101561140B CN2009101039385A CN200910103938A CN101561140B CN 101561140 B CN101561140 B CN 101561140B CN 2009101039385 A CN2009101039385 A CN 2009101039385A CN 200910103938 A CN200910103938 A CN 200910103938A CN 101561140 B CN101561140 B CN 101561140B
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- air
- spout
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- wide
- flame
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Abstract
The invention belongs to the technical field of combustion and relates to a wide-flame burner nozzle. The wide-flame burner nozzle mainly comprises a fuel-blowing channel, an air passage and a burner tile and is characterized in that the air passage is provided with a primary air spout and a secondary air spout, the primary air spout, the secondary air spout and an outlet of the fuel-blowing channel are positioned on the same level, a certain inclination angle is formed between a stretching surface of the burner tile and the central axial line of the fuel-blowing channel, and ranges from 5 to 15 degrees; and an air distributor and an air isolating plate are arranged in the air passage and used for regulating the proportion of the primary air and the secondary air so as to adjust the flame.The wide-flame burner nozzle is low in pollution, low in oxidation, and can be widely applied to the heating equipment taking gas as the fuel in metallurgical industry, mechanical industry, chemical industry and the like, especially to the reheating industrial furnace with high furnace temperature.
Description
Technical field
The invention belongs to field of combustion technology, relate to a kind of wide-flame burner nozzle.
Background technology
At present, mostly the burner that uses on the smelting and heating is the structure of air parcel coal gas.Air is wrapped in coal gas, and rotation sprays into stove hall internal combustion, forms cylindrical or flaring revolving body flame.The skin of flame mainly is an air, is oxidizing atmosphere, and the internal layer of flame mainly is a fuel, is reducing atmosphere.There are several point defects in this flame structure.
(1) furnace heat transfer is poor: revolving body flame is relatively poor relatively to the heat transfer that is heated blank, and mainly showing as flame, to sprawl degree in the horizontal direction not enough, little at the perpendicular projection area that is heated on the material base, relatively low to the RADIATION ANGLE COEFFICIENT of steel billet.This will cause the interior complex heat transfer coefficient of stove low, and then reduce the utilization rate of the burner hearth thermal efficiency and fuel, be unfavorable for energy-conservation.
(2) burner is arranged restrictedly, and one-time investment and maintenance are big: revolving body flame has only the arrangement pitch that as far as possible shortens burner in that to be heated on the blank perpendicular projection area little, could improve the temperature homogeneity that is heated blank.But the arrangement pitch of burner can not be accomplished random shortening, because it often receives the influence of many factors such as furnace wall column, stove internal partition wall, water beam column.And the shortening spacing also just means the quantity that will increase burner, increase one-time investment and maintenance.
(3) be unfavorable for reducing oxidization burning loss: in whole heating process, all be that outer flame is pressed close to blank.And the skin of flame is an oxidizing atmosphere, and the oxidized property of whole material base atmosphere is surrounded, and this will accelerate the oxidation rate of blank under the high temperature.
Summary of the invention
The purpose of this invention is to provide a kind of wide-flame burner nozzle, this burner hangs down and pollutes, suboxides, has overcome the deficiency of prior art.The present invention mainly is made up of fuel ejection passage, air duct and burner block; It is characterized in that: described air duct is provided with primary air spout and auxiliary air spout; The outlet of primary air spout and auxiliary air spout and fuel ejection passage is positioned at same plane; The expansion face of described burner block becomes certain inclination angle with the axis of fuel ejection passage, and the inclination angle scope is 5 °～15 °.Air distributor and air insulated plate are set in the air duct, the ratio that is used for regulating primary air and auxiliary air, and then regulate flame.
Flame is mainly sprawled along horizontal direction, and with the perpendicular projection area of expansion flame on blank, and then the temperature of raising heat-transfer effect and blank is even, also can realize the big pitch arrangement of burner.The flame front in the vertical direction of this burner is divided into oxidizing atmosphere and reducing atmosphere is two-layer simultaneously, and the layout through burner can realize that the periphery of blank all is a reducing atmosphere, and then reduces the oxidization burning loss of blank.It is combustion-supporting that the air of this burner is divided into twice entering burner hearth, to reduce the growing amount of nitrogen oxide.
Technical scheme of the present invention is following:
The present invention sprays passage, air duct, air distributor, air insulated plate, primary air ejiction opening, auxiliary air ejiction opening and burner block by fuel and forms.Primary air spout and auxiliary air spout are two row of horizontal spouts, and every row's spout is no less than 3; Fuel ejection passage is no less than 2, axis in the projection on the horizontal plane between the primary air spout; The outlet of fuel ejection passage and primary air spout and auxiliary air spout are positioned at same plane, and from the horizontal by certain inclination angle, the inclination angle scope is 5 °～10 °; The expansion face of burner block becomes certain inclination angle with the fuel channel axis, 5 °～15 ° of inclination angle scopes.Air distributor and air insulated plate are set in air duct, and primary air spout and auxiliary air spout are positioned at the both sides of air insulated plate.Fuel ejection channel arrangement is between the primary air spout.Air distributor can overturn clockwise or counterclockwise, and flip angle is 0 °～90 °.
Wide-flame burner nozzle sprays passage, air duct, air distributor, air insulated plate, primary air ejiction opening, auxiliary air ejiction opening and burner block by fuel and forms.Combustion air is divided into two sub-levels by air distributor and air insulated plate and sprays into burner hearth, and primary air and auxiliary air are positioned at the same side of fuel, and near fuel is primary air; Fuel then sprays into certain inclination angle, with the diffusion of compacting flame in the vertical direction, and the flame level is sprawled.Fuel elder generation and primary air mixed combustion are again with auxiliary air mixed combustion.When fuel and primary air burning, fuel is superfluous, forms reproducibility flame; Do not burn completely fuel once more with auxiliary air mixed combustion, form oxidisability flame.Air and fuel burn at twice, have enlarged the combustion zone, have elongated flame, have also reduced the oxygen concentration in the combustion zone simultaneously, help reducing nitrogen oxide.And air distributor and pocket division board can be regulated the distribution of primary air and auxiliary air as required, optimize flame.The top expansion angle of burner block becomes certain inclination angle with the fuel channel axis, and to control this regional smoke backflow amount, the flue gas of avoiding refluxing waters down fuel, causes the flame root unstable, so cause low temperature under take off fire, accident such as stop working.
The low pollution of the present invention, suboxides, can be widely used in industries such as metallurgy, machinery, chemical industry is the Thermal Equipment of fuel with gas, particularly the stove of heat industrial again of high furnace temperature.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention;
Accompanying drawing 2 is that A of the present invention is to view;
Among the figure: part 1 is that fuel ejection passage, part 2 are that air distributor, part 3 are that air duct, part 4 are that air insulated plate, part 5 are that burner block, part 6 are that primary air spout, part 7 are auxiliary air spouts.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described:
The present invention is made up of fuel ejection passage 1, air duct 3, air distributor 2, air insulated plate 4, primary air spout 6, auxiliary air spout 7 and burner block 5.Primary air spout 6 is two row of horizontal spouts with auxiliary air spout 7,5 of every row's spouts; Fuel ejection passage 1 is 4, axis in the projection on the horizontal plane between primary air spout 6; The outlet and the primary air spout 6 of fuel ejection passage 1 are positioned at same plane with auxiliary air spout 7, and from the horizontal by certain inclination angle, inclination angle A1 is 7 °; The top expansion face of burner block 5 becomes certain inclination angle with the axis of fuel channel 1, and the inclination angle is 10 °; Air distributor 2 and air insulated plate 4 are set in air duct 3, and primary air spout 6 and auxiliary air spout 7 are positioned at the both sides of air insulated plate 4; Fuel ejection passage 1 be arranged in primary air spout 6 one sides and with primary air spout 6 arranged crosswise; Air distributor 2 can overturn clockwise or counterclockwise, and flip angle is 0 °～90 °.
Air sprays into burner hearth through primary air spout 6 and auxiliary air spout 7 levels respectively through after air duct 3, air distributor 2 and the air insulated plate 4.Air distributor 2 can overturn clockwise or counterclockwise, and to regulate the amount of primary air and auxiliary air, air insulated plate 4 is opened primary air and auxiliary air obstruct.
Fuel is that 7 ° of inclination angles spray into from fuel channel 1 with A1 then, and this can suppress the diffusion of flame in the vertical direction, and promotes flame sprawling on horizontal plane.
Fuel elder generation and the air mixed combustion that sprays into from primary air spout 6 are again with the air mixed combustion that sprays into from auxiliary air spout 7.When fuel and primary air burning, fuel is superfluous, forms reproducibility flame; Do not burn completely fuel once more with auxiliary air mixed combustion, form oxidisability flame.When using this burner heating blank, can press close to blank to reproducibility flame, surrounded, to reduce the oxidization burning loss of blank showing by weak reducing atmosphere of blank.
Air and fuel burn at twice, have enlarged the combustion zone, have elongated flame, have also reduced the oxygen concentration in the combustion zone simultaneously, help reducing nitrogen oxide.
It is 10 ° that the expansion angle of burner block becomes inclination angle A2 with fuel channel 1 axis, and to control this regional smoke backflow amount, the flue gas of avoiding refluxing waters down fuel, causes the flame root unstable, so cause low temperature under take off fire, accident such as stop working.
The low pollution of the present invention, suboxides, can be widely used in industries such as metallurgy, machinery, chemical industry is the Thermal Equipment of fuel with gas, particularly the stove of heat industrial again of high furnace temperature.
Claims (6)
1. wide-flame burner nozzle; Mainly form by fuel ejection passage (1), air duct (3) and burner block (5); It is characterized in that: described air duct (3) is provided with primary air spout (6) and auxiliary air spout (7); Primary air spout (6) and auxiliary air spout (7) are positioned at same plane with the outlet of fuel ejection passage (1), and fuel ejection passage is from the horizontal by certain inclination angle, and the inclination angle scope is 5 °～10 °; The expansion face of described burner block (5) becomes certain inclination angle with the axis of described fuel ejection passage (1), and the inclination angle scope is 5 °～15 °.
2. wide-flame burner nozzle as claimed in claim 1 is characterized in that: described primary air spout (6) and auxiliary air spout (7) are two row of horizontal spouts, and every row's spout is no less than 3.
3. wide-flame burner nozzle as claimed in claim 1 is characterized in that: described fuel ejection passage (1) is no less than 2, and the axis is positioned between the primary air spout (6) in the projection on the horizontal plane.
4. wide-flame burner nozzle as claimed in claim 1 is characterized in that: described primary air spout (6) and auxiliary air spout (7) are positioned at the same side of fuel ejection passage (1).
5. wide-flame burner nozzle as claimed in claim 1 is characterized in that: air distributor (2) and air insulated plate (4) are set in the described air duct (3), and described primary air spout (6) and auxiliary air spout (7) are positioned at the both sides of air insulated plate (4).
6. wide-flame burner nozzle as claimed in claim 5 is characterized in that: described air distributor (2) can overturn clockwise or counterclockwise, and flip angle is 0 °～90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101039385A CN101561140B (en) | 2009-05-25 | 2009-05-25 | Wide-flame burner nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101039385A CN101561140B (en) | 2009-05-25 | 2009-05-25 | Wide-flame burner nozzle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101561140A CN101561140A (en) | 2009-10-21 |
| CN101561140B true CN101561140B (en) | 2012-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101039385A Expired - Fee Related CN101561140B (en) | 2009-05-25 | 2009-05-25 | Wide-flame burner nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101561140B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102777915A (en) * | 2012-07-19 | 2012-11-14 | 马鞍山天洲节能工程科技有限公司 | Circumferentially distributed burner of natural gas channels |
| CN107191934B (en) * | 2017-07-31 | 2023-11-03 | 重庆赛迪热工环保工程技术有限公司 | Non-premixed burner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86106900A (en) * | 1986-10-17 | 1988-04-27 | 冶金工业部攀枝花钢铁公司 | Combustible gas burner for soaking |
| CN2379705Y (en) * | 1999-06-04 | 2000-05-24 | 重庆钢铁设计研究院 | Low nitrogen oxides and flame adjustable burner nozzle |
| US6126438A (en) * | 1999-06-23 | 2000-10-03 | American Air Liquide | Preheated fuel and oxidant combustion burner |
| CN1507549A (en) * | 2001-04-06 | 2004-06-23 | 液体空气乔治洛德方法利用和研究的具 | Combustion method comprising separate injections of fuel and oxidant and burner assembly therefor |
| CN201412852Y (en) * | 2009-05-25 | 2010-02-24 | 重庆赛迪工业炉有限公司 | Wide flame burner |
-
2009
- 2009-05-25 CN CN2009101039385A patent/CN101561140B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86106900A (en) * | 1986-10-17 | 1988-04-27 | 冶金工业部攀枝花钢铁公司 | Combustible gas burner for soaking |
| CN2379705Y (en) * | 1999-06-04 | 2000-05-24 | 重庆钢铁设计研究院 | Low nitrogen oxides and flame adjustable burner nozzle |
| US6126438A (en) * | 1999-06-23 | 2000-10-03 | American Air Liquide | Preheated fuel and oxidant combustion burner |
| CN1507549A (en) * | 2001-04-06 | 2004-06-23 | 液体空气乔治洛德方法利用和研究的具 | Combustion method comprising separate injections of fuel and oxidant and burner assembly therefor |
| CN201412852Y (en) * | 2009-05-25 | 2010-02-24 | 重庆赛迪工业炉有限公司 | Wide flame burner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101561140A (en) | 2009-10-21 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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Address after: 401122 Chongqing Shibei District CCID Road No. 1 Patentee after: CHONGQING CISDI THERMAL & ENVIRONMENTAL ENGINEERING Co.,Ltd. Address before: 400013 Chongqing City, Yuzhong District No. 2 Steel Road, No. 1 Patentee before: CISDI INDUSTRIAL FURNACE Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 |
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| CF01 | Termination of patent right due to non-payment of annual fee |