CN102954468A - Burner for bright hood-type annealing furnace - Google Patents
Burner for bright hood-type annealing furnace Download PDFInfo
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- CN102954468A CN102954468A CN2012104878567A CN201210487856A CN102954468A CN 102954468 A CN102954468 A CN 102954468A CN 2012104878567 A CN2012104878567 A CN 2012104878567A CN 201210487856 A CN201210487856 A CN 201210487856A CN 102954468 A CN102954468 A CN 102954468A
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Abstract
The invention relates to a burner for a bright hood-type annealing furnace. The burner is characterized by comprising an ignition electrode, a coal gas pipe flange, a coal gas pipeline, an air short pipe, an air pipe flange, an air pipeline, an upper air branch pipe, a lower air branch pipe, an air introducing hole, an air outlet circumferential channel, a coal gas outlet circumferential channel and a coal gas outlet central channel, wherein the central line of the coal gas pipeline is superposed with the central line of the air pipeline, and the air pipeline is sleeved outside the coal gas pipeline; four same round platform air outlet circumferential channels are formed at the outlet end of the air pipeline; the coal gas outlet central channel and four same round platform coal gas outlet circumferential channels are formed at the outlet end of the coal gas pipeline; the upper and lower air branch pipes and the air introducing hole are arranged between the middle part and the outlet end of the coal gas pipeline, so that initial mixing of air and coal gas is satisfied; and through the structures of the round platform air outlet circumferential channels and the coal gas outlet circumferential channels, mutual permeation of air and coal gas is ensured. Due to the adoption of the burner, coal gas and air can be mixed more uniformly, and coal gas burns fully.
Description
Technical field
The present invention relates to the metallurgical industry Field of Heat-treatment, relate in particular to a kind of bright cover type annealing stove burner.
Background technology
At present, at the Field of Heat-treatment of metallurgical industry, bright cover type annealing stove is widely used in the annealing operation behind the cold rolling of strip steel, and the purpose of annealing is internal stress and the work hardening that produces in cold-rolled process with steel in order to eliminate, and improves the plasticity with steel; As one of committed step of annealing operation, heating with steel is even more important, underheat or over-heating will directly have influence on final product quality, and existing bright cover type annealing stove burner is as fuel take coal gas, and accompany by air and carry out combustion-supporting heating, because structurally there is defective in burner, cause coal gas and air to mix inhomogeneous, gas-fired is insufficient, the thermal efficiency is low, and gas consumption is high.
Summary of the invention
The object of the present invention is to provide a kind of bright cover type annealing stove burner, this burner can make coal gas and air mix, and gas-fired is abundant, and the thermal efficiency improves, and can reduce gas consumption simultaneously.
To achieve these goals, the technical solution adopted for the present invention to solve the technical problems is: a kind of bright cover type annealing stove burner is characterized in that it comprises ignitor, gas pipe flange, gas piping, air short tube, air hose flange, air duct, overhead gas branch pipe, lower air arm, air entrance hole, air outlet slit circumferential passageway, gas exit circumferential passageway and gas exit central passage; The center line of gas piping and the central lines of air duct, and air duct is enclosed within the gas piping outside; The upper end of air short tube is connected with the air hose flange, the lower end of air short tube is communicated with the arrival end of air duct, the port of export at air duct is four identical truncated cone-shaped air outlet slit circumferential passageways, the small end of truncated cone-shaped air outlet slit circumferential passageway is communicated with air duct, the axis of described four truncated cone-shaped air outlet slit circumferential passageways is parallel with the center line of air duct, and the distance to the air duct center line equates, wherein two air outlet slit circumferential passageways center line of being symmetrically distributed in the horizontal plane both sides of air duct center line and these two air outlet slit circumferential passageways was positioned at the vertical plane of air duct center line, and the center line that all the other two air outlet slit circumferential passageways were symmetrically distributed in the vertical plane both sides of air duct center line and these two air outlet slit circumferential passageways was positioned at the horizontal plane of air duct center line; The arrival end of gas piping is connected with the gas pipe flange, the port of export of gas piping is five gas exit passages, one of them gas exit passage is columniform gas exit central passage, the center line of gas exit central passage and the central lines of gas piping, all the other four gas exit passages are identical truncated cone-shaped gas exit circumferential passageway, the small end of truncated cone-shaped gas exit circumferential passageway is communicated with gas piping, the axis of described four truncated cone-shaped gas exit circumferential passageways is parallel with the center line of gas piping and equal to the distance of gas piping center line, wherein two gas exit circumferential passageways center line of being symmetrically distributed in the horizontal plane both sides of gas piping center line and these two gas exit circumferential passageways was positioned at the vertical plane of gas piping center line, and the center line that all the other two gas exit circumferential passageways were symmetrically distributed in the vertical plane both sides of gas piping center line and these two gas exit circumferential passageways was positioned at the horizontal plane of gas piping center line; Four gas exit circumferential passageways are corresponding with four air outlet slit circumferential passageways respectively.
Middle part and the inside between the port of export at gas piping arrange respectively upper and lower two air arms, overhead gas branch pipe most significant end is concordant with the outer wall of gas piping topmost, overhead gas branch pipe least significant end is concordant with the topmost of gas exit central passage, and overhead gas branch pipe center line and gas piping center line are along flow of gas direction angle at 45 °; Lower air arm most significant end is concordant with gas exit central passage foot, and lower air arm least significant end is concordant with the outer wall of gas piping foot, and lower air arm center line and gas piping center line are along flow of gas direction angle at 45 °; Overhead gas branch pipe and lower air arm are symmetrical up and down about the center line of gas piping; Under certain pressure, the part air in the air duct through upper and lower air arm enter the inside of gas pipeline center near, tentatively mix with the coal gas of gas piping center near the gas exit central passage.
At the position of gas piping near the port of export, air entrance hole along uniform four circles of the circumferencial direction of gas piping, described four air entrance hole sizes are identical, wherein two air entrance holes center of circle of being symmetrically distributed in the horizontal plane both sides of gas piping center line and these two air entrance holes was positioned at the vertical plane of gas piping center line, and the center of circle that all the other two air entrance holes were symmetrically distributed in the vertical plane both sides of gas piping center line and these two air entrance holes was positioned at the horizontal plane of gas piping center line; Under certain pressure, the part air in the air duct enters in the gas piping through the air entrance hole, tentatively mixes with coal gas before the gas exit circumferential passageway entrance; Four air entrance holes are corresponding with four gas exit circumferential passageways.
Under the effect of ignitor, coal gas tentatively mixes rear being lighted with air, under certain gas pressure, coal gas after lighting and air gas mixture continue to flow through gas exit circumferential passageway and gas exit central passage respectively, again mix with air outlet slit circumferential passageway air out, because air outlet slit circumferential passageway and gas exit circumferential passageway are outlet diameter greater than the truncated cone-shaped of inlet diameter, can guarantee on the structure that being the radiation state after air and coal gas flow out with certain pressure disperses, just guaranteed that also air and coal gas interpenetrate again, mix, mix with air through twice, coal gas is more even with mixing of air, the burning of coal gas is more abundant, and the thermal efficiency of coal gas is also higher.
Beneficial effect of the present invention: by upper and lower air arm and air entrance hole are set, can make the coal gas of the interior centre of gas piping and limit section all obtain tentatively mixing with air, the air outlet slit circumferential passageway of truncated cone-shaped and gas exit circumferential passageway so that under the certain pressure outflow of air and coal gas be radial and disperse, make the mixing of coal gas and air more even, the more abundant thermal efficiency of the burning of coal gas is higher.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is that the B-B of Fig. 1 is to cutaway view;
Fig. 4 is that the C-C of Fig. 1 is to cutaway view;
Fig. 5 is that the D of Fig. 1 is to view;
Fig. 6 is that the E of Fig. 1 is to view.
Among the figure: 1-ignitor, 2-gas pipe flange, 2a-gas pipe flange bolt hole, the 3-gas piping, 4-air short tube, 5-air hose flange, 5a-air hose flange bolt hole, the 6-air duct, the overhead gas branch pipe of 7a-, air arm under the 7b-, 8a, 8b, 8c, 8d-air entrance hole, 9a, 9b, 9c, 9d-air outlet slit circumferential passageway, 10a, 10b, 10c, 10d-gas exit circumferential passageway, 11-gas exit central passage.
The specific embodiment
Shown in Fig. 1,3,4,5, a kind of bright cover type annealing stove burner comprises ignitor 1, gas pipe flange 2, gas piping 3, air short tube 4, air hose flange 5, air duct 6, overhead gas branch pipe 7a, lower air arm 7b, air entrance hole 8a, 8b, 8c, 8d, air outlet slit circumferential passageway 9a, 9b, 9c, 9d, gas exit circumferential passageway 10a, 10b, 10c, 10d and gas exit central passage 11.
Shown in Fig. 1,3,4, the central lines of the center line of gas piping 3 and air duct 6, and air duct 6 is enclosed within the outside of gas piping 3.
Shown in Fig. 1,5, coal gas enters gas piping 3 by gas pipe flange 2, in gas piping 3, flow with certain pressure and speed, the port of export at gas piping 3 is divided into five gas exit passages, one of them gas exit passage is columniform gas exit central passage 11, the central lines of the center line of described gas exit central passage 11 and gas piping 3; All the other four gas exit passages are identical truncated cone-shaped gas exit circumferential passageway 10a, 10b, 10c, 10d, described truncated cone-shaped gas exit circumferential passageway 10a, 10b, 10c, the small end of 10d is communicated with gas piping 3, gas exit circumferential passageway 10a, 10b, 10c, the center line of 10d is parallel with the center line of gas piping 3 and equal to the distance of gas piping 3 center lines, gas exit circumferential passageway 10a wherein, 10c was symmetrically distributed in the horizontal plane both sides of gas piping 3 center lines, and gas exit circumferential passageway 10a, the center line of 10c was positioned at the vertical plane of gas piping 3 center lines; Gas exit circumferential passageway 10b, 10d were symmetrically distributed in the vertical plane both sides of gas piping 3 center lines, and the center line of gas exit circumferential passageway 10b, 10d was positioned at the horizontal plane of gas piping 3 center lines.
Such as Fig. 1, shown in 5, air enters air duct 6 by gas pipe flange 2 through air short tube 4, in air duct 6, flow with certain pressure and speed, be divided into four tunnel identical truncated cone-shaped air outlet slit circumferential passageway 9a at air duct 6 ports of export, 9b, 9c, 9d, described truncated cone-shaped air outlet slit circumferential passageway 9a, 9b, 9c, the small end of 9d is communicated with air duct 6, air outlet slit circumferential passageway 9a, 9b, 9c, the center line of 9d is parallel with the center line of air duct 6 and equal to the distance of air duct 6 center lines, air outlet slit circumferential passageway 9a wherein, 9c was symmetrically distributed in the horizontal plane both sides of air duct 6 center lines, and air outlet slit circumferential passageway 9a, the center line of 9c was positioned at the vertical plane of air duct 6 center lines, air outlet slit circumferential passageway 9b, 9d was symmetrically distributed in the vertical plane both sides of air duct 6 center lines, and air outlet slit circumferential passageway 9b, the center line of 9d was positioned at the horizontal plane of air duct 6 center lines; Air outlet slit circumferential passageway 9a, 9b, 9c, 9d are corresponding with gas exit circumferential passageway 10a, 10b, 10c, 10d respectively.
Shown in Fig. 1,3, middle part and the inside between the port of export at gas piping 3 arrange respectively overhead gas branch pipe 7a and lower air arm 7b, overhead gas branch pipe 7a most significant end is concordant with the outer wall of gas piping 3 topmosts, overhead gas branch pipe 7a least significant end is concordant with the topmost of gas exit central passage 11, and the center line of the center line of overhead gas branch pipe 7a and gas piping 3 is along flow of gas direction angle at 45 °; Lower air arm 7b least significant end is concordant with the outer wall of gas piping 3 foots, lower air arm 7b most significant end is concordant with the foot of gas exit central passage 11, and the center line of lower air arm 7b and the center line of gas piping 3 are along flow of gas direction angle at 45 °; Overhead gas branch pipe 7a and lower air arm 7b are symmetrical up and down about the center line of gas piping 3; Under certain pressure, the part air in the air duct 6 enters gas piping 3 inside near near the position centers through overhead gas branch pipe 7a and lower air arm 7b, tentatively mixes with gas piping 3 interior coal gas near the export center places.
Shown in Fig. 1,4, at gas piping 3 close gas exit circumferential passageway 10a, 10b, 10c, 10d position, four circular air entrance hole 8a, 8b, 8c, 8d that size is identical in the circumferential direction of the circle evenly distribute, its Air entrance hole 8a, 8c were symmetrically distributed in the horizontal plane both sides of gas piping 3 center lines and the vertical plane that its center of circle was positioned at gas piping 3 center lines, and air entrance hole 8b, 8d were symmetrically distributed in the vertical plane both sides of gas piping 3 center lines and the horizontal plane that its center of circle was positioned at gas piping 3 center lines; Under certain pressure, the part air in the air duct 6 enter in the gas piping 3 through air entrance hole 8a, 8b, 8c, 8d, tentatively mix with coal gas before gas exit circumferential passageway 10a, 10b, 10c, the 10d entrance; Air entrance hole 8a, 8b, 8c, 8d and gas exit circumferential passageway 10a, 10b, 10c, 10d are corresponding.
Shown in Fig. 1,2,6, the circumferential identical bolt hole 2a of uniform four sizes in edge on gas pipe flange 2; The circumferential identical bolt hole 5a of uniform four sizes in edge on air hose flange 5.
Such as Fig. 1,3,4, shown in 5, under certain pressure, air in the air duct 6 is through overhead gas branch pipe 7a, lower air arm 7b and air entrance hole 8a, 8b, 8c, 8d enters gas piping 3 inside, and tentatively mix with coal gas in the gas piping 3, mixed coal gas is lighted by ignitor 1, under certain gas pressure, coal gas after lighting is respectively through gas exit circumferential passageway 10a, 10b, 10c, 10d and gas exit central passage 11 continue to flow, with air outlet slit circumferential passageway 9a, 9b, 9c, 9d air out mixes again, because outlet air circumferential passageway 9a, 9b, 9c, 9d and gas exit circumferential passageway 10a, 10b, 10c, 10d is outlet diameter greater than the truncated cone-shaped of inlet diameter, can guarantee on the structure that being the radiation state after air and coal gas flow out with certain pressure disperses, just guaranteed that also air and coal gas interpenetrate again, fully mix, mix with air through twice, gas-fired is more abundant, and the thermal efficiency is higher.
Claims (6)
1. a bright cover type annealing stove burner is characterized in that it mainly comprises ignitor (1), gas pipe inlet flange (2), gas piping (3), air intake short tube (4), air hose inlet flange (5), air duct (6), overhead gas branch pipe (7a), lower air arm (7b), air entrance hole (8a, 8b, 8c, 8d), air outlet slit circumferential passageway (9a, 9b, 9c, 9d), gas exit circumferential passageway (10a, 10b, 10c, 10d) with gas exit central passage (11); The central lines of the center line of gas piping (3) and air duct (6), air duct (6) are enclosed within gas piping (3) outside; The port of export of air duct (6) is four identical truncated cone-shaped air outlet slit circumferential passageways (9a, 9b, 9c, 9d), and the small end of truncated cone-shaped air outlet slit circumferential passageway (9a, 9b, 9c, 9d) is communicated with air duct (6); The port of export of gas piping (3) is five gas exit passages, one of them gas exit passage is columniform gas exit central passage (11), the center line of gas exit central passage (11) and the central lines of gas piping, all the other four gas exit passages are identical truncated cone-shaped gas exit circumferential passageway (10a, 10b, 10c, 10d), and the small end of truncated cone-shaped gas exit circumferential passageway (10a, 10b, 10c, 10d) is communicated with gas piping (3); Gas exit circumferential passageway (10a, 10b, 10c, 10d) is corresponding with air outlet slit circumferential passageway (9a, 9b, 9c, 9d) respectively.
2. bright cover type annealing stove burner as claimed in claim 1, it is characterized in that air outlet slit circumferential passageway (9a, 9b, 9c, axis 9d) is parallel with the center line of air duct (6) and equal to the distance of air duct (6) center line, air outlet slit circumferential passageway (9a wherein, 9c) be symmetrically distributed in horizontal plane both sides and the air outlet slit circumferential passageway (9a of air duct (6) center line, center line 9c) was positioned at the vertical plane of air duct (6) center line, air outlet slit circumferential passageway (9b, 9d) be symmetrically distributed in vertical plane both sides and the air outlet slit circumferential passageway (9b of air duct (6) center line, center line 9d) was positioned at the horizontal plane of air duct (6) center line.
3. bright cover type annealing stove burner as claimed in claim 1, it is characterized in that gas exit circumferential passageway (10a, 10b, 10c, axis 10d) is parallel with the center line of gas piping (3) and equal to the distance of gas piping (3) center line, gas exit circumferential passageway (10a wherein, 10c) be symmetrically distributed in horizontal plane both sides and the gas exit circumferential passageway (10a of gas piping (3) center line, center line 10c) was positioned at the vertical plane of gas piping (3) center line, gas exit circumferential passageway (10b, 10d) be symmetrically distributed in vertical plane both sides and the gas exit circumferential passageway (10b of gas piping (3) center line, center line 10d) was positioned at the horizontal plane of gas piping (3) center line.
4. bright cover type annealing stove burner as claimed in claim 1, it is characterized in that overhead gas branch pipe (7a) most significant end is concordant with the outer wall of gas piping (3) topmost, overhead gas branch pipe (7a) least significant end is concordant with the topmost of gas exit central passage (11), and overhead gas branch pipe (7a) center line and gas piping (3) center line are along flow of gas direction angle at 45 °.
5. bright cover type annealing stove burner as claimed in claim 1, it is characterized in that lower air arm (7b) most significant end is concordant with gas exit central passage (11) foot, lower air arm (7b) least significant end is concordant with the outer wall of gas piping (3) foot, and lower air arm (7b) center line and gas piping (3) center line are along flow of gas direction angle at 45 °.
6. such as the described bright cover type annealing stove burner of claim 4-5, it is characterized in that overhead gas branch pipe (7a) and lower air arm (7b) are symmetrical up and down about the center line of gas piping (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210487856.7A CN102954468B (en) | 2012-11-27 | 2012-11-27 | Burner for bright hood-type annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210487856.7A CN102954468B (en) | 2012-11-27 | 2012-11-27 | Burner for bright hood-type annealing furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102954468A true CN102954468A (en) | 2013-03-06 |
| CN102954468B CN102954468B (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210487856.7A Expired - Fee Related CN102954468B (en) | 2012-11-27 | 2012-11-27 | Burner for bright hood-type annealing furnace |
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| Country | Link |
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| CN (1) | CN102954468B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672892A (en) * | 2013-09-16 | 2014-03-26 | 北京神雾环境能源科技集团股份有限公司 | Ignition burner |
| CN106918053A (en) * | 2015-12-24 | 2017-07-04 | 中国石油天然气股份有限公司 | Igniter and oilfield exploitation method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5558515A (en) * | 1994-04-02 | 1996-09-24 | Abb Management Ag | Premixing burner |
| CN2432449Y (en) * | 2000-07-19 | 2001-05-30 | 鞍山钢铁集团公司 | Burner for bell type annealing furnace |
| JP2004093110A (en) * | 2002-07-08 | 2004-03-25 | Nippon Sanso Corp | Burner lance and refine method |
| JP2004211941A (en) * | 2002-12-27 | 2004-07-29 | Tetsuto Tamura | Device for preventing deformation due to thermal expansion of inner cylinder used for high temperature and high pressure combustion device of multi-cylinder structure |
| CN201412846Y (en) * | 2008-11-09 | 2010-02-24 | 覃洪波 | Gas burner |
| CN102128453A (en) * | 2011-01-28 | 2011-07-20 | 岳阳科德科技有限责任公司 | Pre-combustion burner |
| US8292615B2 (en) * | 2006-01-11 | 2012-10-23 | Norwegian University Of Science And Technology (Ntnu) | Single stage gaseous fuel burner with low NOx emissions |
| CN203010603U (en) * | 2012-11-27 | 2013-06-19 | 薛垂义 | Burner for bright hood-type annealing furnace |
-
2012
- 2012-11-27 CN CN201210487856.7A patent/CN102954468B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5558515A (en) * | 1994-04-02 | 1996-09-24 | Abb Management Ag | Premixing burner |
| CN2432449Y (en) * | 2000-07-19 | 2001-05-30 | 鞍山钢铁集团公司 | Burner for bell type annealing furnace |
| JP2004093110A (en) * | 2002-07-08 | 2004-03-25 | Nippon Sanso Corp | Burner lance and refine method |
| JP2004211941A (en) * | 2002-12-27 | 2004-07-29 | Tetsuto Tamura | Device for preventing deformation due to thermal expansion of inner cylinder used for high temperature and high pressure combustion device of multi-cylinder structure |
| US8292615B2 (en) * | 2006-01-11 | 2012-10-23 | Norwegian University Of Science And Technology (Ntnu) | Single stage gaseous fuel burner with low NOx emissions |
| CN201412846Y (en) * | 2008-11-09 | 2010-02-24 | 覃洪波 | Gas burner |
| CN102128453A (en) * | 2011-01-28 | 2011-07-20 | 岳阳科德科技有限责任公司 | Pre-combustion burner |
| CN203010603U (en) * | 2012-11-27 | 2013-06-19 | 薛垂义 | Burner for bright hood-type annealing furnace |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672892A (en) * | 2013-09-16 | 2014-03-26 | 北京神雾环境能源科技集团股份有限公司 | Ignition burner |
| CN103672892B (en) * | 2013-09-16 | 2016-08-17 | 北京神雾环境能源科技集团股份有限公司 | Igniter burner |
| CN106918053A (en) * | 2015-12-24 | 2017-07-04 | 中国石油天然气股份有限公司 | Igniter and oilfield exploitation method |
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| Publication number | Publication date |
|---|---|
| CN102954468B (en) | 2015-04-08 |
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Granted publication date: 20150408 Termination date: 20151127 |