CN201944851U - Double-cyclone oxygen-enriched flat-flame burner - Google Patents
Double-cyclone oxygen-enriched flat-flame burner Download PDFInfo
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- CN201944851U CN201944851U CN2011200303167U CN201120030316U CN201944851U CN 201944851 U CN201944851 U CN 201944851U CN 2011200303167 U CN2011200303167 U CN 2011200303167U CN 201120030316 U CN201120030316 U CN 201120030316U CN 201944851 U CN201944851 U CN 201944851U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model relates to a double-cyclone oxygen-enriched flat-flame burner, which mainly comprises an air core pipe and a gas core pipe, wherein an air cyclone is fixedly arranged at the air outlet tail end of the air core pipe, and an air outlet is connected with the gas inlet end of a burner nozzle; and a gas cyclone is fixedly arranged at the gas outlet tail end of the gas core pipe, and a gas outlet is also connected with the gas inlet end of the burner nozzle. The double-cyclone oxygen-enriched flat-flame burner is applicable to low-heat value gas combustion, a plurality of design working conditions can be achieved without replacing a whole burner under the condition that the heat value of gas and the oxygen enrichment concentration of combustion-supporting air fluctuate independently or jointly, the complete combustion with low air-fuel ratio can be realized, the purposes of energy conservation and emission reduction can be finally realized, and the deficiencies in an existing burning device can be further overcome.
Description
Technical field
The utility model relates to a kind of burner of industrial furnace, particularly relates to a kind of bispin stream oxygen enrichment flat-flame burner.
Background technology
The flat flame burning is the combustion system that industrial furnace generally adopts, and it is typical premixed type burning, and radianting capacity is strong, and especially the performance aspect heating furnace steel billet uniformity is particularly outstanding.But China's overwhelming majority flat flame burner all is to adopt air-breathing at present, and its shortcoming is to fuel gases calorific value requirement height, consumes the high coke-stove gas of a large amount of values.This be because: if fuel gases calorific value is low, cause the combustion gas theoretical temperature combustion lower, can't guarantee the production demand, for improving the air-breathing theoretical temperature combustion, be forced to adopt the technology of air, coal gas or sky, gas double pre-heating, fuel gases calorific value also must guarantee at 7500-9200KJ/NM
3Between, it forces the coke-stove gas that will contain 30%～40% high heating value in air mixture.
Increasingly mature along with low-cost oxygen enrichment preparation technique, the continuous increase of national energy-saving and emission-reduction pressure, the cry that coke-stove gas is used for hydrogen metallurgy is more and more higher, by on industrial furnace, carry out oxygen-enriched combusting directly utilize low combustion value furnace gas require extremely urgent.
If adopting on the air-breathing industrial furnace directly enforcement oxygen enrichment technology, the parameters such as flow of its fuel gases calorific value, air-fuel ratio, combustion gas and combustion air incite somebody to action all that great changes will take place.Especially the mixed gas of the middle use of smelter, its calorific value will along with blast furnace gas and coke-stove gas changes because of mixed proportion or the variation of its both calorific values own is fluctuateed, increase the adjusting factor of oxygen-rich concentration again, originally the air-breathing burner of Shi Yonging can't be suitable at all.
This shows that if above-mentioned existing burner is directly applied to oxygen-enriched combusting, it obviously still has inconvenience and defective, and demand urgently further being improved in structure and use.How to found a kind of applicable to low-heat value gas combustion, to the oxygen-rich concentration of fuel gases calorific value and combustion air in a big way separately under the condition of fluctuation even double oscillation, do not need to change burner integral body, just can reach a plurality of design conditions, realize the completing combustion of low air-fuel ratio, the final bispin stream oxygen enrichment flat-flame burner of realizing the new structure of energy-saving and emission-reduction purpose is that current this area utmost point needs improved target.
The utility model content
The technical problems to be solved in the utility model provides a kind of bispin stream oxygen enrichment flat-flame burner, make it applicable to low-heat value gas combustion, to the oxygen-rich concentration of fuel gases calorific value and combustion air in a big way separately under the condition of fluctuation even double oscillation, do not need to change burner integral body, just can reach a plurality of design conditions, realize the completing combustion of low air-fuel ratio, finally realize the energy-saving and emission-reduction purpose, thereby overcome the deficiency of existing burner.
For solving the problems of the technologies described above, a kind of bispin stream of the utility model oxygen enrichment flat-flame burner mainly is made up of air-core pipe and combustion gas core pipe, and wherein: the end of giving vent to anger of air-core pipe is fixed with air cyclone, and air outlet slit is connected with the inlet end of burner shower nozzle; The end of giving vent to anger of combustion gas core pipe is fixed with the combustion gas cyclone, and gas outlet also is connected with the inlet end of burner shower nozzle.
As a kind of improvement of the present utility model, described air-core pipe is a ring pipe, space in air enters between pipe and the outer tube, air cyclone is fixed on the inner tubal wall, and on inner tubal wall, offer the through hole corresponding with the air cyclone position, it is inner that air outlet slit is positioned at pipe, and described combustion gas core pipe is fixed on the interior pipe inside of air-core pipe.
Described combustion gas core pipe, the coaxial setting of air-core Guan Junyu burner shower nozzle.
The inlet end of described air-core pipe and combustion gas core pipe is connected with air intake pipe and fuel gas inlet pipe respectively.
Described air intake pipe is provided with the air-core pipe is vertical, fuel gas inlet pipe and vertical setting of combustion gas core pipe.
Described combustion gas cyclone by connecting rod, the combustion gas end cap is dismountable is fixed in the combustion gas core pipe.
Described connecting rod is connected by screw with the combustion gas end cap.
Also comprise the burner lower shoe, it is fixed on the burner bottom, and realizes that with burner fixing plate air outlet slit, gas outlet are connected with the burner shower nozzle by connecting the burner lower shoe.
Described burner lower shoe is connected by screw with burner fixing plate.
After adopting such structure, the utility model has the following advantages at least:
1, the utility model is a kind of bispin levelling flame burner, air and gas double eddy flow, air cyclone is to bore some circular holes or rectangle cavity in a torus upper edge tangent to periphery direction, air is tangentially sprayed cause strong swirling eddy, the combustion gas cyclone is to be welded on the connecting rod several spinning disks that have angle to form, the combustion gas mixing of the air of rotation and rotation is quickened rotation at a high speed, forms open and flat flame by the burner block that has large circular arc radius under the effect of wall attachment effect;
2, air cyclone and coal gas cyclone all can onlinely be changed, suitable coals atmospheric pressure, thermal value range are wide, burner is regulated than big, can reach 1: 10, and combustion efficiency is good, fuel gases calorific value and oxygen-rich concentration variation had very strong adjusting adaptive capacity, it is combustion-supporting to strengthen combustion gas, guarantees that fuel gas with low heat value realizes completing combustion, the raising thermal efficiency under low air coefficient of excess, fuel savings, minimizing discharge amount of exhaust gas and air pollution, energy-saving effect is remarkable;
3, energy-conserving and environment-protective of the present utility model, low nitrogen low-carbon (LC) effect are obvious, facts have proved: the every raising 0.1% of oxygen-enriched combustion-supporting, and theoretical temperature combustion improves 30 ℃, and combustion air is when reach 28%, and is energy-conservation 30%, reduces CO2 and discharges near 30%;
4, economic benefit is obvious, low-heat value gas theoretical temperature combustions such as burning blast furnace gas reach 1320 ℃, satisfy the heating furnace production requirement fully, not only save the coke-stove gas of high price, and the coke-stove gas that has displaced high heating value is for exploitation coke-stove gas chemical products or realize that hydrogen metallurgy created prerequisite;
5, can be under heating value working condition, stablize the heating furnace working condition, embody this device easily and implement oxygen-enriched combusting quantification effect, help enterprise's firm enforcement oxygen-enriched combusting confidence and power, help the promotion and application of national " Energy Management Contract " pattern of vigorously advocating, help the realization of national energy-saving and emission-reduction strategic objective.
Description of drawings
Above-mentioned only is the general introduction of technical solutions of the utility model, and for can clearer understanding technological means of the present utility model, the utility model is described in further detail below in conjunction with accompanying drawing and the specific embodiment.
Fig. 1 is the structural representation of a kind of bispin stream of the utility model oxygen enrichment flat-flame burner.
The specific embodiment
See also shown in Figure 1, a kind of bispin of the utility model stream oxygen enrichment flat-flame burner, it mainly is made up of air-core pipe 1 and combustion gas core pipe 2.Wherein, the end of giving vent to anger of air-core pipe 1 is fixed with air cyclone 11, and air outlet slit is connected with the inlet end of burner shower nozzle 3; The end of giving vent to anger of combustion gas core pipe 2 is fixed with combustion gas cyclone 21, and gas outlet also is connected with the inlet end of burner shower nozzle 3.
Preferable, as shown in the figure, air-core pipe 1 is a ring pipe, space in air enters between pipe 13 and the outer tube 14, manage on 13 walls in air cyclone 11 is fixed on, and offer the through hole 15 corresponding with air cyclone 11 positions on interior pipe 13 walls, air outlet slit is positioned at pipe 13 inside, 2 of combustion gas core pipes are fixed on interior pipe 13 inside of air-core pipe 1, and combustion gas core pipe 2, air-core pipe 1 all with the 3 coaxial settings of burner shower nozzle.
In addition, also can be connected air intake pipe 12 and fuel gas inlet pipe 22 respectively, wherein air intake pipe 12 and the 1 vertical setting of air-core pipe, fuel gas inlet pipe 22 and the 2 vertical settings of combustion gas core pipe at the inlet end of air-core pipe 1 and combustion gas core pipe 2.
In addition, also can fix a burner lower shoe 4 in the bottom of the utility model burner, connect burner lower shoe 4 and burner fixing plate 5 and fixedly connected, and realize that air outlet slit, gas outlet are connected with burner shower nozzle 3 in modes such as screws.
During work, combustion air enters air-core pipe 1 through air intake pipe 12, through combustion air cyclone 11, becomes the eddy flow combustion air, enters in the burner shower nozzle 3; Combustion gas is through fuel gas inlet pipe 22, and the combustion gas core pipe 2 that enters becomes the eddy flow combustion gas through combustion gas cyclone 21 again, sprays in the burner shower nozzle 3.The above results is: one eddy flow combustion gas and one eddy flow combustion air, in burning gallery, carry out strong mixed combustion, in addition, also can be by adjusting the combination of air cyclone 11 and combustion gas cyclone 21, the combustion air that mates different calorific values and different oxygen-enriched concentration is to realize completing combustion.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in the protection domain of the present utility model.
Claims (9)
1. a bispin stream oxygen enrichment flat-flame burner is characterized in that mainly being made up of air-core pipe and combustion gas core pipe, wherein:
The end of giving vent to anger of air-core pipe is fixed with air cyclone, and air outlet slit is connected with the inlet end of burner shower nozzle;
The end of giving vent to anger of combustion gas core pipe is fixed with the combustion gas cyclone, and gas outlet also is connected with the inlet end of burner shower nozzle.
2. a kind of bispin stream oxygen enrichment flat-flame burner according to claim 1, it is characterized in that described air-core pipe is a ring pipe, space in air enters between pipe and the outer tube, air cyclone is fixed on the inner tubal wall, and on inner tubal wall, offer the through hole corresponding with the air cyclone position, it is inner that air outlet slit is positioned at pipe, and described combustion gas core pipe is fixed on the interior pipe inside of air-core pipe.
3. a kind of bispin stream oxygen enrichment flat-flame burner according to claim 2 is characterized in that described combustion gas core pipe, the coaxial setting of air-core Guan Junyu burner shower nozzle.
4. a kind of bispin stream oxygen enrichment flat-flame burner according to claim 1 is characterized in that the inlet end of described air-core pipe and combustion gas core pipe is connected with air intake pipe and fuel gas inlet pipe respectively.
5. a kind of bispin stream oxygen enrichment flat-flame burner according to claim 4 is characterized in that described air intake pipe is provided with the air-core pipe is vertical, fuel gas inlet pipe and vertical setting of combustion gas core pipe.
6. a kind of bispin stream oxygen enrichment flat-flame burner according to claim 1, it is characterized in that described combustion gas cyclone by connecting rod, the combustion gas end cap is dismountable is fixed in the combustion gas core pipe.
7. a kind of bispin stream oxygen enrichment flat-flame burner according to claim 6 is characterized in that described connecting rod is connected by screw with the combustion gas end cap.
8. a kind of bispin stream oxygen enrichment flat-flame burner according to claim 1, it is characterized in that also comprising the burner lower shoe, it is fixed on the burner bottom, and realizes that with burner fixing plate air outlet slit, gas outlet are connected with the burner shower nozzle by connecting the burner lower shoe.
9. a kind of bispin stream oxygen enrichment flat-flame burner according to claim 8 is characterized in that described burner lower shoe is connected by screw with burner fixing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200303167U CN201944851U (en) | 2011-01-28 | 2011-01-28 | Double-cyclone oxygen-enriched flat-flame burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200303167U CN201944851U (en) | 2011-01-28 | 2011-01-28 | Double-cyclone oxygen-enriched flat-flame burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201944851U true CN201944851U (en) | 2011-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200303167U Expired - Lifetime CN201944851U (en) | 2011-01-28 | 2011-01-28 | Double-cyclone oxygen-enriched flat-flame burner |
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| CN (1) | CN201944851U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878558A (en) * | 2012-09-13 | 2013-01-16 | 四川大学 | Swirling flow premixing type burner |
| CN103175204A (en) * | 2013-03-29 | 2013-06-26 | 中冶南方(武汉)威仕工业炉有限公司 | Side wall open fire nozzle with auto-ignition and flame detection device |
| CN103277801A (en) * | 2013-04-22 | 2013-09-04 | 长兴三重窑炉科技有限公司 | Heat storage type flat flame burner |
| CN103528059A (en) * | 2013-11-12 | 2014-01-22 | 哈尔滨前程科技发展有限公司 | Multifunction substep high-oxygen combustor for industrial furnace |
| CN111649323A (en) * | 2020-06-16 | 2020-09-11 | 江苏泷涛环境技术有限公司 | Low-nitrogen type flat-flame combustor and application thereof |
| CN113091452A (en) * | 2021-04-14 | 2021-07-09 | 中冶赛迪技术研究中心有限公司 | Configuration method of combustion system of rotary hearth furnace |
-
2011
- 2011-01-28 CN CN2011200303167U patent/CN201944851U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878558A (en) * | 2012-09-13 | 2013-01-16 | 四川大学 | Swirling flow premixing type burner |
| CN102878558B (en) * | 2012-09-13 | 2015-04-08 | 四川大学 | Swirling flow premixing type burner |
| CN103175204A (en) * | 2013-03-29 | 2013-06-26 | 中冶南方(武汉)威仕工业炉有限公司 | Side wall open fire nozzle with auto-ignition and flame detection device |
| CN103277801A (en) * | 2013-04-22 | 2013-09-04 | 长兴三重窑炉科技有限公司 | Heat storage type flat flame burner |
| CN103528059A (en) * | 2013-11-12 | 2014-01-22 | 哈尔滨前程科技发展有限公司 | Multifunction substep high-oxygen combustor for industrial furnace |
| CN111649323A (en) * | 2020-06-16 | 2020-09-11 | 江苏泷涛环境技术有限公司 | Low-nitrogen type flat-flame combustor and application thereof |
| CN113091452A (en) * | 2021-04-14 | 2021-07-09 | 中冶赛迪技术研究中心有限公司 | Configuration method of combustion system of rotary hearth furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110824 |
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| CX01 | Expiry of patent term |