CN201983269U - Pre-combustion burner - Google Patents
Pre-combustion burner Download PDFInfo
- Publication number
- CN201983269U CN201983269U CN2011200290256U CN201120029025U CN201983269U CN 201983269 U CN201983269 U CN 201983269U CN 2011200290256 U CN2011200290256 U CN 2011200290256U CN 201120029025 U CN201120029025 U CN 201120029025U CN 201983269 U CN201983269 U CN 201983269U
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- China
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- combustion
- air
- supporting
- nozzle
- combustion barrel
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Abstract
The utility model relates to a pre-combustion burner, comprising a fuel connection pipe, a nozzle, an ignition hole and a burner brick. A pre-combustion chamber, namely a combustion cylinder, is arranged between the nozzle and the burner brick, and an air chamber is arranged outside the combustion cylinder, wherein the combustion of fuel in the combustion cylinder is supported by air entering from an air inlet above the air chamber at three stages which comprise a swirler for supporting combustion through mixing by swirling air, an air inlet hole on the combustion cylinder for supporting combustion by direct air flow and an annular gap arranged between the air chamber and the combustion cylinder for supporting combustion by tangent air; and the three-stage-combustion-supporting air synchronously cools the outside of the combustion cylinder. By adding a pre-combustion chamber in the nozzle, the fuel is partly combusted in the pre-combustion chamber; the combustion-supporting air is supplied in three times; the secondly and thirdly supplied air can also reduce temperature besides combustion supporting; nonuniform speed field, temperature field and concentration field are formed in the pre-combustion chamber by the combustion-supporting air, and circumfluence is formed at the periphery and reflux is formed at the centre. The pre-combustion burner has the advantages of generating half flame-free torch, high speed, large rigidity, energy saving and yield improvement.
Description
Technical field
The utility model relates to the combustion apparatus of industrial furnace cellar for storing things usefulness, refers in particular to a kind of preheating type burner.
Background technology
At present still do not have a kind of burner can satisfy all performance requirements, but the burner of a function admirable should satisfy performance requirement as much as possible.Burner is the key equipment of industrial furnace, and its performance has influence on the civilization degree of output, quality, energy consumption, environmental protection and the production of industrial furnace fatefully.The burner of a function admirable can be high yield, high-quality, low consumption, the of low pollution of industrial furnace and the creation prerequisite of carrying out production strictly in line with rules and regulations.Burner of a great variety, this mainly because different fuel type, calorific value size, performance requirements cause.
Summary of the invention
The purpose of this utility model is improved and is innovated at the shortcoming that exists in the background technology and problem, a kind of function admirable is provided, but using gases, liquid and solid fuel, has a precombustion chamber that combustion intensity is higher, make half gasification of liquid or solid fuel, it is complete to resemble the coal gas easy burning, and has that the black furnace ignition performance is good, flameholding, improves efficiency of combustion, regulates the preheating type burner than, thermoregulation range.
A kind of burner that comprises fuel adapter, nozzle, fire hole and burner block of the utility model structure, it is combustion barrel that a precombustion chamber is set between its nozzle and the burner block, the combustion barrel outside is provided with air compartment, wherein:
The air that enters by the air inlet that is arranged on air compartment top to fuel in the combustion barrel divide three grades combustion-supporting, comprise that promptly being made as eddy flow wind mixes combustion-supporting cyclone, is made as the air admission hole on the combustion-supporting combustion barrel of direct current wind and is made as combustion-supporting air compartment of tangential wind and the circumferential weld between the combustion barrel, and three grades of combustion airs cool to the combustion barrel outside synchronously.
Advantage of the present utility model and beneficial effect:
The utility model increases a pre-right chamber in burner, fuel carries out partial combustion interior, combustion air divides air feed three times, secondary, three air feeds also can play cooling effect except that combustion-supporting, combustion air forms uneven velocity field temperature field and concentration field in precombustion chamber, the center has to reflux circulation all around.Produce half nonflame torch, the high rigidity of its speed is big, strengthens the circulation of furnace gas, increases the convection heat transfer' heat-transfer by convection amount, and wind and secondary wind all can be preheated to the high temperature energy savings, improve output.
Description of drawings
Fig. 1 is the utility model combustion gas, fuel oil type dual burner structural representation.
Fig. 2 is the utility model combustion type burner structure schematic diagram.
The specific embodiment
By accompanying drawing 1,2 as can be known, the utility model comprises fuel adapter 1, nozzle 4, fire hole 3 and burner block 8, and it is combustion barrel 7 that a precombustion chamber is set between its nozzle 4 and the burner block 8, and combustion barrel 7 outsides are provided with air compartment 6, wherein:
The air that enters by the air inlet 9 that is arranged on air compartment 6 tops to fuel in the combustion barrel 7 divide three grades combustion-supporting, comprise that promptly being made as eddy flow wind mixes combustion-supporting cyclone 5, is made as the air admission hole on the combustion-supporting combustion barrel of direct current wind 7 and is made as circumferential weld between tangential wind combustion-supporting air compartment 6 and the combustion barrel 7, and three grades of combustion airs cool to combustion barrel 7 outsides synchronously.
Cyclone 5 described in the utility model is arranged on the outside of nozzle 4 and combustion barrel 7.Between described fuel adapter 1 and the nozzle 4 connecting pipe or coal gas rifle or oil gun 11 are set, connecting pipe is provided with Alevaire inlet 2.Described fire hole 3 one ends are connected on the combustion barrel 7, and the other end stretches out outside the air compartment 6.Be provided with the circular passage between described air compartment 6 and the combustion barrel 7.
Structural principle of the present utility model:
The utility model can using gases, liquid, solid, and it is to maximize favourable factors and minimize unfavourable ones on the basis of high velocity burner and a kind of novel burner of development to some extent.It has a precombustion chamber that combustion intensity is higher, carries out the fuel combustion of part therein, and it is complete to make half gasification of solid, liquid resemble the coal gas easy burning, can improve efficiency of combustion, reduces the temperature of precombustion chamber simultaneously, solves high temperature resistant furnace lining problem.It is combustion-supporting to be divided into eddy flow wind, tangential wind and direct current wind with air, carries out the classification air feed, step by step burning.And combustion intensity is high and the NOx growing amount reduces, and the pressure of air and fuel is low and adopt sectional combustion that noise reduction and pollution are reduced.Also annular deduster can be set in the exit, when using fine coal, can remove the part dust, reduce dust emission concentration, help environmental protection.
Operation principle of the present utility model:
Combustion air enters air compartment from airduct, is divided into three strands of air then, and primary air flows into cyclone and enters in the combustion barrel, forms the recirculating zone of a retention flame there, and with fuel mix, burning from the nozzle ejection, form the flue gas of uniform temperature; Auxiliary air enters in the tube by the air admission hole on the combustion barrel, and promptly the cooling combustion tube further burns with fuel again; Tertiary air flows through from the circular passage between air compartment and combustion barrel, behind the cooling combustion tube outer surface, in circumferential weld flows into burner block, looks different the purposes of burner, or plays combustion-supporting effect again, or play the blending cooling effect, to reach the burner exit gas temperature of expection.
Embodiment described in the utility model only is the description that preferred implementation of the present utility model is carried out; be not that the utility model design and scope are limited; under the prerequisite that does not break away from the utility model design philosophy; engineers and technicians make the technical solution of the utility model in this area various modification and improvement; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.
Claims (5)
1. preheating type burner, comprise fuel adapter (1), nozzle (4), fire hole (3) and burner block (8), it is characterized in that it is combustion barrel (7) that a precombustion chamber is set between nozzle (4) and the burner block (8), combustion barrel (7) outside is provided with air compartment (6), wherein:
The air that enters by the air inlet (9) that is arranged on air compartment (6) top to the interior fuel of combustion barrel (7) divide three grades combustion-supporting, promptly comprise be made as eddy flow wind mix combustion-supporting cyclone (5), be made as the air admission hole on the combustion-supporting combustion barrel of direct current wind (7) and be made as the combustion-supporting air compartment of tangential wind (6) and combustion barrel (7) between circumferential weld, and three grades of combustion airs cool to combustion barrel (7) outside synchronously.
2. preheating type burner according to claim 1 is characterized in that described cyclone (5) is arranged on the outside of nozzle (4) and combustion barrel (7).
3. preheating type burner according to claim 1 is characterized in that between described fuel adapter (1) and the nozzle (4) connecting pipe and coal gas rifle or oil gun (11) being set, and connecting pipe is provided with Alevaire inlet (2).
4. preheating type burner according to claim 1 is characterized in that described fire hole (3) one ends are connected on the combustion barrel (7), and the other end stretches out outside the air compartment (6).
5. preheating type burner according to claim 1 is characterized in that being provided with the circular passage between described air compartment (6) and the combustion barrel (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200290256U CN201983269U (en) | 2011-01-28 | 2011-01-28 | Pre-combustion burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200290256U CN201983269U (en) | 2011-01-28 | 2011-01-28 | Pre-combustion burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201983269U true CN201983269U (en) | 2011-09-21 |
Family
ID=44610728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200290256U Expired - Fee Related CN201983269U (en) | 2011-01-28 | 2011-01-28 | Pre-combustion burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201983269U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128453A (en) * | 2011-01-28 | 2011-07-20 | 岳阳科德科技有限责任公司 | Pre-combustion burner |
| CN106895408A (en) * | 2017-03-22 | 2017-06-27 | 黄玉河 | The low NO of multi fuelxBurner |
| CN108386835A (en) * | 2018-03-30 | 2018-08-10 | 四川雷鸣环保装备有限公司 | Cyclone type gas combustion apparatus |
-
2011
- 2011-01-28 CN CN2011200290256U patent/CN201983269U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128453A (en) * | 2011-01-28 | 2011-07-20 | 岳阳科德科技有限责任公司 | Pre-combustion burner |
| CN106895408A (en) * | 2017-03-22 | 2017-06-27 | 黄玉河 | The low NO of multi fuelxBurner |
| CN106895408B (en) * | 2017-03-22 | 2023-12-22 | 黄玉河 | Multi-fuel low NO x Burner with a burner body |
| CN108386835A (en) * | 2018-03-30 | 2018-08-10 | 四川雷鸣环保装备有限公司 | Cyclone type gas combustion apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20160128 |
|
| EXPY | Termination of patent right or utility model |