CN101956976A - Hot air circulating type high-speed isothermal tempering combustor - Google Patents
Hot air circulating type high-speed isothermal tempering combustor Download PDFInfo
- Publication number
- CN101956976A CN101956976A CN2010105230016A CN201010523001A CN101956976A CN 101956976 A CN101956976 A CN 101956976A CN 2010105230016 A CN2010105230016 A CN 2010105230016A CN 201010523001 A CN201010523001 A CN 201010523001A CN 101956976 A CN101956976 A CN 101956976A
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- Prior art keywords
- burner
- mixed
- pipe
- temperature
- combustion
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- 238000005496 tempering Methods 0.000 title abstract 2
- 238000002485 combustion reaction Methods 0.000 claims abstract description 46
- 239000000446 fuel Substances 0.000 claims abstract description 39
- 230000001351 cycling effect Effects 0.000 claims description 12
- 239000012774 insulation material Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910010293 ceramic material Inorganic materials 0.000 claims description 3
- 239000007769 metal material Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000007664 blowing Methods 0.000 abstract 1
- 239000011810 insulating material Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 15
- 238000010438 heat treatment Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000007921 spray Substances 0.000 description 4
- 238000012546 transfer Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention relates to a hot air circulating type high-speed isothermal tempering combustor. The combustor comprises a fuel supply pipe (1), a combustion air supply pipe (2), a mixed nozzle (3), a mixed combustion high-temperature pipe (4), a circulating hot air pipe (5), a mixed hot air pipe (6), a combustor mixed nozzle (7) and a high-temperature-resistant insulating material (8). The combustor prominent advantages that fuel can be combusted in a reasonable air-fuel ratio under the condition of the change of a load of the combustor, a temperature of gas sprayed out of the combustor at a high blowing speed is suitable for the need of a kiln, and the kiln is at an even temperature and rapid to heat so as to save fuel and improve the production efficiency of the equipment.
Description
Affiliated technical field
The present invention relates to a kind of burner that is applied to Thermal Equipments such as metallurgy, casting, anti-material, machinery, heat treatment, especially a kind of heated air circulation type high speed isothermal temperature adjustment burner.
Background technology
Metallurgical, casting, anti-material, pottery, machinery, Thermal Equipment based on fuels such as heat treatment are different with heating-up temperature, all need to be equipped with and the supporting burner of heating process requirement, particularly middle low temperature kiln, because its main heat transfer type is a heat convection, in order to improve the uniformity of heat convection and kiln temperature, must improve the air-flow spouting velocity of burner, the general high speed temperature adjustment burner that adopts, present high speed temperature adjustment burner generally adopts the mode that increases the air amount of blasting, the air capacity that just infeeds burner is the burning several times of required air capacity even tens times, to reduce the temperature of burner ejection gas, improve the spouting velocity of gas, though can satisfy the inhomogeneity requirement of heating-up temperature, owing to infeed excessive air, cause exhaust smoke level to increase greatly, the heat that flue gas is taken out of is inevitable to be increased greatly, and waste fuel reduces energy utilization rate.
Summary of the invention
The object of the present invention is to provide a kind of gas of burner ejection that makes can guarantee that temperature is suitable, can guarantee gas spouting velocity height again, and combustion stablized thermal kiln furnace burner.
Technical scheme of the present invention is achieved in that
A kind of heated air circulation type high speed isothermal temperature adjustment burner comprises fuel supply pipe 1, combustion air supply pipe 2, hybrid nozzle 3, mixed combustion high temperature pipe 4, cycling hot airduct 5, heat of mixing airduct 6, burner mixed vent 7 and high-temperature-resistant thermal-insulation material 8; Wherein cycling hot airduct 5 air intakes are communicated with Thermal Equipment inside, outlet air end is communicated with mixed combustion high temperature pipe 4 one ends, mixed combustion high temperature pipe 4 other ends bottom is provided with hybrid nozzle 3, the input of hybrid nozzle 3 links to each other with combustion air supply pipe 2 with fuel supply pipe 1, mixed combustion high temperature pipe 4 ports of export are positioned at burner mixed vent 7 inside, and burner mixed vent 7 connects and is connected with heat of mixing airduct 6; Cycling hot airduct 5 and burner mixed vent 7 enclosure are lined with high-temperature-resistant thermal-insulation material 8.
Burner of the present invention also can be done following improvement:
Mixed combustion high temperature pipe 4 is a high temperature ceramic material.
Cycling hot airduct 5 shells are metal material and flange.
Fuel supply pipe 1 and combustion air supply pipe 2 are made up of metal tube and adpting flange.
Described burner also is provided with igniter interface 9 and flame observer interface 10 on mixed combustion high temperature pipe 4.
Under different fuel types and burning condition, hybrid nozzle 3 adopts different structure and angle with mixed vent 7, and mixed combustion high temperature pipe 4 is chosen unlike material.
The invention has the beneficial effects as follows: heated air circulation type high speed isothermal temperature adjustment burner of the present invention can guarantee that fuel tolerance is strong according to different fuel design burner hybrid nozzle structures; And mixed combustion high temperature pipe 4 can be selected unlike material for use according to different fuel and service condition, can increase the practicality of burner greatly.The outstanding of this burner is also advantageous in that under the condition of burner load variations, fuel is reasonably being burnt under the air-fuel ratio condition, and the gas temperature of burner ejection is fit to the needs of kiln, the spouting velocity height, kiln temperature is even, firing rate is fast, and fuel savings can improve production efficiency of equipment.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Accompanying drawing 1 is a generalized section of the present invention;
Accompanying drawing 2 is vertical views of the present invention.
Among the figure, fuel supply pipe 1, combustion air supply pipe 2, hybrid nozzle 3, mixed combustion high temperature pipe 4, cycling hot airduct 5, heat of mixing airduct 6, burner mixed vent 7, high-temperature-resistant thermal-insulation material 8, igniter interface 9, flame observer interface 10.
The specific embodiment
Below, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.Need to prove before this, employed term or word can not limited interpretation be common implication or the implication in the dictionary in this specification and claims book, and should be based in order to illustrate that in the best way principle that its invention inventor can suitably define the notion of term is interpreted as meeting the implication and the notion of the technology of the present invention thought.Thereupon, the structure of representing in embodiment that this specification is put down in writing and the accompanying drawing is one of most preferred embodiment of the present invention, can not represent technological thought of the present invention fully, therefore should be understood that to have various equivalents and the variation that to replace for the present invention.
As shown in Figure 1, this burner is made up of fuel supply pipe 1, combustion air supply pipe 2, hybrid nozzle 3, mixed combustion high temperature pipe 4, cycling hot airduct 5, heat of mixing airduct 6, burner mixed vent 7 and high-temperature-resistant thermal-insulation material 8.The supply of fuel and combustion air designs in strict accordance with the theory of combustion, make fuel and combustion air based on fuel kind in mixed combustion high temperature pipe 4 under the rational proportion condition, fill part a mixing and a completing combustion, and circulating air enters burner from cycling hot airduct 5, comprise mixed combustion high temperature pipe 4, high temperature circulation gas mixes with high-temperature combustion gas, and mixed gas sprays from burner mixed vent high speed.The fuel supply pipe 1 of this burner, combustion air supply pipe 2 is made up of general metal tube and adpting flange, mixed combustion high temperature pipe 4 is a high temperature ceramic material, cycling hot airduct 5 shells are metal material and flange, metal shell inside is lined with resistant to elevated temperatures insulation material, burner mixed vent 7 can be according to requirement design different structure and the angle of Thermal Equipment to air-flow, inner lining high-temperature-resistant thermal-insulation material 8, insulation material is selected according to the service condition and the temperature of burner, this high-temperature-resistant thermal-insulation material 8 is the heatproof height not only, and require the hot blast of anti-the high speed to wash away, good heat insulating.
As shown in Figure 2, in order to satisfy the needs of control automatically, this burner design has igniter interface 9, flame observer interface 10.
The outstanding feature of this burner is the mode of mixing with gas circulation in the kiln by combustion high temperature gas, reaches the effect of high speed temperature adjustment.
The outstanding feature of this burner is can fill part to utilize the interior hot gas of kiln, at fuel and combustion air under the situation with rational proportion completing combustion, by the high temperature circulation airduct, regulate burner and spray into the interior mist temperature of kiln, can satisfy the temperature requirement of heating process, can can improve energy utilization rate greatly in completing combustion under the rational air-fuel ratio condition again, reduce the heat that toxic emission is taken.
Another outstanding feature of this burner is, when ignition temperature is very high, and heating process by sneaking into the high-temperature gas in the kiln, can significantly reduce firing rate when requiring temperature low, satisfies to add heat request, fuel savings consumption.
Another outstanding feature of this burner is, the temperature that needs when Thermal Equipment is low, and fuel is when burning under reasonable air-fuel ratio condition, pass through circulating air, improve the temperature that burner sprays into hot gas greatly, the air-flow that can strengthen in the Thermal Equipment stirs, and improves the temperature homogeneity of Thermal Equipment, improve the heating quality of goods, improve the qualification rate of goods.
This burner can also be according to the requirement of Thermal Equipment to air-flow, and the spout structure of flexible design burner satisfies the requirement of different Thermal Equipment heating processes.
This burner is suitable for the needs of the various Thermal Equipments of multiple industry,
This burner is because under any temperature, the speed of hot gasses of its ejection is very high, can improve heat convection speed greatly, improve heat transfer efficiency, can enhance productivity, help the miniaturization of Thermal Equipment, or the Thermal Equipment of equal specification can improve output.
This burner in use, the supporting use of high temperature circulation blower fan that should be close, better effects if with the heating-up temperature of designed Thermal Equipment.
This burner, sprays in the Thermal Equipment at a high speed with the temperature of arts demand with after the fuel combustion high-temperature gas mixes by circulating air in use.The effective high-temperature blower air feed of circulating air.Its hot blast is generally extracted out in Thermal Equipment.
Burner of the present invention can be guaranteed the structure according to different fuel design burners, can both stablize the requirement of reasonable completing combustion.
Burner key technology of the present invention is fuel mix and burns in the high temperature mixing tube, and recyclegas is to mix with high-temperature combustion gas after fuel burns fully substantially, thereby satisfies combustion stablized requirement.
The key technology of burner of the present invention is to have increased the high-temperature-resistant thermal-insulation material in mixing tube and the burner spout, thereby has prolonged the service life of burner, has reduced cost.
Burner of the present invention is compared with other burners, its difference is the high-temperature gas of burner fuel burning, before the ejection burner, mix earlier with the high-temperature gas of in kiln, extracting out, thereby reach temperature adjustment, at a high speed, the requirement of isothermal, fuel savings improves temperature homogeneity and heat transfer rate greatly.
It should be noted that, although the present invention is described and illustrates with reference to the specific embodiment, but and do not mean that the present invention is limited to the embodiment of these descriptions, those skilled in the art can therefrom derive many different variants, and they all will be covered in the true spirit and scope of claim of the present invention.
Embodiments of the invention have preferable implementation, and be not that the present invention is done any type of restriction, any person skilled in art of being familiar with may utilize the technology contents change of above-mentioned announcement or be modified to the effective embodiment that is equal to, in every case the content that does not break away from technical solution of the present invention,, all still belong in the scope of technical solution of the present invention any modification or equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (9)
1. heated air circulation type high speed isothermal temperature adjustment burner, it is characterized in that: this burner comprises fuel supply pipe (1), combustion air supply pipe (2), hybrid nozzle (3), mixed combustion high temperature pipe (4), cycling hot airduct (5), heat of mixing airduct (6), burner mixed vent (7) and high-temperature-resistant thermal-insulation material (8); Wherein cycling hot airduct (5) air intake is communicated with Thermal Equipment inside, outlet air end is communicated with mixed combustion high temperature pipe (4) one ends, mixed combustion high temperature pipe (4) other end bottom is provided with hybrid nozzle (3), the input of hybrid nozzle (3) links to each other with combustion air supply pipe (2) with fuel supply pipe (1), mixed combustion high temperature pipe (4) port of export is positioned at burner mixed vent (7) inside, and burner mixed vent (7) connects and is connected with heat of mixing airduct (6); Cycling hot airduct (5) and burner mixed vent (7) enclosure are lined with high-temperature-resistant thermal-insulation material (8).
2. heated air circulation type high speed isothermal temperature adjustment burner according to claim 1, it is characterized in that: described mixed combustion high temperature pipe (4) is a high temperature ceramic material.
3. heated air circulation type high speed isothermal temperature adjustment burner according to claim 1 and 2, it is characterized in that: described cycling hot airduct (5) shell is metal material and flange.
4. heated air circulation type high speed isothermal temperature adjustment burner according to claim 1 and 2, it is characterized in that: described fuel supply pipe (1) and combustion air supply pipe (2) are made up of metal tube and adpting flange.
5. heated air circulation type high speed isothermal temperature adjustment burner according to claim 3, it is characterized in that: described fuel supply pipe (1) and combustion air supply pipe (2) are made up of metal tube and adpting flange.
6. according to claim 1 or 2 or 5 described heated air circulation type high speed isothermal temperature adjustment burners, it is characterized in that: described burner also is provided with igniter interface (9) and flame observer interface (10) on mixed combustion high temperature pipe (4).
7. heated air circulation type high speed isothermal temperature adjustment burner according to claim 3, it is characterized in that: described burner also is provided with igniter interface (9) and flame observer interface (10) on mixed combustion high temperature pipe (4).
8. heated air circulation type high speed isothermal temperature adjustment burner according to claim 4, it is characterized in that: described burner also is provided with igniter interface (9) and flame observer interface (10) on mixed combustion high temperature pipe (4).
9. according to claim 1 or 2 or 5 or 7 or 8 described heated air circulation type high speed isothermal temperature adjustment burners, it is characterized in that: described hybrid nozzle (3) and mixed vent (7) adopt different structure and angle under different fuel types and burning condition, described mixed combustion high temperature pipe (4) is chosen unlike material under different fuel types and burning condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010523001 CN101956976B (en) | 2010-06-09 | 2010-10-28 | Hot air circulating type high-speed isothermal tempering combustor |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020219870 | 2010-06-09 | ||
| CN201020219870.5 | 2010-06-09 | ||
| CN 201010523001 CN101956976B (en) | 2010-06-09 | 2010-10-28 | Hot air circulating type high-speed isothermal tempering combustor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101956976A true CN101956976A (en) | 2011-01-26 |
| CN101956976B CN101956976B (en) | 2013-05-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010523001 Expired - Fee Related CN101956976B (en) | 2010-06-09 | 2010-10-28 | Hot air circulating type high-speed isothermal tempering combustor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101956976B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2107591U (en) * | 1991-11-07 | 1992-06-17 | 鞍山钢铁公司 | Automatic flame adjustable burner |
| US5203690A (en) * | 1988-07-08 | 1993-04-20 | Nippon Chemical Plant Consultant Co., Ltd. | Combustion apparatus |
| DE19920113A1 (en) * | 1999-05-03 | 2000-11-09 | Kromschroeder Ag G | Method and device for heating up a furnace zone containing contaminated waste gases with residual oxygen content applies hot gases generated by fuel combustion to the waste gases |
| CA2391757A1 (en) * | 2002-06-26 | 2003-01-26 | Per Westergaard | Burner fuel mixer head for concurrently burning two gaseous fuels |
| CN2620180Y (en) * | 2003-05-16 | 2004-06-09 | 管志平 | Controllable hot dirty gas burner |
| CN2811761Y (en) * | 2005-07-12 | 2006-08-30 | 鞍山钢铁集团公司 | Pulverized coal drying agent generator |
| US20090104109A1 (en) * | 2007-10-22 | 2009-04-23 | Japan Hydrogen Co. Ltd. | Method of reforming hydrocarbon by oxyhydrogen flame using three-tube burner |
-
2010
- 2010-10-28 CN CN 201010523001 patent/CN101956976B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5203690A (en) * | 1988-07-08 | 1993-04-20 | Nippon Chemical Plant Consultant Co., Ltd. | Combustion apparatus |
| CN2107591U (en) * | 1991-11-07 | 1992-06-17 | 鞍山钢铁公司 | Automatic flame adjustable burner |
| DE19920113A1 (en) * | 1999-05-03 | 2000-11-09 | Kromschroeder Ag G | Method and device for heating up a furnace zone containing contaminated waste gases with residual oxygen content applies hot gases generated by fuel combustion to the waste gases |
| CA2391757A1 (en) * | 2002-06-26 | 2003-01-26 | Per Westergaard | Burner fuel mixer head for concurrently burning two gaseous fuels |
| CN2620180Y (en) * | 2003-05-16 | 2004-06-09 | 管志平 | Controllable hot dirty gas burner |
| CN2811761Y (en) * | 2005-07-12 | 2006-08-30 | 鞍山钢铁集团公司 | Pulverized coal drying agent generator |
| US20090104109A1 (en) * | 2007-10-22 | 2009-04-23 | Japan Hydrogen Co. Ltd. | Method of reforming hydrocarbon by oxyhydrogen flame using three-tube burner |
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| Publication number | Publication date |
|---|---|
| CN101956976B (en) | 2013-05-15 |
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Granted publication date: 20130515 |
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