CN101956976B - Hot air circulating type high-speed isothermal tempering combustor - Google Patents
Hot air circulating type high-speed isothermal tempering combustor Download PDFInfo
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- CN101956976B CN101956976B CN 201010523001 CN201010523001A CN101956976B CN 101956976 B CN101956976 B CN 101956976B CN 201010523001 CN201010523001 CN 201010523001 CN 201010523001 A CN201010523001 A CN 201010523001A CN 101956976 B CN101956976 B CN 101956976B
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- temperature
- burner
- mixed
- hot air
- combustor
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- 238000005496 tempering Methods 0.000 title claims abstract description 14
- 238000002485 combustion reaction Methods 0.000 claims abstract description 45
- 239000000446 fuel Substances 0.000 claims abstract description 37
- 230000001351 cycling effect Effects 0.000 claims description 12
- 239000012774 insulation material Substances 0.000 claims description 11
- 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
- 230000008859 change Effects 0.000 abstract description 2
- 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
- 239000000463 material Substances 0.000 description 4
- 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
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 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
- 230000006872 improvement Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003595 mist Substances 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 the Thermal Equipments such as metallurgy, casting, anti-material, machinery, heat treatment, especially a kind of hot air circulating type high-speed isothermal tempering combustor.
Background technology
metallurgical, casting, anti-material, pottery, machinery, the Thermal Equipment based on fuels such as heat treatment are different with heating-up temperature, all need to be equipped with the burner supporting with the heating process requirement, middle low temperature kiln particularly, because its main heat transfer type is 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 namely feeds burner is even tens times of the several times of the required air capacity of burning, to reduce the temperature of burner ejection gas, improve the spouting velocity of gas, although can satisfy the inhomogeneity requirement of heating-up temperature, but, owing to feeding excessive air, cause exhaust smoke level greatly to increase, the heat that flue gas is taken out of is inevitable to be increased greatly, waste fuel, reduce 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 that again the gas spouting velocity is high, and combustion stablized thermal kiln furnace burner.
Technical scheme of the present invention is achieved in that
A kind of hot air circulating type high-speed isothermal tempering combustor 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 connection Thermal Equipments are inner, outlet air end is communicated with mixed combustion high-temperature pipe 4 one ends, be provided with hybrid nozzle 3 bottom mixed combustion high-temperature pipe 4 other ends, the input of hybrid nozzle 3 is connected 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 is connected connection with heat of mixing airduct; 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 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 comprised 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: hot air circulating type high-speed isothermal tempering combustor 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 according to different fuel and service condition, can greatly increase the practicality of burner.The outstanding advantages of this burner also is 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, spouting velocity is high, 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 generalized section of the present invention;
Accompanying drawing 2 is top views of the present invention.
In 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, the term that uses in this specification and claims book or word can not limited interpretation be the implication in common implication or dictionary, and should be based in order to illustrate that in the best way its invention inventor can be interpreted as meeting to the principle that the concept of term be carried out suitably definition implication and the concept of the technology of the present invention thought.Thereupon, the structure that represents in the embodiment that this specification is put down in writing and 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 for the present invention various equivalents and the variation that can replace.
As shown in Figure 1, this burner is comprised 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 reasonably fill part mixing and a completing combustion under the ratio condition in the interior based on fuel kind of mixed combustion high-temperature pipe 4, 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 comprised of general metal tube and adpting flange, mixed combustion high-temperature pipe 4 is 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 service condition and the temperature of burner, not only heatproof is high for this high-temperature-resistant thermal-insulation material 8, 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 automatically controlling, 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 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, in the situation that fuel and combustion air are with rational ratio 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 greatly improve energy utilization rate in completing combustion under 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 kiln, can greatly 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, greatly improve the temperature that burner sprays into hot gas, the air-flow that can strengthen in 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.
The needs of the applicable various Thermal Equipments of multiple industry of this burner,
This burner is due at any temperature, and the speed of hot gasses of its ejection is very high, can greatly improve heat convection speed, improve heat transfer efficiency, can enhance productivity, be conducive to the miniaturization of Thermal Equipment, or can improve output with the Thermal Equipment of equal-specification.
This burner in use, the high temperature circulation matched with blower that should be close with the heating-up temperature of designed Thermal Equipment uses, better effects if.
This burner in use, with after the fuel combustion high-temperature gas mixes, the temperature that needs with technique sprays in Thermal Equipment at a high speed by circulating air.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 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 burner spout, thereby has extended 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, first mix with the high-temperature gas of extracting out in kiln before the ejection burner, thereby reach temperature adjustment, at a high speed, the requirement of isothermal, fuel savings, improve 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 better 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 do not break away from the content of 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 does according to technical spirit of the present invention.
Claims (8)
1. hot air circulating type high-speed isothermal tempering combustor, 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 connection Thermal Equipment is inner, 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) is connected 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) is connected 6 with heat of mixing airduct) connect; Cycling hot airduct (5) and burner mixed vent (7) enclosure are lined with high-temperature-resistant thermal-insulation material (8).
2. hot air circulating type high-speed isothermal tempering combustor according to claim 1, it is characterized in that: described mixed combustion high-temperature pipe (4) is high temperature ceramic material.
3. hot air circulating type high-speed isothermal tempering combustor according to claim 1 and 2, it is characterized in that: described cycling hot airduct (5) shell is metal material and flange.
4. hot air circulating type high-speed isothermal tempering combustor according to claim 1 and 2, it is characterized in that: described fuel supply pipe (1) and combustion air supply pipe (2) are comprised of metal tube and adpting flange.
5. hot air circulating type high-speed isothermal tempering combustor according to claim 3, it is characterized in that: described fuel supply pipe (1) and combustion air supply pipe (2) are comprised of metal tube and adpting flange.
6. according to claim 1 and 2 or 5 described hot air circulating type high-speed isothermal tempering combustors, 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. hot air circulating type high-speed isothermal tempering combustor 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. hot air circulating type high-speed isothermal tempering combustor 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).
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 CN101956976A (en) | 2011-01-26 |
| CN101956976B true CN101956976B (en) | 2013-05-15 |
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| 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 |
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Citations (6)
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009102184A (en) * | 2007-10-22 | 2009-05-14 | Nippon Suiso Kk | 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 (6)
| 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 |
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| Publication number | Publication date |
|---|---|
| CN101956976A (en) | 2011-01-26 |
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