CN205351318U - Air classification hangs down NOx gas burner with adjustable whirl intensity - Google Patents
Air classification hangs down NOx gas burner with adjustable whirl intensity Download PDFInfo
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- CN205351318U CN205351318U CN201520967137.4U CN201520967137U CN205351318U CN 205351318 U CN205351318 U CN 205351318U CN 201520967137 U CN201520967137 U CN 201520967137U CN 205351318 U CN205351318 U CN 205351318U
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Abstract
The utility model provides an adjustable air classification of whirl intensity hangs down NOX gas burner, and it is equipped with the entry wind channel above bellows, bellows one side is equipped with the burner block, and the burner block center is the air runner, inside bellows, air runner center department is equipped with the integral type combustor, the integral type combustor include altar lamp and gas burner, outwards arrange once wind adjusting part, overgrate air adjusting part and border wind pore in proper order with one heart along integral type combustor periphery ab intra, it is combustion -supporting distinguished and admirable through the entry wind channel, get into bellows, then shunt into wind, overgrate air and border wind three -strand one time, wherein, a wind passes through the air runner of a wind adjustment mechanism entering burner block, and the overgrate air gets into the air runner through overgrate air adjustment mechanism, and border wind gets into furnace through border wind pore. The utility model discloses the combustor adopts the tertiary wind form of transferring, forms the axial fractional combustion, and NOX discharges among the reduction combustion processes.
Description
Technical field
This utility model relates to the gas burner being suitable for processing high heating value combustion gas or waste gas, is specifically related to a kind of swirl strength low NO of adjustable air classificationXGas burner.
Background technology
Burner is the core component of industrial furnace, the NO that its burning producesXIt is the major pollutants of air, environment and harm is serious.Along with people to environment and healthy growing interest, the promulgation of " GB13271-2014 emission standard of air pollutants for boilers ", " GB31571-2015 petro chemical industry pollutant emission standard " or enforcement, traditional single-stage horizontal flow burner cannot meet requirement.In order to reduce NOXDischarge, it is necessary to design low NOXBurner.
At present, frequently with low NOXCombustion technology mainly has three kinds.First, air classification technology, make combustion air be further separated into burner hearth, set up the first combustion zone of oxygen deprivation, fuel, under oxygen lean conditions, produces CO, H2Deng reducibility gas, it is suppressed that NOXGeneration, pass into excess air in the second combustion zone, make complete combustion of fuel, thus controlling the NO of whole combustion processXGrowing amount.Second, fuel staging techniques, pass into part of fuel in the first combustion zone, the second combustion zone or the 3rd combustion zone pass into residual fuel successively, making fuel be evenly distributed in whole combustion zone as far as possible, reducing flame peak temperature, thus reducing thermal NOXGrowing amount.3rd, flue gas recirculating technique, utilize combustion air, fuel high-speed jet to produce low-pressure area, or make flue gas recirculation arrive flame zone by external force, namely reduce the peak temperature of flame, reduce again the partial pressure of oxygen of combustion zone, thus reducing NOXGenerate.
Summary of the invention
The purpose of this utility model is to provide a kind of adjustable air classification gas burner of swirl strength, it is possible not only to meet environmental requirement, and can regulate flame profile, length and rigidity by adjustment First air, the air quantity of border wind and the swirl strength of secondary wind.
Realize the technical scheme of this utility model purpose: a kind of swirl strength low NO of adjustable air classificationXGas burner, it includes bellows, is arranged over inlet conduits at bellows；Bellows side is provided with burner block, and burner block center is air flow channel；It is provided with integral combustor in inner bellows, air flow channel center；Described integral combustor includes altar lamp and gas burner；Arranged concentric once wind adjusting part, secondary air regulation assembly and air holes road, border successively from inside to outside along integral combustor periphery；Combustion air flows through inlet conduits, enters bellows, is then tapped off into First air, secondary wind and border wind three strands；Wherein, First air enters the air flow channel of burner block by First air adjusting part, and secondary wind enters air flow channel through secondary air regulation assembly, and border wind enters burner hearth through air holes road, border.
A kind of swirl strength low NO of adjustable air classification as aboveXGas burner, its described First air adjusting part includes First air linkage, fixing air duct and movable air duct；Wherein, movable air duct is arranged in outside fixing air duct and First air linkage is fixedly linked, and pulls movable air duct mobile in the peripheral circumference of fixing air duct by First air linkage, thus changing direct current First air air quantity；Uniform 4～6 perforates on described fixing air duct and movable air duct.
A kind of swirl strength low NO of adjustable air classification as aboveXGas burner, its described secondary air regulation assembly includes pull bar between outer end plate, blade, tangential swirl blade, inner end plate and secondary wind linkage；Wherein, tangential swirl blade) it is distributed between outer end plate and inner end plate, and between blade, pull bar and secondary wind linkage are fixedly linked, and are regulated the anglec of rotation of tangential swirl blade by secondary wind linkage, change its relative position, thus changing swirl strength and the air quantity of secondary wind；Described tangential swirl blade generally comprises 6～16.
A kind of swirl strength low NO of adjustable air classification as aboveXGas burner, its described burner block has 8～20 border air holes roads axially in parallel with center air runner, and opening cross-sectional area is circular, oval or square.
A kind of swirl strength low NO of adjustable air classification as aboveXGas burner, its described burner block outlet has necessarily expands angle, and expanding angle range is 15 °～30 °.
A kind of swirl strength low NO of adjustable air classification as aboveXGas burner, its described altar lamp is controlling down-firing manually or automatically.
A kind of swirl strength low NO of adjustable air classification as aboveXGas burner, its described bellows are provided with flame detector and flame-observing hole.
Effect of the present utility model is in that: a kind of swirl strength low NO of adjustable air classification described in the utility modelXGas burner, three grades are adopted to adjust wind form, in operation, rigidity and the stability of main combustion flame is changed by regulating First air, the spin intensity of burner outlet combustion air is changed by regulating secondary wind, controlling the size of the high temperature recirculation zone formed in combustion process, direct current border wind one is that two promote unburned fuel to burn completely in order to attract high ambient temperatures smoke backflow.Burner adopts three grades to adjust wind forms, by controlling the ratio of primary and secondary air and border wind, regulate high temperature recirculation zone start position and recirculating zone axial length, and form axially staged burning, reduce NO in combustion processXDischarge.
Accompanying drawing explanation
Fig. 1 is a kind of swirl strength low NO of adjustable air classification described in the utility modelXGas burner front view.
Fig. 2 is the front view of burner governor motion.
Fig. 3 is the schematic diagram of burner secondary air regulation assembly.
Fig. 4 is the schematic diagram of burner secondary air regulation assembly.
In figure: 1. inlet conduits；2. bellows；3. flame detector；5. integral combustor；6. First air adjusting part；8. flame-observing hole；9. secondary air regulation assembly；10. burner block；11. air flow channel；12. air holes road, border；13. outer end plate；14. pull bar between blade；15. tangential swirl blade；16. inner end plate；17. First air linkage；18. fixing air duct；19. movable air duct；20. secondary wind linkage.
Wherein: θ is the burner block angle of flare；α is the tangential swirl blade anglec of rotation.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments to a kind of swirl strength low NO of adjustable air classification described in the utility modelXGas burner is further described.
As it is shown in figure 1, a kind of swirl strength low NO of adjustable air classification described in the utility modelXGas burner, it includes bellows 2, is arranged over inlet conduits 1 at bellows 2；Bellows 2 side is provided with burner block 10, and burner block 10 center is air flow channel 11；Inside bellows 2, air flow channel 11 center be provided with integral combustor 5.Described integral combustor 5 includes altar lamp and gas burner；Described altar lamp is controlling down-firing manually or automatically, and after pilot gas burner, altar lamp can burn away, or after extinguishing, only logical cooling air cools down.Bellows 2 are additionally provided with flame detector 3 and flame-observing hole 8.
Arranged concentric once wind adjusting part 6, secondary air regulation assembly 9 and air holes road, border 12 successively from inside to outside along integral combustor 5 periphery；Combustion air flows through inlet conduits 1, enters bellows 2, is then tapped off into First air, secondary wind and border wind three strands.Wherein, First air enters the air flow channel 11 of burner block 10 by First air adjusting part 6, is mixed to form once fuel-rich combustion zone with fuel gas；Secondary wind forms high intensity Whirl deposite tank through secondary air regulation assembly 9, and in air flow channel 11, the fuel-rich flue gas with primary combustion mixes, and forms secondary combustion with meagre oxygen district；Border wind enters burner hearth through air holes road, border 12, mixes with remaining fuel and high-temperature flue gas outside intermediate zone, completes whole burning, forms three combustion zones.
As in figure 2 it is shown, described First air adjusting part 6 includes First air linkage 17, fixing air duct 18 and movable air duct 19；Wherein, movable air duct 19 is arranged in outside fixing air duct 18 and First air linkage 17 is fixedly linked, and pulls movable air duct 19 mobile in the peripheral circumference of fixing air duct 18 by First air linkage 17, thus changing direct current First air air quantity；First air air quantity typically constitutes from the 10%～20% of total blast volume, and direct current First air acts primarily as the surely combustion effect of root flame.Uniform 4～6 perforates (such as 4,5 or 6) on described fixing air duct 18 and movable air duct 19.
As shown in Figures 2 to 4, described secondary air regulation assembly 9 includes pull bar 14 between outer end plate 13, blade, tangential swirl blade 15, inner end plate 16 and secondary wind linkage 20；Wherein, tangential swirl blade 15 is distributed between outer end plate 13 and inner end plate 16, and pull bar 14 and secondary wind linkage 20 are fixedly linked between blade, the anglec of rotation of tangential swirl blade 15 is regulated by secondary wind linkage 20, change its relative position, thus changing swirl strength and the air quantity of secondary wind；Described tangential swirl blade 15 generally comprises 6～16 (such as 6,10 or 16)., the adjustable angle scope of tangential swirl blade 15 is typically within 0 °～45 °, and secondary wind air quantity accounts for the 50%～80% of total blast volume.
Described burner block 10 have 8～20 (such as: 8,15 or 20) and center air runner 11 axially in parallel air holes road, border 12, opening cross-sectional area is circular, oval or square.
Burner block 10 port of export has and necessarily expands angle, expands angle range and is generally 15 °～30 °, and air-flow is played a degree of guide functions by enlarging.
Low NO of the present utility modelXGas burner adopts air staged combustion technology, and whole fuel gas pass into air flow channel through integral combustor, and combustion air divides three grades to pass into burner hearth.Fuel gas and root First air are mixed to form primary combustion zone；Secondary combustion-supporting wind is adjusted assembly and forms the centrifugal wind of strong eddy flow, mixes with the fuel-rich flue gas through primary combustion, forms intermediate zone, carry out combustion with meagre oxygen；Border wind enters burner hearth through air holes road, border, around intermediate zone, mixes with the remaining fuel gas of burning and flue gas, completes all to burn and formed three combustion zones.Whole combustion process, is delayed the time of contact of fuel and oxygen, namely reduces flame peak temperature, is conducive to again the formation of reducing atmosphere, makes NOXGeneration is greatly reduced.
Low NO of the present utility modelXGas burner adopts flue gas recirculating technique, secondary combustion-supporting wind forms the centrifugal wind of strong eddy flow through swirl vane, negative pressuren zone is generated in air flow channel center, attract smoke backflow, and under the effect of burner block enlarging, form the extension rotating jet with certain expanded-angle, and expanding the radial expansion scope of recirculating zone further, namely inertia flue gas cools thermal-flame, reduce again the partial pressure of oxygen of combustion zone, thus reducing NOXGrowing amount.
Burner adopts three grades to adjust wind form, and First air and border wind are direct current wind, and secondary wind is Whirl deposite tank.In operation, can pass through to regulate First air adjusting part 6, change rigidity and the stability of main combustion flame, by regulating the angle of the tangential rotating vane of secondary air regulation assembly 9, change the spin intensity of burner outlet combustion air, controlling the size of the high temperature recirculation zone formed in combustion process, direct current border wind one is that two promote unburned fuel to burn completely in order to attract high ambient temperatures smoke backflow.
Burner adopts three grades to adjust wind forms, by controlling the ratio of primary and secondary air and border wind, regulate high temperature recirculation zone start position and recirculating zone axial length, and form axially staged burning, reduce NO in combustion processXDischarge.
Claims (7)
1. the swirl strength low NO of adjustable air classificationXGas burner, it is characterised in that: this burner includes bellows (2), is arranged over inlet conduits (1) at bellows (2)；Bellows (2) side is provided with burner block (10), and burner block (10) center is air flow channel (11)；
, air flow channel (11) center internal at bellows (2) is provided with integral combustor (5)；Described integral combustor (5) includes altar lamp and gas burner；
Arranged concentric once wind adjusting part (6), secondary air regulation assembly (9) and air holes road, border (12) successively from inside to outside along integral combustor (5) periphery；Combustion air flows through inlet conduits (1), enters bellows (2), is then tapped off into First air, secondary wind and border wind three strands；Wherein, First air enters the air flow channel (11) of burner block (10) by First air adjusting part (6), secondary wind enters air flow channel (11) through secondary air regulation assembly (9), and border wind enters burner hearth through air holes road, border (12).
2. a kind of swirl strength low NO of adjustable air classification according to claim 1XGas burner, it is characterised in that: described First air adjusting part (6) includes First air linkage (17), fixing air duct (18) and movable air duct (19)；Wherein, movable air duct (19) be arranged in fixing air duct (18) outward and First air linkage (17) be fixedly linked, pull movable air duct (19) mobile in the peripheral circumference of fixing air duct (18) by First air linkage (17), thus changing direct current First air air quantity；Described fixing air duct (18) and upper uniform 4～6 perforates of movable air duct (19).
3. a kind of swirl strength low NO of adjustable air classification according to claim 1XGas burner, it is characterised in that: described secondary air regulation assembly (9) includes pull bar (14) between outer end plate (13), blade, tangential swirl blade (15), inner end plate (16) and secondary wind linkage (20)；Wherein, tangential swirl blade (15) is distributed between outer end plate (13) and inner end plate (16), and pull bar (14) and secondary wind linkage (20) are fixedly linked between blade, the anglec of rotation of tangential swirl blade (15) is regulated by secondary wind linkage (20), change its relative position, thus changing swirl strength and the air quantity of secondary wind；Described tangential swirl blade (15) generally comprises 6～16.
4. a kind of swirl strength low NO of adjustable air classification according to claim 1XGas burner, it is characterised in that: having 8～20 borders air holes road (12) axially in parallel with center air runner (11) on described burner block (10), opening cross-sectional area is circular, oval or square.
5. a kind of swirl strength low NO of adjustable air classification according to claim 1XGas burner, it is characterised in that: described burner block (10) outlet has necessarily expands angle, and expanding angle range is 15 °～30 °.
6. a kind of swirl strength low NO of adjustable air classification according to claim 1XGas burner, it is characterised in that: described altar lamp is controlling down-firing manually or automatically.
7. a kind of swirl strength low NO of adjustable air classification according to claim 1XGas burner, it is characterised in that: described bellows (2) are provided with flame detector (3) and flame-observing hole (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520967137.4U CN205351318U (en) | 2015-11-27 | 2015-11-27 | Air classification hangs down NOx gas burner with adjustable whirl intensity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520967137.4U CN205351318U (en) | 2015-11-27 | 2015-11-27 | Air classification hangs down NOx gas burner with adjustable whirl intensity |
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| CN205351318U true CN205351318U (en) | 2016-06-29 |
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| CN201520967137.4U Active CN205351318U (en) | 2015-11-27 | 2015-11-27 | Air classification hangs down NOx gas burner with adjustable whirl intensity |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765104A (en) * | 2016-11-16 | 2017-05-31 | 广州汇迪新能源科技有限公司 | A kind of biological fuel gas three swirler air distribution low NO |
| CN106907709A (en) * | 2017-02-23 | 2017-06-30 | 中国科学院工程热物理研究所 | A kind of swirling number and the adjustable nozzle of turbulivity, nozzle array and burner |
| CN108253412A (en) * | 2018-03-14 | 2018-07-06 | 山西煜能科技开发有限公司 | A kind of adjustable air supply device of Oil-combustion combusting machine fractional combustion |
| CN110582671A (en) * | 2017-02-02 | 2019-12-17 | 麦克斯威索有限公司 | Premixing method, combustion principle and premixing device using the method, and combustor with the premixing device |
| CN111735044A (en) * | 2020-06-17 | 2020-10-02 | 樱花卫厨（中国）股份有限公司 | Burner for gas water heater |
| CN114198751A (en) * | 2021-11-29 | 2022-03-18 | 北京航化节能环保技术有限公司 | Double-duct adjustable gas-liquid combined combustor |
-
2015
- 2015-11-27 CN CN201520967137.4U patent/CN205351318U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765104A (en) * | 2016-11-16 | 2017-05-31 | 广州汇迪新能源科技有限公司 | A kind of biological fuel gas three swirler air distribution low NO |
| CN110582671A (en) * | 2017-02-02 | 2019-12-17 | 麦克斯威索有限公司 | Premixing method, combustion principle and premixing device using the method, and combustor with the premixing device |
| CN110582671B (en) * | 2017-02-02 | 2022-09-27 | 麦克斯威索有限公司 | Premixing method, combustion method, premixing device, burner head and burner |
| CN106907709A (en) * | 2017-02-23 | 2017-06-30 | 中国科学院工程热物理研究所 | A kind of swirling number and the adjustable nozzle of turbulivity, nozzle array and burner |
| CN108253412A (en) * | 2018-03-14 | 2018-07-06 | 山西煜能科技开发有限公司 | A kind of adjustable air supply device of Oil-combustion combusting machine fractional combustion |
| CN111735044A (en) * | 2020-06-17 | 2020-10-02 | 樱花卫厨（中国）股份有限公司 | Burner for gas water heater |
| CN111735044B (en) * | 2020-06-17 | 2024-06-11 | 樱花卫厨（中国）股份有限公司 | Burner for gas water heater |
| CN114198751A (en) * | 2021-11-29 | 2022-03-18 | 北京航化节能环保技术有限公司 | Double-duct adjustable gas-liquid combined combustor |
| CN114198751B (en) * | 2021-11-29 | 2024-02-09 | 北京航化节能环保技术有限公司 | Double-duct adjustable gas-liquid combined burner |
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Effective date of registration: 20170215 Address after: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee after: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corporation Address before: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee before: Beijing Inst. of Aerospace Dynamics |
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| TR01 | Transfer of patent right |
Effective date of registration: 20170401 Address after: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee after: Beijing wing wing Technology Co., Ltd. Address before: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee before: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corporation |
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| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee after: Beijing aviate energy saving and Environmental Protection Technology Co., Ltd. Address before: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee before: Beijing wing wing Technology Co., Ltd. |
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| CP01 | Change in the name or title of a patent holder |