CN2859240Y - Fuel/gas two-channel cyclone burner - Google Patents
Fuel/gas two-channel cyclone burner Download PDFInfo
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- CN2859240Y CN2859240Y CN 200620020077 CN200620020077U CN2859240Y CN 2859240 Y CN2859240 Y CN 2859240Y CN 200620020077 CN200620020077 CN 200620020077 CN 200620020077 U CN200620020077 U CN 200620020077U CN 2859240 Y CN2859240 Y CN 2859240Y
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Abstract
The utility model provides a kind of fuel/gas two-channel cyclone burner. The burner includes a center atomizing oil-gun, a gas intake installation and an air register. The fuel intake installation includes an air intake syphon, a loop gas equalizing room and a gas nozzle. The air register includes a center primary air door, a center primary air duct, a circular steady burner with an oblique impeller, a rotary stream secondary air door, a rotary stream secondary air duct, a rotary stream air equipment, a direct current secondary air door, a direct current secondary air duct and an attemperator of bellows. The utility model has the advantages of strong firing stability, wide-range of load flexibility, high combustion efficiency, little burner resistance and reduction of NOx discharge.
Description
(1) technical field
The utility model relates to a kind of burner, specifically a kind of Gas and Oil Burning Double-channel Eddy Burner that adapts to boiler combustion, industrial heating furnace burning and CFBB baker.
(2) background technology
Economic development and environmental protection are the matters of utmost importance that various countries, the world today pay close attention to.In China, economic continual and steady development promotes the constantly surging of compatriots' environmental consciousness simultaneously, and after bringing the puzzlement of economic growth, people recognize that " whole people save, common action to sacrifice the energy, environment having born.Set up conservation-minded society " be the important measures and the wise selection of National Environmental, Development of Economy.For a long time, the fuel-firing gas-firing burner ubiquity load adaptability of China is poor.Under certain load, can reach completing combustion substantially; When at little load, unstable combustion occurs, occur analysing the carbon phenomenon near the nozzle, even cause nozzle to burn out; The air register adjusting function is poor, and manual operation labour intensity is big; The burner resistance coefficient is big, supply air system energy consumption height; Control low oxygen combustion difficulty; Problems such as NOx discharge capacity height.Therefore, improve fuel-firing gas-firing burner combustion efficient, strengthen fuel-firing gas-firing burning load adaptive capacity, improve air register control characteristic, reduce fuel-firing gas-firing burner resistance and reduce witch's problem to be solved that the NOx discharge capacity person that is the working energy faces.
(3) summary of the invention
Goal of the invention of the present utility model be to provide a kind of combustion stability can be strong, load accommodation is wide, efficiency of combustion is high, the burner resistance is little, reduce the Gas and Oil Burning Double-channel Eddy Burner of NOx discharge capacity.
The purpose of this utility model is achieved in that it comprises center atomized oil gun, gas inlet device and air register; Gas inlet device comprises that intake elbow, annular fuel gas all press chamber and gas nozzle; Air register comprises the wind air door in center, wind air channel, center and the oblique impeller stabilizer of circular arc, swirl secondary air air door, swirl secondary air air channel and eddy flow air distribution device, direct current secondary wind air door, direct current secondary wind air channel, the attemperator of branch matching air box; The center atomized oil gun is positioned at the center, wind air channel, center wraps in outside the atomized oil gun of center, the oblique impeller stabilizer of circular arc is arranged at the exit in a wind air channel, center, the annular fuel gas all chamber of pressure wraps in outside wind air channel, center, the swirl secondary air air channel wraps in annular fuel gas and all presses outdoor, the eddy flow air distribution device is arranged at the exit in swirl secondary air air channel, and direct current secondary wind air channel wraps in outside the swirl secondary air air channel, divides the attemperator of matching air box to wrap in outside the branch matching air box.
The utility model can also comprise:
1, the bicker degree that revolves of the oblique impeller stabilizer of circular arc adopts 2 α=24 °-30 °.
2, gas nozzle is an annular slot formula structure.
Advantage of the present utility model is mainly reflected in:
1, Gas and Oil Burning Double-channel Eddy Burner is a kind of oil gas burner that is suitable for boiler combustion, industrial heating furnace burning and CFBB baker.It is burning gases separately, as natural gas, town gas, gas, blast furnace gas, coke-stove gas etc.; Also combustion oil separately is as light oil, heavy oil, crude oil, residual oil etc.; Also can oil-gas mixed burning.
2, wind air quantity of control centre has improved the air-supply of mist of oil root, and outlet stratification of wind thickening helps the early stage mixing of wind oil, and the recirculating zone is significantly outer moves 300-400mm, and the recirculating zone root diminishes.Nose sleeve does not have burnout phenomenon.
3, changed blade construction and opacity, the air register exit flow radially distributes comparatively even, and the outlet actual wind speed descends, and the air register resistance reduces to 1350-1750Pa.
4, rationally adjust the wind in center, swirl secondary air, direct current secondary wind, realize multistage air distribution, control flame diameter, length scale, general 2500-3000mm; Burning is strong, and imperfect combustion heat loss is little, flame stabilization, 1510-1615 ℃ of flame kernel temperature; Burning quality is greatly improved, the corresponding raising of boiler efficiency 1%-1.2%.
5, can realize low oxygen combustion, air stage feeding reduces the NOx discharge capacity.
6, simple in structure, be convenient to maintenance.
(4) description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the right view of Fig. 1.
(5) specific embodiment
For a more detailed description to the utility model for example below in conjunction with accompanying drawing:
In conjunction with Fig. 1 and Fig. 2, the composition of Gas and Oil Burning Double-channel Eddy Burner comprises center atomized oil gun 1, and gas inlet device 2 and air register 3 are formed.Gas inlet device comprises intake elbow 4, and annular fuel gas is all pressed chamber 5, gas nozzle 6.Air register comprises the wind air door 7 in center, wind air channel 8, center, the oblique impeller stabilizer 9 of circular arc, swirl secondary air air door 10, swirl secondary air air channel 11, eddy flow air distribution device 12, direct current secondary wind air door 13, direct current secondary wind air channel 14, the attemperator 15 of branch matching air box.The center atomized oil gun is positioned at the center, wind air channel, center wraps in outside the atomized oil gun of center, the oblique impeller stabilizer of circular arc is arranged at the exit in a wind air channel, center, the annular fuel gas all chamber of pressure wraps in outside wind air channel, center, the swirl secondary air air channel wraps in annular fuel gas and all presses outdoor, the eddy flow air distribution device is arranged at the exit in swirl secondary air air channel, and direct current secondary wind air channel wraps in outside the swirl secondary air air channel, divides the attemperator of matching air box to wrap in outside the branch matching air box.To adopt 2 α=24 °-30 ° of gas nozzles be annular slot formula structure to the bicker degree that revolves of the oblique impeller stabilizer of circular arc.
Know-why of the present utility model is: the air register for Gas and Oil Burning Double-channel Eddy Burner has adopted three strands of wind when designing: the wind in center, swirl secondary air, peripheral direct current secondary wind.
Sending into the wind in a certain amount of center from the torch root, make that this part air does not also not come at mist of oil and explosive vaporization and burning before, just penetrate in the mist of oil, to mix the early stage of improving air and mist of oil.Suitably increase center primary air flow can also reduce the spin intensity of primary air, reduce the air-flow angle of flare, the recirculating zone, center is passed to the burner hearth center, avoid the spout coking and burn out burner, can avoid analysing carbon, can reduce chemistry and mechanical imperfect combustion loss in addition, improve efficiency of combustion.The wind in center is one of effective means of adjusting the burner operating mode.
The oblique impeller stabilizer of circular arc is arranged in wind air channel at the center, can obtain a stable centers recirculating zone, makes the wind in center slightly spread, and with disturbance and early stage mixing of strengthening the flame root, purpose is that (1) makes and catches fire and burn well.(2) change and during load variations, the oblique impeller stabilizer of circular arc can make air register export flame still can obtain good stable when the swirl strength of swirl secondary air.
The blade exit inclination angle of eddy flow air distribution device and the angle of flare of air-flow are excessive, are unfavorable for the mixed combustion of wind and oil, though swirl secondary air has strong blending effect, its range is shorter.How to improve the adjusting function of swirl secondary air, in order to satisfy later stage air feed requirement, here our design arrangement peripheral direct current secondary wind so that satisfy flame later stage air feed and regulate the effect of flame profile.Peripheral direct current secondary wind accounts for about 20% of total blast volume, so as will to the eddy flow of external diffusion press to the center some.Change flame profile.
Simultaneously, wind in center and swirl secondary air rotate in the same way, can make the lasting and stratification of wind thickness increase of swirl strength like this, help large-sized turbulent disturbance, make the boiler flame degree of filling better, and be complete in bigger space internal combustion.
The bicker degree that revolves of air register adopts 2 α=24 °-30 °, helps reducing burning and regulates, and reduces resistance, obtains the flame of large-size and strong turbulent mixture.
Gas and Oil Burning Double-channel Eddy Burner can be realized low oxygen combustion, the furnace outlet excess air coefficient is about 1.05, the classification of the wind in center, swirl secondary air and peripheral direct current secondary wind is sent into, and is reducing atmosphere in the fire area of burning, reduces the NOx discharge capacity.
Gas nozzle has adopted annular slot formula structure, annular slot formula structure is distributed in the air stream of swirl secondary air jet-flow equably, its penetration depth can reach more than 2/3 of thickness of air stream of swirl secondary air, make combustion gas and air fully mix, fully burn for combustion gas and created condition.
Claims (3)
1, a kind of Gas and Oil Burning Double-channel Eddy Burner, it comprises center atomized oil gun, gas inlet device and air register; It is characterized in that: gas inlet device comprises that intake elbow, annular fuel gas all press chamber and gas nozzle; Air register comprises the wind air door in center, wind air channel, center and the oblique impeller stabilizer of circular arc, swirl secondary air air door, swirl secondary air air channel and eddy flow air distribution device, direct current secondary wind air door, direct current secondary wind air channel, the attemperator of branch matching air box; The center atomized oil gun is positioned at the center, wind air channel, center wraps in outside the atomized oil gun of center, the oblique impeller stabilizer of circular arc is arranged at the exit in a wind air channel, center, the annular fuel gas all chamber of pressure wraps in outside wind air channel, center, the swirl secondary air air channel wraps in annular fuel gas and all presses outdoor, the eddy flow air distribution device is arranged at the exit in swirl secondary air air channel, and direct current secondary wind air channel wraps in outside the swirl secondary air air channel, divides the attemperator of matching air box to wrap in outside the branch matching air box.
2, Gas and Oil Burning Double-channel Eddy Burner according to claim 1 is characterized in that: the bicker degree that revolves of the oblique impeller stabilizer of circular arc adopts 2 α=24 °-30 °.
3, Gas and Oil Burning Double-channel Eddy Burner according to claim 1 and 2 is characterized in that: gas nozzle is an annular slot formula structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620020077 CN2859240Y (en) | 2006-01-18 | 2006-01-18 | Fuel/gas two-channel cyclone burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620020077 CN2859240Y (en) | 2006-01-18 | 2006-01-18 | Fuel/gas two-channel cyclone burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2859240Y true CN2859240Y (en) | 2007-01-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620020077 Expired - Lifetime CN2859240Y (en) | 2006-01-18 | 2006-01-18 | Fuel/gas two-channel cyclone burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2859240Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476720B (en) * | 2008-11-11 | 2010-12-15 | 烟台双强燃烧控制工程有限公司 | Ignition device under circulating sulfuration bed of boiler |
| CN102261836A (en) * | 2011-05-16 | 2011-11-30 | 鞍山普贝达科技有限公司 | Oxygen-enriched combustion-supporting burner used for rotary kiln and use method thereof |
| CN102012030B (en) * | 2009-09-02 | 2013-05-15 | 江西中船航海仪器有限公司 | Dual media atomizing combustor |
| CN105180158A (en) * | 2015-08-26 | 2015-12-23 | 中国科学院工程热物理研究所 | Combustion method capable of reducing nitrogen oxide discharge of circulating fluidized bed |
| CN105180159A (en) * | 2015-08-26 | 2015-12-23 | 中国科学院工程热物理研究所 | Circulating fluidized bed combustion method capable of realizing cooling by afterflaming air |
| CN105526585A (en) * | 2016-01-19 | 2016-04-27 | 南京创能电力科技开发有限公司 | Crude oil swirling low-nitrogen burner of steam-injection boiler |
| CN106090921A (en) * | 2016-06-22 | 2016-11-09 | 江苏大学 | A kind of burner that can be used for multi fuel blending combustion phenomena research with dual rotary inflow channel |
| CN109654498A (en) * | 2019-01-18 | 2019-04-19 | 北京基鼎环保科技有限公司 | A kind of oil-gas two-way low NO |
| CN112413580A (en) * | 2020-11-27 | 2021-02-26 | 扬州大学 | Heavy oil burner using bubble atomizing nozzle and operation method thereof |
-
2006
- 2006-01-18 CN CN 200620020077 patent/CN2859240Y/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101476720B (en) * | 2008-11-11 | 2010-12-15 | 烟台双强燃烧控制工程有限公司 | Ignition device under circulating sulfuration bed of boiler |
| CN102012030B (en) * | 2009-09-02 | 2013-05-15 | 江西中船航海仪器有限公司 | Dual media atomizing combustor |
| CN102261836A (en) * | 2011-05-16 | 2011-11-30 | 鞍山普贝达科技有限公司 | Oxygen-enriched combustion-supporting burner used for rotary kiln and use method thereof |
| CN105180158A (en) * | 2015-08-26 | 2015-12-23 | 中国科学院工程热物理研究所 | Combustion method capable of reducing nitrogen oxide discharge of circulating fluidized bed |
| CN105180159A (en) * | 2015-08-26 | 2015-12-23 | 中国科学院工程热物理研究所 | Circulating fluidized bed combustion method capable of realizing cooling by afterflaming air |
| CN105180158B (en) * | 2015-08-26 | 2018-06-19 | 中国科学院工程热物理研究所 | Reduce the combustion method of nitrogen oxides in circulating fluid bed discharge |
| CN105180159B (en) * | 2015-08-26 | 2018-10-09 | 中国科学院工程热物理研究所 | Mend the circulating fluidized bed combustion method of air cooling |
| CN105526585A (en) * | 2016-01-19 | 2016-04-27 | 南京创能电力科技开发有限公司 | Crude oil swirling low-nitrogen burner of steam-injection boiler |
| CN106090921A (en) * | 2016-06-22 | 2016-11-09 | 江苏大学 | A kind of burner that can be used for multi fuel blending combustion phenomena research with dual rotary inflow channel |
| CN106090921B (en) * | 2016-06-22 | 2018-04-17 | 江苏大学 | A kind of burner that can be used for multi fuel blending combustion phenomena research with dual rotary inflow channel |
| CN109654498A (en) * | 2019-01-18 | 2019-04-19 | 北京基鼎环保科技有限公司 | A kind of oil-gas two-way low NO |
| CN112413580A (en) * | 2020-11-27 | 2021-02-26 | 扬州大学 | Heavy oil burner using bubble atomizing nozzle and operation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Harbin Power System Engineering & Research Institute Co., Ltd.of CNEEC Assignor: Cheng Qinggang|Yu Ruikai Contract fulfillment period: 2008.9.26 to 2013.9.26 Contract record no.: 2008230000009 Denomination of utility model: Fuel/gas two-channel cyclone burner Granted publication date: 20070117 License type: Exclusive license Record date: 20081008 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.9.26 TO 2013.9.26; CHANGE OF CONTRACT Name of requester: HARBIN ELECTRICITY EQUIPMENT DESIGN INSTITUTE Effective date: 20081008 |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070117 |
|
| EXPY | Termination of patent right or utility model |