CN100567816C - A kind of eddy flow powdered coal burner lit up by tiny oil with center wind - Google Patents
A kind of eddy flow powdered coal burner lit up by tiny oil with center wind Download PDFInfo
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- CN100567816C CN100567816C CNB2007103052277A CN200710305227A CN100567816C CN 100567816 C CN100567816 C CN 100567816C CN B2007103052277 A CNB2007103052277 A CN B2007103052277A CN 200710305227 A CN200710305227 A CN 200710305227A CN 100567816 C CN100567816 C CN 100567816C
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- combustion chamber
- coal
- eddy flow
- flame
- oil
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Abstract
The present invention relates to a kind of eddy flow powdered coal burner lit up by tiny oil with center wind, comprise burner body, eddy flow spiral case, combustion chamber, oil combustion chamber, be provided with coal collector in the combustion chamber, described coal collector is provided with a plurality of along burner madial wall circumferencial direction at interval, be provided with central air hose in the described eddy flow spiral case, central air hose stretches in the combustion chamber and is connected with oil combustion chamber, some kerosene rifles can be arranged in the central air hose, it is characterized in that: the outlet of described oil combustion chamber is provided with the flame guiding device that is used for flame is guided into coal collector.Be provided with guiding groove in the described flame guiding device, the outlet of guiding groove is a plurality of, and coal collector is all pointed in each outlet.This puts guiding groove and a plurality of outlet, flame is passed through smoothly, and flow to a plurality of coal collectors simultaneously under the guiding function of guiding groove.Because being provided with the flame guiding device makes oily flame directly flow to the Pulverized Coal Concentration position of coal collector concave surface, and coal dust is very easily caught fire.
Description
Technical field
The invention belongs to a kind of coal burner, belong to generating plant pulverized coal boiler starting ignition and low-load combustion-stabilizing burner particularly.
Background technology
Current coal is in short supply, the ature of coal that boiler is used is difficult to be guaranteed, when causing on the one hand in the running of power station high load capacity, ash erosion is serious, because general pulverized-coal fired boiler is lower than at 70% o'clock at load, burning can be unstable on the other hand, for keeping smooth combustion under the underload, it is combustion-supporting to throw oil again, has had a strong impact on the safety and economic operation of station boiler.Burner is the key that station boiler catches fire and surely uses, so the coal burner that various tiny-oil ignitions are used emerges in an endless stream, the coal burner that these tiny-oil ignitions are used mostly is provided with coal collector, make the coal dust localized concentrations, reach the fuel-efficient purpose of tiny-oil ignition, but its major defect is: the oily flame behind the oil firing can not directly flow to the Pulverized Coal Concentration position of coal collector, fails effectively to improve efficiency of combustion.
Summary of the invention
Technical problem to be solved by this invention is: a kind of eddy flow powdered coal burner lit up by tiny oil with center wind is provided, this burner is directly guided flame the Pulverized Coal Concentration position of coal collector into by the flame guiding device, reaches the fuel-efficient purpose of tiny-oil ignition.
In order to solve the problems of the technologies described above, the present invention by the following technical solutions:
A kind of eddy flow powdered coal burner lit up by tiny oil with center wind, comprise burner body, eddy flow spiral case, combustion chamber, oil combustion chamber, be provided with coal collector in the combustion chamber, described coal collector is provided with a plurality of along burner madial wall circumferencial direction at interval, be provided with central air hose in the described eddy flow spiral case, central air hose stretches in the combustion chamber and is connected with oil combustion chamber, some kerosene rifles can be arranged in the central air hose, it is characterized in that: the outlet of described oil combustion chamber is provided with the flame guiding device that is used for flame is guided into coal collector.
By above technical scheme as can be known: make oily flame directly flow to the Pulverized Coal Concentration position of coal collector concave surface owing to be provided with the flame guiding device, coal dust is very easily caught fire, reach fuel-efficient purpose.
In order to solve the problems of the technologies described above, the present invention adopts following further technical scheme:
Be provided with guiding groove in the described flame guiding device, the outlet of guiding groove is a plurality of, and coal collector is all pointed in each outlet.This puts guiding groove and a plurality of outlet, flame is passed through smoothly, and flow to a plurality of coal collectors simultaneously under the guiding function of guiding groove.
The outlet of described guiding groove is petal.The outlet of guiding groove is designed to petal, and outlet is dispersed to coal collector.
The utility model compared with prior art has following advantage: because the centrifugal action of eddy flow spiral case, in the process of rotational flow, coal dust forms localized concentrations by coal collector, mix, catch fire with center wind after the mechanical atomization of fuel oil process oil gun, oil flame is through there being the oil combustion chamber outlet of flame guiding device, directly flow to thick coal culm, very easily make coal powder ignition, reach fuel-efficient purpose.Adopt the result of the test of this burner to show: but igniting fuel-economizing 70% during kindling, and boiler load is reduced to need not drop in 50% o'clock and helps fuel oil, and is safe and reliable, can use continuously for a long time.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the A-A profile of Fig. 1.
Fig. 3 is that the B-B of Fig. 1 is to cutaway view.
Fig. 4 is a partial sectional view of the present invention.
The specific embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, the present invention is improvements over the prior art, comprise burner body 1, combustion chamber 2, oil combustion chamber 3, eddy flow spiral case 5, oil combustion chamber 3 is arranged in the combustion chamber 2, burner body 1 has interior secondary air duct 12 and outer secondary air duct 13, the position that is positioned at outlet in the combustion chamber 2 also is provided with coal collector, described coal collector is provided with a plurality of along burner madial wall circumferencial direction at interval, coal collector in this example is a plurality of certain axial lengths that have, be provided with at interval along burner madial wall circumferencial direction, the arc-shaped partition 4 that extends radially inwardly, the cross section of dividing plate 4 is C shape (referring to Fig. 3), the inlet of combustion chamber 2 is connected with eddy flow spiral case 5 (referring to Fig. 2), be provided with central air hose 6 in the eddy flow spiral case 5, central air hose 6 stretches in the combustion chamber 2 and is connected with oil combustion chamber 3, and torch oil gun 11 can be arranged in the central air hose 6.
Referring to Fig. 3, Fig. 4, the outlet of oil combustion chamber 3 is provided with the flame guiding device 7 that is used for oily flame is guided into coal collector, be provided with guiding groove 8 in the described flame guiding device 7, the outlet 9 of guiding groove 8 is a plurality of, coal collector is all pointed in each outlet, this puts guiding groove 8 and a plurality of outlet, flame is passed through smoothly, and under the guiding function of guiding groove 8, flow to a plurality of coal collectors simultaneously, the outlet 9 of guiding groove 8 can be designed to be petal, the outlet of guiding groove 8 is designed to petal, and outlet is dispersed to coal collector.
A wind carries coal dust and tangentially enters eddy flow spiral case 5 by import, because the centrifugal action of spiral case 5, coal dust concentrates to combustion chamber 2 walls gradually in the process of rotational flow, be provided with coal collector in the combustion chamber 2, the arc-shaped partition 4 of coal collector forms concave surface 10, form the localized concentrations of coal dust at this position, torch oil gun 11 stretches into oil combustion chamber 3 from central air hose 6, fuel oil mixes, catches fire with center wind after the oil gun mechanical atomization, oil flame is through flame guiding device 7, directly flow to thick coal culm, very easily make coal powder ignition, reach fuel-efficient purpose.
Claims (5)
1, a kind of eddy flow powdered coal burner lit up by tiny oil with center wind, comprise burner body (1), eddy flow spiral case (5), combustion chamber (2), oil combustion chamber (3), the combustion chamber is provided with coal collector in (2), described coal collector is provided with a plurality of along burner madial wall circumferencial direction at interval, be provided with central air hose (6) in the described eddy flow spiral case (5), central air hose (6) stretches in the combustion chamber (2) and is connected with oil combustion chamber (3), some kerosene rifles (11) are arranged in the central air hose (6), it is characterized in that: the outlet of described oil combustion chamber (2) is provided with the flame guiding device (7) that is used for flame is guided into coal collector.
2, a kind of eddy flow powdered coal burner lit up by tiny oil with center wind as claimed in claim 1 is characterized in that: be provided with guiding groove (8) in the described flame guiding device (7), the outlet of guiding groove (8) is a plurality of, and coal collector is all pointed in each outlet.
3, a kind of eddy flow powdered coal burner lit up by tiny oil with center wind as claimed in claim 2, it is characterized in that: the outlet of described guiding groove (8) is petal.
4, a kind of eddy flow powdered coal burner lit up by tiny oil with center wind as claimed in claim 1 or 2 is characterized in that: coal collector is a plurality of arc-shaped partitions that have certain axial length, extend radially inwardly (4).
5, a kind of eddy flow powdered coal burner lit up by tiny oil with center wind as claimed in claim 4, it is characterized in that: the cross section of described dividing plate (4) is a C shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007103052277A CN100567816C (en) | 2007-12-25 | 2007-12-25 | A kind of eddy flow powdered coal burner lit up by tiny oil with center wind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007103052277A CN100567816C (en) | 2007-12-25 | 2007-12-25 | A kind of eddy flow powdered coal burner lit up by tiny oil with center wind |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101210675A CN101210675A (en) | 2008-07-02 |
| CN100567816C true CN100567816C (en) | 2009-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007103052277A Expired - Fee Related CN100567816C (en) | 2007-12-25 | 2007-12-25 | A kind of eddy flow powdered coal burner lit up by tiny oil with center wind |
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| Country | Link |
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| CN (1) | CN100567816C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101561150B (en) * | 2009-06-02 | 2010-08-25 | 向卫 | Oxygen-enriched tiny-oil ignition combustion-stabilizing device |
| CN101696800B (en) * | 2009-10-22 | 2011-01-19 | 中国计量学院 | Variable-section micro-oil combustion chamber |
| CN102567785A (en) * | 2011-11-28 | 2012-07-11 | 浙江省电力试验研究院 | Numeric model-based coal element analysis method |
| CN102434877B (en) * | 2011-12-26 | 2014-07-09 | 上海锅炉厂有限公司 | Micro oil mass ignition gradual combustor |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4348170A (en) * | 1980-06-04 | 1982-09-07 | Foster Wheeler Energy Corporation | Dual register, split stream burner assembly with divider cone |
| US4466363A (en) * | 1979-08-16 | 1984-08-21 | L. & C. Steinmuller Gmbh | Method of igniting a pulverized coal annular burner flame |
| US4474120A (en) * | 1981-02-27 | 1984-10-02 | Steag Ag | Method for at least the two-stage ignition of a fuel dust power burner and a burner system for carrying out this method |
| CN2172404Y (en) * | 1993-11-09 | 1994-07-20 | 哈尔滨工业大学 | Radial thick/thin spiral flow powdered coal burner |
| CN1151001A (en) * | 1995-11-24 | 1997-06-04 | 浙江大学 | Controllable gradation separating spiral-flow powdered coal burning method and device |
| JP2000039108A (en) * | 1998-07-24 | 2000-02-08 | Babcock Hitachi Kk | LOW NOx BURNER |
| CN2699136Y (en) * | 2003-09-18 | 2005-05-11 | 郑平安 | Vortex pulverized coal burner |
| CN200979157Y (en) * | 2006-12-01 | 2007-11-21 | 郑平安 | General coal dust micro-oil ignitor |
| CN201163023Y (en) * | 2007-12-25 | 2008-12-10 | 杭州意能节能技术有限公司 | Trace oil ignition rotational flow coal powder burner with central wind |
-
2007
- 2007-12-25 CN CNB2007103052277A patent/CN100567816C/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4466363A (en) * | 1979-08-16 | 1984-08-21 | L. & C. Steinmuller Gmbh | Method of igniting a pulverized coal annular burner flame |
| US4348170A (en) * | 1980-06-04 | 1982-09-07 | Foster Wheeler Energy Corporation | Dual register, split stream burner assembly with divider cone |
| US4474120A (en) * | 1981-02-27 | 1984-10-02 | Steag Ag | Method for at least the two-stage ignition of a fuel dust power burner and a burner system for carrying out this method |
| CN2172404Y (en) * | 1993-11-09 | 1994-07-20 | 哈尔滨工业大学 | Radial thick/thin spiral flow powdered coal burner |
| CN1151001A (en) * | 1995-11-24 | 1997-06-04 | 浙江大学 | Controllable gradation separating spiral-flow powdered coal burning method and device |
| JP2000039108A (en) * | 1998-07-24 | 2000-02-08 | Babcock Hitachi Kk | LOW NOx BURNER |
| CN2699136Y (en) * | 2003-09-18 | 2005-05-11 | 郑平安 | Vortex pulverized coal burner |
| CN200979157Y (en) * | 2006-12-01 | 2007-11-21 | 郑平安 | General coal dust micro-oil ignitor |
| CN201163023Y (en) * | 2007-12-25 | 2008-12-10 | 杭州意能节能技术有限公司 | Trace oil ignition rotational flow coal powder burner with central wind |
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| CN101210675A (en) | 2008-07-02 |
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Owner name: YINENG ELECTRIC TECHNOLOGY CO., LTD., HANGZHOU Free format text: FORMER OWNER: HANGZHOU YINENG ENERGY-SAVING TECHNOLOGY CO., LTD. Effective date: 20140106 |
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Effective date of registration: 20140106 Address after: The eight district of Hangzhou city in Zhejiang province 310014 Huadian Zhaohui under No. 1 Lane Patentee after: Yineng Electric Technology Co., Ltd., Hangzhou Address before: The eight district of Hangzhou city in Zhejiang province 310014 Huadian Zhaohui under No. 1 Lane Patentee before: Hangzhou Yineng Energy-Saving Technology Co., Ltd. |
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Granted publication date: 20091209 Termination date: 20201225 |
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