CN103047671A - Sandwich wind combustion device - Google Patents
Sandwich wind combustion device Download PDFInfo
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- CN103047671A CN103047671A CN2012105811530A CN201210581153A CN103047671A CN 103047671 A CN103047671 A CN 103047671A CN 2012105811530 A CN2012105811530 A CN 2012105811530A CN 201210581153 A CN201210581153 A CN 201210581153A CN 103047671 A CN103047671 A CN 103047671A
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- burner
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Abstract
The invention provides a sandwich wind combustion device and solves the problem that a brown coal boiler combustor is low in performance due to the fact a brown coal boiler combustor is simple in structure in the prior art. The sandwich wind combustion device comprises a first passage, a second passage, a wind powder inlet, a wind blowing inlet, a wind powder spraying port, N wind spraying ports, a sandwich wind passage and a sandwich wind spraying port, wherein N is a positive integer larger than 1. The second passage is arranged in the first passage. The wind powder inlet is arranged at one end of the second passage. The wind blowing inlet is arranged at one end of the first passage. The wind powder spraying port is communicated with the second passage. The wind spraying ports are communicated with the first passage. The sandwich wind passage is arranged between optional two adjacent wind spraying ports. The sandwich wind spraying port is arranged at one end of the sandwich wind passage and used for discharging sandwich winds to a boiler combustion chamber. The wind powder spraying port, the wind spraying ports and the sandwich wind port are all communicated with the boiler combustion chamber. By the sandwich wind combustion device, performance of the brown coal boiler combustor is improved.
Description
Technical field
The present invention relates to the burner field, refer to especially a kind of sandwich wind burner.
Background technology
Along with the variation of domestic and international steam coal for power, increasing boiler uses brown coal, and this just requires to possess dynamical burner will constantly research and develop the burner that is fit to this ature of coal.Boiler using brown coal burner of the prior art because simple in structure so that poor combustion stability, spout coking, can not after-flame, problem that discharged nitrous oxides is high, therefore, a kind of boiler using brown coal burner with high burning performance in the urgent need to.
Summary of the invention
The present invention proposes a kind of sandwich wind burner, has solved in the prior art because simple in structure, causes the low problem of boiler using brown coal burner performance.
Technical scheme of the present invention is achieved in that
A kind of sandwich wind burner comprises:
First passage and the second channel that is arranged in the first passage;
Wind powder entrance is used for air and coal dust and is blown into, and is arranged on second channel one end;
The wind entrance is used for Secondary Air and is blown into, and is arranged on first passage one end;
Wind powder spout, the air and the coal dust that are used for wind powder entrance is entered mix the rear mixture discharge that forms, and are communicated with second channel;
N wind snout, the Secondary Air that is used for the wind entrance is entered is discharged, and is communicated with first passage, and N is the positive integer greater than 1;
Sandwich wind passage is arranged between two wind snouts of arbitrary neighborhood;
Sandwich wind snout is arranged on an end of sandwich wind passage, is used for sandwich wind is discharged to boiler furnace;
Wind powder spout, wind snout and sandwich wind snout all are communicated with boiler furnace.
Preferably, also comprise, burnt tooth is used for preventing the coking of wind snout place, is arranged on the wind snout.
Preferably, be provided with burnt tooth on two wind snouts of arbitrary neighborhood, and burnt tooth is arranged on the adjacent surface of two wind snouts of arbitrary neighborhood.
Preferably, sandwich wind passage specifically comprises two sides and the rear plate of two wind snouts of arbitrary neighborhood.
Preferably, first passage is specially the first passage with right angle corner, and second channel is arranged on the outer corner at right angle.
Preferably, N is specially 2.
Technical solution of the present invention is by being arranged on first passage with second channel, and the structural design that cooperates sandwich wind passage and sandwich wind snout by wind powder entrance, wind entrance, wind powder spout and wind snout, so that more even at wind powder and the wind sent into to boiler using brown coal, and then improved the stability of burning, and because wind powder and the wind sent into are more even, so that the burning more thorough, from another aspect, improved greatly the performance of boiler using brown coal burner.
In addition, the glue tooth that goes out by being arranged on wind snout can prevent that wind snout from going out coking, and then reduce discharged nitrous oxides.
Beneficial effect of the present invention:
1, catch fire and flameholding, the low-load combustion-stabilizing ability is strong, and efficiency of combustion is high;
2, discharged nitrous oxides is low;
3, burner long service life;
4, solve the problem that domestic power plant uses brown coal, had good economy, adaptability and market potential.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the planar structure schematic diagram of a kind of sandwich wind burner of the present invention;
Fig. 2 is the planar structure schematic diagram of a kind of sandwich another embodiment of wind burner of the present invention.
Among the figure:
1, first passage; 2, second channel; 3, wind powder entrance; 4, wind entrance; 5, wind powder spout; 6, wind snout; 7, sandwich wind passage; 8, sandwich wind snout; 9, burnt tooth; 10, rear plate.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
As depicted in figs. 1 and 2, a kind of sandwich wind burner of the present invention comprises:
N wind snout 6, the Secondary Air that is used for wind entrance 4 is entered is discharged, and is communicated with first passage 1, and N is the positive integer greater than 1;
Sandwich wind passage 7 is arranged between two wind snouts 6 of arbitrary neighborhood;
By second channel 2 is arranged on first passage 1, and the structural design that cooperates sandwich wind passage 7 and sandwich wind snout 8 by wind powder entrance 3, wind entrance 4, wind powder spout 5 and wind snout 6, so that more even at wind powder and the wind sent into to boiler using brown coal, and then improved the stability of burning, and because wind powder and the wind sent into are more even, so that the burning more thorough, from another aspect, improved greatly the performance of boiler using brown coal burner.
Among the embodiment among the present invention, second channel 2 is arranged in the first passage 1, and the end at second channel 2 is provided with wind powder entrance 3, by wind powder entrance 3 air and coal dust is blown in the second channel 2, by second channel 2 air and coal dust is mixed; End at first passage 1 is provided with wind entrance 4, by wind entrance 4 so that Secondary Air be blown into; Wind powder spout 5 is communicated with second channel 2, air and the mixed mixture of coal dust are discharged in the boiler using brown coal, wind snout 6 is communicated with first passage 1, the Secondary Air that enters is discharged in the boiler using brown coal, because secondary air flow is larger, therefore can promote fully burning in the boiler using brown coal, wind snout 6 is specially N in the present embodiment, and N is the positive integer greater than 1, and namely the number of concrete wind snout 6 is decided according to the operating position of reality, in the present embodiment, preferably N is set to 2; Sandwich wind passage 7, be arranged between two wind snouts 6 of arbitrary neighborhood, end at sandwich wind passage 7 is provided with sandwich wind snout 8, the sandwich wind that will produce by sandwich wind passage 7 and sandwich wind snout 8 is discharged in the boiler using brown coal, realize further fully burning in the boiler using brown coal, in the present embodiment, wind powder spout 5, wind snout 6 and sandwich wind snout 8 all are communicated with boiler furnace.
Preferably, also comprise, burnt tooth 9 is used for preventing wind snout 6 places coking, is arranged on the wind snout 6.
Preferably, be provided with burnt tooth 9 on two wind snouts 6 of arbitrary neighborhood, and burnt tooth 9 is arranged on the adjacent surface of two wind snouts 6 of arbitrary neighborhood.
Among another embodiment among the present invention, be provided with burnt tooth 9 at wind snout 6 places, prevent wind snout 6 places coking by burnt tooth 9, in the present embodiment because wind snout 6 is specially N, the number of burnt tooth 9 also is preferably N, be that 2 wind snouts 6 preferably are set in the present embodiment, equally preferably be respectively arranged with burnt tooth 9 at these 2 wind snouts 6; On the concrete adjacent surface that is arranged on minute spout of the burnt tooth 9 that wherein arranges on two minutes spouts of arbitrary neighborhood, can better carry out preventing of coking by such design.
Preferably, sandwich wind passage 7 specifically comprises two sides and the rear plate 10 of two wind snouts 6 of arbitrary neighborhood.
Among the present invention, sandwich wind passage 7 is comprised of two sides and the rear plate 10 of adjacent wind snout 6, by such circulation that can better guarantee sandwich wind that arranges.
Preferably, first passage 1 is specially the first passage 1 with right angle corner, and second channel 2 is arranged on the outer corner at right angle.
Among another embodiment among the present invention, first passage 1 is specially the first passage 1 of right angle corner, and second channel 2 is arranged on the right angle corner place, by such setting, the length of second channel 2 is less than the length of first passage 1, therefore after second channel 2 was discharged into the mixture of air and coal dust in the boiler using brown coal again, first passage 1 just was discharged into Secondary Air in the boiler using brown coal, and then Secondary Air can reach and makes fully burning in the boiler using brown coal.
Preferably, N is specially 2.
Below only be preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a sandwich wind burner is characterized in that, comprising:
First passage (1) and be arranged on second channel (2) in the described first passage (1);
Wind powder entrance (3) is used for air and coal dust and is blown into, and is arranged on described second channel (2) one ends;
Wind entrance (4) is used for Secondary Air and is blown into, and is arranged on described first passage (1) one end;
Wind powder spout (5), the air and the coal dust that are used for described wind powder entrance (3) is entered mix the rear mixture discharge that forms, and are communicated with described second channel (2);
N wind snout (6), the Secondary Air that is used for described wind entrance (4) is entered is discharged, and is communicated with described first passage (1), and described N is the positive integer greater than 1;
Sandwich wind passage (7) is arranged between two described wind snouts (6) of arbitrary neighborhood;
Sandwich wind snout (8) is arranged on an end of described sandwich wind passage (7), is used for sandwich wind is discharged to boiler furnace;
Described wind powder spout (5), described wind snout (6) and described sandwich wind snout (8) all are communicated with boiler furnace.
2. sandwich wind burner as claimed in claim 1 is characterized in that, also comprises, burnt tooth (9) is used for preventing that described wind snout (6) from locating coking, is arranged on the described wind snout (6).
3. sandwich wind burner as claimed in claim 2, it is characterized in that, be provided with described burnt tooth (9) on two described wind snouts (6) of arbitrary neighborhood, and described burnt tooth (9) is arranged on the adjacent surface of two described wind snouts (6) of arbitrary neighborhood.
4. sandwich wind burner as claimed in claim 3 is characterized in that, described sandwich wind passage (7) specifically comprises two sides and the rear plate (10) of two described wind snouts (6) of arbitrary neighborhood.
5. sandwich wind burner as claimed in claim 4 is characterized in that, described first passage (1) is specially the first passage (1) with right angle corner, and described second channel (2) is arranged on the outer corner at described right angle.
6. sandwich wind burner as claimed in claim 5 is characterized in that, described N is specially 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105811530A CN103047671A (en) | 2012-12-28 | 2012-12-28 | Sandwich wind combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105811530A CN103047671A (en) | 2012-12-28 | 2012-12-28 | Sandwich wind combustion device |
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| Publication Number | Publication Date |
|---|---|
| CN103047671A true CN103047671A (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105811530A Pending CN103047671A (en) | 2012-12-28 | 2012-12-28 | Sandwich wind combustion device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002243111A (en) * | 2001-02-21 | 2002-08-28 | Hitachi Ltd | Combustion device of coal igniting boiler |
| CN2771668Y (en) * | 2005-02-07 | 2006-04-12 | 煤炭科学研究总院北京煤化工研究分院 | Uniformly coal-ash feeding apparatus |
| CN201180983Y (en) * | 2007-09-10 | 2009-01-14 | 中电投远达环保工程有限公司 | Self-adapting ignition combustion device of monotube boiler |
| CN101482262A (en) * | 2009-02-04 | 2009-07-15 | 哈尔滨工业大学 | Lignite boiler combustion method capable of reducing nitrogen oxide emission |
| CN202484988U (en) * | 2012-02-10 | 2012-10-10 | 北京哈宜节能环保科技开发有限公司 | Sandwiched air burner of boiler burning brown coal |
-
2012
- 2012-12-28 CN CN2012105811530A patent/CN103047671A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002243111A (en) * | 2001-02-21 | 2002-08-28 | Hitachi Ltd | Combustion device of coal igniting boiler |
| CN2771668Y (en) * | 2005-02-07 | 2006-04-12 | 煤炭科学研究总院北京煤化工研究分院 | Uniformly coal-ash feeding apparatus |
| CN201180983Y (en) * | 2007-09-10 | 2009-01-14 | 中电投远达环保工程有限公司 | Self-adapting ignition combustion device of monotube boiler |
| CN101482262A (en) * | 2009-02-04 | 2009-07-15 | 哈尔滨工业大学 | Lignite boiler combustion method capable of reducing nitrogen oxide emission |
| CN202484988U (en) * | 2012-02-10 | 2012-10-10 | 北京哈宜节能环保科技开发有限公司 | Sandwiched air burner of boiler burning brown coal |
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Application publication date: 20130417 |