CN218544416U - Column flow multi-cyclone low-nitrogen combustor - Google Patents
Column flow multi-cyclone low-nitrogen combustor Download PDFInfo
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- CN218544416U CN218544416U CN202222167589.7U CN202222167589U CN218544416U CN 218544416 U CN218544416 U CN 218544416U CN 202222167589 U CN202222167589 U CN 202222167589U CN 218544416 U CN218544416 U CN 218544416U
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- wall body
- air
- vault
- coal gas
- row
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 8
- 239000007789 gas Substances 0.000 claims abstract description 33
- 239000003034 coal gas Substances 0.000 claims abstract description 24
- 238000009826 distribution Methods 0.000 claims abstract description 14
- 238000005520 cutting process Methods 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 abstract description 11
- 239000000203 mixture Substances 0.000 abstract description 8
- 239000011449 brick Substances 0.000 abstract description 4
- 206010063659 Aversion Diseases 0.000 abstract description 2
- 230000008676 import Effects 0.000 abstract 1
- 239000007921 spray Substances 0.000 description 7
- 239000003595 mist Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010285 flame spraying Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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Abstract
The utility model relates to a post flows low nitrogen combustor soon more, can effectively solve prior art gas mixture inequality, the burning is not enough abundant, the air current is unstable, combustion strength is low, the gas nozzle brick peels off, the fracture, the problem of aversion, the technical scheme of its solution is, the combustor body comprises the arc wall body of vault the latter half and the straight section wall body of connection in the vault below, be provided with the air inlet pipe on the arc wall body lateral wall of vault, be equipped with the air circuit in the arc wall body, be provided with the coal gas import pipe on the straight section wall body lateral wall of vault below, be equipped with the coal gas circuit in the straight section wall body, be provided with along the perpendicular and evenly distributed's of circumference air distribution passageway in the inboard wall body of coal gas circuit, the utility model discloses can make gas mixture even, the burning is abundant, the air current is stable, and combustion strength is high, and air, coal gas adopt the crisscross setting of two circuit post flows, makes the air current mixing effect better, is the innovation on the combustor.
Description
Technical Field
The utility model relates to a combustor, especially a post flows low NOx burner that revolves more.
Background
The burner is necessary equipment of hot blast stove in industrial production, the fuel for burning of hot blast stove is coal gas, the excess air method is adopted to carry out burning control, and the best burning state is kept to burn in the specified burning time; therefore, the burner is one of important parts in the hot blast stove, whether the structure of the burner is reasonable or not directly influences the heat efficiency and the service life of the hot blast stove, the phenomena of nonuniform gas mixing, insufficient combustion, unstable airflow, low combustion strength, peeling, cracking, displacement and the like of a gas nozzle brick are always the problems of the existing burner, and the improvement of the burner is urgent to solve because the effect is still unsatisfactory although various improvements are made on the existing burner.
Disclosure of Invention
To the above situation, for solving prior art's defect, the utility model aims at providing a post flows low NOx burner soon more, can effectively solve prior art gas mixture inequality, the burning is not enough, and the air current is unstable, and combustion strength is low, and the gas nozzle brick peels off, splits, the problem of aversion.
The utility model provides a technical scheme be, including the combustor body, the vault, air inlet pipe and coal gas inlet pipe, the combustor body comprises the arc wall body of vault the latter half and the straight section wall body of connection in the vault below, be provided with the air inlet pipe on the arc wall body lateral wall of vault the latter half, be equipped with the air circuit in the arc wall body, be provided with the coal gas inlet pipe on the straight section wall body lateral wall of vault below, be equipped with the coal gas circuit in the straight section wall body, be provided with along the perpendicular and evenly distributed's of circumference air distribution passageway in the inboard wall body of coal gas circuit, air distribution passageway top is linked together with the air circuit, air distribution passageway side one end is provided with the air passage who is linked together with the mist passageway, be equipped with the gas passage that is linked together with the mist passageway in the inboard wall body of coal gas circuit, be provided with four rows of annular nozzles about on the straight section wall body inside wall.
The utility model discloses the combustor can make gas mixture even, and the burning is abundant, and the air current is stable, and combustion strength is high, can not damage the combustor nozzle among the co-combustion process, and air, coal gas adopt the crisscross setting of two ring road post flows, make the air current mix the effect better, excellent in use effect, the practicality is strong, is the innovation on the combustor, has good economy and social.
Drawings
Fig. 1 is a front view of the structure section of the present invention.
Fig. 2 isbase:Sub>A schematic sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1 according to the present invention.
Fig. 3 is a schematic cross-sectional view of fig. 1 taken along line B-B according to the present invention.
Fig. 4 is a schematic cross-sectional view of fig. 1 according to the present invention.
Fig. 5 is a schematic cross-sectional view of fig. 1 taken along line D-D according to the present invention.
Detailed Description
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
Given by fig. 1-5, the utility model discloses a burner body, the vault, air inlet pipe and coal gas inlet pipe, burner body 10 comprises the arc wall body of vault the latter half and the straight section wall body of connection in the vault below, be provided with air inlet pipe 2 on the arc wall body lateral wall of vault the latter half, be equipped with air ring 4 in the arc wall body, be provided with coal gas inlet pipe 3 on the straight section wall body lateral wall of vault below, be equipped with coal gas ring 5 in the straight section wall body, be provided with along the perpendicular and evenly distributed's of circumference air distribution passageway 6 in the 5 inboard wall bodies of coal gas ring, 6 tops of air distribution passageway are linked together with air ring 4, 6 side one end of air distribution passageway is provided with the air passage 8 that is linked together with mixed gas passageway 9, be equipped with the coal gas passageway 7 that is linked together with mixed gas passageway 9 in the 5 inboard wall bodies of coal gas ring, be provided with upper and lower four rows of annular nozzle inside wall 91 on the straight section wall body, 92, 93, 94.
In order to ensure the using effect, the mixed gas channel 9 is vertically and uniformly distributed on the inner side wall of the straight section wall along the circumferential direction.
The mixed gas channel 9 is communicated with upper and lower four rows of annular nozzles 91, 92, 93 and 94 which are uniformly arranged on the inner side wall of the straight section wall of the burner body 10.
The upper and lower four rows of annular nozzles 91, 92, 93 and 94 are communicated with the gas channel 7, the air channel 8 and the mixed gas channel 9, the upper first row of annular nozzles 91 are straight spray holes vertical to the central axis of the burner, the second row of annular nozzles 92 are spray holes forming a rotary cutting angle of 8-20 degrees with the central axis, the third row of annular nozzles 93 are spray holes forming a rotary cutting angle of 10-30 degrees with the central axis, and the fourth row of annular nozzles 94 are spray holes forming a rotary cutting angle of 20-40 degrees with the central axis.
Further, the second row of annular nozzles 92 are spray holes forming a rotary cutting angle of 5-15 degrees with the central axis, the third row of annular nozzles 93 are spray holes forming a rotary cutting angle of 15-25 degrees with the central axis, and the fourth row of annular nozzles 94 are spray holes forming a rotary cutting angle of 25-30 degrees with the central axis.
The utility model discloses a service condition is, air inlet pipe 2 sets up in 1 lower part arc wall body lateral wall of vault, there is air ring 4 in the 1 lower part arc wall body of vault, gas inlet pipe 3 sets up in the straight section wall body lateral wall of combustor body, straight section wall body has gas ring 5, 5 inboard sides of gas ring are provided with the perpendicular air distribution passageway 6 of circumference equipartition, perpendicular air distribution passageway 6 top and air ring 4 intercommunication, the side one end of perpendicular air distribution passageway 6 is provided with the air duct 8 that is linked together with gas mixture passageway 9, gas ring 5 inboard has the gas duct 7 that is linked together with gas mixture passageway 9, all have the upper and lower four rows of nozzles of annular arrangement on the straight section wall body inside wall of combustor body, gas duct 7, air duct 8, gas mixture passageway 9 is linked together with upper and lower four rows of nozzles, wherein the first row of orifice in upper portion is the straight orifice of vertical combustor central axis, the second row is the orifice that is 8-20 rotary cut angle with the central axis, the third row is the orifice that is 10-30 rotary cut angle with the central axis, the fourth row is 20-40 degree of central axis, the effective mixed gas stream that has not enough solved, the problem of not enough that the mixed burning is not enough, the mixed brick is not enough.
Compared with the prior art, the utility model, have following advantage:
1. the combustor adopts a high-power flameless column flow multi-cyclone combustion technology;
2. the burner nozzle adopts a flameless mixed combustion structure, has no detonation, and cannot be damaged in the mixed combustion process;
3. the air and the coal gas are arranged in a staggered way by adopting two loop column flows, so that the air flow mixing effect is better;
4. the burner nozzles are distributed in four rows of multi-rotational-flow multi-angles (the first row of nozzles are vertically opposite to the axial center for spraying, the second row of nozzles are arranged at an angle of 8-20 degrees, the third row of nozzles are arranged at an angle of 10-30 degrees, and the fourth row of nozzles are arranged at an angle of 20-40 degrees), so that the phenomenon of flow field unevenness formed by rotational flow gas is avoided, after flame spraying of the columnar flow nozzles, the top-down is opposite to the operation distribution of a vortex region, the multi-angle rotational flow gas enables the vortex region to be fully mixed and combusted, the combustion efficiency is improved, and the air surplus coefficient can be controlled to be 1.02-1.05.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and not intended to limit the present invention in any way, and those skilled in the art can make modifications or equivalent variations without departing from the scope of the present invention.
Claims (5)
1. The utility model provides a post flow is low nitrogen burner soon more, including the combustor body, the vault, air inlet pipe and coal gas inlet pipe, a serial communication port, combustor body (10) comprises the arc wall body of vault the latter half and the straight section wall body of connection in the vault below, be provided with air inlet pipe (2) on the arc wall body lateral wall of vault the latter half, be equipped with air ring way (4) in the arc wall body, be provided with coal gas inlet pipe (3) on the straight section wall body lateral wall of vault below, be equipped with coal gas ring way (5) in the straight section wall body, be provided with along the perpendicular and evenly distributed's of circumference air distribution passageway (6) in the inboard wall body of coal gas ring way (5), air distribution passageway (6) top is linked together with air ring way (4), air channel (8) that air distribution passageway (6) side one end is provided with and is linked together with mixed gas passageway (9), be equipped with the coal gas passageway (7) that are linked together with mixed gas passageway (9) in the inboard wall body of coal gas ring way (5), be provided with four rows of upper and lower ring form nozzle (91), (92), (93), (94) on the straight section wall body inside wall.
2. The cylindrical flow multi-cyclone low-nitrogen burner as claimed in claim 1, wherein the mixed gas channels (9) are vertically and uniformly distributed on the inner side wall of the straight wall along the circumferential direction.
3. The cylindrical flow multi-cyclone low-nitrogen burner as claimed in claim 1, wherein the mixed gas channel (9) is communicated with the upper and lower four rows of annular nozzles (91), (92), (93), (94) uniformly arranged on the inner side wall of the straight wall of the burner body (10).
4. The column flow multi-cyclone low-nitrogen burner according to claim 1, wherein the upper and lower four rows of annular nozzles (91), (92), (93), (94) are all communicated with the gas channel (7), the air channel (8) and the mixed gas channel (9), the upper first row of annular nozzles (91) are straight nozzle holes on the central axis of the burner, the second row of annular nozzles (92) are nozzle holes forming a rotary cutting angle of 8-20 degrees with the central axis, the third row of annular nozzles (93) are nozzle holes forming a rotary cutting angle of 10-30 degrees with the central axis, and the fourth row of annular nozzles (94) are nozzle holes forming a rotary cutting angle of 20-40 degrees with the central axis.
5. The plume multi-swirl low-nitrogen burner of claim 4, wherein the second row of annular nozzles (92) are holes at a swirl angle of 5-15 ° with the central axis, the third row of annular nozzles (93) are holes at a swirl angle of 15-25 ° with the central axis, and the fourth row of annular nozzles (94) are holes at a swirl angle of 25-30 ° with the central axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222167589.7U CN218544416U (en) | 2022-08-17 | 2022-08-17 | Column flow multi-cyclone low-nitrogen combustor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222167589.7U CN218544416U (en) | 2022-08-17 | 2022-08-17 | Column flow multi-cyclone low-nitrogen combustor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218544416U true CN218544416U (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222167589.7U Active CN218544416U (en) | 2022-08-17 | 2022-08-17 | Column flow multi-cyclone low-nitrogen combustor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115234908A (en) * | 2022-08-17 | 2022-10-25 | 河南省豫兴热风炉工程技术有限公司 | Column flow multi-rotation low-nitrogen combustor |
-
2022
- 2022-08-17 CN CN202222167589.7U patent/CN218544416U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115234908A (en) * | 2022-08-17 | 2022-10-25 | 河南省豫兴热风炉工程技术有限公司 | Column flow multi-rotation low-nitrogen combustor |
| CN115234908B (en) * | 2022-08-17 | 2025-05-27 | 河南省豫兴热风炉工程技术有限公司 | A column flow multi-swirl low nitrogen burner |
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