CN201935184U - Stable-combustion environment-friendly cyclone pulverized coal burner - Google Patents
Stable-combustion environment-friendly cyclone pulverized coal burner Download PDFInfo
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- CN201935184U CN201935184U CN2011200096241U CN201120009624U CN201935184U CN 201935184 U CN201935184 U CN 201935184U CN 2011200096241 U CN2011200096241 U CN 2011200096241U CN 201120009624 U CN201120009624 U CN 201120009624U CN 201935184 U CN201935184 U CN 201935184U
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Abstract
The utility model relates to the technical field of combustion, in particular to a stable-combustion environment-friendly cyclone pulverized coal burner, which is characterized in that a boiler primary air duct (1) is connected with a primary air pipe (3), a central pipe (2) is horizontally arranged in the center of the primary air pipe (3), an oil gun (15) is installed in the central pipe (2), a multilayer conical pulverized coal separation device (4) is arranged between the outer wall of the central pipe (2) and the inner wall of the primary air pipe (3), the primary air pipe (3) is connected with a thick primary air pipe (5) and a thin primary air pipe (6), the thick primary air pipe (5) is coaxially arranged in the thin primary air pipe (6), and a primary air cyclone (13) is arranged between the thick primary air pipe (5) and the thin primary air pipe (6). The stable-combustion environment-friendly cyclone pulverized coal burner has the advantages that the coal adaptability and the load adaptability of the burner are good, and stable combustion and low-pollution combustion can be ensured within a wide coal range and a wide load range.
Description
Technical field:
The utility model relates to field of combustion technology, is specifically related to the vortex burner of a kind of steady combustion, environmental protection.
Background technology:
Coal is the main energy sources of China, and coal accounts for more than 70 percent of China's energy demand total amount at present.Present coal supply anxiety, the medium of steam coal be difficult to guarantee that coal changes greatly, along with coal is constantly exploited medium and is continuous downward trend.Cause combustion instability when boiler at low load on the one hand, need to throw great amount of fuel oil, ash erosion is serious when the boiler high load capacity on the other hand, has a strong impact on the safety and economic operation of boiler.Country is more and more stricter to environmental requirement in addition, requires the NOx discharge capacity of coal burner to reduce.Though present many turbulent burners are all right to bituminous coal, the contour volatility coal of brown coal combustion case, to low volatility coals such as meager coal, anthracite catch fire and low load stable combustion all undesirable, need to drop into great amount of fuel oil.
The utility model content:
The purpose of this utility model provides the vortex burner of a kind of steady combustion, environmental protection, and it can make burner that coal adaptability and load adaptability are preferably arranged, and can guarantee smooth combustion and combustion with reduced pollutants in the coal of broad, load range.
In order to solve the existing problem of background technology, the utility model is by the following technical solutions: it comprises air channel 1 of boiler, central tube 2, airduct 3, multilayer awl coal dust disconnecting gear 4, a dense airduct 5, a light airduct 6, support chip 7, secondary air duct 8, swirl secondary air adjustment doors 9, direct current secondary wind adjustment doors 10, direct current secondary air channel 11, swirl secondary air pipe 12, wind cyclone 13, secondary wind cyclone 14 and an oil gun 15; Air channel 1 of boiler is connected with an airduct 3, one time airduct 3 centers have been horizontally disposed with central tube 2, oil gun 15 is housed in the central tube 2, be provided with multilayer awl coal dust disconnecting gear 4 between central tube 2 outer walls and airduct 3 inwalls, one time airduct 3 is connected with a light airduct 6 with a dense airduct 5, an and dense airduct 5 coaxial being arranged in the light airduct 6, be provided with wind cyclone 13 one time between a dense airduct 5 and the light airduct 6, be provided with support chip 7 between a dense airduct 5 and the central tube 2, light airduct 6 arranged outside have swirl secondary air pipe 12, swirl secondary air pipe 12 arranged outside have direct current secondary air channel 11, and direct current secondary air channel 11 is connected with secondary air duct 8 with swirl secondary air pipe 12 upper ends, swirl secondary air pipe 12 inner upper end are provided with swirl secondary air adjustment doors 9, the inner upper end of direct current secondary air channel 11 is provided with direct current secondary wind adjustment doors 10, is provided with secondary wind cyclone 14 between a swirl secondary air pipe 12 and the light airduct 6.
Be provided with thin powdered coal 16 in the described airduct 3.
Form a dense air channel between a described central tube 2 and the dense airduct 5, form a light air channel between a dense airduct 5 and the light airduct 6, form the swirl secondary air road between a light airduct 6 and the swirl secondary air pipe 12, form the direct current secondary air duct between swirl secondary air pipe 12 and the direct current secondary air channel 11.
Described oil gun 15 is movable pullable type oil gun;
Described multilayer awl coal dust disconnecting gear 4 is adjustable multilayer awl coal dust disconnecting gear, and each bores sheet and the central axis angle is the 15-35 degree.
Described swirl secondary air road and direct current secondary air duct can be arranged to independent ventiduct, and respectively establish adjustment doors.
Described central tube 2 ends are provided with gear type structure 2-1, can connect various stabilizers.
The spout of a described dense air channel, a light air channel, swirl secondary air road and direct current secondary air duct is enlarging, and angle of flare is the 15-20 degree.
Described swirl secondary air adjustment doors 9 can be regulated the ratio of swirl secondary air and direct current secondary wind to adapt to the requirement of different coal different loads with direct current secondary wind adjustment doors 10.
The utility model has been realized coal dust at the burner center, wind, secondary wind gradually externally, thereby around the burner region water-cooling wall, form stronger oxidisability zone, can prevent effectively that slagging scorification and high temperature corrosion phenomenon from taking place.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the utility model center tube structure schematic diagram.
The specific embodiment:
Referring to Fig. 1-2, this specific embodiment is by the following technical solutions: it comprises air channel 1 of boiler, central tube 2, airduct 3, multilayer awl coal dust disconnecting gear 4, a dense airduct 5, a light airduct 6, support chip 7, secondary air duct 8, swirl secondary air adjustment doors 9, direct current secondary wind adjustment doors 10, direct current secondary air channel 11, swirl secondary air pipe 12, wind cyclone 13, secondary wind cyclone 14 and an oil gun 15; Air channel 1 of boiler is connected with an airduct 3, one time airduct 3 centers have been horizontally disposed with central tube 2, oil gun 15 is housed in the central tube 2, be provided with multilayer awl coal dust disconnecting gear 4 between central tube 2 outer walls and airduct 3 inwalls, one time airduct 3 is connected with a light airduct 6 with a dense airduct 5, an and dense airduct 5 coaxial being arranged in the light airduct 6, be provided with wind cyclone 13 one time between a dense airduct 5 and the light airduct 6, be provided with support chip 7 between a dense airduct 5 and the central tube 2, light airduct 6 arranged outside have swirl secondary air pipe 12, swirl secondary air pipe 12 arranged outside have direct current secondary air channel 11, and direct current secondary air channel 11 is connected with secondary air duct 8 with swirl secondary air pipe 12 upper ends, swirl secondary air pipe 12 inner upper end are provided with swirl secondary air adjustment doors 9, the inner upper end of direct current secondary air channel 11 is provided with direct current secondary wind adjustment doors 10, is provided with secondary wind cyclone 14 between a swirl secondary air pipe 12 and the light airduct 6.
Be provided with thin powdered coal 16 in the described airduct 3.
Form a dense air channel between a described central tube 2 and the dense airduct 5; Form a light air channel between a described dense airduct 5 and the light airduct 6; Form the swirl secondary air road between a described light airduct 6 and the swirl secondary air pipe 12; Form the direct current secondary air duct between described swirl secondary air pipe 12 and the direct current secondary air channel 11.
Described oil gun 15 is movable pullable type oil gun;
Described multilayer awl coal dust disconnecting gear 4 is adjustable multilayer awl coal dust disconnecting gear, and each bores sheet and the central axis angle is the 15-35 degree.
Described swirl secondary air road and direct current secondary air duct can be arranged to independent ventiduct, and respectively establish adjustment doors.
Described central tube 2 ends are provided with gear type structure 2-1, can connect various stabilizers.
The spout of a described dense air channel, a light air channel, swirl secondary air road and direct current secondary air duct is enlarging, and angle of flare is the 15-20 degree.
Described swirl secondary air adjustment doors 9 can be regulated the ratio of swirl secondary air and direct current secondary wind to adapt to the requirement of different coal different loads with direct current secondary wind adjustment doors 10.
When a general mood stream that carries coal dust passes through burner, at first separate dense outer light two strands of air-flows in the formation through multilayer awl coal dust disconnecting gear.The thick coal culm air communication at center is crossed a dense air channel that links to each other with airduct and is entered the combustion chamber spout, and the thin powdered coal air communication in the outside is crossed a light air channel and entered the combustion chamber spout.A wind cyclone in the light air channel rotates thin powdered coal, forms the recirculating zone in the burner center.Oil gun stretches into the thick coal culm district.Because the thick coal culm ignition temperature is low, the heat that needs is few, so be easy to catch fire, and in second half section and the mixed combustion of thin powdered coal air-flow. simultaneously because the rotation of thin powdered coal air-flow, entrainment the further heat effect of the heat of coming in, can make and catch fire in advance, improve efficiency of combustion, and smooth combustion when boiler at low load.A large amount of like this throwing oil that reduced when using oil mass and underload when lighting a fire.Reduce operating cost, increase economic efficiency.
This specific embodiment mainly is adapted to the coal burner of coal-burning boiler, and this burner has coal adaptability and load adaptability preferably, can smooth combustion when underload, and saving great amount of fuel oil when igniting and underload.The discharging that this burner has lower minimizing NOx can realize combustion with reduced pollutants, reaches environmental requirement.The simultaneously meager coal of this burner incendivity low-volatile and anthracite etc. can and become under the coal situation smooth combustion and prevent the boiler water wall coking and the high temperature corrosion phenomenon at various operating conditions, should be widely promoted.
Claims (6)
1. the vortex burner of a steady combustion, environmental protection is characterized in that it comprises an air channel of boiler (1), central tube (2), an airduct (3), multilayer awl coal dust disconnecting gear (4), a dense airduct (5), a light airduct (6), support chip (7), secondary air duct (8), swirl secondary air adjustment doors (9), direct current secondary wind adjustment doors (10), direct current secondary air channel (11), swirl secondary air pipe (12), a wind cyclone (13), secondary wind cyclone (14) and oil gun (15); An air channel of boiler (1) is connected with an airduct (3), an airduct (3) center has been horizontally disposed with central tube (2), oil gun (15) is housed in the central tube (2), be provided with multilayer awl coal dust disconnecting gear (4) between central tube (2) outer wall and an airduct (3) inwall, an airduct (3) is connected with a light airduct (6) with a dense airduct (5), and a dense airduct (5) is coaxial to be arranged in the light airduct (6), be provided with a wind cyclone (13) between a dense airduct (5) and the light airduct (6), be provided with support chip (7) between a dense airduct (5) and the central tube (2), a light airduct (6) arranged outside has swirl secondary air pipe (12), swirl secondary air pipe (12) arranged outside has direct current secondary air channel (11), and direct current secondary air channel (11) is connected with secondary air duct (8) with swirl secondary air pipe (12) upper end, swirl secondary air pipe (12) inner upper end is provided with swirl secondary air adjustment doors (9), the inner upper end of direct current secondary air channel (11) is provided with direct current secondary wind adjustment doors (10), is provided with secondary wind cyclone (14) between a swirl secondary air pipe (12) and the light airduct (6).
2. the vortex burner of a kind of steady combustion according to claim 1, environmental protection is characterized in that being provided with in the described airduct (3) thin powdered coal (16).
3. the vortex burner of a kind of steady combustion according to claim 1, environmental protection, it is characterized in that forming between a described central tube (2) and the dense airduct (5) a dense air channel, form a light air channel between a dense airduct (5) and the light airduct (6), form the swirl secondary air road between a light airduct (6) and the swirl secondary air pipe (12), form the direct current secondary air duct between swirl secondary air pipe (12) and the direct current secondary air channel (11); Described swirl secondary air road and direct current secondary air duct are arranged to independent ventiduct, and respectively establish adjustment doors; The spout of a described dense air channel, a light air channel, swirl secondary air road and direct current secondary air duct is enlarging, and angle of flare is the 15-20 degree.
4. the vortex burner of a kind of steady combustion according to claim 1, environmental protection is characterized in that described oil gun (15) is movable pullable type oil gun.
5. the vortex burner of a kind of steady combustion according to claim 1, environmental protection it is characterized in that described multilayer awl coal dust disconnecting gear (4) is adjustable multilayer awl coal dust disconnecting gear, and each bores sheet and the central axis angle is the 15-35 degree.
6. the vortex burner of a kind of steady combustion according to claim 1, environmental protection is characterized in that described central tube (2) end is provided with gear type structure (2-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200096241U CN201935184U (en) | 2011-01-13 | 2011-01-13 | Stable-combustion environment-friendly cyclone pulverized coal burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200096241U CN201935184U (en) | 2011-01-13 | 2011-01-13 | Stable-combustion environment-friendly cyclone pulverized coal burner |
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| Publication Number | Publication Date |
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| CN201935184U true CN201935184U (en) | 2011-08-17 |
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| CN2011200096241U Expired - Fee Related CN201935184U (en) | 2011-01-13 | 2011-01-13 | Stable-combustion environment-friendly cyclone pulverized coal burner |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566358A (en) * | 2013-10-29 | 2015-04-29 | 烟台龙源电力技术股份有限公司 | Pulverized coal burner and boiler |
| CN105864750A (en) * | 2016-04-19 | 2016-08-17 | 上海理工大学 | Rotational-flow low-nitrogen combustor for combined combustion of chain boiler |
| CN105953225A (en) * | 2016-06-23 | 2016-09-21 | 王鹏钊 | Pulverized coal burner |
| CN110319436A (en) * | 2019-06-15 | 2019-10-11 | 沈阳环境科学研究院 | A kind of deep or light classification vortex burner of compact |
| CN111365712A (en) * | 2020-03-16 | 2020-07-03 | 清华大学 | Stable combustion cyclone burner based on similar quasi-side and operation method thereof |
-
2011
- 2011-01-13 CN CN2011200096241U patent/CN201935184U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566358A (en) * | 2013-10-29 | 2015-04-29 | 烟台龙源电力技术股份有限公司 | Pulverized coal burner and boiler |
| WO2015062455A1 (en) * | 2013-10-29 | 2015-05-07 | 烟台龙源电力技术股份有限公司 | Pulverised coal burner and boiler |
| CN104566358B (en) * | 2013-10-29 | 2017-02-08 | 烟台龙源电力技术股份有限公司 | Pulverized coal burner and boiler |
| CN105864750A (en) * | 2016-04-19 | 2016-08-17 | 上海理工大学 | Rotational-flow low-nitrogen combustor for combined combustion of chain boiler |
| CN105953225A (en) * | 2016-06-23 | 2016-09-21 | 王鹏钊 | Pulverized coal burner |
| CN105953225B (en) * | 2016-06-23 | 2023-12-22 | 王鹏钊 | Pulverized coal burner |
| CN110319436A (en) * | 2019-06-15 | 2019-10-11 | 沈阳环境科学研究院 | A kind of deep or light classification vortex burner of compact |
| CN111365712A (en) * | 2020-03-16 | 2020-07-03 | 清华大学 | Stable combustion cyclone burner based on similar quasi-side and operation method thereof |
| CN111365712B (en) * | 2020-03-16 | 2021-06-04 | 清华大学 | Stable combustion cyclone burner based on similar quasi-side and operation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20160113 |