CN202303361U - United combustion intensification IC (internal combustion) type ignition and main pulverized coal combustion device - Google Patents
United combustion intensification IC (internal combustion) type ignition and main pulverized coal combustion device Download PDFInfo
- Publication number
- CN202303361U CN202303361U CN 201120207991 CN201120207991U CN202303361U CN 202303361 U CN202303361 U CN 202303361U CN 201120207991 CN201120207991 CN 201120207991 CN 201120207991 U CN201120207991 U CN 201120207991U CN 202303361 U CN202303361 U CN 202303361U
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- China
- Prior art keywords
- combustion
- pulverized coal
- ignition
- coal
- firing chamber
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- 239000003245 coal Substances 0.000 title claims abstract description 54
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 41
- 239000002817 coal dust Substances 0.000 claims description 31
- 238000010304 firing Methods 0.000 claims description 31
- 239000003921 oil Substances 0.000 abstract description 10
- 239000000295 fuel oil Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract 1
- 230000006641 stabilisation Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 12
- 239000000470 constituent Substances 0.000 description 5
- 238000007664 blowing Methods 0.000 description 3
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 2
- 239000003830 anthracite Substances 0.000 description 2
- 239000002802 bituminous coal Substances 0.000 description 2
- 239000003077 lignite Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Combustion Of Fluid Fuel (AREA)
Abstract
A united combustion intensification IC (internal combustion) type ignition and main pulverized coal combustion device mainly comprises an annular separation device, two ignition guns, a pulverized coal combustion intensification chamber, and a graded combustion cylinder. The two ignition guns are inserted into the pulverized coal combustion intensification chamber from the rear part or side surfaces of the pulverized coal combustion device. The pulverized coal combustion intensification chamber is provided with three types of structures: (1) both of the two high-strength ignition guns are inserted into the pulverized coal combustion device from the rear part; (2) both of the two high-strength ignition guns are inserted into the pulverized coal combustion device from the side surfaces; and (3) one high-strength ignition gun is inserted into the pulverized coal combustion device from the rear part, and the other high-strength ignition gun is inserted into the pulverized coal combustion device from one side surface. When the coal type used in the boil combustion has higher volatile matter, one high-strength ignition gun is enough to meet the ignition requirement; and when the coal type used in the boil combustion has very low volatile matter, two high-strength ignition guns are enough to meet the ignition requirement. Fuel oil can be greatly saved in the processes of boiler starting and ignition, boiler stopping and combustion supporting, as well as low-load combustion stabilization of the pulverized coal boiler, and about 80%-100% of oil can be saved.
Description
Technical field
The utility model relates to a kind of burner, especially a kind ofly is used for combined reinforced burning internal-combustion igniter and main pulverized coal burner.
Background technology
General sparking mode was when generating plant pulverized coal boiler started at present: (be commonly called as a kerosene (gas) rifle, single Oil Gun is 0.8～5t/h, and it is 800～3000Nm that single air gun is exerted oneself to put fuel oil (gas) burner with igniter earlier
3/ h) carry out boiler intensification, boost, when boiler parameter reaches when throwing the coal dust requirement, start pulverized coal preparation system and put into operation coal burner, realize load carrying.General when boiler load is reduced to 50% left and right sides, also must throw the steady combustion of oil (gas) and could guarantee that boiler normally moves.For example: the pulverized-coal fired boiler of a 300MW capacity, cold start once use the about 100t of oil (with the about 64000Nm of natural gas
3), also need start oil (gas) rifle during underload and surely fire, it is combustion-supporting also need to start oil (gas) rifle during blowing out.Combustion-supporting and the low-load combustion-stabilizing of starting ignition, the blowing out of annual station boiler need consume a large amount of fuel oil (gas).
Summary of the invention
The purpose of the utility model is the weak point that overcomes in the prior art, provide a kind of simple in structure, need not special-purpose igniter, avoid load carrying, easy to operate, effective combined reinforced burning internal-combustion igniter and main pulverized coal burner.
For realizing above-mentioned purpose; The burner of the utility model; Comprise the air channel one time; The ring-separators that links to each other with air channel is provided with coal dust overheavy firing chamber and fractional combustion tube in the ring-separators, coal dust overheavy firing chamber is provided with two burning torches by plasma generator and oil burner or plasma generator and gas burner igniting linked together.
Level of described two burning torches, an inclination are located at the afterbody of coal dust overheavy firing chamber respectively; Described two burning torch inclination symmetries are located at both sides, rear portion, coal dust overheavy firing chamber; Afterbody that is located at coal dust overheavy firing chamber (4) of described two burning torches, another inclination is located at the sidepiece of coal dust overheavy firing chamber.
Beneficial effect: adopt two burning torch associating ignition structures; To be heated to the ignition temperature of coal dust through the primary wind and powder of coal burner overheavy firing chamber in coal burner inside; Make fugitive constituent in the coal dust separate out rapidly and burn; Simultaneously carbon granule is added thermal ignition, form the high temperature torch, spray the entering burner hearth.Wind of light phase around the overheavy firing chamber cools off overheavy firing chamber and coal burner spout on the one hand; Provide the dense phase pulverized coal subsequent combustion needed partial oxygen amount on the other hand; And in the process of mixing, make the microfine coal burning in wind of light phase, increase the burn-off rate of coal dust.The coal dust of this combined reinforced burning internal combustion type pulverized coal burner is exerted oneself and can be reached 2～20t/h, and suitable coal is bituminous coal, brown coal, meager coal and anthracite etc.General if with 4～8 of a boiler (because of the boiler capacity size different) coal burner is designed to this type overheavy firing internal-combustion igniter and main pulverized coal burner; Just can satisfy ignition of the boiler and steady combustion requirement, thereby reach the boiler startup igniting, blowing out is combustion-supporting and need not oil (gas) or few purpose with oil (gas) this saving and alternative fuel oily (gas) during low-load combustion-stabilizing.Fuel-economizing (gas) rate can reach 80～100%.When boiler normally moved, this burner also can be used as main pulverized coal burner and uses, and need not to switch wind powder method of supplying.When boiler uses the fugitive constituent of coal when higher, a high intensity points firelock that can only put into operation wherein just can satisfy the igniting requirement, and when boiler uses the fugitive constituent of coal when very low, two the high intensity points firelocks that put into operation just can satisfy the igniting requirement.When the overheavy firing internal-combustion igniter and main pulverized coal burner moves as main pulverized coal burner; Because the indoor primary air velocity of coal dust overheavy firing is little with not changing with the primary air velocity of the coal burner of coal dust overheavy firing chamber of being complementary with it, it is exerted oneself and resistance also changes not quite.The present invention is adapted to use various coals, ature of coal changes pulverized-coal fired boiler greatly, guarantees not slagging scorification of combustion chamber, does not ablate, resistance to wears, reliable, small investment, operating cost be low, has adaptability widely.
Description of drawings
Fig. 1 is embodiment one structural representation of the utility model.
Fig. 2 is embodiment two structural representations of the utility model.
Fig. 3 is embodiment three structural representations of the utility model.
Among the figure: 1. air channel, 2-burning torch, 3-ring-separators, 4-coal dust overheavy firing chamber, 5-fractional combustion tube.
The specific embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done further description:
Embodiment one, as shown in Figure 1, the combined reinforced burning internal-combustion igniter and main pulverized coal burner of pulverized-coal fired boiler mainly by, two high-intensity burning torches 2, ring-separators 3, coal dust overheavy firing chamber 4, fractional combustion tubes 5 form.Ring-separators 3 links to each other with an air channel 1; Be provided with coal dust overheavy firing chamber 4 and fractional combustion tube 5 in the ring-separators 3, coal dust overheavy firing chamber 4 is provided with two high-intensity burning torches 2 by plasma generator and oil burner or plasma generator and gas burner igniting linked together.2 one levels of two burning torches, an inclination are located at the afterbody of coal dust overheavy firing chamber 4 respectively.Two high intensity points firelocks 2 insert coal dust overheavy firing chamber 4 from the rear portion in an air channel 1; The angle of single high intensity points firelock 2 body center lines and coal dust overheavy firing chamber 4 center lines is 0～90 °, and high-intensity burning torch 2 outlets are 1～4 meter with the distance range of coal dust overheavy firing chamber 4 outlets.
When boiler uses the fugitive constituent of coal when higher, two burning torches 2 can only just can satisfy the igniting requirement with one of them, and when boiler uses the fugitive constituent of coal when very low, two burning torches 2 use simultaneously and just can satisfy the igniting requirement.Adopt the coal dust overheavy firing chamber of different structure and the high intensity points firelock of different types according to the ignition temperature of different coals and the actual conditions of boiler; Different coal dusts is heated to its ignition temperature; Promptly realize the lighting of bituminous coal, brown coal, meager coal, anthracite, mixed coal realized the protection to coal burner simultaneously.
Embodiment two, as shown in Figure 2, the combined reinforced burning internal-combustion igniter and main pulverized coal burner of pulverized-coal fired boiler, basic identical with embodiment one, something in common is slightly.Difference: two high intensity points firelocks 2 inclination symmetries are located at the both sides, rear portion of coal dust overheavy firing chamber 4, and promptly two high intensity points firelocks 2 all insert from the side.
Embodiment three, as shown in Figure 3, the combined reinforced burning internal-combustion igniter and main pulverized coal burner of pulverized-coal fired boiler, basic identical with embodiment one, something in common is slightly.Difference: two 2 one in high intensity points firelocks are located at the afterbody of coal dust overheavy firing chamber 4, and another inclination is located at the sidepiece of coal dust overheavy firing chamber 4, and promptly a high intensity points firelock inserts from the rear portion, and a high intensity points firelock inserts from the side.
Claims (4)
1. combined reinforced burning internal-combustion igniter and main pulverized coal burner; It is characterized in that: comprise an air channel (1), the ring-separators (3) that links to each other with an air channel (1); Be provided with coal dust overheavy firing chamber (4) and fractional combustion tube (5) in the ring-separators (3), coal dust overheavy firing chamber (4) is provided with two burning torches (2) by plasma generator and oil burner or plasma generator and gas burner igniting linked together.
2. combined reinforced burning internal-combustion igniter and main pulverized coal burner according to claim 1 is characterized in that: (2) levels of described two burning torches, an inclination are located at the afterbody of coal dust overheavy firing chamber (4) respectively.
3. combined reinforced burning internal-combustion igniter and main pulverized coal burner according to claim 1 is characterized in that: described two burning torches (2) inclination symmetry is located at both sides, rear portion, coal dust overheavy firing chamber (4).
4. combined reinforced burning internal-combustion igniter and main pulverized coal burner according to claim 1; It is characterized in that: (2) afterbodys that are located at coal dust overheavy firing chamber (4) of described two burning torches, another inclination is located at the sidepiece of coal dust overheavy firing chamber (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120207991 CN202303361U (en) | 2011-06-20 | 2011-06-20 | United combustion intensification IC (internal combustion) type ignition and main pulverized coal combustion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120207991 CN202303361U (en) | 2011-06-20 | 2011-06-20 | United combustion intensification IC (internal combustion) type ignition and main pulverized coal combustion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202303361U true CN202303361U (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120207991 Expired - Lifetime CN202303361U (en) | 2011-06-20 | 2011-06-20 | United combustion intensification IC (internal combustion) type ignition and main pulverized coal combustion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202303361U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090380A (en) * | 2013-01-09 | 2013-05-08 | 向卫 | Plasma oilless oxygen enrichment pulverized coal combustion device |
| CN110285410A (en) * | 2019-06-25 | 2019-09-27 | 徐州科融环境资源股份有限公司 | A kind of rush-harvesting and rush-planting Plasma powdered-coal burner |
-
2011
- 2011-06-20 CN CN 201120207991 patent/CN202303361U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103090380A (en) * | 2013-01-09 | 2013-05-08 | 向卫 | Plasma oilless oxygen enrichment pulverized coal combustion device |
| CN110285410A (en) * | 2019-06-25 | 2019-09-27 | 徐州科融环境资源股份有限公司 | A kind of rush-harvesting and rush-planting Plasma powdered-coal burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 221004 No. 12 Yang Shan Road, Xuzhou Economic Development Zone, Jiangsu, China Patentee after: XUZHOU KERONG ENVIRONMENTAL RESOURCES CO., LTD. Address before: 221004 No. 12 Yang Shan Road, Xuzhou Economic Development Zone, Jiangsu, China Patentee before: Xuzhou Combustion Control Research Institute Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |
|
| CX01 | Expiry of patent term |