CN103712204B - A kind of wall formula for industrial coal powder boiler is arranged direct-flow pulverized coal combustion device - Google Patents
A kind of wall formula for industrial coal powder boiler is arranged direct-flow pulverized coal combustion device Download PDFInfo
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- CN103712204B CN103712204B CN201310673862.6A CN201310673862A CN103712204B CN 103712204 B CN103712204 B CN 103712204B CN 201310673862 A CN201310673862 A CN 201310673862A CN 103712204 B CN103712204 B CN 103712204B
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Abstract
A kind of wall formula for industrial coal powder boiler of the present invention is arranged direct-flow pulverized coal combustion device, belongs to pulverized-coal fired boiler field; Solve the problem of existing industrial coal powder boiler slagging scorification and high temperature corrosion; Comprise body of heater, described body of heater comprises front wall, rear wall and at the inner burner hearth forming of body of heater, front wall is all provided with on rear wall the DC burner that at least one communicates with burner hearth, and the setting that mutually liquidates of the DC burner of front wall and the DC burner of rear wall; The direct-flow pulverized coal combustion technology that the present invention adopts wall formula to arrange, can avoid the slagging scorification causing because of the phenomenon that the circle of contact is excessive, deflection is pasted wall, the combustion system that wall formula is arranged simultaneously, not high to the shape need of section of burner hearth, therefore along with the increase of unit capacity, only need to increase the width of burner hearth, and needn't increase the degree of depth of burner hearth, the capacity of boiler is not subject to the restriction of furnace cross-sectional area, brings a lot of convenience to the layout of back-end surfaces simultaneously.
Description
Technical field
A kind of wall formula for industrial coal powder boiler of the present invention is arranged direct-flow pulverized coal combustion device, belongs to pulverized-coal fired boiler field.
Background technology
Coal burner is the critical component of industrial coal powder boiler combustion apparatus, and its Main Function is to transfer the fuel and air in burner hearth, and organizes rational mixing and burning, and its main evaluation index is efficient, steady combustion, low nitrogen, and prevents the appearance of the situations such as slagging scorification; At present, coal burner is mainly divided into direct current and the large class of eddy flow two, general straight-through pulverized coal burner is arranged on four angles of burner hearth conventionally, form tangential firing, i.e. four jiaos of layouts, vortex burner adopts wall formula arrangement conventionally, though turbulent burner has the product of some independent developments at present in China, and the overall still stage in introducing, digesting, absorb.
The coal-powder boiler of China the most often adopts four jiaos of DC burners to arrange combustion technology, and section of burner hearth requires as square or close to foursquare rectangle, this combustion technology has good flammability, but has following problem simultaneously:
If 1 circle of contact is excessive or deflection is pasted wall, flame is inswept water-cooling wall, can cause slagging scorification;
2,, in the time of load reduction, combustion intensity reduces, and causes combustion flame unstable;
3, in the time that unit capacity increases, arrange for quadrangle tangential circle, stricter to section of burner hearth requirement, be therefore subject to the restriction of burner hearth breadth depth ratio, can not simply maintain the good mixing of primary and secondary air by strengthening the wide mode of stove.
Summary of the invention
The present invention overcomes the deficiency that prior art exists, and has solved the problem of existing industrial coal powder boiler slagging scorification and high temperature corrosion, provides a kind of wall formula for industrial coal powder boiler to arrange direct-flow pulverized coal combustion device.
For solving the problems of the technologies described above, the technical solution adopted in the present invention: a kind of wall formula for industrial coal powder boiler is arranged direct-flow pulverized coal combustion device, comprise body of heater, described body of heater comprises front wall, rear wall and the burner hearth in the inner formation of body of heater, described front wall and the DC burner that at least one is all installed on rear wall communicates with described burner hearth, and the setting that mutually liquidates of the DC burner of front wall and the DC burner of described rear wall.
Described DC burner comprises multiple wind snouts and multiple overfire air port, many one than the quantity of a described wind snout of described overfire air port quantity, and a described wind snout and described secondary divide spout between the upper and lower every setting.
Described front wall and described rear wall are all installed a DC burner.
Described front wall and described rear wall are all installed two DC burners.
The present invention compares with prior art the beneficial effect having.
1, adopt DC burner wall formula to be furnished with to be beneficial to and prevent slagging scorification: the reason that slagging scorification occurs is quadrangle tangential circle while arranging, the circle of contact is excessive or deflection occurs paste wall, flame is inswept water-cooling wall; Or adopt when turbulent burner, wind powder distributes uneven, cause section of burner hearth temperature distributing disproportionation, thereby cause slagging scorification, and the direct-flow pulverized coal combustion technology that described wall formula is arranged can be avoided the slagging scorification causing because of the phenomenon that the circle of contact is excessive, deflection is pasted wall.
2, the combustion system of arranging for wall formula, not high to the shape need of section of burner hearth, therefore along with the increase of unit capacity, only need to increase the width of burner hearth, and needn't increase the degree of depth of burner hearth, the capacity of boiler is not subject to the restriction of furnace cross-sectional area, brings a lot of convenience to the layout of back-end surfaces simultaneously.
3, opposed firing burning can be strengthened disturbance and the mixing of breeze airflow, increases the degree of filling of air-flow in burner hearth; Be more evenly distributed along furnace chamber width thermic load and flue-gas temperature, aspect minimizing left and right sides cigarette temperature deviation, be obviously better than quadrangle tangential circle layout simultaneously.
Brief description of the drawings
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is the main TV structure schematic diagram that a kind of wall formula for industrial coal powder boiler of the present invention is arranged direct-flow pulverized coal combustion device.
Fig. 2 is the plan structure schematic diagram that a kind of wall formula for industrial coal powder boiler of the present invention is arranged direct-flow pulverized coal combustion device.
Fig. 3 is wind snout of DC burner and overfire air port distribution schematic diagram.
In figure, 1 is body of heater, and 11 is front wall, and 12 is rear wall, and 2 is burner hearth, and 3 is DC burner, and 31 is a wind snout, and 32 is overfire air port.
Detailed description of the invention
As shown in Fig. 1-Fig. 3, a kind of wall formula for industrial coal powder boiler is arranged direct-flow pulverized coal combustion device, comprise body of heater 1, described body of heater comprises front wall 11, rear wall 12 and the burner hearth 2 in the inner formation of body of heater, described front wall 11 and the DC burner 3 that at least one is all installed on rear wall 12 communicates with described burner hearth 2, and the setting that mutually liquidates of the DC burner 3 of front wall 11 and the DC burner 3 of described rear wall 12.
Described DC burner 3 comprises multiple wind snouts 31 and multiple overfire air port 32, many one than the quantity of a described wind snout 31 of described overfire air port 32 quantity, and a described wind snout 31 and described secondary divide spout 32 between the upper and lower every setting.
Described front wall and described rear wall are all installed a DC burner 3.
Described front wall and described rear wall are all installed two DC burners 3.
The utility model adopts DC burner wall formula to be furnished with to be beneficial to and prevents slagging scorification: the reason that slagging scorification occurs is quadrangle tangential circle while arranging, and the circle of contact is excessive or deflection occurs paste wall, flame is inswept water-cooling wall; Or adopt when turbulent burner, wind powder distributes uneven, cause section of burner hearth temperature distributing disproportionation, thereby cause slagging scorification, and the direct-flow pulverized coal combustion technology that described wall formula is arranged can be avoided the slagging scorification causing because of the phenomenon that the circle of contact is excessive, deflection is pasted wall.
By reference to the accompanying drawings embodiments of the invention are explained in detail above, but the present invention is not limited to above-described embodiment, in the ken possessing those of ordinary skill in the art, can also under the prerequisite that does not depart from aim of the present invention, makes various variations.
Claims (4)
1. the wall formula for industrial coal powder boiler is arranged direct-flow pulverized coal combustion device, it is characterized in that: comprise body of heater (1), described body of heater comprises front wall (11), rear wall (12) and the burner hearth (2) in the inner formation of body of heater, described front wall (11) and the DC burner (3) that at least one is all installed on rear wall (12) communicates with described burner hearth (2), and the setting that mutually liquidates of the DC burner (3) of front wall (11) and the DC burner (3) of described rear wall (12).
2. a kind of wall formula for industrial coal powder boiler according to claim 1 is arranged direct-flow pulverized coal combustion device, it is characterized in that: described DC burner (3) comprises multiple wind snouts (31) and multiple overfire air port (32), many one than the quantity of a described wind snout (31) of described overfire air port (32) quantity, a described wind snout (31) and described secondary divide spout (32) between the upper and lower every setting.
3. a kind of wall formula for industrial coal powder boiler according to claim 2 is arranged direct-flow pulverized coal combustion device, it is characterized in that: described front wall and described rear wall are all installed a DC burner (3).
4. a kind of wall formula for industrial coal powder boiler according to claim 2 is arranged direct-flow pulverized coal combustion device, it is characterized in that: described front wall and described rear wall are all installed two DC burners (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310673862.6A CN103712204B (en) | 2013-12-13 | 2013-12-13 | A kind of wall formula for industrial coal powder boiler is arranged direct-flow pulverized coal combustion device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310673862.6A CN103712204B (en) | 2013-12-13 | 2013-12-13 | A kind of wall formula for industrial coal powder boiler is arranged direct-flow pulverized coal combustion device |
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| Publication Number | Publication Date |
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| CN103712204A CN103712204A (en) | 2014-04-09 |
| CN103712204B true CN103712204B (en) | 2016-05-11 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005265298A (en) * | 2004-03-18 | 2005-09-29 | Ishikawajima Harima Heavy Ind Co Ltd | Boiler device |
| CA2508380A1 (en) * | 2005-05-26 | 2006-11-26 | Albert D. Larue | Re-oriented over fire air ports for reduction of nox production from pulverized coal-fired burners |
| CN101315184A (en) * | 2008-06-17 | 2008-12-03 | 哈尔滨工业大学 | Wall type arranged horizontal rich-lean direct current combustion device |
| CN101709870A (en) * | 2009-12-25 | 2010-05-19 | 上海锅炉厂有限公司 | Hexagonal or octagonal tangential arrangement of fuel-oil or fuel-gas single-fireball direct-flow combustors |
| CN201954529U (en) * | 2011-03-24 | 2011-08-31 | 河北联合大学 | DC (direct current) combustor layout structure of cut oval pulverized coal fired boiler |
| JP2013002658A (en) * | 2011-06-13 | 2013-01-07 | Ihi Corp | Opposed combustion boiler device |
-
2013
- 2013-12-13 CN CN201310673862.6A patent/CN103712204B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005265298A (en) * | 2004-03-18 | 2005-09-29 | Ishikawajima Harima Heavy Ind Co Ltd | Boiler device |
| CA2508380A1 (en) * | 2005-05-26 | 2006-11-26 | Albert D. Larue | Re-oriented over fire air ports for reduction of nox production from pulverized coal-fired burners |
| CN101315184A (en) * | 2008-06-17 | 2008-12-03 | 哈尔滨工业大学 | Wall type arranged horizontal rich-lean direct current combustion device |
| CN101709870A (en) * | 2009-12-25 | 2010-05-19 | 上海锅炉厂有限公司 | Hexagonal or octagonal tangential arrangement of fuel-oil or fuel-gas single-fireball direct-flow combustors |
| CN201954529U (en) * | 2011-03-24 | 2011-08-31 | 河北联合大学 | DC (direct current) combustor layout structure of cut oval pulverized coal fired boiler |
| JP2013002658A (en) * | 2011-06-13 | 2013-01-07 | Ihi Corp | Opposed combustion boiler device |
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| CN103712204A (en) | 2014-04-09 |
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Effective date of registration: 20210302 Address after: 044600 north side of Gongye East Street, Ruicheng County, Yuncheng City, Shanxi Province Patentee after: Ruicheng Fengyun Thermal Power Co.,Ltd. Address before: 034016 north of Caojiazhuang village, Yijing Township, Xinfu District, Xinzhou City, Shanxi Province Patentee before: SHANXI LANTIAN ENVIRONMENTAL PROT EQUIPMENT Co.,Ltd. |