CN102489145A - Desulphurization absorbing tower with refracted flow type double-phase rectifying device - Google Patents
Desulphurization absorbing tower with refracted flow type double-phase rectifying device Download PDFInfo
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- CN102489145A CN102489145A CN2011104471221A CN201110447122A CN102489145A CN 102489145 A CN102489145 A CN 102489145A CN 2011104471221 A CN2011104471221 A CN 2011104471221A CN 201110447122 A CN201110447122 A CN 201110447122A CN 102489145 A CN102489145 A CN 102489145A
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- absorbing tower
- flue gas
- desulfuration absorbing
- bias current
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Abstract
The invention discloses a desulphurization absorbing tower with a refracted flow type double-phase rectifying device. The invention comprises a desulphurization absorbing tower; a flue gas inlet is provided on the desulphurization absorbing tower, a spray layer is provided in the desulphurization absorbing tower, a refracted flow type double-phase rectifying device is provided between the spray layer in the desulphurization absorbing tower and the flue gas inlet and comprises a horizontally arranged rectifying plate, the rectifying plate is perpendicular to the flow direction of the flue gas inlet and is divided into different areas, the rectifying plate in each of the areas is provided with sieve meshes, and sieve meshes which are close to a flue gas inlet area have a density greater than sieve meshes which are far away from the flue gas inlet area do. According to the invention, when flue gas enters into the desulphurization absorbing tower, distribution of the flue gas is nonuniform, and sieve meshes in an area with a low concentration of the flue gas and a low flow velocity have a density greater than sieve meshes in an area with a high concentration of the flue gas and a high flow velocity do; therefore, flue gas resistance in each area of the rectifying plate is different, and the flue gas is rectified and uniformly distributed when passing through the rectifying plate, thereby enabling the flue gas to be uniformly distributed and desulphurization efficiency to be improved.
Description
Technical field
The invention belongs to the flue gases purification field, be specifically related to a kind of desulfuration absorbing tower with bias current formula biphase rectification device.
Background technology
Coal fired power generation is one of main path of coal utilization, and coal-fired fired power generating unit need be discharged a large amount of pollutants, wherein SO
2And dust is comparatively serious to the harm of environment, also is the major pollutants that need emphasis control.Thereby, need desulphurization system be set at the fume emission place of coal fired power generation.Flue gas desulfurization technique comprises wet desulphurization and dry desulfurization etc., and wherein the utilization of wet desulphurization technology is the most extensive.The principle of wet flue gas desulfurization absorption tower is to utilize the lime stone alkaline slurry to spray from the top down, and flue gas flows from bottom to top, and lime stone slurry drops in the SO that absorbs in the dropping process in the flue gas
2, generate byproducts such as gypsum, reach the SO that removes in the flue gas
2Purpose.
In wet desulfurizing process, the key of technology is even distribution and the flue gas of flue gas in desulfuration absorbing tower and fully the contacting of lime stone slurry; When flue gas gets in the desulfuration absorbing tower,, low in the smoke inlet side concentration of desulfuration absorbing tower, flow velocity is low because the inertia of flue gas can make smoke distribution inhomogeneous; High in smoke inlet opposite side concentration, flow velocity is high; Therefore, because the skewness of flue gas causes the time of contact of flue gas and lime stone slurry inhomogeneous; The gas-liquid mass transfer poor effect influences desulfurized effect.
Summary of the invention
In view of this, the invention provides a kind of desulfuration absorbing tower with bias current formula biphase rectification device, can carry out rectification to flue gas, make smoke distribution even, the time of contact of flue gas and lime stone slurry is even, improves desulfuration efficiency.
The desulfuration absorbing tower of band bias current formula biphase rectification device of the present invention; Comprise desulfuration absorbing tower; Said desulfuration absorbing tower is provided with smoke inlet; Be provided with spraying layer in the desulfuration absorbing tower, be provided with bias current formula biphase rectification device between spraying layer and the smoke inlet in the said desulfuration absorbing tower, said bias current formula biphase rectification device comprises horizontally disposed cowling panel; Said cowling panel flows to the zoning perpendicular to smoke inlet, all have sieve aperture on each regional cowling panel and near the sieve aperture density in smoke inlet zone greater than sieve aperture density away from the smoke inlet zone.
Further, each said zone is divided into a plurality of rectification units, is provided with upwardly extending flow-stopping plate around the cowling panel of each rectification unit;
Further, the cowling panel of said rectification unit middle part is provided with upwardly extending downflow weir, and said downflow weir is divided into rectification unit the desulfurization part and falls the liquid part, and the height of said downflow weir is lower than the height of flow-stopping plate;
Further, said bias current formula biphase rectification device is fixed in the desulfuration absorbing tower inwall through brace summer;
Further, said desulfuration absorbing tower is circular tower, square list tower or U type squarer.
Beneficial effect of the present invention is: the present invention is provided with bias current formula biphase rectification device in desulfuration absorbing tower; The inhomogeneities of smoke distribution when getting into desulfuration absorbing tower according to flue gas; The cowling panel of bias current formula biphase rectification device is divided into a plurality of zones, and the sieve aperture density in the zone that flue gas concentration is low, flow velocity is low is greater than the sieve aperture density in the zone that flue gas concentration is high, flow velocity is high, so each regional flue gas resistance of cowling panel is different; Flue gas is uniformly distributed with by rectification during through cowling panel; Thereby make smoke distribution even, the time of contact of flue gas and lime stone slurry is even, has improved desulfuration efficiency.
In addition; The present invention is provided with flow-stopping plate in each zone, and each zone is divided into a plurality of rectification units, and lime stone slurry is ejected in the rectification unit with flue gas through sieve aperture output and contacts the generation froth bed; Lather collapse forms droplet; Increased the gas-liquid mass transfer face, formed disturbance simultaneously, thereby made flue gas and lime stone slurry react more abundant.
Description of drawings
In order to make the object of the invention, technical scheme and advantage clearer, will combine accompanying drawing that the present invention is made further detailed description below, wherein:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the zone of cowling panel and the distribution schematic diagram of rectification unit;
Fig. 3 is the structural representation of rectification unit.
The specific embodiment
Below will carry out detailed description to the preferred embodiments of the present invention with reference to accompanying drawing.
Fig. 1 is a structural representation of the present invention; Fig. 2 is the zone of cowling panel and the distribution schematic diagram of rectification unit; As shown in the figure, the desulfuration absorbing tower of band bias current formula biphase rectification device of the present invention comprises desulfuration absorbing tower 1; Said desulfuration absorbing tower 1 is provided with smoke inlet 2; Be provided with spraying layer 3 in the desulfuration absorbing tower 1, be provided with bias current formula biphase rectification device 4 between spraying layer 3 and the smoke inlet 2 in the said desulfuration absorbing tower 1, said bias current formula biphase rectification device 4 comprises horizontally disposed cowling panel 5; Said cowling panel 5 flows to the zoning perpendicular to smoke inlet, all have sieve aperture on each regional cowling panel 5 and near the sieve aperture density in smoke inlet 2 zones greater than sieve aperture density away from smoke inlet 2 zones.
In the present embodiment, as shown in Figure 2, cowling panel 5 flows to perpendicular to the smoke inlet shown in the arrow and is divided into A, B, three zones of C; Because the effect of inertia of flue gas; A-quadrant flue gas concentration near smoke inlet is low, flow velocity is low, and is high away from C zone flue gas concentration height, the flow velocity of smoke inlet, and the sieve aperture density of a-quadrant is greater than the sieve aperture density (flue gas resistance that is the a-quadrant is less than the B zone) in B zone; The sieve aperture density in B zone is greater than the sieve aperture density (flue gas resistance that is the B zone is less than the C zone) in C zone; Flue gas resistance when therefore flue gas is through cowling panel 5 each zones is different, thereby is uniformly distributed with by rectification, makes smoke distribution even; The time of contact of flue gas and lime stone slurry is even, has improved desulfuration efficiency.Certainly, cowling panel is not limited in and is divided into three zones, can be divided into a plurality of zones according to actual conditions.
In the present embodiment, said desulfuration absorbing tower 1 is a U type squarer, and U type squarer comprises following current tower 11 and countercurrent tower 12, and following current tower 11 is communicated with through connected well 13 with countercurrent tower 12, and said smoke inlet 2 and spraying layer 3 are meant the smoke inlet and the spraying layer of countercurrent tower 12; Certainly, said desulfuration absorbing tower also can be circular tower or square list tower.
As further improvement of the present invention, each said zone is divided into a plurality of rectification units (each lattice that indicates letter is a rectification unit among Fig. 2), is provided with upwardly extending flow-stopping plate 6 around the cowling panel 5 of each rectification unit, and is as shown in Figure 3; Flow-stopping plate 6 plays the effect of separating rectification unit; Work to strengthen rectification unit intensity simultaneously; Lime stone slurry is ejected in the rectification unit and contacts the generation froth bed with the flue gas of exporting through sieve aperture, and lather collapse forms droplet, has increased the gas-liquid mass transfer face; Form disturbance simultaneously, thereby make flue gas and lime stone slurry react more abundant.
In the present embodiment, cowling panel 5 middle parts of said rectification unit are provided with upwardly extending downflow weir 7, and said downflow weir 7 is divided into rectification unit the desulfurization part and falls the liquid part, and the height of said downflow weir 7 is lower than the height of flow-stopping plate 6.
In the present embodiment, said bias current formula biphase rectification device 4 is fixed in desulfuration absorbing tower 1 inwall through brace summer 8.
Explanation is at last; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although through invention has been described with reference to the preferred embodiments of the present invention; But those of ordinary skill in the art should be appreciated that and can make various changes to it in form with on the details, and the spirit and scope of the present invention that do not depart from appended claims and limited.
Claims (5)
1. desulfuration absorbing tower with bias current formula biphase rectification device; Comprise desulfuration absorbing tower (1); Said desulfuration absorbing tower (1) is provided with smoke inlet (2); Be provided with spraying layer (3) in the desulfuration absorbing tower (1); It is characterized in that: be provided with bias current formula biphase rectification device (4) between interior spraying layer of said desulfuration absorbing tower (1) (3) and the smoke inlet (2); Said bias current formula biphase rectification device (4) comprises horizontally disposed cowling panel (5), and said cowling panel (5) flows to the zoning perpendicular to smoke inlet, all have sieve aperture on each regional cowling panel (5) and near the sieve aperture density in smoke inlet (2) zone greater than sieve aperture density away from smoke inlet (2) zone.
2. the desulfuration absorbing tower of band bias current formula biphase rectification device according to claim 1, it is characterized in that: each said zone is divided into a plurality of rectification units, and the cowling panel of each rectification unit (5) is provided with upwardly extending flow-stopping plate (6) all around.
3. the desulfuration absorbing tower of band bias current formula biphase rectification device according to claim 2; It is characterized in that: the cowling panel of said rectification unit (5) middle part is provided with upwardly extending downflow weir (7); Said downflow weir (7) is divided into rectification unit the desulfurization part and falls the liquid part, and the height of said downflow weir (7) is lower than the height of flow-stopping plate (6).
4. according to the desulfuration absorbing tower of claim 1,2 or 3 described band bias current formula biphase rectification devices, it is characterized in that: said bias current formula biphase rectification device (4) is fixed in desulfuration absorbing tower (1) inwall through brace summer (8).
5. according to the desulfuration absorbing tower of claim 1,2 or 3 described band bias current formula biphase rectification devices, it is characterized in that: said desulfuration absorbing tower (1) is circular tower, square list tower or U type squarer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110447122 CN102489145B (en) | 2011-12-28 | 2011-12-28 | Desulphurization absorbing tower with refracted flow type double-phase rectifying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110447122 CN102489145B (en) | 2011-12-28 | 2011-12-28 | Desulphurization absorbing tower with refracted flow type double-phase rectifying device |
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| CN102489145A true CN102489145A (en) | 2012-06-13 |
| CN102489145B CN102489145B (en) | 2013-09-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017185564A1 (en) * | 2016-04-29 | 2017-11-02 | 中电投远达环保工程有限公司重庆科技分公司 | Self-adaptive boiling-type foam desulfurization and dust-removing apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244363A (en) * | 2007-11-26 | 2008-08-20 | 中电投远达环保工程有限公司 | Biphase rectification flue gas desulfurization technique |
| CN101298020A (en) * | 2008-05-29 | 2008-11-05 | 武汉凯迪电力环保有限公司 | Desulfuration spray tower with load regulation and flue gas flow equalizing function |
| CN201848206U (en) * | 2010-06-30 | 2011-06-01 | 中电投远达环保工程有限公司 | Flue gas desulfurization biphase rectifier and flue gas desulfurization system |
| CN202398275U (en) * | 2011-12-28 | 2012-08-29 | 中电投远达环保工程有限公司 | Desulfurizing absorption tower with bias flow type biphase rectifying device |
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2011
- 2011-12-28 CN CN 201110447122 patent/CN102489145B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244363A (en) * | 2007-11-26 | 2008-08-20 | 中电投远达环保工程有限公司 | Biphase rectification flue gas desulfurization technique |
| CN101298020A (en) * | 2008-05-29 | 2008-11-05 | 武汉凯迪电力环保有限公司 | Desulfuration spray tower with load regulation and flue gas flow equalizing function |
| CN201848206U (en) * | 2010-06-30 | 2011-06-01 | 中电投远达环保工程有限公司 | Flue gas desulfurization biphase rectifier and flue gas desulfurization system |
| CN202398275U (en) * | 2011-12-28 | 2012-08-29 | 中电投远达环保工程有限公司 | Desulfurizing absorption tower with bias flow type biphase rectifying device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017185564A1 (en) * | 2016-04-29 | 2017-11-02 | 中电投远达环保工程有限公司重庆科技分公司 | Self-adaptive boiling-type foam desulfurization and dust-removing apparatus |
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| CN102489145B (en) | 2013-09-11 |
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Address after: 401122, 96 Jin Yu Road, new North District, Chongqing, Yubei District Co-patentee after: INNER MONGOLIA HMHJ ALUMINUM ELECTRICITY Co.,Ltd. Patentee after: National electric investment group Yuanda Environmental Protection Engineering Co.,Ltd. Address before: 401122, 96 Jin Yu Road, new North District, Chongqing, Yubei District Patentee before: National electric investment group Yuanda Environmental Protection Engineering Co.,Ltd. |
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Address after: 401122, 96 Jin Yu Road, new North District, Chongqing, Yubei District Patentee after: National electric investment group Yuanda Environmental Protection Engineering Co.,Ltd. Address before: Northern New Chongqing 401122 ring C30 block Patentee before: CPI YUANDA ENVIRONMENTAL-PROTECTION ENGINEERING Co.,Ltd. |
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