CN2564237Y - Intensified wet-limestone smoke desulfurizing spray tower - Google Patents
Intensified wet-limestone smoke desulfurizing spray tower Download PDFInfo
- Publication number
- CN2564237Y CN2564237Y CN 02218356 CN02218356U CN2564237Y CN 2564237 Y CN2564237 Y CN 2564237Y CN 02218356 CN02218356 CN 02218356 CN 02218356 U CN02218356 U CN 02218356U CN 2564237 Y CN2564237 Y CN 2564237Y
- Authority
- CN
- China
- Prior art keywords
- flue gas
- tower
- demister
- reduced
- gas desulfurization
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000007921 spray Substances 0.000 title claims abstract description 29
- 239000006028 limestone Substances 0.000 title claims abstract description 16
- 239000000779 smoke Substances 0.000 title claims description 10
- 230000003009 desulfurizing effect Effects 0.000 title 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000003546 flue gas Substances 0.000 claims abstract description 36
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 22
- 230000023556 desulfurization Effects 0.000 claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 235000019738 Limestone Nutrition 0.000 claims abstract description 15
- 238000010521 absorption reaction Methods 0.000 claims abstract description 14
- 230000003647 oxidation Effects 0.000 claims abstract description 8
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims abstract description 6
- 238000005728 strengthening Methods 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 3
- 238000013459 approach Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 238000000889 atomisation Methods 0.000 abstract 2
- 238000005516 engineering process Methods 0.000 description 5
- 239000011800 void material Substances 0.000 description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- 241000282326 Felis catus Species 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000006276 transfer reaction Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
Disclosed is a reinforced wet limestone flue gas desulfurization spray tower which is used for the flue gas desulfurization of the thermal power plant, comprising a flue gas inlet, a flue gas outlet, an oxidation groove, an absorbing liquid spray layer with a spray nozzle, demisters and flooding nozzles of the demisters. An airflow distribution plate on which a plurality of vent holes are evenly distributed is arranged on the upper part of the flue gas inlet. An inverted Y-shaped vertical demister is arranged on the upper part of the absorbing liquid spray layer. A horizontal demister is arranged on the flue gas outlet. The technical proposal of the utility model is suitable for the process of the reinforced absorption of the high flow rate flue gas, reducing the atomization height and improving the desulfurization rate. The size of the spray tower can be reduced and the cross section of the tower can be reduced by about 40%. The atomization height can be reduced by about 30% and the liquid gas ratio can be reduced by at least 25%. Correspondingly, the volume of the oxidation groove can be reduced, saving the site area; thereby, the energy consumption, the equipment investment and the operation charge are obviously reduced.
Description
(1) technical field:
The utility model relates to a kind of thermal power plant wet type lime stone flue gas desulfur device, particularly a kind of strengthening wet lime stone flue gas desulfurization spray tower that is applicable to that the flue gas high flow rate absorbs.
(2) background technology:
Wet type lime stone flue gas desulfurization technique is that the coal-burning power plant uses the most general flue gas desulfurization technique, and its core apparatus that uses is the absorption tower, wherein takes tower as the leading factor with the spray void tower again.The spray void tower removes to be possessed the desulfuration efficiency height, absorbent utilization rate height, technical maturity, the performance such as reliable, possesses also that resistance is little, inner member is few, the interior advantage such as less scaling of tower.But still there are problems such as system complex, equipment investment and operating cost height in this tower.How to address these problems becomes the research focus that various countries, world today colleague pays close attention to the most.
At present, wet type lime stone flue gas desulfurization technique also is in the stage of applying in China.In the large-scale power station desulfurizer by external introduction, adopt the not within minority of spray void tower.This tower flue gas flow rate is low, and generally about 3-3.5m/s, tower body is big, and liquid-gas ratio is big, the energy consumption height, and equipment investment and operating cost are all higher.Figure 1 shows that the common structure of spray void tower.Tower body 3 bottoms are oxidation trough 1, undertake and collect flue gas, supply absorption liquid, store work such as oxidation sweetening product, the tower body vertical height on smoke inlet 2 tops is higher, absorption liquid spraying layer 4, demister 5 and the flooding nozzle 6 thereof of band nozzle are installed, undertake work such as the atomizing of absorption liquid spray, flue gas desulfurization demist, cat head is flue gas after desulfurization outlet 9.
(3) summary of the invention:
Technical problem to be solved in the utility model is, the structure of existing spray void tower is improved, and provides that a kind of energy consumption is low, equipment investment and the low strengthening wet lime stone flue gas desulfurization spray tower that is applicable to high flow rate countercurrent spray sulfur removal technology of operating cost.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of strengthening wet lime stone flue gas desulfurization spray tower, its composition comprises absorption liquid spraying layer, demister and the flooding nozzle thereof of tower body, smoke inlet and outlet, oxidation trough, band nozzle, it is characterized in that: the smoke inlet top has an airflow-distribution board, even distribution passage on the plate, absorption liquid spraying layer top has the vertical demister of " people " font, and smoke outlet has horizontal demister.
The utility model absorbs for the reinforcement that adapts to high flow rate (more than the 5m/s) flue gas, set up airflow-distribution board, make into the tower flue gas air-flow and be evenly distributed, above airflow-distribution board, form and hold liquid layer, strengthen the gas-liquid mass transfer reaction, help reducing the atomizing height and improve desulfurization degree, absorption liquid spraying layer and nozzle are through optimal design (separate case is applied for a patent), sprinkle density is big and even, vertical demister of " people " font and the horizontal demister in exit are set, also be the requirement that adapts to the high flow rate sulfur removal technology, fully carry out demist, and help reducing the atomizing height.Because adapting to the high flow rate flue gas, technical measures of the present utility model strengthen the technology that absorbs, therefore tower body appearance and size can reduce, the cross-sectional area of tower can reduce about 40%, the atomizing of tower highly can reduce about 30%, liquid-gas ratio reduces more than 25%, the oxidation trough volume also can correspondingly dwindle, and has reduced floor space, thereby the energy consumption of making, equipment investment and operating cost can both reduce and reduce significantly.
(4) description of drawings:
Fig. 2 is the utility model strengthening wet lime stone flue gas desulfurization spray tower structural representation.
Fig. 3 is an A portion enlarged diagram among Fig. 2.
(5) specific embodiment:
With reference to the accompanying drawings and in conjunction with the embodiments the utility model is described in detail.
As shown in Figure 2, the composition of this spray column comprise tower body 3, smoke inlet 2 and export 9, absorption liquid spraying layer 4, demister 5,7 and the flooding nozzle 6 thereof of oxidation trough 1, band nozzle, smoke inlet 2 tops have an airflow-distribution board 8, even distribution passage 81 on the plate, absorption liquid spraying layer 4 tops have the vertical demister 5 of " people " font, and exhanst gas outlet 9 places have horizontal demister 7.
Among the embodiment, for making the better effects if of the utility model spray column to flue gas desulfurization, further feature is: as shown in Figures 2 and 3, (1), the percent opening of airflow-distribution board 8 is 60-75%, the aperture is 50-70mm, and the rising flue gas stream was evenly distributed, and does not increase too much resistance again; (2), the blade 71 in the demister 5,7 is designed to two passage buckle P-S type blades, makes its demist under the situation that flue gas flow rate improves effective and resistance is little; (3), gas approach 2 is connected with tower body 3 with having a down dip, itself and tower wall angle α are the 50-70 degree, the top of stretching into part in the tower is provided with water fender 21, and is provided with inlet flooding nozzle 6; (4), the nozzle of absorption liquid spraying layer 4 is counter-flow arrangement, the atomizing spray number of plies is a layer 2-4; (5), the vertical demister 5 of " people " font is the 40-50 degree with tower wall angle β.
The experiment proved that this spray column is at tower inlet flue gas SO
2Concentration 5000mg/m
3, under the flue gas flow rate 5.2m/s situation, as absorbent, flue gas desulphuization rate is up to 92% with the agstone of conventional fineness.
Claims (6)
1, strengthening wet lime stone flue gas desulfurization spray tower, its composition comprises absorption liquid spraying layer, demister and the flooding nozzle thereof of tower body, smoke inlet and outlet, oxidation trough, band nozzle, it is characterized in that: the smoke inlet top has an airflow-distribution board, even distribution passage on the plate, absorption liquid spraying layer top has the vertical demister of " people " font, and smoke outlet has horizontal demister.
2, strengthening wet lime stone flue gas desulfurization spray tower according to claim 1, the percent opening that it is characterized in that airflow-distribution board is 60-75%, the aperture is 50-70mm.
3, strengthening wet lime stone flue gas desulfurization spray tower according to claim 1 is characterized in that the blade in the demister is designed to two passage buckle P-S type blades.
4, strengthening wet lime stone flue gas desulfurization spray tower according to claim 1 is characterized in that gas approach is connected with tower body with having a down dip, and itself and tower wall angle α are the 50-70 degree, and the top of stretching into part in the tower is provided with water fender, and is provided with the inlet flooding nozzle.
5, strengthening wet lime stone flue gas desulfurization spray tower according to claim 1, the nozzle that it is characterized in that the absorption liquid spraying layer is a counter-flow arrangement, the atomizing spray number of plies is a layer 2-4.
6, strengthening wet lime stone flue gas desulfurization spray tower according to claim 1 is characterized in that vertical demister of " people " font and tower wall angle β are the 40-50 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218356 CN2564237Y (en) | 2002-01-16 | 2002-01-16 | Intensified wet-limestone smoke desulfurizing spray tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02218356 CN2564237Y (en) | 2002-01-16 | 2002-01-16 | Intensified wet-limestone smoke desulfurizing spray tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2564237Y true CN2564237Y (en) | 2003-08-06 |
Family
ID=33697019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02218356 Expired - Fee Related CN2564237Y (en) | 2002-01-16 | 2002-01-16 | Intensified wet-limestone smoke desulfurizing spray tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2564237Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319629C (en) * | 2005-11-21 | 2007-06-06 | 孙克勤 | Spray tower having absorber paste redistribution device |
| CN100427181C (en) * | 2006-09-29 | 2008-10-22 | 清华大学 | Wet type reaction tower for flue gas desulfurization |
| CN100430112C (en) * | 2005-12-14 | 2008-11-05 | 中国石油化工股份有限公司 | Gas chilled absorbing tower |
| CN1919421B (en) * | 2006-08-11 | 2010-05-12 | 江苏德克环保设备有限公司 | Absorption tower demisting apparatus in flue gas desulfurization process |
| CN102363094A (en) * | 2011-10-14 | 2012-02-29 | 华南理工大学 | Composite type wet-method flue gas desulfurizing device |
| CN102563678A (en) * | 2012-01-31 | 2012-07-11 | 中国电力工程顾问集团中南电力设计院 | Device used for preventing flue gas at outlet of chimney from carrying droplets after wet desulphurization |
| CN112827333A (en) * | 2020-12-21 | 2021-05-25 | 国家能源蓬莱发电有限公司 | Atomization absorption synergistic device of wet flue gas desulfurization absorption tower |
-
2002
- 2002-01-16 CN CN 02218356 patent/CN2564237Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1319629C (en) * | 2005-11-21 | 2007-06-06 | 孙克勤 | Spray tower having absorber paste redistribution device |
| CN100430112C (en) * | 2005-12-14 | 2008-11-05 | 中国石油化工股份有限公司 | Gas chilled absorbing tower |
| CN1919421B (en) * | 2006-08-11 | 2010-05-12 | 江苏德克环保设备有限公司 | Absorption tower demisting apparatus in flue gas desulfurization process |
| CN100427181C (en) * | 2006-09-29 | 2008-10-22 | 清华大学 | Wet type reaction tower for flue gas desulfurization |
| CN102363094A (en) * | 2011-10-14 | 2012-02-29 | 华南理工大学 | Composite type wet-method flue gas desulfurizing device |
| CN102563678A (en) * | 2012-01-31 | 2012-07-11 | 中国电力工程顾问集团中南电力设计院 | Device used for preventing flue gas at outlet of chimney from carrying droplets after wet desulphurization |
| CN102563678B (en) * | 2012-01-31 | 2014-07-30 | 中国电力工程顾问集团中南电力设计院 | Device used for preventing flue gas at outlet of chimney from carrying droplets after wet desulphurization |
| CN112827333A (en) * | 2020-12-21 | 2021-05-25 | 国家能源蓬莱发电有限公司 | Atomization absorption synergistic device of wet flue gas desulfurization absorption tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030806 Termination date: 20100219 |