CN203816496U - Efficient flue gas desulfurization device - Google Patents
Efficient flue gas desulfurization device Download PDFInfo
- Publication number
- CN203816496U CN203816496U CN201320833544.7U CN201320833544U CN203816496U CN 203816496 U CN203816496 U CN 203816496U CN 201320833544 U CN201320833544 U CN 201320833544U CN 203816496 U CN203816496 U CN 203816496U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- spraying layer
- spray
- tower
- nozzle
- 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.)
- Expired - Lifetime
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 239000003546 flue gas Substances 0.000 title claims abstract description 36
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 25
- 230000023556 desulfurization Effects 0.000 title claims abstract description 20
- 239000007921 spray Substances 0.000 claims abstract description 18
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 16
- 238000010521 absorption reaction Methods 0.000 claims abstract description 13
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 5
- 238000005507 spraying Methods 0.000 claims description 40
- 239000011800 void material Substances 0.000 claims description 4
- 230000008676 import Effects 0.000 claims description 2
- 239000003595 mist Substances 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract 2
- 239000002002 slurry Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000004087 circulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Abstract
The utility model discloses an efficient flue gas desulfurization device. The device comprises a desulfurizing tower, spray layers and demisters, wherein the spray layers and the demisters are arranged in the tower; the desulfurizing tower comprises an inlet and an outlet; the spray layers at least include upper, medium and lower layers and are formed by solid cone nozzles, hollow cone nozzles and spray pipelines; the solid cone nozzles are arranged on each spray layer, close to the side wall area of an absorption tower; unidirectional nozzles are arranged at the uppermost spray layer; upper and lower bidirectional nozzles are arranged on the spray layers except the uppermost spray layer; the flows of the nozzles range from 20m<3>/h to 50m<3>/h; the space between the spray layers ranges from 1.6m to 2.0m; the superficial flue gas velocity in a spray tower ranges from 3.4m/s to 4.2m/s; the demisters are arranged at the upper part of the uppermost spray layer; the flue gas is exhausted from an outlet of the absorption tower after mist drops are removed via the demisters. The efficient desulfurization device has the advantages of high desulfurization efficiency, small flue gas pressure loss and the like.
Description
Technical field
the utility model belongs to environmental technology field, relates to a kind of high-efficiency flue gas desulfurization device.
Background technology
wet Flue Gas Desulfurization Technology plays an important role in China's prevention and control of air pollution field, and spray column flue gas desulfurization technique is the mainstream technology of wet desulfurizing process, has the advantages such as inner part is few, less scaling.Along with environment protection emission index request improves day by day, each desulfur technology producer has released some technological means one after another, desulfurizing tower transformation to existing operation is improved desulfuration efficiency, as installed pallet, swirl-flow devices additional or adopt the means such as two circulations to improve desulfuration efficiency in desulfurizing tower.The various means of above-mentioned raising desulfuration efficiency, all need to improve to a certain extent cigarette operating cost or improve cost of investment.
conventional spray void tower flue gas desulfurization technique, adopts single hollow cone or spiral nozzle, and Multi-layer sprinkling layer is set, and every one deck arranges multiple nozzles.Each layer of spraying layer nozzle ejection absorbent slurry, becomes fine mist by slurry spraying, and flue gas contacts with droplet, SO in flue gas
2
be absorbed and remove Deng pollutant.Consider that slurries are to the washing away and wear and tear of absorbing tower wall, thereby must maintain a certain distance near nozzle and the tower wall of absorbing tower wall, thereby make absorbing tower wall region gas-liquid contact effect poor, SO
2
removal effect is poor.
in addition, between each layer of spraying layer, have certain spacing, the setting of this spacing is comprehensive SO
2
absorption, installation, maintenance etc. need setting.Thereby spraying layer spacing, usually above the needed height of absorption reaction, has reduced the space availability ratio of absorption reaction in actual moving process, reaching identical desulfurized effect needs more sprayed slurry, and energy consumption is higher.
therefore, this practicality, on the basis of spray void tower, proposes a kind of high-efficiency flue gas desulfurization device, and this device has advantages of that desulfuration efficiency is high, flue gas pressures is lost little.
Utility model content
the purpose of this utility model is to provide a kind of high-efficiency flue gas desulfurization device.
the high-efficiency flue gas desulfurization device that the utility model provides, it comprises desulfurizing tower and Ta Nei spraying layer, demister; Described desulfurizing tower comprises import and outlet; Described spraying layer at least comprises 3 layers of upper, middle and lowers; Described spraying layer is made up of solid-cone (type) nozzle, hollow cone nozzle (unidirectional hollow cone nozzle and bidirectional hollow cone nozzle) and spray piping; Described each spraying layer is being arranged solid-cone (type) nozzle near Bian Bi region, absorption tower; Described the superiors spraying layer is arranged unidirectional nozzle; Described spraying layer, except the superiors' spraying layer, other layer of spraying layer arranged upper and lower Bidirectional nozzle; Described nozzle flow is 20 ~ 50m
3
/ h scope; Described each spraying layer spacing is 1.6 ~ 2.0m scope; In described spray column, void tower flue gas flow rate is 3.4 ~ 4.2m/s scope; Described demister is arranged in the superiors' spraying layer top, and flue gas exports from absorption tower after demister is removed droplet.
high-efficiency flue gas desulfurization device of the present utility model, has the advantages such as desulfuration efficiency is high, flue gas pressures loss is little.
Brief description of the drawings
fig. 1 is the utility model schematic side view.
fig. 2 is the utility model spraying layer schematic diagram.
Detailed description of the invention
referring to Fig. 1, Fig. 2, high-efficiency flue gas desulfurization device of the present utility model comprises desulfurizing tower 1, and spraying layer 3 is horizontally disposed in desulfurizing tower 1, vertical with desulfurizing tower axis.Desulfurizing tower entrance 2 is arranged in spraying layer 3 belows, and demister 4 is arranged in spraying layer top, and desulfurizing tower outlet 5 is arranged in demister top.Spraying layer is made up of shower 6 and nozzle 7.
in order to ensure to appoint and so have good gas-liquid contact effect in Bian Bi region, absorption tower, avoid flue gas to escape in desulfurizing tower Bian Bi region, the nozzle closing on desulfurizing tower wall all adopts solid-cone form.
in order to make full use of spraying layer space, make in each spraying layer region gas-liquid contact more effective fully, the spraying layer nozzle outside spraying layer adjacent with demister, all adopts bidirectional hollow cone nozzle.Spraying layer nozzle adjacent with demister adopts unidirectional nozzle, avoids flue gas to carry too many slurries and enters demister.
more even in order to ensure spraying layer gas-liquid contact, ensure that every one deck spraying layer has enough arrangement of nozzles, each nozzle flow should be 20 ~ 50m
3
/ h.
introduce the course of work and the principle of high-efficiency flue gas desulfurization device of the present utility model below.
high-efficiency flue gas desulfurization device of the present utility model, containing SO
2
first flue gas enters from absorption tower entrance, enters the slurries contact of the absorption tower Hou Yucong the superiors to the ejection of orlop spraying layer, and flue-gas temperature is reduced to rapidly saturation state, and starts to react with sprayed slurry.After this flue gas passes through each layer of spraying layer successively.Because each layer of spraying layer arrangement of nozzles is even, cross section, whole absorption tower absorbent slurry is evenly distributed, gas-liquid contact fully and smokeless escape, thereby SO in flue gas
2
reduce rapidly, until the superiors' spraying layer, SO in flue gas
2
concentration is reduced to lower than design certified value.
Claims (4)
1.
a kind of high-efficiency flue gas desulfurization device, it comprises desulfurizing tower and Ta Nei spraying layer, demister; Described desulfurizing tower comprises import and outlet; Described spraying layer at least comprises 3 layers of upper, middle and lowers; Described spraying layer is made up of solid-cone (type) nozzle, hollow cone nozzle and spray piping; Described each spraying layer is being arranged solid-cone (type) nozzle near Bian Bi region, absorption tower; Described the superiors spraying layer is arranged unidirectional nozzle; Described spraying layer, except the superiors' spraying layer, other layer of spraying layer arranged upper and lower Bidirectional nozzle; Described demister is arranged in the superiors' spraying layer top, and flue gas exports from absorption tower after demister is removed droplet.
2.
high-efficiency flue gas desulfurization device according to claim 1, is characterized in that, described nozzle flow is 20 ~ 50m 3 / h.
3.
high-efficiency flue gas desulfurization device according to claim 1, is characterized in that, described each spraying layer spacing is 1.8 ~ 2.0m.
4.
high-efficiency flue gas desulfurization device according to claim 1, is characterized in that, in described spray column, void tower flue gas flow rate is 3.4 ~ 4.2m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320833544.7U CN203816496U (en) | 2013-12-18 | 2013-12-18 | Efficient flue gas desulfurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320833544.7U CN203816496U (en) | 2013-12-18 | 2013-12-18 | Efficient flue gas desulfurization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203816496U true CN203816496U (en) | 2014-09-10 |
Family
ID=51472040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320833544.7U Expired - Lifetime CN203816496U (en) | 2013-12-18 | 2013-12-18 | Efficient flue gas desulfurization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203816496U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104958999A (en) * | 2015-07-14 | 2015-10-07 | 中国华电工程(集团)有限公司 | Ultra-low emission absorption tower |
| EP3100781B1 (en) * | 2015-06-01 | 2018-10-31 | RUDIS poslovno zdruzenje za inzeniring in izgradnjo objekov d.o.o. | Process and apparatus for high performance flue gas cleaning |
-
2013
- 2013-12-18 CN CN201320833544.7U patent/CN203816496U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3100781B1 (en) * | 2015-06-01 | 2018-10-31 | RUDIS poslovno zdruzenje za inzeniring in izgradnjo objekov d.o.o. | Process and apparatus for high performance flue gas cleaning |
| CN104958999A (en) * | 2015-07-14 | 2015-10-07 | 中国华电工程(集团)有限公司 | Ultra-low emission absorption tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |
|
| CX01 | Expiry of patent term |