CN100398185C - Wet fume purifier - Google Patents
Wet fume purifier Download PDFInfo
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- CN100398185C CN100398185C CNB2005100612761A CN200510061276A CN100398185C CN 100398185 C CN100398185 C CN 100398185C CN B2005100612761 A CNB2005100612761 A CN B2005100612761A CN 200510061276 A CN200510061276 A CN 200510061276A CN 100398185 C CN100398185 C CN 100398185C
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- fume
- wet
- collecting tank
- heat exchanger
- demister
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Abstract
The present invention relates to a fume desulphurizing technology, particularly to a wet fume purifying device which is matched with a coal-burning (oil-burning) boiler of a large power generating plant to be used for dust removal and desulphurization. The present invention is characterized in that the wet fume purifying device is provided with a heat exchanging device which carried out heat exchange between fume to be processed and the discharged fume. The present invention aims to provide the wet fume purifying device which can improve the discharged temperature of the processed fume. Compared with the prior art, the wet fume purifying device has the advantages of high efficiency of dust removal and desulphurization, obvious energy saving effect, compact structure, convenient operation, etc., and solves the corrosion problem of a post-processing device completely.
Description
Technical field
The present invention relates to flue gas desulfurization technique, the wet fume purifier of the dust-removal and desulfurizing that particularly a kind of and big power station's fire coal (oil) boiler is supporting.
Background technology
The particularly flue gas desulfurization technique fast development of China's fire coal (oil) boiler both at home and abroad in recent years is for flue gas desulfurization provides many processes.Relatively, the technology of wet desulphurization is still a kind of reliable main separation direction, and it is implementing in service accounting for about 87%.
In wet dedusting desulfurization technology, because flue gas will contain a large amount of saturated steams and a spot of sulfur dioxide (300mg/m with after absorption liquid fully contacts in the flue gas after the processing
3), temperature is about 55～65 ℃.In discharge process, increase along with the blowdown stack height, flue-gas temperature reduces gradually, analysing of saturated steam in the flue gas separated, the part water generates will be arranged, can generate sulfurous acid or sulfuric acid with a spot of sulfur dioxide in the flue gas, it has serious corrosivity, therefore the flue-gas temperature after occurring handling is low, water capacity produces the problem of corrosion, the corrosion that particularly causes draught fan impeller, flue and chimney etc. to be located greatly to upstream device.This is the insoluble problem that exists in the present wet dedusting desulfurization engineering.
Summary of the invention
The objective of the invention is to design a kind of wet fume purifier that can improve processing back smog discharge temperature.
In order to achieve the above object, the present invention adopts following technical solution: a kind of wet fume purifier, comprise absorption reactor thermally, collecting tank, gas microexplosion device, demister and washer, wherein absorption reactor thermally comprises nozzle, circulating pump, circulating pump is connected nozzle with collecting tank, it is characterized in that being provided with graphite heat exchanger at the front end place of adsorption tower smoke exhaust outlet, the shell side two ends of graphite heat exchanger are connected on the main stem of fume emission, and the tube side two ends of graphite heat exchanger are connected between smoke inlet to be clean and the absorption reactor thermally inlet.
Because after utilizing pending high-temperature flue gas and the mutual heat exchange of the low-temperature flue gas after the desulfurization, reduced the temperature of pending flue gas on the one hand, improved the efficient of dust-removal and desulfurizing, improved the smog discharge temperature after the desulfurization on the other hand again, but about outlet flue gas temperature raising to 80 ℃, avoid the dew point of sulfur trioxide, the flue gas after the processing can utilize the chimney with general antiseptic property to discharge, solve the etching problem of back trip equipment fully, and at utmost saved the consumption of outer thermal source.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in further detail.
Fig. 1 is the structural representation of present embodiment.
Fig. 2 is Fig. 1 right view.
The specific embodiment
As Fig. 1, shown in Figure 2, present embodiment comprises absorption reactor thermally (11), purify comprehensive tower (10), wherein absorption reactor thermally (11) comprises nozzle (12), circulating pump (1), in purifying comprehensive tower (10), concentrate and include collecting tank (2), gas microexplosion device (3), demister (6), washer (5) and graphite heat exchanger (8), demister (6) is located at collecting tank (2) top, be provided with gas-liquid separation band (4) between them, washer (5) is located at the below of demister (6), graphite heat exchanger (8) is located between demister (6) top and the fume emission outlet (9), the shell side of graphite heat exchanger (13) two ends are connected on the main stem of fume emission, and tube side (7) two ends of graphite heat exchanger (8) are connected between smoke inlet to be clean and absorption reactor thermally (11) inlet.Circulating pump (1) is connected nozzle (12) with collecting tank (2), absorption reactor thermally (11) lower end outlet is connected with collecting tank (2) in the purification comprehensive tower (10).
Flue gas to be clean is after the graphite heat exchanger tube side enters the graphite heat exchanger heat exchange, its temperature 140 ℃ when entering are reduced to 110 ℃, circulating pump (1) upwards sprays the absorbent in the collecting tank (2) with absorbent through nozzle (12) simultaneously, carry out reverse turbulent flow bump desulfurization with absorbent with the flue gas that comes out from the graphite heat exchanger pipe absorption reactor thermally, absorbent falls and enters the collecting tank storage and carries out the reciprocation cycle use.Flue gas after the bump desulfurization is overflowed from the liquid collecting of collecting tank, along with the tower cross section increases, velocity of flue gas falls slowly, gas-liquid separation band above collecting tank carries out preliminary sedimentation separation, to further foam removal of demister (6), the shell side by heat exchanger carries out heat exchange with the flue gas to be clean that enters tube side more then, and the flue-gas temperature after the heat exchange is about 80 ℃, derive by absorption tower outlet, through flue to the chimney of discharging fume.
When chevron shaped demister uses for a long time, regularly open washer and chevron shaped demister is cleaned with the high pressure clear water.
In sum, the present invention compared with prior art has the following advantages:
1, owing to before desulfurization, treat earlier the temperature of smoke treatment and lower the temperature, improved and removed The dirt desulfuration efficiency.
2, because the smog discharge temperature after the desulfurization reaches about 80 ℃, avoid the dew point of sulfur trioxide, Flue gas after the processing can utilize the chimney with general antiseptic property to discharge, after having solved fully The etching problem of trip equipment, and the consumption of at utmost saving outer thermal source.
3, since the present invention with collecting tank, gas microexplosion device, demister, washer, heat exchanger All devices is integrated in one, and compact conformation is easy to operate.
4, because heat-exchanger rig adopts graphite heat exchanger, in light weight, good effect of heat exchange, and rotproofness is strong, is adapted to respectively change in the desulfurization process different work condition environments fully.
Claims (3)
1. wet fume purifier, comprise absorption reactor thermally (11), collecting tank (2), gas microexplosion device (3), demister (6) and washer (5), wherein absorption reactor thermally (11) comprises nozzle (12), circulating pump (1), circulating pump (1) is connected nozzle (12) with collecting tank (2), it is characterized in that being provided with graphite heat exchanger (8) at the front end place of fume emission outlet (9), the shell side of graphite heat exchanger (13) two ends are connected on the main stem of fume emission, and the tube side of graphite heat exchanger (7) two ends are connected between smoke inlet to be clean and absorption reactor thermally (11) inlet.
2. wet fume purifier according to claim 1 is characterized in that concentrated being arranged on of collecting tank (2), gas microexplosion device (3), demister (6) and washer (5) purifies in the comprehensive tower (10).
3. wet fume purifier according to claim 2 is characterized in that being provided with gas-liquid separation band (4) between collecting tank (2) top and the demister (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100612761A CN100398185C (en) | 2005-10-24 | 2005-10-24 | Wet fume purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100612761A CN100398185C (en) | 2005-10-24 | 2005-10-24 | Wet fume purifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1772350A CN1772350A (en) | 2006-05-17 |
| CN100398185C true CN100398185C (en) | 2008-07-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100612761A Active CN100398185C (en) | 2005-10-24 | 2005-10-24 | Wet fume purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100398185C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101934182A (en) * | 2009-06-30 | 2011-01-05 | 江苏中兴化工设备有限公司 | Efficient scrubber |
| CN102091521B (en) * | 2010-12-31 | 2013-01-16 | 黄官禹 | Desulfuration and dust-removal purifying device |
| CN110038415B (en) * | 2019-04-18 | 2024-02-02 | 中国能源建设集团湖南省电力设计院有限公司 | Wet flue gas desulfurization tower |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63178828A (en) * | 1986-11-19 | 1988-07-22 | バウアカデミー・デル・ドイツチエン・デモクラテイッシエン・レプブリック | Wet treatment for recovering heat from flue gas and exhaust gas, and separating harmful substance |
| US5658361A (en) * | 1995-09-12 | 1997-08-19 | Arencibia, Jr.; Jose P. | Apparatus for purifying hot flue gas and for recovering thermal energy therefrom |
| CN2538411Y (en) * | 2001-08-20 | 2003-03-05 | 石油大学(华东) | Efficient smoke desulfurizing duster for smoke from Auri emulsified oil furnace |
| CN1467015A (en) * | 2002-12-23 | 2004-01-14 | 吴忠标 | Energy-saving high effective desulfurizing and dust control method and equipment using remaining heat |
| CN2907849Y (en) * | 2005-10-24 | 2007-06-06 | 温州市双屿防腐设备制造公司 | Smoke purification by wet method |
-
2005
- 2005-10-24 CN CNB2005100612761A patent/CN100398185C/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63178828A (en) * | 1986-11-19 | 1988-07-22 | バウアカデミー・デル・ドイツチエン・デモクラテイッシエン・レプブリック | Wet treatment for recovering heat from flue gas and exhaust gas, and separating harmful substance |
| US5658361A (en) * | 1995-09-12 | 1997-08-19 | Arencibia, Jr.; Jose P. | Apparatus for purifying hot flue gas and for recovering thermal energy therefrom |
| CN2538411Y (en) * | 2001-08-20 | 2003-03-05 | 石油大学(华东) | Efficient smoke desulfurizing duster for smoke from Auri emulsified oil furnace |
| CN1467015A (en) * | 2002-12-23 | 2004-01-14 | 吴忠标 | Energy-saving high effective desulfurizing and dust control method and equipment using remaining heat |
| CN2907849Y (en) * | 2005-10-24 | 2007-06-06 | 温州市双屿防腐设备制造公司 | Smoke purification by wet method |
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| Publication number | Publication date |
|---|---|
| CN1772350A (en) | 2006-05-17 |
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Address after: 325000 No. 11, Ju Guang road, Ju Guang Yuan, Lucheng District, Wenzhou, Zhejiang. Co-patentee after: Wang Jiaqi Patentee after: ZHEJIANG SHUANGYU INDUSTRIAL Co.,Ltd. Address before: 325007 4 star road, Lucheng industrial area, Wenzhou, Zhejiang Co-patentee before: Wang Jiaqi Patentee before: Wenzhou Shuang Yu Anticorrosion Equipment Manufacturing Co.,Ltd. Address after: 325007 4 star road, Lucheng industrial area, Wenzhou, Zhejiang Co-patentee after: Wang Jiaqi Patentee after: Wenzhou Shuang Yu Anticorrosion Equipment Manufacturing Co.,Ltd. Address before: No. 11, torch high road, torch garden, Zhejiang, Wenzhou, Zhejiang Co-patentee before: Wang Jiaqi Patentee before: SHUANGYU ANTICORROSIVE EQUIPME |