CN105477896A - Wet process desulphurization demisting device and wet process desulphurization device - Google Patents
Wet process desulphurization demisting device and wet process desulphurization device Download PDFInfo
- Publication number
- CN105477896A CN105477896A CN201510980617.9A CN201510980617A CN105477896A CN 105477896 A CN105477896 A CN 105477896A CN 201510980617 A CN201510980617 A CN 201510980617A CN 105477896 A CN105477896 A CN 105477896A
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- CN
- China
- Prior art keywords
- wet desulphurization
- wet process
- pipe row
- demister
- cooling medium
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- 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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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
- B01D5/0009—Horizontal tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
Abstract
The invention discloses a wet process desulphurization demisting device and a wet process desulphurization device, and belongs to the technical field of wet process desulphurization. The wet process desulphurization demisting device provided by the invention comprises at least two layers of parallel pipe rows; the two adjacent layers of pipe rows are in staggered arrangement; each layer of pipe row respectively comprises a plurality of mutually parallel hollow thin pipes and also comprises a cooling medium source; at least partial hollow thin pipes are communicated with the cooling medium source; the cooling medium source is used for providing cooling media for the hollow thin pipes. According to the wet process desulphurization demisting device and the wet process desulphurization device provided by the invention, the cooling media are communicated inside the pipe rows for cooling smoke gas; water vapor in the smoke gas can be condensed by using fine particulate matters and liquid drops as the core, so that the mass of the fine particulate matters and the liquid drops can be increased; the inertia is increased; the catching capability of the demisting device on the fine particulate matters and the liquid drops is improved; the generation of gypsum rain is avoided; the demisting effect is improved. The wet process desulphurization device provided by the invention is provided with the wet process desulphurization demisting device, and has the advantages that the scale formation blockage cannot easily occur; the demisting effect is good.
Description
Technical field
The present invention relates to Wet Flue Gas Desulfurization Technique field, particularly relate to a kind of wet desulphurization demister and be provided with the wet desulphurization device of this wet desulphurization demister.
Background technology
At present, coal-burning boiler wet desulfurization system easily produces the droplet being mingled with gypsum in running, need to be trapped by demister, wet desulphurization generally adopts ridge type demister and tubular demister, its principle is the effect of inertia and the Action of Gravity Field that rely on slurry drops in flue gas, force flue gas to continuously change direction in motion process, make flue gas stream realize gas-liquid separation under the effect of inertia force and centrifugal force, reach the object of demist.The trapping ability of demister to fine drop and solid particulate matter of current application is lower, simultaneously with the prolongation of running time, also may occur fouling, stopping state, cause demisting efficiency to decline.
Summary of the invention
One object of the present invention is to propose a kind of less scaling, blocking, the wet desulphurization demister that demisting efficiency is high;
Another object of the present invention is to propose a kind of less scaling, blocking, the wet desulphurization device that demisting efficiency is high.
For reaching this object, on the one hand, the present invention proposes following technical scheme:
A kind of wet desulphurization demister, comprise at least two-layer parallel pipe row, the two ends of described pipe row are supported on support member respectively, be staggeredly arranged between adjacent two-layer described pipe row, every layer of described pipe row includes the many hollow tubules be parallel to each other, also comprise cooling medium source, at least part of described hollow tubule is communicated with described cooling medium source, and described cooling medium source is used for providing cooling medium for described hollow tubule.
Further, described cooling medium is cooling water.
Further, described pipe row is made up of fluorine-containing plastic material.
Further, the spacing between two the adjacent described hollow tubules being in same layer pipe row be the 2-3 of the diameter of described hollow tubule doubly.
Further, the spacing between adjacent two-layer pipe row is 1-1.5 times of the diameter of described hollow tubule.
Further, the number of plies of described pipe row is 5-15 layer.
Further, the cross section of described hollow tubule is circular or water-drop-shaped.
Further, the axis of described pipe row and horizontal angle are 0 °-25 °.
Further, described mist separator of desulfurization also comprises water flushing device, and described water flushing device is used for rinsing the outer surface that described pipe is arranged.
On the other hand, the present invention proposes following technical scheme:
Comprise a wet desulphurization device for above-mentioned arbitrary described wet desulphurization demister, comprise wet desulfuration tower, described wet desulphurization demister is arranged at above the spraying layer of described wet desulfuration tower.
Beneficial effect of the present invention is:
Wet desulphurization demister provided by the invention, after pipe row inner connection cooling medium, pipe row can cool the flue gas of wet saturation state, steam in flue gas can with fine particle and drop for core carries out condensation, the quality of such fine particle and drop can increase, and inertia increases, and improves the trapping ability of demister to fine particle and drop, avoid the generation of " gypsum rain ", improve except fog effect.
Wet desulphurization device provided by the invention is owing to being provided with above-mentioned wet desulphurization demister, and its less scaling blocking, demist are effective.
Accompanying drawing explanation
Fig. 1 is the front view of the desulfurization demister that embodiments of the invention one provide;
Fig. 2 is the side view of the desulfurization demister that embodiments of the invention one provide;
Fig. 3 is the structural representation of the wet desulphurization device that embodiments of the invention two provide.
In figure, 1, pipe row; 11, hollow tubule; 2, support member; 3, wet desulfuration tower; 4, spraying layer; 5, slurry pool; 6, desulfurizing tower entrance; 7, desulfurizing tower outlet.
Detailed description of the invention
Technical scheme of the present invention is further illustrated by detailed description of the invention below in conjunction with accompanying drawing.
Embodiment one:
Present embodiments provide a kind of wet desulphurization demister, as depicted in figs. 1 and 2, it comprises at least two-layer parallel pipe row 1, the two ends of pipe row 1 are supported on support member 2 respectively, be staggeredly arranged between adjacent two-layer pipe row 1, every layer of pipe row 1 includes the many hollow tubules be parallel to each other 11, also comprise cooling medium source (not shown), at least part of hollow tubule 11 is communicated with cooling medium source, and cooling medium source is used for providing cooling medium to cool hollow tubule 11 for hollow tubule 11.Cooling medium in cooling medium source is preferably cooling water, nontoxic, cost is low, good cooling results, but cooling medium is not limited to water, also can be some other nontoxic medium with cooling effect.The planform of support member is not specifically limited, and can play the effect of stay pipe row, such as support member is gripper shoe.In addition, in the present embodiment, many refer at least two.
In the present embodiment: after heat exchanger tube row inner connection cooling medium, a large amount of gypsum slurries and the raw mechanical impact of pipe discharge, pipe row can cool the flue gas of wet saturation state, steam in flue gas can with fine particle and drop for core carries out condensation, the quality of such fine particle and drop can increase, inertia increases, improve the trapping ability of demister to fine particle and drop, after the process of demister, droplet concentration in flue gas obviously declines, and even drops to and is less than 20mg/Nm
3, avoid the generation of " gypsum rain ", improve except fog effect.
As preferred embodiment, pipe row be made up of fluorine-containing plastic material.Because flue-gas temperature is positioned at below water dew point, so flue gas ash removal demister must sulfuric-resisting corrosion, and fluorine plastic tube has excellent corrosion resistance to sulfuric acid and high temperature resistant.
Further, the spacing between two the adjacent hollow tubules 11 being in same layer pipe row be the 2-3 of the diameter of hollow tubule 11 doubly; Spacing between adjacent two-layer pipe row is 1-1.5 times of the diameter of hollow tubule 11.In present embodiment, the set-up mode of pipe row comparatively dense, can increase gypsum slurries and restrain the chance that mechanical impact occurs, thus promoting the trapping effect to calcium plaster drop, strengthening except fog effect.In addition, in the present embodiment, the quantity of pipe row is preferably 10 layers, but is not limited to 10 layers, such as 3 layers, 5 layers, 7 layers, 15 layers, can meet required except fog effect.
Further, axis and the horizontal angle of pipe row can be 0 °, i.e. pipe row setting and vertical with the direction of flue gas stream in the horizontal direction, pipe row also can be inclined to set with horizontal direction in addition, such as, pipe row is 25 ° with horizontal angle, to reduce blocking risk further.
More specifically, the cross section of hollow tubule 11 is circular; The cross section of hollow tubule 11 also can be water-drop-shaped, to improve the area of interception droplet.
Further, mist separator of desulfurization also comprises water flushing device, and water flushing device is used for rinsing the outer surface of pipe row.
In addition, the present embodiment wet desulphurization demister, can also arrange the one in flat Defrosting structure and ridge type Defrosting structure simultaneously, and makes flat Defrosting structure and ridge type Defrosting structure be placed in pipe row top, in conjunction with the demister of at least two kinds of structures, can promote except fog effect.
Embodiment two:
Present embodiments provide a kind of wet desulphurization device comprising wet desulphurization demister described in embodiment one, as shown in Figure 3, it comprises wet desulfuration tower 3, and wet desulphurization demister is placed in above the spraying layer 4 of wet desulfuration tower.
More specifically, the bottom of this wet desulfuration tower is provided with slurry pool 5, the sidewall of desulfurizing tower 3 is provided with desulfurizing tower entrance 6, and desulfurizing tower 3 top is provided with desulfurizing tower outlet 7, desulfurizing tower 3 inside is provided with above-mentioned spraying layer 4, and wet desulphurization demister is placed in above the spraying layer 4 of wet desulfuration tower.First flue gas enters desulfurizing tower by desulfurizing tower entrance, then through spraying layer, flue gas is cooled desulfurization, then mist separator of desulfurization is entered, the a large amount of calcium plaster drop carried in flue gas and particle are captured, neat stress after demist enters into back-end ductwork by desulfurizing tower outlet, and enters air eventually through chimney.
The wet desulphurization device that the present embodiment provides is owing to being provided with above-mentioned wet desulphurization demister, and it is less scaling, blocking, demist are effective.
Below know-why of the present invention is described in conjunction with specific embodiments.These describe just in order to explain principle of the present invention, and can not be interpreted as limiting the scope of the invention by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other detailed description of the invention of the present invention, and these modes all will fall within protection scope of the present invention.
Claims (10)
1. a wet desulphurization demister, it is characterized in that, comprise at least two-layer parallel pipe row (1), the two ends of described pipe row (1) are supported on support member (2) respectively, be staggeredly arranged between adjacent two-layer described pipe row (1), every layer of described pipe row (1) includes the many hollow tubules be parallel to each other (11), also comprise cooling medium source, at least part of described hollow tubule (11) is communicated with described cooling medium source, and described cooling medium source is used for providing cooling medium for described hollow tubule (11).
2. wet desulphurization demister according to claim 1, is characterized in that, described cooling medium is cooling water.
3. wet desulphurization demister according to claim 1, is characterized in that, described pipe row (1) is made up of fluorine-containing plastic material.
4. according to the arbitrary described wet desulphurization demister of claims 1 to 3, it is characterized in that, the spacing between two the adjacent described hollow tubules (11) being in same layer pipe row (1) be the 2-3 of the diameter of described hollow tubule (11) doubly.
5. according to the arbitrary described wet desulphurization demister of claims 1 to 3, it is characterized in that, the spacing between adjacent two-layer pipe row is 1-1.5 times of the diameter of described hollow tubule (11).
6. according to the arbitrary described wet desulphurization demister of claims 1 to 3, it is characterized in that, the number of plies of described pipe row is 5-15 layer.
7. according to the arbitrary described wet desulphurization demister of claims 1 to 3, it is characterized in that, the cross section of described hollow tubule (11) is circular or water-drop-shaped.
8. according to the arbitrary described wet desulphurization demister of claims 1 to 3, it is characterized in that, axis and the horizontal angle of described pipe row are 0 °-25 °.
9. according to the arbitrary described wet desulphurization demister of claims 1 to 3, it is characterized in that, described mist separator of desulfurization also comprises water flushing device, and described water flushing device is used for rinsing the outer surface that described pipe is arranged.
10. one kind comprises the wet desulphurization device of the arbitrary described wet desulphurization demister of claim 1 to 9, it is characterized in that, comprise wet desulfuration tower (3), described wet desulphurization demister is arranged at spraying layer (4) top of described wet desulfuration tower (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980617.9A CN105477896A (en) | 2015-12-23 | 2015-12-23 | Wet process desulphurization demisting device and wet process desulphurization device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510980617.9A CN105477896A (en) | 2015-12-23 | 2015-12-23 | Wet process desulphurization demisting device and wet process desulphurization device |
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| CN105477896A true CN105477896A (en) | 2016-04-13 |
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|---|---|---|---|
| CN201510980617.9A Pending CN105477896A (en) | 2015-12-23 | 2015-12-23 | Wet process desulphurization demisting device and wet process desulphurization device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105999755A (en) * | 2016-05-12 | 2016-10-12 | 西安热工研究院有限公司 | Cooling wet-desulphurization smoke demisting device |
| CN106914124A (en) * | 2017-04-24 | 2017-07-04 | 中国计量大学 | The heat pipe heat exchanging water saving anti-gypsum rain device of demisting in wet desulfuration tower |
| CN107042048A (en) * | 2017-03-16 | 2017-08-15 | 华南理工大学 | A kind of gravity heat-pipe type defogging method and demister |
| CN108722102A (en) * | 2018-07-27 | 2018-11-02 | 双良节能系统股份有限公司 | A kind of desulfurizer and water balance control method with flue gas condensing function in tower |
| CN109224726A (en) * | 2018-11-08 | 2019-01-18 | 大唐环境产业集团股份有限公司 | A kind of tubular type cloud cooperation-removal flue gas condenser |
| CN109772074A (en) * | 2017-11-10 | 2019-05-21 | 国家电投集团远达环保工程有限公司重庆科技分公司 | Flue gas receives water dedusting demister |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109772074A (en) * | 2017-11-10 | 2019-05-21 | 国家电投集团远达环保工程有限公司重庆科技分公司 | Flue gas receives water dedusting demister |
| CN108722102A (en) * | 2018-07-27 | 2018-11-02 | 双良节能系统股份有限公司 | A kind of desulfurizer and water balance control method with flue gas condensing function in tower |
| CN109224726A (en) * | 2018-11-08 | 2019-01-18 | 大唐环境产业集团股份有限公司 | A kind of tubular type cloud cooperation-removal flue gas condenser |
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Application publication date: 20160413 |