CN109621558A - Back-mounted rotary for flue gas water removal divides dehydration device - Google Patents
Back-mounted rotary for flue gas water removal divides dehydration device Download PDFInfo
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- CN109621558A CN109621558A CN201910069010.3A CN201910069010A CN109621558A CN 109621558 A CN109621558 A CN 109621558A CN 201910069010 A CN201910069010 A CN 201910069010A CN 109621558 A CN109621558 A CN 109621558A
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- flue gas
- waterpipe
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- water removal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/14—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
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- 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
- B01D53/26—Drying gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Separating Particles In Gases By Inertia (AREA)
Abstract
The invention belongs to Wet Flue Gas Desulfurization Technique tail gas to be dehydrated post-processing technology field, provide the back-mounted rotary point dehydration device for flue gas water removal, it adds on the basis of flue gas de-watering apparatus except waterpipe, flue gas is through smoke inlet successively through rotation leaflet piece and after removing waterpipe dehydration, gas is discharged from exhanst gas outlet, and water body is discharged from the discharge outlet except waterpipe lower part.In actual work, band shredded tobacco for water pipes gas passes through admission line into after removing waterpipe to the present invention, under the guide functions of rotation separating device and reverse frustoconic filler, it gets on wall surface dewatering filling, under the action of high molecular hydrophobic material, droplets agglomerate convergence flow goes out flue, achievees the purpose that final fume-dehydrating.
Description
Technical field
The invention belongs to Wet Flue Gas Desulfurization Technique tail gas to be dehydrated post-processing technology field, specifically a kind of to be used for what flue gas removed water
Back-mounted rotary divides dehydration device.
Background technique
SO in factory smoke2Discharge be one of the main reason for causing atmosphere pollution, be normal using Wet Flue Gas Desulfurization Technique
The technology seen.But the tail gas aqueous amount (gaseous state and liquid) through Wet Flue Gas Desulfurization Technique is up to 20%, flue gas can be in flue tube wall
Being gathered into drop will cause phenomenon of raining, and causes to corrode to tube wall even blower, wet desulfurization system is caused to stop transport, in some instances it may even be possible to
Lead to entire compressor emergency shutdown.The common solution of fume-dehydrating is corrugated plating demister, separates and recovers the efficiency of liquid water
It can achieve 50%.The principle being dehydrated in flue is that fine droplets mainly by the gravity of air-flow and blow support in the air-flow of rising
The effect of power.When air-flow is when blowing towing force less than drop gravity, liquid water can be separated and recovered by gravity.Corrugated plating demister
It is inertia force progress steam-water separation when being swerved using flue gas.When humid flue gas passes through intensive plate, by gas
The centrifugal force of stream bending flowing is by drop separation and it is made to be adhered to plate wall surface formation thin liquid film, and forms liquid in plate lower end
Under drippage.But demister can not separate the vaporous water mixed, and will cause biggish crushing, or even cause flue blockage.
Wave-shaped plate demister can be influenced in actual moving process by factors such as boiler ash content, flue gas flow rates, when demister surface is adhered to
When a large amount of or foulant, humid flue gas flows through demister with certain speed, and fog collides with the impurity on corrugated sheet and stopped
On corrugated sheet, since the flue gas that drop cannot be assembled to be raised is taken away again, efficiency will decline.Meanwhile demister
Dehydration efficiency increase with the increase of air velocity.But gas velocity increase to certain speed after, to particle carrying capacity increase
By force, a large amount of small droplet particles are not allowed to be readily removable, and air-flow can destroy the liquid film of blade wall surface formation, cause two sub-band water,
To reduce dehydration efficiency
It is found after to the retrieval of existing technical literature, " demister operation is special in spray desulfurizing tower by He Yangpeng, Tao Ming
Property " gas flow rate, demister arrangement and combination and demister and flue gas have been inquired into (" China Power " 2015 (7)) text
Influence of the factors such as entrance interlamellar spacing to demister dehydrating effect.Pass through the liquid in the air-flow before and after experiment quantitative determination demister
Content is dripped, the dehydrating effect of demister under operating condition is not passed through.By test quantitatively give the demister critical speed,
The data such as distributing position and combination.But the paper gives a most suitable job just for existing demister
The drawbacks of environment, there is no solution corrugated plating demisters truly.
Chinese Patent Application No. CN106582120A disclose a kind of fume-dehydrating vapor-liquid separation cylinder and dehydration device and
System.The device provides a vapor-liquid separation scheme for humid flue gas, using the cylinder for having multiple openings, utilizes gas-liquid density
Drop is thrown to barrel by difference, flows out it from opening.The invention carries out simple primary point to mixed term merely with mechanical structure
From, it is easy to cause the reentrainment phenomenon of drop.
Summary of the invention
The present invention In view of the above shortcomings of the prior art, provides a kind of back-mounted rotary point dehydration device of flue gas water removal
Design scheme carries out dual separation using the mechanism and special hydrophobic material of rotation point, it is ensured that fume-dehydrating efficiency.
Technical solution of the present invention:
Back-mounted rotary for flue gas water removal divides dehydration device, adds on the basis of flue gas de-watering apparatus except waterpipe 3, cigarette
Gas through smoke inlet 2 successively through rotation leaflet piece 1 and except after 3 dehydration of waterpipe, gas is discharged from exhanst gas outlet 4, water body from
Except the discharge outlet discharge of 3 lower part of waterpipe；
3 both ends of waterpipe of removing are fixed as one by flange and flue gas de-watering apparatus, the cigarette of flue gas de-watering apparatus
Feed channel is stretched to except in waterpipe 3；Except the entrance end side of waterpipe 3 is equipped with discharge outlet, height is lower than flue, real
Existing effect draining, prevents liquid-phase reflux；Except the inner wall of waterpipe 3 is fixed with wall surface dewatering filling 6, make moisture in air condensation simultaneously
Under convergence flow；Except 3 hangs inside of waterpipe has reverse frustoconic water conservancy diversion filler 5, make by flue gas water conservancy diversion to wall surface dewatering filling
6。
The described internal diameter except waterpipe 3 is greater than the internal diameter of smoke inlet 2.
Include various hydrophobic filler in the wall surface dewatering filling 6, increase flue gas and contact surface area, promotes drop
Condensation, and liquid is not adsorbed, be conducive to drop and flow down, the working efficiency under not influencing for a long time avoids the occurrence of reentrainment
Phenomenon.
The structure of the dewatering filling 6 is that surface portion is folded into the cylindric of center channel, guarantees the infiltration of access
Rate to reduce crushing, and increases the contact area of flue gas and filler.
The dewatering filling 6 immerses certain high molecular hydrophobic material 5 after needing immersion to carry out microwave cleaning in acetone and divides
Clock air-dries in 70 DEG C of environment after taking-up, so that it is plated one layer of high molecular hydrophobic material, to reach hydrophobic effect.
Beneficial effects of the present invention: in actual work, band shredded tobacco for water pipes gas passes through admission line into after removing waterpipe to the present invention,
Under the guide functions of rotation separating device and reverse frustoconic filler, get on wall surface dewatering filling, in high molecular hydrophobic material
Under effect, droplets agglomerate convergence flow goes out flue, achievees the purpose that final fume-dehydrating.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention.
Fig. 2 is rotation leaflet chip architecture schematic diagram.
Fig. 3 is taper filling-material structure schematic diagram.
Fig. 4 is dewatering filling schematic diagram.
In figure: 1 rotation leaflet piece；2 admission lines；3 remove waterpipe；4 exhanst gas outlets；5 reverse frustoconic water conservancy diversion fillers；6 wall surfaces
Dewatering filling layer.
Specific embodiment
It elaborates below to the embodiment of the present invention, the present embodiment carries out under the premise of the technical scheme of the present invention
Implement, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following implementation
Example.
It as depicted in figs. 1 and 2, is fume-dehydrating etc. than model, exhaust gases passes internal diameter is 209mm, and whole height is
4000mm provides the 1000Nm of simulation water content 20% by preposition experimental situation simulation3The flue gas of/h, and guarantee to remove waterpipe
Operating temperature is 60 DEG C, and is arranged and compares test without special designing pipeline.
The rotation divides the mounting means of separator, true according to the specific geometric dimension of flue and its internal flow field situation
It is fixed to be gone out by what CFD software emulated, rotation leaflet piece is installed to according to identified optimal location above away from admission line upper end H
Place removes the long λ of waterpipe.The mechanism of the rotation leaflet piece, in the case where guaranteeing crushing, rotation leaflet piece has 6 blades.Rounding
Platform shape filler path is d, major diameter D, high h.And the filler for having plated hydrophobic coating is placed in dewatering filling layer, filler diameter is
D1, high h1.
Wherein: H=400mm；λ=600mm；D=100mm；D=200mm；H=300mm；D1=38mm；H1=45mm；
Result of implementation
Divide in dehydration test device in the back-mounted rotary of above-described embodiment, extracts 250ML respectively in two smoke outlets
Tail gas is handled, and the electronic balance that service precision is 0.1mg carries out weighing measurement, measurement result is as follows:
The result shows that present apparatus dehydration rate can reach 86.43%, the target of fume-dehydrating can be effectively achieved.
Claims (3)
1. a kind of back-mounted rotary for flue gas water removal divides dehydration device, which is characterized in that increase on the basis of flue gas de-watering apparatus
If removing waterpipe (3), flue gas is after smoke inlet (2) is successively revolved leaflet piece (1) and removes waterpipe (3) dehydration, gas
It is discharged from exhanst gas outlet (4), water body is discharged from the discharge outlet except waterpipe (3) lower part；
Waterpipe (3) both ends of removing are fixed as one by flange and flue gas de-watering apparatus, the flue gas of flue gas de-watering apparatus
Pipeline is stretched to except in waterpipe (3)；Except the entrance end side of waterpipe (3) is equipped with discharge outlet, height is lower than flue,
It realizes effectively draining, prevents liquid-phase reflux；Except the inner wall of waterpipe (3) is fixed with wall surface dewatering filling (6), make moisture in air
It condenses and under convergence flow；Except waterpipe (3) hangs inside has reverse frustoconic water conservancy diversion filler (5), make by flue gas water conservancy diversion to wall
Face dewatering filling (6).
2. the back-mounted rotary according to claim 1 for flue gas water removal divides dehydration device, which is characterized in that the water removal
The internal diameter of pipeline (3) is greater than the internal diameter of smoke inlet (2).
3. the back-mounted rotary according to claim 1 or 2 for flue gas water removal divides dehydration device, which is characterized in that described
It include various hydrophobic filler in wall surface dewatering filling (6), the structure of dewatering filling is the circle that surface portion is folded into center channel
Column, dewatering filling need impregnate in acetone carry out microwave cleaning after immerse certain high molecular hydrophobic material 5 minutes, after taking-up
It is air-dried in 70 DEG C of environment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910069010.3A CN109621558B (en) | 2019-01-24 | 2019-01-24 | A rearmounted dewatering device that divides soon for flue gas dewatering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910069010.3A CN109621558B (en) | 2019-01-24 | 2019-01-24 | A rearmounted dewatering device that divides soon for flue gas dewatering |
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| Publication Number | Publication Date |
|---|---|
| CN109621558A true CN109621558A (en) | 2019-04-16 |
| CN109621558B CN109621558B (en) | 2020-11-06 |
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| CN201910069010.3A Active CN109621558B (en) | 2019-01-24 | 2019-01-24 | A rearmounted dewatering device that divides soon for flue gas dewatering |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110327746A (en) * | 2019-08-15 | 2019-10-15 | 安徽铜冠有色金属（池州）有限责任公司 | A kind of compressed air de-watering apparatus |
| CN110575738A (en) * | 2019-10-14 | 2019-12-17 | 中国沈阳晶鑫环保科技有限公司 | comprehensive dehydration method for wet flue gas |
| CN110575737A (en) * | 2019-10-14 | 2019-12-17 | 中国沈阳晶鑫环保科技有限公司 | Array type pressurization water separating device |
| CN110732225A (en) * | 2019-11-12 | 2020-01-31 | 福州大学 | Flue water removal device and water removal method |
| CN114570152A (en) * | 2022-03-28 | 2022-06-03 | 南京诺令生物科技有限公司 | Integrated device for separating and purifying low-particulate-matter gas and separating and purifying method thereof |
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| CN203540220U (en) * | 2013-11-05 | 2014-04-16 | 中冶东方工程技术有限公司 | Dehydrating device of steam discharge system |
| CN203540222U (en) * | 2013-10-17 | 2014-04-16 | 江苏欧超环保科技有限公司 | High-efficiency demister for wet desulphurization |
| CN106345183A (en) * | 2016-08-31 | 2017-01-25 | 张明鑫 | Independent dedusting demisting tower comprising two stages of dynamic centrifugal demisters |
| CN106582121A (en) * | 2017-01-11 | 2017-04-26 | 南京宇行环保科技有限公司 | Tube bundle type dedusting and demisting device with liquid collection function |
| CN206846762U (en) * | 2017-06-12 | 2018-01-05 | 江苏海鹏防腐设备有限公司 | A kind of Novel chimney water collection device |
| CN108772213A (en) * | 2018-06-27 | 2018-11-09 | 安徽工业大学 | A kind of efficient coal gas of converter eddy flow dehydration device and its dewatering |
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| FI52430B (en) * | 1970-05-08 | 1977-05-31 | Univ Kingston | |
| RU2007111362A (en) * | 2007-03-28 | 2008-10-10 | Закрытое акционерное общество "Центральное конструкторское бюро нефтегазовой промышленности" (ЗАО "ЦКБ НГП") (RU) | METHOD FOR GAS FLOW LIQUID SEPARATION AND DEVICE FOR ITS IMPLEMENTATION |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110327746A (en) * | 2019-08-15 | 2019-10-15 | 安徽铜冠有色金属（池州）有限责任公司 | A kind of compressed air de-watering apparatus |
| CN110575738A (en) * | 2019-10-14 | 2019-12-17 | 中国沈阳晶鑫环保科技有限公司 | comprehensive dehydration method for wet flue gas |
| CN110575737A (en) * | 2019-10-14 | 2019-12-17 | 中国沈阳晶鑫环保科技有限公司 | Array type pressurization water separating device |
| CN110575737B (en) * | 2019-10-14 | 2021-12-03 | 中国沈阳晶鑫环保科技有限公司 | Array type pressurization water separating device |
| CN110575738B (en) * | 2019-10-14 | 2021-12-03 | 中国沈阳晶鑫环保科技有限公司 | Comprehensive dehydration method for wet flue gas |
| CN110732225A (en) * | 2019-11-12 | 2020-01-31 | 福州大学 | Flue water removal device and water removal method |
| CN114570152A (en) * | 2022-03-28 | 2022-06-03 | 南京诺令生物科技有限公司 | Integrated device for separating and purifying low-particulate-matter gas and separating and purifying method thereof |
| CN114570152B (en) * | 2022-03-28 | 2023-12-19 | 南京诺令生物科技有限公司 | Integrated device for separating and purifying low-particulate gas and separation and purification method thereof |
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| CN109621558B (en) | 2020-11-06 |
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