CN104368236B - A kind of smoke absorption tower of gas-liquid bidirectional guide - Google Patents
A kind of smoke absorption tower of gas-liquid bidirectional guide Download PDFInfo
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- CN104368236B CN104368236B CN201410614626.1A CN201410614626A CN104368236B CN 104368236 B CN104368236 B CN 104368236B CN 201410614626 A CN201410614626 A CN 201410614626A CN 104368236 B CN104368236 B CN 104368236B
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- gas
- absorption tower
- liquid
- smoke absorption
- baffle portion
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 71
- 239000007788 liquid Substances 0.000 title claims abstract description 49
- 239000000779 smoke Substances 0.000 title claims abstract description 47
- 230000002457 bidirectional effect Effects 0.000 title claims abstract description 32
- 239000003546 flue gas Substances 0.000 claims abstract description 39
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000002002 slurry Substances 0.000 claims abstract description 28
- 238000002955 isolation Methods 0.000 claims abstract description 22
- 238000005507 spraying Methods 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 239000007921 spray Substances 0.000 abstract description 14
- 238000012546 transfer Methods 0.000 abstract description 9
- 238000006477 desulfuration reaction Methods 0.000 description 12
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulfur dioxide Inorganic materials O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 7
- 238000000889 atomisation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000002745 absorbent Effects 0.000 description 3
- 239000002250 absorbent Substances 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007667 floating Methods 0.000 description 3
- 230000004927 fusion Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Abstract
The invention discloses a kind of smoke absorption tower of gas-liquid bidirectional guide, it is included in the slurry pool layer set gradually from bottom to up in smoke absorption tower, smoke inlet, spraying layer, demister layer and gas vent, gas-liquid bidirectional guide device layers are set between smoke inlet and spraying layer, gas-liquid bidirectional guide device layers by some circle isolation structures around forming, the isolation structure that often encloses again by some division boards laterally mutually splicing around forming.Compared with prior art, a kind of smoke absorption tower of gas-liquid bidirectional guide of the invention, by the water conservancy diversion gas-liquid function of gas-liquid bidirectional guide device layers, effectively increase the mass transfer area of gas-liquid, improve the contact area of flue gas and spray liquid, it is to avoid local gas-liquid merges insufficient problem in smoke absorption tower.
Description
Technical field
The present invention relates to a kind of smoke absorption tower for wet process of FGD, belong to field of environment protection equipment, especially
It is a kind of with the smoke absorption tower for making gas-liquid bidirectional guide function.
Background technology
Absorption tower is the main body and nucleus equipment of wet method fume desulfurizing system, and the performance and cost on absorption tower are in desulphurization system
Occupy very important status in design.According to the difference of gas-liquid contact pattern, the absorption tower of wet desulphurization can be divided into spray
Drench tower, packed tower, bubble tower, four kinds of patterns of liquid column tower.Due to spray column simple structure, operation and maintenance convenience, gas-liquid contact
Well, desulfuration efficiency is high and application comparative maturity in engineering, therefore, spray column is the main flow tower of current sulfur removal technology
Type, uptake zone is generally by the way of hollow-spraying-tower.
Common flue gas spray absorber is successively from bottom to top slurry pool area, smoke absorption area and except fog-zone.Flue gas from
Smoke absorption area bottom enters absorption tower, general in uptake zone to set 3-5 layers of shower, the multiple atomization sprays of each shower arrangement
Mouth, sprayed slurry drops to slurry pool area through the backward lower spray of atomizer atomization and with the vaporific of disperse, and from bottom to top
Smoke contacts mass transfer.A large amount of drops are carried by the flue gas after gas-liquid contact, by absorption tower top except the demister of fog-zone cuts
Stay and discharge absorption tower after isolating most of drop.The function of slurry pool is to receive and store absorption slurries, dissolves lime stone, drum
Wind aoxidizes CaSO3, crystallization generation gypsum.
Flue gas is reversely contacted with sprayed slurry in uptake zone, the SO in flue gas2To the process of diffusion mass transfer in sprayed slurry
Key effect is played to absorption tower desulfuration efficiency.And sprayed slurry is to SO in flue gas2Absorbing reaction speed depend on flue gas with
The many factors such as the relative velocity of slurries, effective mass transfer area, time of contact, to make flue gas be fully contacted with sprayed slurry, work
The general pattern using Multi-layer sprinkling in journey, every layer of uniform spraying arranges the mode of big flow nozzle, but in order to avoid sprayed slurry
Flow downward and do not have atomization absorption effect along inner wall of tower is absorbed, and when in many engineerings in order to prevent nearly interior wall nozzle long
Between directly wash away worn out phenomenon caused by absorption inner wall of tower, position of the atomizer in absorption tower typically have with inwall
Certain spacing, it is fewer than central area which results in the sprayed slurry overlay capacity for pressing close to absorption tower inner wall area, so absorb
The poorly efficient absorption blind area of flue gas of an inner wall is formed on tower section, in the poorly efficient absorption blind area of this flue gas, flue gas is obtained
Fully absorbing and wash and be expelled directly out outside absorption tower less than sprayed slurry, greatly reduces desulfuration efficiency.With certain 300MW fire
As a example by the supporting desulfuration absorbing tower of group of motors, absorption tower uptake zone diameter of section is 12m, and engineering test shows, absorption tower center
The desulfuration efficiency in domain is general all more than 99%, and the poorly efficient absorption of ring smoke for foring a width about 1.5m in nearly inwall is blind
Area, in the poorly efficient absorption blind area of flue gas, desulfuration efficiency is only capable of reaching 90% or so.Through adjusting, 90% or so SO2Escape amount occurs
In the poorly efficient absorption blind area of this flue gas.
It is new as country is tight to the receipts increasingly of environmental requirement《Fossil-fuel power plant atmospheric pollutant emission standard》(GB13223-
2011) to SO2Discharge standard greatly improve, particularly concentration of emission must not exceed 50mg/Nm in key area3, desulfurization is inhaled
The whole efficiency for receiving tower proposes requirement very high, as long as there is the poorly efficient absorption blind area of this flue gas in absorption tower, will make
Desulfuration efficiency is not up to standard.
The content of the invention
The technical problem to be solved in the invention is directed to above-mentioned the deficiencies in the prior art, and provides a kind of double using gas-liquid
The SO in absorption tower in flue gas at inwall is effectively improved to diversion function2The smoke absorption tower of uptake.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of smoke absorption tower of gas-liquid bidirectional guide, is included in the slurries set gradually from bottom to up in smoke absorption tower
Pond layer, smoke inlet, spraying layer, demister layer and gas vent, it is characterised in that：The smoke inlet and spraying layer it
Between set gas-liquid bidirectional guide device layers, the gas-liquid bidirectional guide device layers by it is some circle isolation structures around forming, often enclose
Isolation structure again by some division boards laterally mutually splicing around forming；The division board is divided into the first water conservancy diversion plate portion of bottom
Divide the second baffle portion with top, the first baffle portion in the vertical direction is parallel in smoke absorption tower
Wall, second baffle portion is located on the first baffle portion and is inclined to center in smoke absorption tower.
As further preferred scheme, mutually it is placed equidistant between the isolation structure of some circles, its spacing model
It is 80mm-200mm to enclose.
Used as further preferred scheme, the overall lateral contour shape of the isolation structure is interior with smoke absorption tower
Contouring shape is corresponding, and the gas-liquid bidirectional guide device layers are by the isolation structures of 1 circle to 5 circles around forming.
As further preferred scheme, the position that first baffle portion and the second baffle portion are connected
With arc coupling part；The longitudinal length of first baffle portion is 400mm-800mm, second baffle portion
Longitudinal length be 400mm-800mm, the arc radius scope of the arc coupling part is 0mm-500mm.
Used as further preferred scheme, second baffle portion is located on the first baffle portion to be inhaled to flue gas
It is 20 ° -45 ° to receive the inclined angle in center in tower.
As further preferred scheme, have for being fixed on cigarette by bottom position in first baffle portion
The gusset of aspiration inner wall of tower.
Beneficial effect
Compared with prior art, the smoke absorption tower of a kind of gas-liquid bidirectional guide of the invention, mainly by being arranged on cigarette
Gas-liquid bidirectional guide device layers corresponding with smoke absorption inner wall of tower shape between gas entrance and spraying layer, realize flue gas and spray
Slurries effective integration and bidirectional guide in the part are drenched, mass-transfer efficiency is improved, especially by the first baffle portion of bottom
In the vertical direction can effectively limit the floating from bottom to top by flue gas in this region parallel to the inwall of smoke absorption tower
And diffusion, the poorly efficient absorption blind area in the region is eliminated, improve the desulfuration efficiency of side wall region flue gas；And pass through top to absorption
, not only can be oriented to the atomizing spray liquid that fall at side wall by the second tilted baffle portion of tower, fully just locate with side wall
In the smoke contacts fusion for rising, the flue gas for being in absorption tower center that will can also more concentrate from bottom to top draws in,
Form absorption tower central absorbent stiffened region.Gas-liquid is flowed to using the advantage of structure and fusion is controlled and absorbs and adds
By force, mainly with advantages below：（1）Gas-liquid mass transfer area is increase effectively, the flue gas existed in conventional suction tower is eliminated low
The SO that effect absorbs blind area and causes2Escape phenomenon, improves desulfuration efficiency；（2）The ring-like gas-liquid bidirectional guide device layers of multilayer
Can effectively dredge the flow direction of flue gas and sprayed slurry, reduce the floating of flue gas, the space of manual control gas-liquid mass transfer and stream
Amount, is easy to regulation；（3）The position of other equipment in smoke absorption tower need not be changed, is occupied little space, it is with low cost.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the structural representation of gas-liquid bidirectional guide device layers；
Wherein, 1- slurry pools layer, 2- smoke inlets, 3- spraying layers, 4- demisters layer, 5- gas vents, 6- gas-liquids are two-way
Guiding device layer, the baffle portions of 61- first, the baffle portions of 62- second, 63- arcs coupling part.
Specific embodiment
The technical scheme that the invention will now be described in detail with reference to the accompanying drawings.
As illustrated, a kind of smoke absorption tower of gas-liquid bidirectional guide of the invention, in smoke absorption tower from bottom to up
There is slurry pool layer 1, smoke inlet 2, spraying layer 3, demister layer 4 and gas vent 5, in the He of the smoke inlet 2 successively
There are gas-liquid bidirectional guide device layers 6 between spraying layer 3, generally gas-liquid bidirectional guide device layers 6 are fixed on by supporting structure
Inside absorption tower, containing SO2Flue gas from smoke inlet 2 introduce absorption tower in, pass upward through gas-liquid bidirectional guide device layers 6, spray
Drenching layer 3, demister layer 4, finally discharges in gas vent 5, the atomization desulfurization slurry and smoke contacts of the spray of spraying layer 3, makes cigarette
Sulfur dioxide in gas is fully absorbed by slurries, and slurry pool layer 1 is finally fallen into down, and gas-liquid bidirectional guide device layers 6 are along absorption
Inner wall of tower is set, and specifically gas-liquid bidirectional guide device layers 6 are to change adaptable outer according to the planform on absorption tower
The overall lateral contour shape of shape, i.e. isolation structure is corresponding with the in-profile shape of smoke absorption tower.
Gas-liquid bidirectional guide device layers 6 by some circle isolation structures around forming, between the isolation structure of some circles mutually
Be placed equidistant, equidistant design can avoid due to bottom flue gas diffuse up it is uneven, cause to be merged not with sprayed slurry
Uniformly, the isolation structure for often enclosing laterally mutually is spliced around forming by some division boards again, and each division board is in a lateral direction
Preferably also there is certain radian；The division board is divided into the first baffle portion 61 of bottom and second baffle portion on top
62, the position that the first baffle portion 61 is connected with the second baffle portion 62 has arc coupling part 63, arc connection
The arcuation of part 63 designs the amplification very little for causing flue gas resistance, while effectively reducing atomization slurry drop by bottom the
The generation of the phenomenon of coalescence again and near-wall air curtain during second baffle portion 62 on one baffle portion 61 and top, prevents
Slurries are long-term to absorbing washing away and corrosion and damage for inner wall of tower.
Specifically, flue gas is divided into three in uphill process in absorption tower and flows to mode, is 1. in outmost turns isolation junction
Flue gas between structure and absorption inner wall of tower, 2. the flue gas between some isolation structures, is 3. in by innermost circle isolation structure
Surround part flue gas, the in the vertical direction of the first baffle portion 61 parallel to smoke absorption tower inwall, the first deflector
Part 61 is set near absorption tower inner wall position, can limit the diffusion of side wall region flue gas, is passed which forms side wall gas-liquid
Matter concentrated area, strengthens the contact of the sprayed slurry and sulfur dioxide in this region, improves the mass-transfer efficiency with flue gas, and institute
State the second baffle portion 62 to be based on being inclined to center in smoke absorption tower on the first baffle portion 61, and pass through top
To the tilted part of the second deflector 62 in absorption tower, the atomizing spray liquid for falling can be oriented at side wall, fully and side wall
The smoke contacts fusion of rising is in, the flue gas for being in absorption tower center that will can also more concentrate from bottom to top is received
Hold together, form absorption tower central absorbent stiffened region.The setting of multi-turn isolation structure, by the consolidating from level to level of spacing each other
Surely rise flue gas, it is ensured that the atomizing spray liquid contact that can be lowered by, reduce the escape phenomenon of flue gas, gas-liquid bidirectional guide device layers
The gas-liquid control mode of 6 this bidirectional guides, can prevent flue gas under the influence of ascending air, unstable floating, effectively
Gas-liquid mass transfer area is increased, the SO that there is the poorly efficient absorption blind area of flue gas in conventional suction tower and cause is eliminated2Escape phenomenon,
Improve desulfuration efficiency.
The spacing range of the isolation structure of some circles is 80mm-200mm, and gas-liquid bidirectional guide device layers 6 are general to be enclosed extremely by 1
The isolation structures of 5 circles are around forming, and according to Practical Project condition and uptake zone size, and the longitudinal direction of the first baffle portion 61 is long
It is 400-800mm to spend, and the longitudinal length of the second baffle portion 62 is also 400mm-800mm, the circular arc of arc coupling part 63
Radius is 0mm-500mm, and second baffle portion 62 is based on the first baffle portion 61 in smoke absorption tower
The inclined angle in center is 20 ° -45 °, and gas-liquid bidirectional guide device layers 6 have certain to corrosion-resistant and erosive wear resistant
It is required that, can using alloy, fiberglass, polypropylene or other tolerance spray column inner absorbent slurries wash away and etching condition material
Material makes.
Claims (1)
1. a kind of smoke absorption tower of gas-liquid bidirectional guide, is included in the slurry pool set gradually from bottom to up in smoke absorption tower
Layer (1), smoke inlet (2), spraying layer (3), demister layer (4) and gas vent (5), it is characterised in that：In the flue gas
Between entrance (2) and spraying layer (3) set gas-liquid bidirectional guide device layers (6), the gas-liquid bidirectional guide device layers (6) if by
Dry circle isolation structure around forming, the isolation structure for often enclosing again by some division boards laterally mutually splicing around forming；It is described every
It is divided into first baffle portion (61) of bottom and second baffle portion (62) on top, first baffle portion from plate
(61), parallel to the inwall of smoke absorption tower, second baffle portion (62) is positioned at the first water conservancy diversion plate portion in the vertical direction
Divide on (61) and inclined to center in smoke absorption tower；Mutually it is placed equidistant between the isolation structure of some circles, its
Spacing range is 80mm-200mm；The overall lateral contour shape of the isolation structure and the in-profile shape of smoke absorption tower
Corresponding, the gas-liquid bidirectional guide device layers (6) are by the isolation structures of 1 circle to 5 circles around forming；The first water conservancy diversion plate portion
The position for dividing (61) to be connected with the second baffle portion (62) has arc coupling part (63)；First baffle portion
(61) longitudinal length is 400mm-800mm, and the longitudinal length of second baffle portion (62) is 400mm-800mm, institute
The arc radius scope for stating arc coupling part (63) is 0mm-500mm；Second baffle portion (62) is led positioned at first
To the inclined angle in center in smoke absorption tower it is 20 ° -45 ° on stream plate part (61)；In first baffle portion
(61) there is the gusset for being fixed on smoke absorption inner wall of tower by bottom position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410614626.1A CN104368236B (en) | 2014-11-05 | 2014-11-05 | A kind of smoke absorption tower of gas-liquid bidirectional guide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410614626.1A CN104368236B (en) | 2014-11-05 | 2014-11-05 | A kind of smoke absorption tower of gas-liquid bidirectional guide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104368236A CN104368236A (en) | 2015-02-25 |
| CN104368236B true CN104368236B (en) | 2017-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410614626.1A Active CN104368236B (en) | 2014-11-05 | 2014-11-05 | A kind of smoke absorption tower of gas-liquid bidirectional guide |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107051177B (en) * | 2017-06-09 | 2023-07-25 | 大唐环境产业集团股份有限公司 | Desulfurizing dust-removing pneumatic-hydraulic dynamic cyclone synergistic device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201366312Y (en) * | 2009-02-26 | 2009-12-23 | 吴国存 | Energy-saving high-efficient desulphurization dust removing device |
| CN202191836U (en) * | 2011-08-02 | 2012-04-18 | 何平 | Gas-liquid coupler for wet desulphurization device and wet desulphurization device |
| CN204247064U (en) * | 2014-11-05 | 2015-04-08 | 江苏中顺节能科技有限公司 | A kind of smoke absorption tower of gas-liquid bidirectional guide |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3269332B2 (en) * | 1995-06-06 | 2002-03-25 | 三菱マテリアル株式会社 | Spray tower |
| DE50114107D1 (en) * | 2000-05-08 | 2008-08-28 | Sulzer Chemtech Ag | Column with a bottom between Füllkörperabschnitten |
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2014
- 2014-11-05 CN CN201410614626.1A patent/CN104368236B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201366312Y (en) * | 2009-02-26 | 2009-12-23 | 吴国存 | Energy-saving high-efficient desulphurization dust removing device |
| CN202191836U (en) * | 2011-08-02 | 2012-04-18 | 何平 | Gas-liquid coupler for wet desulphurization device and wet desulphurization device |
| CN204247064U (en) * | 2014-11-05 | 2015-04-08 | 江苏中顺节能科技有限公司 | A kind of smoke absorption tower of gas-liquid bidirectional guide |
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Denomination of invention: Flue gas absorption tower with bidirectional gas-liquid guiding function Effective date of registration: 20181108 Granted publication date: 20170707 Pledgee: Bank of Jiangsu, Limited by Share Ltd, Nanjing Jiangning branch Pledgor: Along energy-conservation Science and Technology Ltd. in Jiangsu Registration number: 2018320000262 |
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Denomination of invention: Flue gas absorption tower with bidirectional gas-liquid guiding function Effective date of registration: 20190911 Granted publication date: 20170707 Pledgee: Bank of Jiangsu, Limited by Share Ltd, Nanjing Jiangning branch Pledgor: Along energy-conservation Science and Technology Ltd. in Jiangsu Registration number: Y2019980000142 |
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Date of cancellation: 20200902 Granted publication date: 20170707 Pledgee: Bank of Jiangsu Limited by Share Ltd. Nanjing Jiangning branch Pledgor: JIANGSU ZHONGSHUN ENERGY CONSERVATION TECHNOLOGY Co.,Ltd. Registration number: Y2019980000142 |
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Denomination of invention: A flue gas absorption tower with gas-liquid two-way diversion Effective date of registration: 20200903 Granted publication date: 20170707 Pledgee: Bank of Jiangsu Limited by Share Ltd. Nanjing Jiangning branch Pledgor: JIANGSU ZHONGSHUN ENERGY CONSERVATION TECHNOLOGY Co.,Ltd. Registration number: Y2020980005696 |