CN206315669U - The flue gas even distribution and desulfurization intensifying device of wet desulphurization absorption tower - Google Patents
The flue gas even distribution and desulfurization intensifying device of wet desulphurization absorption tower Download PDFInfo
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- CN206315669U CN206315669U CN201620553791.5U CN201620553791U CN206315669U CN 206315669 U CN206315669 U CN 206315669U CN 201620553791 U CN201620553791 U CN 201620553791U CN 206315669 U CN206315669 U CN 206315669U
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- even distribution
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- flue gas
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Abstract
The utility model is related to Wet Flue Gas Desulfurization Technique field, the specifically related to flue gas even distribution of wet desulphurization absorption tower and desulfurization intensifying device, including one layer of jet tray and three layers of flow-disturbing even distribution device two parts, every layer of flow-disturbing even distribution device includes 8 DN32 flue gas disturbed flow pipe, 8 flue gas disturbed flow pipes are fixed by center fixing device, the jet tray is rectangular slab, three layers of flow-disturbing even distribution device are cylindrical shape, the cylinder inner wall of every layer of flow-disturbing even distribution device is provided with through hole, one end of the flue gas disturbed flow pipe is deeply in the inner wall hole of corresponding each layer flow-disturbing even distribution device, and sealing is fixed by welding, the other end is fixed together with center fixing device using welding manner, using three layers of flow-disturbing even distribution device and one layer of desulfurization slurry injection apparatus, it ensure that in the case where serum recycle amount is constant, reach SO2Minimum discharge, saving energy consumption.
Description
Technical field
The utility model is related to Wet Flue Gas Desulfurization Technique field, and in particular to a kind of flue gas even distribution of wet desulphurization absorption tower and
Desulfurization intensifying device.
Background technology
SO2Control technology be broadly divided into burning before desulfurization, burning in desulfurization and burning after desulfurization.Desulfurization refers to pair before burning
Fuel is handled, such as coal washing, gasification, liquefaction；Desulfurization refers in desulfuration in furnace, such as fluidized bed combustion desulfurization, stove in burning
Calcium injection and desulfurization, capturing sulfur briquette and utilization sulfur-removing additives etc.；Desulfurization is to refer to flue gas desulfurization after burning, and what is used both at home and abroad at present is de-
In sulphur technology, the method mainly used is still flue gas desulfurization.And based Wet Process Flue Gas is gas liquid reaction, its desulphurization reaction
Speed is fast, and desulfuration efficiency is high, and calcium utilization is high, when calcium sulfur ratio is in 1.02-1.05, desulfuration efficiency typically can reach 95% with
On, most of flue gas desulfurization of large-scale coal-fired power station boiler uses this technique.According to International Energy Agency's coal research tissue system
Meter, wet desulphurization accounts for 85% that the unit total capacity of flue gas desulfurization is installed in the world.
1) limestone/gypsum wet flue gas desulphurization SO2Absorb double-film theory
During limestone/gypsum wet flue gas desulphurization, SO2Absorption mechanism have a variety of different theories, wherein applying
It is most widely double-film theory.With reference to bimodulus theory it is known that increase gas liquid interfacial area, raising gas-liquid mass transfer efficiency are shadows
Ring desulfuration efficiency very crucial factor.
2) increasingly stricter with Environmental Protection in China standard, original Limestone-gypsum Wet Flue Gas Desulfurization Process system can not
The requirement of qualified discharge is met, when desulphurization system is transformed, conventional technology has increase liquid-gas ratio, increase spraying layer and coordinates efficient
Nozzle, increase pallet, double-column in series etc..Increase operation liquid-gas ratio, can increase desulfurization slurry consumption, reduction lime stone slurry
Utilization rate, influences gypsum qualitt；Using alloy pallet, alloy pallet perforate is small and dense, and running resistance is about 6-800Pa, resistance
Under height, longtime running, easy fouling on pallet causes the increase of later stage running resistance；Using increase spraying layer and cooperation efficiently spray
The reforming mode of mouth, then need to increase desulfurizing tower, original absorption tower and absorption tower foundation is reinforced, investment cost is higher,
Quantities is larger；Using double-column in series, investment cost has not only been significantly greatly increased, and has caused the increase of air-introduced machine power consumption, it is unfavorable
In energy-conservation, there is the risk for causing desulfurization air inducing compressing head not enough after transformation, for the compact power plant in in-site installation position,
Implement more difficult.
However, found in the research of wet desulphurization absorption tower, by coverage rate and nozzle it is uniform, sprayed using hollow cone
The methods such as mouth make slurries side uniform as far as possible.And fume side is in first layer and second layer spraying layer conversion zone pole skewness
It is even, gas liquid interfacial area is reduced, so as to influence smoke desulfurization efficiency.
Utility model content
The purpose of this utility model is to overcome above mentioned problem, is absorbed for alloy pallet there is provided a kind of wet desulphurization
Tower inlet flue gas is uniform and desulfurization intensifying device, is constituted using three layers of flow-disturbing even distribution device and one layer of desulfurization slurry injection apparatus,
So as to ensure, in the case where serum recycle amount is constant, to reach SO2Minimum discharge, saving energy consumption, reduce device operation into
This, improves the uniform effect of original desulphurization system flue gas and desulfurization slurry, and can effectively improve gas-liquid mass transfer efficiency, simultaneously
Make SR increase not too large.
The utility model is achieved through the following technical solutions：
A kind of wet desulphurization absorption tower inlet flue gas described in the utility model is uniform and desulfurization intensifying device, including one layer
Jet tray and three layers of flow-disturbing even distribution device two parts, three layers of flow-disturbing even distribution device include the first flow-disturbing even distribution device, second
Flow-disturbing even distribution device and the 3rd flow-disturbing even distribution device, every layer of flow-disturbing even distribution device include 8 DN32 flue gas disturbed flow pipe, 8
Flue gas disturbed flow pipe is fixed by center fixing device, and the jet tray is rectangular slab, and three layers of flow-disturbing even distribution device are cylinder
Shape, the cylinder inner wall of every layer of flow-disturbing even distribution device is provided with through hole, and deeply corresponding each layer flow-disturbing is equal for one end of the flue gas disturbed flow pipe
In the inner wall hole of cloth apparatus, and sealing is fixed by welding, the other end is fixed with center fixing device using welding manner
Together.
Further, the flue gas even distribution of the wet desulphurization absorption tower and desulfurization intensifying device are using two sections of shapings, jet tray
It is the square plate that the length of side is 1.2-1.4m that outside, which surrounds plate, is highly 0.1-0.35m, jet tray and three layers of flow-disturbing even distribution device
It is connected by reducing, connected mode is welding.
Further, the jet tray is symmetrical with a diameter of center line both sides in circular section.
Further, the angle of the jet tray and horizontal plane is 45-65 °, and angle can be entered according to air inducing compressing head allowance
Row adjustment.
Further, the transverse pitch of the jet tray is 40-80mm, and distance can be adjusted according to air inducing compressing head allowance
It is whole.
After said structure, the beneficial effects of the utility model are：The utility model it using three layers of flue gas flow-disturbing it is equal
Cloth apparatus, the turbulent flow for not only making flue gas formation fiercer, increases the contact area of air-liquid two-phase, also improves air-liquid two-phase
Mass transfer rate, using turbulent flow of the jet tray to loop slurry, further removes SO2, in the case where not increasing spraying layer,
Realize further making full use of for desulfurizing tower loop slurry.When wet desulphurization minimum discharge is transformed, when running into sulfur dioxide
When absorption efficiency needs to improve, and when setting up double-column in series not enough economy or the little allowance of draught fan system pressure, it is applicable
Property is stronger.
Brief description of the drawings
Fig. 1 is flue gas even distribution of the present utility model and desulfurization intensifying device structure chart；
Fig. 2 is jet tray structure chart of the present utility model；
Fig. 3 is three layers of flow-disturbing even distribution device A-A profiles of the present utility model；
Fig. 4 is individual layer flue gas disturbing flow device structure chart of the present utility model；
Fig. 5 is flow-disturbing tube hub fixture structure figure of the present utility model；
Description of reference numerals：
1st, jet tray；2nd, three layers of flow-disturbing even distribution device；3rd, the first flow-disturbing even distribution device；
4th, the second flow-disturbing even distribution device；5th, the 3rd flow-disturbing even distribution device；6th, flue gas disturbed flow pipe；
7th, center fixing device.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings.
As shown in Figures 1 to 5, a kind of wet desulphurization absorption tower inlet flue gas described in the utility model is uniform and desulfurization is strong
Makeup is put, including one layer of jet tray 1 and three layers of two parts of flow-disturbing even distribution device 2, and three layers of flow-disturbing even distribution device 2 includes first
Flow-disturbing even distribution device 3, the second flow-disturbing even distribution device 4 and the 3rd flow-disturbing even distribution device 5, every layer of flow-disturbing even distribution device (3,4,5) is
6,8 flue gas disturbed flow pipes of flue gas disturbed flow pipe including 8 DN32 are fixed by center fixing device 7, and the jet tray 1 is
Rectangular slab, three layers of flow-disturbing even distribution device 2 are cylindrical shape, and the cylinder inner wall of every layer of flow-disturbing even distribution device (3,4,5) is provided with through hole, institute
One end of flue gas disturbed flow pipe 6 is stated deeply in the inner wall hole of corresponding each layer flow-disturbing even distribution device, and sealing is fixed by welding,
The other end is fixed together with center fixing device 7 using welding manner.
Further, the flue gas even distribution of the wet desulphurization absorption tower and desulfurization intensifying device are using two sections of shapings, jet tray 1
It is the square plate that the length of side is 1.2-1.4m that outside, which surrounds plate, is highly 0.1-0.35m, jet tray 1 and three layers of flow-disturbing are arranged
Put 2 by reducing to be connected, connected mode is welding.
Further, the jet tray 1 is symmetrical with a diameter of center line both sides in circular section.
Further, the angle of the jet tray 1 and horizontal plane is 45-65 °, and angle can be entered according to air inducing compressing head allowance
Row adjustment.
Further, the transverse pitch of the jet tray 1 is 40-80mm, and distance can be carried out according to air inducing compressing head allowance
Adjustment.
During work, flue gas enters after desulfurizing tower gas approach, by multiple deflectors first by flue gas subregion, the flue gas after subregion
Flue gas even distribution and desulfurization intensifying device are uniformly entered, desulfurization original flue gas enters after device, three layers of flue gas are sequentially passed through first and are disturbed
Even distribution device 2 is flowed, during by flue gas flow-disturbing even distribution device, flue gas can form more fierce turbulent flow, add air-liquid
The contact area of two-phase, improves the relative velocity that air-liquid two is in contact, so as to improve the mass transfer rate of air-liquid two-phase, cigarette
Thinner soot dust granule can be wrapped among drop with easier in gas, improve efficiency of dust collection, meanwhile, in this process
In, due to the barrier effect of flue gas disturbed flow pipe 6, larger soot dust granule is blocked in former flue gas, by eddy flow plate leaf
During piece, the abrasion produced to jet tray 1 is effectively avoided, or even breaks jet tray 1, so as to improve the use longevity of blade
Life.After three layers of flue gas flow-disturbing even distribution device 2, part SO2Removed in advance, larger soot dust granule is blocked down in flue gas
Come, the thinner soot dust granule in part is wrapped to be removed into desulfurization slurry, and then flue gas goes successively to individual layer jet tray 1, due to
Individual layer jet tray 1 is distributed with a diameter of Central Symmetry of disc, and has direction to have a certain degree with flue gas, the direction hair of flue gas
Raw certain change, the loop slurry sprayed is ejected, in this course, because the sectional area of jet tray 1 diminishes,
The flow velocity of flue gas accelerates, and loop slurry produces violent turbulent flow in course of injection, and the mass transfer rate of air-liquid two-phase is obtained
To significantly being lifted, SO2Further it is removed, simultaneously as the violent turbulent flow of air-liquid two-phase, tiny drop group
The larger drop of pin is polymerized to, small flue dust is easier to be wrapped by drop, and flue dust is also removed a part in this course,
SO in flue gas2Content, dustiness are further reduced.In this course, in the case where not increasing spraying layer, realize
Desulfurizing tower loop slurry is further made full use of, and flue gas is left after flue gas even distribution and desulfurization intensifying device, sprayed by desulfurizing tower
The further desulfurization of drenching layer.
It uses three layers of flue gas flow-disturbing even distribution device to the utility model, the turbulent flow for not only making flue gas formation fiercer, increase
The contact area of air-liquid two-phase, also improves the mass transfer rate of air-liquid two-phase, and the turbulent flow of loop slurry is made using jet tray
With further removing SO2, in the case where not increasing spraying layer, realize further making full use of for desulfurizing tower loop slurry.
When wet desulphurization minimum discharge is transformed, when running into sulfur dioxide absorption efficiency and needing raising, and double-column in series is set up not
It is with strong applicability when the allowance of enough economic or draught fan system pressure is little.
The above is only better embodiment of the present utility model, therefore all according to described in the utility model patent claim
The equivalent change or modification done of construction, feature and principle, be included in the utility model patent claim.
Claims (5)
1. the flue gas even distribution and desulfurization intensifying device of wet desulphurization absorption tower, including one layer of jet tray (1) and three layers of flow-disturbing it is uniform
Device (2) two parts, three layers of flow-disturbing even distribution device (2) includes the first flow-disturbing even distribution device (3), the second flow-disturbing even distribution device
(4) and the 3rd flow-disturbing even distribution device (5), every layer of flow-disturbing even distribution device (3,4,5) includes 8 DN32 flue gas disturbed flow pipe (6),
8 flue gas disturbed flow pipes are fixed by center fixing device (7), and the jet tray (1) is rectangular slab, and three layers of flow-disturbing are arranged
(2) are put for cylindrical shape, the cylinder inner wall of every layer of flow-disturbing even distribution device (3,4,5) is provided with through hole, the one of the flue gas disturbed flow pipe (6)
End is deeply in the inner wall hole of corresponding each layer flow-disturbing even distribution device, and sealing is fixed by welding, and the other end is fixed with center
Device (7) is fixed together using welding manner.
2. the flue gas even distribution and desulfurization intensifying device of wet desulphurization absorption tower according to claim 1, it is characterised in that：Institute
The flue gas even distribution and desulfurization intensifying device of wet desulphurization absorption tower are stated using two sections of shapings, the outside plate that surrounds of jet tray (1) is side
A length of 1.2-1.4m square plate, is highly 0.1-0.35m, and jet tray (1) and three layers of flow-disturbing even distribution device (2) pass through reducing
It is connected, connected mode is welding.
3. the flue gas even distribution and desulfurization intensifying device of wet desulphurization absorption tower according to claim 1, it is characterised in that：Institute
State jet tray (1) symmetrical with a diameter of center line both sides in circular section.
4. the flue gas even distribution and desulfurization intensifying device of wet desulphurization absorption tower according to claim 1, it is characterised in that：Institute
The angle for stating jet tray (1) and horizontal plane is 45-65 °, and angle can be adjusted according to air inducing compressing head allowance.
5. the flue gas even distribution and desulfurization intensifying device of wet desulphurization absorption tower according to claim 1, it is characterised in that：Institute
The transverse pitch for stating jet tray (1) is 40-80mm, and distance can be adjusted according to air inducing compressing head allowance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620553791.5U CN206315669U (en) | 2016-06-06 | 2016-06-06 | The flue gas even distribution and desulfurization intensifying device of wet desulphurization absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620553791.5U CN206315669U (en) | 2016-06-06 | 2016-06-06 | The flue gas even distribution and desulfurization intensifying device of wet desulphurization absorption tower |
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| Publication Number | Publication Date |
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| CN206315669U true CN206315669U (en) | 2017-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620553791.5U Expired - Fee Related CN206315669U (en) | 2016-06-06 | 2016-06-06 | The flue gas even distribution and desulfurization intensifying device of wet desulphurization absorption tower |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111888925A (en) * | 2020-08-03 | 2020-11-06 | 北京予知环保科技有限公司 | Dry desulfurization assembly, desulfurization dust removal unit, integrated equipment and system |
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2016
- 2016-06-06 CN CN201620553791.5U patent/CN206315669U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111888925A (en) * | 2020-08-03 | 2020-11-06 | 北京予知环保科技有限公司 | Dry desulfurization assembly, desulfurization dust removal unit, integrated equipment and system |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170711 Termination date: 20190606 |
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| CF01 | Termination of patent right due to non-payment of annual fee |