CN106039973A - Annular air inlet device of desulfurization absorption tower - Google Patents
Annular air inlet device of desulfurization absorption tower Download PDFInfo
- Publication number
- CN106039973A CN106039973A CN201610516381.8A CN201610516381A CN106039973A CN 106039973 A CN106039973 A CN 106039973A CN 201610516381 A CN201610516381 A CN 201610516381A CN 106039973 A CN106039973 A CN 106039973A
- Authority
- CN
- China
- Prior art keywords
- air distribution
- absorption tower
- desulfuration absorbing
- absorbing tower
- flue gas
- Prior art date
- 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.)
- Pending
Links
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 39
- 238000010521 absorption reaction Methods 0.000 title abstract description 37
- 230000023556 desulfurization Effects 0.000 title abstract description 8
- 239000004744 fabric Substances 0.000 claims description 15
- 230000008859 change Effects 0.000 claims description 6
- 230000001788 irregular Effects 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 39
- 239000003546 flue gas Substances 0.000 abstract description 39
- 239000000779 smoke Substances 0.000 abstract description 12
- 229910052717 sulfur Inorganic materials 0.000 abstract description 6
- 239000011593 sulfur Substances 0.000 abstract description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 11
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 8
- 235000019738 Limestone Nutrition 0.000 description 5
- 239000006028 limestone Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- B01D2251/00—Reactants
- B01D2251/40—Alkaline earth metal or magnesium compounds
- B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/60—Inorganic bases or salts
- B01D2251/604—Hydroxides
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses an annular air inlet device of a desulfurization absorption tower, which is characterized in that a lower air distribution plate (1) and an upper cover plate (2) which are connected with each other are arranged in an elevation area where an inlet flue (4) in the desulfurization absorption tower (7) is located, the lower air distribution plate and the upper cover plate are arranged in a horizontal direction for 360 degrees and are connected with the wall of the absorption tower to form an annular air distribution space (5), air distribution holes (3) are formed in the lower air distribution plate, the inlet flue is communicated with the annular air distribution space, sulfur-containing flue gas passes through the annular air distribution space from the inlet flue and enters the absorption tower from the air distribution holes, and a guide plate can be arranged at the air distribution holes. The invention can lead the smoke to enter the absorption tower from the direction of 360 degrees, lead the smoke to enter the absorption tower along a certain angle for further uniform flow field and lead the smoke to be gathered to the middle part of the absorption tower far away from the tower wall. The absorption tower solves the problem of uneven distribution of the flue gas of the single-side flue gas inlet absorption tower, reduces the phenomenon of flue gas flow escaping along the side wall of the absorption tower, and improves the flue gas desulfurization efficiency of the system.
Description
Technical field
The present invention relates to desulfuration absorbing tower interior arrangement, be specifically related to a kind of desulfuration absorbing tower ring type air inlet device, belong to
Industry environmental protection field, is particularly suited for the fume desulfurating absorption tower in thermal power plant.
Background technology
Along with the continuous deterioration of China's air quality, Environmental protection requires increasingly stricter, puts into effect strict work
Industry gas discharge standard suppresses air quality to deteriorate.Especially 2015, China put into effect most stringent of thermal power plant cigarette in history
Gas discharge standard.The major pollutants that coal steam-electric plant smoke discharge is proposed to control by country are sulfur dioxide, dust and nitrogen oxides,
Wherein the removing to sulfur dioxide relies primarily on desulfuration absorbing tower and completes.The coal steam-electric plant smoke processing system of China is most
Using Limestone-gypsum Wet Flue Gas Desulfurization Process technology, the air quality of country is improved by a kind of new and effective wet desulphurization tower internals
The biggest meaning is had with saving energy resource consumption.
Limestone-gypsum Wet Flue Gas Desulfurization Process technology is (anti-by spraying lime stone slurry in desulfuration absorbing tower from top to bottom
Answer liquid), after being fully contacted with flue gas (sulfurous gas) from bottom to top, absorb the gases such as sulfur dioxide in flue gas.
The sulfur-containing smoke gas entrance of existing desulfuration absorbing tower is usually one, and flue gas is distributed not behind entrance absorption tower, side
Uniformly, and in absorption tower lime stone slurry spray be uniform, thus cause flue gas compact district there is no enough limestone
Serosity absorbs the sulfur dioxide in flue gas, and the lime stone slurry that flue gas rarefaction is sprayed is too much, reduces desulfuration efficiency.
Additionally, due to the superposition that absorption tower lime stone slurry spraying layer is by nozzle coverage rate, generally provide the spray of 200%
Drench coverage rate, but nozzle for can only provide in theory near the outmost turns of absorption tower wall 100% spray coverage rate, for
The resistance of flue gas is less, causes flue gas more to be escaped along absorption tower wall, causes flue gas short circuit, reduces desulfuration efficiency.
Therefore need now a kind of can allowing enter the smoke distribution on absorption tower more uniformly, and effectively prevent flue gas along inhaling
Receive the new air inlet device that tower wall is escaped.
Summary of the invention
The present invention makees the deficiency for above-mentioned existence, it is provided that a kind of ring type air inlet device, can not change absorption tower
On the premise of external structure and floor space, make sulfur-containing smoke gas from all-round entrance absorption tower, 360 degree of directions, solve flue gas and absorbing
Problem pockety in tower, further, it is also possible to make flue gas draw close to central area after entering absorption tower, alleviates flue gas along inhaling
Receive the problem that tower wall is escaped.
The adopted technical solution is that:
Internal at desulfuration absorbing tower (7), gas approach (4) absolute altitude region arranges downside air distribution plate (1) and upper side cover (2), under
Side air distribution plate (1) and upper side cover (2) interconnect, along 360 degree of all-round layouts of desulfuration absorbing tower (7) horizontal direction, upper side cover
Plate (2) is all connected with desulfuration absorbing tower (7) tower wall with downside air distribution plate (1), thus constitutes annular cloth wind space (5), entrance cigarette
Road (4) passes through absorbing tower wall, is connected with annular cloth wind space (5).
Upper side cover (2) is centroclinal not perforate loop configuration, and downside air distribution plate (1) is the ring tilted to surrounding
Shape structure, has wind distributing hole (3) above downside air distribution plate (1), wind distributing hole (3) can according to distance gas approach (4) distance,
Flue gas pressures, flow field etc. are set to different sizes, and wind distributing hole (3) can be the geometry such as rectangle or circle.Wind distributing hole (3)
Edge can arrange deflector (6), makes flue gas be angled into desulfuration absorbing tower (7) after passing through wind distributing hole (3) internal.
The vertical direction cross sectional shape of annular cloth wind space (5) is preferably triangle, it is also possible to according to downside air distribution plate (1)
Change with upper side cover (2) shape and be set to semicircle, half arc or irregular polygon.
The positive effect of the present invention is:
The flue gas wind distributing hole (3) that 360 degree are arranged from downside air distribution plate (1) enters absorption tower, and flue gas enters desulfuration absorbing tower (7)
Rear flow field is more uniform, and flue gas is angled into absorption tower by after deflector (6) guiding when by wind distributing hole (3)
(7), multiple wind distributing holes (3) baffle upper plate (6) is worked in coordination, and makes flue gas enter absorption tower (7) and produces eddy flow (see figure 3) afterwards, enters
One step improves flow field condition.
Additionally, after the wind distributing hole (3) that flue gas is from downside air distribution plate (1) passes through, more draw close to central area, absorption tower,
Make less smoke distribution near the wall of absorption tower, can effectively alleviate the problem that flue gas is escaped along absorption tower wall.
Accompanying drawing explanation
By the detailed description that non-limiting example is made made with reference to the following drawings of reading, other of the present invention
Feature, purpose and advantage will become more apparent upon.
Fig. 1 is the axonometric chart of the present invention.
Fig. 2 is the vertical cross section of the present invention.
Fig. 3 is the horizontal sectional drawing of the present invention.
Labelling in accompanying drawing is as follows:
1. air distribution plate on the downside of, 2. upper side cover, 3. wind distributing hole, 4. gas approach, 5. annular cloth wind space, 6. deflector, 7. de-
Sulfur absorption tower, 8. exhaust pass.
Detailed description of the invention
In conjunction with Figure of description, describe the detailed description of the invention of the present invention in detail, it should be noted that illustrated in the accompanying drawings
Parts be not drawn necessarily to scale.Present invention omits the description to known assemblies and treatment technology and process so that avoid need not
Strategic point limits.
It is the axonometric chart of the present invention with reference to Fig. 1 and Fig. 2, Fig. 1.Internal at desulfuration absorbing tower (7), gas approach (4) place
Absolute altitude region, the downside air distribution plate (1) that is circular layout and upper side cover (2) are set, upper side cover (2) be positioned on the downside of air distribution plate
(1) top, downside air distribution plate (1) interconnects with upper side cover (2), and along desulfuration absorbing tower (7) inwall 360 degree annular cloth
Putting, upper side cover (2) is all connected with desulfuration absorbing tower (7) tower wall with downside air distribution plate (1), thus constitutes annular cloth wind space
(5), gas approach (4) is connected with annular cloth wind space (5).Wind distributing hole (3) on downside air distribution plate (1) is according to place distance
The condition setting such as the distance of gas approach (4), flue gas pressures, flow field are different sizes, wind distributing hole (3) position in theory
Gas approach (4) the nearlyest perforate is the biggest, the lowest perforate of flue gas pressures is the biggest for distance, condition about severe perforate in flow field is the biggest, to protect
Card flue gas enters desulfuration absorbing tower (7) by each wind distributing hole (3) uniformly, and wind distributing hole (3) can be the geometry such as rectangle, circle
Shape.
In order to better illustrate the operation principle of the present invention, Fig. 2 is the vertical cross section of the present invention.Annular cloth wind space
(5) cross sectional shape in vertical direction is preferably triangle, and these three sides of a triangle are downside air distribution plate (1), upper side cover
And absorption tower inwall (2).When its shape of change of downside air distribution plate (1) and upper side cover (2), annular cloth wind space (5)
Orthogonal cross-sectional shape can also be other geometries such as semicircle, half arc, irregular polygon.
In order to better illustrate the operation principle of the present invention, Fig. 3 is the horizontal sectional drawing of the present invention.The limit of wind distributing hole (3)
Edge arranges deflector (6), makes to enter desulfuration absorbing tower (7), the value of angle a by the flue gas a at a certain angle of wind distributing hole (3)
Scope is at 15 degree to 60 degree, and multiple wind distributing holes cooperate so that flue gas produces eddy flow after entering absorption tower.Receive wind distributing hole limit
Deflector (6) effect on edge, makes flue gas be angled into absorption tower.
The work process of the present invention is: sulfur-containing smoke gas enters annular cloth wind from gas approach (4) with the flow velocity of 12 ± 4m/s
Space (5), and by the upper 360 degree of wind distributing holes being circular layout (3) of downside air distribution plate (1), in the flue gas mistake by wind distributing hole (3)
Cheng Zhong, by the guide functions of deflector (6), uniformly enters desulfuration absorbing tower (7), at a certain angle by multiple wind distributing holes
(3) flue gas produces eddy flow after entering absorption tower, and gathers in the middle part of absorption tower, sends out with the desulfurizing agent fallen from top, absorption tower
Raw reaction, in flue gas, sulfur-containing compound is desulfurized agent absorption.
The desulfuration absorbing tower ring type air inlet device using the present invention to provide, can be obviously improved tradition single admission desulfurization and inhale
Gather in the middle part of absorption tower after the problem that in receipts tower, smoke distribution is uneven, and flue gas entrance absorption tower, alleviate flue gas along inhaling
Receive the phenomenon that tower side wall is escaped, improve the smoke desulfurization efficiency of desulphurization system.
Although being described in detail about example embodiment and advantage thereof, it should be understood that without departing from the present invention spirit and
In the case of protection domain defined in the appended claims, these embodiments can be carried out various change, substitutions and modifications.Right
In other examples, those of ordinary skill in the art it should be readily appreciated that while keeping in scope, technique
The order of step can change.
Additionally, the range of application of the present invention is not limited to the technique of specific embodiment described in description, mechanism, system
Make, material composition, means, method and step.From the disclosure, will be easily as those of ordinary skill in the art
Ground understands, for the technique having existed at present or will having developed later, mechanism, manufacture, material composition, means, method or
Step, wherein they perform the knot that the function that is substantially the same of corresponding embodiment or acquisition with present invention description are substantially the same
Really, they can be applied according to the present invention.Therefore, claims of the present invention are intended to these technique, mechanism, system
Make, material composition, means, method or step are included in its protection domain.
Claims (6)
1. a desulfuration absorbing tower ring type air inlet device, it is characterised in that internal at desulfuration absorbing tower (7), desulfuration absorbing tower enters
The absolute altitude region at mouth flue (4) place, arranges downside air distribution plate (1) and upper side cover (2)；Upper side cover (2) is positioned at downside cloth
Aerofoil (1) top, downside air distribution plate (1) and upper side cover (2) interconnect, and along desulfuration absorbing tower (7) horizontal direction 360 degree
Being circular layout, upper side cover (2) is all connected with desulfuration absorbing tower (7) tower wall with downside air distribution plate (1), thus constitutes annular cloth wind
Space (5)；Desulfuration absorbing tower gas approach (4) is connected with annular cloth wind space (5).
Desulfuration absorbing tower ring type air inlet device the most according to claim 1, it is characterised in that upper side cover (2) be in
The not perforate loop configuration that the heart tilts, downside air distribution plate (1) is the loop configuration tilted to surrounding, and downside air distribution plate (1) is above
Having wind distributing hole (3), wind distributing hole (3) could be arranged to different sizes.
Desulfuration absorbing tower ring type air inlet device the most according to claim 2, it is characterised in that wind distributing hole (3) can be square
Shape or circle.
Desulfuration absorbing tower ring type air inlet device the most according to claim 2, it is characterised in that the edge of wind distributing hole (3) can
To arrange deflector (6).
Desulfuration absorbing tower ring type air inlet device the most according to claim 1, it is characterised in that annular cloth wind space (5)
Vertical direction cross sectional shape is triangle.
Desulfuration absorbing tower ring type air inlet device the most according to claim 1, it is characterised in that annular cloth wind space (5)
Vertical direction cross sectional shape, can be configured according to the change of downside air distribution plate (1) and upper side cover (2) shape, may be configured as
Semicircle, half arc or irregular polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610516381.8A CN106039973A (en) | 2016-07-04 | 2016-07-04 | Annular air inlet device of desulfurization absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610516381.8A CN106039973A (en) | 2016-07-04 | 2016-07-04 | Annular air inlet device of desulfurization absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106039973A true CN106039973A (en) | 2016-10-26 |
Family
ID=57200749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610516381.8A Pending CN106039973A (en) | 2016-07-04 | 2016-07-04 | Annular air inlet device of desulfurization absorption tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106039973A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008259926A (en) * | 2007-04-10 | 2008-10-30 | Babcock Hitachi Kk | Wet-type flue gas desulfurization apparatus |
| CN102824817A (en) * | 2012-07-19 | 2012-12-19 | 天津大学 | Circulating feeding distributer with no guide plate |
| CN103480268A (en) * | 2013-09-27 | 2014-01-01 | 中国石油大学(北京) | Semi-dry circulating cyclone bed desulfurizing tower |
| CN103816775A (en) * | 2014-02-24 | 2014-05-28 | 重庆大学 | Maintenance-free semidry flue gas desulphurization absorbing tower |
| CN104941437A (en) * | 2015-07-01 | 2015-09-30 | 江苏揽山环境科技有限公司 | Spraying desulfurizing tower with front-mounted atomizing section |
| CN204816193U (en) * | 2015-07-13 | 2015-12-02 | 大唐环境产业集团股份有限公司 | Flue gas guiding device on desulfurization absorption tower |
| CN205235745U (en) * | 2016-01-04 | 2016-05-18 | 田鹏程 | Gas -liquid secondary equipartition device, gas -liquid distribution unit and desulfurization absorption tower |
| CN205988670U (en) * | 2016-07-04 | 2017-03-01 | 钱诚 | Annular air inlet device of desulfurization absorption tower |
-
2016
- 2016-07-04 CN CN201610516381.8A patent/CN106039973A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008259926A (en) * | 2007-04-10 | 2008-10-30 | Babcock Hitachi Kk | Wet-type flue gas desulfurization apparatus |
| CN102824817A (en) * | 2012-07-19 | 2012-12-19 | 天津大学 | Circulating feeding distributer with no guide plate |
| CN103480268A (en) * | 2013-09-27 | 2014-01-01 | 中国石油大学(北京) | Semi-dry circulating cyclone bed desulfurizing tower |
| CN103816775A (en) * | 2014-02-24 | 2014-05-28 | 重庆大学 | Maintenance-free semidry flue gas desulphurization absorbing tower |
| CN104941437A (en) * | 2015-07-01 | 2015-09-30 | 江苏揽山环境科技有限公司 | Spraying desulfurizing tower with front-mounted atomizing section |
| CN204816193U (en) * | 2015-07-13 | 2015-12-02 | 大唐环境产业集团股份有限公司 | Flue gas guiding device on desulfurization absorption tower |
| CN205235745U (en) * | 2016-01-04 | 2016-05-18 | 田鹏程 | Gas -liquid secondary equipartition device, gas -liquid distribution unit and desulfurization absorption tower |
| CN205988670U (en) * | 2016-07-04 | 2017-03-01 | 钱诚 | Annular air inlet device of desulfurization absorption tower |
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