CN106334433A - Desulfuration absorption tower and tray device for desulfuration absorption tower - Google Patents
Desulfuration absorption tower and tray device for desulfuration absorption tower Download PDFInfo
- Publication number
- CN106334433A CN106334433A CN201610814058.9A CN201610814058A CN106334433A CN 106334433 A CN106334433 A CN 106334433A CN 201610814058 A CN201610814058 A CN 201610814058A CN 106334433 A CN106334433 A CN 106334433A
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- CN
- China
- Prior art keywords
- desulfuration absorbing
- absorbing tower
- hole
- porous plate
- pallet
- 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.)
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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
-
- 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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- 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 provides a tray device for a desulfuration absorption tower, which comprises at least one perforated plate, wherein the perforated plates are provided with a plurality of through holes; each through hole is formed by intersecting at least three slotted holes; and a fillet is arranged at one end of each slotted hole. The tray device is applicable to an operating environment of the high load and large slurry flow desulfuration absorption tower, and solves the problem that a tray of the desulfuration absorption tower cannot work stably under a high load. The invention provides a desulfuration absorption tower applying the tray device at the same time.
Description
Technical field
The invention belongs to prevention and control of air pollution field is and in particular to a kind of desulfuration absorbing tower pallet apparatus and desulfurization absorb
Tower.
Background technology
" coal electricity energy-saving and emission-reduction upgrading and transformation action plan (2014-2020) " requires eastern region (Liaoning, Beijing, sky
Tianjin, Hebei, Shandong, Shanghai, Jiangsu, Zhejiang, Fujian, Guangdong, Hainan etc. 11 provinces and cities) newly-built Thermal generation unit atmosphere pollution
Concentration of emission basically reach gas turbine group emission limit (i.e. under the conditions of benchmark oxygen content 6%, flue dust, sulfur dioxide, nitrogen oxygen
Compound concentration of emission is respectively no higher than 10,35,50 milligrams/cubic metre), middle part (Heilungkiang, Jilin, Shanxi, Anhui, lake
North, Hunan, Henan, Jiangxi etc. 8 province), in principle close to or up gas turbine group emission limit, encouragement is westernly for new-built unit
Area's new-built unit is close to or up gas turbine group emission limit.To the year two thousand twenty, 300,000 kilowatts of eastern region active service and above public affairs
With Thermal generation unit, 100,000 kilowatts and above provide Thermal generation unit and other conditional Thermal generation unit for oneself, change
Make rear Air Pollutant Emission concentration and basically reach gas turbine group emission limit.In view of Coal Combustion in China quality, to all of combustion
The flue gas that coal-fired plant produces is required for carrying out desulfurization process, and makes the sulfur dioxide in flue gas content of discharge meet above-mentioned correlative link
Guaranteed request.
Wet Flue Gas Desulfurization Technique is China's most widely used flue gas desulfurization technique at present.For adapting to the cigarette of China's increasingly stringent
Gas emission standards for sulfur dioxide, has carried out for wet desulfurization system and multinomial has proposed effect measure.At present generally in desulfuration absorbing tower
Installing perforate pallet, pallet provides the hybrid reaction region of desulfurization slurry and smoke contacts in desulfuration absorbing tower, that is, holds liquid layer,
Flue gas be upward through pallet perforate thus with spraying layer spray slurry liquid contacts, serosity after being fully contacted reaction with flue gas, and
After removing the sulfur dioxide in flue gas, it is passed down through pallet perforate, flow into the slurry pool being located at desulfuration absorbing tower bottom.Hold in the palm simultaneously
Disk can also carry out rectification to flue gas, improve the uniformity of smoke distribution, hold liquid layer due to can be formed on pallet, extend gas
The liquid haptoreaction time, desulfuration efficiency can be effectively increased.As shown in figure 4, the pattern of the perforate 9 of existing pallet 8 is basic
It is circular hole, although the pallet of circular hole form is easy to process, it is quick to manufacture, pass through engineering actual verification, in high load capacity operating mode
Under, because exhaust gas volumn significantly increases, this pallet in use, when a large amount of serosity flow through pallet, by bottom flue gas
Flowing " lifting " effect, leads to serosity to be unable to regular descent, the serosity decline of circular hole pallet is heavily suppressed, occurs serious
General liquid phenomenon.Not only affect desulphurization system service behaviour, lead to desulfuration efficiency to decline, tray support beam load when serious, will be led to
Excessive, affect desulphurization system normal work, or even impact environmental protection facility safety.
Accordingly, it would be desirable to improve to existing pallet.
Content of the invention
The deficiency existing for existing desulfuration absorbing tower circular hole pallet, it is an object of the invention to provide a kind of desulfuration absorbing tower
With pallet apparatus and the desulfuration absorbing tower of applying this pallet apparatus, high load capacity can be applied to, the desulfurization of big slurry flow absorbs
The running environment of tower, solves the problems, such as that the pallet of desulfuration absorbing tower under high load capacity is unable to steady operation.
For reaching above-mentioned purpose, the concrete technical scheme that the present invention takes is:
A kind of desulfuration absorbing tower pallet apparatus, comprising:
At least one porous plate, described porous plate has multiple through holes；Described through hole is by least three one end length with rounded corners
Hole crosses and forms.
Further, described through hole is selected between 0.25～0.7 in the percent opening on porous plate.
Further, the ratio between the width of described elongated hole and length is selected between 1:1～1:2.5.
Further, the material of described porous plate is steel alloy or nonmetallic wear-resistant material.
Further, the elongated hole in each through hole is uniform along through hole center.
Further, the length of the elongated hole in each through hole is consistent, and width is consistent.
A kind of desulfuration absorbing tower, including be sequentially arranged along flue gas flow path: a smoke inlet and at least one spraying layer, described
It is provided with aforesaid desulfuration absorbing tower pallet apparatus between smoke inlet and spraying layer and/or between each spraying layer.
Further, also include being arranged at the supporting construction below tray body along the inwall of desulfuration absorbing tower.
Further, the quantity of described porous plate is more than 2, and the distance between adjacent porous plate is 0.3～3.5
Rice.
By technique scheme, flue gas flows into from the gas approach of desulfuration absorbing tower, successively upwards through pallet apparatus, spray
Drench layer, demister, finally flow out from desulfuration absorbing tower exhaust pass.In desulfurizing tower tower, desulfurization slurry sprays through spraying layer, flows through
Pallet apparatus fall into slurry pool.By using the through hole being different from traditional circular hole, can remaining to when a large amount of serosity flow through pallet
Preferable serosity is kept to decline effect, it is to avoid general liquid situation to occur it can be ensured that operation ring in high load capacity, big slurry flow
Border, desulfuration absorbing tower keeps stable operation.
Brief description
Fig. 1 is the structural representation of desulfuration absorbing tower in one embodiment of the invention.
Fig. 2 is the structural representation of porous plate in desulfuration absorbing tower pallet apparatus in one embodiment of the invention.
Fig. 3 is the schematic shapes of the through hole opening up on porous plate in one embodiment of the invention.
Fig. 4 is the structural representation of the pallet in traditional desulfuration absorbing tower in background technology.
Fig. 5 is the structural representation of desulfuration absorbing tower in another embodiment of the present invention.
Fig. 6 is the schematic shapes of the through hole opening up on porous plate in further embodiment of this invention.
Fig. 7 is the schematic shapes of the through hole opening up on porous plate in yet another embodiment of the invention.
Description of reference numerals: 1- smoke inlet；2- slurry pool；3- pallet apparatus；31- pallet apparatus；4- spraying layer；5- removes
Day with fog；6- exhanst gas outlet；7- through hole；8- pallet；9- perforate.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Whole description.
As described in Figure 1, in one embodiment, provide a kind of desulfuration absorbing tower, including be sequentially arranged along flue gas flow path: cigarette
Gas entrance 1, pallet apparatus 3, spraying layer 4, demister 5 and exhanst gas outlet 6, in desulfuration absorbing tower, bottom is slurry pool 2.Its
In, the supporting construction that pallet apparatus 3 include a porous plate and support porous plate, this supporting construction refers to traditional circular hole pallet
Lower support beam.
This porous plate has multiple through holes；As shown in Figures 3 and 4, through hole 7 crossed by three one end elongated hole with rounded corners and
Become.In figure, uniformly and length is all consistent with width along through hole center for the elongated hole in each through hole.In other embodiments it is also possible to
Using shape as shown in FIG. 6 and 7 that is to say, that elongated hole need not be uniform along through hole center, can be as shown in fig. 7, two be long
Hole coaxial, vertical with the axis of another one elongated hole；The quantity of elongated hole is also not necessarily limited to three, can be as shown in fig. 6, by four
Elongated hole constitutes cross hole shape.In the not shown embodiment of other, the width of three elongated holes and length can also exist
Some differences are it is not necessary to consistent size.In a word, the shape of through hole can set according to actual operating mode and choose, the foundation of setting be to
Few three one end elongated hole with rounded corners crosses and forms.
In addition, through hole is selected between 0.25～0.7 in the percent opening on porous plate.Within this range, can effectively keep
Serosity declines effect, it is to avoid the general liquid of pallet.
As shown in figure 3, the ratio between the width b of elongated hole and length a is selected between 1:1～1:2.5.This ratio is same
Shape of through holes in shape of through holes be applied to Fig. 6 and Fig. 7, and other not shown embodiments equally applicable.In this model
In enclosing, serosity can be effectively kept to decline effect, it is to avoid the general liquid of pallet.
The material of porous plate is steel alloy or nonmetallic wear-resistant material.Material is steel alloy, for example, rustless steel, in processing
During through hole, punching or Drilling operation can be passed through.Material is nonmetallic wear-resistant material, such as glass fiber reinforced plastics composite material, and through hole can
Drilling operation after being integrally formed or process by mould pressing process.
The desulfuration absorbing tower of above-described embodiment description and the pallet apparatus being applied to desulfuration absorbing tower are big close around China
The wet desulfurization system performance that amount uses improves to be needed.General liquid can be reduced, using flat type tray design, can be at utmost
Reduce pallet processing and construction technology difficulty, special shape perforate is taken in pallet perforate, and this perforate mode is in a large amount of slurry stream
When crossing pallet, remain to keep preferable serosity to decline effect, can be simultaneously reached after flue gas flows through pallet, be capable of preferably
Uniform effect, improves the uniformity of spraying layer bottom flue gas in desulfurizing tower, improves the desulfurized effect of desulfurizing tower.Pallet apparatus adopt
Support beam mode is supported.The size of pallet perforate and its arrangement form on pallet can set according to different desulphurization systems
Meter needs are adjusted.
When higher desulfurized effect is proposed to desulphurization system, Double tray arrangement as shown in Figure 5 can be taken, figure
Middle pallet apparatus 31 include two-layer porous plate, and the distance between porous plate is 0.3～3.5 meter.Within this range, can effectively keep
Serosity declines effect, it is to avoid the general liquid of pallet.Enable the invention to meet the demand of more high desulfurization efficiency.Certainly, special at other
In different operating mode, the number of plies of porous plate is also not necessarily limited to two-layer, can also be more than two-layer.In addition, in certain embodiments, arrangement is many
In the desulfuration absorbing tower of layer spraying layer, it is also contemplated that arrange described in foregoing embodiments simultaneously between adjacent spraying layer
Pallet apparatus, adopt in bicirculating desulfuration absorbing tower at some, pallet apparatus can also be according to the concrete knot of desulfuration absorbing tower
Structure determines position and holds liquid layer so as to be formed for what flue gas and serosity were fully contacted reaction；And rectification is carried out to flue gas make cigarette
Gas is uniform, and ensure serosity after reacting with smoke contacts smooth through pallet through hole inflow slurry pool.Can be referred to according to green technology
Mark requires, and flexibly carries out conceptual design.
To sum up, the present invention provide desulfuration absorbing tower pallet apparatus and apply this pallet apparatus desulfuration absorbing tower permissible
Improve the circulation effect in pallet area for the flue gas, reduce the resistance of pallet, improve the functional reliability of desulfurizing tower.Tray number and
The size of pallet perforate, and the number of openings according to desulphurization system need be designed, dissimilar desulfurizing tower cloth can be met
Put needs, improve the suitability of the present invention.
Taking concrete desulfurization project as a example beneficial effects of the present invention are described further below:
Comparative example: the desulfuration absorbing tower in the desulphurization plant of a thermal power plant coal unit, processing flue gas air quantity is 100
Ten thousand stere per hour, configures one layer of traditional circular hole pallet, the description in tray form reference Fig. 4 and background technology, with negative
Lotus increases, and for ensureing desulfuration efficiency, serosity amount needs to increase, and flue gas and serosity will be led to form fierce disturbance in pallet area,
With the increasing of exhaust gas volumn, serosity occurs and declines difficult problem, lead to pallet area resistance to increase sharply, when serious, lead to flue gas system
Resistance is excessive, pallet load-bearing increases excessive impact desulphurization system safety, affects generating set safe operation when serious.
Embodiment 1: the same desulfuration absorbing tower of above-mentioned comparative example description, using the pallet apparatus described as Fig. 2 and Fig. 3,
In the case that serosity amount and flue gas flow synchronously increase, serosity decline in pallet area is barely affected, desulphurization system resistance
Increase total amount is less, and pallet load-bearing incrementss are very little, several negligible, do not affect the safe operation of desulphurization system.
Embodiment 2, the same desulfuration absorbing tower of above-mentioned comparative example description, with reference to Fig. 5, there is in pallet apparatus two-layer porous
Plate, porous plate spacing chooses multiple numerical value between 0.3～3.5 meter, and desulphurization system resistance does not all increase with flue gas flow and sprays
Drenching serosity amount increases and surge phenomenon.
Embodiment 3, by the shape of through holes of the porous plate in embodiment 1 or 2 by the shape that Fig. 2 and Fig. 3 describes be changed to Fig. 6 or
The shape of through holes described in Fig. 7, all can keep preferable serosity to decline effect, ensure the stable operation of desulfuration absorbing tower.
As can be seen here, the pallet apparatus for desulfuration absorbing tower of the present invention are asked for the general liquid avoiding traditional tray to exist
Topic has obvious effect.
Obviously, described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on this
Embodiment in bright, the every other enforcement that those of ordinary skill in the art are obtained under the premise of not making creative work
Example, broadly falls into the scope of protection of the invention.
Claims (9)
1. a kind of desulfuration absorbing tower pallet apparatus are it is characterised in that include:
At least one porous plate, described porous plate has multiple through holes；Described through hole is handed over by least three one end elongated hole with rounded corners
Remittance forms.
2. desulfuration absorbing tower pallet apparatus as claimed in claim 1 are it is characterised in that described through hole opening on porous plate
Porosity is selected between 0.25～0.7.
3. desulfuration absorbing tower pallet apparatus as claimed in claim 1 it is characterised in that the width of described elongated hole and length it
Between ratio be selected between 1:1～1:2.5.
4. desulfuration absorbing tower pallet apparatus as claimed in claim 1 are it is characterised in that the material of described porous plate is alloy
Steel or nonmetallic wear-resistant material.
5. desulfuration absorbing tower pallet apparatus as claimed in claim 1 are it is characterised in that the elongated hole in each through hole is along along through hole
The heart is uniform.
6. desulfuration absorbing tower pallet apparatus as claimed in claim 1 are it is characterised in that the length one of elongated hole in each through hole
Cause, width is consistent.
7. a kind of desulfuration absorbing tower, including be sequentially arranged along flue gas flow path: a smoke inlet and at least one spraying layer, its feature
It is, between described smoke inlet and spraying layer and/or the setting of each spraying layer is just like de- described in any one of claim 1 to 6
Sulfur absorption tower pallet apparatus.
8. desulfuration absorbing tower as claimed in claim 7 is it is characterised in that the quantity of described porous plate is more than 2, adjacent
The distance between porous plate is 0.3～3.5 meter.
9. desulfuration absorbing tower as claimed in claim 7 is it is characterised in that the inwall also including along desulfuration absorbing tower is arranged at support
Supporting construction below disk body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610814058.9A CN106334433A (en) | 2016-09-09 | 2016-09-09 | Desulfuration absorption tower and tray device for desulfuration absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610814058.9A CN106334433A (en) | 2016-09-09 | 2016-09-09 | Desulfuration absorption tower and tray device for desulfuration absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106334433A true CN106334433A (en) | 2017-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610814058.9A Pending CN106334433A (en) | 2016-09-09 | 2016-09-09 | Desulfuration absorption tower and tray device for desulfuration absorption tower |
Country Status (1)
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|---|---|
| CN (1) | CN106334433A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000745A (en) * | 2017-06-06 | 2018-12-14 | 大唐环境产业集团股份有限公司 | It is a kind of for measuring the device and measurement method of wet desulfuration tower slurries spraying intensity |
| CN110368792A (en) * | 2019-08-19 | 2019-10-25 | 北京首钢国际工程技术有限公司 | A kind of double tower Two-way Cycle wet desulphurization device for wearing series-parallel flue |
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| CN201253497Y (en) * | 2008-09-16 | 2009-06-10 | 秦松 | Fixed Valve Tray Plate |
| CN101474535A (en) * | 2008-12-30 | 2009-07-08 | 中电投远达环保工程有限公司 | Rectifying desulphurization system |
| CN202778265U (en) * | 2012-08-09 | 2013-03-13 | 武汉钢铁(集团)公司 | Improved spray absorption tower for wet flue gas desulfurization |
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| CN204865520U (en) * | 2015-07-13 | 2015-12-16 | 大唐环境产业集团股份有限公司 | Effect device is carried in desulfurization |
| CN206198999U (en) * | 2016-09-09 | 2017-05-31 | 大唐环境产业集团股份有限公司 | A kind of desulfuration absorbing tower pallet apparatus and desulfuration absorbing tower |
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2016
- 2016-09-09 CN CN201610814058.9A patent/CN106334433A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201253497Y (en) * | 2008-09-16 | 2009-06-10 | 秦松 | Fixed Valve Tray Plate |
| CN101474535A (en) * | 2008-12-30 | 2009-07-08 | 中电投远达环保工程有限公司 | Rectifying desulphurization system |
| CN202778265U (en) * | 2012-08-09 | 2013-03-13 | 武汉钢铁(集团)公司 | Improved spray absorption tower for wet flue gas desulfurization |
| US8828341B1 (en) * | 2013-07-18 | 2014-09-09 | Alstom Technology Ltd | Sulfite control to reduce mercury re-emission |
| JP2015020169A (en) * | 2013-07-18 | 2015-02-02 | アルストム テクノロジー リミテッドＡＬＳＴＯＭ Ｔｅｃｈｎｏｌｏｇｙ Ｌｔｄ | Wet scrubber nozzle system and method of use for cleaning process gas |
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| CN206198999U (en) * | 2016-09-09 | 2017-05-31 | 大唐环境产业集团股份有限公司 | A kind of desulfuration absorbing tower pallet apparatus and desulfuration absorbing tower |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109000745A (en) * | 2017-06-06 | 2018-12-14 | 大唐环境产业集团股份有限公司 | It is a kind of for measuring the device and measurement method of wet desulfuration tower slurries spraying intensity |
| CN109000745B (en) * | 2017-06-06 | 2023-11-24 | 大唐环境产业集团股份有限公司 | Device and method for measuring slurry spraying strength of wet desulfurization tower |
| CN110368792A (en) * | 2019-08-19 | 2019-10-25 | 北京首钢国际工程技术有限公司 | A kind of double tower Two-way Cycle wet desulphurization device for wearing series-parallel flue |
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Application publication date: 20170118 |