CN101855004B - Spray column for fuel gas treatment and gas collecting collar used in the spray column - Google Patents
Spray column for fuel gas treatment and gas collecting collar used in the spray column Download PDFInfo
- Publication number
- CN101855004B CN101855004B CN2008801141777A CN200880114177A CN101855004B CN 101855004 B CN101855004 B CN 101855004B CN 2008801141777 A CN2008801141777 A CN 2008801141777A CN 200880114177 A CN200880114177 A CN 200880114177A CN 101855004 B CN101855004 B CN 101855004B
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- plate
- spray column
- gas gathering
- gathering ring
- sidewall
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—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 by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/12—Methods and means for introducing reactants
- B01D2259/126—Semi-solid reactants, e.g. slurries
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Abstract
A gas collecting collar (4, 5, 6, 7) used in a spray column for fuel gas treatment and a spray column comprising said gas collecting collar (4, 5, 6, 7). The gas collecting collar (4, 5, 6, 7) comprise a first plate (42). An end of the first plate (42) is connected to the sidewall of the spray column, and the first plate (42) is aslope extended upward from the sidewall of the spray column towards the center of the spray column.
Description
Technical field
The invention belongs to environmental technology field, relate to the spray column that is used for a kind of thermal power plant wet process of FGD spray column or other field, and the gas gathering ring that is used for spray column.
Background technology
The wet process of FGD technology plays an important role in China air contaminant treatment field at present, and the spray void tower is the main flow tower of wet desulfurizing process; Its internals is few, so less scaling, flue gas contacts with absorption liquid is reverse; More help absorption, but, belong to the spray weak area because spray column is intensive not as other zone near tower wall liquid film overlapping to sulfur dioxide; Also claim the spray dilute-phase zone; Flue gas flow rate is higher here, spray liquid to the sulfur dioxide trapping ability a little less than, thereby influenced the desulfuration efficiency of spray column.
The U.S. Pat 6,550 that on April 22nd, 2003 was authorized people such as Brown, 751B1 has disclosed a kind of gas-liquid contactor that has the liquid apparatus for redistributing.In the technical scheme of this patent, the tower wall is provided with arrangement for deflecting so that liquid departs from the tower wall, contacts with gas in the admission passage.It is not unique, but has its counterpart, also disclosed a kind of spray column with absorber paste redistribution device among the disclosed one Chinese patent application CN1785482A on June 14th, 2006.Wherein absorber paste redistribution device is provided with in the medium dip of spray Tata wall, thereby can collect wall stream.
Can find out that above-mentioned two pieces of documents have all taked to collect the technical scheme of slurry stream, but this scheme absorbs inadequate problem in the time of can not solving flue gas through the spray dilute-phase zone.
Summary of the invention
Technical problem to be solved by this invention is further to improve the performance of spray column, and its desulfuration efficiency is further promoted, and provides a kind of flue gas that can make to amass wealth by heavy taxation the gas gathering ring of flue gas in the diversion tower to the spray compact district.In addition, another supplementary technology problem of the present invention's solution is water conservancy diversion and makes full use of the absorption slurries.
On the one hand; Technical scheme of the present invention provides a kind of gas gathering ring that is used for the spray column of flue gas processing; It is characterized in that; This gas gathering ring comprises: first plate, said first plate is connected on the sidewall of said spray column at the one of which end, and said first plate extends upward towards the centroclinal of spray column from the sidewall of said spray column.
Preferably, this gas gathering ring also comprises: second plate, said second plate is being connected on the sidewall of said spray column above said first plate, and said second plate centroclinal to extending below from the sidewall of said spray column towards spray column.
On the other hand, the present invention also provides a kind of spray column that flue gas is handled that is used for that comprises above-mentioned gas gathering ring.This spray column preferably is provided with gas gathering ring in each layer spraying layer bottom, and flue gas no longer climbs along the tower wall like this, but is guided to tower center spray close quarters through gas gathering ring, thereby reduces flue gas escape raising desulfuration efficiency.Preferably, gas gathering ring is to be spliced into the ridge shape by two boards, and the tip of ridge refers to that in the tower, root is fixed in Ta Bi, 60 ° of ridge drift angles, and the overlay area of this gas gathering ring preferably equals outermost nozzle and leaves apart from the tower span.For the different size spray column, this distance is also different, is generally 400-800mm.The gas gathering ring materials used can be carbon steel and adds the anti-resistant materials that wash away such as glass resin flake, alloy, fiberglass.
The technique effect that the present invention can realize is: flue gas is guided to the tower middle part through gas gathering ring, makes the inswept spray of flue gas compact district, reduces flue gas and escapes, and improves desulfuration efficiency.This gas gathering ring makes that also absorbing slurries flows into stock tank along the tower wall no longer in vain, but drop drenches to the uptake zone again, has made full use of the absorption slurries.In addition, this kind ridge type gas gathering ring has low pressure loss, and is less scaling, is prone to the cleaning advantage, but also has the function of reinforcing tower body.
Description of drawings
Followingly combine instance to explain according to a preferred embodiment of the invention with reference to accompanying drawing, wherein:
Fig. 1 is the overall structural arrangement sketch map that is used for the spray column of flue gas processing.
Fig. 2 is an A portion enlarged diagram among Fig. 1.
Fig. 3 is the schematic three dimensional views that is used for the gas gathering ring structure shown in Figure 2 of spray column.
Fig. 4 is a kind of deformation program attached to the cross sectional shape of the gas gathering ring on the spray column sidewall.
Fig. 5 is the another kind of deformation program attached to the cross sectional shape of the gas gathering ring on the spray column sidewall.
Fig. 6 is another deformation program attached to the cross sectional shape of the gas gathering ring on the spray column sidewall.
Fig. 7 is another deformation program attached to the cross sectional shape of the gas gathering ring on the spray column sidewall.
Fig. 8 is another deformation program attached to the cross sectional shape of the gas gathering ring on the spray column sidewall.
Fig. 9 is another deformation program attached to the cross sectional shape of the gas gathering ring on the spray column sidewall.
Figure 10 is another deformation program attached to the cross sectional shape of the gas gathering ring on the spray column sidewall.
Figure 11 is another deformation program attached to the cross sectional shape of the gas gathering ring on the spray column sidewall.
The corresponding relation of the parts that Reference numeral and its referred among the figure is:
Among the figure: 1, spray column inlet, 2, the slurries pond, 3, the spray column outlet, 4, the ground floor gas gathering ring; 41, gas gathering ring upper plate (being also referred to as second plate), 42, gas gathering ring lower plate (being also referred to as first plate), 5, second layer gas gathering ring, the 6, the 3rd strata compression ring; 7, the 4th strata compression ring, 8, the ground floor spraying layer, 9, second layer spraying layer; 10, the 3rd layer of spraying layer, 11, the 4th layers of spraying layer, 12, the demister layer.
The specific embodiment
In conjunction with embodiment the present invention is elaborated as follows.
At first combine Fig. 1 that the ruuning situation of the spray column that adopts the preferred embodiments of the present invention is described.Be in operation, flue gas gets into spray column through spray column inlet 1, upwards climbs and passes through ground floor gas gathering ring 4 successively; Ground floor spraying layer 8, second layer gas gathering ring 5, second layer spraying layer 9; 6, the three layers of spraying layer 10, the four strata compression ring 7 of the 3rd strata compression ring; The 4th layer of spraying layer 11, demister layer 12 flows out from spray column outlet 3.One of ordinary skill in the art will appreciate that, can change arbitrarily according to the quantity of different situations spraying layer and corresponding gas gathering ring, have two-layer, three layers or exist more than four layers situation, four layers of spraying layers layout are just arranged here for example.As previously mentioned, general conventional spray column is because the few and less scaling characteristics of its tower inner member become main flow tower in the wet desulphurization technology, but it has its technical disadvantages again.The liquid film coverage rate at spray column middle part is very high, and the multilayer liquid film replaces each other, and flue gas is difficult to escape; Slurries washing flue gas is very capable; Yet because the liquid film that the restriction of tower wall overlaps with it never again exists, in this liquid film zone, form the spray dilute-phase zone near this circle liquid film of tower wall, this regional internal resistance is little; Flue gas is easier to from escape here, thereby has reduced desulfuration efficiency.In order to solve such problem; The technical scheme of the preferred embodiments of the present invention is that ground floor gas gathering ring 4, second layer gas gathering ring 5, the 3rd strata compression ring 6, the 4th strata compression ring 7 are set respectively below ground floor spraying layer 8, second layer spraying layer 9, the 3rd layer of spraying layer 10, the 4th layer of spraying layer 11; Purpose is to cover the spray dilute-phase zone, and the water conservancy diversion flue gas is to spraying emulsion zone, and velocity field distributes in the tower thereby improve; Reduce flue gas and escape, improve desulfuration efficiency.
Particularly, describe the structure of ground floor gas gathering ring 4 for example with reference to Fig. 2 and 3, the gas gathering ring structure of other each layers is identical therewith, and therefore the descriptions thereof are omitted.As shown in Figure 2, gas gathering ring 4 preferably is spliced into ridge by upper plate 41 and lower plate 42, and angle is 60 ° between preferred two plates, and the ridge point points in the tower, and root is fixed in Ta Bi, in tower, processes the ring-type (see figure 3) round tower wall inboard.The distance of the ridge point of this ridge structure (intersection point of two plates promptly) to tower wall preferably equals spraying layer outmost turns nozzle to tower span and leaves, and is also different for this distance of spray column of different size, generally between 400-800mm.The gas gathering ring material can use carbon steel to add the anti-resistant materials that wash away such as glass resin flake, alloy, fiberglass.When gas gathering ring was applied to the less spray column of size, gas gathering ring can add glass resin flake with carbon steel to be processed, and at this moment because the gas gathering ring size is less, can be directly welded on the tower wall.When gas gathering ring was applied to larger-size spray column, the gas gathering ring size was also bigger, conduct oneself with dignity and the shock loading of bearing also bigger, will consider in gas gathering ring, to install and reinforce and supporting member, such as reinforcement or deep floor are installed on upper plate 41 and/or lower plate 42.In this preferred embodiment, the upper plate 41 of gas gathering ring all becomes hexagonal angle with the tower wall with lower plate 42, and is as shown in Figure 2, and flue gas is behind water conservancy diversion, and the pressure loss is also little, and this also just is applicable to the transformation that promotes old tower performance very much.Further preferably, upper plate 41 and/or lower plate 42 can become rounding off with the tower wall or from tower wall protrusion in the arc-shaped, so just produce the various deformation scheme shown in Fig. 4-11.In the embodiment of Fig. 4, the cross sectional shape of upper plate 41 is the circular arc that raises up, and the cross sectional shape of lower plate 42 is the linear that is inclined upwardly and extends.In the embodiment of Fig. 5, the cross sectional shape of upper plate 41 is the circular arc that raises up, and lower plate 42 becomes rounding off with the tower wall.In the embodiment of Fig. 6, the cross sectional shape of upper plate 41 is the linear of downward-sloping extension, and lower plate 42 becomes rounding off with the tower wall.In the embodiment of Fig. 7, upper plate 41 becomes rounding off with the tower wall, and the cross sectional shape of lower plate 42 is the linear that is inclined upwardly and extends.In the embodiment of Fig. 8, the cross sectional shape of upper plate 41 is the linear of downward-sloping extension, and the cross sectional shape of lower plate 42 is the circular arc to lower convexity.In the embodiment of Fig. 9, the cross sectional shape of upper plate 41 is the circular arc that raises up, and the cross sectional shape of lower plate 42 is the circular arc to lower convexity.In the embodiment of Figure 10, upper plate 41 becomes rounding off with the tower wall, and lower plate 42 becomes rounding off with the tower wall.In the embodiment of Figure 11, upper plate 41 becomes rounding off with the tower wall, and the cross sectional shape of lower plate 42 is the circular arc to lower convexity.
In each above preferred embodiment, gas gathering ring not only has the function through lower plate 42 water conservancy diversion flue gases, also has the effect that makes full use of slurries through upper plate 41.In the conventional spray column of this gas gathering ring was not set, a large amount of slurries caused these slurries not to be fully utilized along flowing to the slurries pond under the tower wall.After spray column installed gas gathering ring of the present invention additional, the gas gathering ring upper plate 41 feasible slurries that flow down along tower wall drop again drenched in the spray column, and this part slurries is contacted with flue gas again, accomplish to make full use of the circulating pump acting, have played energy-conserving action.This gas gathering ring does not have the dead angle to exist, and scale formation also just is difficult for generation to slurry stream through the back.
What need that those of ordinary skills keep a close eye on is; Although what describe in the foregoing description all is the gas gathering ring that possesses upper plate 41 and lower plate 42 simultaneously; But in fact flue gas is amassed wealth by heavy taxation to the spray compact district in order to realize; The goal of the invention of flue gas in the diversion tower provides the gas gathering ring that only has lower plate 42 just enough.The setting of upper plate 41 is just in order to realize the other attached purpose of water conservancy diversion slurries, so upper plate 41 is not the essential features that solves technical problem of the present invention.
Although combine accompanying drawing to describe the preferred embodiment of spray column of the present invention and gas gathering ring thereof in the preceding text, it should be understood by one skilled in the art that the present invention is not limited to the particular content of above-mentioned preferred embodiment.In addition, certain functions of components of apparatus of the present invention can be realized by two or more parts, and vice versa.Generally speaking, those of ordinary skills can make various modification and improvement under the situation of the scope of the invention that does not exceed the qualification of accompanying Claim book.
Claims (20)
1. gas gathering ring that is used for the spray column that flue gas handles is characterized in that this gas gathering ring comprises:
First plate, said first plate is connected on the sidewall of said spray column at the one of which end, and said first plate extends upward towards the centroclinal of spray column from the sidewall of said spray column, wherein:
The cross sectional shape of said first plate is the circular arc to lower convexity; Perhaps
Said first plate is straight and has angle with the sidewall of said spray column that said angle is 120 °.
2. gas gathering ring according to claim 1 is characterized in that: the junction of the sidewall of said first plate and said spray column is a rounding off.
3. gas gathering ring according to claim 1 is characterized in that: said first plate directly is welded on the sidewall of said spray column.
4. gas gathering ring according to claim 1 is characterized in that: said first plate removably is fixed on the sidewall of said spray column through fastener.
5. gas gathering ring according to claim 1 is characterized in that: said first plate is provided with reinforcement or deep floor.
6. gas gathering ring according to claim 1 is characterized in that: the manufactured materials of said first plate is selected from carbon steel and adds at least a in glass resin flake, alloy, the fiberglass.
7. gas gathering ring according to claim 1 is characterized in that: this gas gathering ring also comprises:
Second plate, said second plate is being connected on the sidewall of said spray column above said first plate, and said second plate centroclinal to extending below from the sidewall of said spray column towards spray column.
8. gas gathering ring according to claim 7 is characterized in that: the junction of the sidewall of said second plate and said spray column is a rounding off.
9. gas gathering ring according to claim 7 is characterized in that: the cross sectional shape of said second plate is the circular arc that raises up.
10. gas gathering ring according to claim 7 is characterized in that: said second plate is straight and has angle with the sidewall of said spray column.
11. gas gathering ring according to claim 10 is characterized in that: said second plate is 120 ° with the angle that sidewall became of said spray column.
12. gas gathering ring according to claim 7 is characterized in that: said second plate directly is welded on the sidewall of said spray column.
13. gas gathering ring according to claim 7 is characterized in that: said second plate removably is fixed on the sidewall of said spray column through fastener.
14. gas gathering ring according to claim 7 is characterized in that: said second plate is provided with reinforcement or deep floor.
15. gas gathering ring according to claim 7 is characterized in that: the manufactured materials of said second plate is selected from carbon steel and adds at least a in glass resin flake, alloy, the fiberglass.
16. gas gathering ring according to claim 7 is characterized in that: said first plate and said second plate intersect.
17. gas gathering ring according to claim 16 is characterized in that: the angle of intersection of said first plate and said second plate is 60 °.
18. gas gathering ring according to claim 16 is characterized in that: the distance of the joining of said first plate and said second plate to the sidewall of said spray column equals the distance of sidewall of spraying layer outmost turns nozzle to the said spray column of said spray column.
19. gas gathering ring according to claim 16 is characterized in that: the distance of the sidewall of the joining of said first plate and said second plate to said spray column is 400-800mm.
20. one kind is used for the spray column that flue gas is handled, it comprises that at least one is according to each described gas gathering ring among the claim 1-19.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008801141777A CN101855004B (en) | 2007-12-29 | 2008-09-05 | Spray column for fuel gas treatment and gas collecting collar used in the spray column |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007103060502A CN101274214A (en) | 2007-12-29 | 2007-12-29 | Spray tower for treating flue gas and gas gathering ring for the same |
| CN200710306050.2 | 2007-12-29 | ||
| PCT/CN2008/001586 WO2009082878A1 (en) | 2007-12-29 | 2008-09-05 | Spray column for fuel gas treatment and gas collecting collar used in the spray column |
| CN2008801141777A CN101855004B (en) | 2007-12-29 | 2008-09-05 | Spray column for fuel gas treatment and gas collecting collar used in the spray column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101855004A CN101855004A (en) | 2010-10-06 |
| CN101855004B true CN101855004B (en) | 2012-10-10 |
Family
ID=39994332
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007103060502A Pending CN101274214A (en) | 2007-12-29 | 2007-12-29 | Spray tower for treating flue gas and gas gathering ring for the same |
| CN2008801141777A Active CN101855004B (en) | 2007-12-29 | 2008-09-05 | Spray column for fuel gas treatment and gas collecting collar used in the spray column |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007103060502A Pending CN101274214A (en) | 2007-12-29 | 2007-12-29 | Spray tower for treating flue gas and gas gathering ring for the same |
Country Status (3)
| Country | Link |
|---|---|
| CN (2) | CN101274214A (en) |
| TR (1) | TR201005158T1 (en) |
| WO (1) | WO2009082878A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274214A (en) * | 2007-12-29 | 2008-10-01 | 北京博奇电力科技有限公司 | Spray tower for treating flue gas and gas gathering ring for the same |
| CN107349779A (en) * | 2017-09-12 | 2017-11-17 | 浙江千尧环境工程有限公司 | A kind of absorption tower |
| CN112090266A (en) * | 2020-09-11 | 2020-12-18 | 北京清新环境技术股份有限公司 | Wet desulphurization device |
| CN215610540U (en) * | 2021-06-08 | 2022-01-25 | 江苏峰业科技环保集团股份有限公司 | Wet flue gas desulfurization device |
| CN114042374B (en) * | 2021-11-16 | 2023-11-07 | 临西县军华机械配件有限公司 | Alkali liquor spray tower capable of preventing wall flow |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1785482A (en) * | 2005-11-21 | 2006-06-14 | 孙克勤 | Spray tower having absorber paste redistribution device |
| CN101053743A (en) * | 2007-04-30 | 2007-10-17 | 武汉凯迪电力环保有限公司 | Bilateral opposite flushing inlet wet ammonia method for flue gas desulfurizing technology and device thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2219432Y (en) * | 1995-04-07 | 1996-02-07 | 付金兴 | Impacting self-excitation type combined duster |
| CN2236076Y (en) * | 1995-12-14 | 1996-09-25 | 烟台开发区锅炉安装有限责任公司 | Sweetening dust remover |
| JP2001293330A (en) * | 2000-04-12 | 2001-10-23 | Babcock Hitachi Kk | Gas-liquid contact method and device therefor |
| CN101274214A (en) * | 2007-12-29 | 2008-10-01 | 北京博奇电力科技有限公司 | Spray tower for treating flue gas and gas gathering ring for the same |
-
2007
- 2007-12-29 CN CNA2007103060502A patent/CN101274214A/en active Pending
-
2008
- 2008-09-05 TR TR2010/05158T patent/TR201005158T1/en unknown
- 2008-09-05 WO PCT/CN2008/001586 patent/WO2009082878A1/en active Application Filing
- 2008-09-05 CN CN2008801141777A patent/CN101855004B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1785482A (en) * | 2005-11-21 | 2006-06-14 | 孙克勤 | Spray tower having absorber paste redistribution device |
| CN101053743A (en) * | 2007-04-30 | 2007-10-17 | 武汉凯迪电力环保有限公司 | Bilateral opposite flushing inlet wet ammonia method for flue gas desulfurizing technology and device thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101855004A (en) | 2010-10-06 |
| WO2009082878A1 (en) | 2009-07-09 |
| CN101274214A (en) | 2008-10-01 |
| TR201005158T1 (en) | 2011-07-21 |
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