CN102397748B - Oxidation spray pipe of desulfurization absorption tower - Google Patents
Oxidation spray pipe of desulfurization absorption tower Download PDFInfo
- Publication number
- CN102397748B CN102397748B CN201110413913.2A CN201110413913A CN102397748B CN 102397748 B CN102397748 B CN 102397748B CN 201110413913 A CN201110413913 A CN 201110413913A CN 102397748 B CN102397748 B CN 102397748B
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- China
- Prior art keywords
- pipe
- absorption tower
- accelerating tube
- air
- hole
- Prior art date
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- 230000003647 oxidation Effects 0.000 title claims abstract description 25
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 25
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 21
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 15
- 230000003009 desulfurizing Effects 0.000 title claims abstract description 11
- 239000007921 spray Substances 0.000 title abstract description 10
- 230000001133 acceleration Effects 0.000 claims description 20
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 239000002002 slurry Substances 0.000 abstract description 28
- 238000000034 method Methods 0.000 abstract description 8
- 238000005381 potential energy Methods 0.000 abstract description 4
- 238000009792 diffusion process Methods 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000003434 inspiratory Effects 0.000 description 1
- 239000011268 mixed slurry Substances 0.000 description 1
- 230000001590 oxidative Effects 0.000 description 1
- 230000000505 pernicious Effects 0.000 description 1
- 230000000630 rising Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Abstract
The invention discloses an oxidation spray pipe of a desulfurization absorption tower, and relates to a part of a desulfurization spray absorption tower, in particular to an oxidation spray pipe which promotes the oxidation process of slurry by using potential energy outside the tower. The pipe comprises a descending accelerating pipe (1) and a mixed diffusion pipe (2), wherein a suction accelerating hole (3) is formed on the pipe wall of the lower end of the descending accelerating pipe (1); a splash-proof pipe section (4) is sleeved at the periphery of the suction accelerating hole (3) of the descending accelerating pipe (1) and forms an annular space with the outer wall of the descending accelerating pipe (1); the upper end of the splash-proof pipe section (4) is open and is higher than the suction accelerating hole (3); the lower end of the splash-proof pipe section (4) is connected with the outer wall of the descending accelerating pipe (1); and the mixed diffusion pipe (2) is connected to the lower end of the descending accelerating pipe (1). The oxidation spray pipe has the advantages of simple structure and low manufacturing cost and maintenance cost.
Description
Technical field
The present invention relates to desulfurization spray absorption tower accessory, be specifically related to utilize potential energy to promote the tower external oxidation playpipe of slurries oxidizing process.
Background technology
Desulfuration absorbing tower is to use physics and chemistry method, removes sulfur dioxide in flue gas (SO
2) device or structures.
In multiple desulfuration absorbing tower, having a class absorption tower is spray absorption tower, its main working process is to utilize slurry circulating pump to be transported to by absorbing slurries the spraying layer consisting of a plurality of nozzles, after absorbing the atomizer ejection of slurries by spraying layer, form intensive atomization slurry spray district, slurries contact with flue gas in atomizing spray district, in contact process, absorb the SO in flue gas
2deng pernicious gas, complete flue gas desulfurization, slurries descend slowly and lightly in the stock tank of bottom, absorption tower along inside, absorption tower.
Desulfurization also claims oxidation air with oxidation wind, is that the oxidation air that the equipment such as oxidation fan are provided is transported in pressure absorption tower slurries, for slurries provide oxygen, by the SO in slurries
2, H
2sO
3, SO
3 2-deng being oxidized to SO
4 2-and with slurries in Ca
2+reaction forms CaSO
42H
2o.
Oxidation air source of the gas has various ways, but is mainly the conveying that relies on external driver device to provide power to carry out oxidation air, has that complex structure, construction costs and maintenance cost are high, the shortcoming of inadequate energy-conserving and environment-protective.
Summary of the invention
Technical problem to be solved by this invention is: the object of this invention is to provide a kind of simple in structure, cost is low and maintenance cost is low a kind of oxidation injection pipe of desulfurization absorption tower.
Technical solution of the present invention is: it comprises decline accelerating tube and mixes anemostat, decline accelerating tube is provided with air-breathing acceleration hole in lower end tube wall, the periphery cover of decline accelerating tube in place, air-breathing acceleration hole has the outer wall of splashproof pipeline section and decline accelerating tube to form annular space, the upper end of splashproof pipeline section is uncovered and higher than air-breathing acceleration hole, the lower end of splashproof pipeline section is connected with decline accelerating tube outer wall, mix anemostat and be connected to decline accelerating tube lower end, described decline accelerating tube 1 lower end is outwards bell mouth shape expansion.
Technique effect of the present invention is: it have advantages of simple in structure, cost is low and maintenance cost is low, specific as follows:
1, can, for replacing oxidation fan or reducing exerting oneself of oxidation fan, reach energy-conservation effect.
2, the air that air-breathing acceleration hole sucks fully mixes within mixing anemostat, and mixed slurry reflux is to bottom, absorption tower, and flow process has increased by one times, has increased the time of contact of oxidation air and slurries, has improved the utilization rate of oxidation air.
3, lower for the plasm PH value spraying, be conducive to slurries oxidation.
If 4, mixing anemostat adopts and has higher flow velocity when the caliber identical with air-breathing acceleration hole can guarantee that slurry reflux enters absorption tower.Guarantee that slurry stream has higher kinetic energy.
5, the function that there is automatic adjusting inspiratory capacity the air-breathing conciliation of air intake duct chamber is accelerated in the decline of desulfuration absorbing tower high potential energy slurries, guarantees that operation is smooth and easy.
6, by adjusting the air inflow in the air-breathing acceleration of high potential energy slurries decline accelerating tube hole, absorption tower, can adjust oxidation air amount, can not cause exporting oxygen amount too high.
Accompanying drawing explanation
Fig. 1 is sectional structure chart of the present invention;
Fig. 2 is assembly structure schematic diagram of the present invention.
The specific embodiment
In Fig. 1, former smoke inlet 5, clean exhanst gas outlet 6, slurries gathering system 7, spray system 8.
As illustrated in fig. 1 and 2, it comprises decline accelerating tube 1 and mixes anemostat 2, decline accelerating tube 1 is provided with air-breathing acceleration hole 3 in lower end tube wall, the periphery cover of decline accelerating tube 1 in 3 places, air-breathing acceleration hole has splashproof pipeline section 4 and the outer wall of decline accelerating tube 1 to form annular space, the upper end of splashproof pipeline section 4 is uncovered and higher than air-breathing acceleration hole 3, the lower end of splashproof pipeline section 4 is connected with decline accelerating tube 1 outer wall, mixes anemostat 2 and is connected to decline accelerating tube 1 lower end.The annular space that splashproof pipeline section 4 and decline accelerating tube 1 surround has air-breathing conciliation and prevents the slurries function of splashing.
Described decline accelerating tube 1 lower end is outwards bell mouth shape expansion.
Described air-breathing acceleration hole 3 is axial long shape hole.。
Described air-breathing acceleration hole 3 is long ellipse hole.Also can adopt the slotted hole of other form
The lower port of decline accelerating tube 1 in 3 places, air-breathing acceleration hole and with mix anemostat 2 connections and all adopt the two-phase alloys steel plate of wear resistant corrosion resistant to make.Mixing anemostat 2 can adopt and the identical pipeline of accelerating tube 1 caliber that declines.
The concise and to the point process of the external oxidation injection pipe work of desulfuration absorbing tower slurries during operation:
1, the slurries that decline accelerating tube 1 receives from slurries gathering system 7 slurries absorption cells, slurries progressively accelerate in decline process, when through air-breathing acceleration hole 3, suction part air, slurries accelerate rapidly (acceleration herein approaches acceleration of gravity), and the mixture of slurries and air is back to absorption tower through mixing anemostat 2.
2, be back to the larger bubble of inside, absorption tower, under the effect of slurry stream, be sheared and form tiny bubble, tiny bubble is inner rising on absorption tower, completes further oxidation.
Claims (3)
1. an oxidation injection pipe of desulfurization absorption tower, it is characterized in that, it comprises decline accelerating tube (1) and mixes anemostat (2), decline accelerating tube (1) is provided with air-breathing acceleration hole (3) in lower end tube wall, the periphery cover that decline accelerating tube (1) is located in air-breathing acceleration hole (3) has splashproof pipeline section (4) and the outer wall of decline accelerating tube (1) to form annular space, the upper end of splashproof pipeline section (4) is uncovered and higher than air-breathing acceleration hole (3), the lower end of splashproof pipeline section (4) is connected with decline accelerating tube (1) outer wall, mix anemostat (2) and be connected to decline accelerating tube (1) lower end, described decline accelerating tube (1) lower end is outwards bell mouth shape expansion.
2. a kind of oxidation injection pipe of desulfurization absorption tower as claimed in claim 1, is characterized in that, described air-breathing acceleration hole (3) is axial long shape hole.
3. a kind of oxidation injection pipe of desulfurization absorption tower as claimed in claim 2, is characterized in that, described air-breathing acceleration hole (3) is long ellipse hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110413913.2A CN102397748B (en) | 2011-12-10 | 2011-12-10 | Oxidation spray pipe of desulfurization absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110413913.2A CN102397748B (en) | 2011-12-10 | 2011-12-10 | Oxidation spray pipe of desulfurization absorption tower |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102397748A CN102397748A (en) | 2012-04-04 |
| CN102397748B true CN102397748B (en) | 2014-02-19 |
Family
ID=45880633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110413913.2A Active CN102397748B (en) | 2011-12-10 | 2011-12-10 | Oxidation spray pipe of desulfurization absorption tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102397748B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728211B (en) * | 2012-07-25 | 2014-01-15 | 王秋平 | Device for injecting and inhaling in-tower oxidized air for desulfurizing absorption tower |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87106400A (en) * | 1987-09-16 | 1988-03-16 | 广西大学 | Two stage self-priming injection tank for generation |
| CN101153015A (en) * | 2006-09-28 | 2008-04-02 | 宁波万华聚氨酯有限公司 | Hole shooting flow type reactor and method for producing isocyanic ester by using the reactor |
| CN201719968U (en) * | 2010-07-02 | 2011-01-26 | 洛阳市天誉环保工程有限公司 | Multifunctional reactor for flue gas desulfurization and denitration |
| CN202336291U (en) * | 2011-12-10 | 2012-07-18 | 程爱平 | Oxidation injection pipe of desulfurization absorption tower |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW402520B (en) * | 1997-11-05 | 2000-08-21 | Mitsubishi Heavy Ind Ltd | Wet flue gas desulfurizer and oxygen-containing gas blowing device for use therein |
-
2011
- 2011-12-10 CN CN201110413913.2A patent/CN102397748B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87106400A (en) * | 1987-09-16 | 1988-03-16 | 广西大学 | Two stage self-priming injection tank for generation |
| CN101153015A (en) * | 2006-09-28 | 2008-04-02 | 宁波万华聚氨酯有限公司 | Hole shooting flow type reactor and method for producing isocyanic ester by using the reactor |
| CN201719968U (en) * | 2010-07-02 | 2011-01-26 | 洛阳市天誉环保工程有限公司 | Multifunctional reactor for flue gas desulfurization and denitration |
| CN202336291U (en) * | 2011-12-10 | 2012-07-18 | 程爱平 | Oxidation injection pipe of desulfurization absorption tower |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102397748A (en) | 2012-04-04 |
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