CN204841407U - Desulfurization absorption tower and reduction of discharging device of assisting tower - Google Patents
Desulfurization absorption tower and reduction of discharging device of assisting tower Download PDFInfo
- Publication number
- CN204841407U CN204841407U CN201520499426.6U CN201520499426U CN204841407U CN 204841407 U CN204841407 U CN 204841407U CN 201520499426 U CN201520499426 U CN 201520499426U CN 204841407 U CN204841407 U CN 204841407U
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- Prior art keywords
- layer
- absorption tower
- spray
- tower
- spraying layer
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Links
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 67
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 20
- 230000023556 desulfurization Effects 0.000 title claims abstract description 20
- 230000009467 reduction Effects 0.000 title claims abstract description 12
- 238000007599 discharging Methods 0.000 title abstract 2
- 239000002002 slurry Substances 0.000 claims abstract description 58
- 239000007921 spray Substances 0.000 claims abstract description 44
- 238000005507 spraying Methods 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 abstract description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 7
- 239000003546 flue gas Substances 0.000 abstract description 7
- 238000013461 design Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract 1
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 12
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 238000011161 development Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model relates to a desulfurization absorption tower and reduction of discharging device of assisting tower, include: absorption tower, its upper portion are established the first layer, second of spraying and are sprayed layer, third and spray layer, fourth and spray the layer, the 5th spray the layer, and the first layer, second of spraying sprays layer, third and spray layer, fourth and spray the layer and the 5th spray the layer and all establish a plurality of nozzles, high -efficient vortex module, it locates the absorption tower entry and the first layer sprays between the layer, first thick liquid pond, it locates the absorption tower lower part, assist the tower, it locates the absorption tower below, second thick liquid pond, it locates subsidiary tower lower part, five absorption tower recycle slurry liquid pumps, it is located the absorption tower and assists the tower left, with five spray layer, first thick liquid pond and second thick liquid pond and be connected. The beneficial effect of the utility model: nozzle thick liquid coverage rate reaches 250%, guarantees the steady operation of power plant's host computer, and the emergence of unit trouble has effectively been avoided to the desulfurization system steady operation, and the desulfurization flue gas has reached the requirement that the environmental protection was discharged, has optimized the design, and the cost is reduced has great economic implications.
Description
Technical Field
The utility model relates to a desulfurization absorption tower and the emission reduction device who assists the tower, concretely relates to reduce absorption tower and assist tower desulfurization fume emission's emission reduction device.
Background
With the continuous development of Chinese economy, the power demand continuously increases, the haze continuously influences, and PM2.5 is controlled to mention a agenda schedule. The local government and the electric power enterprise have issued the construction or transformation requirements of 'ultra-low emission', 'near zero emission' and 'reaching the emission standard of the gas turbine'. The ultra-low emission technology scientifically guides sustainable development of ultra-clean emission in the thermal power industry.
Development and reform committee issued coal-electric energy conservation, emission reduction, upgrade and transformation action plan (2014-2020) severely controls atmospheric pollutant emission. A newly-built coal-fired power generating unit (including a unit which is built and projects and is brought into national thermal power construction planning) should be synchronously built with advanced and efficient desulfurization, denitrification and dust removal facilities, and a flue gas bypass channel is not required to be arranged. The emission concentration of air pollutants of newly-built coal-fired generating sets in eastern regions (11 cities of Liaoning, Beijing, Tianjin, Hebei, Shandong, Shanghai, Jiangsu, Zhejiang, Fujian, Guangdong, Hainan and the like) basically reaches the emission limit value of a gas turbine set (namely, the emission concentrations of smoke dust, sulfur dioxide and nitrogen oxides are respectively not higher than 10 mg/cubic meter, 35 mg/cubic meter and under the condition that the reference oxygen content is 6%). The newly built units in the middle area (8 provinces such as Heilongjiang, Jilin, Shanxi, Anhui, Hubei, Hunan, Henan, Jiangxi and the like) are close to or reach the emission limit of the gas turbine unit in principle, and the newly built units in the west area are encouraged to be close to or reach the emission limit of the gas turbine unit. And the synchronous development of the combined and synergistic removal of the atmospheric pollutants is supported, and the emission of pollutants such as sulfur trioxide, mercury, arsenic and the like is reduced.
The existing desulfurization system can feed sulfur dioxide (6% O) into the inlet under the condition that the actual sulfur content of the fuel coal reaches 3.0%2Standard state, dry state) concentration of 6500mg/Nm3Meanwhile, the sulfur dioxide emission concentration of the FGD outlet flue gas is lower than 200mg/Nm3And the desulfurization efficiency of the system reaches more than 97 percent.
The Shanxi province development and reform Commission and province environmental protection hall lead to' promoting the whole province coal-fired power generationThe implementation suggestion of the ultra-clean emission of the flue gas of the unit is that the ultra-clean emission of the flue gas of the coal-fired power generating unit in Shanxi province is divided into two types of standards: ultra-clean emission standard I: nitrogen Oxides (NO)x)50mg/Nm3Sulfur dioxide (SO)2)35mg/Nm35mg/Nm of smoke dust3The executing main body is a raw coal burning generator set. The existing desulfurization facilities can not meet the requirement of sulfur dioxide (SO)2)35mg/Nm3Emission requirements, and therefore, system modifications to the unit are required.
SUMMERY OF THE UTILITY MODEL
To the weak point that exists in the above-mentioned problem, the utility model provides a reduce absorption tower and assist tower desulfurization fume emission's emission reduction device.
In order to achieve the above object, the utility model provides a desulfurization absorption tower and emission reduction device who assists tower, include:
the absorption tower is provided with a first spraying layer, a second spraying layer, a third spraying layer, a fourth spraying layer and a fifth spraying layer at the upper part, and the first spraying layer, the second spraying layer, the third spraying layer, the fourth spraying layer and the fifth spraying layer are all provided with a plurality of nozzles;
the high-efficiency turbulence module is arranged between the inlet of the absorption tower and the first layer of spraying layer;
the first slurry pool is arranged at the lower part of the absorption tower;
an auxiliary tower arranged below the absorption tower;
the second slurry pool is arranged at the lower part of the auxiliary tower;
five absorption tower circulating slurry pumps are arranged on the left of the absorption tower and the auxiliary tower;
wherein,
one end of the first absorption tower circulating slurry pump is connected with the first spraying layer, and the other end of the first absorption tower circulating slurry pump is connected with the first slurry pool;
one end of the second absorption tower circulating slurry pump is connected with the second spraying layer, and the other end of the second absorption tower circulating slurry pump is connected with the first slurry pool;
one end of the third absorption tower circulating slurry pump is connected with the third spraying layer, and the other end of the third absorption tower circulating slurry pump is connected with the first slurry pool;
one end of the fourth absorption tower circulating slurry pump is connected with the fourth spraying layer, and the other end of the fourth absorption tower circulating slurry pump is connected with the second slurry pool;
and one end of the fifth absorption tower circulating slurry pump is connected with the fifth spraying layer, and the other end of the fifth absorption tower circulating slurry pump is connected with the second slurry pool.
As a further improvement, the first layer that sprays the second spray the layer the third spray the layer the fourth spray the layer with the fifth spray in the layer arbitrary four spray the nozzle on the layer be two-way nozzle.
The utility model has the advantages that: the coverage rate of the nozzle slurry reaches 250%, the stable operation of a main engine of a power plant and the stable operation of a desulfurization system are ensured, the occurrence of unit faults is effectively avoided, the desulfurization flue gas meets the requirement of environment-friendly emission, the design is optimized, the cost is reduced, and the method has great economic significance.
Drawings
FIG. 1 is a schematic structural view of the emission reduction device of the desulfurization absorption tower and the auxiliary tower of the present invention.
In the figure: 1. an absorption tower; 11. an absorber inlet; 12. an outlet of the absorption tower; 21. a first spray layer; 22. a second spray layer; 23. a third spray layer; 24. a fourth spray layer; 25. a fifth spray layer; 3. a high-efficiency turbulence module; 41. a first absorption tower circulating slurry pump; 42. a second absorption tower circulating slurry pump; 43. a third absorption tower circulating slurry pump; 44. a fourth absorption tower circulating slurry pump; 45. a fifth absorption tower circulating slurry pump; 5. a first slurry tank; 6. auxiliary towers; 7. and a second slurry tank.
Detailed Description
As shown in figure 1, the embodiment of the utility model provides a desulfurization absorption tower with assist emission reduction device of tower, a serial communication port, including absorption tower 1, five spray layers, high-efficient vortex module 3, first thick liquid pond 5, assist tower 6, second thick liquid pond 7 and five absorption tower circulating slurry pumps.
The absorption tower 1 upper portion is equipped with first spray layer 21, the second sprays the layer 22, the third sprays the layer 23, the fourth sprays the layer 24, the fifth sprays the layer 25, first spray layer 21, the second sprays the layer 22, the third sprays the layer 23, the fourth sprays the layer 24 and the fifth sprays the layer 25 and all is equipped with a plurality of nozzles, first spray layer 21, the second sprays the layer 22, the third sprays the layer 23, the fourth sprays the nozzle that the layer 24 and the fifth sprays on the layer on arbitrary four spray layers in the layer 25 and be two-way nozzle, the coverage of nozzle thick liquid reaches 250%. The high-efficiency turbulent flow module 3 is arranged between the absorption tower inlet 11 and the first layer spraying layer 21. The first slurry tank 5 is provided at the lower part of the absorption tower 1. The auxiliary tower 6 is arranged below the absorption tower 1. The second slurry tank 7 is arranged at the lower part of the auxiliary tower 6. Five absorption tower circulating slurry pumps are arranged at the left of the absorption tower 1 and the auxiliary tower 6.
Wherein, one end of the first absorption tower circulating slurry pump 41 is connected with the first spraying layer 21, and the other end is connected with the first slurry pool 5; a second absorption tower circulating slurry pump 42, one end of which is connected with the second spraying layer 22 and the other end is connected with the first slurry pool 5; a third absorption tower circulating slurry pump 43, one end of which is connected with the third spraying layer 23 and the other end of which is connected with the first slurry pool 5; a fourth absorption tower circulating slurry pump 44, one end of which is connected with the fourth spraying layer 24 and the other end of which is connected with the second slurry pool 7; and one end of the fifth absorption tower circulating slurry pump 45 is connected with the fifth spraying layer 25, and the other end of the fifth absorption tower circulating slurry pump is connected with the second slurry pool 7.
The utility model discloses an emission reduction device has guaranteed the steady operation of power plant's host computer, and desulfurization system steady operation has avoided the emergence of unit trouble effectively, and the desulfurization flue gas has reached the requirement that the environmental protection was discharged, has optimized the design, and the cost is reduced has great economic meaning.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. The utility model provides a desulfurization absorption tower and assist emission reduction device of tower which characterized in that includes:
the absorption tower (1) is provided with a first spraying layer (21), a second spraying layer (22), a third spraying layer (23), a fourth spraying layer (24) and a fifth spraying layer (25) at the upper part, and the first spraying layer (21), the second spraying layer (22), the third spraying layer (23), the fourth spraying layer (24) and the fifth spraying layer (25) are provided with a plurality of nozzles;
the high-efficiency turbulent flow module (3) is arranged between the absorption tower inlet (11) and the first layer of spraying layer (21);
a first slurry tank (5) provided at the lower part of the absorption tower (1);
an auxiliary tower (6) provided below the absorption tower (1);
a second slurry tank (7) provided at the lower part of the auxiliary tower (6);
five absorption tower circulating slurry pumps are arranged on the left of the absorption tower (1) and the auxiliary tower (6);
wherein,
a first absorption tower circulating slurry pump (41), one end of which is connected with the first spraying layer (21), and the other end of which is connected with the first slurry pool (5);
one end of the second absorption tower circulating slurry pump (42) is connected with the second spraying layer (22), and the other end of the second absorption tower circulating slurry pump is connected with the first slurry pool (5);
a third absorption tower circulating slurry pump (43), one end of which is connected with the third spraying layer (23), and the other end of which is connected with the first slurry pool (5);
one end of the fourth absorption tower circulating slurry pump (44) is connected with the fourth spraying layer (24), and the other end of the fourth absorption tower circulating slurry pump is connected with the second slurry pool (7);
and one end of the fifth absorption tower circulating slurry pump (45) is connected with the fifth spraying layer (25), and the other end of the fifth absorption tower circulating slurry pump is connected with the second slurry pool (7).
2. An abatement device according to claim 1, wherein the spray nozzles on any four of the first spray layer (21), the second spray layer (22), the third spray layer (23), the fourth spray layer (24) and the fifth spray layer (25) are bi-directional spray nozzles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520499426.6U CN204841407U (en) | 2015-07-10 | 2015-07-10 | Desulfurization absorption tower and reduction of discharging device of assisting tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520499426.6U CN204841407U (en) | 2015-07-10 | 2015-07-10 | Desulfurization absorption tower and reduction of discharging device of assisting tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204841407U true CN204841407U (en) | 2015-12-09 |
Family
ID=54732005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520499426.6U Expired - Fee Related CN204841407U (en) | 2015-07-10 | 2015-07-10 | Desulfurization absorption tower and reduction of discharging device of assisting tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204841407U (en) |
-
2015
- 2015-07-10 CN CN201520499426.6U patent/CN204841407U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151209 |