CN207628210U - A kind of dry desulfurization denitration reaction tower gas approach structure and flue gas flow guiding device - Google Patents
A kind of dry desulfurization denitration reaction tower gas approach structure and flue gas flow guiding device Download PDFInfo
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- CN207628210U CN207628210U CN201820442280.5U CN201820442280U CN207628210U CN 207628210 U CN207628210 U CN 207628210U CN 201820442280 U CN201820442280 U CN 201820442280U CN 207628210 U CN207628210 U CN 207628210U
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- airflow fence
- reaction tower
- curved segment
- deflector
- gas approach
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Abstract
The utility model is related to a kind of reaction tower gas approach structures, the reaction tower gas approach structure includes bottom of tower air channel structure and flue gas flow guiding device, the bottom of tower air channel structure includes entrance curved segment (1), expansion segment (2) and cone bucket section (3), flue gas flow guiding device includes airflow fence one (4), airflow fence two (5) and airflow fence three (6), the lower part of entrance curved segment (1) is provided with cone bucket section (3), the top of entrance curved segment (1) is provided with expansion segment (2), airflow fence one (4) is disposed in the air channel structure of bottom of tower, airflow fence two (5) and airflow fence three (6).In pyramidal structure process of optimization, tower entrance guiding plate plays an important roll, and can effectively improve flow field state, and reasonable layout flue gas adjusts flue gas flow direction, eliminates flow field deflection, is conducive to the efficient stable of conversion zone.
Description
Technical field
The utility model is related to a kind of reaction tower gas approach structure, more particularly to a kind of dry desulfurization denitration reaction tower enters
Mouth flue structure and flue gas flow guiding device, belong to flue gas desulfurization and denitrification technical field.
Background technology
Flue gas circulating fluidized bed desulfurization denitration technology is a kind of low-temperature flue gas desulfurizing and denitrifying process.Circulating fluidized bed dry
The key reaction place of desulphurization denitration is reaction tower.Flue gas is entered by lower inlet section in tower, passes through the expansion of tower lower part and cloth wind
Enter tower body principal piece after section, is finally flowed out from tower upper outlet section.Flue gas is uniformly distributed in tower and flowing is to improve desulfurization effect
An important factor for rate and reduction resistance.Uniform fluidized state depends not only on gas flow rate, granule organics and particle
Physical property, and influenced by pyramidal structure condition.In pyramidal structure process of optimization, enter tower mouth deflector with important
Effect can effectively improve flow field state, and reasonable layout flue gas adjusts flue gas flow direction, eliminates flow field deflection, is conducive to conversion zone
Efficient stable.
Simultaneously during dry flue gas desulphurization, it is very universal that absorbing tower bottom falls ash, especially bulky grain in absorption tower
The phenomenon that falling on bottom of tower is than more serious, accordingly, it is desirable to provide a kind of new technical solution solves the above problems.
Utility model content
The purpose of this utility model is that in view of the above problems, providing a kind of dry flue gas desulphurization tower entrance guiding
Device can efficiently and conveniently control air-flow and be uniformly distributed problem, and increase cone bucket structure in bottom of tower entrance curved segment lower part, be convenient for
Fall ash storage and outer row.Keep desulfurizing tower operation and maintenance more convenient.
The purpose of this utility model can be achieved through the following technical solutions.
A kind of reaction tower gas approach structure, which is characterized in that the reaction tower gas approach structure includes bottom of tower air duct
Structure and flue gas flow guiding device, the bottom of tower air channel structure include entrance curved segment, expansion segment and cone bucket section, flue gas flow guiding device packet
Airflow fence one, airflow fence two and airflow fence three are included, the lower part of entrance curved segment is provided with cone bucket section, the top setting of entrance curved segment
There is expansion segment, airflow fence one, airflow fence two and airflow fence three are disposed in flue gas flow guiding device.
Wherein, the reaction tower is dry desulfurization denitration reaction tower.
Wherein, airflow fence one is arranged at the rear portion of the smoke inlet of entrance curved segment, and airflow fence three is arranged in expansion segment and cone
On the joint portion for the section that struggles against, airflow fence two is arranged between airflow fence one and airflow fence three on flow of flue gas path.
Wherein, there is entrance curved segment horizontal part, curved segment portion and vertical portion, horizontal part and vertical portion to be connected by curved segment portion,
Wherein, there is horizontal part smoke inlet, smoke inlet to be arranged in the front end of horizontal part, and the rear end of horizontal part connects the one of curved segment portion
End, one end of the other end connection vertical portion in curved segment portion, the other end of vertical portion are connected with expansion segment.
Wherein, the engagement that horizontal part and curved segment portion are preferably provided at the rear portion of the smoke inlet is arranged in airflow fence one
It in portion, is preferably provided at again on the one end in curved segment portion, airflow fence three is arranged on the joint portion of expansion segment and cone bucket section, preferably
It is arranged on the other end of vertical portion, airflow fence two is arranged between airflow fence one and airflow fence three on flow of flue gas path,
It is preferably provided on the joint portion of curved segment portion and vertical portion.
Wherein, airflow fence one, airflow fence two and airflow fence three are respectively provided with multiple deflectors, and each deflector width is
100-500mm, preferably 300mm.
Wherein, airflow fence one, airflow fence two and airflow fence three are respectively provided with multiple deflectors, and each deflector is in flue
It is inside equally spaced, forms multiple channels, the mutual spacing of deflector is 100-500mm, preferably 300-350mm.
Wherein, each deflector in airflow fence one is parallel and 45 ° of angle with horizontal plane, and each deflector in airflow fence two is flat
90 ° of row and angle with horizontal plane.Each deflector angle in airflow fence three is different.
Wherein, each deflector angle in airflow fence three is different, and arrangement form is, vertical by one piece of intermediate deflector
Upwards, side is tilted a certain angle remaining deflector outward, preferably 1-10 degree, preferably 5 degree or so again.
Wherein, airflow fence one, airflow fence two and airflow fence three are made of deflector, and the both ends of deflector are respectively welded
On the tube wall of the gas approach structure.
The beneficial effects of the utility model are：The utility model increases cone bucket section in entrance curved segment lower part, and by de-
Three layers of airflow fence are arranged in the gas approach curved segment of sulphur absorption tower, and it is uniform to improve flowing of the flue gas when entering absorption tower diffuser
Property, enhance flue gas and material and atomized water hybrid reaction effect in tower, to improve denitrification efficiency.And bottom of tower entrance curved segment
Lower part increases cone bucket structure, does not influence the flow field of flue gas, convenient for falling ash storage and outer row, keeps desulfurizing tower operation and maintenance more convenient.
Description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and detailed description.
Fig. 1 is the utility model reaction tower gas approach structure three-dimensional schematic diagram.
Fig. 2 is the utility model front view.
Fig. 3 is three deflector angle schematic diagram of the utility model water conservancy diversion grid.
Serial number in figure：1, entrance curved segment；2, expansion segment；3, cone bucket section；4, airflow fence one；5, airflow fence two；6, airflow fence
Three.
Specific implementation mode
As shown in Figs. 1-2, a kind of reaction tower gas approach structure, reaction tower are dry desulfurization denitration reaction tower, described anti-
It includes bottom of tower air channel structure and flue gas flow guiding device to answer tower gas approach structure, the bottom of tower air channel structure include entrance curved segment 1,
Expansion segment 2 and cone bucket section 3, flue gas flow guiding device include airflow fence 1, airflow fence 25 and airflow fence 36, entrance curved segment 1
Lower part is provided with cone bucket section 3, and the top of entrance curved segment 1 is provided with expansion segment 2, be disposed in flue gas flow guiding device airflow fence 1,
Airflow fence 25 and airflow fence 36.Entrance curved segment 1 has horizontal part, curved segment portion and vertical portion, and horizontal part and vertical portion pass through
Curved segment portion connects, wherein there is horizontal part smoke inlet, smoke inlet to be arranged in the front end of horizontal part, and the rear end of horizontal part connects
The one end in curved segment portion, one end of the other end connection vertical portion in curved segment portion are connect, the other end of vertical portion is connected with expansion segment 2.
Airflow fence 1 is arranged on the joint portion for being preferably provided at horizontal part and curved segment portion at the rear portion of the smoke inlet,
It is preferably provided at again on the one end in curved segment portion, airflow fence 36 is arranged on the joint portion of expansion segment 2 and cone bucket section 3, preferably sets
It sets on the other end of vertical portion, airflow fence 25 is arranged between airflow fence 1 and airflow fence 36 on flow of flue gas path,
It is preferably provided on the joint portion of curved segment portion and vertical portion.
Wherein, airflow fence 1, airflow fence 25 and airflow fence 36 are respectively provided with multiple deflectors, and each deflector is wide
Degree is 100-500mm, preferably 300mm.Each deflector is equally spaced in flue, forms multiple channels, deflector phase
Spacing between mutually is 100-500mm, preferably 300-350mm.The both ends of deflector are respectively welded at the gas approach knot
On the tube wall of structure.Each deflector in airflow fence 1 is parallel and 45 ° of angle with horizontal plane, and each deflector in airflow fence 25 is flat
90 ° of row and angle with horizontal plane.Shown in Fig. 3, in order to improve the flow field of curved segment outlet, each deflector angle in airflow fence 36
It is different.Each deflector angle in airflow fence 36 is different, and arrangement form is to lean on one piece of intermediate deflector vertically upward,
Side is tilted a certain angle remaining deflector outward, preferably 1-10 degree, preferably 5 degree or so again.
Claims (13)
1. a kind of reaction tower gas approach structure, which is characterized in that the reaction tower gas approach structure includes bottom of tower air duct knot
Structure and flue gas flow guiding device, the bottom of tower air channel structure include entrance curved segment (1), expansion segment (2) and cone bucket section (3), and flue gas is led
It includes airflow fence one (4), airflow fence two (5) and airflow fence three (6) to flow device, and the lower part of entrance curved segment (1) is provided with cone bucket
Section (3), the top of entrance curved segment (1) is provided with expansion segment (2), airflow fence one (4), airflow fence is disposed in the air channel structure of bottom of tower
Two (5) and airflow fence three (6).
2. a kind of reaction tower gas approach structure according to claim 1, which is characterized in that the reaction tower is de- for dry method
Sulphur denitration reaction tower.
3. a kind of reaction tower gas approach structure according to claim 1 or 2, which is characterized in that airflow fence one (4) is arranged
At the rear portion of the smoke inlet of entrance curved segment (1), airflow fence three (6) is arranged at the joint portion of expansion segment (2) and cone bucket section (3)
On, airflow fence two (5) is arranged between airflow fence one (4) and airflow fence three (6) on flow of flue gas path.
4. a kind of reaction tower gas approach structure according to claim 1 or 2, which is characterized in that entrance curved segment (1) has
Horizontal part, curved segment portion and vertical portion, horizontal part and vertical portion are connected by curved segment portion, wherein horizontal part has smoke inlet, cigarette
Gas entrance is arranged in the front end of horizontal part, the one end in the rear end connection curved segment portion of horizontal part, and the other end connection in curved segment portion is vertical
The other end of the one end in portion, vertical portion is connected with expansion segment (2).
5. a kind of reaction tower gas approach structure according to claim 4, which is characterized in that airflow fence one (4) setting exists
The rear portion of the smoke inlet, airflow fence three (6) are arranged on the joint portion of expansion segment (2) and cone bucket section (3), airflow fence two
(5) it is arranged between airflow fence one (4) and airflow fence three (6) on flow of flue gas path.
6. a kind of reaction tower gas approach structure according to claim 1 or 2, which is characterized in that airflow fence one (4) is led
Stream grid two (5) and airflow fence three (6) are respectively provided with multiple deflectors, and each deflector width is 100-500mm.
7. a kind of reaction tower gas approach structure according to claim 1 or 2, which is characterized in that airflow fence one (4) is led
Stream grid two (5) and airflow fence three (6) are respectively provided with multiple deflectors, and each deflector is equally spaced in flue, are formed
Multiple channels, the mutual spacing of deflector are 100-500mm.
8. a kind of reaction tower gas approach structure according to claim 1 or 2, which is characterized in that in airflow fence one (4)
Each deflector is parallel and 45 ° of angle with horizontal plane, and each deflector in airflow fence two (5) is parallel and 90 ° of angle with horizontal plane, leads
Each deflector angle flowed in grid three (6) is different.
9. a kind of reaction tower gas approach structure according to claim 1 or 2, which is characterized in that in airflow fence three (6)
Each deflector angle is different, and arrangement form is that vertically upward by one piece of intermediate deflector, remaining deflector rolls tiltedly outward
Certain angle.
10. a kind of reaction tower gas approach structure according to claim 9, which is characterized in that the certain angle is 1-
10 degree.
11. a kind of reaction tower gas approach structure according to one of claims 1 or 2, which is characterized in that airflow fence one
(4), airflow fence two (5) and airflow fence three (6) are made of deflector, and the both ends of deflector are respectively welded at the entrance cigarette
On the tube wall of road structure.
12. a kind of reaction tower gas approach structure according to claim 5, which is characterized in that airflow fence one (4) setting exists
On the joint portion in horizontal part and curved segment portion, airflow fence three (6) is arranged on the other end of vertical portion, and airflow fence two (5) setting exists
On the joint portion of curved segment portion and vertical portion.
13. a kind of reaction tower gas approach structure according to claim 12, which is characterized in that airflow fence one (4) is arranged
On the one end in curved segment portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820442280.5U CN207628210U (en) | 2018-03-30 | 2018-03-30 | A kind of dry desulfurization denitration reaction tower gas approach structure and flue gas flow guiding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820442280.5U CN207628210U (en) | 2018-03-30 | 2018-03-30 | A kind of dry desulfurization denitration reaction tower gas approach structure and flue gas flow guiding device |
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| CN207628210U true CN207628210U (en) | 2018-07-20 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109453644A (en) * | 2018-12-20 | 2019-03-12 | 福建龙净脱硫脱硝工程有限公司 | Dry FGD process reactor and its material pre-mixing apparatus |
| CN111589260A (en) * | 2020-03-16 | 2020-08-28 | 重庆三峰环境集团股份有限公司 | Waste incineration flue gas near-zero emission treatment system and process |
| CN112963854A (en) * | 2020-07-30 | 2021-06-15 | 山东大学 | Flue distributor with uniform temperature effect |
| CN112963853A (en) * | 2020-07-30 | 2021-06-15 | 山东大学 | Boiler system with flue distributor |
-
2018
- 2018-03-30 CN CN201820442280.5U patent/CN207628210U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109453644A (en) * | 2018-12-20 | 2019-03-12 | 福建龙净脱硫脱硝工程有限公司 | Dry FGD process reactor and its material pre-mixing apparatus |
| CN111589260A (en) * | 2020-03-16 | 2020-08-28 | 重庆三峰环境集团股份有限公司 | Waste incineration flue gas near-zero emission treatment system and process |
| CN111589260B (en) * | 2020-03-16 | 2024-01-23 | 重庆三峰环境集团股份有限公司 | Near-zero emission treatment system and process for waste incineration flue gas |
| CN112963854A (en) * | 2020-07-30 | 2021-06-15 | 山东大学 | Flue distributor with uniform temperature effect |
| CN112963853A (en) * | 2020-07-30 | 2021-06-15 | 山东大学 | Boiler system with flue distributor |
| CN112963853B (en) * | 2020-07-30 | 2021-12-21 | 山东大学 | Boiler system with flue distributor |
| CN112963854B (en) * | 2020-07-30 | 2021-12-21 | 山东大学 | Flue distributor with uniform temperature effect |
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