CN104056548B - Flow guiding device for flue gas inlet of adsorption tower - Google Patents
Flow guiding device for flue gas inlet of adsorption tower Download PDFInfo
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- CN104056548B CN104056548B CN201410254641.XA CN201410254641A CN104056548B CN 104056548 B CN104056548 B CN 104056548B CN 201410254641 A CN201410254641 A CN 201410254641A CN 104056548 B CN104056548 B CN 104056548B
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Abstract
The invention provides a flow guiding device for a flue gas inlet of an adsorption tower. The flow guiding device comprises a flow stabilization section shell, wherein one end of the flow stabilization section shell is connected with the flue gas inlet of the adsorption tower; a smoke inlet is formed in the other end, opposite to the adsorption tower, of the flow stabilization section shell; a first flow guiding plate, a second flow guiding plate and a third flow guiding plate are sequentially arranged in a direction from the top to the bottom of the adsorption tower in the flow stabilization section shell; the horizontal height of one end, close to the adsorption tower, of the first flow guiding plate is greater than that of one end close to the smoke inlet; the horizontal heights of the ends, close to the adsorption tower, of the second and third flow guiding plates are smaller than the those of the ends close to the smoke inlet. According to the flow guiding device, the flow direction and the flow velocity of flue gas are controlled to uniformly distribute the flue gas in the adsorption tower when the flue gas enters the adsorption tower, and meanwhile, due to the decreasing of the flow velocity, the flue gas is prevented from forming turbulent flow or vortex flow, a reducing agent (ammonia) and the flue gas can be mixed sufficiently, the resistance of gas flow is reduced, the retention time of the flue gas in the adsorption tower is prolonged, the denitration efficiency is improved, the condition of escape of ammonia is reduced and the production cost of an enterprise is lowered.
Description
Technical field
The present invention relates to a kind of adsorption tower, specifically a kind of adsorption tower smoke inlet guiding device.
Background technology
At present in the low-temperature denitration adsorption tower of setting after sda sulfur removal technology, using activated coke as adsorbent, and use ammonia
As reducing agent, by the reduction of the catalytic action of activated coke and the functional group of Surface Creation, by the nox reduction in flue gas
Become n2After discharge.And no guiding device at the gas approach of existing denitration adsorption tower, it is not equal that flue gas enters distribution during adsorption tower
Even, and flow velocity is very fast, easily forms turbulent flow or vortex, makes reducing agent (ammonia) be difficult to be sufficiently mixed with flue gas, also result in
In gas-flow resistance increase, adsorption tower, smoke distribution is uneven, and flow velocity is higher, and flue gas is less in absorption dwell time in the tower, goes out
The situation that adsorption tower is just discharged in reaction with flue gas do not participated in by existing reducing agent, and denitration efficiency is impacted, and is easily formed big simultaneously
Amount the escaping of ammonia, increases the production cost of enterprise.
Content of the invention
It is an object of the invention to provide a kind of adsorption tower smoke inlet guiding device, it can be when flue gas enters adsorption tower
Flue gas flow direction and flow velocity are controlled, so that flue gas is uniformly distributed in adsorption tower, reduce flow velocity, it is to avoid flue gas forms disorderly simultaneously
Stream or be vortexed, so that reducing agent (ammonia) is sufficiently mixed with flue gas, reduce gas-flow resistance, prolongation flue gas stop in adsorption tower when
Between, so that flue gas is fully reacted with reducing agent, improve denitration efficiency, reduce the escaping of ammonia situation, reduce enterprise's production capacity.
The present invention for achieving the above object, is achieved through the following technical solutions: includes current stabilization piece housing, current stabilization piece housing one
End is connected with the smoke inlet of adsorption tower, the current stabilization piece housing other end setting smoke inlet relative with adsorption tower, current stabilization piece housing
Interior first deflector, the second deflector and the 3rd deflector are installed successively by absorption top of tower to adsorption tower bottom direction, first
The level height near adsorption tower one end for the deflector is higher than near smoke inlet one end, and the second deflector and the 3rd deflector are near suction
The level height of attached tower one end is below near smoke inlet one end.Current stabilization piece housing includes top board, base plate and is arranged on top board
With the first side plate and second side plate being arranged on top board and base plate opposite side of base plate side, the first deflector, the second deflector
It is connected with the first side plate and the second side plate respectively with the 3rd deflector both sides.Angle α between first deflector and horizontal plane
Angle is 15 ° -25 °, and the angle of the angle β between the second deflector and horizontal plane is 5 ° -10 °, the 3rd deflector and horizontal plane
Between angle γ angle be 15 ° -25 °.First deflector two ends are connected with first level guide plate and the second horizontal guide plate respectively
Connect, the 3rd deflector is connected with the 3rd horizontal guide plate near one end of smoke inlet.Angle α between first deflector and horizontal plane
Angle be 20 °, the angle of the angle β between the second deflector and horizontal plane is 8 °, between the 3rd deflector and horizontal plane
The angle of angle γ is 20 °.Top board is parallel with the first deflector, and base plate is parallel with the second deflector.The setting of smoke inlet periphery is even
Acting flange.
It is an advantage of the current invention that: when flue gas enters adsorption tower, flue gas flow direction and flow velocity can be controlled, make cigarette
Gas is uniformly distributed in adsorption tower, reduces flow velocity, it is to avoid flue gas forms turbulent flow or vortex, makes reducing agent (ammonia) and flue gas simultaneously
It is sufficiently mixed, reduce gas-flow resistance, extend flue gas residence time in adsorption tower, so that flue gas is fully reacted with reducing agent, carry
High denitration efficiency, reduces the escaping of ammonia situation, reduces enterprise's production capacity.
Brief description
Fig. 1 is present configuration schematic diagram；
Fig. 2 is a-a cross section structure diagram in Fig. 1；
Fig. 3 is the air-flow patterns being not provided with existing adsorption column inlet during guiding device；
Fig. 4 is the air-flow that the first deflector of the present invention, the second deflector and the 3rd deflector adopt during best angle
Distribution map.
Specific embodiment
Adsorption tower smoke inlet guiding device of the present invention includes current stabilization piece housing 1, current stabilization piece housing 1 one end and suction
The smoke inlet of attached tower 2 connects, and current stabilization piece housing 1 other end setting smoke inlet 3 relative with adsorption tower 2, in current stabilization piece housing 1
First deflector 4, the second deflector 5 and the 3rd deflector 6 are installed successively by adsorption tower 2 top to adsorption tower 2 bottom direction, the
The level height near adsorption tower 2 one end for one deflector 4 is higher than near smoke inlet 3 one end, the second deflector 5 and the 3rd deflector
6 level heights near adsorption tower 2 one end are below near smoke inlet 3 one end.After flue gas enters current stabilization piece housing 1, first leads
Stream plate 4, the second deflector 5 and the 3rd deflector 6, to different directions water conservancy diversion, are reduced by pressure simultaneously, and flow velocity reduces, and are easy to extend
Flue gas residence time in adsorption tower, makes flue gas fully react with reducing agent, improves denitration efficiency, reduces the escaping of ammonia situation,
Reduce enterprise's production capacity.Wherein second deflector 5 and the 3rd deflector 6 all by lower section water conservancy diversion from flue gas to adsorption tower 2, favorably
It is fully contacted with the ascending air in adsorption tower 2 in flue gas, it is to avoid the ascending air in adsorption tower 2 is in current stabilization piece housing 1 bottom
Produce the relatively small vacuum area of pressure, cause smoke distribution uneven, the first deflector 4 by top from flue gas to adsorption tower 2
Water conservancy diversion, can reduce the angle between uprising gas flow direction in current stabilization piece housing 1 top flow of flue gas direction and adsorption tower, have
Beneficial to the turbulent flow or vortex eliminating in air-flow it is ensured that reducing agent is sufficiently mixed with flue gas, also can ensure that flue gas in current stabilization simultaneously
It is evenly distributed in piece housing 1.
Current stabilization piece housing 1 of the present invention includes top board 7, base plate 8 and be arranged on top board 7 and base plate 8 side first
Side plate 9 and the second side plate 10 being arranged on top board 7 and base plate 8 opposite side, the first deflector 4, the second deflector 5 and the 3rd water conservancy diversion
Plate 6 both sides are connected with the first side plate 9 and the second side plate 10 respectively.This structure has production and processing conveniently, is easy to and existing absorption
The advantage that the smoke inlet of tower is directly connected to.
The angle of inclination of the first deflector 4 of the present invention, the second deflector 5 and the 3rd deflector 6 is as follows: the first water conservancy diversion
The angle of the angle α between plate 4 and horizontal plane is 15 ° -25 °, and the angle of the angle β between the second deflector 5 and horizontal plane is
5 ° -10 °, the angle of the angle γ between the 3rd deflector 6 and horizontal plane is 15 ° -25 °.Obtained according to simulation of air flow experimental data
Know, when the first deflector 4 of the present invention, the second deflector 5 and the 3rd deflector 6 adopt above-mentioned angle of inclination, adsorption tower 2
Air flow method at smoke inlet and air-flow velocity situation, all in the range of preferably, disclosure satisfy that what existing low-temperature denitration produced
Actual demand.
The present invention, can be at the first deflector 4 two ends respectively with first in order to eliminate the turbulent flow in air-flow or vortex further
Horizontal guide plate 11 and the second horizontal guide plate 12 connect, and the 3rd deflector 6 is near one end of smoke inlet 3 with the 3rd horizontal guide plate 13 even
Connect.Simulation of air flow experimental data shows, installs energy after first level guide plate 11, the second horizontal guide plate 12 and the 3rd horizontal guide plate 13
Enough eliminate the small or vortex that deflector end is formed, further ensure that reducing agent is sufficiently mixed with flue gas.
The best angle of the first deflector 4 of the present invention, the second deflector 5 and the 3rd deflector 6 is as follows: the first water conservancy diversion
The angle of the angle α between plate 4 and horizontal plane is 20 °, and the angle of the angle β between the second deflector 5 and horizontal plane is 8 °, the
The angle of the angle γ between three deflectors 6 and horizontal plane is 20 °.First deflector 4 of the present invention, the second deflector 5 and
When 3rd deflector 6 adopts above-mentioned angle of inclination, the air flow method at the smoke inlet of adsorption tower 2 and air-flow velocity situation are all
Good.
The present invention, for ease of controlling air velocity, can make described top board 7 parallel with the first deflector 4, base plate 8 is led with second
Stream plate 5 is parallel.
The present invention, for the ease of being connected with exhaust gases passes, can arrange adpting flange 14 in smoke inlet 3 periphery.
Claims (5)
1. adsorption tower smoke inlet guiding device it is characterised in that: include current stabilization piece housing (1), current stabilization piece housing (1) one end
It is connected with the smoke inlet of adsorption tower (2), current stabilization piece housing (1) other end setting smoke inlet (3) relative with adsorption tower (2),
First deflector (4) is installed successively, second is led by adsorption tower (2) top to adsorption tower (2) bottom direction in current stabilization piece housing (1)
Stream plate (5) and the 3rd deflector (6), the level height near adsorption tower (2) one end for the first deflector (4) is higher than near smoke inlet
(3) one end, the second deflector (5) and the 3rd deflector (6) near adsorption tower (2) one end level height be below near enter cigarette
Mouth (3) one end, the first deflector (4) two ends are connected with first level guide plate (11) and the second horizontal guide plate (12) respectively, and the 3rd
Deflector (6) is connected with the 3rd horizontal guide plate (13) near one end of smoke inlet (3), and the first deflector (4) is and horizontal plane between
The angle of angle α be 15 ° -25 °, the angle of angle β and horizontal plane between for the second deflector (5) is 5 ° -10 °, the
The angle of angle γ and horizontal plane between for three deflectors (6) is 15 ° -25 °.
2. the adsorption tower smoke inlet guiding device according to claim 1 it is characterised in that: current stabilization piece housing (1) bag
Include top board (7), base plate (8) and be arranged on top board (7) and base plate (8) side the first side plate (9) and be arranged on top board (7) and
Second side plate (10) of base plate (8) opposite side, the first deflector (4), the second deflector (5) and the 3rd deflector (6) both sides are divided
It is not connected with the first side plate (9) and the second side plate (10).
3. the adsorption tower smoke inlet guiding device according to claim 1 it is characterised in that: the first deflector (4) with
The angle of the angle α between horizontal plane is 20 °, and the angle of angle β and horizontal plane between for the second deflector (5) is 8 °, the
The angle of angle γ and horizontal plane between for three deflectors (6) is 20 °.
4. the adsorption tower smoke inlet guiding device according to claim 2 it is characterised in that: top board (7) is led with first
Stream plate (4) is parallel, and base plate (8) is parallel with the second deflector (5).
5. the adsorption tower smoke inlet guiding device according to claim 1 it is characterised in that: smoke inlet (3) periphery sets
Put adpting flange (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410254641.XA CN104056548B (en) | 2014-06-10 | 2014-06-10 | Flow guiding device for flue gas inlet of adsorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410254641.XA CN104056548B (en) | 2014-06-10 | 2014-06-10 | Flow guiding device for flue gas inlet of adsorption tower |
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| Publication Number | Publication Date |
|---|---|
| CN104056548A CN104056548A (en) | 2014-09-24 |
| CN104056548B true CN104056548B (en) | 2017-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410254641.XA Active CN104056548B (en) | 2014-06-10 | 2014-06-10 | Flow guiding device for flue gas inlet of adsorption tower |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104624015A (en) * | 2015-01-28 | 2015-05-20 | 东华大学 | Denitration test device for tunnels or metros |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202146716U (en) * | 2011-07-22 | 2012-02-22 | 南京龙玖环境工程有限公司 | Circulating fluidized bed desulfurizing tower with long circular cross section |
| CN102721074A (en) * | 2012-06-12 | 2012-10-10 | 西安交通大学 | Sharp variable cross-section equivalent flow rate flow equalizing passage |
| CN203886403U (en) * | 2014-06-10 | 2014-10-22 | 济钢集团国际工程技术有限公司 | Smoke inlet guiding device of adsorption tower |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008207097A (en) * | 2007-02-26 | 2008-09-11 | Mitsubishi Heavy Ind Ltd | Exhaust gas purification apparatus, regeneration method of exhaust gas purification apparatus and exhaust gas purification method |
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- 2014-06-10 CN CN201410254641.XA patent/CN104056548B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202146716U (en) * | 2011-07-22 | 2012-02-22 | 南京龙玖环境工程有限公司 | Circulating fluidized bed desulfurizing tower with long circular cross section |
| CN102721074A (en) * | 2012-06-12 | 2012-10-10 | 西安交通大学 | Sharp variable cross-section equivalent flow rate flow equalizing passage |
| CN203886403U (en) * | 2014-06-10 | 2014-10-22 | 济钢集团国际工程技术有限公司 | Smoke inlet guiding device of adsorption tower |
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| CN104056548A (en) | 2014-09-24 |
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