CN205461788U - A flue gas equipartition device for SCR denitration reactor - Google Patents
A flue gas equipartition device for SCR denitration reactor Download PDFInfo
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- CN205461788U CN205461788U CN201620105041.1U CN201620105041U CN205461788U CN 205461788 U CN205461788 U CN 205461788U CN 201620105041 U CN201620105041 U CN 201620105041U CN 205461788 U CN205461788 U CN 205461788U
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- flue gas
- scr denitration
- spoiler
- denitration reactor
- flue
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Abstract
The utility model discloses a flue gas equipartition device for SCR denitration reactor, which comprises flue gas pipeline, spoiler group, the distribution grid, flue gas equipartition device sets up on SCR denitration reactor, SCR denitration reactor and flue gas pipeline are connected, flue gas pipeline bends near SCR denitration reactor's one end and forms the flue elbow, and the inside slope of flue elbow is to having spoiler group, spoiler group is including the spoiler of the equidistant setting of a plurality of parallels, and the interval between the adjacent spoiler is at 300~800mm's within range, the spoiler is 75~100 with the contained angle of horizontal plane, the top of SCR denitration reactor catalyst layer sets up the distribution grid. The utility model discloses a flue gas equipartition device for SCR denitration reactor passes through spoiler group and the cooperation of distribution grid is used, has reduced the pressure loss in the deNOx systems, has improved reaction efficiency, has reduced the energy consumption of system, has reduced the possibility of stifled ash, improves the security of reactor operation.
Description
Technical field
This utility model relates to air contaminant treatment field, a kind of flue gas even distribution device for SCR denitration reactor.
Background technology
According to current market trend, SCR (SCR) technology is the main flow skill that nitrogen oxides (NOx) reduces discharging
Art.SCR technique is to utilize reducing agent (NH3, carbamide), at catalyst and O2In the presence of, optionally NOx is reduced to
N2And H2O.Due to NH3Higher as reducing agent selectivity and removal efficiency, so, NH3-SCR be presently the most maturation,
Efficient and most widely used SCR technology.
In order to ensure catalytic efficiency, it is uniformly one of key factor that flue gas and reducing agent are sufficiently mixed.At present in prior art
In SCR flue gas denitrification system, the designs using deflector to add cowling panel: the flue gas of coke oven etc. enters de-through economizer more
Nitre reactor, enters cowling panel through tradition deflector water conservancy diversion after mixing homogeneously with reducing agent, and through this process, flue gas is with relatively
Beds is entered for uniform velocity field.If arranging cowling panel in Benitration reactor, owing to cowling panel is opened as mentioned above
Hole is intensive, and makes voltage loss relatively big, and can directly result in denitrating system energy consumption increases, additionally, cowling panel once stifled ash,
Crushing will drastically raise, and air flow method will be the most uneven, have a strong impact on the denitration efficiency of reactor.If stifled ash is serious,
Boiler malleation then can be caused to cause accident to occur.
Utility model content
The purpose of this utility model is to provide a kind of flue gas even distribution device for SCR denitration reactor, to solve the above-mentioned back of the body
The problem proposed in scape technology.
For achieving the above object, the following technical scheme of this utility model offer:
A kind of flue gas even distribution device for SCR denitration reactor, it is characterised in that include flue, spoiler group,
Distribution grid, described flue gas even distribution device is arranged on SCR denitration reactor, described SCR denitration reactor and flue
Connecting, described flue is formed inside smoke canal elbow, and described smoke canal elbow near one end bending of SCR denitration reactor
Being provided with spoiler group diagonally downward, described spoiler group includes multiple parallel spoiler arranged at equal intervals, and adjacent described in disturb
Being spaced in the range of 300～800mm between stream plate, the angle of described spoiler and horizontal plane is 75 °～100 °, institute
Stating the distribution grid that is provided above of SCR denitration reactor catalysis oxidant layer, described distribution grid is the net of height 300～400mm
Sieve, the sizing grid of described distribution grid is (80～120) * (80～120) mm.
Preferably, being spaced in the range of 450～800mm between adjacent described spoiler.
Preferably, described spoiler is 85 °～95 ° with the angle of horizontal plane.
Preferably, the sizing grid of described distribution grid is 100*100mm.
Preferably, the interval between adjacent described spoiler gradually broadens from smoke canal elbow Inside To Outside.
Compared with prior art, the beneficial effects of the utility model are:
Flue gas even distribution device for SCR denitration reactor of the present utility model is coordinated by spoiler group and distribution grid to be made
With, reduce the crushing in denitrating system, improve reaction efficiency, decrease the energy consumption of system.And, it is arranged on flue
The spoiler group of elbow reduces the probability of stifled ash such that it is able to improve the safety that reactor runs.Distribution grid makes
In reactor, flue gas is by the middle section of Relatively centralized to the poor regional diffusion of surrounding smoke distribution, makes flue gas equal in reactor
Even distribution.This utility model simple in construction, easy to use, low cost, effective, be suitable to promote.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is spoiler group profile of the present utility model.
In figure: 1-flue, 2-spoiler group, 3-distribution grid, 4-beds, 5-SCR Benitration reactor.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clearly
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
Refer to Fig. 1, in this utility model embodiment, a kind of flue gas even distribution device for SCR denitration reactor, including
Flue 1, spoiler group 2, distribution grid 3, described flue gas even distribution device is arranged on SCR denitration reactor 5, institute
Stating SCR denitration reactor 5 to be connected with flue 1, described flue 1 is rolled near one end of SCR denitration reactor 5
Bending becomes smoke canal elbow, and described smoke canal elbow inner inclination is to having spoiler group 2, and described spoiler group 2 includes many
The individual parallel spoiler arranged at equal intervals, and be spaced in the range of 450～800mm between adjacent spoiler, described in disturb
The angle of stream plate and horizontal plane is 85 °～95 °, the quantity of spoiler number, the interval impact between the most adjacent spoiler
Crushing and the performance of SCR denitration reactor, quantity is the most, is spaced the least, then crushing is the biggest, otherwise, quantity is very few,
It is spaced excessive, does not then have the effect of uniform flue gas.For this point, inventor finds through research, by disturbing adjacent
Interval between stream plate is set in the range of 450～800mm, can realize ideal while suppression crushing increases
Flue gas water conservancy diversion, uniform effect.
In the present embodiment, each spoiler is evenly arranged at equal intervals, but can also make as required between each spoiler
Interval different, such as gradually broaden to curved outside from curved interior.
Described SCR denitration reactor catalysis oxidant layer be provided above distribution grid 3, described distribution grid 3 be height 300～
The mesh screen of 400mm, the sizing grid of described distribution grid 3 is (80～120) * (80～120) mm, it is preferable that described
The sizing grid of distribution grid is 100*100mm.
Operation principle of the present utility model is: the flue gas of coke oven etc. enters from flue 1, with reduction in flue 1
After agent mix homogeneously, entering SCR denitration reactor 5 after spoiler group 2 flows out, flue gas is led by distribution grid 3
Stream and uniform, makes flue gas be directly entered beds 4 after being uniformly distributed through distribution grid 3, equally distributed flue gas with urge
Agent bed 4 is fully contacted, at NH3And O2In the presence of, optionally by NOXIt is reduced to N2And H2O.Thus, flow-disturbing is used
Plate group 2 adds the flue gas even distribution device of distribution grid 3, reduces the crushing in denitrating system, improves reaction efficiency, reduces
The energy consumption of system.And, it is arranged on the spoiler group at smoke canal elbow and reduces the probability of stifled ash such that it is able to improve
The safety that reactor runs.Distribution grid make reactor in flue gas by the middle section of Relatively centralized to surrounding smoke distribution relatively
Difference regional diffusion, makes flue gas be uniformly distributed in reactor.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of spirit or essential attributes of the present utility model, it is possible to realize this utility model in other specific forms.
Therefore, no matter from the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, this practicality is new
The scope of type is limited by claims rather than described above, it is intended that by the containing of equivalency in claim that fall
All changes in justice and scope are included in this utility model.Should not be considered as any reference in claim limiting
Involved claim.
Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only comprises
One independent technical scheme, this narrating mode of description is only the most for clarity sake, and those skilled in the art should be by
Description is as an entirety, and the technical scheme in each embodiment can also be through appropriately combined, and forming those skilled in the art can
With other embodiments understood.
Claims (5)
1. the flue gas even distribution device for SCR denitration reactor, it is characterised in that include flue, spoiler
Group, distribution grid, described flue gas even distribution device is arranged on SCR denitration reactor, described SCR denitration reactor and flue gas
Pipeline connects, and described flue forms smoke canal elbow, and described smoke canal elbow near one end bending of SCR denitration reactor
Inner inclination is to having spoiler group, and described spoiler group includes multiple parallel spoiler arranged at equal intervals, and adjacent institute
Stating and be spaced in the range of 300～800mm between spoiler, described spoiler is 75 °～100 ° with the angle of horizontal plane,
Described SCR denitration reactor catalysis oxidant layer be provided above distribution grid, described distribution grid be height 300～400mm
Mesh screen, the sizing grid of described distribution grid is (80～120) * (80～120) mm.
Flue gas even distribution device for SCR denitration reactor the most according to claim 1, it is characterised in that adjacent
Being spaced in the range of 450～800mm between described spoiler.
Flue gas even distribution device for SCR denitration reactor the most according to claim 1, it is characterised in that described
Spoiler is 85 °～95 ° with the angle of horizontal plane.
Flue gas even distribution device for SCR denitration reactor the most according to claim 1, it is characterised in that described
The sizing grid of distribution grid is 100*100mm.
Flue gas even distribution device for SCR denitration reactor the most according to claim 1, it is characterised in that adjacent
Interval between described spoiler gradually broadens from smoke canal elbow Inside To Outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620105041.1U CN205461788U (en) | 2016-01-29 | 2016-01-29 | A flue gas equipartition device for SCR denitration reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620105041.1U CN205461788U (en) | 2016-01-29 | 2016-01-29 | A flue gas equipartition device for SCR denitration reactor |
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| Publication Number | Publication Date |
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| CN205461788U true CN205461788U (en) | 2016-08-17 |
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| CN201620105041.1U Active CN205461788U (en) | 2016-01-29 | 2016-01-29 | A flue gas equipartition device for SCR denitration reactor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106731797A (en) * | 2016-12-24 | 2017-05-31 | 北京工业大学 | A kind of efficient SCR reactors of flaring entrance |
| CN106975354A (en) * | 2017-05-15 | 2017-07-25 | 成都中祥天宇环保科技有限公司 | A kind of denitration reaction tower of low air flow resistance |
| CN109884241A (en) * | 2019-03-05 | 2019-06-14 | 华电电力科学研究院有限公司 | A kind of SCR denitration simulation reaction device and analogy method |
-
2016
- 2016-01-29 CN CN201620105041.1U patent/CN205461788U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106731797A (en) * | 2016-12-24 | 2017-05-31 | 北京工业大学 | A kind of efficient SCR reactors of flaring entrance |
| CN106975354A (en) * | 2017-05-15 | 2017-07-25 | 成都中祥天宇环保科技有限公司 | A kind of denitration reaction tower of low air flow resistance |
| CN109884241A (en) * | 2019-03-05 | 2019-06-14 | 华电电力科学研究院有限公司 | A kind of SCR denitration simulation reaction device and analogy method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180322 Address after: 433226 Jingzhou City, Honghu, China Town, the city of road, No. 23 Patentee after: HUBEI SIBOYING ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD. Address before: 230001 Anhui Hefei high tech Zone Innovation Avenue 2800 Hefei innovation industrial park two phase F1 building 202, 203 Patentee before: Hefei Chen Xi Ingegneria Ambientale SRL |
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| TR01 | Transfer of patent right |