CN208990520U - A kind of SCR multichannel reducing agent mixing regulating device - Google Patents
A kind of SCR multichannel reducing agent mixing regulating device Download PDFInfo
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- CN208990520U CN208990520U CN201821664498.1U CN201821664498U CN208990520U CN 208990520 U CN208990520 U CN 208990520U CN 201821664498 U CN201821664498 U CN 201821664498U CN 208990520 U CN208990520 U CN 208990520U
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- flue
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- reducing agent
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Abstract
The utility model relates to a kind of SCR multichannel reducing agents to mix regulating device, including flue, channel partition is provided in the flue, the inner space of flue is separated into the channel of multiple parallel connections by the channel partition, support construction is provided in the flue, the support construction is divided into multiple cross hang by channel partition, each channel interior is equipped with a cross hang, the cross hang is provided with adjustable axial vane chip architecture, the adjustable axial direction plays vane chip architecture and is connect by adjusting rod with regulating device, the adjusting rod is mounted on flue.The utility model has the advantages that spraying into reducing agent using multichannel, rotation is played using the axial direction of flue gas, is sufficiently mixed the reducing agent of flue gas and penetrating, simultaneously, each channel has certain air flow rate regulatory function, is uniformly distributed flue interior air-flow, and then improve denitration efficiency and reduce the escaping of ammonia rate.
Description
Technical field
The utility model relates to a kind of SCR multichannel reducing agents to mix regulating device, belong to gas denitrifying technology field.
Background technique
As power industry implements minimum discharge, the emission limits of nitrogen oxides of coal-burning power plant is from 100mg/m3It is adjusted to
50mg/m3.SCR(selective catalytic reduction) technology be nitrogen oxides in effluent removing one of major technique, in minimum discharge
Requirement under, the mode for generalling use the straying quatity for increasing reducing agent ammonia and increasing the catalyst number of plies improves denitration efficiency.So
And when flue gas and the ammonia of penetrating mixing it is uneven when, the straying quatity of ammonia is bigger, caused by the escaping of ammonia rate it is higher, may cause
The problems such as catalyst poisoning, boiler back end ductwork and corrosion dust stratification blocking of air preheater heat-transfer surface.Currently, the solution generallyd use
Certainly mode is that plate flow-guiding structure is arranged in SCR inlet section flue to improve the ammonia and flue gas of penetrating to change flue flow field
Mixability, and then improve denitration efficiency and reduce the escaping of ammonia rate.Above-mentioned plate flow-guiding structure deflector after the installation is completed
Position is fixed, if there is deviation or larger exhaust gas volumn offset design exhaust gas volumn in flow-guiding structure design, plate flow-guiding structure
Diversion effect may be lost, flue interior air-flow is will lead to and is uniformly distributed, so that flue gas and the mixing of the ammonia of penetrating are uneven, finally
Denitration efficiency is greatly lowered.
Utility model content
It is simple, suitable to provide a kind of structure for the shortcomings that technical problem to be solved in the utility model is, overcomes the prior art
Ying Xingqiang, convenient for installation and maintenance, operation SCR easy to operate mix regulating device with multichannel reducing agent.
In order to solve the above technical problems, the utility model provides a kind of SCR multichannel reducing agent mixing regulating device,
Including flue, be provided with channel partition in the flue, the channel partition by the inner space of flue be separated into it is multiple simultaneously
The channel of connection is provided with support construction in the flue, and the support construction is divided into multiple cross hang by channel partition,
Each channel interior is equipped with a cross hang, the cross hang be provided with it is adjustable axial play vane chip architecture, it is described can
It adjusts the axial vane chip architecture that rises to connect by adjusting rod with regulating device, the adjusting rod is mounted on flue.
The adjustable axial direction of the utility model vane chip architecture, regulating device, adjusting rod, support construction are all made of wear-resisting
Metal material or other wear-resistant materials are made；The adjustable axial vane chip architecture that rises has flue gas flow regulatory function；Adjusting rod,
Fixed ring has the function of high temperature resistant, is equipped with seal washer in adjusting rod and flue junction, makes it have sealing function.It will reduction
Agent sprays into region and is divided into multiple independent parallel ports, and the active force for axially being played supination using flue gas in each channel is increased also
Former agent mixes with flue gas effect；Simultaneously by guaranteeing the air-flow stream in each channel to the axial adjustment for playing vane chip architecture
Amount is close to unanimously, guaranteeing that flue interior air-flow is uniformly distributed, so that the nitrogen oxides and reducing agent in flue gas are in catalyst layer
Sufficiently reaction reaches and improves denitration efficiency and reduce the escaping of ammonia rate.
The technical solution that the utility model further limits is:
Further, the flue is in a rectangular parallelepiped shape.
Further, the channel partition includes a lateral partitions and four longitudinal baffles, and four longitudinal baffles are mutual
Parallel arrangement, partition intersects vertically with lateral partitions longitudinally in each.
Further, the support construction includes two transverse support bars and five vertical supporting bars, two cross-braces
Bar is parallel with lateral partitions, and each transverse support bar is fixed on the longitudinal side wall of flue after longitudinal baffle；Five longitudinal directions
Support rod is parallel with longitudinal baffle, and each vertical supporting bar is fixed in the lateral sidewalls of flue after lateral partitions；It is described
Transverse support bar intersects vertically with vertical supporting bar.
Further, it includes fixed ring that the adjustable axial direction, which plays vane chip architecture, is equipped in the fixed ring several
A axial direction being evenly distributed plays vane piece.
Further, it includes arc ontology that the axial direction, which plays vane piece, and the cross-sectional width of the arc ontology is from bottom to top
Gradually broaden.
Further, the arc ontology includes top margin and bottom edge, one end of the top margin and corresponding bottom edge one end it
Between connect first side, second side, the top margin, bottom are connected between the other end of the top margin and the corresponding bottom edge other end
Side is arc-shaped, and the first side, second side are bevel edge, and the inclined direction phase of the first side and second side
Together, the tilt angle of the first side is greater than the tilt angle of second side.
Further, it bends inwards in the root side that the axial direction plays vane piece；The axial direction plays the tip of vane piece
It is unfolded outward relative to its root.
Further, the fixed ring is arranged below cross hang.
Further, the regulating device is swing handle.
Compared with prior art, the utility model has the advantages that spraying into reducing agent using multichannel, the axial direction of flue gas is utilized
Rotation is played, the reducing agent of flue gas and penetrating is sufficiently mixed, meanwhile, each channel has certain air flow rate regulatory function, makes flue
Interior air-flow is uniformly distributed, and then is improved denitration efficiency and reduced the escaping of ammonia rate.
Detailed description of the invention
Following drawings are only intended to schematically illustrate and explain the present invention, does not limit the model of the utility model
It encloses.
Fig. 1 is the structural schematic diagram of the utility model one embodiment.
Fig. 2 is the top view of the utility model one embodiment.
Fig. 3 is the front view of the utility model one embodiment.
Fig. 4 is the left view of the utility model one embodiment.
In figure: 1. channel partitions, 2. adjustable axial vane chip architectures, 3. regulating devices, 4. adjusting rods, 5. supports
Structure, 6. flues, 11. lateral partitions, 12. longitudinal baffles, 21. fixed rings, 22. axial vane pieces, 51. transverse support bars,
52. vertical supporting bar.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is further described.In the following detailed description, only pass through
Bright mode describes certain exemplary embodiments of the utility model.Undoubtedly, those skilled in the art can be with
It recognizes, it, can be with a variety of different modes to described without departing from the spirit and scope of the utility model
Embodiment is modified.Therefore, attached drawing and description are regarded as illustrative in nature, rather than the protection for limiting claim
Range.
Embodiment one
As shown in Figures 1 to 4, a kind of SCR multichannel reducing agent mixes regulating device, including channel partition 1, adjustable
Axial vane chip architecture 2, regulating device 3, adjusting rod 4, support construction 5 and flue 6, adjustable axial vane chip architecture 2,
Regulating device 3, adjusting rod 4, support construction 5 are all made of wear-resistant metal material or other wear-resistant materials are made, and flue 6 is in cuboid
Shape.It is provided with channel partition 1 in flue 6, channel partition 1 includes a lateral partitions 11 and four longitudinal baffles 12, and four
Longitudinal baffle 12 is arranged parallel, and partition 12 intersects vertically with lateral partitions 11 longitudinally in each.Lateral partitions 11 and it is longitudinal every
The inner space of flue 6 is separated into ten channels in parallel by plate 12, and support construction 5, support construction 5 are provided in flue 6
Ten cross hang are divided by channel partition 1, each channel interior is equipped with a cross hang, and cross hang is provided with adjustable
Nodal axisn is connect by adjusting rod 4 with regulating device 3 to vane chip architecture 2, the adjustable axial vane chip architecture 2 that rises is played, and adjusts dress
3 are set as swing handle, adjusting rod 4 is mounted on flue 6.
Support construction 5 includes two transverse support bars 51 and five vertical supporting bars 52, two transverse support bars 51 and cross
It is parallel to partition 11, and each transverse support bar 51 is fixed on the longitudinal side wall of flue 6 after longitudinal baffle 12；Five longitudinal directions
Support rod 52 is parallel with longitudinal baffle 12, and each vertical supporting bar 52 is fixed on the cross side of flue 6 after lateral partitions 11
On wall；Transverse support bar 51 intersects vertically with vertical supporting bar 52.
The adjustable axial vane chip architecture 2 that rises has flue gas flow regulatory function.The adjustable axial vane chip architecture 2 that rises is wrapped
Fixed ring 21 is included, fixed ring 21 is arranged below cross hang.The axial direction being evenly distributed there are three setting in fixed ring 21 rises
Vane piece 22.The axial vane piece 22 that rises includes arc ontology, and the cross-sectional width of arc ontology gradually broadens from bottom to top.Arc sheet
Body includes top margin and bottom edge, connects first side between one end of top margin and corresponding bottom edge one end, the other end of top margin with it is right
Second side is connected between the bottom edge other end answered, top margin, bottom edge are arc-shaped, and first side, second side are bevel edge, and the
A side is identical as the inclined direction of second side, and the tilt angle of first side is greater than the tilt angle of second side.It is axial
The root for playing vane piece 22 is fixed in fixed ring 21, is bent inwards in the root side for axially playing vane piece 22, axial to play rotation
It is unfolded outward relative to its root the tip of blade 22.
In addition, adjusting rod 4, fixed ring 21 have the function of high temperature resistant, gasket is equipped in adjusting rod 4 and 6 junction of flue
Circle, makes it have sealing function.
In actual use, SCR is located at reductant injection system downstream with multichannel reducing agent mixing regulating device, also
After former agent sprays into flue gas, immediately enter in ten independent parallel ports of the device, adjustable nodal axisn of the flue gas in each channel
Rotation is axially played under the action of vane chip architecture 2 to rising, and the active force that flue gas axially plays supination strengthens mixing for reducing agent and flue gas
Cooperation is used；The axial blade angle for playing vane piece 22 is adjusted by regulating device 3 simultaneously, to change the part resistance in each channel
Power, so that the exiting flue gas amount in each channel of the device is uniform, guarantees cigarette so that the local resistance of each parallel port is convergent
Road interior air-flow is uniformly distributed, so that the nitrogen oxides in flue gas is sufficiently reacted with reducing agent in catalyst layer, reaches raising
Denitration efficiency simultaneously reduces the escaping of ammonia rate.
In addition to the implementation, the utility model can also have other embodiments.It is all to use equivalent replacement or equivalent change
The technical solution to be formed is changed, the protection scope of the requires of the utility model is all fallen within.
Claims (10)
1. a kind of SCR mixes regulating device with multichannel reducing agent, it is characterised in that: including flue (6), in the flue (6)
It being inside provided with channel partition (1), the inner space of flue (6) is separated into the channel of multiple parallel connections by the channel partition (1),
It is provided with support construction (5) in the flue (6), the support construction (5) is divided into multiple cross-shapeds by channel partition (1)
Support, each channel interior are equipped with a cross hang, and the cross hang is provided with adjustable axial vane chip architecture (2),
The adjustable axial direction plays vane chip architecture (2) and is connect by adjusting rod (4) with regulating device (3), adjusting rod (4) installation
On flue (6).
2. a kind of SCR mixes regulating device with multichannel reducing agent according to claim 1, it is characterised in that: the flue
(6) in a rectangular parallelepiped shape.
3. a kind of SCR mixes regulating device with multichannel reducing agent according to claim 2, it is characterised in that: the channel
Partition (1) includes a lateral partitions (11) and four longitudinal baffles (12), and four longitudinal baffles (12) are arranged parallel, often
A longitudinal baffle (12) intersects vertically with lateral partitions (11).
4. a kind of SCR mixes regulating device with multichannel reducing agent according to claim 3, it is characterised in that: the support
Structure (5) includes two transverse support bar (51) He Wugen vertical supporting bars (52), two transverse support bars (51) and laterally every
Plate (11) in parallel, and each transverse support bar (51) pass through longitudinal baffle (12) after be fixed on the longitudinal side wall of flue (6)；Five
Vertical supporting bar (52) is parallel with longitudinal baffle (12), and each vertical supporting bar (52) is fixed on cigarette after lateral partitions (11)
In the lateral sidewalls in road (6)；The transverse support bar (51) intersects vertically with vertical supporting bar (52).
5. a kind of SCR mixes regulating device with multichannel reducing agent according to claim 4, it is characterised in that: described adjustable
Nodal axisn includes fixed ring (21) to vane chip architecture (2) are played, and is equipped with what several were evenly distributed on the fixed ring (21)
It is axial to play vane piece (22).
6. a kind of SCR mixes regulating device with multichannel reducing agent according to claim 5, it is characterised in that: the axial direction
Playing vane piece (22) includes arc ontology, and the cross-sectional width of the arc ontology gradually broadens from bottom to top.
7. a kind of SCR mixes regulating device with multichannel reducing agent according to claim 6, it is characterised in that: the arc
Ontology includes top margin and bottom edge, and first side is connected between one end of the top margin and corresponding bottom edge one end, the top margin
Second side is connected between the other end and the corresponding bottom edge other end, the top margin, bottom edge are arc-shaped, the first side,
Second side is bevel edge, and the first side is identical as the inclined direction of second side, the tilt angle of the first side
Greater than the tilt angle of second side.
8. a kind of SCR mixes regulating device with multichannel reducing agent according to claim 7, it is characterised in that: in the axis
It bends inwards to the root side for playing vane piece (22)；The axial direction plays the tip of vane piece (22) relative to its root to outreach
It opens.
9. a kind of SCR mixes regulating device with multichannel reducing agent according to claim 8, it is characterised in that: the fixation
Ring (21) is arranged below cross hang.
10. a kind of SCR mixes regulating device with multichannel reducing agent according to claim 9, it is characterised in that: the adjusting
Device (3) is swing handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821664498.1U CN208990520U (en) | 2018-10-15 | 2018-10-15 | A kind of SCR multichannel reducing agent mixing regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821664498.1U CN208990520U (en) | 2018-10-15 | 2018-10-15 | A kind of SCR multichannel reducing agent mixing regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208990520U true CN208990520U (en) | 2019-06-18 |
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ID=66803858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821664498.1U Active CN208990520U (en) | 2018-10-15 | 2018-10-15 | A kind of SCR multichannel reducing agent mixing regulating device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252168A (en) * | 2019-07-15 | 2019-09-20 | 国电龙源节能技术有限公司 | Short mixing is apart from flue spray ammonia static mixing device |
-
2018
- 2018-10-15 CN CN201821664498.1U patent/CN208990520U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252168A (en) * | 2019-07-15 | 2019-09-20 | 国电龙源节能技术有限公司 | Short mixing is apart from flue spray ammonia static mixing device |
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