CN208122919U - A kind of rotating flow guidance manages the mixing arrangement of horizontal combination with hole - Google Patents
A kind of rotating flow guidance manages the mixing arrangement of horizontal combination with hole Download PDFInfo
- Publication number
- CN208122919U CN208122919U CN201721913525.XU CN201721913525U CN208122919U CN 208122919 U CN208122919 U CN 208122919U CN 201721913525 U CN201721913525 U CN 201721913525U CN 208122919 U CN208122919 U CN 208122919U
- Authority
- CN
- China
- Prior art keywords
- baffle
- hole
- urea
- mixing arrangement
- flow deflector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 33
- 239000004202 carbamide Substances 0.000 claims abstract description 33
- 238000002347 injection Methods 0.000 claims abstract description 14
- 239000007924 injection Substances 0.000 claims abstract description 14
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000009792 diffusion process Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 5
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 210000002700 urine Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 239000007921 spray Substances 0.000 abstract description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 10
- 239000008187 granular material Substances 0.000 description 6
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model relates to diesel engine vent gas to post-process field, and the mixing arrangement of horizontal combination is managed in specially a kind of rotating flow guidance and hole, including：Cylinder, the cylinder is interior to be arranged perforated pipe, and the tail end connection diffusion cone-plate of hole pipe, hole pipe front end is provided with gas flow guiding mechanism；Gas flow guiding mechanism includes air flap, baffle, flow deflector and outlet baffle, air flap is arranged in flow deflector front end, flow deflector rear end connects outlet baffle, in the outer circumferential walls of flow deflector, axially it is provided with flow deflector, open up jagged on air flap, the upper end-face edge of outlet baffle offers a card slot, and the center of outlet baffle is provided with circular hole；The outer wall of hole pipe is provided with a urea and gathers baffle, and urea gathers in the cavity of baffle formation, and injection pedestal is provided on the outer wall of hole pipe, and injection pedestal is obliquely installed, and sprays and is fixed with urea nozzle in base center.Mixing arrangement provided by this is practical, urea good mixing effect, urea are not easy to crystallize, which can ensure that SCR is capable of the work of efficient stable.
Description
Technical field
The utility model belongs to diesel engine vent gas post-processing field more particularly to a kind of rotating flow guidance for spar-type platforms
The mixing arrangement of horizontal combination is managed with hole.
Background technique
With the reinforcement of people's environmental protection consciousness, national exhaust gas from diesel vehicle pollutant emission regulation is more stringent.Strictly
Requirement of the emission regulation to exhaust pollutant it is harsher.In six stage of Europe, the NOX processing scheme that the country generallys use is
SCR technology.The principle of SCR technology is to decompose the NH3 generated using urea to react generation with NOX under the effect of the catalyst
N2, thus reduce exhaust in pair XOx, by vent gas treatment to the discharge standard for meeting Europe six.And there are low temperature for aqueous solution of urea
The problems such as crystallization.
Therefore, how to reduce the low temperature crystallization of urea and ammonia is uniformly taken to SCR carrier end face to as in SCR technology
Key link.The problems such as existing structure is easy crystallization and uneven ammonia mixing there are urea.
In view of above content, it is necessary to provide the device that a kind of urea is not easy crystallization and ammonia is uniformly mixed.
Summary of the invention
The utility model is to provide a kind of rotating flow guidance and hole pipe is horizontal in place of avoiding above-mentioned the shortcomings of the prior art
In conjunction with mixing arrangement, including：
Cylinder, the cylinder is interior to be arranged perforated pipe, and the tail end connection diffusion cone-plate of the hole pipe, hole pipe front end is provided with gas
Body deflector；
The gas flow guiding mechanism includes air flap, baffle, flow deflector and outlet baffle, the flow deflector front end setting
Air flap, the flow deflector rear end connection outlet baffle are axially provided with flow deflector in the outer circumferential walls of flow deflector, institute
It states and opens up jagged on air flap, the upper end-face edge of the outlet baffle offers a card slot, the center of the outlet baffle
It is provided with circular hole；
The outer wall of the hole pipe is provided with a urea and gathers baffle, and the urea gathers baffle by first baffle, second gear
Plate and third baffle are constituted, and one end and one end of third baffle of the first baffle and the both ends of second baffle are connected, described
The other end of first baffle and the other end of third baffle are connected with outlet baffle；
The urea gathers in the cavity of baffle formation, and injection pedestal, the injection bottom are provided on the outer wall of hole pipe
Seat is obliquely installed, and is fixed with urea nozzle in the injection base center,
Improvement to above-mentioned technical proposal：The sheet body of flow deflector helically winding method.
Improvement to above-mentioned technical proposal：Urea nozzle is fixed by screws on injection pedestal.
Improvement to above-mentioned technical proposal：Multiple apertures in matrix distribution are provided on hole pipe and diffusion cone-plate.
Improvement to above-mentioned technical proposal：Notch is arc-shaped, and the card slot is in U-shape.
The beneficial effects of the utility model are：
1, airflow direction is consistent with eddy flow tube axis direction arranges, air-flow enters to form very strong eddy flow effect from partition notch
On the one hand urea granules and tail gas are quickly sufficiently mixed by fruit, improve ammonia mixing uniformity, on the other hand increase air velocity
Add, can quickly take away the urea granules ejected, prevent urea crystals from generating；
2, after cyclone pipe is horizontal urea granules can mix in Kong Guanzhong, make the space compression of entire mixer, entirely
Mixer structure is more compact.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the utility model mixing arrangement.
Fig. 2 is the schematic perspective view of the utility model mixing arrangement.
The schematic diagram of the gas flow guiding mechanism of Fig. 3 the utility model mixing arrangement.
The schematic diagram that the urea of Fig. 4 the utility model mixing arrangement is mixed with tail gas.
Specific embodiment
Below with reference to specific drawings and examples, the utility model is described in further detail.
As shown in Figs 1-4, arrow is gas traffic direction in figure, and a kind of rotating flow guidance manages the mixing dress of horizontal combination with hole
It sets, which is characterized in that including：Cylinder, the cylinder is interior to be arranged perforated pipe 7, the tail end connection diffusion cone-plate 8 of the hole pipe 7, institute
It states 7 front end of hole pipe and is provided with gas flow guiding mechanism；
The gas flow guiding mechanism includes air flap 2, baffle 13, flow deflector 3 and outlet baffle 4, before the flow deflector 3
End setting air flap 2, the flow deflector rear end connection outlet baffle 4 are axially provided with and lead in the outer circumferential walls of flow deflector
Flow 3 opens up jagged 2.1 on the air flap, and the upper end-face edge of the outlet baffle offers a card slot 4.1, described
The center of outlet baffle is provided with circular hole 4.2；
The outer wall of the hole pipe 7 is provided with a urea and gathers baffle, and the urea gathers baffle by first baffle 9, second
Baffle 10 and the composition of third baffle 11, one end of the first baffle and one end of third baffle and the both ends phase of second baffle
Even, the other end of the first baffle and the other end of third baffle are connected with outlet baffle；
The urea gathers in the cavity of baffle formation, and injection pedestal, the injection bottom are provided on the outer wall of hole pipe 7
Seat is obliquely installed, and is fixed with urea nozzle 5 in the injection base center,
Improvement to above-mentioned technical proposal：The sheet body of flow deflector 3 helically winding method.
Improvement to above-mentioned technical proposal：Urea nozzle is fixed by screws on injection pedestal 6.Remaining part is metal plate
Golden punch forming, and by being welded.
Improvement to above-mentioned technical proposal：Multiple apertures 12 in matrix distribution are provided on hole pipe 7 and diffusion cone-plate 8.
Improvement to above-mentioned technical proposal：Notch 2.1 is arc-shaped, and the card slot 4.1 is in U-shape.
Concrete operating principle is：Air-flow is by the notch on air flap 2, into flow deflector 3, according to the water conservancy diversion of flow deflector
Effect, forms extremely strong diversion effect, 4 center of outlet baffle is provided with circular hole, and swirling eddy is finally from the centre bore of outlet baffle 4
Middle rotation and go out, air-flow out is with very strong rotates effe, and air velocity also obviously increases, which sprays urea
The urea granules that mouth ejects are sufficiently mixed with tail gas, and rapidly take away hole pipe 7, have small part urea granules under hole pipe 7
The hole in portion leaks, and after gas comes out in the card slot of outlet baffle, directly the urea granules of leakage are brought to the front end SCR,
It prevents from crystallizing on cylinder.
It should be noted last that the above specific embodiment is only to illustrate the technical solution of the utility model rather than limits
System, although the utility model is described in detail referring to example, those skilled in the art should understand that, it can be right
The technical solution of the utility model is modified or replaced equivalently, without departing from the spirit and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (5)
1. the mixing arrangement that horizontal combination is managed in a kind of rotating flow guidance and hole, which is characterized in that including：
Cylinder, the cylinder is interior to be arranged perforated pipe（7）, the hole pipe（7）Tail end connection diffusion cone-plate（8）, the hole pipe（7）
Front end is provided with gas flow guiding mechanism；
The gas flow guiding mechanism includes air flap（2）, baffle（13）, flow deflector（3）With outlet baffle（4）, the water conservancy diversion
Piece（3）Air flap is arranged in front end（2）, the flow deflector rear end connects outlet baffle（4）, in the outer circumferential walls of flow deflector,
Axially it is provided with flow deflector（3）, open up on the air flap jagged（2.1）, the upper end-face edge of the outlet baffle opens up
There is a card slot（4.1）, the center of the outlet baffle is provided with circular hole（4.2）；
The outer wall of the hole pipe 7 is provided with a urea and gathers baffle, and the urea gathers baffle by first baffle（9）, second gear
Plate（10）And third baffle（11）Composition, one end of the first baffle and one end of third baffle and the both ends phase of second baffle
Even, the other end of the first baffle and the other end of third baffle are connected with outlet baffle；
The urea gathers in the cavity of baffle formation, manages in hole（7）Outer wall on be provided with injection pedestal, the injection pedestal
It is obliquely installed, is fixed with urea nozzle in the injection base center（5）.
2. the mixing arrangement that horizontal combination is managed in a kind of rotating flow guidance as described in claim 1 and hole, which is characterized in that described to lead
Flow（3）Sheet body helically winding method.
3. the mixing arrangement that horizontal combination is managed in a kind of rotating flow guidance as described in claim 1 and hole, which is characterized in that the urine
Plain nozzle is fixed by screws in injection pedestal（6）On.
4. the mixing arrangement that horizontal combination is managed in a kind of rotating flow guidance as claimed in claim 1 or 2 and hole, which is characterized in that institute
State hole pipe（7）With diffusion cone-plate（8）On be provided with it is multiple in matrix distribution apertures（12）.
5. the mixing arrangement that horizontal combination is managed in a kind of rotating flow guidance as claimed in claim 1 or 2 and hole, which is characterized in that institute
State notch（2.1）It is arc-shaped, the card slot（4.1）It is in U-shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721913525.XU CN208122919U (en) | 2017-12-31 | 2017-12-31 | A kind of rotating flow guidance manages the mixing arrangement of horizontal combination with hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721913525.XU CN208122919U (en) | 2017-12-31 | 2017-12-31 | A kind of rotating flow guidance manages the mixing arrangement of horizontal combination with hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208122919U true CN208122919U (en) | 2018-11-20 |
Family
ID=64209423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721913525.XU Expired - Fee Related CN208122919U (en) | 2017-12-31 | 2017-12-31 | A kind of rotating flow guidance manages the mixing arrangement of horizontal combination with hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208122919U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927602A (en) * | 2020-08-18 | 2020-11-13 | 无锡威孚力达催化净化器有限责任公司 | Mixing device with double cyclone tube cross devices |
| CN114458428A (en) * | 2022-01-05 | 2022-05-10 | 潍柴动力股份有限公司 | SCR mixer and engine |
| CN114961935A (en) * | 2022-07-04 | 2022-08-30 | 潍柴动力股份有限公司 | Preheat urea injection structure and aftertreatment device |
-
2017
- 2017-12-31 CN CN201721913525.XU patent/CN208122919U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111927602A (en) * | 2020-08-18 | 2020-11-13 | 无锡威孚力达催化净化器有限责任公司 | Mixing device with double cyclone tube cross devices |
| CN114458428A (en) * | 2022-01-05 | 2022-05-10 | 潍柴动力股份有限公司 | SCR mixer and engine |
| CN114458428B (en) * | 2022-01-05 | 2023-07-18 | 潍柴动力股份有限公司 | SCR mixer and engine |
| CN114961935A (en) * | 2022-07-04 | 2022-08-30 | 潍柴动力股份有限公司 | Preheat urea injection structure and aftertreatment device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181120 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |