CN206016913U - A kind of swirl vane formula carbamide sprays mixed cell - Google Patents
A kind of swirl vane formula carbamide sprays mixed cell Download PDFInfo
- Publication number
- CN206016913U CN206016913U CN201620985673.1U CN201620985673U CN206016913U CN 206016913 U CN206016913 U CN 206016913U CN 201620985673 U CN201620985673 U CN 201620985673U CN 206016913 U CN206016913 U CN 206016913U
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- China
- Prior art keywords
- swirl vane
- urea
- carbamide
- blender
- mixing tube
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- 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
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Abstract
This utility model is related to a kind of swirl vane formula carbamide injection mixed cell, including urea mixing tube, expansion pipe, swirl vane blender, auxiliary mixer and urea nozzle, the upper end of urea mixing tube is provided with swirl vane blender, swirl vane blender is in cone, several swirl vanes are evenly arranged with the taper seat of swirl vane blender, the lower end of urea mixing tube is provided with expansion pipe, swirl vane blender is internally provided with auxiliary mixer, the top of auxiliary mixer is provided with some projections, the top of auxiliary mixer is provided with carbamide injection base, urea nozzle is arranged on carbamide injection base.This utility model simple structure, compact to design, easy to use, swirl vane blender is sufficiently mixed urea liquid, can make airflow diversion using auxiliary mixer, reduces the flow perturbation near urea nozzle, urea crystals are prevented, the mixed effect of urea liquid and air-flow is improve.
Description
Technical field
This utility model is related to a kind of swirl vane formula carbamide injection mixed cell, belongs to vehicle exhaust after-treatment device skill
Art field.
Background technology
With China's implementing in full with regard to the state four standard of restriction exhaust gas from diesel vehicle pollutant emission, SCR（Selectivity is also
Former catalyst converter）Technology is increasingly becoming the vent gas treatment route that Ge great engine works of China and post processing supplier select.SCR technology
The noble metal such as coating platinum, palladium i.e. on carrier, sprays into urea liquid in tail gas, when the tail gas for being mixed with urea liquid enters catalysis
NOx in tail gas is greatly lowered under the catalysis of the noble metals such as platinum, palladium by agent, so as to realize vent gas treatment to meeting state
Four and above discharge standard.
Urea liquid is exactly sufficiently mixed by one crucial technology of SCR technology with air, evenly into SCR end faces,
And urea liquid has the characteristic for meeting low temperature easily crystallization.Therefore original design exist urea liquid mix with tail gas uneven, urinate
The problem that element is easily crystallized on the mixer.And integrated level is not high, it is difficult to meet state five, six box post-process nozzle of state integrated,
The requirement of compact conformation.
Content of the invention
The purpose of this utility model is to solve urea liquid in existing blender and mix uneven, carbamide with tail gas to exist
A kind of problem of easily crystallization on blender, there is provided simple structure, swirl vane formula carbamide injection mixing compact to design are single
Unit.
This utility model is adopted the following technical scheme that：A kind of swirl vane formula carbamide sprays mixed cell, mixed including carbamide
Pipe, expansion pipe, swirl vane blender, auxiliary mixer and urea nozzle is closed, the upper end of the urea mixing tube is provided with rotation
Stream blade mixer, the swirl vane blender are evenly arranged with the bottom surface of the swirl vane blender in cone
Several swirl vanes, the lower end of the urea mixing tube are provided with expansion pipe, and the inside of the swirl vane blender is arranged
The top for having auxiliary mixer, the auxiliary mixer is provided with some projections, and the top of the auxiliary mixer is provided with urine
Element injection base, the urea nozzle are arranged on carbamide injection base.
Further, heat shield is provided with the outside of the urea mixing tube.
Further, heat-preservation cotton carpet veneer is provided between the heat shield and urea mixing tube.
Further, the swirl vane is provided with 12-15.
Further, the swirl vane along swirl vane blender axis both clockwise arrange, the swirl vane with
The axis angle of swirl vane blender is 60-70 ° °.
Further, lower end knuckle of the upper end knuckle of the swirl vane less than swirl vane.
Further, air inlet is provided with the projection of the auxiliary mixer.
This utility model simple structure, compact to design, easy to use, swirl vane blender makes urea liquid fully mix
Close, airflow diversion can be made using auxiliary mixer, reduce the flow perturbation near urea nozzle, prevent urea crystals, improve
The mixed effect of urea liquid and air-flow.
Description of the drawings
Fig. 1 is external structure schematic diagram of the present utility model.
Fig. 2 is internal structure schematic diagram of the present utility model.
Air-flow when Fig. 3 is utility model works moves towards schematic diagram.
Fig. 4 is top view of the present utility model.
Reference：Urea nozzle base 1, urea nozzle 2, auxiliary mixer 3, swirl vane blender 4, heat shield 5,
Urea mixing tube 6, expansion pipe 7, heat-preservation cotton carpet veneer 8, swirl vane 9.
Specific embodiment
Below in conjunction with accompanying drawing, the utility model will be further described.
As Figure 1-Figure 4, a kind of swirl vane formula carbamide sprays mixed cell, including urea mixing tube 6, expansion pipe 7,
Swirl vane blender 4, auxiliary mixer 3 and urea nozzle 2, the upper end of urea mixing tube 6 are provided with swirl vane blender
4, swirl vane blender 4 is evenly arranged with 12 swirl vanes 9, eddy flow in cone on the bottom surface of swirl vane blender 4
Blade 9 is arranged along the axis both clockwise of swirl vane blender 4, and swirl vane 9 with the axis angle of swirl vane blender 4 is
60-70 °, the upper end knuckle of swirl vane 9 is less than the lower end knuckle of swirl vane 9, and the lower end of urea mixing tube 6 is provided with expansion
Pipe 7, swirl vane blender 4 are internally provided with auxiliary mixer 3, and the top of auxiliary mixer 3 is provided with some projections, auxiliary
The top of blender 3 is helped to be provided with carbamide injection base 1, urea nozzle 2 is arranged on carbamide injection base 1, urea mixing tube 6
Outside be provided with heat shield 5, be provided with heat-preservation cotton carpet veneer 8, the projection of auxiliary mixer 3 between heat shield 5 and urea mixing tube 6
On be provided with air inlet.
Operation principle：The exhaust gas flow part that diesel engine is produced is entered in urea mixing tube 6 by auxiliary mixer 3,
Most of air-flow is then entered in urea mixing tube 6 by swirl vane blender 4, and air-flow is entered by swirl vane blender 4
When form swirling eddy in the presence of some swirl vanes 9, the center of the centre bore of urea nozzle 2 just to vortex gas-flow will
Aqueous solution of urea is injected directly into swirling eddy center, and aqueous solution of urea is passed through after being sufficiently mixed in urea mixing tube 6 with air-flow
Expansion pipe 7 enters the end face of SCR carriers, meanwhile, between the heat shield 5 and heat shield 5 and urea mixing tube 6 of urea mixing tube 6
Heat-preservation cotton carpet veneer 8 plays function of heat insulation jointly, can reduce heat and scatter and disappear, and prevents from producing carbamide knot in urea mixing tube 6
Brilliant.
Claims (7)
1. a kind of swirl vane formula carbamide sprays mixed cell, it is characterised in that：Including urea mixing tube（6）, expansion pipe（7）、
Swirl vane blender（4）, auxiliary mixer（3）And urea nozzle（2）, the urea mixing tube（6）Upper end be provided with rotation
Stream blade mixer（4）, the swirl vane blender（4）In cone, the swirl vane blender（4）Bottom surface on
Even it is provided with several swirl vanes（9）, the urea mixing tube（6）Lower end be provided with expansion pipe（7）, the swirl vane
Blender（4）Be internally provided with auxiliary mixer（3）, the auxiliary mixer（3）Top be provided with some projections, described
Auxiliary mixer（3）Top be provided with carbamide injection base（1）, the urea nozzle（2）It is arranged at carbamide injection base（1）
On.
2. swirl vane formula carbamide as claimed in claim 1 sprays mixed cell, it is characterised in that：The urea mixing tube
（6）Outside be provided with heat shield（5）.
3. swirl vane formula carbamide as claimed in claim 2 sprays mixed cell, it is characterised in that：The heat shield（5）With
Urea mixing tube（6）Between be provided with heat-preservation cotton carpet veneer（8）.
4. swirl vane formula carbamide as claimed in claim 1 sprays mixed cell, it is characterised in that：The swirl vane（9）
It is provided with 12-15.
5. swirl vane formula carbamide as claimed in claim 1 sprays mixed cell, it is characterised in that：The swirl vane（9）
Along swirl vane blender（4）Axis both clockwise arrangement, the swirl vane（9）With swirl vane blender（4）Axis
Angle is 60-70 °.
6. swirl vane formula carbamide as claimed in claim 1 sprays mixed cell, it is characterised in that：The swirl vane（9）
Upper end knuckle be less than swirl vane（9）Lower end knuckle.
7. swirl vane formula carbamide as claimed in claim 1 sprays mixed cell, it is characterised in that：The auxiliary mixer
（3）Projection on be provided with air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620985673.1U CN206016913U (en) | 2016-08-30 | 2016-08-30 | A kind of swirl vane formula carbamide sprays mixed cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620985673.1U CN206016913U (en) | 2016-08-30 | 2016-08-30 | A kind of swirl vane formula carbamide sprays mixed cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206016913U true CN206016913U (en) | 2017-03-15 |
Family
ID=58254492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620985673.1U Active CN206016913U (en) | 2016-08-30 | 2016-08-30 | A kind of swirl vane formula carbamide sprays mixed cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206016913U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194347A (en) * | 2016-08-30 | 2016-12-07 | 无锡威孚力达催化净化器有限责任公司 | A kind of swirl vane formula carbamide injection mixed cell |
| CN110273734A (en) * | 2019-07-25 | 2019-09-24 | 无锡威孚力达催化净化器有限责任公司 | A kind of bidirectional rotational flow cartridge type urea mixing device |
| WO2020103225A1 (en) * | 2018-11-19 | 2020-05-28 | 南京朗森自动化设备有限公司 | Adaptive urea mixer |
-
2016
- 2016-08-30 CN CN201620985673.1U patent/CN206016913U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194347A (en) * | 2016-08-30 | 2016-12-07 | 无锡威孚力达催化净化器有限责任公司 | A kind of swirl vane formula carbamide injection mixed cell |
| CN106194347B (en) * | 2016-08-30 | 2018-12-04 | 无锡威孚力达催化净化器有限责任公司 | A kind of swirl vane formula urea injection mixed cell |
| WO2020103225A1 (en) * | 2018-11-19 | 2020-05-28 | 南京朗森自动化设备有限公司 | Adaptive urea mixer |
| US11230957B2 (en) | 2018-11-19 | 2022-01-25 | Nanjing Lonsen Automation Equipment Co., Ltd. | Adaptive urea mixer |
| CN110273734A (en) * | 2019-07-25 | 2019-09-24 | 无锡威孚力达催化净化器有限责任公司 | A kind of bidirectional rotational flow cartridge type urea mixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |