CN206000602U - A kind of diesel engine after treatment carbamide blender - Google Patents
A kind of diesel engine after treatment carbamide blender Download PDFInfo
- Publication number
- CN206000602U CN206000602U CN201620901199.XU CN201620901199U CN206000602U CN 206000602 U CN206000602 U CN 206000602U CN 201620901199 U CN201620901199 U CN 201620901199U CN 206000602 U CN206000602 U CN 206000602U
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- China
- Prior art keywords
- blender
- carbamide
- fix bar
- treatment
- diesel engine
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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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- Exhaust Gas After Treatment (AREA)
Abstract
This utility model is related to a kind of diesel engine after treatment carbamide blender, and including cylinder, the front end center position of cylinder is provided with fix bar, fix bar is provided with several blades, and blade is uniform around fix bar circumference, and the rear end of cylinder is provided with catalyst carrier.This utility model structure is simple, compact to design, easy to use, in the front end of blender, multiple helical blades are set, increased the agitation of air-flow in blender, make urea liquid and waste gas enter SCR carrier after being sufficiently mixed, improve the catalytic efficiency of SCR system, decrease the discharge of NOX, decrease crystallization and sedimentary generation.
Description
Technical field
This utility model is related to a kind of diesel engine after treatment carbamide blender, belongs to diesel vehicle tail gas processor technology neck
Domain.
Background technology
With the progressively enforcement of China's the 5th stage tail gas of heavy-duty vehicle pollutant emission limits value standard, with ammonia as reducing agent
SCR（Selective Catalytic Reduction, abridge SCR）System,
It is increasingly becoming the main method that each car load factory, engine works and post processing supplier reduce nitrogen oxides.In catalysis
Under the catalytic action of agent, the ammonia that decomposes out in carbamide（NH3）With the nitrogen oxides in motor exhaust（NOX）Aoxidize
Reduction reaction, generates nitrogen（N2）With water (H2O), thus reducing NOXDischarge, meets state more than five discharge.
The key technology of SCR system is to improve NH3With the mixing uniformity of waste gas, reduce urea crystals risk.Existing
Blender NH3The uniformity of mixing is relatively low, and crystallization risk is larger.To NO in state five AbgasgesetzXEmission limit proposes higher
Requirement, this requires that existing urea blender has more preferable ammonia and mixes effect, urea crystals risk is down to minimum, simultaneously full
Sufficient compact conformation, simple requirement.
Content of the invention
The purpose of this utility model is relatively low in order to solve the uniformity that existing blender mixes in use, knot
The larger problem of brilliant risk, there is provided a kind of structure is simple, diesel engine after treatment carbamide blender compact to design, this blender
Urea liquid and waste gas can be made to be sufficiently mixed, thus reducing the generation of crystallization, deposit.
This utility model adopts the following technical scheme that：A kind of diesel engine after treatment carbamide blender, including cylinder, described cylinder
The front end center position of body is provided with fix bar, described fix bar is provided with several blades, described blade is around fix bar
Circumference is uniform, and the rear end of described cylinder is provided with catalyst carrier.
Further, described blade is provided with 2-6.
Further, described blade is helical blade, and spiral angle is 180-360 °, and pitch is 100-200mm, blade width
Spend for 80-140mm.
Further, described fix bar and the distance of catalyst carrier are 15-80mm.
Further, described cylinder is toroidal shell.
This utility model structure is simple, compact to design, easy to use, arranges multiple helical blades in the front end of blender,
Increased the agitation of air-flow in blender, make urea liquid and waste gas enter SCR carrier after being sufficiently mixed, improve SCR system
Catalytic efficiency, decrease NOXDischarge, decrease crystallization and sedimentary generation.
Brief description
Fig. 1 is profile of the present utility model.
Fig. 2 is side view of the present utility model.
Fig. 3 is internal structure schematic diagram of the present utility model.
Reference：Fix bar 1, blade 2, catalyst carrier 3, cylinder 4.
Specific embodiment
Below in conjunction with accompanying drawing, the utility model will be further described.
As shown in Figure 1-Figure 3, a kind of diesel engine after treatment carbamide blender, including cylinder 4, cylinder 4 is toroidal shell, cylinder
The front end center position of body 4 is provided with fix bar 1, and fix bar 1 is provided with 4 blades 2, and blade 2 is around fix bar 1 circumference all
Cloth, blade 2 is helical blade, and spiral angle is 206 °, and pitch is 140mm, and width of blade is 102mm, the rear end setting of cylinder 4
There is catalyst carrier 3, fix bar 1 is 64.5mm with the distance of catalyst carrier 3.
Operation principle and method：This utility model is connected on the exhaustor of internal combustion engine by flange by front end, internal combustion
After the discarded urea liquid spraying with urea injector that machine produces enters blender, it is divided into solely by cylinder 4 front end four blade 2
Four vertical parts, solve the problems, such as urea liquid distribution undue concentration, blade 2 inner space reduces, after air-flow enters, speed
Increase, under the guide functions of blade 2, airflow direction changes, and produce strong eddy flow and turbulent flow, accelerate waste gas and urine
The mixing of plain solution, after air-flow flows out blade 2, the interphase interaction of four bundle air-flows, waste gas and urea liquid occur strong second
Strong mixing, therefore so that NH on catalyst carrier 3 right side of cylinder back-end3Uniformity coefficient can reach more than 0.95.
Claims (5)
1. a kind of diesel engine after treatment carbamide blender it is characterised in that：Including cylinder（4）, described cylinder（4）Front end center
Position is provided with fix bar（1）, described fix bar（1）On be provided with several blades（2）, described blade（2）Around fix bar
（1）Circumference is uniform, described cylinder（4）Rear end be provided with catalyst carrier（3）.
2. diesel engine after treatment carbamide blender as claimed in claim 1 it is characterised in that：Described blade（2）It is provided with 2-6
Individual.
3. diesel engine after treatment carbamide blender as claimed in claim 1 it is characterised in that：Described blade（2）For helical-blade
Piece, spiral angle is 180-360 °, and pitch is 100-200mm, and width of blade is 80-140mm.
4. diesel engine after treatment carbamide blender as claimed in claim 1 it is characterised in that：Described fix bar（1）With catalysis
Agent carrier（3）Distance be 15-80mm.
5. diesel engine after treatment carbamide blender as claimed in claim 1 it is characterised in that：Described cylinder（4）For circular casing
Body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620901199.XU CN206000602U (en) | 2016-08-17 | 2016-08-17 | A kind of diesel engine after treatment carbamide blender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620901199.XU CN206000602U (en) | 2016-08-17 | 2016-08-17 | A kind of diesel engine after treatment carbamide blender |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206000602U true CN206000602U (en) | 2017-03-08 |
Family
ID=58199265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620901199.XU Active CN206000602U (en) | 2016-08-17 | 2016-08-17 | A kind of diesel engine after treatment carbamide blender |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206000602U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729990A (en) * | 2017-04-20 | 2018-11-02 | 北华航天工业学院 | A kind of diesel engine after treatment heating and mixing device of anti-urea crystals |
| WO2019019725A1 (en) * | 2017-07-27 | 2019-01-31 | 天纳克（苏州）排放***有限公司 | Engine exhaust after-treatment mixing device, after-treatment device comprising same, and application thereof |
| US10473018B2 (en) | 2017-11-30 | 2019-11-12 | Katcon Global S.A. | Exhaust line for a vehicle |
-
2016
- 2016-08-17 CN CN201620901199.XU patent/CN206000602U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108729990A (en) * | 2017-04-20 | 2018-11-02 | 北华航天工业学院 | A kind of diesel engine after treatment heating and mixing device of anti-urea crystals |
| WO2019019725A1 (en) * | 2017-07-27 | 2019-01-31 | 天纳克（苏州）排放***有限公司 | Engine exhaust after-treatment mixing device, after-treatment device comprising same, and application thereof |
| US10473018B2 (en) | 2017-11-30 | 2019-11-12 | Katcon Global S.A. | Exhaust line for a vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |