CN102705047A - Air feeder for urea supplying unit - Google Patents
Air feeder for urea supplying unit Download PDFInfo
- Publication number
- CN102705047A CN102705047A CN2012101943634A CN201210194363A CN102705047A CN 102705047 A CN102705047 A CN 102705047A CN 2012101943634 A CN2012101943634 A CN 2012101943634A CN 201210194363 A CN201210194363 A CN 201210194363A CN 102705047 A CN102705047 A CN 102705047A
- Authority
- CN
- China
- Prior art keywords
- electromagnetic
- air
- air filter
- pressure regulating
- air feeder
- 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.)
- Pending
Links
Images
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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The invention discloses an air feeder for a urea supplying unit, which comprises an air filter, a pressure regulating device and an electromagnetic on-off device, wherein the air filter, the pressure regulating device and the electromagnetic on-off device are connected in sequence. The air feeder can also be formed by the air filter, the electromagnetic on-off device and the pressure regulating device which are connected in sequence. The electromagnetic on-off device is controlled by an ACU (Add Control Unit); in addition, the electromagnetic on-off device is switched on when the ACU determines that the electromagnetic on-off device needs to be switched on according to the obtained work condition information of an engine, and compressed air flows through the air filter, the pressure regulating device and the electromagnetic on-off device or the air filter, the electromagnetic on-off device and the pressure regulating device and then enters a mixing chamber system of the urea supplying unit. The air feeder aims at reducing automobile exhaust through a spray nozzle. The air feeder can provide clean compressed air with certain pressure and flow capacity to the urea supplying unit, and can also achieve real-time on-off.
Description
Technical field
The present invention relates to automotive emission control technique field, particularly relate to the air feeder that a kind of gas that is used for motor vehicle exhaust emission control helps formula SCR system urea supply unit.
Background technique
SCR is meant and is installed in the diesel car vent systems, with the catalytic reduction device that the NOx in the diesel emission is catalysed and reduced into N2 and O2, selects aqueous solution of urea as reducing agent.Aqueous solution of urea is ejected in the outlet pipe at the catalyzer upper reaches, and hydrolysis is produced as CO2 and ammonia under the effect of EGT and air-flow, and ammonia is reduced into free of contamination nitrogen G&W as reducing agent with NOx.Urea liquid must be according to the engine operating condition quantitative injection, thus the urea-spray system need with the control unit of engine communication.The working efficiency of SCR depends on gas temperature, and common gas row temperature reaches the above NOx transformation efficiency of 250 0C and can reach more than 85%.
At present, domestic diesel engine manufacturing enterprise tackles Abgasgesetz state IV on the horizon and more high-stage emission-reduction technology route is all clear and definite with, and SCR is a kind of efficient, practical vehicular emission control technique.Be that the SCR technology path is the optimal selection that medium and heavy diesel engine reaches IV stage emission standard.
Summary of the invention
Technical problem to be solved by this invention is to above-mentioned needs of the prior art and the air feeder of a kind of urea supply unit of designing; This air feeder perhaps is made up of with air filter, electromagnetism on-off system, regulator ways of connecting successively air filter, regulator, electromagnetism on-off system constituting of ways of connecting successively.This device provides for the urea supply unit to have certain pressure, the pressurized air of flow and cleaning, and can realize real-time break-make.
The technical problem that the present invention requires to solve can realize through following technological scheme:
The air feeder of a kind of urea supply unit comprises air filter, regulator, electromagnetism on-off system, and said air filter, regulator, electromagnetism on-off system connect successively.
Said air feeder connects to form with the order of air filter, electromagnetism on-off system, regulator successively.
Owing to adopted as above technological scheme, the present invention has following characteristics: this device provides for the urea supply unit to have certain pressure, the pressurized air of flow and cleaning, and can realize real-time break-make.
Description of drawings
Fig. 1 is a structured flowchart of the present invention.
The structured flowchart that Fig. 2 arranges for another kind of the present invention.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach purpose and effect and be easy to understand and understand, below in conjunction with concrete diagram, further set forth the present invention.
As shown in Figure 1, the present invention includes air filter, regulator, electromagnetism on-off system, air filter, regulator, electromagnetism on-off system connect successively.Pressurized air gets into from the air filter end, comes out from the electromagnetism on-off system.
As shown in Figure 2, the present invention can also connect to form with the order of air filter, electromagnetism on-off system, regulator successively.The compression air feed gets into from the air filter end, brings out from regulator.
Vehicle-mounted source of compressed air can provide 6-12 the pressurized air of crust; Through air filter and regulator (pressure regulation 4 crust) and then the electromagnetism on-off system (normally closed) through the 12V 2/2-way; Air feeder is controlled by the ACU control unit of SCR system, when the ACU control unit is opened electromagnetism on-off system bubbling air according to the engine operating condition information judgement needs that obtain, and system works; The electromagnetism on-off system is opened, the mixing chamber system of gas input urea supply unit.Perhaps the pressurized air of 6-12 crust again through the electromagnetism on-off system, enters into the mixing chamber system of urea supply unit through air filter at last through regulator pressure regulation to 4 crust.So that through nozzle system vehicle exhaust is reduced at last.
More than show and described basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention; The present invention also has various changes and modifications under the prerequisite that does not break away from spirit and scope of the invention, and these variations and improvement all fall in the scope of the invention that requires protection.The present invention requires protection domain to be defined by appending claims and equivalent thereof.
Claims (2)
1. the air feeder of a urea supply unit is characterized in that, comprises air filter, regulator, electromagnetism on-off system, and said air filter, regulator, electromagnetism on-off system connect successively.
2. the air feeder of urea supply as claimed in claim 1 unit is characterized in that, said air feeder connects to form with the order of air filter, electromagnetism on-off system, regulator successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101943634A CN102705047A (en) | 2012-06-13 | 2012-06-13 | Air feeder for urea supplying unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101943634A CN102705047A (en) | 2012-06-13 | 2012-06-13 | Air feeder for urea supplying unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102705047A true CN102705047A (en) | 2012-10-03 |
Family
ID=46898068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101943634A Pending CN102705047A (en) | 2012-06-13 | 2012-06-13 | Air feeder for urea supplying unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102705047A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806238A (en) * | 2010-03-13 | 2010-08-18 | 中国第一汽车集团公司 | Air-assisted atomized urea reducing agent spraying controlling system of pump power |
| CN202157846U (en) * | 2011-06-20 | 2012-03-07 | 杭州银轮科技有限公司 | Air-assisted injection system for diesel engine post-treating urea silicon controlled rectifier (SCR) system |
| CN202611810U (en) * | 2012-06-13 | 2012-12-19 | 安徽艾可蓝节能环保科技有限公司 | Air feeder of urea feed unit |
-
2012
- 2012-06-13 CN CN2012101943634A patent/CN102705047A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101806238A (en) * | 2010-03-13 | 2010-08-18 | 中国第一汽车集团公司 | Air-assisted atomized urea reducing agent spraying controlling system of pump power |
| CN202157846U (en) * | 2011-06-20 | 2012-03-07 | 杭州银轮科技有限公司 | Air-assisted injection system for diesel engine post-treating urea silicon controlled rectifier (SCR) system |
| CN202611810U (en) * | 2012-06-13 | 2012-12-19 | 安徽艾可蓝节能环保科技有限公司 | Air feeder of urea feed unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8109077B2 (en) | Dual injector system for diesel emissions control | |
| CN201763419U (en) | Device for spraying liquid reducing agent into engine to exhaust gas | |
| US9057312B2 (en) | System and apparatus for reducing reductant deposit formation in exhaust aftertreatment systems | |
| CN101629506B (en) | Exhaust gas purifying device | |
| CN102191975A (en) | Gas/liquid mixing device for diesel exhaust aftertreatment | |
| CN104061046A (en) | Compact Exhaust Gas Treatment Systems For Diesel Devices | |
| CN204984552U (en) | A exhaust after treatment system for engine | |
| CN202611818U (en) | Air-assisted selective catalytic reduction (SCR) system | |
| CN102165153A (en) | Exhaust gas cleaning arrangement and method for exhaust gas cleaning using a reducing agent | |
| CN102713178B (en) | Airless fuel delivery system for vehicle exhaust parts, vehicle exhaust system and fuel delivery method | |
| CN202611810U (en) | Air feeder of urea feed unit | |
| CN101975102B (en) | Pneumatic single-urea box full-deflating emptying pipeline SCR urea system | |
| CN102691557A (en) | Urea supplying unit for air-assisting type SCR (Selective Catalyst Reaction) system | |
| CN102748106A (en) | Urea nozzle of SCR (Selective Catalytic Reduction) system and mounting structure of urea nozzle | |
| CN202832721U (en) | Integrated type automotive semiconductor control rectifier (SCR) system | |
| CN210003364U (en) | kinds of post-processing system | |
| CN203130208U (en) | Diesel engine selective catalyst reduction injection system | |
| CN102688712B (en) | Mixer for urea feeding unit | |
| CN102705047A (en) | Air feeder for urea supplying unit | |
| CN202611817U (en) | Urea supply unit for gas assisted type semiconductor control rectifier (SCR) system | |
| CN206592184U (en) | A kind of auxiliary formula urea injection apparatus of the gas emptied | |
| CN203906052U (en) | Vehicle exhaust after-treatment system | |
| CN204511593U (en) | The pipe integrated metering injection system of a kind of motor exhaust | |
| CN103821597A (en) | Vehicle emission post treatment system | |
| CN103422952A (en) | Integrated semiconductor control rectifier (SCR) system for automobile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121003 |