CN203098001U - Engine waste gas flow purifying device - Google Patents
Engine waste gas flow purifying device Download PDFInfo
- Publication number
- CN203098001U CN203098001U CN2012207076718U CN201220707671U CN203098001U CN 203098001 U CN203098001 U CN 203098001U CN 2012207076718 U CN2012207076718 U CN 2012207076718U CN 201220707671 U CN201220707671 U CN 201220707671U CN 203098001 U CN203098001 U CN 203098001U
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- CN
- China
- Prior art keywords
- reducing agent
- unit
- engine
- waste gas
- exhaust
- 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
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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
- Y02T10/40—Engine management systems
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- Exhaust Gas After Treatment (AREA)
Abstract
The utility model discloses an engine waste gas flow purifying device which comprises an engine, an exhaust guide pipe and a vehicular electronic control unit. The exhaust guide pipe is connected with an exhaust port of the engine. The engine waste gas purifying device further comprises a sensor unit installed on the exhaust guide pipe. A reducing agent supply unit and an aftertreatment unit are sequentially installed on the exhaust guide pipe between the engine and the sensor unit. The vehicular electronic control unit is respectively connected with the reducing agent supply unit and the aftertreatment unit. The vehicular electronic control unit can control usage of reducing agent involved in chemical reaction, and waste gas treatment efficiency is effectively improved. The engine waste gas flow purifying device is simple in structure and low in cost and different reducing agent and catalyst can be added to treat harmful gas in various waste gas flows according to practical needs.
Description
Technical field
The utility model relates to the purifying vehicle exhaust field, is specifically related to a kind of engine efflux purification plant.
Background technique
Motor comprises that diesel engine, petrol engine, gaseous propellant engine all can discharge the waste gas that air is had pollution, such as CO, CH, NO and NO
2Etc. various nitrogen oxide.Since growing to the concern of environment, more and more stricter to the exhaust gas discharging standard.In order to reach these standards, manufacturers of engines is being pursued the technology of improving motor always, such as, fuel injection control, gas handling system improvement etc.In addition, the MANUFACTURER of motor has also been invented many engine exhaust treatment appts.Such as, ternary catalyzing unit commonly used at present, ternary catalyzing unit is the ceramic filter device of a shape such as honeycomb briquet, is installed in the interior increase of outlet pipe exhaust resistance engine power is had a negative impact.But owing to be to make of precious metal, price is more expensive.Also have some exhaust gas treatment devices by injection of reducing agent is mapped in the exhaust flow, in exhaust flow, harmful gas is converted into other compound then.Though this can effectively reduce content of harmful gas, be difficult to guarantee that reducing agent is evenly distributed, make reducing agent can not be well and the harmful gas in the exhaust flow fully react.
Summary of the invention
The purpose of this utility model is, a kind of engine efflux purification plant is provided, this device is harmful gas in the purifying engine exhaust flow effectively, can also spray into the amount of reducing agent in the exhaust flow by electronic control unit controls when engine discharging tail gas is defective, thereby drop to the harmful gas content in the waste gas minimum.
In order to realize above-mentioned task, the utility model adopts following technological scheme to be achieved:
A kind of engine efflux purification plant comprises motor, exhaust manifolds and vehicle electronics control unit, and exhaust manifolds connect exhaust opening of engine; This device also comprises the sensor unit that is installed on the exhaust manifolds, to the exhaust manifolds between the sensor unit reducing agent feed unit and post-processing unit are installed successively at motor, the vehicle electronics control unit is connected with the reducing agent feed unit with sensor unit respectively.
Other technologies characteristics of the present utility model:
Described post-processing unit comprises the conversion catalyst device.
Described reducing agent feed unit comprises that one is supplied with manifold, offers on the described supply manifold and supplies oral pore.
The utility model compared with prior art, the technique effect that brings is:
1. can effectively improve waste gas treatment efficient by the amount of vehicle electronics control unit control participation chemical reaction reducing agent.
2. there are a plurality of reducing agents to supply oral pore, reducing agent are evenly distributed and harmful gas fully reacts in exhaust flow.
3. simple in structure, cost is low, and can add different reducing agents, catalyzer according to actual needs to handle the harmful gas in the various exhaust flows.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the schematic representation of the utility model reducing agent feed unit;
The implication of number in the figure: 1-motor, 2-exhaust manifolds, 3-post-processing unit, 4-sensor unit, 5-vehicle electronics control unit, 6-reducing agent feed unit, 7-supply with manifold, 8-supply oral pore;
Below in conjunction with drawings and Examples the utility model is further specified.
Embodiment
Below provide specific embodiment of the utility model; need to prove that the utility model is not limited to following specific embodiment; this embodiment only is schematic, guiding; rather than restrictive, all equivalents of doing on present techniques scheme basis all fall into protection domain of the present utility model.
As shown in Figure 1, a kind of engine efflux purification plant based on technical solutions of the utility model, comprise motor 1, exhaust manifolds 2 and vehicle electronics control unit 5, exhaust manifolds 2 connect the relief opening of motor 1, this device also comprises the sensor unit 4 that is installed on the exhaust manifolds 2, to the exhaust manifolds 2 between the sensor unit 4 reducing agent feed unit 6 and post-processing unit 3 are installed successively at motor 1, vehicle electronics control unit 5 is connected with reducing agent feed unit 6 with sensor unit 4 respectively.
Exhaust manifolds 2 are connected with motor 1 relief opening, exhaust flow and the reducing agent of carrying motor 1 to discharge.Reducing agent feed unit 6 is arranged between motor 1 and the post-processing unit 3, reducing agent feed unit 6 comprise one supply with manifold 7 with a plurality of be connected with the manifold transition supply oral pore 8, as shown in Figure 2.Under identical pressure, supply oral pore 8 by each and be ejected in the exhaust flow in the exhaust manifolds 2 supplying with reducing agent in the manifold 7, guarantee that reducing agent is evenly distributed in the exhaust flow.Post-processing unit 3 comprises a catalytic converter, for redox reaction provides catalyzer.Sensor unit 4 comprises one group of gas transducer, as NO sensor, CO sensor etc., be installed in the exhaust manifolds 2 in post-processing unit 3 downstreams, detect after treatment content of harmful gas in the exhaust flow, vehicle electronics control unit 5(is a vehicle-mounted ECU) sensor-lodging, thus control reducing agent feed unit 6 is ejected into the amount of reducing agent in the exhaust flow.
With nitrogen oxide (NO in the engine efflux
X) introduce the concrete implementing method of this device for example.Harmful matter is a nitrogen oxide, and reducing agent is ammonia (NH
3).The principle that the utility model adopts is that nitrogen oxide and ammonia by redox reaction, are N with conversion of nitrogen oxides under the condition of catalyzer
2And H
2O.
The exhaust flow that motor 1 is discharged mixes at exhaust manifolds 2 with the reducing agent that reducing agent feed unit 6 sprays, redox reaction does not take place in both, along with the motion reducing agent of air-flow is transported to post-processing unit 3 and is adsorbed by catalyzer, redox reaction takes place in nitrogen oxides in exhaust streams and reducing agent under the effect of catalyzer, nitrogen oxide is converted into N
2And H
2O.In the exhaust manifolds 2 in post-processing unit 3 downstreams, NO is installed
XAnd NH
3Sensor, to pass to vehicle electronics control unit 5 through the content information of nitrogen oxide in the exhaust flow here, if amount of nitrogen oxides is higher than the emission standard value of setting, electronic control unit 5 will in time be controlled reducing agent feed unit 6, increase the amount that is ejected into reducing agent in the exhaust flow.If NH
3Content is higher than certain value, and vehicle electronics control unit 5 will in time be controlled reducing agent feed unit 6, reduces the amount that is ejected into reducing agent in the exhaust flow, improves cleaning harmful gas efficient with this.
During this device practical application, only need to increase corresponding reducing agent, catalyzer and sensor, get final product various harmful gases in the purifying engine exhaust flow.
The electronic parts and components that the utility model adopts are known product, and those skilled in the art are according to the i.e. concrete Placement of electronic parts and components as can be known of the technical solution of the utility model.
Claims (3)
1. engine efflux purification plant, comprise motor (1), exhaust manifolds (2) and vehicle electronics control unit (5), exhaust manifolds (2) connect the relief opening of motor (1), it is characterized in that, this device also comprises the sensor unit (4) that is installed on the exhaust manifolds (2), to the exhaust manifolds (2) between the sensor unit (4) reducing agent feed unit (6) and post-processing unit (3) are installed successively at motor (1), vehicle electronics control unit (5) is connected with reducer feeding device (6) with sensor unit (4) respectively.
2. engine efflux purification plant as claimed in claim 1 is characterized in that, described post-processing unit (3) comprises catalytic converter.
3. engine efflux purification plant as claimed in claim 1 is characterized in that, described reducing agent feed unit (6) comprises that one is supplied with manifold (7), offers on the described supply manifold (7) and supplies oral pore (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207076718U CN203098001U (en) | 2012-12-19 | 2012-12-19 | Engine waste gas flow purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207076718U CN203098001U (en) | 2012-12-19 | 2012-12-19 | Engine waste gas flow purifying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098001U true CN203098001U (en) | 2013-07-31 |
Family
ID=48849408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207076718U Expired - Fee Related CN203098001U (en) | 2012-12-19 | 2012-12-19 | Engine waste gas flow purifying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098001U (en) |
-
2012
- 2012-12-19 CN CN2012207076718U patent/CN203098001U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130731 Termination date: 20131219 |