CN218717075U - Automobile exhaust treatment device, automobile exhaust emission device, engine and automobile - Google Patents
Automobile exhaust treatment device, automobile exhaust emission device, engine and automobile Download PDFInfo
- Publication number
- CN218717075U CN218717075U CN202222105761.6U CN202222105761U CN218717075U CN 218717075 U CN218717075 U CN 218717075U CN 202222105761 U CN202222105761 U CN 202222105761U CN 218717075 U CN218717075 U CN 218717075U
- Authority
- CN
- China
- Prior art keywords
- exhaust
- heater
- selective catalytic
- automobile
- engine
- 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.)
- Active
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
-
- 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
Abstract
The utility model relates to an automobile exhaust processing apparatus, automobile exhaust emission device, engine and car belongs to the automobile engine field. Comprises a heater, a selective catalytic reduction device and a first temperature sensor; the heater and the selective catalytic reducer are communicated in sequence along the exhaust emission direction, and the exhaust can sequentially pass through the heater and the selective catalytic reducer; the first temperature sensor is arranged on an air inlet of the selective catalytic reducer and used for detecting the temperature of tail gas entering the selective catalytic reducer. The utility model discloses can be when the temperature that first temperature sensor detected tail gas is less than the reaction temperature of selective catalytic reduction ware, the heater can heat tail gas, improves the temperature of tail gas, makes tail gas reach the reaction temperature of selective catalytic reduction ware to guarantee that the harmful gas in the tail gas is handled effectively.
Description
Technical Field
The utility model belongs to the automobile engine field especially relates to an automobile exhaust processing apparatus, automobile exhaust discharging equipment, engine and car.
Background
The method for treating nitrogen oxides in automobile exhaust emission basically comprises the step of additionally arranging a selective catalytic reducer, wherein the selective catalytic reducer is a device for nitrogen oxides in the exhaust emission of diesel vehicles, namely, under the action of a catalyst, a reducing agent ammonia or urea is sprayed in to reduce the nitrogen oxides in the exhaust into nitrogen and water. However, a certain temperature condition is required for the reaction of the chemical reaction in the reaction cavity of the selective catalytic reducer, and at present, the exhaust temperature of the tail gas needs to be increased by properly reducing the air inlet throttling and the exhaust throttling and increasing the post-injection quantity and the timing in the engine calibration process, but the economical efficiency of the engine is deteriorated by the measures. Simultaneously, above-mentioned measure also can cause the particulate matter in the tail gas and the increase of particulate matter quantity. In addition, the automobile can also have the phenomenon of excessively low exhaust emission temperature under long downhill or some low-temperature environments, and cannot reach the reaction conditions of the selective catalytic reduction device. Under the condition for a long time, the content of nitrogen oxides in the tail gas is increased, and the emission standard cannot be met. At low temperatures, urea crystals tend to clog the selective catalytic reducer.
SUMMERY OF THE UTILITY MODEL
In view of the above shortcomings in the prior art, an object of the present invention is to provide an automobile exhaust gas treatment device, an automobile exhaust gas emission device, an engine and an automobile, which are used to solve the problems that the selective catalytic reduction cannot be used for treating when the exhaust gas emission temperature is too low in the prior art.
In order to achieve the above and other related objects, the present invention provides an automobile exhaust gas treatment device for treating automobile exhaust gas, comprising a heater, a selective catalytic reduction device and a first temperature sensor; the heater and the selective catalytic reducer are communicated in sequence along the exhaust emission direction, and the exhaust can sequentially pass through the heater and the selective catalytic reducer; the first temperature sensor is arranged on an air inlet of the selective catalytic reducer and used for detecting the temperature of tail gas entering the selective catalytic reducer.
Optionally, the exhaust gas purification device further comprises an oxidation catalyst and a particulate filter, and the heater, the oxidation catalyst, the particulate filter and the selective catalytic reduction device are sequentially communicated along the exhaust gas emission direction.
Optionally, the exhaust gas heating system further comprises a second temperature sensor, the second temperature sensor is arranged on the air inlet of the heater, and the second temperature sensor is used for detecting the temperature of the exhaust gas entering the heater.
Optionally, the heating device further comprises an electronic control unit, and the heater and the first temperature sensor are respectively in signal connection with the electronic control unit.
Optionally, the heater is an electric heater.
The utility model also provides an automobile exhaust emission device, which comprises an exhaust pipe and the exhaust treatment device, wherein one end of the exhaust pipe is an air inlet end which is used for receiving the exhaust emitted by the engine; the heater and the selective catalytic reducer are sequentially arranged on the exhaust pipe along the exhaust direction of the tail gas, and the tail gas in the exhaust pipe sequentially passes through the heater and the selective catalytic reducer.
Optionally, the exhaust system further comprises an exhaust manifold connected to an air inlet end of the exhaust pipe, and the exhaust pipe is communicated with each cylinder of the automobile engine through the exhaust manifold.
Optionally, the exhaust gas heating apparatus further comprises an exhaust throttle valve provided on the exhaust pipe, the exhaust throttle valve being provided before the heater in an exhaust direction of the exhaust pipe.
The utility model also provides an engine, including engine body and foretell automobile exhaust emission device, the blast pipe with engine body intercommunication, the tail gas of engine via blast pipe discharge.
The utility model also provides an automobile, including automobile body and foretell engine, automobile body is used for loading and traveles, the engine is installed on automobile body, is used for the drive automobile body.
The utility model provides an automobile exhaust processing apparatus, automobile exhaust discharging equipment, engine and car has following beneficial effect: because the heater sets up before selective catalytic reduction ware in the emission direction of tail gas, and first temperature sensor can detect the temperature of getting into the tail gas in the selective catalytic reduction ware, consequently when the temperature that first temperature sensor detected the tail gas is less than the reaction temperature of selective catalytic reduction ware, the heater can heat the tail gas, improves the temperature of tail gas, makes the tail gas reach the reaction temperature of selective catalytic reduction ware to guarantee that the harmful gas in the tail gas is handled effectively.
Drawings
FIG. 1 is a schematic view of an embodiment of the present invention;
fig. 2 is a schematic diagram of a heater according to an embodiment of the present invention.
Description of reference numerals: the system comprises a heater 1, a first temperature sensor 2, a selective catalytic reduction device 3, a second temperature sensor 4, an oxidation catalyst 5, a particulate filter 6, an exhaust throttle valve 7, an exhaust manifold 8, an engine body 9, an intake manifold 10, a throttle valve 11, an intercooler 12, a turbocharger 13, an air cleaner 14, an exhaust gas recirculation device 15, an electronic control unit 16 and a vehicle-mounted power supply 17.
The specific implementation mode is as follows:
the following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention. As shown in fig. 1, the utility model provides an automobile exhaust treatment device can be used for handling the tail gas of car. The automobile exhaust gas treatment device includes a heater 1, a Selective Catalytic Reduction (Selective Catalytic Reduction) 3, and a first temperature sensor 2. The heater 1 and the selective catalytic reduction device 3 are communicated in sequence along the exhaust direction, and the exhaust can sequentially pass through the heater 1 and the selective catalytic reduction device 3. The first temperature sensor 2 is provided on the air inlet of the selective catalytic reducer 3 for detecting the temperature of the exhaust gas entering the selective catalytic reducer 3. In this embodiment, the heater 1 is the electric heater 1, and the electric heater 1 is simple in structure, high in heating efficiency, capable of being powered by the vehicle-mounted power supply 17, and suitable for vehicle-mounted use.
When the first temperature sensor 2 detects that the temperature of the tail gas entering the selective catalytic reducer 3 is lower than the reaction temperature of the selective catalytic reducer 3, the heater 1 can heat the tail gas, so that the temperature of the tail gas is increased, the tail gas reaches the reaction temperature of the selective catalytic reducer 3, and harmful gas in the tail gas is effectively treated. When the temperature of the exhaust gas detected by the first temperature sensor 2 reaches the reaction temperature of the selective catalytic reducer 3, the heater 1 stops heating.
The automobile exhaust gas treatment device in this embodiment further includes an Oxidation Catalyst 5 (Diesel Oxidation Catalyst) and a Particulate Filter 6 (Diesel Particulate Filter). The oxidation catalyst 5 and the particulate filter 6 are disposed between the heater 1 and the selective catalytic reduction device 3 in this order in the exhaust direction of the exhaust gas. The exhaust gas discharged from the automobile can sequentially pass through the heater 1, the oxidation catalyst 5, the particulate filter 6 and the selective catalytic reduction device 3. The oxidation catalyst 5 can convert carbon monoxide and hydrocarbons in the exhaust gas into harmless water and carbon dioxide through oxidation reaction, and the particle filter 6 can reduce particles in the exhaust gas through filtering, so that 70% -90% of particles in the exhaust gas can be effectively purified.
In this embodiment, the automobile exhaust gas treatment device further includes a second temperature sensor 4 disposed on the air inlet of the heater 1. The second temperature sensor 4 can be used for detecting the temperature of the tail gas entering the heater 1, when the second temperature sensor 4 detects that the temperature of the tail gas entering the selective catalytic reduction device 3 is lower than the reaction temperature of the selective catalytic reduction device 3, the heater 1 can heat the tail gas in advance, delay of tail gas heating is avoided, and harmful gas in the tail gas can be effectively treated.
Specifically, when the temperature of the exhaust gas detected by either the first temperature sensor 2 or the second temperature sensor 4 is lower than the reaction temperature of the selective catalytic reducer 3, the heater 1 starts heating until the temperatures of the exhaust gas detected by the first temperature sensor 2 and the second temperature sensor 4 both satisfy the reaction temperature of the selective catalytic reducer 3.
As shown in fig. 2, the automobile exhaust gas treatment device of the present embodiment further includes an electronic control unit 16, and the heater 1 and the first temperature sensor 2 are respectively in signal connection with the electronic control unit 16. The electronic control unit 16 can receive the temperature detection signal of the first temperature sensor 2 and send a control signal to the heater 1 to control the heater 1 to be turned on or off. In this embodiment, the electronic control unit 16 is also in signal connection with the second temperature sensor 4 and receives the temperature signal detected by the second temperature sensor 4.
When either the first temperature sensor 2 or the second temperature sensor 4 detects that the temperature of the exhaust gas is lower than the reaction temperature of the selective catalytic reducer 3, the electronic control unit 16 controls the heater 1 to start heating, and when the temperatures of the exhaust gas detected by the first temperature sensor 2 and the second temperature sensor 4 both satisfy the reaction temperature of the selective catalytic reducer 3, the electronic control unit 16 controls the heater 1 to stop heating.
The utility model also provides an automobile exhaust emission device, including blast pipe and above tail gas processing apparatus, the one end of blast pipe is the inlet end, and the inlet end is used for receiving engine exhaust's tail gas. The heater 1 and the selective catalytic reduction device 3 are sequentially arranged on the exhaust pipe along the exhaust direction of the exhaust gas, and the exhaust gas in the exhaust pipe sequentially passes through the heater 1 and the selective catalytic reduction device 3.
In this embodiment, the exhaust emission device further includes an exhaust manifold 8, and the exhaust manifold 8 is connected to the air inlet end of the exhaust pipe. When the engine includes a plurality of cylinders, the exhaust pipe may communicate with the respective cylinders of the engine through the exhaust manifold 8, respectively.
The automobile exhaust emission device also comprises an exhaust throttle valve 7 arranged on the exhaust pipe, in the exhaust direction of the exhaust pipe, the exhaust throttle valve 7 is arranged in front of the heater 1, the exhaust throttle valve 7 can limit the rotating speed of the engine, the rotating speed of the engine can be prevented from being too high under the conditions of long downhill and the like, and the auxiliary braking effect is achieved.
The utility model also provides an engine, including engine body 9 and as above automobile exhaust emission device, blast pipe and engine body 9 intercommunication, the tail gas of engine is via the blast pipe discharge.
The engine body 9 is usually provided with an intake pipe, an intake manifold 10 is arranged between the intake pipe and the engine, and the intake pipe is communicated with each cylinder of the engine through the intake manifold 10. In this embodiment, a turbocharger 13 and an exhaust gas recirculation device 15 are disposed between the intake pipe and the exhaust pipe, and the turbocharger 13 can recover kinetic energy of the exhaust gas, increase the intake air amount of the engine, and improve the power and fuel economy of the engine. The exhaust gas recirculation device 15 can remit part of the exhaust gas of the engine into the intake pipe, reduce the content of nitrogen oxides in the exhaust gas, and improve the fuel economy at part load of the engine. An air filter 14 is arranged on an air inlet of the air inlet pipe, and the air filter 14 can reduce impurities in the air inlet of the engine and prolong the service life of the engine.
The air inlet pipe between the turbocharger 13 and the exhaust gas recirculation device 15 is provided with a throttle valve 11 and an intercooler 12, the throttle valve 11 can adjust air inflow, and further adjust the rotating speed of the engine, and the intercooler 12 can reduce the temperature of high-temperature air after turbocharging so as to reduce the heat load of the engine, improve the air inflow, and further increase the power of the engine.
The utility model also provides a car, including the automobile body and as above engine, the automobile body is used for loading and traveling, and the engine is installed on the automobile body for drive automobile body. The automobile body mainly comprises a chassis and an automobile body, wherein the chassis comprises a running system, a transmission system steering system and a braking system. The rotating system is used for adjusting the direction of the automobile in the running process, and the braking system is used for running and braking the automobile. The engine is arranged on the chassis, and the power transmission value running system drives the automobile to run through the transmission system.
In conclusion, the automobile exhaust treatment device, the automobile exhaust emission device, the engine and the automobile provided by the embodiment can heat the exhaust by the heater when the temperature of the exhaust detected by the first temperature sensor is lower than the reaction temperature of the selective catalytic reduction device, so that the temperature of the exhaust is increased, the exhaust reaches the reaction temperature of the selective catalytic reduction device, and therefore harmful gases in the exhaust are effectively treated.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. The utility model provides an automobile exhaust processing apparatus for handle the tail gas of car, its characterized in that: comprises a heater, a selective catalytic reduction device and a first temperature sensor;
the heater and the selective catalytic reducer are communicated in sequence along the exhaust emission direction, and the exhaust can pass through the heater and the selective catalytic reducer in sequence;
the first temperature sensor is arranged on an air inlet of the selective catalytic reducer and used for detecting the temperature of tail gas entering the selective catalytic reducer.
2. The automobile exhaust gas treatment device according to claim 1, characterized in that: the exhaust gas purification device is characterized by further comprising an oxidation type catalyst and a particle filter, wherein the heater, the oxidation type catalyst, the particle filter and the selective catalytic reduction device are sequentially communicated along the exhaust direction of exhaust gas.
3. The automobile exhaust gas treatment device according to claim 1, characterized in that: still include the second temperature sensor, the second temperature sensor sets up on the air inlet of heater, the second temperature sensor is used for detecting the temperature of getting into the tail gas of heater.
4. The automobile exhaust gas treatment device according to claim 1, characterized in that: the heater and the first temperature sensor are respectively in signal connection with the electronic control unit.
5. The automobile exhaust gas treatment device according to claim 1, characterized in that: the heater is an electric heater.
6. An automobile exhaust emission device which characterized in that: the tail gas treatment device comprises an exhaust pipe and the tail gas treatment device as claimed in any one of claims 1 to 5, wherein one end of the exhaust pipe is an air inlet end which is used for receiving tail gas exhausted by an engine;
the heater and the selective catalytic reducer are sequentially arranged on the exhaust pipe along the exhaust direction of the tail gas, and the tail gas in the exhaust pipe sequentially passes through the heater and the selective catalytic reducer.
7. The automobile exhaust gas-discharging device according to claim 6, wherein: the exhaust manifold is connected to the air inlet end of the exhaust pipe, and the exhaust pipe is communicated with each cylinder of the automobile engine through the exhaust manifold.
8. The automobile exhaust gas-discharging device according to claim 6, wherein: further comprising an exhaust throttle valve provided on the exhaust pipe, the exhaust throttle valve being provided before the heater in an exhaust direction of the exhaust pipe.
9. An engine, characterized in that: the automobile exhaust emission device according to any one of claims 6 to 8, comprising an engine body, wherein the exhaust pipe is in communication with the engine body, and exhaust gas of the engine is discharged through the exhaust pipe.
10. An automobile, characterized in that: comprising a car body for loading and driving and an engine according to claim 9 mounted on the car body for driving the car body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222105761.6U CN218717075U (en) | 2022-08-10 | 2022-08-10 | Automobile exhaust treatment device, automobile exhaust emission device, engine and automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222105761.6U CN218717075U (en) | 2022-08-10 | 2022-08-10 | Automobile exhaust treatment device, automobile exhaust emission device, engine and automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218717075U true CN218717075U (en) | 2023-03-24 |
Family
ID=85628608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222105761.6U Active CN218717075U (en) | 2022-08-10 | 2022-08-10 | Automobile exhaust treatment device, automobile exhaust emission device, engine and automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218717075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116850776A (en) * | 2023-07-18 | 2023-10-10 | 荣成市化工总厂有限公司 | Control method and device for industrial tail gas collecting device |
-
2022
- 2022-08-10 CN CN202222105761.6U patent/CN218717075U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116850776A (en) * | 2023-07-18 | 2023-10-10 | 荣成市化工总厂有限公司 | Control method and device for industrial tail gas collecting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP3565035B2 (en) | NOx reduction system for combustion exhaust gas | |
| CN107747505B (en) | System for regenerating DPF (diesel particulate filter) alternately by utilizing engine exhaust and control method | |
| CN108678839B (en) | DPF air supplementing and regenerating system and method based on brake energy recovery | |
| JP3531489B2 (en) | NOx reduction system for flue gas | |
| CN211819579U (en) | Diesel engine and aftertreatment system thereof | |
| CN218717075U (en) | Automobile exhaust treatment device, automobile exhaust emission device, engine and automobile | |
| CN111749773A (en) | Tail gas emission control system of non-road diesel engine | |
| CN101709662A (en) | Diesel engine exhausting after-treatment device and treatment method thereof | |
| CN211819601U (en) | Control system for realizing ultralow emission of gas engine | |
| CN201902256U (en) | Engine exhaust post-treatment system | |
| JP2675405B2 (en) | Engine exhaust gas purification device | |
| WO2015074386A1 (en) | Air injection system for reducing pollutant emission | |
| CN111322145A (en) | Control method and system for realizing ultralow emission of gas engine | |
| CN113202603B (en) | Tail gas processing apparatus who takes tail gas preliminary treatment for non-road diesel engine | |
| CN102383902B (en) | Control and treatment method and system for emission of non-electric-control diesel engine | |
| CN206513421U (en) | A kind of discharge post-treatment system applied to petrol engine | |
| JP2933644B2 (en) | Engine exhaust gas purification device | |
| CN214787621U (en) | High-efficient natural gas engine aftertreatment system | |
| CN112879128B (en) | Method for promoting diesel engine to realize energy conservation and emission reduction based on liquid ammonia technology | |
| CN212296580U (en) | Tail gas emission control system of non-road diesel engine | |
| CN211737260U (en) | Emission control device of equivalent combustion gas engine | |
| CN203847215U (en) | Intelligent exhaust temperature increasing system of supercharged diesel engine | |
| CN111322144A (en) | Emission control method and device of equivalent-burning gas engine | |
| CN220487700U (en) | Aftertreatment device, engine exhaust system, and working machine | |
| WO2013105221A1 (en) | Exhaust purifier device for internal combustion engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |