CN102322318A - Automobile tail gas treatment device - Google Patents
Automobile tail gas treatment device Download PDFInfo
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- CN102322318A CN102322318A CN201110211619A CN201110211619A CN102322318A CN 102322318 A CN102322318 A CN 102322318A CN 201110211619 A CN201110211619 A CN 201110211619A CN 201110211619 A CN201110211619 A CN 201110211619A CN 102322318 A CN102322318 A CN 102322318A
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- valve
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- exhaust gas
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- bypass inlet
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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
- 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
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- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
The invention relates to an automobile tail gas treatment device. The device comprises a tail gas treatment device shell, a diesel particulate filter (DPF) carrier and a diesel oxidation catalyst (DOC) carrier, wherein the DOC carrier is arranged on a central axis in the tail gas treatment device shell; a controlled bypass inlet regulating valve is positioned at a bypass inlet in the tail gas treatment device shell; a controlled inlet regulating valve of the DOC carrier is positioned at the inlet of the tail gas treatment device shell; and an electronic control unit (ECU) of an automobile controls the controlled bypass inlet regulating valve and the controlled inlet regulating valve of the DOC carrier. A DPF technology can be applied under the condition that the oil quality of diesel is complex in China at present, and the environment-friendly requirement of automobile tail gas emission is met; and the poisoning phenomenon of a DOC is avoided, so the content of noble metal in the catalyst can be reduced, and the cost of the catalyst is reduced.
Description
Technical field
The present invention relates to a kind of diesel locomotive draining technology field, relate to a kind of automobile exhaust gas processing apparatus specifically.
Background technique
Along with Chinese exhaust emission standard constantly adds sternly, automobile-used tail-gas after treatment apparatus is used by a large amount of.As in state four and state's five discharge phase, the carbon granule of 90% above diesel engine generation can filter in grain catcher system (being called for short the DPF system), thoroughly changes the phenomenon of diesel-oil vehicle over-emitting black exhaust.This technology is the mainstream technology route of states such as American-European and Japan, transported by ripe, and be the diesel oil that vehicle must use low sulfur content but be to use the prerequisite of this technology, must be lower than 50PPM like the sulphur content of diesel oil.But because Chinese domestic oil product is widely different, on market, use, can cause post-processing catalyst to poison like this, lose activity, reprocessing is damaged as also having the diesel oil of 1400PPM sulphur content at present.
Air communication is crossed the granule capturing system, and particle is constantly filtered, and in the DPF system, stores.Carbon granule can be deposited among the DPF after vehicle operating a period of time, at this moment need be to the DPF de-carbon that heats up.Commonly used is not have the HC and the CO that have burnt to carry out oxidation through oxidation catalyzer DOC to motor now, produces high temperature.But the sulphide in the fuel oil can make the noble metal among the oxidation catalyzer DOC poison, can't oxidation HC and CO, can't produce high temperature like this, and the effect of the eliminating particle of DPF can't be carried out.
Summary of the invention
In order to overcome above-mentioned defective, the technical problem that the present invention will solve provides a kind of automobile exhaust gas processing apparatus.Can avoid oxidation catalyzer DOC carrier to poison, satisfy national environmental protection portion the motor vehicle exhaust emission new demand.
For solving the problems of the technologies described above, the present invention is achieved through adopting following technological scheme:
A kind of automobile exhaust gas processing apparatus; Comprise the exhaust gas processing device housing; Grain catcher DPF carrier; Oxidation catalyzer DOC carrier, said oxidation catalyzer DOC carrier be located at the exhaust gas processing device housing inside and with its coaxial line, controlled bypass inlet modulating valve is positioned at the bypass inlet of said exhaust gas processing device housing; Controllable oxidization catalyst converter DOC carrier inlet adjusting valve is positioned at said exhaust gas processing device housing ingress, and said controlled bypass inlet modulating valve and controllable oxidization catalyst converter DOC carrier inlet adjusting valve are by the ECU control of automobile.
Said controlled bypass inlet modulating valve and said controllable oxidization catalyst converter DOC carrier inlet adjusting valve are discoideus valve and the shared rotating shaft of the valve plate core of the two, and the plane at the valve plate core place of said controlled bypass inlet modulating valve is vertical with the plane at the valve plate core place of said controllable oxidization catalyst converter DOC carrier inlet adjusting valve.
Said controlled bypass inlet modulating valve has two, and the valve plate core of two controlled bypass inlet modulating valve and is located at the both sides of said controllable oxidization catalyst converter DOC carrier inlet adjusting valve respectively in same plane.
The shared valve plate core rotating shaft of the valve plate core of said controlled bypass inlet modulating valve and said controllable oxidization catalyst converter DOC carrier inlet adjusting valve valve plate core is by solenoid-driven.
The invention has the beneficial effects as follows:
Grain catcher DPF technology can be survived under the complicated situation at the present diesel fuel oil of China very much; Can reduce simultaneously because oxidation catalyzer DOC oxidability is strong excessively; Cause sulphate to generate too much, occur the white cigarette of high concentration when causing the grain catcher dpf regeneration.Simultaneously also can reduce the nitrogen dioxide growing amount, satisfy national environmental protection portion the motor vehicle exhaust emission new demand.Owing to need not consider oxidation catalyzer DOC intoxicating phenomenon,, lower the cost of catalyst converter so can reduce the content of catalyst converter noble metal.
Description of drawings
Fig. 1 is one of structural principle schematic representation of the present invention (when automobile normally moves)
Fig. 2 is two (during the dpf regeneration processes) of structural principle schematic representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified
Embodiment: referring to Fig. 1, Fig. 2.
A kind of automobile exhaust gas processing apparatus; Comprise exhaust gas processing device housing 5; Grain catcher DPF carrier 4; Oxidation catalyzer DOC carrier 3, said oxidation catalyzer DOC carrier 3 be located at exhaust gas processing device housing 5 inside and with its coaxial line, controlled bypass inlet modulating valve 1 is positioned at the bypass inlet of said exhaust gas processing device housing 5; Controllable oxidization catalyst converter DOC carrier inlet adjusting valve 2 is positioned at said exhaust gas processing device housing 5 ingress, said controlled bypass inlet modulating valve 1 and the ECU control of controllable oxidization catalyst converter DOC carrier inlet adjusting valve 2 by automobile.
Said controlled bypass inlet modulating valve 1 is discoideus valve and the shared rotating shaft of the valve plate core of the two with said controllable oxidization catalyst converter DOC carrier inlet adjusting valve 2, and the plane at the valve plate core place of said controlled bypass inlet modulating valve 1 is vertical with the plane at the valve plate core place of said controllable oxidization catalyst converter DOC carrier inlet adjusting valve 2.
Said controlled bypass inlet modulating valve 1 has two, and the valve plate core of two controlled bypass inlet modulating valve 1 and is located at the both sides of said controllable oxidization catalyst converter DOC carrier inlet adjusting valve respectively in same plane.
The shared valve plate core rotating shaft of the valve plate core of said controlled bypass inlet modulating valve 1 and said controllable oxidization catalyst converter DOC carrier inlet adjusting valve 2 valve plate cores is by solenoid-driven.
For the ease of understanding, provide working procedure principle of the present invention below:
(1), during automobile normal running, grain catcher DPF does not have regeneration
Fig. 1 is the normal run time organization principle schematic of automobile of the present invention, the state that controlled bypass inlet modulating valve 1 is opened, and bypass line is open-minded, controllable oxidization catalyst converter DOC carrier inlet adjusting valve 2 closing state, oxidation catalyzer DOC carrier path blockade.Air communication is crossed by-pass to grain catcher DPF carrier, can avoid oxidation catalyzer DOC carrier to contact with the waste gas of high sulfur content like this, reduces the poisoning probability of oxidation catalyzer DOC carrier.
(2), automobile is in the grain catcher dpf regeneration process
Fig. 2 is the structural principle schematic representation of PDF regenerative process of the present invention.The ECU issuing command of automobile drives the solenoid valve (not shown), and solenoid valve is opened; Drive vacuum driven mechanism and produce action, drive the valve plate mandrel, thereby drive whole valve plate core group rotation an angle of 90 degrees degree; Controlled bypass inlet modulating valve 1 cuts out; Bypass line is closed, and controllable oxidization catalyst converter DOC carrier inlet adjusting valve 2 is opened, and oxidation catalyzer DOC carrier path is opened.Air communication peroxidating catalyst converter DOC carrier, CO and HC are oxidized, and at the high temperature of grain catcher DPF carrier inlet generation 600 degree, the carbon granule in the grain catcher DPF carrier is burnt.
Grain catcher DPF is because the recovery time relative time is short, and general about 10 minutes, and temperature high (about general 500 degree), sulphate is decomposed, and is not easy on the noble metal attached to oxidation catalyzer DOC, so can avoid catalyst poisoning.
What embodiments of the invention were announced is preferred embodiment; But be not limited thereto, those of ordinary skill in the art is very easily according to the foregoing description; Understand spirit of the present invention; And make different amplifications and variation, but only otherwise break away from spirit of the present invention, all in protection scope of the present invention.
Claims (4)
1. automobile exhaust gas processing apparatus; Comprise exhaust gas processing device housing (5); Grain catcher DPF carrier (4); Oxidation catalyzer DOC carrier (3); It is characterized in that: said oxidation catalyzer DOC carrier (3) be located at exhaust gas processing device housing (5) inside and with its coaxial line; Controlled bypass inlet modulating valve (1) is positioned at the bypass inlet of said exhaust gas processing device housing (5), and controllable oxidization catalyst converter DOC carrier inlet adjusting valve (2) is positioned at said exhaust gas processing device housing (5) ingress, said controlled bypass inlet modulating valve (1) and the ECU control of controllable oxidization catalyst converter DOC carrier inlet adjusting valve (2) by automobile.
2. a kind of automobile exhaust gas processing apparatus according to claim 1; It is characterized in that: said controlled bypass inlet modulating valve (1) is discoideus valve and the shared rotating shaft of the valve plate core of the two with said controllable oxidization catalyst converter DOC carrier inlet adjusting valve (2), and the plane at the valve plate core place of said controlled bypass inlet modulating valve (1) is vertical with the plane at the valve plate core place of said controllable oxidization catalyst converter DOC carrier inlet adjusting valve (2).
3. a kind of automobile exhaust gas processing apparatus according to claim 2; It is characterized in that: said controlled bypass inlet modulating valve (1) has two; The valve plate core of two controlled bypass inlet modulating valve (1) and is located at the both sides of said controllable oxidization catalyst converter DOC carrier inlet adjusting valve (2) respectively in same plane.
4. a kind of automobile exhaust gas processing apparatus according to claim 2 is characterized in that: the shared valve plate core rotating shaft of the valve plate core of said controlled bypass inlet modulating valve (1) and said controllable oxidization catalyst converter DOC carrier inlet adjusting valve (2) valve plate core is by solenoid-driven.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110211619.3A CN102322318B (en) | 2011-07-27 | 2011-07-27 | Automobile tail gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110211619.3A CN102322318B (en) | 2011-07-27 | 2011-07-27 | Automobile tail gas treatment device |
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| Publication Number | Publication Date |
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| CN102322318A true CN102322318A (en) | 2012-01-18 |
| CN102322318B CN102322318B (en) | 2014-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110211619.3A Active CN102322318B (en) | 2011-07-27 | 2011-07-27 | Automobile tail gas treatment device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279028A (en) * | 2013-07-01 | 2015-01-14 | 福特环球技术公司 | Arrangement for exhaust-gas aftertreatment system for an internal combustion engine and method for operating the exhaust-gas aftertreatment system arrangement |
| CN106103948A (en) * | 2014-03-05 | 2016-11-09 | 丰田自动车株式会社 | For suppressing the control device of internal combustion engine that white cigarette discharges |
| CN106703944A (en) * | 2015-11-18 | 2017-05-24 | 福特环球技术公司 | System and method for bypassing a particulate filter |
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| CN1405435A (en) * | 2001-09-07 | 2003-03-26 | 三菱自动车工业株式会社 | Engine exhaust purification apparatus |
| WO2004018850A1 (en) * | 2002-08-26 | 2004-03-04 | Hitachi, Ltd. | Apparatus and method for clarifying exhaust gas of diesel engine |
| CN1791736A (en) * | 2003-05-22 | 2006-06-21 | 日野自动车株式会社 | Exhaust gas purifier |
| CN2911201Y (en) * | 2006-05-29 | 2007-06-13 | 周松奎 | Tail gas purifier for diesel engine |
| JP2007239699A (en) * | 2006-03-10 | 2007-09-20 | Mitsubishi Motors Corp | Vehicle exhaust emission control device |
| US20110011062A1 (en) * | 2009-07-15 | 2011-01-20 | Olivier Lepreux | Method and system for controlling active regeneration of a diesel particulate filter |
| CN202157844U (en) * | 2011-07-27 | 2012-03-07 | 江铃汽车股份有限公司 | Automobile exhaust gas processing device |
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2011
- 2011-07-27 CN CN201110211619.3A patent/CN102322318B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1405435A (en) * | 2001-09-07 | 2003-03-26 | 三菱自动车工业株式会社 | Engine exhaust purification apparatus |
| WO2004018850A1 (en) * | 2002-08-26 | 2004-03-04 | Hitachi, Ltd. | Apparatus and method for clarifying exhaust gas of diesel engine |
| CN1791736A (en) * | 2003-05-22 | 2006-06-21 | 日野自动车株式会社 | Exhaust gas purifier |
| JP2007239699A (en) * | 2006-03-10 | 2007-09-20 | Mitsubishi Motors Corp | Vehicle exhaust emission control device |
| CN2911201Y (en) * | 2006-05-29 | 2007-06-13 | 周松奎 | Tail gas purifier for diesel engine |
| US20110011062A1 (en) * | 2009-07-15 | 2011-01-20 | Olivier Lepreux | Method and system for controlling active regeneration of a diesel particulate filter |
| CN202157844U (en) * | 2011-07-27 | 2012-03-07 | 江铃汽车股份有限公司 | Automobile exhaust gas processing device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104279028A (en) * | 2013-07-01 | 2015-01-14 | 福特环球技术公司 | Arrangement for exhaust-gas aftertreatment system for an internal combustion engine and method for operating the exhaust-gas aftertreatment system arrangement |
| CN104279028B (en) * | 2013-07-01 | 2018-08-28 | 福特环球技术公司 | The device and its method of operation of the exhaust after treatment system of internal combustion engine |
| CN106103948A (en) * | 2014-03-05 | 2016-11-09 | 丰田自动车株式会社 | For suppressing the control device of internal combustion engine that white cigarette discharges |
| US10302029B2 (en) | 2014-03-05 | 2019-05-28 | Toyota Jidosha Kabushiki Kaisha | Control apparatus for internal combustion engine suppressing white smoke emissions |
| CN106703944A (en) * | 2015-11-18 | 2017-05-24 | 福特环球技术公司 | System and method for bypassing a particulate filter |
| CN106703944B (en) * | 2015-11-18 | 2020-08-11 | 福特环球技术公司 | System and method for bypassing a particulate filter |
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| CN102322318B (en) | 2014-04-30 |
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