CN205243595U - Engine exhaust post -treatment system - Google Patents
Engine exhaust post -treatment system Download PDFInfo
- Publication number
- CN205243595U CN205243595U CN201520926238.7U CN201520926238U CN205243595U CN 205243595 U CN205243595 U CN 205243595U CN 201520926238 U CN201520926238 U CN 201520926238U CN 205243595 U CN205243595 U CN 205243595U
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- China
- Prior art keywords
- cavity
- hybrid chamber
- assembly
- treatment system
- communicated
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
Abstract
The utility model provides an engine exhaust post -treatment system which includes first aftertreatment subassembly, first hybrid chamber subassembly, second aftertreatment subassembly, second hybrid chamber subassembly and intercommunication the third hybrid chamber subassembly of first, second hybrid chamber subassembly, second hybrid chamber subassembly including have interior cavity the casing, lie in the internal guide plate of inner chamber and being located the break plate in guide plate low reaches, wherein, the guide plate will interior cavity is separated one formation and is lain in the guide plate with cavity between the break plate, the guide plate is curved curved in order to incite somebody to action the cavity formation is for being close to the first cavity that enters the mouth and keeping away from the second cavity of entry, first cavity with second cavity intercommunication, first cavity bulky in the volume of second cavity to do benefit to the evenly distributed of exhaust mixture, the break plate be equipped with a plurality of through -holes be beneficial to the exhaust mixture pass through.
Description
Technical field
The utility model relates to a kind of engine exhaust after-treatment system.
Background technology
Engine exhaust after-treatment system (for example diesel exhaust aftertreatment system) is mainly the device for poisonous in processing or evolution exhaust and harmful substance. Harmful toxic matter in exhaust mainly comprises hydrocarbon, carbon monoxide, nitrogen oxide and particle etc.
In prior art, there are employing diesel oxidation catalyst (DOC), diesel particulate trap (DPF) and the combined scheme of selective catalytic reducing agent (SCR) to improve the usefulness of vent gas treatment. In a kind of scheme, described oxidized form catalyst is connected and is arranged in the first housing with grain catcher, and in addition the first cavity being communicated with this first housing is set; Described selective catalytic reducing agent is arranged in the second housing, and in addition the second cavity being communicated with this second housing is set; Then by connecting pipe, described first, second cavity is together in series. Exhaust and urea droplets are mixed in connecting pipe, and mixture enters the second cavity subsequently, then by selective catalytic reducing agent, to reduce harmful substance. But the mixture of exhaust and urea droplets is entering after the second cavity, skewness, and then can not make mixture uniformly by described selective catalytic reducing agent, this has reduced treatment effeciency.
Utility model content
The purpose of this utility model is to provide one can make exhaust and urea liquid realize more mixed uniformly engine exhaust after-treatment system.
For achieving the above object, the utility model adopts following technical scheme: a kind of engine exhaust after-treatment system, and it comprises the first aftertreatment assembly, the first hybrid chamber assembly being communicated with described the first aftertreatment assembly, the second aftertreatment assembly being arranged side by side with described the first aftertreatment assembly, the second hybrid chamber assembly being communicated with described the second aftertreatment assembly and be communicated with the 3rd hybrid chamber assembly of described first, second hybrid chamber assembly; Described the first aftertreatment assembly is realized and being connected by described first, second, third hybrid chamber assembly with described the second aftertreatment assembly; Described the second hybrid chamber assembly comprise have inner chamber body housing, be positioned at the deflector of described inner chamber body and be positioned at the distribution plate in described deflector downstream, wherein, described inner chamber body is separated to form a cavity between described deflector and described distribution plate by described deflector, described deflector is bending described cavity is formed as to the first cavity of close entrance and the second cavity away from described entrance, described the first cavity is communicated with described the second cavity, and the volume of described the first cavity is greater than the volume of described the second cavity; Described distribution plate is provided with the mixture that some through holes are beneficial to exhaust and urea droplets to be passed through.
As the further improved technical scheme of the utility model, described deflector is provided with to be welded on the some welding pawls in described housing.
As the further improved technical scheme of the utility model, described the 3rd hybrid chamber assembly from the side or outer peripheral face realize and being communicated with described cavity.
As the further improved technical scheme of the utility model, described deflector is provided with in position at least partly corresponding to the curved portions of described the first cavity and in position at least partly corresponding to the flat part of described the second cavity.
As the further improved technical scheme of the utility model, described the 3rd hybrid chamber assembly is realized and being communicated with described cavity from described side, described deflector is provided with the depressed part being connected with described curved portions, and described depressed part aligns with described the 3rd hybrid chamber assembly in position.
As the further improved technical scheme of the utility model, described the 3rd hybrid chamber assembly is realized and being communicated with described cavity from described outer peripheral face, and described curved portions is S-shaped.
As the further improved technical scheme of the utility model, described the first aftertreatment assembly comprises diesel oxidation catalyst and/or diesel particulate trap, and described the second aftertreatment assembly comprises selective catalytic reducing agent.
As the further improved technical scheme of the utility model, described the 3rd hybrid chamber assembly comprises the mixing tube being communicated with described the first hybrid chamber assembly, and described mixing tube comprises the inner chamber body of hollow, circumferential some fins, the some flutings that are communicated with corresponding to described some fins and with described inner chamber body and the side that is positioned at described fin distributing in peripheral and edge that is centered around described inner chamber body and some perforates of close urea nozzle installation portion.
As the further improved technical scheme of the utility model, described the 3rd hybrid chamber assembly comprises at least one static mixer.
As the further improved technical scheme of the utility model, described welding pawl is perpendicular to described deflector.
Compared to prior art, the utility model is by deflector and distribution plate are set, and described deflector is bending to form the first cavity and the second cavity, and the volume of described the first cavity is greater than the volume of described the second cavity. So arrange, in conjunction with the impact of exhaust flow rate, can make vent ratio be evenly distributed in described first, second cavity. The mixture that some through holes of described distribution plate are beneficial to exhaust and urea droplets passes through uniformly.
Brief description of the drawings
Fig. 1 is the schematic perspective view of the utility model engine exhaust after-treatment system at the first embodiment.
Fig. 2 is the schematic perspective view of another angle of Fig. 1.
Fig. 3 is the part three-dimensional exploded view of Fig. 2.
Fig. 4 is the part three-dimensional exploded view of Fig. 1.
Fig. 5 is the three-dimensional exploded view of the second hybrid chamber assembly in Fig. 2.
Fig. 6 is the three-dimensional exploded view of another angle of Fig. 5.
Fig. 7 is the generalized section along A-A line in Fig. 2.
Fig. 8 is the schematic perspective view of the utility model engine exhaust after-treatment system at the second embodiment.
Fig. 9 is the three-dimensional exploded view of the second hybrid chamber in Fig. 8.
Figure 10 is the three-dimensional exploded view of another angle of Fig. 9.
Figure 11 is the generalized section along B-B line in Fig. 8.
Detailed description of the invention
Shown in please refer to the drawing 1 to Fig. 4, the utility model has disclosed a kind of engine exhaust after-treatment system 100, and it comprises the first aftertreatment assembly 1, the first hybrid chamber assembly 2 being communicated with described the first aftertreatment assembly 1, the second aftertreatment assembly 3 being arranged side by side with described the first aftertreatment assembly 1, the second hybrid chamber assembly 4 being communicated with described the second aftertreatment assembly 3 and be communicated with the 3rd hybrid chamber assembly 5 of described first, second hybrid chamber assembly 2,4. Described the first aftertreatment assembly 1 is realized and being connected by described first, second, third hybrid chamber assembly 2,4,5 with described the second aftertreatment assembly 3.
In the illustrated embodiment of the utility model, described the first aftertreatment assembly 1 comprises the first housing 11, be installed on oxidized form catalyst (DOC) 12 in described the first housing 11, be installed on the grain catcher (DPF) 13 in described the first housing 11 and be positioned at the exhaust gas intake port 14 of described oxidized form catalyst 12 upstreams. Wherein, described oxidized form catalyst 12 is positioned at the upstream of described grain catcher 13, so that suitable temperature to be provided in the time that described grain catcher 13 is regenerated.
In the illustrated embodiment of the utility model, described the second aftertreatment assembly 3 comprises the second housing 31, is installed on the selective catalytic reducing agent 32 in described the second housing 31 and is positioned at the air exit 33 in described selective catalytic reducing agent 32 downstreams.
In illustrated the first embodiment of the utility model, described the first hybrid chamber assembly 2 is roughly the same with the shape of described the second hybrid chamber assembly 4. Described the first hybrid chamber assembly 2 is in order to by described the 3rd hybrid chamber assembly 5 that leads from the exhaust of described the first aftertreatment assembly 1. Described the first hybrid chamber assembly 2 is just being provided with urea nozzle installation portion 21 to the position of described the 3rd hybrid chamber assembly 5, in order to urea nozzle to be installed.
Shown in please refer to the drawing 7, in illustrated the first embodiment of the utility model, described the 3rd hybrid chamber assembly 5 comprises the mixing tube 51 being communicated with described the first hybrid chamber assembly 2. Described mixing tube 51 comprises the inner chamber body 52 of hollow, circumferential some fins 53, the some flutings 54 that are communicated with corresponding to described some fins 53 and with described inner chamber body 52 and the side that is positioned at described fin 53 distributing in peripheral and edge that is centered around described inner chamber body 52 and some perforates 55 of close urea nozzle installation portion 21.
Described the second hybrid chamber assembly 4 comprise have inner chamber body 411 housing 41, be positioned at the deflector 42 of described inner chamber body 411 and be positioned at the distribution plate 43 in described deflector 42 downstreams. Wherein, described inner chamber body 411 is separated to form a cavity 412 between described deflector 42 and described distribution plate 43 by described deflector 42. Described deflector 42 is bending described cavity 412 is formed as to the first cavity 4121 of close entrance 44 and the second cavity 4122 away from described entrance 44, described the first cavity 4121 is communicated with described the second cavity 4122, and the volume of described the first cavity 4121 is greater than the volume of described the second cavity 4122. Described distribution plate 43 is provided with the mixture that some through holes 431 are beneficial to exhaust and urea droplets to be passed through.
Shown in please refer to the drawing 7, in illustrated the first embodiment of the utility model, described the 3rd hybrid chamber assembly 5 from the side (for example left and right side) is realized and being communicated with described cavity 412.
Shown in please refer to the drawing 5 to Fig. 7, described deflector 42 is provided with to be welded on the some welding pawls 421 in described housing 41, and described welding pawl 421 is perpendicular to described deflector 42. Described deflector 42 be provided with in position at least partly corresponding to the curved portions 422 of described the first cavity 4121, from the upwardly extending depressed part 423 of described curved portions 422 and from described curved portions 422 flat part 424 to downward-extension. Described depressed part 423 aligns with described the 3rd hybrid chamber assembly 5 in position. Described flat part 424 is in position at least partly corresponding to described the second cavity 4122. Described depressed part 423 is in order to block the impact of mixing exhaust, and mixing exhaust is full of uniformly to described the first cavity 4121 and the second cavity 4122 under the guiding of curved portions 422 and flat part 424.
It should be noted that: if deflector is not set, the mixing exhaust of the overwhelming majority can arrive the bottom of described inner chamber body 411 under the pressure at expulsion of engine, and this is unfavorable for being uniformly distributed. The utility model is set to be less than the second cavity 4122 by the volume of the first cavity 4121 near described entrance 44, to realize the adjustment to mixing exhaust.
Shown in please refer to the drawing 8 to Figure 11, the main distinction of the second embodiment of the present utility model and the first embodiment is first, second, third hybrid chamber assembly 2,4,5. Wherein, described first, second hybrid chamber assembly 2,4 is roughly cylindric. Described the 3rd hybrid chamber assembly 5 is realized and being communicated with described cavity 412 from outer peripheral face. Described curved portions is S-shaped. Described the 3rd hybrid chamber assembly 5 comprises at least one static mixer 56.
In addition, above embodiment is only for illustrating the utility model and the described technical scheme of unrestricted the utility model, understanding of this description should be taking person of ordinary skill in the field as basis, although this description has been described in detail the utility model with reference to the above embodiments, but, those of ordinary skill in the art is to be understood that, person of ordinary skill in the field still can modify or be equal to replacement the utility model, and all do not depart from technical scheme and the improvement thereof of spirit and scope of the present utility model, all should be encompassed within the scope of claim of the present utility model.
Claims (10)
1. an engine exhaust after-treatment system, it comprises the first aftertreatment assembly, the first hybrid chamber assembly being communicated with described the first aftertreatment assembly, the second aftertreatment assembly being arranged side by side with described the first aftertreatment assembly, the second hybrid chamber assembly being communicated with described the second aftertreatment assembly and be communicated with the 3rd hybrid chamber assembly of described first, second hybrid chamber assembly; Described the first aftertreatment assembly is realized and being connected by described first, second, third hybrid chamber assembly with described the second aftertreatment assembly; It is characterized in that: described the second hybrid chamber assembly comprise have inner chamber body housing, be positioned at the deflector of described inner chamber body and be positioned at the distribution plate in described deflector downstream, wherein, described inner chamber body is separated to form a cavity between described deflector and described distribution plate by described deflector, described deflector is bending described cavity is formed as to the first cavity of close entrance and the second cavity away from described entrance, described the first cavity is communicated with described the second cavity, and the volume of described the first cavity is greater than the volume of described the second cavity; Described distribution plate is provided with the mixture that some through holes are beneficial to exhaust and urea droplets to be passed through.
2. engine exhaust after-treatment system as claimed in claim 1, is characterized in that: described deflector is provided with to be welded on the some welding pawls in described housing.
3. engine exhaust after-treatment system as claimed in claim 1, is characterized in that: described the 3rd hybrid chamber assembly from the side or outer peripheral face realize and being communicated with described cavity.
4. engine exhaust after-treatment system as claimed in claim 3, is characterized in that: described deflector is provided with in position at least partly corresponding to the curved portions of described the first cavity and in position at least partly corresponding to the flat part of described the second cavity.
5. engine exhaust after-treatment system as claimed in claim 4, it is characterized in that: described the 3rd hybrid chamber assembly is realized and being communicated with described cavity from described side, described deflector is provided with the depressed part being connected with described curved portions, and described depressed part aligns with described the 3rd hybrid chamber assembly in position.
6. engine exhaust after-treatment system as claimed in claim 4, is characterized in that: described the 3rd hybrid chamber assembly is realized and being communicated with described cavity from described outer peripheral face, and described curved portions is S-shaped.
7. engine exhaust after-treatment system as claimed in claim 1, is characterized in that: described the first aftertreatment assembly comprises diesel oxidation catalyst and/or diesel particulate trap, and described the second aftertreatment assembly comprises selective catalytic reducing agent.
8. engine exhaust after-treatment system as claimed in claim 1, it is characterized in that: described the 3rd hybrid chamber assembly comprises the mixing tube being communicated with described the first hybrid chamber assembly, described mixing tube comprises the inner chamber body of hollow, circumferential some fins, the some flutings that are communicated with corresponding to described some fins and with described inner chamber body and the side that is positioned at described fin distributing in peripheral and edge that is centered around described inner chamber body and some perforates of close urea nozzle installation portion.
9. engine exhaust after-treatment system as claimed in claim 1, is characterized in that: described the 3rd hybrid chamber assembly comprises at least one static mixer.
10. engine exhaust after-treatment system as claimed in claim 2, is characterized in that: described welding pawl is perpendicular to described deflector.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520926238.7U CN205243595U (en) | 2015-11-19 | 2015-11-19 | Engine exhaust post -treatment system |
| PCT/CN2016/105816 WO2017084548A1 (en) | 2015-11-19 | 2016-11-15 | Exhaust aftertreatment system for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520926238.7U CN205243595U (en) | 2015-11-19 | 2015-11-19 | Engine exhaust post -treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205243595U true CN205243595U (en) | 2016-05-18 |
Family
ID=55942676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520926238.7U Active CN205243595U (en) | 2015-11-19 | 2015-11-19 | Engine exhaust post -treatment system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN205243595U (en) |
| WO (1) | WO2017084548A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017084548A1 (en) * | 2015-11-19 | 2017-05-26 | 天纳克（苏州）排放系统有限公司 | Exhaust aftertreatment system for engine |
| WO2017206946A1 (en) * | 2016-06-03 | 2017-12-07 | 天纳克（苏州）排放系统有限公司 | Mixing chamber assembly |
| WO2017206945A1 (en) * | 2016-06-03 | 2017-12-07 | 天纳克（苏州）排放系统有限公司 | Engine exhaust aftertreatment system |
| WO2018082379A1 (en) * | 2016-11-04 | 2018-05-11 | 天纳克（苏州）排放系统有限公司 | Box-type exhaust gas after-treatment device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8683790B2 (en) * | 2009-11-10 | 2014-04-01 | GM Global Technology Operations LLC | Nozzle diffuser mixer |
| KR101534867B1 (en) * | 2009-11-11 | 2015-07-07 | 기아자동차주식회사 | Apparatus for integrated control of HVAC for vehicle |
| CN202012386U (en) * | 2010-12-15 | 2011-10-19 | 杭州银轮科技有限公司 | Mixing device for urea SCR system of diesel engine |
| CN203452872U (en) * | 2013-03-08 | 2014-02-26 | 埃贝施佩歇尔排气技术有限及两合公司 | Inflow chamber used for exhaust catalyst and exhaust purifying system used for motor vehicle |
| US9816422B2 (en) * | 2013-04-11 | 2017-11-14 | Perkins Engines Company Limited | Flowhood and emissions cleaning module |
| CN105247187B (en) * | 2013-04-11 | 2018-06-29 | 珀金斯发动机有限公司 | Emission cleaning module and installing mechanism |
| CN205243595U (en) * | 2015-11-19 | 2016-05-18 | 天纳克（苏州）排放系统有限公司 | Engine exhaust post -treatment system |
-
2015
- 2015-11-19 CN CN201520926238.7U patent/CN205243595U/en active Active
-
2016
- 2016-11-15 WO PCT/CN2016/105816 patent/WO2017084548A1/en active Application Filing
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017084548A1 (en) * | 2015-11-19 | 2017-05-26 | 天纳克（苏州）排放系统有限公司 | Exhaust aftertreatment system for engine |
| WO2017206946A1 (en) * | 2016-06-03 | 2017-12-07 | 天纳克（苏州）排放系统有限公司 | Mixing chamber assembly |
| WO2017206945A1 (en) * | 2016-06-03 | 2017-12-07 | 天纳克（苏州）排放系统有限公司 | Engine exhaust aftertreatment system |
| CN107461239A (en) * | 2016-06-03 | 2017-12-12 | 天纳克（苏州）排放系统有限公司 | Hybrid chamber component |
| CN107461250A (en) * | 2016-06-03 | 2017-12-12 | 天纳克（苏州）排放系统有限公司 | Engine exhaust aftertreatment system |
| CN109404103A (en) * | 2016-06-03 | 2019-03-01 | 天纳克（苏州）排放系统有限公司 | Mixing arrangement |
| WO2018082379A1 (en) * | 2016-11-04 | 2018-05-11 | 天纳克（苏州）排放系统有限公司 | Box-type exhaust gas after-treatment device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017084548A1 (en) | 2017-05-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |