CN108868983B - Integrated SCR assembly - Google Patents
Integrated SCR assembly Download PDFInfo
- Publication number
- CN108868983B CN108868983B CN201810524829.XA CN201810524829A CN108868983B CN 108868983 B CN108868983 B CN 108868983B CN 201810524829 A CN201810524829 A CN 201810524829A CN 108868983 B CN108868983 B CN 108868983B
- Authority
- CN
- China
- Prior art keywords
- connecting body
- air inlet
- box body
- hole
- exhaust pipe
- 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
Classifications
-
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
-
- 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
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
-
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
-
- 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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
- F01N13/008—Mounting or arrangement of exhaust sensors in or on exhaust apparatus
-
- 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
- F01N3/18—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 methods of operation; Control
- F01N3/20—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 methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
-
- 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
- F01N2230/00—Combination of silencers and other devices
- F01N2230/02—Exhaust filters
-
- 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
- F01N2230/00—Combination of silencers and other devices
- F01N2230/04—Catalytic converters
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- 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
-
- 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
Abstract
The invention discloses an integrated SCR assembly, which comprises a box body, a DOC, a DPF, an SCR and a silencer, wherein the DOC is connected with the DPF to form a first connecting body; according to the invention, the DOC, the DPF, the SCR and the silencer are integrated together, so that the tail gas can be fully treated, the utilization rate of the whole vehicle arrangement space is improved, compared with the prior art, the DOC, the DPF and the SCR integrated exhaust muffler have more complete functions, and the installation time is saved.
Description
Technical Field
The invention relates to the technical field of automobile exhaust treatment, in particular to an integrated SCR assembly.
Background
in the exhaust system of the whole vehicle, the SCR assembly plays a crucial role, not only needs to eliminate the noise produced by the exhaust system, but also needs to meet the emission standard and reduce the concentration of pollutants in the tail gas, thereby achieving the purpose of purifying the air.
At present, the types of SCR in the exhaust system of a heavy truck mainly include a box type and a barrel type, and the SCR adopting a box type structure becomes the mainstream of the existing after-treatment because the box type has a large integral volume.
With the stricter emission regulations, the responsibility required to be assumed by the SCR system is larger and larger, and the requirement for the SCR device is higher and higher, so that the integrated SCR becomes a necessary trend for the development of the aftertreatment system.
Disclosure of Invention
The invention aims to provide an integrated SCR assembly, which can fully treat tail gas and fully utilize the arrangement space of a whole vehicle to solve the defects in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme:
The utility model provides an integrated form SCR assembly, includes box, DOC, DPF, SCR and silencer, DOC with the DPF meets, constitutes first connector, SCR with the silencer meets, constitutes the second connector, first connector with the second connector all with the box is connected.
Preferably, the exhaust system further comprises a front exhaust pipe and a rear exhaust pipe, the front exhaust pipe is connected with the first connecting body through a first communicating cavity and is connected with the second connecting body through a branch pipe, and the second connecting body is connected with the rear exhaust pipe through a second communicating cavity.
Preferably, the air-conditioning cabinet further comprises an air inlet and an air outlet, one end of the air inlet is connected with the first connecting body, the other end of the air inlet extends out of the cabinet body, one end of the air outlet is connected with the rear exhaust pipe, and the other end of the air outlet extends out of the cabinet body.
Preferably, the box body is a cuboid cavity structure, a first through hole, a second through hole and a third through hole which are parallel to each other are arranged on the box body, and the first connecting body, the second connecting body and the rear exhaust pipe are respectively and correspondingly connected with the box body through the first through hole, the second through hole and the third through hole.
Preferably, the air inlet and the air outlet are arranged on the same side of the box body, and the first communicating cavity and the second communicating cavity are arranged on the other side of the box body.
Preferably, still include urea nozzle device, urea nozzle device includes urea nozzle mount pad and the urea nozzle joint that links to each other, urea nozzle mount pad is located on the box.
Preferably, be equipped with preceding nitrogen oxygen sensor on the air inlet, preceding nitrogen oxygen sensor pass through the installation base with the air inlet is connected.
Preferably, the first connecting body is provided with a front row temperature sensor, a rear row temperature sensor and a front differential pressure sensor.
preferably, a rear nitrogen-oxygen sensor and a particulate matter sensor are arranged on the air outlet.
Preferably, the box body comprises an upper outer plate, a lower outer plate, a front outer plate and a rear outer plate, and the upper outer plate, the lower outer plate, the front outer plate and the rear outer plate enclose the box body.
The invention has the beneficial effects that:
The invention provides an integrated SCR assembly, which comprises a box body, a DOC, a DPF, an SCR and a silencer, wherein the DOC is connected with the DPF to form a first connecting body; according to the invention, the DOC, the DPF, the SCR and the silencer are integrated together, so that the tail gas can be fully treated, the utilization rate of the whole vehicle arrangement space is improved, compared with the prior art, the DOC, the DPF and the SCR integrated exhaust muffler have more complete functions, and the installation time is saved.
Drawings
FIG. 1 is a first isometric view of an integrated SCR assembly of an embodiment of the present invention;
FIG. 2 is a schematic view of a portion of an integrated SCR assembly according to an embodiment of the present invention;
FIG. 3 is a schematic view of the airflow direction of an integrated SCR assembly according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a housing of an integrated SCR assembly according to an embodiment of the present invention;
FIG. 5 is a second isometric view of an integrated SCR assembly according to an embodiment of the present invention;
FIG. 6 is an enlarged schematic view of region A in FIG. 5;
FIG. 7 is a schematic structural view of an air intake of an integrated SCR assembly according to an embodiment of the present invention;
Fig. 8 is a schematic structural diagram of a first connection body of an integrated SCR assembly according to an embodiment of the present invention.
Description of reference numerals:
1-box, 2-DOC, 3-DPF, 4-SCR, 5-muffler, 6-first connector, 7-second connector, 8-front exhaust pipe, 9-rear exhaust pipe, 10-first communication cavity, 11-branch pipe, 12-second communication cavity, 13-air inlet, 14-air outlet, 15-first through hole, 16-second through hole, 17-third through hole, 18-urea nozzle mounting seat, 19-urea nozzle joint, 20-front nitrogen-oxygen sensor, 21-mounting seat, 22-front exhaust temperature sensor, 23-rear exhaust temperature sensor, 24-front differential pressure sensor, 25-rear nitrogen-oxygen sensor and 26-particulate matter sensor.
Detailed Description
the embodiments described below with reference to the drawings are illustrative only and should not be construed as limiting the invention.
as shown in fig. 1 and 2, an embodiment of the present invention provides an integrated SCR assembly, including a case 1, a DOC2, a DPF3, an SCR4, and a muffler 5, wherein the DOC2 is connected to the DPF3 to form a first connecting body 6, the SCR4 is connected to the muffler 5 to form a second connecting body 7, and both the first connecting body 6 and the second connecting body 7 are connected to the case 1. The muffler 5 is preferably a reactive muffler. The surface of box 1 preferably is equipped with the pipeline fixed bolster, the pipeline fixed bolster is "nearly" font structure, and these pipeline fixed bolsters mainly used bearing and restraint pencil's position prevent that the pencil is complicated by labyrinth. Since the conventional DOC2, DPF3, SCR4, and muffler 5 have a columnar structure, the first connecting body 6 and the second connecting body 7 each preferably have a cylindrical structure. Wherein the DOC2 constituting the first connection body 6 and the DPF3 communicate with each other, and the SCR4 constituting the second connection body 7 and the muffler 5 communicate with each other. The DOC2 and the DPF3 may be joined by joining their ends and fixing them together by welding or the like, or may be joined by: in the second mode, the DOC2 and the DPF3 are placed in the first cylinder and are in interference fit with the first cylinder, and the DOC2 and the DPF3 are indirectly connected and communicated through the first cylinder, so that the step of welding the DOC 3 and the DPF 2 can be omitted, and damage to the DOC2 and the DPF3 can be prevented. Similarly, the SCR4 and the muffler 5 may be connected by end-to-end connection, and fixed together by welding, or the like, or may be connected by such a way: the SCR4 and the silencer 5 are placed in a second cylinder, the SCR4 and the silencer 5 are in interference fit with the second cylinder, and the SCR4 and the silencer 5 are indirectly connected and communicated through the second cylinder, and in the second mode, the step of welding the SCR4 and the silencer 5 can be omitted, so that the probability of damage to the SCR4 and the silencer 5 is reduced.
The specific working process of the invention is as follows: when the exhaust gas passes through the first connecting body 6, the oxidation catalytic converter, namely DOC2, can perform oxidation catalysis on the exhaust gas, reduce the activation energy of the chemical reaction of HC, CO and SOF in the exhaust gas, enable the substances to perform oxidation reaction with oxygen in the exhaust gas at a lower temperature, and finally convert the substances into CO2and H2O, while oxidizing NO in the exhaust gas to NO2Enough reactants are provided for the passive regeneration of the DPF3 to realize higher DPF3 passive regeneration efficiency, and meanwhile, the particulate matter trap, namely the DPF3 filters and traps particles in the exhaust gas of the diesel engine through diffusion, deposition and impact mechanisms to further purify the exhaust gas, so that when the exhaust gas passes through the second connecting body 7, the noise in the exhaust gas can be eliminated, and NO in the exhaust gas can be further treatedXConverting the nitrogen oxides into nitrogen and water vapor to be discharged into the atmosphere; according to the operation, the DOC2, the DPF3, the SCR4 and the silencer 5 are integrated, so that the tail gas can be fully treated, the utilization rate of the whole vehicle arrangement space is improved, compared with the prior art, the exhaust gas treatment device is complete in function, and the installation time is saved.
In addition to the above structure, as shown in fig. 3, the present invention further includes a front exhaust pipe 8 and a rear exhaust pipe 9, wherein the front exhaust pipe 8 is connected to the first connecting body 6 through a first communicating chamber 10, and is connected to the second connecting body 7 through a branch pipe 11, and the second connecting body 7 is connected to the rear exhaust pipe 9 through a second communicating chamber 12. The first communicating cavity 10 and the second communicating cavity 12 are both cavity structures. The cross sections of the first communicating cavity 10 and the second communicating cavity 12 are pear-shaped, the upper part of the first communicating cavity 10 is narrow, the lower part of the first communicating cavity is wide, the first communicating cavity 10 is placed in a mode of the upper part of the first communicating cavity being narrow, and the second communicating cavity 12 is placed in a mode of the upper part of the second communicating cavity being narrow. The first communicating chamber 10 and the second communicating chamber 12 are preferably identical in structure. The first connection body 6 and the front exhaust duct 8 are preferably perpendicular to the first communication chamber 10, the second connection body 7 and the rear exhaust duct 9 are preferably perpendicular to the second communication chamber 12, and the branch duct 11 is preferably perpendicular to the front exhaust duct 8 and the second connection body 7. Both ends of the branch pipe 11 are communicated with the front exhaust pipe 8 and the second connecting body 7. The front exhaust pipe 8 and the box body 1 are preferably welded through a welding seam, the second connecting body 7 and the second communicating cavity 12 are preferably connected through welding, and two ends of the branch pipe 11 are preferably connected with the front exhaust pipe 8 and the second connecting body 7 through welding, so that the connection reliability of the branch pipe is guaranteed. The first connecting body 6 and the first communicating cavity 10 are preferably connected through a V-shaped clamp, so that the sealing performance and the maintenance convenience of the first connecting body and the first communicating cavity are guaranteed. Of course, the branch pipe 11 and the front exhaust pipe 8 may be an integrally formed structure to save cost and facilitate mass production.
Further, as shown in fig. 1, the present invention further includes an air inlet 13 and an air outlet 14, wherein one end of the air inlet 13 is connected to the first connecting body 6, the other end extends out of the box body 1, one end of the air outlet 14 is connected to the rear exhaust pipe 9, and the other end extends out of the box body 1. The air inlet 13 is preferably connected to an end of the first connecting body 6 remote from the first communicating chamber 10, and the air outlet 14 is preferably connected to an end of the rear exhaust pipe 9 remote from the second communicating chamber 12.
Specifically, as shown in fig. 4, the box body 1 is a rectangular parallelepiped cavity structure, a first through hole 15, a second through hole 16 and a third through hole 17 that are parallel to each other are provided on the box body 1, and the first connecting body 6, the second connecting body 7 and the rear exhaust pipe 9 are respectively and correspondingly connected to the box body 1 through the first through hole 15, the second through hole 16 and the third through hole 17. Reinforcing ribs are preferably provided on the tank 1 to enhance the strength of the overall structure.
As shown in fig. 1 and 2, the air inlet 13 and the air outlet 14 are provided on the same side of the case 1, and the first communicating chamber 10 and the second communicating chamber 12 are provided on the other side of the case 1.
In order to further reduce nitrogen oxides in automobile exhaust, as shown in fig. 5 and 6, the embodiment of the present invention further preferably includes a urea nozzle device, where the urea nozzle device includes a urea nozzle mounting seat 18 and a urea nozzle joint 19 connected with each other, and the urea nozzle mounting seat 18 is disposed on the tank 1. The urea nozzle device is integrated on the box body 1 instead of the exhaust pipe according to the conventional method, and mainly aims to prevent urea from crystallizing in the exhaust pipe and prevent the crystallized urea from spreading to the nozzle to block the nozzle so that the urea cannot be sprayed subsequently.
In order to detect the concentration of the nitrogen oxide in the entering exhaust gas, as shown in fig. 2 and 7, a front nitrogen-oxygen sensor 20 is further disposed on the air inlet 13, and the front nitrogen-oxygen sensor 20 is connected to the air inlet 13 through a mounting base 21. As shown in fig. 7, the air inlet 13 is a stainless steel pipe with a flange, and the air inlet 13 is connected with the box body 1 by welding. The mounting base 21 is of an annular structure and is fixedly connected with the air inlet 13. The front nitrogen-oxygen sensor 20 is connected with the mounting base 21 through threads.
Preferably, as shown in fig. 8, the first connecting body 6 is provided with a front row temperature sensor 22, a rear row temperature sensor 23 and a front differential pressure sensor 24. The front row temperature sensor 22 is arranged between the DOC2 and the air inlet 13, and the rear row temperature sensor 23 and the front differential pressure sensor 24 are arranged on the side wall of the DOC 2. The sensors are connected with the first connecting body 6 through corresponding bases, the sensors are connected with the corresponding bases through threads, and the other ends of the sensors are directly connected with the wiring harness.
in order to determine whether the exhaust gas meets the emission regulations, wherein the concentration of nitrogen oxides and particulate matter is reduced to a low level, the gas outlet 14 is provided with a rear nitrogen-oxygen sensor 25 and a particulate matter sensor 26.
The construction, features and functions of the present invention are described in detail in the embodiments illustrated in the drawings, which are only preferred embodiments of the present invention, but the present invention is not limited by the drawings, and all equivalent embodiments modified or changed according to the idea of the present invention should fall within the protection scope of the present invention without departing from the spirit of the present invention covered by the description and the drawings.
Claims (6)
1. An integrated SCR assembly is characterized by comprising a box body (1), a DOC (2), a DPF (3), an SCR (4) and a silencer (5), wherein the DOC (2) is connected with the DPF (3) to form a first connecting body (6), the SCR (4) is connected with the silencer (5) to form a second connecting body (7), and the first connecting body (6) and the second connecting body (7) are both connected with the box body (1);
the front exhaust pipe (8) is connected with the first connecting body (6) through a first communicating cavity (10), the front exhaust pipe (8) is connected with the second connecting body (7) through a branch pipe (11), and the second connecting body (7) is connected with the rear exhaust pipe (9) through a second communicating cavity (12);
the air-conditioning cabinet is characterized by further comprising an air inlet (13) and an air outlet (14), wherein one end of the air inlet (13) is connected with the first connecting body (6), the other end of the air inlet extends out of the cabinet body (1), one end of the air outlet (14) is connected with the rear exhaust pipe (9), and the other end of the air outlet extends out of the cabinet body (1);
the box body (1) is of a cuboid cavity structure, a first through hole (15), a second through hole (16) and a third through hole (17) which are parallel to each other are formed in the box body (1), and the first connecting body (6), the second connecting body (7) and the rear exhaust pipe (9) are respectively and correspondingly connected with the box body (1) through the first through hole (15), the second through hole (16) and the third through hole (17);
The air inlet (13) and the air outlet (14) are arranged on the same side of the box body (1), and the first communicating cavity (10) and the second communicating cavity (12) are arranged on the other side of the box body (1).
2. The integrated SCR assembly according to claim 1, further comprising a urea nozzle device comprising a urea nozzle mount (18) and a urea nozzle fitting (19) connected, the urea nozzle mount (18) being provided on the tank (1).
3. Integrated SCR assembly according to claim 1, wherein a front NOx sensor (20) is provided on the air inlet (13), the front NOx sensor (20) being connected to the air inlet (13) by a mounting base (21).
4. Integrated SCR assembly according to claim 1, wherein the first connection body (6) is provided with a front row temperature sensor (22), a rear row temperature sensor (23) and a front differential pressure sensor (24).
5. Integrated SCR assembly according to claim 1, wherein a post-nitrogen-oxygen sensor (25) and a particulate matter sensor (26) are provided on the gas outlet (14).
6. Integrated SCR assembly according to any of the claims 1 to 5, wherein the tank (1) comprises an upper outer plate, a lower outer plate, a front outer plate and a rear outer plate, which enclose the tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810524829.XA CN108868983B (en) | 2018-05-28 | 2018-05-28 | Integrated SCR assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810524829.XA CN108868983B (en) | 2018-05-28 | 2018-05-28 | Integrated SCR assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108868983A CN108868983A (en) | 2018-11-23 |
| CN108868983B true CN108868983B (en) | 2019-12-17 |
Family
ID=64335692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810524829.XA Active CN108868983B (en) | 2018-05-28 | 2018-05-28 | Integrated SCR assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108868983B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009167806A (en) * | 2008-01-10 | 2009-07-30 | Tokyo Roki Co Ltd | Exhaust emission control device for internal combustion engine |
| CN103046987A (en) * | 2012-12-25 | 2013-04-17 | 中国第一汽车股份有限公司 | Box-type postprocessor assembly |
| CN203347898U (en) * | 2013-07-08 | 2013-12-18 | 潍柴动力股份有限公司 | Integrated selective catalytic reduction (SCR) catalytic silencer |
| CN203570399U (en) * | 2013-11-11 | 2014-04-30 | 潍柴动力股份有限公司 | SCR catalytic sound elimination system and SCR catalytic sound eliminator thereof |
| KR20140087867A (en) * | 2012-12-31 | 2014-07-09 | 현대자동차주식회사 | Exhaust gas after-treatment device for vehicle |
| CN205297700U (en) * | 2015-12-18 | 2016-06-08 | 潍柴动力股份有限公司 | Integrated form SCR catalysis silencer |
| CN107780998A (en) * | 2017-10-18 | 2018-03-09 | 潍柴动力股份有限公司 | A kind of generalization integrated form DOC DPF SCR after-treatment devices |
-
2018
- 2018-05-28 CN CN201810524829.XA patent/CN108868983B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009167806A (en) * | 2008-01-10 | 2009-07-30 | Tokyo Roki Co Ltd | Exhaust emission control device for internal combustion engine |
| CN103046987A (en) * | 2012-12-25 | 2013-04-17 | 中国第一汽车股份有限公司 | Box-type postprocessor assembly |
| KR20140087867A (en) * | 2012-12-31 | 2014-07-09 | 현대자동차주식회사 | Exhaust gas after-treatment device for vehicle |
| CN203347898U (en) * | 2013-07-08 | 2013-12-18 | 潍柴动力股份有限公司 | Integrated selective catalytic reduction (SCR) catalytic silencer |
| CN203570399U (en) * | 2013-11-11 | 2014-04-30 | 潍柴动力股份有限公司 | SCR catalytic sound elimination system and SCR catalytic sound eliminator thereof |
| CN205297700U (en) * | 2015-12-18 | 2016-06-08 | 潍柴动力股份有限公司 | Integrated form SCR catalysis silencer |
| CN107780998A (en) * | 2017-10-18 | 2018-03-09 | 潍柴动力股份有限公司 | A kind of generalization integrated form DOC DPF SCR after-treatment devices |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108868983A (en) | 2018-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5681999B2 (en) | Exhaust system | |
| JP5630024B2 (en) | Diesel engine exhaust purification device and exhaust purification method | |
| US9061245B2 (en) | Method for reducing nitrogen oxides in diesel-engine exhaust gases and exhaust gas aftertreatment system for carrying out the method | |
| JP5630025B2 (en) | Diesel engine exhaust purification device and exhaust purification method | |
| CN105402007A (en) | Box type post processing assembly for diesel vehicle | |
| CN204457948U (en) | Exhaust aftertreatment assembly device | |
| KR20140062899A (en) | Exhaust gas purification system of vehicle | |
| JP5664259B2 (en) | Exhaust purification device | |
| JP5166848B2 (en) | Exhaust purification device | |
| CN101180455A (en) | Method for regeneration of an exhaust aftertreatment system | |
| JP2009091983A (en) | Exhaust emission control device | |
| CN209990526U (en) | Compact U-shaped cylinder type post-processing platform | |
| CN108868983B (en) | Integrated SCR assembly | |
| CN217029070U (en) | Tightly-coupled diesel engine exhaust aftertreatment system | |
| CN110966066A (en) | Pick-up truck coupling type catalytic converter | |
| CN111156068B (en) | Engine aftertreatment system and vehicle | |
| CN208918632U (en) | A kind of rear-mounted exhaust gas aftertreatment system and cropper | |
| CN211692608U (en) | Engine aftertreatment system and vehicle | |
| CN220487700U (en) | Aftertreatment device, engine exhaust system, and working machine | |
| CN216518228U (en) | Novel diesel vehicle aftertreatment system | |
| US9140172B2 (en) | Gas flow distributing flexible coupling | |
| CN219622763U (en) | Novel diesel vehicle SCR purifier | |
| CN217176734U (en) | Diesel engine close coupling exhaust aftertreatment and urea double-spraying device thereof | |
| CN217926042U (en) | Engine exhaust system and vehicle | |
| CN218235224U (en) | Aftertreatment system, engine and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 230601 No. 99 Ziyun Road, Hefei Economic and Technological Development Zone, Anhui Province Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 No. 669 Shixin Road, Taohua Industrial Park, Hefei City, Anhui Province Applicant before: Anhui Jianghuai Automobile Group Limited by Share Ltd |
|
| CB02 | Change of applicant information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |