CN208122932U - Box-type exhaust post-treatment apparatus of engine - Google Patents
Box-type exhaust post-treatment apparatus of engine Download PDFInfo
- Publication number
- CN208122932U CN208122932U CN201820096900.4U CN201820096900U CN208122932U CN 208122932 U CN208122932 U CN 208122932U CN 201820096900 U CN201820096900 U CN 201820096900U CN 208122932 U CN208122932 U CN 208122932U
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- China
- Prior art keywords
- baffle
- engine
- box
- post
- treatment apparatus
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000004202 carbamide Substances 0.000 claims abstract description 18
- 230000000712 assembly Effects 0.000 claims abstract description 9
- 238000000429 assembly Methods 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims abstract description 7
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- 238000012805 post-processing Methods 0.000 claims description 7
- 239000003054 catalyst Substances 0.000 claims description 6
- 230000003197 catalytic effect Effects 0.000 claims description 6
- 239000003638 chemical reducing agent Substances 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 239000013078 crystal Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
A kind of box-type exhaust post-treatment apparatus of engine comprising shell, several aftertreatment assemblies and cavity components.The shell includes first end cover, first baffle, second baffle, second end cover and shell.The first space is formed between the first end cover and the first baffle, the shell includes the exhaust inlet pipe entered in first space across the first end cover.The exhaust inlet pipe is equipped with several gas vents being connected to first space on the peripheral wall.The cavity components include mixing tube, and the mixing tube includes inner chamber body, the peripheral and circumferentially distributed several fins for being centered around the inner chamber body, corresponding to several fins and several flutings being connected to the inner chamber body and the antipriming pipe in the mixing tube.Compared to the prior art, the utility model enhances the broken and heat transfer effect between wall surface of urea, to reduce the risk of urea crystals by setting antipriming pipe.
Description
Technical field
The utility model relates to a kind of box-type exhaust post-treatment apparatus of engine.
Background technique
Box-type exhaust post-treatment apparatus of engine (such as diesel engine exhausting after-treatment device) be primarily used to processing or
Toxic and harmful substance device in evolution exhaust.Harmful toxic matter in exhaust mainly includes hydrocarbon, carbon monoxide, nitrogen
Oxide and particulate matter etc..
Have in the prior art using diesel oxidation catalyst (DOC), diesel particulate trap (DPF) and selectivity
The scheme that catalytic reducer (SCR) is combined improves the efficiency of vent gas treatment.In a kind of scheme, the oxidized form catalysis turns
Parallel operation and grain catcher are arranged in series in first shell, and the first cavity being connected to the first shell is in addition arranged；
The selective catalytic reducing agent is arranged in second shell, and the second cavity being connected to the second shell is in addition arranged；
Then first, second cavity is together in series by connecting pipe.Exhaust and urea droplets are mixed in connecting pipe,
Mixture subsequently enters the second cavity, then by selective catalytic reducing agent, to reduce harmful substance.However, exhaust and urea
The mixture of drop is unevenly distributed, and then cannot make mixture uniformly by the selectivity after entering the second cavity
Catalytic reducer, it reduce treatment effeciencies.
Utility model content
The purpose of this utility model is to provide one kind, and exhaust can be made to realize more uniform mixed cabinet with urea liquid
Formula exhaust post-treatment apparatus of engine.
To achieve the above object, the utility model adopts the following technical solution：A kind of box-type engine exhaust post-processing
Device comprising shell, positioned at the intracorporal several aftertreatment assemblies of the shell and by the aftertreatment assembly connection get up
Cavity components, the shell include first end cover, first baffle, second baffle, second end cover and are wrapped in described first,
The shell they two baffles periphery and be fixed together with first, second end cap；The first end cover and the first baffle it
Between be formed with the first space, the shell includes the exhaust entrance entered in first space across the first end cover
Pipe；Several aftertreatment assemblies include the first aftertreatment assembly being at least partially disposed between first, second baffle, with
First aftertreatment assembly alignment and the second interconnected aftertreatment assembly and with first, second aftertreatment assembly
Two third aftertreatment assemblies being arranged side by side；The exhaust inlet pipe is equipped with several and first space on the peripheral wall and connects
Logical gas vent；The first baffle is equipped with first that first aftertreatment assembly is connected with first space and opens
Hole；It is formed with second space between the second end cover and the second baffle, the second baffle is equipped with will be after described second
The second aperture and the third being connected with corresponding third aftertreatment assembly that processing component and the second space are connected
Aperture；The cavity components include first cavity components of the clasp in second aperture, with the first cavity components phase
The mixer tube assembly of connection and the second cavity the mixer tube assembly to be connected with the third aftertreatment assembly
Component；The mixer tube assembly includes mixing tube, and the mixing tube includes inner chamber body, the periphery for being centered around the inner chamber body and edge
Circumferentially distributed several fins corresponding to several fins and several flutings being connected to the inner chamber body and are located at described
Antipriming pipe in mixing tube.
As the further improved technical solution of the utility model, the exhaust inlet pipe against and be fixed on described first
On baffle.
As the further improved technical solution of the utility model, the shell further includes being connected with the second space
Exhaust exit pipe.
As the further improved technical solution of the utility model, the second baffle is equipped with perforative through-hole, described mixed
It closes pipe and vacantly passes through the through-hole, the fin at least partly extends beyond the second baffle.
As the further improved technical solution of the utility model, the mixer tube assembly includes being located at the second baffle
And corresponding to the sleeve part of the through-hole, the sleeve part is equipped with the extended cavity, and the fin is at least partially disposed at the expansion
It opens up in chamber.
As the further improved technical solution of the utility model, first aftertreatment assembly includes diesel oil oxidation catalysis
Agent and the first perforated distributor positioned at the upstream of the diesel oxidation catalyst.
As the further improved technical solution of the utility model, second aftertreatment assembly includes diesel particulate trapping
Device.
As the further improved technical solution of the utility model, the third aftertreatment assembly include selective catalysis also
Former agent.
As the further improved technical solution of the utility model, the box-type exhaust post-treatment apparatus of engine includes
It is fixed on the second end cover and the mounting portion to install urea nozzle, the urea nozzle is into the antipriming pipe
Spray urea droplets.
As the further improved technical solution of the utility model, second cavity components include connecting with the mixing tube
Logical interstitial hole and two connecting holes positioned at the interstitial hole two sides, the connecting hole and corresponding third aftertreatment assembly
It is connected.
Compared to the prior art, the utility model enhances the broken of urea and between wall surface by setting antipriming pipe
Heat transfer effect, to reduce the risk of urea crystals.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of the utility model box-type exhaust post-treatment apparatus of engine.
Fig. 2 is the stereoscopic schematic diagram of another angle of Fig. 1.
Fig. 3 is the stereogram exploded view of Fig. 1.
Fig. 4 is the stereogram exploded view of another angle of Fig. 3.
Fig. 5 is the stereoscopic schematic diagram removed in Fig. 2 after the first, second end cap.
Fig. 6 is the stereoscopic schematic diagram of another angle of Fig. 5.
Fig. 7 is the main view of Fig. 1.
Fig. 8 is the top view of Fig. 1.
Fig. 9 is the bottom view of Fig. 1.
Figure 10 is the left view of Fig. 1.
Figure 11 is the right view of Fig. 1.
Figure 12 is the stereoscopic schematic diagram removed in Fig. 6 after first end cover.
Figure 13 is the stereoscopic schematic diagram removed in Figure 12 after first baffle.
Figure 14 is the stereoscopic schematic diagram removed in Figure 13 after shell.
Figure 15 is the main view of Fig. 2.
Figure 16 is the diagrammatic cross-section of the line A-A along Figure 15.
Figure 17 is the diagrammatic cross-section of the line B-B along Figure 15.
Specific embodiment
It please join shown in Fig. 1 to Figure 17, the utility model discloses a kind of box-type exhaust post-treatment apparatus of engine 100,
It includes shell 1, several aftertreatment assemblies in the shell 1 and the cavity that aftertreatment assembly connection is got up
Component.
In the utility model embodiment illustrated, the shell 1 includes first end cover 10, first baffle 11, second
Baffle 12, second end cover 13 and be wrapped in first, second baffle, 11,12 periphery and with first, second end cap 10,
13 shells 14 being fixed together.
It please join shown in Figure 16 and Figure 17, be formed with the first space between the first end cover 10 and the first baffle 11
15, second space 16 is formed between the second end cover 13 and the second baffle 12.The shell 1 includes across described
The exhaust inlet pipe 17 and the exhaust being connected with the second space 16 that one end cap 10 enters in first space 15
Outlet 18.The exhaust inlet pipe 17 is equipped with several gas vents 171 being connected to first space 15 on the peripheral wall, with
Conducive to the distribution of air-flow.In the utility model embodiment illustrated, the exhaust inlet pipe 17 against and be fixed on described
On first baffle 11, to play booster action.
Several aftertreatment assemblies include be at least partially disposed between first, second baffle 11,12 first after
Processing component 21, the second aftertreatment assembly 22 for being aligned and being interconnected with first aftertreatment assembly 21 and with described
One, two third aftertreatment assemblies 23 that the second aftertreatment assembly 21,22 is arranged side by side.In the embodiment party of the utility model diagram
In formula, first aftertreatment assembly 21 is including diesel oxidation catalyst 211 and positioned at the upper of the diesel oxidation catalyst
First perforated distributor 212 of trip.Second aftertreatment assembly 22 includes diesel particulate trap 221.Third post-processing group
Part 23 includes selective catalytic reducing agent 231.
The first baffle 11 is equipped with first that first aftertreatment assembly 21 is connected with first space 15
Aperture 111.The second baffle 12 is equipped with second that second aftertreatment assembly 22 is connected with the second space 16
Aperture 121 and the third aperture 122 being connected with corresponding third aftertreatment assembly 23.
It please join shown in Fig. 2 and Figure 16, the box-type exhaust post-treatment apparatus of engine 100 further includes being fixed on described
On two end caps 13 and the mounting portion 19 to install urea nozzle (not shown).
The cavity components include first cavity components 31 and first chamber of the clasp in second aperture 121
Mixer tube assembly 33 that body component 31 is connected and to by the mixer tube assembly 33 and the third aftertreatment assembly 23
The second cavity components 32 being connected.
The mixer tube assembly 33 includes mixing tube 38 and the sleeve part 39 matched with mixing tube 38.The mixing tube
38 include inner chamber body 381, peripheral and circumferentially distributed several fins 382 for being centered around the inner chamber body 381, correspond to it is described
Several fins 382 and several flutings 383 being connected to the inner chamber body 381 and the antipriming pipe in the mixing tube 38
384.The antipriming pipe 384 is axial at least partly Chong Die with the fin 382 along it.The urea nozzle is to described porous
Urea droplets are sprayed in pipe 384, the broken and heat transfer effect between the wall surface of mixing tube 38 of urea droplets are enhanced, to drop
The low risk of urea crystals.
It please join shown in Figure 16, the second baffle 12 is additionally provided with perforative through-hole 123, and the mixing tube 38 vacantly passes through
The through-hole 123, the fin 382 at least partly extend beyond the second baffle 12.The sleeve part 39 corresponds to described
Through-hole 123.The sleeve part 39 is equipped with the extended cavity 391, and the fin 382 is at least partially disposed in the extended cavity 391.
The utility model increases installation sky by setting sleeve part 39, in the inside of box-type exhaust post-treatment apparatus of engine 100
Between, the overall dimensions of box-type exhaust post-treatment apparatus of engine 100 are not limited to, and can be by adjusting extended cavity 391
The back pressure of system is adjusted flexibly in volume, realizes standardized designs.
Second cavity components 32 include the interstitial hole 321 being connected to the mixing tube 38 and be located at the interstitial hole
Two connecting holes 322 of 321 two sides, the connecting hole 322 are connected with corresponding third aftertreatment assembly 23.
In addition, above embodiments are merely to illustrate the utility model and not limit technical side described in the utility model
Case, understanding of this description should be based on persons of ordinary skill in the field, although this specification is referring to above-mentioned
Embodiment has been carried out detailed description to the utility model, still, those skilled in the art should understand that, affiliated skill
The technical staff in art field still can be modified or replaced equivalently the utility model, and all not depart from this practical new
The technical solution and its improvement of the spirit and scope of type, should all cover in the scope of the claims of the utility model.
Claims (10)
1. a kind of box-type exhaust post-treatment apparatus of engine comprising shell is located at the intracorporal several post-processing groups of the shell
Part and the cavity components that aftertreatment assembly connection is got up, the shell includes first end cover, first baffle, second gear
It plate, second end cover and is wrapped in first, second baffle periphery and is fixed together with first, second end cap outer
Shell；The first space is formed between the first end cover and the first baffle, the shell includes across the first end cover
Enter the exhaust inlet pipe in first space；Several aftertreatment assemblies include be at least partially disposed at described first,
The first aftertreatment assembly between second baffle, the second post-processing group for being aligned and being interconnected with first aftertreatment assembly
Part and two third aftertreatment assemblies being arranged side by side with first, second aftertreatment assembly；It is characterized in that：The row
Gas inlet tube is equipped with several gas vents being connected to first space on the peripheral wall；The first baffle is equipped with described the
The first aperture that one aftertreatment assembly is connected with first space；It is formed between the second end cover and the second baffle
There is second space, the second baffle is equipped with the second aperture that second aftertreatment assembly is connected with the second space
And the third aperture being connected with corresponding third aftertreatment assembly；The cavity components include clasp in second aperture
On the first cavity components, the mixer tube assembly that is connected with first cavity components and to by the mixing tube group
The second cavity components that part is connected with the third aftertreatment assembly；The mixer tube assembly includes mixing tube, the mixing
It manages including inner chamber body, the peripheral and circumferentially distributed several fins for being centered around the inner chamber body, correspond to several fins
And several flutings being connected to the inner chamber body and the antipriming pipe in the mixing tube.
2. box-type exhaust post-treatment apparatus of engine as described in claim 1, it is characterised in that：The exhaust inlet pipe supports
It leans on and is fixed on the first baffle.
3. box-type exhaust post-treatment apparatus of engine as described in claim 1, it is characterised in that：The shell further include with
The exhaust exit pipe that the second space is connected.
4. box-type exhaust post-treatment apparatus of engine as described in claim 1, it is characterised in that：The second baffle is equipped with
Perforative through-hole, the mixing tube vacantly pass through the through-hole, and the fin at least partly extends beyond the second baffle.
5. box-type exhaust post-treatment apparatus of engine as claimed in claim 4, it is characterised in that：The mixer tube assembly packet
The sleeve part of the through-hole is included positioned at the second baffle and corresponds to, the sleeve part is equipped with extended cavity, and the fin is at least
Part is located in the extended cavity.
6. box-type exhaust post-treatment apparatus of engine as described in claim 1, it is characterised in that：The first post-processing group
Part includes diesel oxidation catalyst and the first perforated distributor positioned at the upstream of the diesel oxidation catalyst.
7. box-type exhaust post-treatment apparatus of engine as claimed in claim 6, it is characterised in that：The second post-processing group
Part includes diesel particulate trap.
8. box-type exhaust post-treatment apparatus of engine as claimed in claim 7, it is characterised in that：The third post-processing group
Part includes selective catalytic reducing agent.
9. box-type exhaust post-treatment apparatus of engine as described in claim 1, it is characterised in that：The box-type engine
Exhaust gas post-treatment device include it is fixed on the second end cover and the mounting portion to install urea nozzle, the urea nozzle
To spray urea droplets into the antipriming pipe.
10. box-type exhaust post-treatment apparatus of engine as described in claim 1, it is characterised in that：The second cavity group
Part includes the interstitial hole being connected to the mixing tube and two connecting holes positioned at the interstitial hole two sides, the connecting hole with
Corresponding third aftertreatment assembly is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820096900.4U CN208122932U (en) | 2018-01-19 | 2018-01-19 | Box-type exhaust post-treatment apparatus of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820096900.4U CN208122932U (en) | 2018-01-19 | 2018-01-19 | Box-type exhaust post-treatment apparatus of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208122932U true CN208122932U (en) | 2018-11-20 |
Family
ID=64206094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820096900.4U Active CN208122932U (en) | 2018-01-19 | 2018-01-19 | Box-type exhaust post-treatment apparatus of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208122932U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838293A (en) * | 2019-03-29 | 2019-06-04 | 潍柴动力股份有限公司 | A kind of mixer |
| CN110056417A (en) * | 2018-01-19 | 2019-07-26 | 天纳克（苏州）排放系统有限公司 | Box-type exhaust post-treatment apparatus of engine |
-
2018
- 2018-01-19 CN CN201820096900.4U patent/CN208122932U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110056417A (en) * | 2018-01-19 | 2019-07-26 | 天纳克（苏州）排放系统有限公司 | Box-type exhaust post-treatment apparatus of engine |
| CN110056417B (en) * | 2018-01-19 | 2024-10-22 | 天纳克（苏州）排放系统有限公司 | Exhaust aftertreatment device for box-type engine |
| CN109838293A (en) * | 2019-03-29 | 2019-06-04 | 潍柴动力股份有限公司 | A kind of mixer |
| CN109838293B (en) * | 2019-03-29 | 2024-04-16 | 潍柴动力股份有限公司 | Mixer |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |