CN204827615U - Double -deck hybrid tube and exhaust back processing apparatus thereof - Google Patents
Double -deck hybrid tube and exhaust back processing apparatus thereof Download PDFInfo
- Publication number
- CN204827615U CN204827615U CN201520549165.4U CN201520549165U CN204827615U CN 204827615 U CN204827615 U CN 204827615U CN 201520549165 U CN201520549165 U CN 201520549165U CN 204827615 U CN204827615 U CN 204827615U
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- China
- Prior art keywords
- pipe
- layer hybrid
- outer tube
- exhaust gas
- treatment device
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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
- 239000007921 spray Substances 0.000 claims abstract description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 230000003197 catalytic effect Effects 0.000 claims description 4
- 239000003638 chemical reducing agent Substances 0.000 claims description 4
- 238000002425 crystallisation Methods 0.000 abstract 1
- 230000008025 crystallization Effects 0.000 abstract 1
- 239000013078 crystal Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model provides a double -deck hybrid tube and exhaust back processing apparatus thereof, double -deck hybrid tube includes the inner tube and cup joints inner tube outlying outer tube, the inner tube is equipped with first periphery and runs through a plurality of first trompil of first periphery, the outer tube is equipped with the second periphery and runs through a plurality of second trompils of second periphery, the inner tube the position department of being close to first end be equipped with outside convex fin and with corresponding the windowing in position of fin. The utility model discloses a set up double -deck hybrid tube, increased exhaust and ureal mixed distance, improved the homogeneity of mixing. Additionally, window can direct the exhaust blow to lie in spray angle's region on the inner tube to the risk of this region urea crystallization has been reduced.
Description
Technical field
The utility model relates to a kind of two-layer hybrid pipe and exhaust gas post-treatment device thereof, belongs to engine tail gas purification technical field.
Background technique
In order to the emission request of satisfy regulatory, how to improve the mixing uniformity of exhaust and urea and effectively prevent urea crystals from being all the achievement technical issues that need to address.Research shows, the tube wall being positioned at jeting area, because easily directly contacting with sprayed urea, easily produces urea crystals.
Model utility content
The purpose of this utility model is to provide a kind of and mixes and effectively can reduce two-layer hybrid pipe and the exhaust gas post-treatment device thereof of urea crystals risk.
For achieving the above object, the utility model adopts following technological scheme: a kind of two-layer hybrid pipe, can be applied in exhaust gas post-treatment device, described two-layer hybrid pipe comprises interior pipe and is socketed in the outer tube of described interior pipe periphery, the second end that described interior pipe is provided with first end and is oppositely arranged with described first end, the 4th end that described outer tube is provided with the 3rd end and is oppositely arranged with described 3rd end, described first end and described 3rd end are positioned at the same side of described two-layer hybrid pipe, described second end and described 4th end are positioned at the same side of described two-layer hybrid pipe, described interior pipe is provided with the first circumferential surface and runs through some first perforates of described first circumferential surface, described outer tube is provided with the second circumferential surface and runs through some second perforates of described second circumferential surface, described interior pipe is provided with outwardly fin and window corresponding with the position of described fin in the position near described first end.
As the technological scheme that the utility model improves further, described fin is outwards stamped to form from described interior pipe, the extension part that described fin comprises rake and extends to described second end from described rake.
As the technological scheme that the utility model improves further, described extension part is horizontal-extending.
As the technological scheme that the utility model improves further, described outer tube is provided with outer tube part and fixes with described outer tube part and in bowl-shape end cap portions, wherein said second perforate is arranged in described outer tube part, and the second end of described interior pipe extends beyond described outer tube part and enters in described end cap portions.
As the technological scheme that the utility model improves further, described two-layer hybrid pipe also comprises the Taper Pipe be connected between described interior pipe and described outer tube, described Taper Pipe is provided with the larger one end of bore and the less the other end of bore, the 3rd end of described outer tube is fixed in one end that wherein said bore is larger, and the other end that described bore is less is fixed on the first end of described interior pipe.
As the technological scheme that the utility model improves further, the outer wall of described Taper Pipe does not arrange any perforate.
The utility model also relates to a kind of exhaust gas post-treatment device, comprise housing, be positioned at the first end cap of described shell one end, be positioned at the second end cap of the described housing the other end and be positioned at the dividing plate of described enclosure interior, described housing is divided into the first inner chamber and the second inner chamber by described dividing plate, and described exhaust gas post-treatment device also comprises the above-mentioned two-layer hybrid pipe be erected on described first end cap and described dividing plate.
As the technological scheme that the utility model improves further, described two-layer hybrid pipe extends through described dividing plate and extends in described second inner chamber.
As the technological scheme that the utility model improves further, described exhaust gas post-treatment device also comprises the selective catalytic reducing agent being arranged in described second inner chamber.
As the technological scheme that the utility model improves further, described exhaust gas post-treatment device also comprises the urea nozzle being arranged on described two-layer hybrid pipe upstream, described interior pipe is provided with the region of the spray angle being positioned at described urea nozzle, described in window the upstream that is positioned at described region and blow to described region in order to guide exhaust
Compared to prior art, the utility model by arranging two-layer hybrid pipe, add exhaust with urea mix distance, improve the uniformity of mixing.In addition, by arranging outwardly fin and window corresponding with the position of described fin on inner pipe, described in window and can guide exhaust and blow to the region described interior pipe being positioned at spray angle, thus reduce the risk of this region urea crystals.
Accompanying drawing explanation
Fig. 1 is the stereogram of the utility model exhaust gas post-treatment device.
Fig. 2 is the stereogram of another angle of Fig. 1.
Fig. 3 is the three-dimensional exploded view of Fig. 1.
Fig. 4 is the three-dimensional exploded view of Fig. 2.
Fig. 5 is the generalized section of the utility model exhaust gas post-treatment device.
Fig. 6 is the generalized section of the utility model exhaust gas post-treatment device and has marked spray angle.
Embodiment
Shown in please refer to the drawing 1 to Fig. 6, the utility model discloses a kind of exhaust gas post-treatment device 100, comprises housing 1, suction tude 2, steam outlet pipe 3 and is positioned at the selective catalytic reducing agent (SCR) 4 of described housing 1.
Described housing 1 comprise be positioned at one end the first end cap 11, be positioned at the second end cap 12 of the other end and be positioned at the dividing plate 13 of described enclosure interior.Described housing 1 is divided into the first inner chamber 14 and the second inner chamber 15 by described dividing plate 13.Described selective catalytic reducing agent 4 is positioned at described second inner chamber 15.
Described suction tude 2 comprises the inlet duct 21 being exposed to described first end cap 11 outside and the two-layer hybrid pipe 5 be connected with described inlet duct 21.Shown in please refer to the drawing 6, described inlet duct 21 is provided with mounting bracket 211 and is arranged on the urea nozzle 212 on described mounting bracket 211.Described urea nozzle 212 is provided with spray angle A, to be sprayed in exhaust by the urea liquid of atomization.
The outer tube 52 that described two-layer hybrid pipe 5 comprises interior pipe 51, be socketed in described interior pipe 51 periphery and the Taper Pipe 53 be connected between described interior pipe 51 and described outer tube 52.The second end 512, first circumferential surface 513 that described interior pipe 51 is provided with first end 511, be oppositely arranged with described first end 511 and some first perforates 514 running through described first circumferential surface 513.In addition, described interior pipe 51 is being provided with outwardly fin 515 and corresponding with the position of described fin 515 is windowing 516 near the position of described first end 511.Shown in please refer to the drawing 5, described fin 515 is outwards stamped to form from described interior pipe 51, is convenient to manufacture.The extension part 518 that described fin 515 comprises rake 517 and extends to described second end 512 from described rake 517.In the illustrated mode of execution of the utility model, described extension part 518 is horizontal-extendings.
The 4th end 522 that described outer tube 52 is provided with the 3rd end 521 and is oppositely arranged with described 3rd end 521.Described first end 511 and described 3rd end 521 are positioned at the same side (such as left side) of described two-layer hybrid pipe 5, and described second end 512 and described 4th end 522 are positioned at the same side (such as right side) of described two-layer hybrid pipe 5.Described outer tube 52 is provided with outer tube part 523 and fixes with described outer tube part 523 and in bowl-shape end cap portions 524, wherein said outer tube part 523 is provided with the second circumferential surface 525 and runs through some second perforates 526 of described second circumferential surface 525.Second end 512 of described interior pipe 51 extends beyond described outer tube part 523 and enters in described end cap portions 524.
Described Taper Pipe 53 is provided with larger one end of bore 531 and the less the other end 532 of bore, the 3rd end 521 of described outer tube 52 is fixed in one end 531 that wherein said bore is larger, and the other end 532 that described bore is less is fixed on the first end 511 of described interior pipe 51.In the illustrated mode of execution of the utility model, the outer wall of described Taper Pipe 53 does not arrange any perforate, thus reduce the manufacture difficulty of perforate on the outer wall of Taper Pipe 53.
Shown in please refer to the drawing 5, described two-layer hybrid pipe 5 is erected on described first end cap 11 and described dividing plate 13.Described two-layer hybrid pipe 5 extends through described dividing plate 13 and extends in described second inner chamber 15.
Compared to prior art, the utility model by arranging two-layer hybrid pipe 5, add exhaust with urea mix distance, improve the uniformity of mixing.In addition, by arranging outwardly fin 515 and corresponding with the position of described fin 515 window 516 on interior pipe 51.Described interior pipe 51 is provided with the region B of the spray angle A being positioned at described urea nozzle 212, described in window and 516 be positioned at the upstream of described region B and blow to described region B in order to guide exhaust, thus reduce the risk of urea crystals herein.
In addition, the technological scheme of above embodiment only for illustration of the utility model and described by unrestricted the utility model, understanding of this description should based on person of ordinary skill in the field, although this specification 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 to the utility model or equivalent replacement, and all do not depart from technological scheme and the improvement thereof of spirit and scope of the present utility model, all should be encompassed in right of the present utility model.
Claims (10)
1. a two-layer hybrid pipe, can be applied in exhaust gas post-treatment device, described two-layer hybrid pipe comprises interior pipe and is socketed in the outer tube of described interior pipe periphery, the second end that described interior pipe is provided with first end and is oppositely arranged with described first end, the 4th end that described outer tube is provided with the 3rd end and is oppositely arranged with described 3rd end, described first end and described 3rd end are positioned at the same side of described two-layer hybrid pipe, described second end and described 4th end are positioned at the same side of described two-layer hybrid pipe, described interior pipe is provided with the first circumferential surface and runs through some first perforates of described first circumferential surface, described outer tube is provided with the second circumferential surface and runs through some second perforates of described second circumferential surface, it is characterized in that: described interior pipe is provided with outwardly fin and window corresponding with the position of described fin in the position near described first end.
2. two-layer hybrid pipe as claimed in claim 1, is characterized in that: described fin is outwards stamped to form from described interior pipe, the extension part that described fin comprises rake and extends to described second end from described rake.
3. two-layer hybrid pipe as claimed in claim 2, is characterized in that: described extension part is horizontal-extending.
4. two-layer hybrid pipe as claimed in claim 1, it is characterized in that: described outer tube is provided with outer tube part and fixes with described outer tube part and in bowl-shape end cap portions, wherein said second perforate is arranged in described outer tube part, and the second end of described interior pipe extends beyond described outer tube part and enters in described end cap portions.
5. two-layer hybrid pipe as claimed in claim 1, it is characterized in that: described two-layer hybrid pipe also comprises the Taper Pipe be connected between described interior pipe and described outer tube, described Taper Pipe is provided with the larger one end of bore and the less the other end of bore, the 3rd end of described outer tube is fixed in one end that wherein said bore is larger, and the other end that described bore is less is fixed on the first end of described interior pipe.
6. two-layer hybrid pipe as claimed in claim 5, is characterized in that: the outer wall of described Taper Pipe does not arrange any perforate.
7. an exhaust gas post-treatment device, comprise housing, be positioned at the first end cap of described shell one end, be positioned at the second end cap of the described housing the other end and be positioned at the dividing plate of described enclosure interior, described housing is divided into the first inner chamber and the second inner chamber by described dividing plate, it is characterized in that: described exhaust gas post-treatment device also comprises the two-layer hybrid pipe be erected on described first end cap and described dividing plate, described two-layer hybrid pipe is the two-layer hybrid pipe described in any one in claim 1 to 6.
8. exhaust gas post-treatment device as claimed in claim 7, is characterized in that: described two-layer hybrid pipe extends through described dividing plate and extends in described second inner chamber.
9. exhaust gas post-treatment device as claimed in claim 8, is characterized in that: described exhaust gas post-treatment device also comprises the selective catalytic reducing agent being arranged in described second inner chamber.
10. exhaust gas post-treatment device as claimed in claim 7, it is characterized in that: described exhaust gas post-treatment device also comprises the urea nozzle being arranged on described two-layer hybrid pipe upstream, described interior pipe is provided with the region of the spray angle being positioned at described urea nozzle, described in window the upstream that is positioned at described region and blow to described region in order to guide exhaust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520549165.4U CN204827615U (en) | 2015-07-27 | 2015-07-27 | Double -deck hybrid tube and exhaust back processing apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520549165.4U CN204827615U (en) | 2015-07-27 | 2015-07-27 | Double -deck hybrid tube and exhaust back processing apparatus thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204827615U true CN204827615U (en) | 2015-12-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520549165.4U Active CN204827615U (en) | 2015-07-27 | 2015-07-27 | Double -deck hybrid tube and exhaust back processing apparatus thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569787A (en) * | 2015-12-17 | 2016-05-11 | 无锡威孚力达催化净化器有限责任公司 | Urea nozzle integrated SCR (Selective Catalytic Reduction) catalytic converter |
| CN106437966A (en) * | 2016-10-24 | 2017-02-22 | 无锡威孚力达催化净化器有限责任公司 | Axial feeding integrated type SCR aftertreatment mixing cavity |
| CN106437968A (en) * | 2016-10-24 | 2017-02-22 | 无锡威孚力达催化净化器有限责任公司 | Integrated wavy type rotational flow urea mixing device |
| CN106437967A (en) * | 2016-10-24 | 2017-02-22 | 无锡威孚力达催化净化器有限责任公司 | Honeycomb type rotational flow urea mixing device |
| CN106523092A (en) * | 2016-10-24 | 2017-03-22 | 无锡威孚力达催化净化器有限责任公司 | Two-blade conical surface type cyclone urea mixing device |
| WO2017101628A1 (en) * | 2015-12-18 | 2017-06-22 | 天纳克（苏州）排放系统有限公司 | Engine exhaust after-treatment device |
| CN106894870A (en) * | 2015-12-18 | 2017-06-27 | 天纳克（苏州）排放系统有限公司 | Exhaust post-treatment apparatus of engine |
| CN107489502A (en) * | 2016-06-13 | 2017-12-19 | 天纳克（苏州）排放系统有限公司 | Exhaust aftertreatment mixing arrangement |
| CN108131182A (en) * | 2017-12-23 | 2018-06-08 | 无锡威孚力达催化净化器有限责任公司 | For the mixer of SCR post processings |
| WO2018149053A1 (en) * | 2017-02-20 | 2018-08-23 | 天纳克（苏州）排放系统有限公司 | Exhaust gas post-treatment apparatus |
| CN109404103A (en) * | 2016-06-03 | 2019-03-01 | 天纳克（苏州）排放系统有限公司 | Mixing arrangement |
| CN109653849A (en) * | 2019-01-28 | 2019-04-19 | 凯龙高科技股份有限公司 | A kind of urea injection bimetallic tube mixer for diesel engine vent gas post-processing |
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2015
- 2015-07-27 CN CN201520549165.4U patent/CN204827615U/en active Active
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569787A (en) * | 2015-12-17 | 2016-05-11 | 无锡威孚力达催化净化器有限责任公司 | Urea nozzle integrated SCR (Selective Catalytic Reduction) catalytic converter |
| CN106894870A (en) * | 2015-12-18 | 2017-06-27 | 天纳克（苏州）排放系统有限公司 | Exhaust post-treatment apparatus of engine |
| CN108952905A (en) * | 2015-12-18 | 2018-12-07 | 天纳克（苏州）排放系统有限公司 | Mixing arrangement |
| WO2017101628A1 (en) * | 2015-12-18 | 2017-06-22 | 天纳克（苏州）排放系统有限公司 | Engine exhaust after-treatment device |
| CN109404103A (en) * | 2016-06-03 | 2019-03-01 | 天纳克（苏州）排放系统有限公司 | Mixing arrangement |
| CN109404103B (en) * | 2016-06-03 | 2021-02-19 | 天纳克（苏州）排放系统有限公司 | Mixing device |
| WO2017215460A1 (en) * | 2016-06-13 | 2017-12-21 | 天纳克（苏州）排放系统有限公司 | Mixing apparatus for exhaust gas postprocessing |
| CN107489502A (en) * | 2016-06-13 | 2017-12-19 | 天纳克（苏州）排放系统有限公司 | Exhaust aftertreatment mixing arrangement |
| CN108915830A (en) * | 2016-06-13 | 2018-11-30 | 天纳克（苏州）排放系统有限公司 | Exhaust aftertreatment mixing arrangement |
| CN108915830B (en) * | 2016-06-13 | 2019-11-08 | 天纳克（苏州）排放系统有限公司 | Exhaust aftertreatment mixing arrangement |
| CN106437968B (en) * | 2016-10-24 | 2019-06-28 | 无锡威孚力达催化净化器有限责任公司 | Integrated wave eddy flow urea mixing device |
| CN106523092A (en) * | 2016-10-24 | 2017-03-22 | 无锡威孚力达催化净化器有限责任公司 | Two-blade conical surface type cyclone urea mixing device |
| CN106437967A (en) * | 2016-10-24 | 2017-02-22 | 无锡威孚力达催化净化器有限责任公司 | Honeycomb type rotational flow urea mixing device |
| CN106437968A (en) * | 2016-10-24 | 2017-02-22 | 无锡威孚力达催化净化器有限责任公司 | Integrated wavy type rotational flow urea mixing device |
| CN106437966A (en) * | 2016-10-24 | 2017-02-22 | 无锡威孚力达催化净化器有限责任公司 | Axial feeding integrated type SCR aftertreatment mixing cavity |
| CN106437967B (en) * | 2016-10-24 | 2019-03-19 | 无锡威孚力达催化净化器有限责任公司 | Honeycomb type eddy flow urea mixing device |
| CN106523092B (en) * | 2016-10-24 | 2019-04-23 | 无锡威孚力达催化净化器有限责任公司 | The conical surface type eddy flow urea mixing devices of page two |
| WO2018149053A1 (en) * | 2017-02-20 | 2018-08-23 | 天纳克（苏州）排放系统有限公司 | Exhaust gas post-treatment apparatus |
| US10612443B2 (en) | 2017-02-20 | 2020-04-07 | Tenneco (Suzhou) Emission System Co., Ltd. | Exhaust gas post-treatment apparatus |
| CN108131182A (en) * | 2017-12-23 | 2018-06-08 | 无锡威孚力达催化净化器有限责任公司 | For the mixer of SCR post processings |
| CN109653849A (en) * | 2019-01-28 | 2019-04-19 | 凯龙高科技股份有限公司 | A kind of urea injection bimetallic tube mixer for diesel engine vent gas post-processing |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |