CN111271168A - Tail gas aftertreatment casing and tail gas aftertreatment encapsulation - Google Patents
Tail gas aftertreatment casing and tail gas aftertreatment encapsulation Download PDFInfo
- Publication number
- CN111271168A CN111271168A CN202010190686.0A CN202010190686A CN111271168A CN 111271168 A CN111271168 A CN 111271168A CN 202010190686 A CN202010190686 A CN 202010190686A CN 111271168 A CN111271168 A CN 111271168A
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- Prior art keywords
- shell
- notch
- cone
- cylinder
- housing
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- 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.)
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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
- 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
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1888—Construction facilitating manufacture, assembly, or disassembly the housing of the assembly consisting of two or more parts, e.g. two half-shells
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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
- 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
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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
- 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
- F01N13/14—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 thermal insulation
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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
- F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Analytical Chemistry (AREA)
- Exhaust Silencers (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
An exhaust aftertreatment shell comprises a cone and a heat preservation shell matched with the cone. The cone is provided with a first weld and a second weld. The heat preservation casing is equipped with first lateral margin and second lateral margin, wherein first lateral margin is equipped with first breach, second breach, third breach and the fourth breach that the interval set up. When the cone body is matched with the heat-insulating shell body at a first position, the first welding line corresponds to the first notch, and the second welding line corresponds to the third notch; when the cone body is matched with the heat preservation shell body at a second position, the first welding line corresponds to the second notch, and the second welding line corresponds to the fourth notch. According to the invention, the plurality of notches are arranged, and when the cone body is matched with the heat-insulating shell at the first position and the second position, different notches are respectively matched with the cone body, so that the feasibility of multi-angle matching is realized, and the mounting diversity is improved.
Description
Technical Field
The invention relates to a tail gas aftertreatment shell and a tail gas aftertreatment package, and belongs to the technical field of tail gas aftertreatment of diesel engines.
Background
Existing exhaust aftertreatment packages include an exhaust aftertreatment housing that includes a cone (e.g., an intake cone) and an insulating housing that mates with the cone, which typically overlies a catalyst carrier package housing. The thermal insulation housing is typically provided with a plurality of notches corresponding to the cone and a plurality of sensor avoidance slots cooperating with the sensor seats.
However, with the expansion of the application range, the installation angle of the cone is also changed, and the gaps and the sensor avoiding grooves, which are arranged on the original heat-insulating shell and correspond to the cone and the sensor seat one to one, cannot meet the diversified installation requirements. This results in different thermal insulation casings that need to be designed for different installation angles, and is not favorable to saving cost.
Disclosure of Invention
The invention aims to provide a tail gas aftertreatment shell and a tail gas aftertreatment package which can be matched in multiple angles.
In order to achieve the purpose, the invention adopts the following technical scheme: an exhaust aftertreatment shell comprises a cone and a heat preservation shell matched with the cone, wherein the cone is provided with a first welding line and a second welding line; the heat preservation casing be equipped with first side reason and with the relative second side reason that sets up of first side reason, first side reason is equipped with first breach, second breach, third breach and the fourth breach that the interval set up, the second side reason is equipped with and is used for dodging at least two of sensor seat and dodges the groove, wherein:
when the cone body is matched with the heat-insulating shell body at a first position, the first welding line corresponds to the first notch, and the second welding line corresponds to the third notch;
when the cone body is matched with the heat preservation shell body at a second position, the first welding line corresponds to the second notch, and the second welding line corresponds to the fourth notch.
As a further improved technical solution of the present invention, the first side edge is provided with a first circumference, wherein the first notch, the second notch, the third notch and the fourth notch are distributed at intervals along the first circumference.
As a further improved technical solution of the present invention, an arc length between the first notch and the third notch is equal to an arc length between the second notch and the fourth notch.
As a further improved technical solution of the present invention, the cone includes a first half shell and a second half shell, wherein the first half shell includes a first half inner shell and a first half outer shell, and the second half shell includes a second half inner shell and a second half outer shell; the first welding seam and the second welding seam are formed at the welding position of the first half inner shell and the second half inner shell.
As a further improved technical solution of the present invention, the first half inner case and the second half inner case are fixed to an inner side of a first side edge of the heat-insulating case, and the first half outer case and the second half outer case are fixed to an outer side of the first side edge of the heat-insulating case.
As a further improved technical scheme of the invention, the first half inner shell and the second half inner shell are provided with mutually matched flanges, and the first welding line and the second welding line are formed at the flanges.
As a further improved technical scheme of the invention, the cone is an air inlet cone, and the air inlet cone is provided with an air inlet.
As a further improved technical scheme of the present invention, the second side edge is provided with a second circumference, the number of the avoidance grooves is greater than or equal to four, and the avoidance grooves are distributed at intervals along the second circumference; the sensor seat comprises a first sensor seat for mounting a temperature sensor and a second sensor seat for mounting a pressure sensor, wherein the first sensor seat is arranged in one of the avoiding grooves, and the second sensor seat is arranged in the other avoiding groove.
The invention also relates to an exhaust gas post-treatment package, which comprises a first barrel, a first post-treatment unit packaged in the first barrel, a second barrel aligned with the first barrel, a second post-treatment unit packaged in the second barrel, a third barrel arranged side by side with the first barrel and the second barrel, a third post-treatment unit packaged in the third barrel, and a connecting shell for connecting the second barrel and the third barrel, and the exhaust gas post-treatment package also comprises the exhaust gas post-treatment shell, wherein the heat-insulating shell covers the first barrel.
As a further improved technical solution of the present invention, the exhaust aftertreatment package is substantially U-shaped, the first aftertreatment unit is a diesel catalytic oxidizer (DOC), the second aftertreatment unit is a diesel particulate trap (DPF), and the third aftertreatment unit is a Selective Catalytic Reducer (SCR).
Compared with the prior art, the heat-insulation shell is provided with the plurality of notches, and when the cone is matched with the heat-insulation shell at the first position and the second position, different notches are matched with the cone respectively, so that the feasibility of multi-angle matching is realized, and diversified installation requirements are met.
Drawings
FIG. 1 is a schematic perspective view of an exhaust aftertreatment package according to the invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is an exploded perspective view of fig. 1.
FIG. 4 is a schematic perspective view of an exhaust aftertreatment housing, a first cartridge, and a first aftertreatment unit of the invention.
Fig. 5 is an exploded perspective view of fig. 4.
Fig. 6 is a perspective view of the first half shell and the second half shell of fig. 4 removed.
Fig. 7 is an exploded perspective view from another angle of fig. 6.
Fig. 8 is a perspective view of the first inner half shell.
Fig. 9 is a perspective view of the second half inner housing.
Detailed Description
Referring to fig. 1 to 3, the present invention discloses an exhaust gas aftertreatment package 100, which includes a first cylinder 11, a first aftertreatment unit 12 packaged in the first cylinder 11, a second cylinder 21 aligned with the first cylinder 11, a second aftertreatment unit 22 packaged in the second cylinder 21, a third cylinder 31 arranged side by side with the first cylinder 11 and the second cylinder 21, a third aftertreatment unit 32 packaged in the third cylinder 31, a connection housing 4 connecting the second cylinder 21 and the third cylinder 31, and an exhaust gas aftertreatment housing 5. The connecting housing 4 is provided with a turning chamber 40 for directing the air flow exiting the second aftertreatment unit 22 towards the third aftertreatment unit 32.
In the illustrated embodiment of the invention, the exhaust aftertreatment package 100 is generally U-shaped. The first aftertreatment unit 12 is a diesel catalytic oxidizer (DOC), the second aftertreatment unit 22 is a diesel particulate trap (DPF), and the third aftertreatment unit 32 is a Selective Catalytic Reducer (SCR).
Referring to fig. 4 to 7, the exhaust gas aftertreatment housing 5 includes a cone 6 and a heat insulation housing 7 engaged with the cone 6. In the illustrated embodiment of the invention, the cone 6 is an inlet cone provided with an inlet opening 60. Referring to fig. 6, the cone 6 includes a first half shell 61 (e.g., a left half shell) and a second half shell 62 (e.g., a right half shell), wherein the first half shell 61 is two-layered and includes a first half inner shell 611 and a first half outer shell 612. The second half-shell 62 is two-layered and includes a second half inner shell 621 and a second half outer shell 622. Referring to fig. 5 and 7, a first welding seam 613 and a second welding seam 614 are formed at the welding position of the first half inner shell 611 and the second half inner shell 621. The first half outer housing 612 and the second half outer housing 622 are also fixed together by welding.
Preferably, the space between the inner and outer shells may be filled with insulation wool to reduce heat loss.
Referring to fig. 5, the heat-insulating housing 7 covers the first cylinder 11. Referring to fig. 6 to 9, the heat preservation housing 7 is provided with a first side edge 71 and a second side edge 72 opposite to the first side edge 71, the first side edge 71 is provided with a first notch 711, a second notch 712, a third notch 713 and a fourth notch 714 which are arranged at intervals, and the second side edge 72 is provided with at least two avoiding grooves 721 for avoiding the sensor seat. In the illustrated embodiment of the invention, the sensor receptacle comprises a first sensor receptacle 111 for mounting a temperature sensor and a second sensor receptacle 112 for mounting a pressure sensor.
Referring to fig. 5 to 7, when the cone 6 and the thermal insulation shell 7 are engaged in the first position, the first weld 613 corresponds to the first notch 711, and the second weld 614 corresponds to the third notch 713; when the cone 6 is mated with the insulated housing 7 in the second position, the first weld 613 corresponds to the second gap 712, and the second weld 614 corresponds to the fourth gap 714. Through setting up a plurality of breachs, work as cone 6 with when the cooperation of heat preservation casing 7 was in primary importance and second place, different breach cooperatees with the welding seam of cone 6 respectively to realized multi-angle complex feasibility, satisfied diversified installation demand.
In the illustrated embodiment of the present invention, the first side edge 71 has a first circumference, wherein the first notch 711, the second notch 712, the third notch 713, and the fourth notch 714 are spaced apart along the first circumference. The arc length between the first notch 711 and the third notch 712 is equal to the arc length between the second notch 712 and the fourth notch 714. The second side edge 72 is provided with a second circumference, the number of the avoiding grooves 721 is greater than or equal to four, and the avoiding grooves 721 are distributed at intervals along the second circumference; the first sensor mount 111 is disposed in one of the avoiding grooves 721, and the second sensor mount 112 is disposed in the other of the avoiding grooves 721. Since the first sensor holder 111 and the second sensor holder 112 are mounted at different angles in different applications, the plurality of escape grooves 721 provided in the present invention can cover the first sensor holder 111 and the second sensor holder 112 at various mounting angles, that is, the escape grooves 721 corresponding to the first sensor holder 111 and the second sensor holder 112 can be provided in any application. Such a design can avoid the trouble of designing different thermal insulation housings 7 for different installation positions of the first sensor holder 111 and the second sensor holder 112, thereby reducing the cost. It should be noted that in the illustrated embodiment of the present invention, only two of the avoiding grooves 721 can be engaged with the corresponding first sensor seat 111 and second sensor seat 112 at any installation angle, while the remaining avoiding grooves 721 are empty at this particular installation angle, i.e., they are not engaged with any sensor seat.
Referring to fig. 7, in the illustrated embodiment of the present invention, the thermal insulation housing 7 is composed of two parts, and the thermal insulation housing 7 includes a first half housing 73 and a second half housing 74, which together form a cylinder shape.
Referring to fig. 4 and 5, in the illustrated embodiment of the present invention, the first half inner shell 611 and the second half inner shell 621 are fixed inside the first side edge 71 of the thermal insulation shell 7; the first half shell 612 and the second half shell 622 are fixed outside the first side edge 71 of the thermal insulation shell 7. So set up, be convenient for equipment and welding.
In the illustrated embodiment of the present invention, the first half inner case 611 and the second half inner case 621 are provided with a flange 615 which is engaged with each other, and the first welding seam 613 and the second welding seam 614 are formed at the flange 615.
Compared with the prior art, the heat-insulating shell is provided with the plurality of notches, and when the cone 6 and the heat-insulating shell 7 are matched at the first position and the second position, different notches are respectively matched with the cone 6, so that the feasibility of multi-angle matching is realized, and the mounting diversity is improved. On this basis, by providing the plurality of escape grooves 721, the applicability to different mounting positions of the first sensor holder 111 and the second sensor holder 112 is increased, and the cost is saved.
The above embodiments are only for illustrating the invention and not for limiting the technical solutions described in the invention, and the understanding of the present specification should be based on the technical personnel in the field, and although the present specification has described the invention in detail with reference to the above embodiments, the technical personnel in the field should understand that the technical personnel in the field can still make modifications or equivalent substitutions to the present invention, and all the technical solutions and modifications thereof without departing from the spirit and scope of the present invention should be covered in the claims of the present invention.
Claims (10)
1. The utility model provides a tail gas aftertreatment casing, its include the cone and with cone matched with heat preservation casing, its characterized in that: the cone is provided with a first welding line and a second welding line; the heat preservation casing be equipped with first side reason and with the relative second side reason that sets up of first side reason, first side reason is equipped with first breach, second breach, third breach and the fourth breach that the interval set up, the second side reason is equipped with and is used for dodging at least two of sensor seat and dodges the groove, wherein:
when the cone body is matched with the heat-insulating shell body at a first position, the first welding line corresponds to the first notch, and the second welding line corresponds to the third notch;
when the cone body is matched with the heat preservation shell body at a second position, the first welding line corresponds to the second notch, and the second welding line corresponds to the fourth notch.
2. The exhaust aftertreatment housing of claim 1, wherein: the first side edge is provided with a first circumference, wherein the first notch, the second notch, the third notch and the fourth notch are distributed at intervals along the first circumference.
3. The exhaust aftertreatment housing of claim 2, wherein: the arc length between the first notch and the third notch is equal to the arc length between the second notch and the fourth notch.
4. The exhaust aftertreatment housing of claim 1, wherein: the cone comprises a first half shell and a second half shell, wherein the first half shell comprises a first half inner shell and a first half outer shell, and the second half shell comprises a second half inner shell and a second half outer shell; the first welding seam and the second welding seam are formed at the welding position of the first half inner shell and the second half inner shell.
5. The exhaust aftertreatment housing of claim 4, wherein: the first half inner shell and the second half inner shell are fixed on the inner side of a first lateral edge of the heat preservation shell, and the first half outer shell and the second half outer shell are fixed on the outer side of the first lateral edge of the heat preservation shell.
6. The exhaust aftertreatment housing of claim 5, wherein: the first half inner shell and the second half inner shell are provided with mutually matched flanges, and the first welding line and the second welding line are formed at the flanges.
7. The exhaust aftertreatment housing of claim 1, wherein: the cone is an air inlet cone, and the air inlet cone is provided with an air inlet.
8. The exhaust aftertreatment housing of claim 1, wherein: the second side edge is provided with a second circumference, the number of the avoiding grooves is more than or equal to four, and the avoiding grooves are distributed at intervals along the second circumference; the sensor seat comprises a first sensor seat for mounting a temperature sensor and a second sensor seat for mounting a pressure sensor, wherein the first sensor seat is arranged in one of the avoiding grooves, and the second sensor seat is arranged in the other avoiding groove.
9. An exhaust aftertreatment package, comprising a first cylinder, a first aftertreatment unit housed in the first cylinder, a second cylinder aligned with the first cylinder, a second aftertreatment unit housed in the second cylinder, a third cylinder disposed side by side with the first cylinder and the second cylinder, a third aftertreatment unit housed in the third cylinder and a connection housing connecting the second cylinder with the third cylinder, characterized in that the exhaust aftertreatment package further comprises the exhaust aftertreatment housing according to any one of claims 1 to 8, wherein the heat-insulating housing covers the first cylinder.
10. The exhaust aftertreatment package of claim 9, wherein: the tail gas aftertreatment package is roughly U-shaped, the first aftertreatment unit is a diesel catalytic oxidizer (DOC), the second aftertreatment unit is a Diesel Particulate Filter (DPF), and the third aftertreatment unit is a Selective Catalytic Reducer (SCR).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010190686.0A CN111271168A (en) | 2020-03-18 | 2020-03-18 | Tail gas aftertreatment casing and tail gas aftertreatment encapsulation |
| PCT/CN2020/117105 WO2021184716A1 (en) | 2020-03-18 | 2020-09-23 | Exhaust gas aftertreatment housing and exhaust gas aftertreatment package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010190686.0A CN111271168A (en) | 2020-03-18 | 2020-03-18 | Tail gas aftertreatment casing and tail gas aftertreatment encapsulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111271168A true CN111271168A (en) | 2020-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010190686.0A Pending CN111271168A (en) | 2020-03-18 | 2020-03-18 | Tail gas aftertreatment casing and tail gas aftertreatment encapsulation |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111271168A (en) |
| WO (1) | WO2021184716A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021184716A1 (en) * | 2020-03-18 | 2021-09-23 | 天纳克（苏州）排放系统有限公司 | Exhaust gas aftertreatment housing and exhaust gas aftertreatment package |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7611561B2 (en) * | 2006-07-20 | 2009-11-03 | Benteler Automotive Corporation | Diesel exhaust filter construction |
| CN202789034U (en) * | 2012-08-31 | 2013-03-13 | 东风汽车公司 | Catalytic converter heat shield |
| CN202832739U (en) * | 2012-10-10 | 2013-03-27 | 东风汽车公司 | Exhaust manifold catalytic converter assembly |
| JP6642224B2 (en) * | 2016-04-13 | 2020-02-05 | いすゞ自動車株式会社 | Exhaust gas purification device |
| CN107956568A (en) * | 2017-12-06 | 2018-04-24 | 佛吉亚排气控制技术开发(上海）有限公司 | Vehicle exhaust post-processes assembly |
| CN110080861A (en) * | 2018-01-26 | 2019-08-02 | 天纳克（苏州）排放系统有限公司 | Exhaust gas post-treatment device |
| CN110792497A (en) * | 2019-10-08 | 2020-02-14 | 一汽解放汽车有限公司 | U type aftertreatment structure |
| CN211737265U (en) * | 2020-03-18 | 2020-10-23 | 天纳克（苏州）排放系统有限公司 | Tail gas aftertreatment casing and tail gas aftertreatment encapsulation |
| CN111271168A (en) * | 2020-03-18 | 2020-06-12 | 天纳克（苏州）排放系统有限公司 | Tail gas aftertreatment casing and tail gas aftertreatment encapsulation |
-
2020
- 2020-03-18 CN CN202010190686.0A patent/CN111271168A/en active Pending
- 2020-09-23 WO PCT/CN2020/117105 patent/WO2021184716A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021184716A1 (en) * | 2020-03-18 | 2021-09-23 | 天纳克（苏州）排放系统有限公司 | Exhaust gas aftertreatment housing and exhaust gas aftertreatment package |
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| Publication number | Publication date |
|---|---|
| WO2021184716A1 (en) | 2021-09-23 |
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