CN113006903A - Catalyst package - Google Patents
Catalyst package Download PDFInfo
- Publication number
- CN113006903A CN113006903A CN201911308693.XA CN201911308693A CN113006903A CN 113006903 A CN113006903 A CN 113006903A CN 201911308693 A CN201911308693 A CN 201911308693A CN 113006903 A CN113006903 A CN 113006903A
- Authority
- CN
- China
- Prior art keywords
- catalyst
- end cone
- axis
- package
- conical section
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—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
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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
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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
- F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
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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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model provides a catalyst encapsulation, its includes the casing of integral type and encapsulates catalyst carrier in the casing, the casing includes cylindric encapsulation portion and certainly the integrative end awl that extends of encapsulation portion, encapsulation portion be equipped with the opposite opening that extends of end awl, catalyst carrier pass through the liner certainly the opening is packed into in the encapsulation portion. Compared with the prior art, the packaging part and the end cone are of an integrated structure, welding between the packaging part and the end cone is omitted, and manufacturing is easy.
Description
Technical Field
The invention relates to a catalyst packaging device, and belongs to the technical field of engine tail gas aftertreatment.
Background
Referring to fig. 1, the prior art generally adopts the manufacturing method of plugging a carrier 1 ' and a gasket 2 ' into a shell 3 ', then reducing and shaping the packaging shell 3 ' by a shaping machine, and finally welding an end cone 4 ' at one end of the packaging shell to carry out catalyst packaging. The mating of the housing 3 'and the end cone 4' is usually performed in an intercalated manner (e.g. inserting the housing 3 'into the end cone 4' or inserting the end cone 4 'into the housing 3').
Since the shell 3 'and the end cone 4' need to be welded in the welding fitting area 5 'for the entire circumference after insertion, the end cone 4' and the shell 3 'have enough welding area 6'. To ensure that the length of the weld zone 6' is sufficient, it is often necessary to employ a flaring or necking process to ensure a full circumferential diametric dimensional tolerance of the profile to ensure a weld fit. In addition, a transition region 8 ' remains between the reshaping region 7 ' and the welding region 6 ', which inevitably results in an increase in the overall length of the catalyst package. The welding and the manufacture of the end cone require a great deal of time and cost, and the welded part is easy to fail, thereby affecting the durability of the product.
Disclosure of Invention
It is an object of the invention to provide a catalyst package which is easy to manufacture.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a catalyst encapsulation, its includes the casing of integral type and encapsulates catalyst carrier in the casing, the casing includes cylindric encapsulation portion and certainly the integrative end awl that extends of encapsulation portion, encapsulation portion be equipped with the opposite opening that extends of end awl, catalyst carrier pass through the liner certainly the opening is packed into in the encapsulation portion.
As a further improvement of the present invention, the housing is provided with an axis, and the length of the mat along the axis is smaller than the length of the catalyst carrier along the axis.
As a further improvement of the present invention, both ends of the catalyst carrier respectively extend beyond the mat along the axis.
As a further development of the invention, the catalyst support does not extend into the end cone.
As a further improved technical solution of the present invention, the end cone includes a first tapered section and a second tapered section connected to the first tapered section, wherein a slope of a first outer surface of the first tapered section is greater than a slope of a second outer surface of the second tapered section.
As a further improvement of the invention, the first tapered section is connected to the encapsulation.
As a further improved technical solution of the present invention, the end cone further includes a cylindrical section connected to the second conical section, and an axis of the cylindrical section overlaps with an axis of the encapsulation portion.
As a further improved technical scheme of the invention, the end cone is manufactured by stamping or spinning.
As a further improved technical scheme of the invention, the end cone is provided with an installation inclined plane for welding the installation seat.
As a further improved technical scheme of the invention, the installation inclined plane is provided with a through hole.
Compared with the prior art, the packaging part and the end cone are of an integrated structure, welding between the packaging part and the end cone is omitted, and manufacturing is easy.
Drawings
FIG. 1 is a schematic cross-sectional view of a catalyst package in the prior art.
FIG. 2 is a top view of a catalyst package of the present invention.
3 fig. 3 3 3 is 3 a 3 schematic 3 sectional 3 view 3 taken 3 along 3 line 3 a 3- 3 a 3 in 3 fig. 3 2 3. 3
Detailed Description
Referring to fig. 2 and 3, the present invention discloses a catalyst package 100, which includes a housing 1 and a catalyst carrier 2 enclosed in the housing 1. The housing 1 includes a cylindrical enclosure portion 11 and an end cone 12 integrally extending from the enclosure portion 11. The packing portion 11 is provided with an opening 111 extending opposite to the end cone 12, and the catalyst carrier 2 is inserted into the packing portion 111 from the opening 111 through the gasket 3. The end cone 12 may be disposed at either the inlet end or the outlet end. After the catalyst carrier 2 wrapped with the mat 3 is inserted into the packing portion 111, the shaping region (i.e., the region where the packing portion 11 is located) can be shaped by the shaping device to control the GBD.
The housing 1 is provided with an axis 112, and the length of the mat 3 along the axis 112 is smaller than the length of the catalyst carrier 2 along the axis 112. Both ends of the catalyst carrier 2 extend beyond the mat 3 along the axis 112, respectively. The catalyst support body 2 does not extend into the end cone 12.
The end cone 12 comprises a first conical section 121 and a second conical section 122 connected to the first conical section 121, wherein the slope K1 of the first outer surface 1211 of the first conical section 121 is greater than the slope K2 of the second outer surface 1221 of the second conical section 122. So configured, through this transition, the manufacture of the end cone 12 is facilitated. Furthermore, in the illustrated embodiment of the invention, the first conical section 121 is connected to the encapsulation 11. The end cone 12 further comprises a cylindrical section 123 connected to the second conical section 122, the axis 1231 of the cylindrical section 123 overlapping the axis 112 of the enclosure 11.
In one embodiment of the invention, the end cone 12 is made by stamping or spinning. The end cone 12 is provided with a mounting bevel 124 for welding a mounting seat (not shown). The welding installation seat can be a sensor installation seat or a nozzle installation seat and the like according to different application requirements. The mounting ramp 124 is provided with a through-hole 1241 so that a corresponding element can extend from the through-hole 1241 into the end cone 12.
Compared with the prior art, the packaging part 11 and the end cone 12 are of an integrated structure (namely a part), welding between the packaging part and the end cone is omitted, welding procedures and welding equipment investment are saved, and the packaging part is easy to manufacture. In addition, the end cone 12 and the packaging part 11 which are integrated only control the shaping of GBD in one step, welding is not needed, necking or flaring of a welding area is not needed, a transition area is not needed, the design space is saved, and the length of the integrated shell 1 can be shortened.
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 catalyst encapsulation, its includes the casing of integral type and encapsulates catalyst carrier in the casing, its characterized in that, the casing includes cylindric encapsulation portion and certainly the integrative end awl that extends of encapsulation portion, encapsulation portion be equipped with the opening that the end awl extends opposite, catalyst carrier pass through the liner certainly the opening is stuffed in the encapsulation portion.
2. The catalyst package of claim 1, wherein: the housing is provided with an axis, and the length of the mat along the axis is smaller than the length of the catalyst carrier along the axis.
3. The catalyst package of claim 2, wherein: both ends of the catalyst carrier extend beyond the mat along the axis, respectively.
4. The catalyst package of claim 1, wherein: the catalyst support does not extend into the end cone.
5. The catalyst package of claim 1, wherein: the end cone comprises a first conical section and a second conical section connected with the first conical section, wherein the slope of the first outer surface of the first conical section is larger than that of the second outer surface of the second conical section.
6. The catalyst package of claim 5, wherein: the first tapered section is connected to the encapsulation.
7. The catalyst package of claim 5, wherein: the end cone further comprises a cylindrical section connected with the second conical section, and the axis of the cylindrical section is overlapped with the axis of the packaging part.
8. The catalyst package of claim 1, wherein: the end cone is made by stamping or spinning.
9. The catalyst package of claim 1, wherein: and the end cone is provided with an installation inclined plane for welding the installation seat.
10. The catalyst package of claim 9, wherein: the installation inclined plane is provided with a through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911308693.XA CN113006903A (en) | 2019-12-18 | 2019-12-18 | Catalyst package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911308693.XA CN113006903A (en) | 2019-12-18 | 2019-12-18 | Catalyst package |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113006903A true CN113006903A (en) | 2021-06-22 |
Family
ID=76382409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911308693.XA Pending CN113006903A (en) | 2019-12-18 | 2019-12-18 | Catalyst package |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113006903A (en) |
-
2019
- 2019-12-18 CN CN201911308693.XA patent/CN113006903A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210622 |
|
| WD01 | Invention patent application deemed withdrawn after publication |