CN215979557U - Packaging structure of diesel engine tail gas aftertreatment device - Google Patents
Packaging structure of diesel engine tail gas aftertreatment device Download PDFInfo
- Publication number
- CN215979557U CN215979557U CN202120181056.7U CN202120181056U CN215979557U CN 215979557 U CN215979557 U CN 215979557U CN 202120181056 U CN202120181056 U CN 202120181056U CN 215979557 U CN215979557 U CN 215979557U
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- steel shell
- diesel engine
- end cover
- packaging structure
- 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
Images
Landscapes
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
Abstract
The utility model discloses an encapsulation structure of a diesel engine tail gas aftertreatment device, which comprises a diesel engine particulate matter purification carrier, a sealing gasket, a limiting plate, a fastening hoop, a graphite composite pad, a stainless steel shell, an air inlet end cover and an air outlet end cover; the stainless steel shell is cylindrical; the sealing gasket wraps the diesel engine particle purification carrier and is arranged at an axial position in the stainless steel shell; the limiting plate is inserted into a limiting groove in the stainless steel shell; the fastening hoop is additionally arranged on the stainless steel shell; the air inlet end cover is connected with the front end of the stainless steel shell; the air outlet end cover is connected with the rear end of the stainless steel shell; the graphite composite pad is additionally arranged between the air inlet end cover, the air outlet end cover and the stainless steel shell. The utility model not only ensures the practicability of the device, but also can easily disassemble and assemble the post-treatment device, and is convenient for maintenance and cleaning of parts of the diesel engine tail gas post-treatment device, namely replacement when the parts are damaged.
Description
Technical Field
The utility model relates to the field of diesel engine tail gas aftertreatment, in particular to an encapsulation structure of a diesel engine tail gas aftertreatment device.
Background
In order to meet increasingly stringent exhaust emission standards, diesel exhaust aftertreatment devices have become an integral part of diesel vehicles. The diesel engine tail gas after-treatment device is used daily, particulate matters are deposited in the trap continuously, the exhaust back pressure of an engine is increased gradually, when the exhaust back pressure reaches a certain limit value, the particulate matters deposited in the particulate trap must be regenerated to clean the particulate matters, otherwise, the performance of the engine, such as dynamic performance, economical efficiency and the like, is influenced.
The regeneration mode of the diesel particulate filter is mainly divided into active regeneration and passive regeneration. Wherein the initiative regeneration mainly utilizes the energy of plus to make diesel engine particle trap's inside reach the required temperature of particulate matter regeneration, makes the abundant oxidation combustion of particulate matter ability, mainly includes: electric heating regeneration, oil injection combustion-supporting regeneration, microwave or infrared heating regeneration and the like; the passive regeneration mainly depends on various catalysts to reduce the ignition temperature of the particulate matters, so that the particulate matters can be ignited at the exhaust temperature of a normal engine, and the oxidation regeneration is obtained, and mainly comprises catalytic regeneration, continuous regeneration, fuel additive regeneration and the like.
However, in either active regeneration or passive regeneration, the particulate matter deposited inside the particulate trap is finally oxidized and combusted, and the oxidation and combustion of the particulate matter releases a large amount of heat, which may cause a large temperature gradient in the internal region of the carrier, resulting in damage to the carrier or a molten state in a part of the internal region, and at this time, the carrier in the diesel engine after-treatment device needs to be replaced. The traditional process is that the whole post-processing device is used or scrapped, which causes material waste and unnecessary economic loss.
SUMMERY OF THE UTILITY MODEL
In order to reduce the packaging cost of the diesel engine tail gas post-treatment device and simplify the production process, the utility model provides a packaging structure of the diesel engine tail gas post-treatment device.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
a packaging structure of a diesel engine tail gas aftertreatment device comprises a diesel engine particulate matter purification carrier, a sealing gasket, a limiting plate, a fastening hoop, a graphite composite pad, a stainless steel shell, an air inlet end cover and an air outlet end cover; the stainless steel shell is cylindrical; the sealing gasket wraps the diesel engine particle purifying carrier and is arranged at an axial position in the stainless steel shell; the limiting plate is inserted into a limiting groove in the stainless steel shell; the fastening hoop is additionally arranged on the stainless steel shell; the air inlet end cover is connected with the front end of the stainless steel shell; the air outlet end cover is connected with the rear end of the stainless steel shell; the graphite composite pad is additionally arranged among the air inlet end cover, the air outlet end cover and the stainless steel shell.
Optionally, the stainless steel shell is manufactured by blanking into a plate, rolling into a circle, and then performing suspension pressing and flanging.
Optionally, the fastening hoop is fastened on the stainless steel shell through bolts and nuts.
Optionally, the limiting plate is fixed to the stainless steel casing by a tapping screw.
Optionally, high-temperature glue is applied to the position of the stainless steel shell connecting gap and the position of the limiting plate where the self-tapping screw is installed.
Optionally, the front end and the rear end of the stainless steel shell form suspension flanges and then are respectively connected with the air inlet end cover and the air outlet end cover.
Optionally, the suspension flange is connected by a quick-connection hoop or is provided with a hole, and is fastened and connected by a bolt and a nut.
Compared with the prior art, the utility model has the beneficial effects that:
firstly, the method is adopted to carry out the post-treatment device of the diesel engine, so that the purchase cost of the press-mounting machine can be saved; secondly, the packaging process adopts a full-mechanical combination method without a welding process, so that the welding cost during production is saved, and the pollution to the environment caused by the welding process is avoided; finally, after the tail gas aftertreatment device is packaged by the method, when the internal carrier is damaged, the fastening hoop and the limiting plate are directly detached to complete the replacement of the internal carrier, the packaging shell does not need to be damaged, and the internal carrier can still be restored to the original state after the replacement is completed, so that the repeated waste of materials is avoided.
Drawings
FIG. 1 is a schematic diagram of a packaging structure of a diesel exhaust aftertreatment device of the utility model;
FIG. 2 is a view taken along line A-A of FIG. 1;
fig. 3 is a view from B-B in fig. 1.
In the figure, 1-particulate purification support; 2-sealing the gasket; 3-a limiting plate; 4-fastening a hoop; 5-self-tapping screw; 6-graphite composite mats; 7-stainless steel housing; 8-an air inlet end cover; 9-air outlet end cover.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 to 3, an encapsulation structure of a diesel engine exhaust aftertreatment device comprises a diesel engine particulate purification carrier 1, a sealing gasket 2, a limiting plate 3, a fastening hoop 4, a graphite composite pad 6, a stainless steel shell 7, an air inlet end cover 8 and an air outlet end cover 9; the stainless steel shell 7 is cylindrical; the sealing gasket 2 wraps the diesel engine particle purification carrier 1 and is arranged at an axial position in the stainless steel shell 7; the limiting plate 3 is inserted into a limiting groove in the stainless steel shell 7; the fastening hoop 4 is additionally arranged on the stainless steel shell 7; the air inlet end cover 8 is connected with the front end of the stainless steel shell 7; the air outlet end cover 9 is connected with the rear end of the stainless steel shell 7; the graphite composite pad 6 is additionally arranged between the air inlet end cover 8, the air outlet end cover 9 and the stainless steel shell 7.
In this embodiment, the limiting plate 3 is used to limit the axial position of the particulate purification carrier 1 in the stainless steel casing 7, so as to prevent the particulate purification carrier 1 from sliding backwards in the stainless steel casing 7 due to the excessive exhaust pressure of the diesel engine, and the particulate purification carrier is prevented from being broken by separating from the casing.
In this embodiment, the graphite composite gasket 6 is disposed between the flange of the inlet end cap 8 and the flange of the front end of the stainless steel housing 7, and between the flange of the outlet end cap 9 and the flange of the rear end of the stainless steel housing 7, thereby achieving the effects of shock absorption and gas sealing.
In one embodiment, the stainless steel housing 7 is made by first blanking into plates, then rolling into a circle, and then overhung.
In this embodiment, the stainless steel housing 7 is crimped to form a crimping flange, thus eliminating the need for separate additional welding of the flange.
In one embodiment, the fastening hoop 4 is fastened on the stainless steel housing 7 through bolts and nuts.
In this embodiment, the number of the fastening hoops 4 is not limited, in a preferred case, the fastening hoops 4 are respectively arranged at the front end and the rear end of the stainless steel shell 7, and the number of the fastening hoops 4 is increased between the front end and the rear end of the stainless steel shell 7 according to the length of the particle purification carrier.
In one embodiment, the retainer plate 3 is fixed to the stainless steel housing 7 by self-tapping screws 5.
In this embodiment, the limiting plate 3 is fixed on the limiting groove of the stainless steel housing 7 by the tapping screw 5, thereby limiting the axial position of the particulate purification carrier 1 in the stainless steel housing 7.
In one embodiment, high-temperature glue is applied to the positions of the stainless steel shell 7 connecting the gap and the limiting plate 3 and the self-tapping screw 5.
In this embodiment, the stainless steel shell 7 is connected the gap and is beaten high temperature glue with limiting plate 3 and installs self-tapping screw 5 department gap additional, can avoid gas leakage.
In one embodiment, the front end and the rear end of the stainless steel shell 7 are respectively connected with the air inlet end cover 8 and the air outlet end cover 9 after forming suspension flanges.
In the embodiment, a suspension pressure flange is formed at the front end of a stainless steel shell 7 and connected with an air inlet end cover 8, and a graphite composite pad 6 is additionally arranged between the suspension pressure flange and the air inlet end cover 8 to form sealing; the rear end of the stainless steel shell 7 is also provided with a suspension flange connected with the air outlet end cover 9, and a graphite composite pad 6 is additionally arranged between the suspension flange and the air outlet end cover 9 to form sealing.
In one embodiment, the suspension flange is connected by a quick-connect clamp or is provided with a hole, and the connection is fastened by a bolt and a nut.
The packaging structure adopted by the utility model has a simple process, all fastening parts are quick-detachable, and the types of detaching tools needed for detaching or replacing the particulate matter purification carrier 1 are single and are common tools, so that the detaching difficulty of the post-treatment device during off-line maintenance is reduced, and the maintenance time is saved.
The packaging process of the packaging structure comprises the following steps:
s1, blanking the stainless steel shell 7 into a plate, and then rolling the plate into a circle to form a cylinder shape;
s2, wrapping the particle purification carrier 1 by using the sealing gasket 2, and filling the wrapped particle purification carrier into a stainless steel shell 7;
s3, adjusting the axial position of the particulate matter purification carrier 1 in the stainless steel shell 7, and inserting the limit plate 3 into a limit groove in the stainless steel shell 7;
s4, installing the fastening hoop 4 on the stainless steel shell 7;
s5, performing suspension pressing process on the front end and the rear end of the stainless steel shell 7 assembled by the particle purification carrier 1 to form suspension pressing flanges at the two ends of the shell;
s6, the air inlet end cover 8 and the air outlet end cover 9 are respectively connected with the suspension pressure flanges at the front end and the rear end of the stainless steel shell 7, and the graphite composite pad 6 is additionally arranged for sealing.
In this embodiment, the manufacturing process of the stainless steel housing 7 is as follows: the method comprises the steps of blanking into a plate, rolling the plate into a circle, and finally performing suspension pressing and flanging to form the suspension pressing flange, so that the flange does not need to be additionally welded independently.
In this embodiment, when encapsulating particulate matter purification carrier 1, lightly take and put, pay attention to not colliding with, avoid the carrier to damage.
In this embodiment, the limiting plate 3 is used to limit the axial position of the particulate purification carrier 1 in the stainless steel casing 7, so as to prevent the particulate purification carrier 1 from sliding backwards in the stainless steel casing 7 due to the excessive exhaust pressure of the diesel engine, and the particulate purification carrier is prevented from being broken by separating from the casing.
In this embodiment, the graphite composite gasket 6 is disposed between the flange of the inlet end cap 8 and the flange of the front end of the stainless steel housing 7, and between the flange of the outlet end cap 9 and the flange of the rear end of the stainless steel housing 7, thereby achieving the effects of shock absorption and gas sealing.
In one exemplary step S2, the particulate cleaning substrate 1 is an oxidation catalyst, a particulate trap or a selective catalytic reduction.
In step S4, two fastening hoops 4 are respectively attached to the front and rear ends of the stainless steel shell 7.
In an embodiment, in step S4, at least one fastening hoop 4 is additionally installed between the front end and the rear end of the stainless steel shell 7.
In this embodiment, the stainless steel shell 7 has at least two front and back ends, and the number of the fastening hoops 4 can be increased in the middle according to the length of the particulate purification carrier 1.
In an embodiment step S4, the fastening hoop 4 is fixed on the stainless steel housing 7 by bolts and nuts and the limit plate 3 is fixed by the tapping screws 5.
In an embodiment step S4, after the main body packaging is completed, high temperature glue is applied to the stainless steel case 7 connecting gap and the position of the limiting plate 3 where the tapping screw 5 is installed.
In this embodiment, install automatic screw department additional at stainless steel shell 7 joint line and limiting plate 3 and beat the high temperature glue, can avoid gas leakage.
In step S7, the suspension flange is fastened to the inlet end cover 8 or the outlet end cover 9 by bolts using quick connect clips or holes punched thereon.
According to the packaging method of the diesel engine tail gas after-treatment device, all parts are mechanically connected and combined, the need of a special press-fitting machine and a large amount of welding work in the traditional diesel engine tail gas after-treatment device is avoided, and the pollution of part of processes to the environment is avoided on the basis of saving the production cost.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, and the scope of protection is still within the scope of the utility model.
Claims (7)
1. The utility model provides a diesel engine tail gas aftertreatment device's packaging structure which characterized in that: the device comprises a diesel engine particle purification carrier, a sealing gasket, a limiting plate, a fastening hoop, a graphite composite pad, a stainless steel shell, an air inlet end cover and an air outlet end cover; the stainless steel shell is cylindrical; the sealing gasket wraps the diesel engine particle purifying carrier and is arranged at an axial position in the stainless steel shell; the limiting plate is inserted into a limiting groove in the stainless steel shell; the fastening hoop is additionally arranged on the stainless steel shell; the air inlet end cover is connected with the front end of the stainless steel shell; the air outlet end cover is connected with the rear end of the stainless steel shell; the graphite composite pad is additionally arranged among the air inlet end cover, the air outlet end cover and the stainless steel shell.
2. The packaging structure of the diesel engine exhaust after-treatment device according to claim 1, characterized in that: the stainless steel shell is manufactured by blanking into a plate, rolling into a circle, and then suspending, pressing and flanging.
3. The packaging structure of the diesel engine exhaust after-treatment device according to claim 2, characterized in that: the fastening hoop is fastened on the stainless steel shell through bolts and nuts.
4. The packaging structure of the diesel engine exhaust after-treatment device according to claim 1, characterized in that: the limiting plate is fixed on the stainless steel shell through a self-tapping screw.
5. The packaging structure of the diesel engine exhaust after-treatment device according to claim 4, characterized in that: and high-temperature glue is applied to the positions of the stainless steel shell connecting gap and the limiting plate where the self-tapping screws are additionally arranged.
6. The packaging structure of the diesel engine exhaust after-treatment device according to claim 1, characterized in that: and the front end and the rear end of the stainless steel shell form suspension pressure flanges and are respectively connected with the air inlet end cover and the air outlet end cover.
7. The packaging structure of the diesel engine exhaust after-treatment device according to claim 6, characterized in that: the suspension flange is connected by a quick-connection hoop or is perforated and is fastened and connected by bolts and nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120181056.7U CN215979557U (en) | 2021-01-22 | 2021-01-22 | Packaging structure of diesel engine tail gas aftertreatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120181056.7U CN215979557U (en) | 2021-01-22 | 2021-01-22 | Packaging structure of diesel engine tail gas aftertreatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215979557U true CN215979557U (en) | 2022-03-08 |
Family
ID=80567392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120181056.7U Active CN215979557U (en) | 2021-01-22 | 2021-01-22 | Packaging structure of diesel engine tail gas aftertreatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215979557U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112746882A (en) * | 2021-01-22 | 2021-05-04 | 成都青舟特机环境技术有限公司 | Packaging structure and packaging method of diesel engine tail gas aftertreatment device |
-
2021
- 2021-01-22 CN CN202120181056.7U patent/CN215979557U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112746882A (en) * | 2021-01-22 | 2021-05-04 | 成都青舟特机环境技术有限公司 | Packaging structure and packaging method of diesel engine tail gas aftertreatment device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7501005B2 (en) | Exhaust treatment device having submerged connecting flanges | |
| JP4972228B2 (en) | Exhaust gas purification device for internal combustion engine | |
| CN102378642B (en) | Exhaust gas filtering device | |
| WO2006081265A1 (en) | Turbocharger/turbogenerator engine system with inter-unit exhaust after-treatment device | |
| CN215979557U (en) | Packaging structure of diesel engine tail gas aftertreatment device | |
| CN104564252A (en) | After-treatment device for diesel vehicle emission | |
| CN112746882A (en) | Packaging structure and packaging method of diesel engine tail gas aftertreatment device | |
| US9656208B2 (en) | Exhaust gas treatment unit for an exhaust gas recirculation line and internal combustion engine and motor vehicle having an exhaust-gas treatment unit | |
| CN210530964U (en) | Cylinder type post-processing sealing structure | |
| CN213177189U (en) | Post-treatment barrel flange hoop connecting structure | |
| CN209743066U (en) | Low-pressure EGR cooler with filter screen | |
| CN209976611U (en) | Cylinder connecting structure for vehicle tail gas black smoke treatment system | |
| US20100139244A1 (en) | Self-supporting mount for catalyst carrier body and exhaust system having at least one mount | |
| KR200440063Y1 (en) | Separating type exhaust-gas reduction apparatus for automobile | |
| CN216950537U (en) | Automobile exhaust treatment device convenient to maintain | |
| CN211975113U (en) | Box aftertreatment ware of diesel vehicle and structure is dismantled to pull formula DPF thereof | |
| CN219176426U (en) | Three-way catalyst assembly, engine assembly and vehicle | |
| CN210068271U (en) | Cylinder type catalyst package of diesel engine | |
| CN217440144U (en) | Integrated mounting bracket for bulldozer exhaust aftertreatment and air filtration | |
| CN220487703U (en) | Packaging device of three-way catalyst | |
| CN216642240U (en) | Double-deck insulation construction of automobile exhaust aftertreatment | |
| CN214118289U (en) | Non-road mobile machinery composite regenerated particle post-processing device | |
| WO2014158981A1 (en) | Exhaust treatment component mounting system | |
| CN216240874U (en) | DPF regeneration device adopting natural gas combustion | |
| CN216518229U (en) | Novel gasoline vehicle post-processing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |