CN214787634U - Clam shell device of tail gas purifier capable of preventing high-temperature blowing corrosion - Google Patents
Clam shell device of tail gas purifier capable of preventing high-temperature blowing corrosion Download PDFInfo
- Publication number
- CN214787634U CN214787634U CN202120517081.8U CN202120517081U CN214787634U CN 214787634 U CN214787634 U CN 214787634U CN 202120517081 U CN202120517081 U CN 202120517081U CN 214787634 U CN214787634 U CN 214787634U
- Authority
- CN
- China
- Prior art keywords
- clam shell
- shell half
- half pipe
- conical surface
- flange
- 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)
Abstract
The utility model relates to a tail gas purifier clam shell device capable of preventing high temperature erosion, which comprises an upper clam shell, an upper clam shell half pipe, a lower clam shell half pipe and a flange; an airflow guiding conical surface is arranged at the inlet end of the central hole of the flange, and the inner diameter of the airflow guiding conical surface is gradually reduced from the inlet end to the outlet end of the flange; the step is arranged at the outlet end of the flange, the inlet ends of the upper clam shell half pipe and the lower clam shell half pipe are all installed in the step, the inner circle of the upper clam shell half pipe and the inner circle of the lower clam shell half pipe are all located on the outer side of the inner circle of the step, and the inner circle of the step is located on the outer side of the outlet end of the airflow guiding conical surface. The utility model can avoid the high-temperature high-speed airflow from directly blowing the inlet ends of the upper clam shell half pipe and the lower clam shell half pipe, thereby avoiding the problem of excessive discharge caused by structural failure; the utility model discloses simple structure need not change original manufacturing process route, so manufacturing cost is lower.
Description
Technical Field
The utility model relates to a tail gas purifier clamshell device, specifically speaking are tail gas purifier clamshell device that can prevent high temperature erosion by blowing.
Background
In order to meet the six national regulations on automobile exhaust emission, various supercharged high-power engines are started to be introduced by automobile factories, and the exhaust temperature and the exhaust flow of the engines are obviously improved compared with the engines in the five national states.
After the exhaust temperature and the exhaust flow are increased, the grade of a material of a flange and a clam shell of a connection part of the three-way catalyst and the engine supercharger needs to be increased so as to cope with the high-temperature and high-pressure air flow erosion, otherwise, the connection part fails, and the phenomenon of fracture and air leakage is generated so as to influence the emission of automobile exhaust, but the scheme can lead the cost of the automobile to be increased and reduce the core competitiveness.
At present, the main measures for high-temperature and high-speed air flow blowing corrosion are taken;
(1) the material grades of the flange and the clam shell are improved;
(2) and an integrated casting structure is adopted.
If the material grade of the flange and the clam shell is improved, the cost is greatly increased; if the integral casting structure is adopted, the process route of the product is changed, and the cost is greatly increased.
Disclosure of Invention
The utility model aims at overcoming the not enough of existence among the prior art, provide a simple structure, need not to change original product process route and can reduce cost effectively prevent high temperature erosion by blowing tail gas purifier clam shell device.
According to the technical scheme provided by the utility model, the clam shell device of the tail gas purifier capable of preventing high-temperature erosion comprises an upper clam shell, an upper clam shell half pipe, a lower clam shell half pipe and a flange; the upper clam shell half pipe is integrally connected to the upper clam shell, the lower clam shell half pipe is integrally connected to the lower clam shell, the upper clam shell is overlapped with the lower clam shell, and the upper clam shell half pipe is overlapped with the lower clam shell half pipe;
an airflow guiding conical surface is arranged at the inlet end of the central hole of the flange, and the inner diameter of the airflow guiding conical surface is gradually reduced from the inlet end to the outlet end of the flange; the step is arranged at the outlet end of the flange, the inlet ends of the upper clam shell half pipe and the lower clam shell half pipe are all installed in the step, the inner circle of the upper clam shell half pipe and the inner circle of the lower clam shell half pipe are all located on the outer side of the inner circle of the step, and the inner circle of the step is located on the outer side of the outlet end of the airflow guiding conical surface.
Preferably, the air flow guiding cone is a pyramid.
Preferably, the airflow guide conical surface is a conical surface, and the included angle between the airflow guide conical surface and the axis of the central hole of the flange is 40-50 degrees.
The utility model can avoid the high-temperature high-speed airflow from directly blowing the inlet ends of the upper clam shell half pipe and the lower clam shell half pipe, thereby avoiding the problem of excessive discharge caused by structural failure; the utility model discloses simple structure need not change original manufacturing process route, so manufacturing cost is lower.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged view of a portion a in fig. 1.
Fig. 3 is an enlarged view of a portion B in fig. 1.
Fig. 4 is a schematic flow diagram of the high-temperature and high-speed airflow in the present invention.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
A clam shell device of an exhaust purifier capable of preventing high-temperature erosion comprises an upper clam shell 11, an upper clam shell half pipe 12, a lower clam shell 21, a lower clam shell half pipe 22 and a flange 3; an upper clam shell half pipe 12 is integrally connected to the upper clam shell 11, a lower clam shell half pipe 22 is integrally connected to the lower clam shell 21, the upper clam shell 11 and the lower clam shell 21 are in lap joint, and the upper clam shell half pipe 12 and the lower clam shell half pipe 22 are in lap joint;
an airflow guide conical surface 3.1 is arranged at the inlet end of a central hole of the flange 3, and the inner diameter of the airflow guide conical surface 3.1 is gradually reduced from the inlet end to the outlet end of the flange 3; be equipped with step 3.2 at the exit end department of flange 3, the entry end of going up piece clam shell semicanal 12 and lower piece clam shell semicanal 22 is all installed in step 3.2, and the interior circle of going up piece clam shell semicanal 12 and the interior circle of lower piece clam shell semicanal 22 all are located the outside of the interior circle of step 3.2, the interior circle of step 3.2 is located the exit end outside of the air current direction conical surface 3.1.
The air flow guide conical surface 3.1 is a conical surface, and the included angle between the air flow guide conical surface 3.1 and the axis of the central hole of the flange 3 is 40-50 degrees.
The utility model arranges an air flow guiding conical surface 3.1 and a step 3.2 on a flange 3, the inlet ends of an upper clam shell half-pipe 12 and a lower clam shell half-pipe 22 are all arranged in the step 3.2, the inner circle of the upper clam shell half-pipe 12 and the inner circle of the lower clam shell half-pipe 22 are both positioned outside the inner circle of the step 3.2, the inner circle of the step 3.2 is positioned outside the outlet end of the air flow guiding conical surface 3.1, the high-temperature high-speed air flow generated by an engine is guided by the air flow guiding conical surface 3.1 when passing through the flange 3, the high-temperature high-speed air flow deviates from the overlapping part of the inlet ends of the upper clam shell half-pipe 12 and the lower clam shell half-pipe 22, therefore, the problem that the discharge exceeds the standard due to structural failure is avoided because the lap joint of the inlet ends of the upper clam shell half pipe 12 and the lower clam shell half pipe 22 is directly eroded by high-temperature high-speed airflow (because the lap joint of the inlet ends of the upper clam shell half pipe 12 and the lower clam shell half pipe 22 is the weakest part of the whole structural performance).
Claims (3)
1. A clam shell device of an exhaust purifier capable of preventing high-temperature erosion comprises an upper clam shell (11), an upper clam shell half pipe (12), a lower clam shell (21), a lower clam shell half pipe (22) and a flange (3); an upper clam shell half pipe (12) is integrally connected to the upper clam shell (11), a lower clam shell half pipe (22) is integrally connected to the lower clam shell (21), the upper clam shell (11) and the lower clam shell (21) are overlapped together, and the upper clam shell half pipe (12) and the lower clam shell half pipe (22) are overlapped together;
the method is characterized in that: an airflow guide conical surface (3.1) is arranged at the inlet end of a central hole of the flange (3), and the inner diameter of the airflow guide conical surface (3.1) is gradually reduced from the inlet end to the outlet end of the flange (3); be equipped with step (3.2) at the exit end department of flange (3), the entry end of going up piece clam shell half-pipe (12) and lower piece clam shell half-pipe (22) is all installed in step (3.2), and the interior circle of going up piece clam shell half-pipe (12) and the interior circle of lower piece clam shell half-pipe (22) all are located the outside of the interior circle of step (3.2), the interior circle of step (3.2) is located the exit end outside of air current direction conical surface (3.1).
2. The clam shell device of the exhaust purifier capable of preventing the high temperature blowing corrosion of claim 1, wherein: the airflow guiding conical surface (3.1) is a pyramid surface.
3. The clam shell device of the exhaust purifier capable of preventing the high temperature blowing corrosion of claim 1, wherein: the air flow guide conical surface (3.1) is a conical surface, and the included angle between the air flow guide conical surface (3.1) and the axis of the central hole of the flange (3) is 40-50 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120517081.8U CN214787634U (en) | 2021-03-11 | 2021-03-11 | Clam shell device of tail gas purifier capable of preventing high-temperature blowing corrosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120517081.8U CN214787634U (en) | 2021-03-11 | 2021-03-11 | Clam shell device of tail gas purifier capable of preventing high-temperature blowing corrosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214787634U true CN214787634U (en) | 2021-11-19 |
Family
ID=78665030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120517081.8U Active CN214787634U (en) | 2021-03-11 | 2021-03-11 | Clam shell device of tail gas purifier capable of preventing high-temperature blowing corrosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214787634U (en) |
-
2021
- 2021-03-11 CN CN202120517081.8U patent/CN214787634U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10036353B2 (en) | Exhaust gas recirculation apparatus and engine system including such exhaust gas recirculation apparatus | |
| CN102678268B (en) | The exhaust-gas treatment system of explosive motor | |
| CN113153507A (en) | Integrated exhaust manifold and engine with same | |
| CN214787634U (en) | Clam shell device of tail gas purifier capable of preventing high-temperature blowing corrosion | |
| EP2322787B1 (en) | Exhaust gas recirculation system | |
| JP2013194703A (en) | Venturi | |
| CN111350577A (en) | U-shaped after-treatment device of diesel engine | |
| CN201581967U (en) | Three-way catalytic purifier | |
| EP3276139B1 (en) | Pipe connection structure | |
| CN206816328U (en) | A kind of engine with supercharger ternary catalystic device structure | |
| CN212535802U (en) | Valve retainer reaches gasoline engine including it | |
| CN213775848U (en) | Novel noise reduction ring | |
| CN210948846U (en) | Shell structure of automobile particle catcher | |
| CN209724542U (en) | A kind of intercooler air outlet pipe | |
| CN112412583B (en) | Three way catalyst converter, engine exhaust assembly and car | |
| CN219932293U (en) | Tail gas aftertreatment's connection structure | |
| CN220769576U (en) | Exhaust pipe assembly for national six-fold card | |
| JP2000320328A (en) | Exhaust pipe device for automobile | |
| CN214741687U (en) | Gas turbine's inlet duct structure | |
| CN221591082U (en) | Valve structure for increasing exhaust gas recirculation rate | |
| CN211950642U (en) | Exhaust pipeline and engine | |
| CN215057698U (en) | Exhaust manifold connection structure | |
| CN212027913U (en) | U-shaped after-treatment device of diesel engine | |
| CN205663542U (en) | High frequency silencer structure | |
| CN214366373U (en) | Exhaust gas bypass pipeline and engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |