CN211144612U

CN211144612U - High leakproofness SCR exhaust catalytic converter suitable for internal-combustion engine

Info

Publication number: CN211144612U
Application number: CN201922022941.6U
Authority: CN
Inventors: 戎永波; 郭隽; 余勇; 刘世阳; 陈基林; 随伟; 陈培华; 孙平
Original assignee: Ningbo Kesen Exhaust Gas Cleaner Manufacturing Co ltd
Current assignee: Ningbo Kesen Exhaust Gas Cleaner Manufacturing Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-07-31
Anticipated expiration: 2029-11-21

Abstract

The utility model discloses a high leakproofness SCR exhaust catalytic converter suitable for internal-combustion engine, including clarifier barrel subassembly, the end cover, the clam shell pipe, the first flange, the mounting hole, first seal groove, the second seal groove and the third seal groove, the end cover is welded to clarifier barrel subassembly one end, the clam shell pipe is welded to the one end of clarifier barrel subassembly far away from the end cover, and the clam shell pipe is five-way pipe setting, the exhaust end of clam shell pipe and clarifier barrel subassembly intercommunication, the first flange is fixed with to four inlet ends of clam shell pipe, the mounting hole has been seted up to the one side symmetry that the first flange kept away from the clam shell pipe, the first seal groove has been seted up to one side that the first flange kept away from the clam shell pipe, and the first seal groove is closed along the periphery of first flange, the first flange is close to one side symmetry of first seal groove and sets up the second seal groove that cooperates with the mounting hole, this high leakproofness SCR exhaust catalytic converter suitable for internal-combustion engine is higher to catalytic converter, the leakage of tail gas is reduced, and the environmental protection effect is improved.

Description

High leakproofness SCR exhaust catalytic converter suitable for internal-combustion engine

Technical Field

The utility model relates to a catalytic converter technical field specifically is a high leakproofness SCR exhaust catalytic converter suitable for internal-combustion engine.

Background

In a large engine, exhaust purification by an exhaust catalytic converter, which is the most important external purification device installed in an automobile exhaust system, is increasingly used, and it can convert harmful gases such as CO, HC, and NOx emitted from automobile exhaust into harmless carbon dioxide, water, and nitrogen by oxidation and reduction, and when the existing exhaust catalyst is used, the sealing property of the inlet end of the catalyst is poor, so that untreated exhaust is easily leaked, causing environmental pollution. To this end, we propose an SCR exhaust catalytic converter with high sealing properties suitable for internal combustion engines.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high leakproofness SCR exhaust catalytic converter suitable for internal-combustion engine to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a high-tightness SCR exhaust catalytic converter suitable for an internal combustion engine comprises a purifier cylinder assembly, an end cover, a clam shell pipe, a first flange, a mounting hole, a first sealing groove, a second sealing groove and a third sealing groove, wherein the end cover is welded at one end of the purifier cylinder assembly, the clam shell pipe is welded at the end, far away from the end cover, of the purifier cylinder assembly, the clam shell pipe is arranged in a five-way pipe manner, the exhaust end of the clam shell pipe is communicated with the purifier cylinder assembly, the first flange is fixed at four air inlet ends of the clam shell pipe, the mounting hole is symmetrically formed in one side, far away from the clam shell pipe, of the first flange, the first sealing groove is closed along the periphery of the first flange, the second sealing groove matched with the mounting hole is symmetrically formed in one side, close to the first sealing groove, of the first flange, and the second sealing groove is located outside the, the first sealing groove is communicated with the second sealing groove, third sealing grooves are formed in one side, close to the first sealing groove, of the first flange at equal intervals, and the four third sealing grooves in the first flange are located on the outer sides of the four air inlet ends of the clam shell pipe respectively.

Preferably, the first flange is provided with positioning grooves at equal intervals on one side close to the first sealing groove.

Preferably, the clam shell pipe comprises an upper clam shell and a lower clam shell, and the upper clam shell and the lower clam shell are fixedly connected through welding.

Preferably, an oxygen sensor seat is fixed at one end of the clam shell of the upper piece.

Preferably, a second flange is fixed at one end, far away from the purifier cylinder assembly, of the end cover.

Preferably, the outer side of the purifier cylinder assembly and one side of the first flange close to the clam shell pipe are both fixed with a support at equal intervals.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses pass through the exhaust end of first flange mounting with the internal-combustion engine with the clam shell pipe when using, make four inlet ends of clam shell pipe be connected with four exhaust ends of internal-combustion engine, and first flange one side has been seted up first seal groove and second seal groove, enclose first flange and whole, and keep apart the mounting hole, and keep apart the clam shell pipe through the third seal groove, make first seal groove, form a closed space between second seal groove and the third seal groove, and the exhaust end of internal-combustion engine also set up with first seal groove, the seal groove of second seal groove and third seal groove relativity, when the installation, will seal up with first seal groove and second seal groove shape matched with and place in first seal groove and second seal groove, again place shape and third seal groove matched with seal up with and seal up with in the third seal groove, then again with first seal groove, The space between the second sealing groove and the third sealing groove is fully coated with sealing grease, then the first flange is fixed with the internal combustion engine, the clam shell pipe and the internal combustion engine are sealed for the first time through the sealing gasket in the third sealing groove, when the internal combustion engine works, the sealing grease is melted by the emitted heat, the first sealing groove is fully distributed in the space between the second sealing groove and the third sealing groove, liquid sealing is formed, the clam shell pipe and the internal combustion engine are sealed for the second time, the clam shell pipe and the internal combustion engine are sealed for the third time through the sealing gaskets in the first sealing groove and the second sealing groove, and therefore the high sealing effect is achieved, the device is high in sealing performance of the catalytic converter, leakage of tail gas is reduced, and the environment-friendly effect is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic side view of the present invention;

fig. 3 is a schematic view of a first flange structure of the present invention.

In the figure: 1. a purifier cartridge assembly; 2. an end cap; 3. a clam shell tube; 4. a first flange; 5. mounting holes; 6. a first seal groove; 7. a second seal groove; 8. a third seal groove; 9. a mussel shell of superior lamella; 10. a lower mussel shell; 11. an oxygen sensor seat; 12. a second flange; 13. a support; 14. and (6) positioning a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a high-tightness SCR exhaust catalytic converter suitable for an internal combustion engine comprises a purifier cylinder assembly 1, an end cover 2, a clam shell pipe 3, a first flange 4, a mounting hole 5, a first sealing groove 6, a second sealing groove 7 and a third sealing groove 8, wherein the end cover 2 is welded at one end of the purifier cylinder assembly 1, the clam shell pipe 3 is welded at one end, far away from the end cover 2, of the purifier cylinder assembly 1, the clam shell pipe 3 is arranged in a five-way pipe manner, the exhaust end of the clam shell pipe 3 is communicated with the purifier cylinder assembly 1, the first flange 4 is fixed at four air inlet ends of the clam shell pipe 3, the mounting hole 5 is symmetrically arranged at one side, far away from the clam shell pipe 3, of the first flange 4, the first sealing groove 6 is arranged at one side, far away from the clam shell pipe 3, the first sealing groove 6 is closed along the periphery of the first flange 4, the second sealing groove 7 matched with the mounting hole 5 is symmetrically arranged at one side, close to the first sealing groove 6, of the first, the second sealing groove 7 is positioned at the outer side of the mounting hole 5, the first sealing groove 6 is communicated with the second sealing groove 7, the third sealing groove 8 is equidistantly arranged at one side of the first flange 4 close to the first sealing groove 6, the four third sealing grooves 8 on the first flange 4 are respectively positioned at the outer sides of the four air inlet ends of the clam shell pipe 3, when the clam shell pipe 3 is used, the clam shell pipe 3 is mounted with the exhaust end of an internal combustion engine through the first flange 4, the four air inlet ends of the clam shell pipe 3 are connected with the four exhaust ends of the internal combustion engine, the first sealing groove 6 and the second sealing groove 7 are arranged at one side of the first flange 4, the first flange 4 and the whole are enclosed, the mounting hole 5 is isolated, the clam shell pipe 3 is isolated through the third sealing grooves 8, a closed space is formed among the first sealing groove 6, the second sealing groove 7 and the third sealing groove 8, and the exhaust end of the internal combustion engine is also provided with a sealing groove 6, a sealing groove 8, When the sealing device is installed, sealing gaskets matched with the first sealing groove 6 and the second sealing groove 7 in shape are placed in the first sealing groove 6 and the second sealing groove 7, then sealing gaskets matched with the third sealing groove 8 in shape are placed in the third sealing groove 8, then spaces among the first sealing groove 6, the second sealing groove 7 and the third sealing groove 8 are fully coated with sealing grease, then the first flange 4 is fixed with the internal combustion engine, the clam shell pipe 3 and the internal combustion engine are sealed for the first time through the sealing gaskets in the third sealing groove 8, when the internal combustion engine works, the sealing grease is melted by emitted heat, so that the sealing grease is fully distributed in the spaces among the first sealing groove 6, the second sealing groove 7 and the third sealing groove 8 to form liquid sealing, and the second time of sealing is carried out between the clam shell pipe 3 and the internal combustion engine, the clam shell pipe 3 and the internal combustion engine are sealed for the third time through the sealing gaskets in the first sealing groove 6 and the second sealing groove 7, and therefore a high sealing effect is achieved.

Positioning grooves 14 are formed in one side, close to the first sealing groove 6, of the first flange 4 at equal intervals, and protrusions matched with the positioning grooves are arranged at the exhaust end of the internal combustion engine and clamped with the positioning grooves, so that the mounting holes 5 can be aligned with bolt holes of the internal combustion engine, and people can mount the internal combustion engine conveniently.

The clam shell pipe 3 comprises an upper piece clam shell 9 and a lower piece clam shell 10, and the upper piece clam shell 9 and the lower piece clam shell 10 are fixedly connected through welding, so that the production of the clam shell pipe 3 is facilitated.

An oxygen sensor seat 11 is fixed at one end of the upper mussel shell 9, so that the salt content of the tail gas can be conveniently detected.

And a second flange 12 is fixed at one end of the end cover 2 far away from the purifier cylinder component 1, so that the end cover 2 and the exhaust pipeline can be conveniently installed.

The outer side of the purifier cylinder component 1 and one side, close to the clam shell pipe 3, of the first flange 4 are fixed with the support 13 at equal intervals, and therefore the purifier cylinder component 1 can be conveniently installed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high leakproofness SCR exhaust catalytic converter suitable for internal-combustion engine, includes clarifier barrel subassembly (1), end cover (2), clamshell pipe (3), first flange (4), mounting hole (5), first seal groove (6), second seal groove (7) and third seal groove (8), its characterized in that: the end cover (2) is welded at one end of the purifier cylinder component (1), the clam shell tube (3) is welded at one end, far away from the end cover (2), of the purifier cylinder component (1), the clam shell tube (3) is arranged in a five-way pipe, the exhaust end of the clam shell tube (3) is communicated with the purifier cylinder component (1), first flanges (4) are fixed at four air inlet ends of the clam shell tube (3), mounting holes (5) are symmetrically formed in one sides, far away from the clam shell tube (3), of the first flanges (4), first sealing grooves (6) are formed in one sides, far away from the clam shell tube (3), of the first flanges (4), the first sealing grooves (6) are closed along the periphery of the first flanges (4), second sealing grooves (7) matched with the mounting holes (5) are symmetrically formed in one sides, close to the first sealing grooves (6), of the first flanges (4), and the second sealing grooves (7) are located outside the mounting holes (5), the first sealing groove (6) is communicated with the second sealing groove (7), a third sealing groove (8) is formed in one side, close to the first sealing groove (6), of the first flange (4) at equal intervals, and the four third sealing grooves (8) in the first flange (4) are located on the outer sides of the four air inlet ends of the clam shell and tube (3) respectively.

2. The SCR exhaust catalytic converter with high sealing performance suitable for an internal combustion engine according to claim 1, wherein: positioning grooves (14) are formed in one side, close to the first sealing groove (6), of the first flange (4) at equal intervals.

3. The SCR exhaust catalytic converter with high sealing performance suitable for an internal combustion engine according to claim 1, wherein: the clam shell pipe (3) comprises an upper clam shell (9) and a lower clam shell (10), and the upper clam shell (9) and the lower clam shell (10) are fixedly connected through welding.

4. A high-sealability SCR exhaust gas catalytic converter suitable for an internal combustion engine according to claim 3, wherein: an oxygen sensor seat (11) is fixed at one end of the upper mussel shell (9).

5. The SCR exhaust catalytic converter with high sealing performance suitable for an internal combustion engine according to claim 1, wherein: and a second flange (12) is fixed at one end of the end cover (2) far away from the purifier cylinder component (1).

6. The SCR exhaust catalytic converter with high sealing performance suitable for an internal combustion engine according to claim 1, wherein: the purifier cylinder component is characterized in that a support (13) is fixed on the outer side of the purifier cylinder component (1) and one side, close to the clam shell pipe (3), of the first flange (4) at equal intervals.