CN219197441U

CN219197441U - Packaging structure of automobile three-way catalyst

Info

Publication number: CN219197441U
Application number: CN202320732363.9U
Authority: CN
Inventors: 余勇; 戎永波; 胡晓; 周巧燕
Original assignee: Nanjing Kaite Environmental Protection Technology Co ltd
Current assignee: Nanjing Kaite Environmental Protection Technology Co ltd
Priority date: 2023-04-06
Filing date: 2023-04-06
Publication date: 2023-06-16
Anticipated expiration: 2033-04-06

Abstract

The utility model discloses a packaging structure of an automobile three-way catalyst, which comprises a metal shell, wherein one end of the metal shell is connected with an air inlet end, the center of the air inlet end is connected with a guide pipe, the outer wall of one end of the guide pipe is connected with a connecting flange, the inner side of the connecting flange is provided with a mounting hole in a penetrating way, the other end of the metal shell is connected with an exhaust end, the center of the exhaust end is connected with an air outlet pipe, the outer wall of one end of the air outlet pipe is connected with a butt flange, and an insulating interlayer sleeve is arranged in the metal shell.

Description

Packaging structure of automobile three-way catalyst

Technical Field

The utility model relates to the technical field of packaging of three-way catalysts, in particular to a packaging structure of an automobile three-way catalyst.

Background

The automobile three-way catalyst is the most important external purifying device installed in the automobile exhaust system, and can convert harmful gases such as CO, HC and NOx exhausted by automobile exhaust into harmless carbon dioxide, water and nitrogen through oxidation and reduction, and the inside is a fixed structure, so that the parts of the three-way catalyst are not convenient to damage and replace, and the packaging structure of the automobile three-way catalyst is provided.

However, the inside of the existing catalyst is a fixed structure, so that the parts of the catalyst are not damaged and replaced conveniently, the ventilation end parts on two sides of the metal shell are not convenient to change the size of the catalyst, and the density of the liner packaging body cannot be controlled dynamically.

In view of the above, the present utility model provides an encapsulation structure of an automotive three-way catalyst, which has reasonable structural design, and can change the size of the automotive three-way catalyst conveniently by virtue of a detachable skirt ventilation structure arranged at two ends of a metal shell, so as to achieve dynamic control of the density of a gasket encapsulation body, reduce damage to a gasket of the gasket encapsulation body, and prolong the service life of the gasket.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides a packaging structure of an automobile three-way catalyst.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a packaging structure of car three way catalyst converter, includes metal casing, metal casing's one end is connected with the inlet end, the center department of inlet end is connected with the pipe, the outer wall connection of pipe one end has flange, the flange inboard runs through and is provided with the mounting hole, metal casing's the other end is connected with the exhaust end, the center department of exhaust end is connected with the outlet duct, the outer wall connection of outlet duct one end has the butt flange, metal casing's inside is provided with adiabatic intermediate layer cover, adiabatic intermediate layer cover's inner wall is connected with the packing liner, the inner wall of packing liner is connected with the catalyst carrier, the top layer of catalyst carrier is provided with the active layer, the both ends of adiabatic intermediate layer cover inner wall are connected with ceramic carrier, ceramic carrier inner wall connection has the filter screen, the top layer of filter screen is provided with the catalyst coating.

As a further description of the above technical solution:

one end of the metal shell is in threaded connection with the air inlet end, the metal shell is of a tubular structure, the air inlet end is of a conical skirt structure, and the center of the air inlet end is spliced with the guide pipe.

As a further description of the above technical solution:

the outer wall of pipe one end and flange threaded connection, flange shape is diamond-shaped structure, and four ends are the arc, flange's inboard is fixed and is provided with the mounting hole, the quantity of mounting hole is two sets of.

As a further description of the above technical solution:

the other end of the metal shell is in threaded connection with the exhaust end, the connection termination position of the exhaust end and the air inlet end is positioned on the outer side of the ceramic carrier, and the center of the exhaust end is spliced with the air outlet pipe.

As a further description of the above technical solution:

the outer wall of outlet duct one end is connected with the butt flange screw thread, the inside and the heat insulation intermediate layer cover joint of metal casing, the metal casing overlaps in the outer wall of heat insulation intermediate layer cover.

As a further description of the above technical solution:

the inner wall of the heat insulation interlayer sleeve is fixedly connected with the filling liner, and the inner wall of the filling liner is fixedly connected with the catalyst carrier.

As a further description of the above technical solution:

the surface layer of the catalyst carrier is fixedly provided with an active layer, and two ends of the inner wall of the heat insulation interlayer sleeve are clamped with the ceramic carrier.

As a further description of the above technical solution:

the inner wall of the ceramic carrier is in threaded connection with the filter screen, and the surface layer of the filter screen is bonded with the catalyst coating.

The utility model has the following beneficial effects:

through the improvement to the packaging structure of an automobile three-way catalyst, the automobile three-way catalyst has reasonable structural design, can conveniently change the size through the detachable skirt ventilation structure arranged at two ends of the metal shell of the automobile three-way catalyst, so as to achieve the dynamic control of the density of a gasket packaging body, reduce the damage to the gasket of the automobile three-way catalyst, and further prolong the service life of the gasket, thereby effectively solving the problems and the defects of the prior device.

Drawings

Fig. 1 is an external view of a packaging structure of an automotive three-way catalyst according to the present utility model;

FIG. 2 is a schematic diagram of a heat insulating interlayer sleeve of a packaging structure of an automotive three-way catalyst according to the present utility model;

fig. 3 is a schematic diagram of the internal structure of a ceramic carrier of the packaging structure of the three-way catalyst for an automobile.

Legend description:

1. a metal housing; 2. an air inlet end; 3. a conduit; 4. a connecting flange; 5. a mounting hole; 6. an exhaust end; 7. an air outlet pipe; 8. a butt flange; 9. a thermally insulating interlayer sleeve; 10. filling a gasket; 11. a catalyst carrier; 12. an active layer; 13. a ceramic carrier; 14. a filter screen; 15. and (3) a catalyst coating.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be constructed and operated in the specific direction, and thus should not be construed as limiting the present utility model; the terms "first," "second," "third," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "coupled," and the like are to be construed broadly, and may be fixedly coupled, detachably coupled, or integrally coupled, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1-3, one embodiment provided by the present utility model is: the utility model provides a packaging structure of car three way catalyst ware, including metal casing 1, the one end of metal casing 1 is connected with inlet end 2, inlet end 2's center department is connected with pipe 3, the outer wall connection of pipe 3 one end has flange 4, flange 4 inboard runs through and is provided with mounting hole 5, metal casing 1's the other end is connected with exhaust end 6, exhaust end 6's center department is connected with outlet duct 7, the outer wall connection of outlet duct 7 one end has docking flange 8, metal casing 1's inside is provided with adiabatic intermediate layer cover 9, adiabatic intermediate layer cover 9's inner wall is connected with packing liner 10, packing liner 10's inner wall is connected with catalyst carrier 11, catalyst carrier 11's top layer is provided with active layer 12, ceramic carrier 13 is connected with at the both ends of adiabatic intermediate layer cover 9 inner wall, ceramic carrier 13 inner wall is connected with filter screen 14, filter screen 14's top layer is provided with catalyst coating 15.

Specifically, as shown in fig. 1, one end of a metal shell 1 is in threaded connection with an air inlet end 2, the metal shell 1 is of a tubular structure, the air inlet end 2 is of a tapered skirt structure, and the center of the air inlet end 2 is spliced with a guide pipe 3.

Specifically, as shown in fig. 1, the outer wall of one end of the conduit 3 is in threaded connection with the connecting flange 4, the shape of the connecting flange 4 is in a diamond structure, four ends are arc-shaped, the inner side of the connecting flange 4 is fixedly provided with mounting holes 5, and the number of the mounting holes 5 is two.

Specifically, as shown in fig. 1, the other end of the metal shell 1 is in threaded connection with the exhaust end 6, the connection termination position of the exhaust end 6 and the air inlet end 2 is positioned at the outer side of the ceramic carrier 13, and the center of the exhaust end 6 is spliced with the air outlet pipe 7.

Specifically, as shown in fig. 1 and fig. 2, the outer wall of one end of the air outlet pipe 7 is in threaded connection with the butt flange 8, the inside of the metal shell 1 is clamped with the heat insulation interlayer sleeve 9, and the metal shell 1 is sleeved on the outer wall of the heat insulation interlayer sleeve 9.

Specifically, as shown in fig. 2, the inner wall of the heat insulating interlayer sleeve 9 is fixedly connected with the packing 10, and the inner wall of the packing 10 is fixedly connected with the catalyst carrier 11.

Specifically, as shown in fig. 2, an active layer 12 is fixedly arranged on the surface layer of the catalyst carrier 11, and two ends of the inner wall of the heat insulation interlayer sleeve 9 are clamped with a ceramic carrier 13.

Specifically, as shown in fig. 2 and 3, the inner wall of the ceramic carrier 13 is in threaded connection with the filter screen 14, and the surface layer of the filter screen 14 is bonded with the catalyst coating 15.

Working principle: when the packaging structure of the automobile three-way catalyst is used, firstly, the connecting flange 4 at one end of the air inlet end 2 can be fixedly installed with an exhaust pipe at the tail of an automobile through the mounting holes 5, the air inlet end 2 and the air exhaust end 6 which are arranged at two ends of the metal shell 1 are of detachable structures, the sizes of the air inlet end 2 and the air exhaust end 6 can be conveniently changed, so that dynamic control of the density of a gasket packaging body is achieved, the cylindrical heat insulation interlayer sleeve 9 which is additionally arranged in the metal shell 1 can eliminate the area where engine exhaust and the metal shell 1 are in direct contact, the existence of a heat ring is avoided, the heat harmful influence on surrounding parts is eliminated, the area which is in contact with gas can be increased through the filling gasket 10 and the catalyst carrier 11, the reaction degree is increased, and in addition, the surface of the catalyst carrier 11 is coated with a layer of loose active layer 12, and the surface of the active surface of the automobile catalyst is greatly increased and the oxygen storage capacity of the automobile catalyst is greatly increased due to the fact that the surface is rough.

Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a packaging structure of car three way catalyst converter, includes metal casing (1), its characterized in that: the utility model discloses a metal casing, including metal casing (1), flange (4), filter screen (14), heat-insulating interlayer cover (9) are provided with in the inside of metal casing (1), the one end of metal casing (1) is connected with inlet end (2), the center department of inlet end (2) is connected with pipe (3), the outer wall connection of pipe (3) one end has flange (4), the inboard mounting hole (5) that runs through of flange (4), the other end of metal casing (1) is connected with exhaust end (6), the center department of exhaust end (6) is connected with outlet duct (7), the outer wall connection of outlet duct (7) one end has flange (8), the inside of metal casing (1) is provided with heat-insulating interlayer cover (9), the inner wall connection of heat-insulating interlayer cover (9) has packing liner (10), the inner wall connection of packing liner (10) has catalyst carrier (11), the top layer (12) of catalyst carrier (11), the both ends of heat-insulating interlayer cover (9) inner wall are connected with ceramic carrier (13), filter screen (14) inner wall connection, top layer (14) is provided with catalyst coating (15).

2. The packaging structure of the three-way catalyst for the automobile according to claim 1, wherein: one end of the metal shell (1) is in threaded connection with the air inlet end (2), the metal shell (1) is of a tubular structure, the air inlet end (2) is of a conical skirt structure, and the center of the air inlet end (2) is spliced with the guide pipe (3).

3. The packaging structure of the three-way catalyst for the automobile according to claim 1, wherein: the outer wall of pipe (3) one end and flange (4) threaded connection, flange (4) shape is diamond-shaped structure, and four ends are the arc, the inboard of flange (4) is fixed and is provided with mounting hole (5), the quantity of mounting hole (5) is two sets of.

4. The packaging structure of the three-way catalyst for the automobile according to claim 1, wherein: the other end of the metal shell (1) is in threaded connection with the exhaust end (6), the connection termination position of the exhaust end (6) and the air inlet end (2) is positioned at the outer side of the ceramic carrier (13), and the center of the exhaust end (6) is spliced with the air outlet pipe (7).

5. The packaging structure of the three-way catalyst for the automobile according to claim 1, wherein: the outer wall of one end of the air outlet pipe (7) is in threaded connection with the butt flange (8), the inside of the metal shell (1) is clamped with the heat insulation interlayer sleeve (9), and the metal shell (1) is sleeved on the outer wall of the heat insulation interlayer sleeve (9).

6. The packaging structure of the three-way catalyst for the automobile according to claim 1, wherein: the inner wall of the heat insulation interlayer sleeve (9) is fixedly connected with the filling liner (10), and the inner wall of the filling liner (10) is fixedly connected with the catalyst carrier (11).

7. The packaging structure of the three-way catalyst for the automobile according to claim 1, wherein: the surface layer of the catalyst carrier (11) is fixedly provided with an active layer (12), and two ends of the inner wall of the heat insulation interlayer sleeve (9) are clamped with the ceramic carrier (13).

8. The packaging structure of the three-way catalyst for the automobile according to claim 1, wherein: the inner wall of the ceramic carrier (13) is in threaded connection with the filter screen (14), and the surface layer of the filter screen (14) is adhered with the catalyst coating (15).