CN216691227U

CN216691227U - U-shaped structure catalytic silencer component

Info

Publication number: CN216691227U
Application number: CN202220178921.7U
Authority: CN
Inventors: 李俊勋; 陈智; 沈志荣; 李曼; 吴文
Original assignee: Puheim Automotive Technology Shanghai Co ltd
Current assignee: Puheim Automotive Technology Shanghai Co ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-06-07
Anticipated expiration: 2032-01-24

Abstract

A catalytic silencer component with a U-shaped structure comprises a catalytic converter assembly, a particle filter assembly, a rotary cavity assembly, a mixer and an SCR assembly, wherein the air outlet end of the catalytic converter assembly is connected with the air inlet end of the particle filter assembly through a V-shaped hoop or flange; therefore, the utility model has the advantages of simple structure, convenient operation, effective overcoming of the defects of the prior art, good discharge performance, strong anti-crystallization capability, better universality and applicability, compact design, small volume and smaller arrangement space.

Description

U-shaped structure catalytic silencer component

Technical Field

The utility model relates to the technical field of catalytic noise elimination of motor vehicles, in particular to a catalytic muffler component with a U-shaped structure.

Background

At present, with the continuous upgrading of emission regulations, the emission regulations are more and more strict and the current six-emission regulations in China are comprehensively implemented, the integration level and the structure of the catalytic muffler component for the motor vehicle are more and more complex, and the volume and the exhaust back pressure are gradually increased, so that the catalytic muffler component has the influence of unstable emission performance, easy crystallization, high development difficulty, long development period, high development cost, large requirement on the arrangement space of the whole vehicle, high fuel consumption of the whole vehicle and particularly obvious implementation on medium and heavy commercial vehicles.

Therefore, in view of the above-mentioned drawbacks, the present inventors have conducted extensive research and design to overcome the above-mentioned drawbacks by designing a U-shaped catalytic muffler component, which combines experience and results of related industries for many years.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a catalytic muffler component with a U-shaped structure, which has the advantages of simple structure, convenient operation, good emission performance, strong anti-crystallization capability, better universality and applicability, compact design, small volume and smaller arrangement space, and effectively overcomes the defects of the prior art.

In order to achieve the purpose, the utility model discloses a catalytic silencer component with a U-shaped structure, which comprises a catalytic converter assembly, a particle filter assembly, a rotary cavity assembly, a mixer and an SCR assembly, and is characterized in that:

the air outlet end of the catalytic converter assembly is connected with the air inlet end of the particle filter assembly through a V-shaped clamp or a flange, the air outlet end of the particle filter assembly is connected with one end of the rotary cavity assembly through the V-shaped clamp or the flange, the air inlet ends of the mixer and the SCR assembly are connected with the other end of the rotary cavity assembly through the V-shaped clamp or the flange, the rotary cavity assembly comprises a rotary cavity bottom plate and a rotary cavity inner shell, the rotary cavity bottom plate comprises two interfaces with the center lines coplanar, one of the interfaces is connected with the air outlet end of the DPF assembly, the other interface is connected with the air inlet ends of the mixer and the SCR assembly, and the rotary cavity inner shell surrounds the rotary cavity bottom plate to guide airflow to smoothly enter the air inlet ends of the mixer and the SCR assembly from the air outlet end of the particle filter assembly.

Wherein: the centers of the catalytic converter assembly and the particle filter assembly are arranged in the same spatial plane relative to the centers of the mixer and the SCR assembly and then connected with two ends of the rotary cavity assembly.

Wherein: the catalytic converter assembly comprises inlet end awl assembly, DOC encapsulation assembly and catalytic converter heat exchanger that separates, the inlet interface of inlet end awl assembly is that the side is admitted air or the axial structure of admitting air and is connected to the one end of DOC encapsulation assembly, the other end of DOC encapsulation assembly is connected to gyration chamber assembly, catalytic converter separates the cladding of heat exchanger assembly in DOC encapsulation assembly outer fringe.

Wherein: the catalytic converter heat shield assembly is of a circular ring structure consisting of two semicircular rings and comprises a heat shield at the outer edge and heat insulation cotton at the inner edge.

Wherein: the particle filter assembly comprises a DPF packaging assembly and a particle filter heat shield, the DPF packaging assembly is of a cylindrical structure, and the particle filter heat shield is wrapped on the outer edge of the DPF packaging assembly.

Wherein: the particle filter heat shield is of a circular ring structure consisting of two semicircular rings and comprises a heat shield at the outer edge and heat insulation cotton at the inner edge.

Wherein: the outer side of the inner shell of the rotary cavity is coated with a rotary cavity heat shield which comprises a heat shield at the outer edge and heat insulation cotton at the inner edge.

Wherein: the mixer and the SCR assembly comprise a mixer assembly, an SCR packaging assembly and an air outlet end cone assembly which are sequentially arranged, one end of the mixer assembly is connected to the rotary cavity assembly and consists of a mixer and a mixer welding cylinder body, one end of the SCR packaging assembly is connected to the other end of the mixer assembly, and the air inlet end of the air outlet end cone assembly is connected to the other end of the SCR packaging assembly.

Wherein: the mixer assembly and the SCR packaging assembly are provided with heat insulation cover assemblies at the outer edges, and each heat insulation cover assembly comprises a heat insulation cover at the outer edge and heat insulation cotton at the inner edge.

With the above structure, the catalytic muffler component of the U-shaped structure of the present invention has the following effects:

1. the U-shaped catalytic muffler component has good emission performance, and the U-shaped catalytic muffler component has good emission performance after market use and durability verification.

2. The anti-crystallization capacity is strong, the air flow distribution of the mixer is uniform, the evaporation and hydrolysis of urea are facilitated, the crystallization risk can be reduced, meanwhile, the internal space of the mixer is large, even if a small amount of crystals are generated in a short time, the performance of the mixer and a catalytic silencer component is not influenced, and the crystals can be easily removed when a vehicle is under high load, so that the anti-crystallization capacity of the catalytic silencer component is strong;

3. the modularized integrated degree is high, the engine with the displacement below 9L can be covered, only different carriers need to be replaced aiming at different engines, and the universality of parts is very high.

4. The development cycle is short, and the U-shaped catalytic muffler component can be rapidly applied in a matched manner when being developed for different vehicle types and different engine varieties due to the high universality of parts.

5. The structure is simple, the design is compact, the size is small, the arrangement space required on the whole vehicle is small, the back pressure is low, and great benefit is brought to the oil consumption of the whole vehicle.

The details of the present invention can be obtained from the following description and the attached drawings.

Drawings

Fig. 1 shows an assembly diagram of a U-shaped structure catalytic muffler component of the present invention.

FIG. 2 shows a schematic of the construction of the catalytic converter assembly of the present invention;

FIG. 3 shows a schematic of the construction of the particulate filter assembly of the present invention;

FIG. 4 shows a schematic structural view of a rotary chamber assembly of the present invention;

FIG. 5 shows a schematic of the mixer and SCR assembly of the present invention;

FIG. 6 shows a schematic view of the accessory bracket attachment of the present invention;

reference numerals:

the device comprises a catalytic converter assembly, a particle filter assembly, a 3-rotation cavity assembly structure, a 4-mixer and SCR assembly, a 5-auxiliary support accessory, a 6V-shaped hoop, a 1.1 air inlet end cone assembly, a 1.2DOC packaging assembly, a 1.3 catalytic converter heat shield, a 2.1DPF packaging assembly, a 2.2-particle filter heat shield, a 3.1-rotation cavity bottom plate, a 3.2-rotation cavity inner shell, a 3.3-rotation cavity heat shield, a 4.1-mixer assembly, a 4.2SCR packaging assembly, a 4.3 air outlet end cone assembly, a 4.4-heat shield assembly, a 5.1 post-treatment assembly mounting support, a 5.2-differential pressure pipe, a 5.3-sensor controller fixing support and a 5.4-sensor controller protective cover.

Detailed Description

Referring to fig. 1-6, a U-shaped construction catalytic muffler component of the present invention is shown.

As shown in fig. 1, the catalytic muffler component with U-shaped structure comprises a catalytic converter assembly (DOC assembly) 1, a particulate filter assembly (DPF assembly) 2, a rotary cavity assembly (diversion cavity assembly) 3, a mixer and SCR assembly 4 and an accessory bracket accessory 5, wherein the outlet end of the catalytic converter assembly 1 is connected to the inlet end of the particulate filter assembly 2, preferably by means of a V-clamp 6 or flange, the outlet end of the particle filter assembly 2 is connected to one end of a rotary chamber assembly 3, preferably by a V-clamp 6 or flange, the air inlet end of the mixer and SCR assembly 4 is connected to the other end of the rotary chamber assembly 3, preferably by a V-clamp or flange, the auxiliary bracket accessory 5 is arranged or welded on the catalytic converter assembly 1, the particle filter assembly 2, the rotary cavity assembly 3, the mixer and the SCR assembly 4; wherein preferably, the centers of the catalytic converter assembly 1 and the particulate filter assembly 2 are arranged in the same spatial plane with respect to the center of the mixer and SCR assembly 4 and then connected to both ends of the rotary chamber assembly 3.

Referring to fig. 2, the catalytic converter assembly 1(DOC assembly) is composed of an inlet end cone assembly 1.1, a DOC package assembly 1.2 and a catalytic converter heat shield 1.3, the air inlet interface of the air inlet end cone assembly 1.1 is a side air inlet or axial air inlet structure and is connected to one end of the DOC packaging assembly 1.2, the other end of the DOC packaging assembly 1.2 is connected to the rotary cavity assembly 3, the air inlet interface can be in flange connection or port forming pipe connection, the DOC packaging assembly 1.2 can be a straight plug or a diameter-reducing process support, flanges are welded at two ends of a DOC packaging barrel of the DOC packaging assembly 1.2 or the DOC packaging barrel is molded into a connecting structure, the catalytic converter heat shield assembly 1.3 is coated on the outer edge of the DOC packaging assembly 1.2 and is of a circular ring structure consisting of two semicircular rings, the thermal insulation device comprises a thermal insulation cover on the outer edge and thermal insulation cotton on the inner edge, and is used for preserving the heat of internal airflow and preventing scalding.

Referring to fig. 3, the particulate filter assembly 2(DPF assembly) is composed of a DPF encapsulation assembly 2.1 and a particulate filter heat shield 2.2, the DPF encapsulation assembly 2.1 may be a straight plug or a cylindrical structure formed by a diameter reduction process, flanges may be welded to both ends of a DPF encapsulation cylinder of the DPF encapsulation assembly 2.1 or an end part forming connection structure may be made, the particulate filter heat shield 2.2 is wrapped on the outer edge of the DPF encapsulation assembly 2.1 and is in a circular ring structure formed by two semicircular rings, and the particulate filter heat shield comprises the heat shield on the outer edge and heat insulation cotton on the inner edge, and is used for heat preservation and scald prevention of internal airflow.

Referring to fig. 4, the rotary cavity assembly 3 includes a rotary cavity bottom plate 3.1 and a rotary cavity inner shell 3.2, the rotary cavity bottom plate 3.1 includes two interfaces whose central lines are coplanar, one of the interfaces is connected to an air outlet end of the DPF assembly 2, and the other interface is connected to an air inlet end of the mixer and SCR assembly 4, and the connection form may be a flange or an end molding structure; gyration chamber inner shell 3.2 surrounds in gyration chamber bottom plate 3.1 and gets into the inlet end of blender and SCR assembly 4 from the end of giving vent to anger of particle filter assembly 2 smoothly in order to guide the air current, the outside cladding of gyration chamber inner shell 3.2 has gyration chamber heat shield 3.3, and it contains the heat shield of outer fringe and the heat insulating cotton of inner edge, and the effect keeps warm and scald preventing to gyration intracavity portion air current.

Referring to fig. 5, the mixer and SCR assembly 4 includes a mixer assembly 4.1, an SCR package assembly 4.2, and an outlet end cone assembly 4.3, which are sequentially disposed, one end of the mixer assembly 4.1 is connected to the rotary cavity assembly 3 and is composed of a mixer and a mixer welding cylinder, both ends of the mixer welding cylinder may be welded with flanges or made into an end forming connection structure, the connection form is matched with the rotary cavity assembly 3, one end of the SCR package assembly 4.2 is connected to the other end of the mixer assembly 4.1 and may be a straight plug or a diameter reduction process, both ends of the SCR package cylinder of the SCR package assembly 4.2 may be welded with flanges or made into an end forming connection structure, an inlet end of the outlet end cone assembly 4.3 is connected to the other end of the SCR package assembly 4.2, an outlet end thereof may be side outlet or axial outlet, an outlet port may be flanged connection or port forming pipe connection, the outer fringe of blender assembly 4.1 and SCR encapsulation assembly 4.2 is equipped with and separates heat exchanger assembly 4.4, separate heat exchanger assembly 4.4 can be the ring structure that two semicircle rings are constituteed, and it contains the heat exchanger that separates of outer fringe and the thermal-insulated cotton of inner edge, and the effect keeps warm and scald preventing to inside air current.

Referring to fig. 6, the accessory bracket attachment 5 may include an aftertreatment assembly mounting bracket 5.1, a differential pressure tube 5.2, a sensor controller mounting bracket 5.3, a sensor controller shield 5.4, and the like.

In concrete operation, when needing to carry out manual deashing to the DPF, dismantle the connection structure at particulate filter assembly 2(DPF assembly) both ends and fix the support at 2 external surfaces of particulate filter assembly and can take out particulate filter assembly 2, and then carry out deashing work to it, when needing manual clearance crystallization, dismantle connection structure and auxiliary support etc. between blender and SCR assembly 4 and gyration chamber bottom plate 3.1 and can dismantle blender and SCR assembly 4, can carry out manual clearance crystallization work to it afterwards, the operating time is greatly saved, and the maintenance operating efficiency is improved.

It should be apparent that the foregoing description and illustrations are by way of example only and are not intended to limit the present disclosure, application or uses. While embodiments have been described in the embodiments and depicted in the drawings, the present invention is not limited to the particular examples illustrated by the drawings and described in the embodiments as the best mode presently contemplated for carrying out the teachings of the present invention, and the scope of the present invention will include any embodiments falling within the foregoing description and the appended claims.

Claims

1. The utility model provides a U type structure catalysis silencer part, includes catalytic converter assembly, particle filter assembly, gyration chamber assembly and blender and SCR assembly, its characterized in that:

the end of giving vent to anger of catalytic converter assembly is connected through V type clamp or flange with the inlet end of particulate filter assembly, V type clamp or flange joint are passed through with the one end of gyration chamber assembly to the end of giving vent to anger of particulate filter assembly, the inlet end of blender and SCR assembly is connected through V type clamp or flange joint with the other end of gyration chamber assembly, gyration chamber assembly contains gyration chamber bottom plate and gyration chamber inner shell, gyration chamber bottom plate contains the coplanar interface of two central lines, and the end of giving vent to anger of one of them interface connection DPF assembly, the inlet end of another interface connection blender and SCR assembly, gyration chamber inner shell surrounds in gyration chamber bottom plate and gets into the inlet end of blender and SCR assembly from the end of giving vent to anger of particulate filter assembly smoothly with the guide air current.

2. The U-shaped structural catalytic muffler component of claim 1, wherein: the centers of the catalytic converter assembly and the particle filter assembly are arranged in the same spatial plane relative to the centers of the mixer and the SCR assembly and then connected with two ends of the rotary cavity assembly.

3. The U-shaped structural catalytic muffler component of claim 1, wherein: catalytic converter assembly is become by inlet end awl assembly, DOC encapsulation assembly and catalytic converter heat exchanger that separates, the inlet interface of inlet end awl assembly is that the side is admitted air or the axial inlet structure and is connected to the one end of DOC encapsulation assembly, the other end of DOC encapsulation assembly is connected to gyration chamber assembly, catalytic converter separates the cladding of heat exchanger assembly in DOC encapsulation assembly outer fringe.

4. The U-shaped structural catalytic muffler component of claim 3, wherein: the catalytic converter heat shield assembly is of a circular ring structure consisting of two semicircular rings and comprises a heat shield at the outer edge and heat insulation cotton at the inner edge.

5. The U-shaped structural catalytic muffler component of claim 1, wherein: the particle filter assembly comprises a DPF packaging assembly and a particle filter heat shield, the DPF packaging assembly is of a cylindrical structure, and the particle filter heat shield is wrapped on the outer edge of the DPF packaging assembly.

6. The U-shaped structural catalytic muffler component of claim 5, wherein: the particle filter heat shield is of a circular ring structure consisting of two semicircular rings and comprises a heat shield at the outer edge and heat insulation cotton at the inner edge.

7. The U-shaped structural catalytic muffler component of claim 1, wherein: the outer side of the inner shell of the rotary cavity is coated with a rotary cavity heat shield which comprises a heat shield at the outer edge and heat insulation cotton at the inner edge.

8. The U-shaped structural catalytic muffler component of claim 1, wherein: the mixer and the SCR assembly comprise a mixer assembly, an SCR packaging assembly and an air outlet end cone assembly which are sequentially arranged, one end of the mixer assembly is connected to the rotary cavity assembly and consists of a mixer and a mixer welding cylinder body, one end of the SCR packaging assembly is connected to the other end of the mixer assembly, and the air inlet end of the air outlet end cone assembly is connected to the other end of the SCR packaging assembly.

9. The U-shaped structural catalytic muffler component of claim 8, wherein: the mixer assembly and the SCR packaging assembly are provided with heat insulation cover assemblies at the outer edges, and each heat insulation cover assembly comprises a heat insulation cover at the outer edge and heat insulation cotton at the inner edge.