Automobile exhaust purification treatment device

Abstract

The utility model belongs to the technical field of tail gas treatment equipment, and particularly relates to an automobile tail gas purification treatment device which comprises a DOC assembly body used in an automobile tail gas purification system, the DOC assembly body comprises a gas inlet pipe and a pipe body, a flow dividing assembly is arranged on one side in the gas inlet pipe and comprises a flow dividing frame designed in a three-fork star shape, and the flow dividing frame is connected with the DOC assembly body. A flow dividing frame is arranged in the pipe body, a flow dividing groove which is designed from outside to inside and is in a closing-up shape is formed in the flow dividing frame, an anti-scour assembly is arranged at the connecting position of the air inlet pipe and the pipe body, a ceramic carrier structure is arranged in the pipe body, and a connecting assembly is arranged on the outer side of the pipe body. The utility model has the advantages of reasonable design, simple structure and convenience in processing, reduces the impact of tail gas on equipment parts, reduces the damage, relatively prolongs the service life, improves the use functionality, and meets the use requirements.

Description

Technical Field

[0001] This utility model belongs to the technical field of exhaust gas treatment equipment, and in particular relates to an automobile exhaust gas purification and treatment device. Background Technology

[0002] The main functions of the exhaust gas treatment (DOC) component include oxidizing HC, CO, and SOF in diesel engine exhaust, as well as oxidizing NO in the exhaust to NO2. Specifically, the DOC (Oxidation Catalyst) adsorbs and oxidizes carbon monoxide (CO) and hydrocarbons (HC) in the exhaust gas through a platinum-based metal catalyst on its honeycomb carrier surface, converting them into carbon dioxide (CO2) and water (H2O), thereby reducing the content of harmful gases in the exhaust. In addition, the DOC can also oxidize nitric oxide (NO) to nitrogen dioxide (NO2), which then acts as a dry soot oxidizer in the subsequent particulate filter (DPF), forming a continuous regeneration process. The working principle of the DOC is based on its internal platinum-based metal catalyst. These metals can adsorb oxygen and incompletely combusted combustible gases in the exhaust gas and promote the oxidation reaction at appropriate temperatures.

[0003] Currently, the DOC (Device Oxide Container) is the first component to come into contact with exhaust gas, and its treatment process and effect are particularly important. In existing technologies, one side of the DOC is connected to the exhaust manifold to ensure effective entry of exhaust gas. However, the exhaust gas entering the DOC has a certain impact, and after prolonged use, the honeycomb carrier in the DOC is prone to damage, resulting in a limited service life and failing to meet usage requirements. At the same time, direct contact between exhaust gas and the honeycomb carrier increases the clogging process, and even existing conventional backwashing methods cannot effectively clean it, leading to poor functionality. Utility Model Content

[0004] This utility model addresses the technical problems existing in the use of the aforementioned DOC components by proposing a vehicle exhaust purification treatment device that is reasonably designed, simple in structure, easy to process, reduces the impact of exhaust gas on equipment components, lowers the possibility of equipment damage, relatively extends its service life, optimizes the exhaust gas flow process, reduces blockage, facilitates subsequent cleaning, improves the functionality of the device, and meets the usage requirements.

[0005] To achieve the above objectives, the present invention provides a vehicle exhaust purification device, comprising a DOC component body for use in a vehicle exhaust purification system. The DOC component includes an intake pipe and a pipe body. A flow divider is provided on one side of the intake pipe. The flow divider includes a flow divider frame with a trident-shaped design. A flow divider groove with a tapering design from the outside to the inside is provided within the flow divider frame. An anti-impact component is provided at the connection between the intake pipe and the pipe body. A ceramic carrier structure is provided inside the pipe body. A connecting component is provided on the outside of the pipe body.

[0006] Preferably, the anti-impact component includes a mounting tube, a support ring is provided inside the mounting tube, and anti-impact blades are provided between the mounting tube and the support ring. The anti-impact blades are arranged in an inclined manner, with the outer half of the blades being arc-shaped and the inner half being obtuse-angled.

[0007] Preferably, the ceramic carrier structure has multiple vent holes, which are designed in a key shape and are arranged in an alternating pattern in adjacent rows.

[0008] Preferably, the connecting assembly includes a sleeve with a Z-shaped cross-section, and a fastening plate with an L-shaped cross-section is provided on the outside of one side of the sleeve. The long side of the fastening plate is designed to taper outward from the corner, and arc-shaped slots are provided on both the inner and outer sides of the long side of the fastening plate.

[0009] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0010] 1. This utility model provides an automotive exhaust gas purification and treatment device. Utilizing a diversion component, it can divert incoming exhaust gas to ensure smooth transport and buffer the incoming exhaust gas flow, reducing the possibility of damage to internal equipment and ensuring functionality. The anti-impact component buffers the incoming exhaust gas, preventing it from directly impacting the ceramic carrier structure and also provides pressure relief, reducing the possibility of damage and extending its service life. The connecting component facilitates connection between the device and other components, improving connection stability and ensuring performance. This device is rationally designed, simple in structure, easy to manufacture, and reduces the impact of exhaust gas on equipment components, minimizing damage and extending service life. It also optimizes the exhaust gas flow, reduces blockages, facilitates subsequent cleaning, improves device functionality, and meets user needs. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of a vehicle exhaust purification and treatment device.

[0013] Figure 2 An exploded view of the structure of an automobile exhaust purification device;

[0014] Figure 3 A schematic diagram of part of the internal structure of the splitter component;

[0015] Figure 4 for Figure 2 A magnified view of a portion of the structure at point A in the middle;

[0016] Figure 5 A top view of part of the internal structure of the shock-resistant component;

[0017] Figure 6 for Figure 2 A magnified view of the local structure at point B;

[0018] Figure 7 This is a structural diagram of the connecting components;

[0019] Figure 8 for Figure 7 A magnified view of the partial structure at point C;

[0020] In the above figures, 1 is the intake pipe; 2 is the pipe body; 3 is the flow divider; 31 is the flow divider groove; 4 is the anti-impact component; 41 is the mounting pipe; 42 is the support ring; 43 is the anti-impact blade; 5 is the ceramic carrier structure; 51 is the vent hole; 6 is the connecting component; 61 is the sleeve; 62 is the fastening plate; and 621 is the slot. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Examples, such as Figures 1 to 8 As shown, an automotive exhaust purification device includes a DOC (Digital Oxide) component body for use in an automotive exhaust purification system. The DOC component includes an intake pipe 1 and a pipe body 2. The arrangement of the aforementioned components is conventional for DOC components in the prior art, and the specific arrangement and working principle will not be elaborated further. To buffer the intake airflow, a diversion component is provided on one side of the intake pipe 1. The diversion component includes a diversion frame 3 with a triangular star design. The diversion frame 3 has a diversion groove 31 with a converging design from the outside in. The diversion frame 3 can buffer the incoming airflow to a certain extent. Simultaneously, the diversion groove 31, in conjunction with the inner wall of the intake pipe 1, provides a certain acceleration effect to the exhaust airflow. This effectively buffers the intake process of the exhaust airflow. The buffering mechanism not only provides a buffer but also accelerates the flow of air, significantly improving the functionality of the device and meeting usage requirements. An anti-impact component 4 is installed at the connection between the inlet pipe 1 and the pipe body 2. This component buffers the incoming exhaust gas, preventing it from directly impacting the ceramic carrier structure 5. It also provides pressure relief, reducing the possibility of damage and extending the lifespan of the structure. The ceramic carrier structure 5 is installed inside the pipe body 2, with optimized internal channels. This increases the contact area and reduces the pore size, promoting the heating process and ensuring effective purification. A connecting component 6 is installed on the outside of the pipe body 2, facilitating connections between the device and other components and enhancing connection stability to ensure optimal performance.

[0024] In the above process: the established diversion component can, on the one hand, divert the incoming waste gas to ensure its smooth transport process, and on the other hand, buffer the incoming waste gas flow to reduce the possibility of damage to internal equipment and ensure its functionality. The established anti-impact component 4 can buffer the incoming waste gas to prevent it from blowing directly onto the ceramic carrier structure 5. At the same time, it also plays a role in depressurization to a certain extent, reducing the possibility of damage and relatively extending its service life. The established connection component 6 provides convenient conditions for connecting the equipment with other components, improving the stability of the connection to a certain extent and ensuring the effect of use. This device is reasonably designed, simple in structure, easy to process, and can reduce the impact of exhaust gas on equipment components, reduce the possibility of equipment damage, relatively extend its service life, optimize the waste gas flow process, reduce blockage, and facilitate subsequent cleaning, thereby improving the functionality of the device and meeting the usage requirements.

[0025] To improve the functionality of the device, the anti-impact component 4 includes a mounting pipe 41, a support ring 42 inside the mounting pipe 41, and anti-impact blades 43 between the mounting pipe 41 and the support ring 42. The anti-impact blades 43 are arranged at an angle, with their outer half being arc-shaped and their inner half being obtuse-angled. Specifically, to buffer the incoming flue gas, the arc-shaped structure of the anti-impact blades 43 can buffer the incoming flue gas once, and then it continues to travel, acting on the obtuse-angled structure of the anti-impact blades 43, so that the flue gas... The inclined entry angle and the anti-impact blades 43 effectively guide the flow direction of the exhaust gas and buffer it to a certain extent, and also have a pressure relief effect. This significantly reduces the possibility of damage to the equipment inside the pipe body 2 due to large impacts. This design also ensures the smooth flow of exhaust gas. Moreover, when the ceramic carrier needs to be cleaned by backflushing, the connection between the arc-shaped part and the obtuse angle part will block the backflushing airflow or water to a certain extent, ensuring the effective backflushing work, guaranteeing the cleaning effect, and meeting the usage requirements.

[0026] To ensure effective flow of exhaust gas, multiple vent holes 51 are provided within the ceramic carrier structure 5. These vent holes 51 are designed in a key shape, with adjacent rows of vent holes 51 arranged in an alternating pattern. This design optimizes the ceramic carrier design to a certain extent, primarily by increasing the contact area of ​​the channels and improving catalytic performance. Simultaneously, the thickness of the ceramic carrier between the staggered vent holes 51 is shortened to some extent. When exhaust gas is transported within the channels, the heating rate of the outer wall of the vent holes 51 accelerates, which is beneficial for rapid reaction within the DOC component, improving exhaust purification performance and thus enhancing its purification effect.

[0027] To further improve the rationality of the device's design, especially to ensure the stability of its connection with other equipment components, the connecting assembly 6 includes a sleeve 61 with a Z-shaped cross-section. A fastening plate 62 with an L-shaped cross-section is provided on one side of the sleeve 61. The long side of the fastening plate 62 tapers outwards from the corner. The long side of the fastening plate 62 has a certain deformation capacity relative to its short side. An arc-shaped slot 621 is provided on both the inner and outer sides of the long side of the fastening plate 62. Specifically, the slot 621 is located between the inner surface of one end of the fastening plate 62 and the outer end face of the sleeve 61. The existence of gaps provides effective installation space for the subsequent installation of equipment. The equipment to be installed is inserted into the gaps, and its tapered design makes the connection between the equipment and the pipe body 2 tighter, improving the stability of the installation. Then, the two are fixed together using conventional methods such as welding. The groove 621 on the inner side of the fastening plate 62 facilitates the welding work, while the groove 621 on the outer side also acts as a buffer, reducing the possibility of damage at the welded joint and improving the rationality of the device installation.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An automobile exhaust gas purification treatment device comprising a DOC assembly body for use in an automobile exhaust gas purification system, the DOC assembly comprising an intake pipe and a pipe body, characterized by, One side of the air inlet pipe is provided with a shunt assembly, the shunt assembly comprises a shunt frame in a trident star design, a shunt groove in a tapered design from outside to inside is formed in the shunt frame, a anti-collision assembly is arranged at the connection between the air inlet pipe and the pipe body, a ceramic carrier structure is arranged in the pipe body, and a connecting assembly is arranged on the outside of the pipe body.

2. The automobile exhaust purification device according to claim 1, wherein The anti-collision assembly comprises a mounting pipe, a support ring is arranged in the mounting pipe, anti-collision blades are arranged between the mounting pipe and the support ring, the anti-collision blades are arranged in an inclined manner, the outer half of the anti-collision blades is in an arc shape, and the inner half of the anti-collision blades is in an obtuse angle design.

3. The automobile exhaust purification device according to claim 2, wherein A plurality of air holes are formed in the ceramic carrier structure, the air holes are in a key shape design, and two adjacent rows of air holes are arranged in an interlaced manner.

4. The automobile exhaust purification device according to claim 3, wherein The connecting assembly comprises a sleeve pipe in a Z-shaped cross-section design, a fastening plate in an L-shaped cross-section design is arranged on one side of the sleeve pipe, the long side of the fastening plate is tapered outward from the corner, and a slot in an arc shape is formed on the inner and outer sides of the long side of the fastening plate.

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