Catalytic oxidizer for diesel vehicle exhaust

Abstract

This utility model relates to the field of catalytic oxidizer technology, specifically a catalytic oxidizer for diesel vehicle exhaust treatment. It includes a catalytic component, an intake component, and an exhaust component. The catalytic component includes a perforated heat dissipation shell, with the catalytic oxidizer body installed at one end of the shell. The intake component includes an intake manifold, with a preheating box on one side. A heating ring and a temperature sensor are installed inside the preheating box. This utility model preheats the catalytic oxidizer body using the heating ring, accelerating the temperature rise of the catalyst within the oxidizer body to achieve the required activity. This prevents the release of harmful substances during exhaust preheating, improving the completeness of exhaust treatment. The perforated heat dissipation shell isolates and assists in heat dissipation from the catalytic oxidizer body, preventing heat transfer from the oxidizer body to the vehicle chassis.

Description

Technical Field

[0001] This utility model relates to the field of catalytic oxidizer technology, specifically a catalytic oxidizer for diesel vehicle exhaust treatment. Background Technology

[0002] Diesel vehicle exhaust contains a large number of pollutants, such as nitrogen oxides, particulate matter, carbon monoxide, and hydrocarbons, which are very harmful to the environment and human health. In order to reduce its pollution, diesel vehicle exhaust treatment technologies and devices are constantly being developed. The catalytic oxidizer in diesel vehicle exhaust treatment is the core front-end device of the exhaust after-treatment system. It is mainly used to oxidize and remove carbon monoxide and hydrocarbons in the exhaust, and to assist in the treatment of some particulate matter, while providing conditions for the regeneration of subsequent devices.

[0003] Chinese patent discloses a three-way catalytic converter assembly (authorization announcement number CN219176430U). In this patent, the user pulls two side blocks inwards, causing the blocks to move a rod inwards. The rod moves inwards along the outer wall of a sliding rod, simultaneously compressing a spring. This allows an arc-shaped block to be pulled out of the second connecting pipe. The arc-shaped block then removes a dust collector via a support block. The dust collector is then rotated to disengage from the support block, and a new dust collector is screwed into the support block and then inserted into the second connecting pipe via the arc-shaped block. However, this catalytic oxidizer relies on the exhaust gas temperature for preheating. During preheating, the catalyst temperature may not reach the required activity level, preventing the catalytic oxidation of the exhaust gas and resulting in the emission of harmful substances. This is detrimental to the completeness of the catalytic oxidizer's exhaust gas treatment. Furthermore, the catalytic oxidizer body is directly exposed, and the heat from the catalytic oxidizer body is directly transferred to the vehicle chassis, potentially damaging it. Therefore, those skilled in the art have provided a diesel vehicle exhaust gas treatment catalytic oxidizer to address the problems mentioned in the background section. Utility Model Content

[0004] The purpose of this invention is to provide a catalytic oxidizer for diesel vehicle exhaust treatment, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A diesel vehicle exhaust catalytic oxidizer includes a catalytic component, an intake component, and an exhaust component. The intake component is located on one side of the catalytic component, and the exhaust component is located on the other side of the catalytic component. The catalytic component includes a perforated heat dissipation shell, and the catalytic oxidizer body is installed at one end of the interior of the perforated heat dissipation shell. The intake component includes an intake pipe head, and a preheating box is provided on one side of the intake pipe head. A heating ring is installed inside the preheating box, and a temperature sensor is installed inside the preheating box.

[0007] As a further embodiment of this utility model: threaded rods are provided on both sides of the mesh heat dissipation shell, and a nut is installed at one end of the threaded rod. A first fixing ring is provided at one end of the outer side of the air inlet pipe head, and a first fixing hole is provided on one side of the first fixing ring. The air outlet component includes an air outlet pipe head, and a second fixing ring is provided at one end of the outer side of the air outlet pipe head, and a second fixing hole is provided on one side of the second fixing ring.

[0008] As a further embodiment of this utility model: the output end of the heating ring is connected to the input end of the preheating box, the output end of the preheating box is connected to the input end of the catalytic oxidizer body, and the output end of the catalytic oxidizer body is connected to the input end of the gas outlet component.

[0009] As a further embodiment of this utility model: the threaded rod slides inside the first fixing hole, the nut is located outside the first fixing ring, and the first fixing ring is fixed to one side of the mesh heat dissipation shell through the threaded rod, the nut, and the first fixing hole.

[0010] As a further embodiment of this utility model: the threaded rod slides inside the second fixing hole, the nut is located outside the second fixing ring, and the second fixing ring is fixed to the other side of the mesh heat dissipation shell through the threaded rod, the nut, and the second fixing hole.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The diesel vehicle exhaust gas treatment catalytic oxidizer of this utility model preheats the main body of the catalytic oxidizer through a heating ring, which accelerates the temperature rise of the catalyst in the main body of the catalytic oxidizer so that it reaches the activity requirements, avoids the discharge of harmful substances during the exhaust gas preheating process, and is conducive to the completeness of exhaust gas treatment by the catalytic oxidizer.

[0013] 2. The catalytic oxidizer body is isolated and its heat dissipation is aided by a mesh heat dissipation shell, preventing heat from the catalytic oxidizer body from being transferred to the vehicle chassis. Attached Figure Description

[0014] Figure 1 A schematic diagram of a catalytic oxidizer for diesel vehicle exhaust treatment.

[0015] Figure 2 A perspective view of the catalytic components in a diesel vehicle exhaust catalytic oxidizer.

[0016] Figure 3 A perspective view of the intake components in a diesel vehicle exhaust catalytic oxidizer.

[0017] Figure 4 This is a schematic diagram of the exhaust component in a diesel vehicle exhaust catalytic oxidizer.

[0018] In the diagram: 1. Catalytic converter; 2. Inlet component; 3. Outlet component; 4. Mesh heat dissipation shell; 5. Catalytic oxidizer body; 6. Inlet pipe head; 7. Preheating box; 8. Heating ring; 9. Temperature sensor; 10. Threaded rod; 11. Nut; 12. First fixing ring; 13. First fixing hole; 14. Outlet pipe head; 15. Second fixing ring; 16. Second fixing hole. Detailed Implementation

[0019] Please see Figures 1-4 In this embodiment of the present invention, a diesel vehicle exhaust catalytic oxidizer includes a catalytic component 1, an intake component 2, and an exhaust component 3. The intake component 2 is located on one side of the catalytic component 1, and the exhaust component 3 is located on the other side of the catalytic component 1. The catalytic component 1 includes a mesh heat dissipation shell 4, and a catalytic oxidizer body 5 is installed at one end of the mesh heat dissipation shell 4. The intake component 2 includes an intake pipe head 6, and a preheating box 7 is provided on one side of the intake pipe head 6. A heating ring 8 and a temperature sensor 9 are installed inside the preheating box 7. The output end of the heating ring 8 is connected to the input end of the preheating box 7, the output end of the preheating box 7 is connected to the input end of the catalytic oxidizer body 5, and the output end of the catalytic oxidizer body 5 is connected to the input end of the exhaust component 3. First, install the diesel exhaust catalytic oxidizer onto the vehicle's exhaust outlet pipe. Connect the temperature sensor 9 and the heating ring 8 to the existing controller. Then, start using it. The heating ring 8 heats the inside of the preheating box 7, preheating the catalytic oxidizer body 5. The temperature sensor 9 detects the temperature inside the preheating box 7. When the preheating of the catalytic oxidizer body 5 is complete, the heating ring 8 stops operating. Exhaust gas enters the preheating box 7 through the intake manifold 6. The exhaust gas inside the preheating box 7 is then introduced into the catalytic oxidizer body 5. The catalytic oxidizer body 5 catalytically oxidizes the exhaust gas. The treated exhaust gas is discharged through the exhaust manifold 14. Finally, when the catalytic oxidizer needs cleaning, disassemble the catalytic component 1, the intake component 2, and the exhaust component 3 to clean the catalytic oxidizer body 5.

[0020] exist Figure 2 , 3In section 4: Threaded rods 10 are provided on both sides of the mesh heat sink 4, with nuts 11 installed at one end of each threaded rod 10. A first fixing ring 12 is provided at one outer end of the air inlet head 6, with a first fixing hole 13 on one side of the first fixing ring 12. The air outlet component 3 includes an air outlet head 14, with a second fixing ring 15 provided at one outer end of the air outlet head 14, and a second fixing hole 16 on one side of the second fixing ring 15. The threaded rods 10 slide within the first fixing hole 13, and the nuts 11 are located outside the first fixing ring 12. The first fixing ring 12 is fixed to one side of the mesh heat sink 4 via the threaded rods 10, nuts 11, and the first fixing hole 13. Inside hole 16, nut 11 is located outside the second fixing ring 15. The second fixing ring 15 is fixed to the other side of the mesh heat sink 4 via threaded rod 10, nut 11, and second fixing hole 16. Threaded rod 10 and nut 11 on one side of mesh heat sink 4 are connected to the second fixing ring 15, and threaded rod 10 and nut 11 on the other side of mesh heat sink 4 are connected to the first fixing ring 12. When cleaning of the catalytic oxidizer is required, nut 11 rotates to rotate threaded rod 10, threaded rod 10 on one side of mesh heat sink 4 slides out of first fixing ring 12, and threaded rod 10 on the other side of mesh heat sink 4 slides out of second fixing hole 16. Catalytic component 1, intake component 2, and exhaust component 3 are then separated for cleaning of the catalytic oxidizer body 5.

[0021] The working principle of this utility model is as follows: First, the diesel vehicle exhaust gas treatment catalytic oxidizer is installed on the vehicle exhaust gas output pipe. The temperature sensor 9 and the heating ring 8 are connected to the existing controller. Then, it is put into use. The heating ring 8 heats the inside of the preheating box 7, and the temperature preheats the catalytic oxidizer body 5. The temperature sensor 9 detects the temperature inside the preheating box 7. When the preheating of the catalytic oxidizer body 5 is completed, the heating ring 8 stops running. The exhaust gas enters the inside of the preheating box 7 through the intake pipe head 6. The exhaust gas inside the preheating box 7 is introduced into the inside of the catalytic oxidizer body 5. The catalytic oxidizer body 5 catalytically oxidizes the exhaust gas. The treated exhaust gas is discharged through the exhaust pipe head 14. Finally, when the catalytic oxidizer needs to be cleaned, the threaded rod 10 is turned out by rotating the nut 11. The threaded rod 10 on one side of the mesh heat sink 4 slides out of the first fixing ring 12, and the threaded rod 10 on the other side of the mesh heat sink 4 slides out of the second fixing hole 16. The catalytic component 1, the intake component 2 and the exhaust component 3 are disassembled to clean the catalytic oxidizer body 5.

[0022] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A catalytic oxidizer for diesel vehicle exhaust gas treatment, characterized in that, The device includes a catalytic component (1), an air intake component (2), and an air outlet component (3). The air intake component (2) is located on one side of the catalytic component (1), and the air outlet component (3) is located on the other side of the catalytic component (1). The catalytic component (1) includes a mesh heat dissipation shell (4). A catalytic oxidizer body (5) is installed at one end of the mesh heat dissipation shell (4). The air intake component (2) includes an air intake pipe head (6). A preheating box (7) is provided on one side of the air intake pipe head (6). A heating ring (8) is installed inside the preheating box (7). A temperature sensor (9) is installed inside the preheating box (7).

2. The diesel vehicle exhaust gas treatment catalytic oxidizer according to claim 1, characterized in that, The mesh heat sink (4) is provided with threaded rods (10) on both sides, and a nut (11) is installed at one end of the threaded rod (10). A first fixing ring (12) is provided at one end of the outer side of the air inlet head (6). A first fixing hole (13) is provided on one side of the first fixing ring (12). The air outlet component (3) includes an air outlet head (14). A second fixing ring (15) is provided at one end of the outer side of the air outlet head (14). A second fixing hole (16) is provided on one side of the second fixing ring (15).

3. The diesel vehicle exhaust gas treatment catalytic oxidizer according to claim 1, characterized in that, The output end of the heating ring (8) is connected to the input end of the preheating box (7), the output end of the preheating box (7) is connected to the input end of the catalytic oxidizer body (5), and the output end of the catalytic oxidizer body (5) is connected to the input end of the gas outlet component (3).

4. The diesel vehicle exhaust gas treatment catalytic oxidizer according to claim 2, characterized in that, The threaded rod (10) slides inside the first fixing hole (13), and the nut (11) is located outside the first fixing ring (12). The first fixing ring (12) is fixed to one side of the mesh heat sink (4) by the threaded rod (10), the nut (11), and the first fixing hole (13).

5. The diesel vehicle exhaust gas treatment catalytic oxidizer according to claim 2, characterized in that, The threaded rod (10) slides inside the second fixing hole (16), the nut (11) is located outside the second fixing ring (15), and the second fixing ring (15) is fixed to the other side of the mesh heat sink (4) through the threaded rod (10), the nut (11), and the second fixing hole (16).

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