A diesel internal combustion engine exhaust gas purification device

Abstract

This utility model provides a diesel internal combustion engine exhaust gas purification device, comprising: a cylinder, a guide shell fixedly connected to the upper surface of the cylinder, an inner limiting cylinder and an outer limiting cylinder fixedly connected to the bottom of the inner cavity of the cylinder, the inner cavity of the inner limiting cylinder being connected to an air intake pipe, and a partition plate fixedly connected between the outer limiting cylinder and the inner limiting cylinder, with air guide pipes symmetrically connected to the surface of the partition plate; an auxiliary ring and a crushing component fixedly connected to the upper and lower ends of the outer side of the outer limiting cylinder, respectively; and an adsorption plate fixedly connected to the upper end of the inner cavity of the cylinder via a carrying ring. This utility model, through the cooperation of the inner limiting cylinder, outer limiting cylinder, partition plate, air guide pipe, crushing component, purification liquid, and adsorption plate, enables the device to perform multiple purification treatments on the exhaust gas, thereby effectively improving the purification effect of the exhaust gas.

Description

Technical Field

[0001] This utility model relates to the field of exhaust gas purification technology, specifically to a diesel internal combustion engine exhaust gas purification device. Background Technology

[0002] Diesel internal combustion engines are characterized by high thermal efficiency and high power, and offer good economy and reliability. They are widely used in the fields of construction machinery and shipbuilding, such as ships, road rollers, loaders, and excavators, which all use diesel as their power source. However, the exhaust gases they emit contain many harmful components, mainly carbon dioxide, nitrogen oxides, small molecule organic matter, and carbon particles. The emission of these harmful substances greatly endangers the health of construction workers and the normal progress of construction, and also causes serious air pollution. However, most common exhaust gas purification devices remove particulate matter from the exhaust gas, while some harmful substances in the exhaust gas cannot be filtered out and are therefore directly emitted, causing corresponding air pollution. Utility Model Content

[0003] To overcome the shortcomings of the existing technology, a diesel internal combustion engine exhaust gas purification device is provided to solve the problems mentioned in the background technology.

[0004] To achieve the above objectives, a diesel internal combustion engine exhaust gas purification device is provided, comprising: a cylinder, a guide shell fixedly connected to the upper surface of the cylinder, an inner limiting cylinder and an outer limiting cylinder fixedly connected to the bottom of the inner cavity of the cylinder, the inner cavity of the inner limiting cylinder being connected to an air intake pipe, and a partition plate fixedly connected between the outer limiting cylinder and the inner limiting cylinder, with air guide pipes symmetrically connected to the surface of the partition plate, and an auxiliary ring and a crushing component fixedly connected to the upper and lower ends of the outer side of the outer limiting cylinder, respectively, while an adsorption plate is fixedly connected to the upper end of the inner cavity of the cylinder through a loading ring.

[0005] Preferably, the cylinder body has a cylindrical structure, the fitting groove on the upper surface of the cylinder body has a circular structure, and the bottom of the fitting groove is fixedly connected to the sealing layer. At the same time, multiple sets of positioning holes are opened at equal intervals around the outer side of the fitting groove in the circumferential direction.

[0006] Preferably, the guide shell is in the shape of a frustum, the upper surface of the guide shell is fixedly connected to the exhaust pipe, and the lower surface of the guide shell is fixedly connected to the fitting groove with a fitting ring, which is in the shape of a ring and is fixedly connected to the fitting groove by bolts.

[0007] Preferably, the loading ring fixedly connected to the upper end of the inner cavity of the cylinder has a circular structure, the axial section of the loading ring has a right-angled triangular structure, and the adsorption plate has a circular structure. The inner cavity of the adsorption plate is filled with activated carbon, and the adsorption plate is fixedly connected to the upper surface of the loading ring by a snap fastener.

[0008] Preferably, the auxiliary ring and the crushing component that are fixedly connected between the inner cavity of the cylinder and the outer limiting cylinder are both annular structures, and multiple sets of air holes are evenly opened on the surface of the auxiliary ring. At the same time, the lower end of the inner cavity of the cylinder is filled with purification liquid, and the auxiliary ring is located above the surface of the purification liquid.

[0009] Preferably, the crushing component consists of an installation frame and crushing meshes. The installation frame has a circular ring structure, and six sets of crushing meshes are fixedly connected at equal intervals around the circumference of the installation frame. All six sets of crushing meshes have a fan-shaped ring structure.

[0010] Preferably, the outer limiting cylinder has a cylindrical structure, the axial section of the outer limiting cylinder has a U-shaped structure, and multiple sets of support rods are fixedly connected at equal intervals around the lower surface of the outer limiting cylinder in the circumferential direction. All sets of support rods have a circular cylindrical structure, and the lower end of the support rods is fixedly connected to the bottom of the inner cavity of the cylinder. At the same time, the guide block fixedly connected to the top of the inner cavity of the outer limiting cylinder has a spherical protrusion.

[0011] Preferably, the inner limiting cylinder has a cylindrical structure, and the partition plate fixedly connected to the upper end of the outer side of the inner limiting cylinder has a circular structure. Multiple sets of air guide pipes are fixedly connected at equal intervals around the lower surface of the partition plate in the circumferential direction. All sets of air guide pipes have an L-shaped structure, and the bent part at the lower end of the air guide pipe is located below the crushing component.

[0012] Compared with the prior art, the beneficial effects of this utility model are: through the cooperation of the inner limiting cylinder, the partition plate, the air guide pipe, the outer limiting cylinder, the crushing component, the purification liquid and the adsorption plate, the device can perform multiple purification treatments on the exhaust gas. The setting of the crushing component can help increase the gas-liquid contact area, thereby effectively improving the purification effect of the exhaust gas and thus effectively reducing the probability of air pollution after the exhaust gas is emitted. Attached Figure Description

[0013] Figure 1 This is a front view schematic diagram of an embodiment of the present utility model.

[0014] Figure 2 This is a top view schematic diagram of the crushing component according to an embodiment of the present utility model.

[0015] Figure 3 This is a top view of the cylindrical body according to an embodiment of the present utility model.

[0016] Figure 4 This is an embodiment of the present utility model. Figure 1 Enlarged diagram of point A.

[0017] Figure 5 This is an embodiment of the present utility model. Figure 1 Enlarged diagram of point B.

[0018] In the diagram: 1. Cylinder; 2. Support rod; 3. Crushing assembly; 4. Outer limiting cylinder; 5. Air guide pipe; 6. Inner limiting cylinder; 7. Divider plate; 8. Auxiliary ring; 9. Guide block; 10. Loading ring; 11. Adsorption plate; 12. Guide shell; 13. Fitting ring; 14. Sealing layer; 15. Crushing mesh; 16. Mounting frame. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Reference Figures 1 to 5 As shown, this utility model provides a diesel internal combustion engine exhaust gas purification device, including: a cylinder 1, a guide shell 12 fixedly connected to the upper surface of the cylinder 1, an inner limiting cylinder 6 and an outer limiting cylinder 4 fixedly connected to the bottom of the inner cavity of the cylinder 1 respectively, the inner cavity of the inner limiting cylinder 6 is connected to the air intake pipe, and a partition plate 7 is fixedly connected between the outer limiting cylinder 4 and the inner limiting cylinder 6. The surface of the partition plate 7 is symmetrically connected to the air guide pipe 5, and the upper and lower ends of the outer side of the outer limiting cylinder 4 are fixedly connected to the auxiliary ring 8 and the crushing component 3 respectively. At the same time, the upper end of the inner cavity of the cylinder 1 is fixedly connected to the adsorption plate 11 through the loading ring 10.

[0021] In this embodiment, the exhaust gas from the diesel internal combustion engine is injected into the cylinder 1 through the intake pipe. Guided by the inner limiting cylinder 6, guide block 9, partition plate 7, and outer limiting cylinder 4, the exhaust gas is evenly injected into the purification liquid filled at the lower end of the cylinder 1's inner cavity through the air guide pipe 5. This allows the exhaust gas to make corresponding gas-liquid contact with the purification liquid, improving the filtration effect on particulate matter in the exhaust gas and purifying and filtering harmful components. Furthermore, during the exhaust gas's ascent, the crushing component 3 breaks up the exhaust gas bubbles. The exhaust gas bubbles are broken down into smaller bubbles, thereby increasing the gas-liquid contact area and enhancing the purification and filtration effect of the purification liquid on the exhaust gas. When the exhaust gas leaves the purification liquid and flows into the exhaust pipe, it passes through the adsorption plate 11. The activated carbon filled in the inner cavity of the adsorption plate 11 performs secondary adsorption and filtration purification on the exhaust gas, which can improve the cleanliness of the exhaust gas and reduce the humidity of the exhaust gas, reducing the probability of the exhaust gas carrying away the purification liquid, thereby enhancing the purification effect of the device on the exhaust gas of diesel internal combustion engines.

[0022] In a preferred embodiment, the cylinder 1 has a cylindrical structure, the fitting groove on the upper surface of the cylinder 1 has a circular structure, and the bottom of the fitting groove is fixedly connected to the sealing layer 14. At the same time, multiple sets of positioning holes are opened at equal intervals around the outer side of the fitting groove in the circumferential direction.

[0023] In this embodiment, as Figure 1 , Figure 3 and Figure 4 The sealing layer 14 can be made of soft rubber, which can help enhance the sealing of the connection between the guide shell 12 and the cylinder 1. At the same time, the opening of the positioning hole makes it easy for the bolt to be embedded in the fitting groove, so as to realize the fixed connection between the cylinder 1 and the fitting ring 13.

[0024] In a preferred embodiment, the guide shell 12 is generally in the shape of a frustum. The exhaust pipe is fixedly connected to the upper surface of the guide shell 12, and the fitting ring 13 is fixedly connected to the lower surface of the guide shell 12 at the position relative to the fitting groove. The fitting ring 13 is in the shape of a ring and is fixedly connected to the fitting groove by bolts.

[0025] In this embodiment, as Figure 1 , Figure 3 and Figure 4 The inner cavity of the guide shell 12 is connected to the exhaust pipe. The structure of the guide shell 12 can help guide the exhaust gas. At the same time, the size of the fitting ring 13 and the fitting groove are matched, which can effectively enhance the sealing shape at the connection between the guide shell 12 and the cylinder 1. Furthermore, the outer side of the fitting ring 13 is provided with a screw hole corresponding to the position of the positioning hole, which facilitates the convenient assembly and disassembly of the cylinder 1, the fitting ring 13 and the guide shell 12 by bolts.

[0026] In a preferred embodiment, the loading ring 10 fixedly connected to the upper end of the inner cavity of the cylinder 1 has a circular structure, the axial section of the loading ring 10 has a right-angled triangular structure, and the adsorption plate 11 has a circular structure. The inner cavity of the adsorption plate 11 is filled with activated carbon, and the adsorption plate 11 is fixedly connected to the upper surface of the loading ring 10 by a snap fastener.

[0027] In this embodiment, as Figure 1 and Figure 3 The adsorption plate 11 is fixedly connected to the upper surface of the carrying ring 10 by a common snap-fit ​​structure, which can improve the convenience of loading and unloading the adsorption plate 11, and at the same time, it can perform final adsorption filtration and purification on the exhaust gas that is about to be discharged.

[0028] In a preferred embodiment, the auxiliary ring 8 and the crushing component 3, which are fixedly connected between the inner cavity of the cylinder 1 and the outer limiting cylinder 4, are both annular structures. The surface of the auxiliary ring 8 is evenly provided with multiple sets of air holes. Meanwhile, the lower end of the inner cavity of the cylinder 1 is filled with purification liquid, and the auxiliary ring 8 is located above the surface of the purification liquid.

[0029] In this embodiment, as Figure 1The pores evenly distributed on the surface of the auxiliary ring 8 can effectively limit the chance of the purification liquid accidentally flowing up to the adsorption plate 11, reducing the interference effect of the purification liquid on the adsorption plate 11. At the same time, the purification liquid can be water, sodium chloride solution or urea solution, etc.

[0030] In a preferred embodiment, the crushing component 3 consists of a mounting frame 16 and a crushing mesh 15. The mounting frame 16 has a circular structure, and six sets of crushing meshes 15 are fixedly connected at equal intervals around the mounting frame 16 in the circumferential direction. All six sets of crushing meshes 15 have a fan-shaped ring structure.

[0031] In this embodiment, as Figure 1 , Figure 2 and Figure 5 The setting of the crushing component 3 enables the large bubbles formed by the exhaust gas in the purification liquid to be broken into multiple smaller bubbles, thereby helping to increase the gas-liquid contact area and improve the purification effect of the purification liquid on various harmful components in the exhaust gas.

[0032] In a preferred embodiment, the outer limiting cylinder 4 has a cylindrical structure and a U-shaped cross section. Multiple sets of support rods 2 are fixedly connected around the lower surface of the outer limiting cylinder 4 at equal intervals. All sets of support rods 2 have a cylindrical structure, and the lower end of the support rods 2 is fixedly connected to the bottom of the inner cavity of the cylinder 1. Meanwhile, the guide block 9 fixedly connected to the top of the inner cavity of the outer limiting cylinder 4 has a spherical protrusion.

[0033] In this embodiment, as Figure 1 The support rod 2 allows for a gap between the lower surface of the outer limiting cylinder 4 and the bottom of the inner cavity of the cylinder 1, which facilitates the discharge of exhaust gas. At the same time, the structure of the guide block 9 can work with the arc-shaped structure at the edge of the outer limiting cylinder 4 to improve the smoothness of exhaust gas flow and reduce the impact force of exhaust gas on the outer limiting cylinder 4.

[0034] In a preferred embodiment, the inner limiting cylinder 6 has a cylindrical structure, and the partition plate 7 fixedly connected to the upper end of the outer side of the inner limiting cylinder 6 has a circular structure. Multiple sets of air guide pipes 5 are fixedly connected around the lower surface of the partition plate 7 at equal intervals in the circumferential direction. All sets of air guide pipes 5 have an L-shaped structure, and the bent part at the lower end of the air guide pipe 5 is located below the crushing component 3.

[0035] In this embodiment, as Figure 1 , Figure 2 and Figure 5 The partition plate 7 and the air guide pipe 5 enable the exhaust gas to be evenly injected into the purification liquid, thereby effectively improving the gas-liquid contact effect and thus enhancing the purification effect of the device on the exhaust gas.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A diesel internal combustion engine exhaust gas purification device, comprising: The cylinder (1) is characterized in that: the upper surface of the cylinder (1) is fixedly connected to the flow guide shell (12), and the bottom of the inner cavity of the cylinder (1) is fixedly connected to the inner limiting cylinder (6) and the outer limiting cylinder (4), the inner cavity of the inner limiting cylinder (6) is connected to the air inlet pipe, and the outer limiting cylinder (4) and the inner limiting cylinder (6) are fixedly connected to the partition plate (7), the surface of the partition plate (7) is symmetrically connected to the air guide pipe (5), and the upper and lower ends of the outer side of the outer limiting cylinder (4) are fixedly connected to the auxiliary ring (8) and the crushing component (3), and the upper end of the inner cavity of the cylinder (1) is fixedly connected to the adsorption plate (11) through the loading ring (10).

2. The diesel internal combustion engine exhaust gas purification device according to claim 1, characterized in that, The cylinder (1) has a cylindrical structure. The fitting groove on the upper surface of the cylinder (1) has a circular structure, and the bottom of the fitting groove is fixedly connected to the sealing layer (14). At the same time, multiple sets of positioning holes are opened at equal intervals around the outer side of the fitting groove in the circumferential direction.

3. The diesel internal combustion engine exhaust gas purification device according to claim 1, characterized in that, The guide shell (12) is in the shape of a frustum. The upper surface of the guide shell (12) is fixedly connected to the exhaust pipe, and the lower surface of the guide shell (12) is fixedly connected to the fitting ring (13) relative to the fitting groove. The fitting ring (13) is in the shape of a ring and is fixedly connected to the fitting groove by bolts.

4. The diesel internal combustion engine exhaust gas purification device according to claim 1, characterized in that, The loading ring (10) fixedly connected to the upper end of the inner cavity of the cylinder (1) has a circular structure. The axial section of the loading ring (10) has a right-angled triangular structure, and the adsorption plate (11) has a circular structure. The inner cavity of the adsorption plate (11) is filled with activated carbon, and the adsorption plate (11) is fixedly connected to the upper surface of the loading ring (10) by a snap fastener.

5. The diesel internal combustion engine exhaust gas purification device according to claim 1, characterized in that, The auxiliary ring (8) and the crushing component (3) that are fixedly connected between the inner cavity of the cylinder (1) and the outer limiting cylinder (4) are both circular ring structures. Multiple sets of air holes are evenly opened on the surface of the auxiliary ring (8). Meanwhile, the lower end of the inner cavity of the cylinder (1) is filled with purification liquid, and the auxiliary ring (8) is located above the surface of the purification liquid.

6. The diesel internal combustion engine exhaust gas purification device according to claim 1, characterized in that, The crushing component (3) consists of a mounting frame (16) and a crushing mesh (15). The mounting frame (16) has a circular structure, and six sets of crushing meshes (15) are fixedly connected around the mounting frame (16) at equal intervals along the circumference. All six sets of crushing meshes (15) have a fan-shaped structure.

7. The diesel internal combustion engine exhaust gas purification device according to claim 1, characterized in that, The outer limiting cylinder (4) has a cylindrical structure and a U-shaped cross section. Multiple sets of support rods (2) are fixedly connected around the lower surface of the outer limiting cylinder (4) at equal intervals. All sets of support rods (2) have a circular cylindrical structure. The lower end of the support rods (2) is fixedly connected to the bottom of the inner cavity of the cylinder (1). At the same time, the guide block (9) fixedly connected to the top of the inner cavity of the outer limiting cylinder (4) has a spherical protrusion.

8. The diesel internal combustion engine exhaust gas purification device according to claim 1, characterized in that, The inner limiting cylinder (6) has a cylindrical structure. The partition plate (7) fixedly connected to the upper side of the outer side of the inner limiting cylinder (6) has a circular structure. Multiple sets of air guide pipes (5) are fixedly connected around the lower surface of the partition plate (7) at equal intervals. All sets of air guide pipes (5) have an L-shaped structure. At the same time, the bent part at the lower end of the air guide pipe (5) is located below the crushing component (3).

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