Buffer structure of ship tail gas treatment device
By designing the slide bar, slider, slide cylinder, and spring assembly in the buffer structure, the impact of exhaust gas treatment device vibration on the chimney compartment was resolved, extending the service life of the chimney compartment and reducing severe vibration.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIHUI SHIPBUILDING TECH (NANTONG) CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-05-05
AI Technical Summary
In the prior art, the rigid connection of the ship's exhaust gas treatment device to the chimney compartment causes vibration, which affects the service life of the chimney compartment.
A buffer structure was designed, including components such as a slide bar, a slider, a connecting plate, a slide cylinder, and a spring. Through the synergistic effect of these components, the vibration of the exhaust gas treatment device is absorbed and buffered, reducing the impact of vibration on the chimney compartment.
It effectively reduces the vibration impact of the exhaust gas treatment device on the chimney compartment, extends the service life of the chimney compartment, and slows down the vibration speed through liquid flow, reducing the possibility of severe vibration.
Smart Images

Figure CN224200720U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ship exhaust gas treatment technology, specifically a buffer structure for a ship exhaust gas treatment device. Background Technology
[0002] Currently, with the development of international shipping and ocean-going vessel transportation, exhaust emissions from ship engines have become a major source of pollution in coastal areas, especially ports. In order to reduce the serious pollution caused by exhaust emissions to the atmospheric environment, ship exhaust gas treatment devices are generally installed inside the ship's chimney along with the ship's exhaust system.
[0003] In the existing technology, ship exhaust gas treatment devices are generally rigidly connected to the bulkhead of the funnel compartment. This configuration causes the vibrations generated by the exhaust gas treatment device during operation to continuously act on the funnel compartment, which may affect the service life of the funnel compartment.
[0004] Therefore, this utility model provides a buffer structure for a ship exhaust gas treatment device to solve the above problems. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] This invention provides a buffer structure for a ship exhaust gas treatment device, aiming to solve the problems mentioned in the background art.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, the present invention provides the following technical solution: a buffer structure for a ship exhaust gas treatment device, including a chimney compartment, an exhaust gas treatment device body is provided inside the chimney compartment, a connecting groove is provided on the side surface of the exhaust gas treatment device body, a connecting ring is fixed inside the connecting groove, and a buffer mechanism is provided inside the chimney compartment.
[0009] The buffer mechanism includes a mounting plate, one side of which is fixedly connected to the inner wall of the chimney compartment, and the other side of which is fixedly connected to a mounting block. A sliding rod is fixedly connected to the mounting block, a first spring is sleeved on the side surface of the sliding rod, a slider is slidably connected to the side surface of the sliding rod, a connecting strip is hinged to one side of the slider, a connecting plate is hinged to the end of the connecting strip away from the slider, and a bolt is fixedly connected to one side of the connecting plate.
[0010] As a preferred technical solution of this application, the bolt passes through the connecting ring, and a nut is screwed onto the side surface of the bolt. One side of the connecting ring is in contact with the side of the connecting plate near the bolt.
[0011] As a preferred technical solution of this application, one end of the first spring is fixedly connected to one side of the mounting block, and the other end of the first spring is fixedly connected to one side of the slider.
[0012] As a preferred technical solution of this application, the buffer mechanism further includes a slide cylinder, a connecting column is slidably connected inside the slide cylinder, a pressure ring is fixedly connected to the side surface of the connecting column, the side surface of the pressure ring slides against the inner wall of the slide cylinder, one end of the connecting column extends to the outside of the slide cylinder and is fixedly connected to a push plate, the side of the push plate away from the connecting column is fixedly connected to the side of the connecting plate away from the bolt, and a second spring is sleeved on the side surface of the connecting column.
[0013] As a preferred technical solution of this application, the pressure ring is provided with multiple through holes, which are arranged in a ring array on the pressure ring. One end of the second spring is fixedly connected to the side of the slide cylinder away from the mounting plate, and the other end of the second spring is fixedly connected to the side of the push plate near the connecting column.
[0014] As a preferred technical solution of this application, a washer is fitted on the side surface of the bolt, one side of the washer is in contact with the side of the connecting ring away from the connecting plate, and the other side of the washer is in contact with one side of the nut.
[0015] As a preferred technical solution of this application, a rotating shaft is fixedly connected inside the slider, and a roller is rotatably connected to the side surface of the rotating shaft, with the side surface of the roller in contact with the side surface of the slider.
[0016] (III) Beneficial Effects
[0017] 1. By setting up the slide bar, the first spring, the slider, the connecting bar, and the connecting plate, when the vibration generated by the exhaust gas treatment device body acts on the connecting plate, the connecting plate can drive the slider to slide on the slide bar through the connecting bar, thereby providing a buffer space for the exhaust gas treatment device body, reducing the possibility of the vibration generated by the exhaust gas treatment device body acting on the chimney compartment, and helping to extend the service life of the chimney compartment.
[0018] 2. By configuring the slide cylinder, pressure ring, through hole, connecting column, and second spring, when the vibration generated by the exhaust gas treatment device body acts on the connecting plate, the connecting plate can drive the connecting column to move. When the connecting column moves, it can drive the pressure ring to move inside the slide cylinder. During the movement of the pressure ring, the liquid inside the slide cylinder will flow from one side of the pressure ring to the other side through the through hole, thereby effectively slowing down the movement speed of the connecting column and the connecting plate and reducing the possibility of severe vibration of the exhaust gas treatment device body. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the buffer structure of a ship exhaust gas treatment device.
[0020] Figure 2 This is a schematic diagram of the installation of a connecting plate in the buffer structure of a ship exhaust gas treatment device.
[0021] Figure 3This is a cross-sectional view of the slide in the buffer structure of a ship exhaust gas treatment device;
[0022] Figure 4 This is a cross-sectional view of a slider in the buffer structure of a ship exhaust gas treatment device.
[0023] Figure 5 for Figure 2 Enlarged view of point A in the image;
[0024] Figure 6 for Figure 3 Enlarged view of point B in the image.
[0025] In the picture:
[0026] 1. Chimney compartment; 2. Main body of exhaust gas treatment device; 3. Connecting groove; 4. Connecting ring; 5. Mounting plate; 6. Mounting block; 7. Slide rod; 8. First spring; 9. Sliding block; 10. Connecting strip; 11. Connecting plate; 12. Bolt; 13. Nut; 14. Washer; 15. Slide cylinder; 16. Pressure ring; 17. Through hole; 18. Connecting column; 19. Second spring; 20. Push plate; 21. Roller. Detailed Implementation
[0027] 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.
[0028] This utility model provides a buffer structure for a ship exhaust gas treatment device, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a chimney compartment 1, inside which is a main body 2 of an exhaust gas treatment device. A connecting groove 3 is provided on the side surface of the main body 2 of the exhaust gas treatment device. A connecting ring 4 is fixed inside the connecting groove 3. A buffer mechanism is provided inside the chimney compartment 1.
[0029] The buffer mechanism includes a mounting plate 5, one side of which is fixedly connected to the inner wall of the chimney chamber 1, and the other side of which is fixedly connected to a mounting block 6. A sliding rod 7 is fixedly connected to the mounting block 6, and a first spring 8 is sleeved on the side surface of the sliding rod 7. A slider 9 is slidably connected to the side surface of the sliding rod 7. A connecting strip 10 is hinged to one side of the slider 9, and a connecting plate 11 is hinged to the end of the connecting strip 10 away from the slider 9. A bolt 12 is fixedly connected to one side of the connecting plate 11.
[0030] Bolt 12 passes through connecting ring 4, and nut 13 is screwed onto the side surface of bolt 12. One side of connecting ring 4 is in contact with the side of connecting plate 11 near bolt 12.
[0031] One end of the first spring 8 is fixedly connected to one side of the mounting block 6, and the other end of the first spring 8 is fixedly connected to one side of the slider 9.
[0032] After the exhaust gas treatment device body 2 is installed on the connecting plate 11 via the connecting ring 4, it needs to be reinforced by screwing the nut 13 onto the bolt 12. When the exhaust gas treatment device body 2 vibrates, the vibration effect will first act on the connecting plate 11. The connecting plate 11 can drive the slider 9 to slide on the slide rod 7 via the connecting strip 10, thereby providing a buffer space for the exhaust gas treatment device body 2, reducing the possibility of the vibration generated by the exhaust gas treatment device body 2 acting on the chimney chamber 1, and helping to extend the service life of the chimney chamber 1. When the slider 9 slides on the slide rod 7, it can compress the first spring 8. The first spring 8 can drive the connecting plate 11 and the exhaust gas treatment device body 2 to reset via the slider 9 and the connecting strip 10.
[0033] In order to reduce the possibility of severe vibration in the main body 2 of the exhaust gas treatment device, such as Figure 2 , Figure 5 and Figure 6 As shown, the buffer mechanism also includes a slide cylinder 15, with a connecting column 18 slidably connected inside the slide cylinder 15. A pressure ring 16 is fixedly connected to the side surface of the connecting column 18. The side surface of the pressure ring 16 slides against the inner wall of the slide cylinder 15. One end of the connecting column 18 extends to the outside of the slide cylinder 15 and is fixedly connected to a push plate 20. The side of the push plate 20 away from the connecting column 18 is fixedly connected to the side of the connecting plate 11 away from the bolt 12. A second spring 19 is sleeved on the side surface of the connecting column 18.
[0034] The pressure ring 16 has multiple through holes 17, which are arranged in a ring array on the pressure ring 16. One end of the second spring 19 is fixedly connected to the side of the slide cylinder 15 away from the mounting plate 5, and the other end of the second spring 19 is fixedly connected to the side of the push plate 20 near the connecting post 18.
[0035] The slide cylinder 15 contains liquid, and a seal is provided between the slide cylinder 15 and the connecting column 18. When the vibration generated by the exhaust gas treatment device body 2 acts on the connecting plate 11, the connecting plate 11 will move. When the connecting plate 11 moves, it can drive the connecting column 18 to retract into the slide cylinder 15. When the connecting column 18 moves, the push plate 20 can compress the second spring 19. The second spring 19 can also drive the connecting plate 11 and the connecting column 18 to reset. In addition, when the connecting column 18 moves, it can also drive the pressure ring 16 to move inside the slide cylinder 15. During the movement of the pressure ring 16, the liquid inside the slide cylinder 15 will flow from one side of the pressure ring 16 to the other side of the pressure ring 16 through the through hole 17. This setting can effectively slow down the movement speed of the connecting column 18 and the connecting plate 11, thereby reducing the possibility of the exhaust gas treatment device body 2 generating violent vibration.
[0036] It should be noted that, in order to improve the service life of connecting ring 4, such as Figure 1 , Figure 2 and Figure 3 As shown, a washer 14 is fitted on the side surface of the bolt 12. One side of the washer 14 is in contact with the side of the connecting ring 4 away from the connecting plate 11, and the other side of the washer 14 is in contact with one side of the nut 13.
[0037] The gasket 14 effectively disperses the pressure generated when the nut 13 is tightened, reducing the possibility of damage to the connecting ring 4 due to excessive local pressure, thereby helping to extend the service life of the connecting ring 4.
[0038] Furthermore, to improve the smoothness of slider 9's movement, such as... Figure 1 , Figure 2 and Figure 4 As shown, a rotating shaft is fixedly connected inside the slider 9, and a roller 21 is rotatably connected to the side surface of the rotating shaft. The side surface of the roller 21 is in contact with the side surface of the slider 7.
[0039] The roller 21 effectively reduces the frictional resistance between the slider 9 and the slide bar 7, improves the smoothness of the slider 9 moving on the slide bar 7, and thus improves the stability and reliability of the entire buffer structure.
[0040] 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 buffer structure for a ship exhaust gas treatment device, comprising a chimney compartment (1), characterized in that: The chimney compartment (1) is equipped with a main body (2) of an exhaust gas treatment device. A connecting groove (3) is provided on the side surface of the main body (2). A connecting ring (4) is fixed inside the connecting groove (3). A buffer mechanism is provided inside the chimney compartment (1). The buffer mechanism includes a mounting plate (5), one side of which is fixedly connected to the inner wall of the chimney chamber (1), and the other side of which is fixedly connected to a mounting block (6). A sliding rod (7) is fixedly connected to the mounting block (6), and a first spring (8) is sleeved on the side surface of the sliding rod (7). A slider (9) is slidably connected to the side surface of the sliding rod (7). A connecting strip (10) is hinged to one side of the slider (9), and a connecting plate (11) is hinged to the end of the connecting strip (10) away from the slider (9). A bolt (12) is fixedly connected to one side of the connecting plate (11).
2. The buffer structure of a ship exhaust gas treatment device according to claim 1, characterized in that: The bolt (12) passes through the connecting ring (4), and a nut (13) is screwed onto the side surface of the bolt (12). One side of the connecting ring (4) is in contact with the side of the connecting plate (11) near the bolt (12).
3. The buffer structure of a ship exhaust gas treatment device according to claim 1, characterized in that: One end of the first spring (8) is fixedly connected to one side of the mounting block (6), and the other end of the first spring (8) is fixedly connected to one side of the slider (9).
4. The buffer structure of a ship exhaust gas treatment device according to claim 1, characterized in that: The buffer mechanism also includes a slide cylinder (15), inside which a connecting column (18) is slidably connected. A pressure ring (16) is fixedly connected to the side surface of the connecting column (18). The side surface of the pressure ring (16) slides against the inner wall of the slide cylinder (15). One end of the connecting column (18) extends to the outside of the slide cylinder (15) and is fixedly connected to a push plate (20). The side of the push plate (20) away from the connecting column (18) is fixedly connected to the side of the connecting plate (11) away from the bolt (12). A second spring (19) is sleeved on the side surface of the connecting column (18).
5. The buffer structure of a ship exhaust gas treatment device according to claim 4, characterized in that: The pressure ring (16) has multiple through holes (17) arranged in a ring array on the pressure ring (16). One end of the second spring (19) is fixedly connected to the side of the slide cylinder (15) away from the mounting plate (5), and the other end of the second spring (19) is fixedly connected to the side of the push plate (20) near the connecting column (18).
6. The buffer structure of a ship exhaust gas treatment device according to claim 1, characterized in that: A washer (14) is fitted on the side surface of the bolt (12). One side of the washer (14) is in contact with the side of the connecting ring (4) away from the connecting plate (11), and the other side of the washer (14) is in contact with the side of the nut (13).
7. The buffer structure of a ship exhaust gas treatment device according to claim 1, characterized in that: The slider (9) is fixedly connected to a rotating shaft inside, and a roller (21) is rotatably connected to the side surface of the rotating shaft. The side surface of the roller (21) is in contact with the side surface of the slide bar (7).