Ceramic-based high-temperature sealing ring gasket

Abstract

The utility model belongs to the technical field of ceramic sealing rings, and particularly discloses a ceramic-based high-temperature sealing ring gasket which comprises an annular seat, a buffering cavity is formed in the annular seat, and a buffering piece capable of axially sliding is arranged in the buffering cavity. A first magnetic part is arranged at the bottom end of the buffer part, a second magnetic part matched with the first magnetic part is arranged in the buffer cavity, a magnetic repulsive force buffer structure is formed between the first magnetic part and the second magnetic part, a limiting part is arranged at the bottom end of the buffer part, the outer contour of the limiting part is in an arc shape, and a plurality of limiting grooves are formed between the buffer part and the annular base. A plurality of limiting grooves are formed in the annular seat, a plurality of limiting blocks matched with the annular seat are arranged on the inner side of the annular seat, the limiting grooves are used for limiting circumferential rotation of the buffering piece relative to the annular seat, and the limiting grooves formed in the buffering piece are matched with the limiting blocks on the inner side of the annular seat. Axial impact energy is absorbed, and breakage of the ceramic sealing ring caused by axial force is prevented.

Description

Technical Field

[0001] This application relates to the field of ceramic sealing ring technology, and more specifically, to a ceramic-based high-temperature sealing ring gasket. Background Technology

[0002] Ceramic sealing rings, as key sealing components, are widely used in the mechanical sealing systems of rotating equipment such as pumps and compressors. They form a dynamic sealing interface by tightly fitting with the end face of the stationary ring, effectively preventing media leakage. These sealing rings are typically made of high-hardness, wear-resistant engineering ceramics (such as alumina and silicon carbide), possessing excellent high-temperature resistance and corrosion resistance, making them suitable for harsh operating conditions. During equipment operation, the ceramic sealing ring rotates with the shaft, forming a stable relative sliding friction pair with the working surface of the stationary ring.

[0003] In the dynamic sealing process, the axial movement of the drive motor output shaft is unavoidable, causing axial displacement of both the connected rotating ring and the ceramic sealing ring. When the amount of movement exceeds the design allowable range, the working surface of the ceramic sealing ring will collide hard with the stationary ring. Under repeated impact loads, the ceramic sealing ring is prone to micro-cracks or even fracture failure. Although the ceramic material itself has high wear resistance, frequent axial impacts will significantly shorten its service life and increase maintenance costs. Utility Model Content

[0004] To address the aforementioned issues, this application provides a ceramic-based high-temperature sealing ring gasket.

[0005] The ceramic-based high-temperature sealing ring gasket provided in this application adopts the following technical solution:

[0006] A ceramic-based high-temperature sealing ring gasket includes an annular seat, a buffer cavity inside the annular seat, and an axially sliding buffer element inside the buffer cavity.

[0007] The bottom end of the buffer is provided with a first magnetic element, and the buffer cavity is provided with a second magnetic element that cooperates with the first magnetic element. The first magnetic element and the second magnetic element form a magnetic repulsion buffer structure.

[0008] Through the above technical solution, the setting of the first magnetic component and the second magnetic component to generate magnetic repulsion creates a buffering effect, absorbs axial impact energy, and prevents the ceramic sealing ring from breaking due to axial force.

[0009] Furthermore, a limiting member is provided at the bottom of the buffer component, and the outer contour of the limiting member is arc-shaped.

[0010] With the above technical solution, when the buffer component slides axially in the buffer cavity, the limiting component at its bottom end plays a limiting role, preventing the buffer component from falling out of the buffer cavity.

[0011] Furthermore, multiple limiting grooves are provided between the buffer and the annular seat, and multiple matching limiting blocks are provided on the inner side of the annular seat. The multiple limiting grooves are used to limit the circumferential rotation of the buffer relative to the annular seat.

[0012] Through the above technical solution, the multiple limiting grooves set on the buffer component cooperate with the limiting block on the inner side of the annular seat. During the axial movement of the buffer component, the limiting block is always embedded in the limiting groove, effectively preventing the buffer component from rotating circumferentially.

[0013] Furthermore, a removable plate is provided inside the buffer cavity, and a second magnetic component is located on top of the removable plate.

[0014] Furthermore, the outer end of the detachable plate is fixedly connected to multiple mounting plates, and each mounting plate and the annular seat has corresponding mounting holes.

[0015] Furthermore, bolts are provided inside each pair of corresponding mounting holes, and the detachable plate is connected to the annular seat by multiple bolts.

[0016] With the above technical solution, when maintenance is required, simply remove the bolts to take the entire detachable plate, along with the second magnetic component, out of the buffer cavity, making it convenient to inspect, replace, or adjust the second magnetic component.

[0017] Furthermore, the outer peripheral wall of the annular seat is provided with multiple grooves evenly distributed along the circumference.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] (1) The present invention generates magnetic repulsion through the first magnetic component and the second magnetic component, forming a buffer effect, absorbing axial impact energy, and preventing the ceramic sealing ring from breaking due to axial force.

[0020] (2) The first and second magnetic components of this utility model can be disassembled, and there is no need to replace the entire sealing ring assembly. Only the damaged magnetic components need to be replaced, thus reducing maintenance costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a side view of the present invention;

[0023] Figure 3 This is a plan view of the present invention;

[0024] Figure 4 This is an exploded view of the present invention.

[0025] Explanation of reference numerals in the attached drawings: 1. Annular seat; 2. Buffer component; 3. Groove; 4. Limiting groove; 5. Removable plate; 6. Mounting plate; 7. Bolt; 8. Limiting component; 9. First magnetic component; 10. Second magnetic component; 11. Mounting hole; 12. Buffer cavity. Detailed Implementation

[0026] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0027] Reference Figures 1-4 A ceramic-based high-temperature sealing ring gasket includes an annular seat 1, a buffer cavity 12 inside the annular seat 1, and a buffer member 2 that can slide axially inside the buffer cavity 12.

[0028] The bottom end of the buffer member 2 is provided with a first magnetic member 9, and the buffer cavity 12 is provided with a second magnetic member 10 that cooperates with the first magnetic member 9. A magnetic repulsion buffer structure is formed between the first magnetic member 9 and the second magnetic member 10.

[0029] During the operation of pumps or compressors, when the drive motor rotates the shaft, axial movement occurs due to mechanical vibration, fluid pressure fluctuations, or bearing clearance. The annular seat 1 connected to the shaft undergoes axial displacement, causing the buffer element 2 in the buffer chamber 12 to move. A first magnetic element 9, fixed to the bottom of the buffer element 2, approaches a second magnetic element 10 within the buffer chamber 12. The two magnetic elements, with their like poles facing each other, generate magnetic repulsion. This magnetic repulsion increases with axial displacement, creating a buffering effect that absorbs axial impact energy and prevents the ceramic sealing ring from shattering due to axial force.

[0030] Reference Figures 1-2 The bottom end of the buffer 2 is provided with a limiting member 8. The outer contour of the limiting member 8 is arc-shaped. Multiple limiting grooves 4 are provided between the buffer 2 and the annular seat 1. Multiple matching limiting blocks are provided on the inner side of the annular seat 1. The multiple limiting grooves 4 are used to limit the circumferential rotation of the buffer 2 relative to the annular seat 1.

[0031] When the buffer 2 slides axially within the buffer cavity 12, the limiting member 8 at its bottom end acts as a limiting element to prevent the buffer 2 from coming out of the buffer cavity 12.

[0032] When the limiting member 8 and the first magnetic member 9 need to be removed and replaced, they can be removed from the buffer cavity 12 by manual operation. Since the limiting member 8 adopts an elastic arc-shaped structure design, its arc-shaped outer contour can undergo elastic deformation during the removal process, thereby reducing the contact resistance with the inner wall of the buffer cavity 12, so that the limiting member 8 can pass smoothly through the opening of the buffer cavity 12 and be disassembled.

[0033] The force applied during extraction must be greater than the maximum axial force generated during the buffering process to ensure that the limiting component 8 will not accidentally come out of the buffer cavity 12 under normal working conditions.

[0034] The multiple limiting grooves 4 provided on the buffer 2 cooperate with the limiting blocks on the inner side of the annular seat 1. During the axial movement of the buffer 2, the limiting blocks are always fitted into the limiting grooves 4, effectively preventing the buffer 2 from rotating circumferentially and ensuring that the first magnetic component 9 and the second magnetic component 10 always maintain the correct relative position relationship.

[0035] Reference Figures 2-4 The buffer cavity 12 is provided with a detachable plate 5. The second magnetic component 10 is set on the top of the detachable plate 5. Multiple mounting plates 6 are fixedly connected to the outer end of the detachable plate 5. The multiple mounting plates 6 and the annular seat 1 are provided with corresponding mounting holes 11. Bolts 7 are provided inside each pair of corresponding mounting holes 11. The detachable plate 5 and the annular seat 1 are connected by multiple bolts 7.

[0036] When maintenance or replacement of the second magnetic component 10 is required, the detachable plate 5 is detachably connected to the ring seat 1 via multiple mounting plates 6 connected to its outer end.

[0037] Specifically, the mounting holes 11 on the mounting plate 6 and the annular seat 1 are fastened together by bolts 7 to form a stable assembly structure.

[0038] Under normal operating conditions, this connection method ensures that the detachable plate 5 is firmly fixed in the buffer cavity 12, so that the second magnetic element 10 located on top of it remains in the working position.

[0039] When maintenance is required, simply remove bolt 7 to remove the entire removable plate 5 along with the second magnetic component 10 from the buffer cavity 12, making it easy to inspect, replace or adjust the second magnetic component 10.

[0040] Reference Figures 1-2 The outer peripheral wall of the annular seat 1 is provided with multiple grooves 3 evenly distributed along the circumference.

[0041] Working Principle: During equipment operation, when the drive motor rotates the shaft, mechanical vibration and fluid pressure fluctuations cause axial movement of the shaft. The annular seat 1, rigidly connected to the shaft, subsequently undergoes axial displacement, pushing the buffer element 2 within the buffer cavity 12 to slide axially. The first magnetic element 9 at the bottom of the buffer element 2 and the second magnetic element 10 fixed to the detachable plate 5 form a magnetic pair with opposite poles. As the axial displacement increases, the distance between the two magnetic elements decreases, and the resulting magnetic repulsion force exhibits non-linear enhancement, effectively absorbing and buffering axial impact energy, preventing the ceramic sealing ring from shattering due to axial force.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A ceramic-based high-temperature seal ring gasket, characterized by, Include: Annular seat (1), the annular seat (1) is provided with buffer cavity (12) inside, buffer piece (2) axially sliding is arranged in buffer cavity (12); The bottom end of the buffer piece (2) is provided with a first magnetic member (9), and the buffer cavity (12) is provided with a second magnetic member (10) matched with the first magnetic member (9), and the magnetic repulsion buffer structure is formed between the first magnetic member (9) and the second magnetic member (10).

2. A ceramic-based high-temperature seal ring gasket according to claim 1, wherein: The bottom end of the buffer piece (2) is provided with a limiting member (8), and the outer contour of the limiting member (8) is arranged in an arc shape.

3. The ceramic-based high-temperature seal ring gasket of claim 1, wherein: A plurality of limiting grooves (4) are arranged between the buffer piece (2) and the annular seat (1), and the inner side of the annular seat (1) is provided with a plurality of limiting blocks matched therewith, and the plurality of limiting grooves (4) are used to limit the circumferential rotation of the buffer piece (2) relative to the annular seat (1).

4. The ceramic-based high-temperature seal ring gasket of claim 1, wherein: The buffer cavity (12) is provided with a detachable plate (5), and the second magnetic member (10) is arranged on the top of the detachable plate (5).

5. A ceramic-based high-temperature seal ring gasket according to claim 4, wherein: The outer end of the detachable plate (5) is fixedly connected with a plurality of mounting plates (6), and a plurality of mounting holes (11) are formed in the inner side of the annular seat (1).

6. A ceramic-based high-temperature seal ring gasket according to claim 5, wherein: Each two corresponding mounting holes (11) are provided with a bolt (7) inside, and the detachable plate (5) and the annular seat (1) are connected through a plurality of bolts (7).

7. The ceramic-based high-temperature seal ring gasket of claim 1, wherein: The outer peripheral wall of the annular seat (1) is provided with a plurality of grooves (3) uniformly distributed along the circumference.

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