An embedded seal assembly for an antioxidant silicon carbide seal ring

Abstract

The utility model relates to the technical field of sealing ring, concretely relates to a kind of embedded sealing assembly of antioxidant silicon carbide sealing ring.It includes sealing ring body, still including the inner ring soft ring of being located at the inner wall place of sealing ring body, inner ring soft ring inside is equipped with inner ring ring groove, several abutting devices are equipped in inner ring ring groove.Including the several inner limit plate that the inner ring wall on the inside of inner ring ring groove is evenly distributed in circumferential direction, the several outer limit plate that the outer ring wall on the inside of inner ring ring groove is evenly distributed in circumferential direction is correspondingly, and the spring is fixed to the abutment between each corresponding inner limit plate and outer limit plate.The whole design is sealed by multilayer protection and unique structure design, so that the sealing ring can still maintain excellent sealing performance under extreme conditions such as high temperature, high pressure, and due to the use of antioxidant silicon carbide material, the ability of corrosion resistance and oxidation resistance is also significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring technology, and more specifically, to an embedded sealing assembly of an anti-oxidation silicon carbide sealing ring. Background Technology

[0002] In the field of sealing ring technology, especially under conditions of high temperature, high pressure, and corrosive media, traditional sealing materials often fail to meet the requirements for long-term stable operation. With the development of industrial technology, the demand for sealing solutions that can perform stably in extreme environments is increasing. While traditional sealing materials such as rubber or polymer-based sealing rings perform well under some conventional operating conditions, their physical properties deteriorate rapidly in high-temperature or chemically corrosive environments, leading to seal failure. In contrast, sealing rings using antioxidant silicon carbide as the base material can provide a durable sealing effect under more severe conditions. Furthermore, with a reasonable structural design, they can achieve a certain degree of self-adjustment to adapt to changes in operating conditions, thereby improving overall sealing performance and reliability. Existing spring-type sealing structures often employ localized spring designs, which can easily lead to uneven radial force on the sealing ring. Especially under high-temperature conditions, the difference in material expansion further exacerbates local gaps, making it difficult to achieve a complete seal. In addition, since traditional sealing rings typically lack self-adjusting capabilities, it is difficult to adjust them in a timely manner according to changes in operating conditions after installation, which also limits their application in complex operating conditions. Utility Model Content

[0003] The purpose of this utility model is to provide an embedded sealing component with an anti-oxidation silicon carbide sealing ring, in order to solve the problem that in the actual use of traditional sealing materials, the sealing ring cannot fit tightly against the installed equipment, resulting in a certain gap at the connection between the sealing ring and the installed equipment, which leads to poor sealing performance of the sealing ring, which is not conducive to practical use, and the sealing material is prone to failure in high temperature, high pressure and corrosive media environments.

[0004] To achieve the above objectives, an embedded sealing assembly of an anti-oxidation silicon carbide sealing ring is provided, including a sealing ring body and an inner ring soft ring disposed on the inner wall of the sealing ring body. The inner ring soft ring has an inner ring groove inside, and a plurality of abutting devices are disposed in the inner ring groove.

[0005] As a further improvement to this technical solution, the clamping device includes several inner limiting plates evenly distributed circumferentially on the inner wall of the inner ring groove, and several outer limiting plates evenly distributed circumferentially on the outer wall of the inner ring groove. Each corresponding inner limiting plate and outer limiting plate is fixedly clamped by a spring, and all springs have the same preload. The radial preload is provided by the circumferentially evenly distributed springs, so that each part of the inner ring soft ring is evenly fitted to the sealing surface. The adjustable spring preload design ensures dynamic compensation of deformation under different working conditions and maintains consistent sealing pressure.

[0006] As a further improvement to this technical solution, an inner ring sealing gasket is fixedly connected to the middle of the outer ring of the inner soft ring, and the inner ring sealing gasket is sealed and fitted onto the sealing ring body.

[0007] As a further improvement to this technical solution, a wear-resistant layer is fixedly connected to the outer ring wall of the sealing ring body.

[0008] As a further improvement to this technical solution, an upper ring gasket is fitted onto the upper end of the outer ring wall of the wear-resistant layer, and a lower ring gasket is fitted onto the lower end of the outer ring wall of the wear-resistant layer.

[0009] As a further improvement to this technical solution, an upper ring sealing gasket is fixedly connected to the middle of the inner ring of the upper ring gasket, and a lower ring sealing gasket is fixedly connected to the middle of the inner ring of the lower ring gasket.

[0010] As a further improvement to this technical solution, the diameter of the upper ring gasket is the same as that of the lower ring gasket, and the diameters of the upper and lower ring gaskets are larger than the diameter of the sealing ring body.

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

[0012] 1. In the embedded sealing assembly of this anti-oxidation silicon carbide sealing ring, an inner soft ring and an inner ring groove are set on the inner wall of the sealing ring, and a spring-loaded clamping device is built in. This allows the sealing ring to automatically adapt to changes in the working environment and maintain tight contact, thereby improving sealing performance. Simultaneously, the combination design of the wear-resistant layer and the upper and lower ring gaskets not only enhances the wear resistance of the sealing ring body but also adds multiple layers of sealing protection, ensuring long-term stable operation under harsh conditions such as high temperature and high pressure.

[0013] 2. In the embedded sealing assembly of this anti-oxidation silicon carbide sealing ring, anti-oxidation silicon carbide is used as the main material of the sealing ring, which can effectively resist oxidation under high temperature environment and prevent the deterioration of material performance. In addition, the design of the inner ring sealing gasket and the outer ring wear-resistant layer further enhances the sealing ring's ability to resist chemical corrosion, enabling it to maintain good sealing performance in corrosive media such as strong acids and strong alkalis, thus extending the service life of the sealing ring. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the partial segmentation structure of the upper ring gasket and the lower ring gasket of this utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the inner soft ring portion of this utility model.

[0017] The meanings of the labels in the diagram are as follows:

[0018] The components are: 1. Sealing ring body; 2. Wear-resistant layer; 3. Upper ring gasket; 4. Lower ring gasket; 5. Upper ring sealing gasket; 6. Lower ring sealing gasket; 7. Inner ring sealing gasket; 8. Inner ring soft ring; 9. Inner ring groove; 10. Inner limiting plate; 11. Clamping device; 12. Outer limiting plate; 13. Spring. 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] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0022] Please see Figures 1-3As shown, the purpose of this embodiment is to provide an embedded sealing assembly of an anti-oxidation silicon carbide sealing ring, including a sealing ring body 1 and an inner ring soft ring 8 disposed on the inner wall of the sealing ring body 1. The inner ring soft ring 8 has an inner ring groove 9 inside, and a plurality of pressing devices 11 are provided in the inner ring groove 9. The pressing devices 11 include a plurality of inner limiting plates 10 evenly distributed circumferentially on the inner ring wall inside the inner ring groove 9, and a plurality of outer limiting plates 12 evenly distributed circumferentially on the outer ring wall inside the inner ring groove 9. Each corresponding inner limiting plate 10 and outer limiting plate 12 is fixedly abutted by a spring 13, and all springs 13 have the same preload. The radial preload is provided by the circumferentially evenly distributed springs 13, so that each part of the inner ring soft ring 8 is evenly attached to the sealing surface. The adjustable spring preload design ensures dynamic compensation of deformation under different working conditions and maintains consistent sealing pressure. An inner ring sealing gasket 7 is fixedly connected to the middle of the outer ring of the inner ring soft ring 8, and the inner ring sealing gasket 7 is sealed and fitted onto the sealing ring body 1.

[0023] A wear-resistant layer 2 is fixedly connected to the outer ring wall of the sealing ring body 1. An upper ring gasket 3 is sleeved on the upper end of the outer ring wall of the wear-resistant layer 2, and a lower ring gasket 4 is sleeved on the lower end of the outer ring wall of the wear-resistant layer 2. An upper ring sealing gasket 5 is fixedly connected to the middle of the inner ring of the upper ring gasket 3, and a lower ring sealing gasket 6 is fixedly connected to the middle of the inner ring of the lower ring gasket 4. The diameter of the upper ring gasket 3 is the same as the diameter of the lower ring gasket 4, and the diameters of the upper ring gasket 3 and the lower ring gasket 4 are larger than the diameter of the sealing ring body 1.

[0024] The embedded sealing assembly of this anti-oxidation silicon carbide sealing ring comprises multiple components working collaboratively to achieve optimized sealing performance. Firstly, the core of the entire sealing ring is a sealing ring body 1 made of anti-oxidation silicon carbide material. This material, due to its excellent heat resistance, wear resistance, and oxidation resistance, is ideal for high-temperature and high-pressure environments. To further improve the sealing performance of the sealing ring body 1, an inner soft ring 8 is provided on its inner wall. The inner soft ring 8 is not only flexible but also possesses a certain degree of elasticity and resilience, enabling it to adapt to minor unevenness on the sealing surface and increasing the reliability of the seal. The inner soft ring 8 has an inner ring groove 9, within which several clamping devices 11 are arranged. Each clamping device 11 includes an inner limiting plate 10 fixed to the inner wall of the inner ring groove 9 and an outer limiting plate 12 corresponding to the outer ring wall, with a spring 13 sandwiched between them. This design allows the sealing ring to automatically adjust its fit with the sealing surface through the action of the spring 13 when subjected to changes in external pressure, maintaining a good sealing state.

[0025] An inner ring sealing gasket 7 is fixedly connected to the middle of the outer ring of the inner ring soft ring 8. The inner ring sealing gasket 7 is fitted onto the sealing ring body 1, which not only strengthens the sealing performance between the inner ring soft ring 8 and the sealing ring body 1, but also provides better support for the inner ring soft ring 8, preventing deformation under high pressure. To improve the wear resistance of the entire sealing ring body 1, a wear-resistant layer 2 is fixedly connected to its outer ring wall. The presence of the wear-resistant layer 2 greatly reduces the risk of wear when the sealing ring body 1 comes into contact with hard external objects, extending the service life of the sealing ring. An upper ring gasket 3 and a lower ring gasket 4 are respectively fitted onto the upper and lower ends of the outer ring wall of the wear-resistant layer 2. These two gaskets not only help to disperse external pressure, but also provide installation positions for the upper ring sealing gasket 5 and the lower ring sealing gasket 6. These two sets of sealing gaskets further enhance the sealing capability of the sealing ring, especially under radial loads, effectively preventing leakage.

[0026] In summary, by rationally configuring the above components, the embedded sealing assembly of the anti-oxidation silicon carbide sealing ring provided by this utility model can not only maintain excellent sealing performance under high temperature and high pressure environment, but also effectively resist wear and chemical corrosion, significantly improving the service life of the sealing ring.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An embedded sealing assembly of an anti-oxidation silicon carbide sealing ring, comprising a sealing ring body (1), characterized in that: It also includes an inner soft ring (8) located on the inner wall of the sealing ring body (1), the inner soft ring (8) having an inner ring groove (9) inside, and a plurality of abutting devices (11) inside the inner ring groove (9).

2. The embedded sealing assembly of the anti-oxidation silicon carbide sealing ring according to claim 1, characterized in that: The clamping device (11) includes several inner limiting plates (10) evenly distributed circumferentially on the inner wall of the inner ring groove (9), and several outer limiting plates (12) evenly distributed circumferentially on the outer wall of the inner ring groove (9). Each corresponding inner limiting plate (10) and outer limiting plate (12) is fixedly clamped by a spring (13), and all springs (13) have the same preload. The radial preload is provided by the circumferentially evenly distributed springs (13), so that each part of the inner ring soft ring (8) fits evenly against the sealed surface. The adjustable spring preload design ensures dynamic compensation of deformation under different working conditions and maintains consistent sealing pressure.

3. The embedded sealing assembly of the anti-oxidation silicon carbide sealing ring according to claim 1, characterized in that: The inner ring soft ring (8) is fixedly connected to the middle of the outer ring with an inner ring sealing gasket (7), and the inner ring sealing gasket (7) is sealed and fitted onto the sealing ring body (1).

4. The embedded sealing assembly of the anti-oxidation silicon carbide sealing ring according to claim 1, characterized in that: The outer ring wall of the sealing ring (1) is fixedly connected with a wear-resistant layer (2).

5. The embedded sealing assembly of the anti-oxidation silicon carbide sealing ring according to claim 4, characterized in that: The upper end of the outer ring wall of the wear-resistant layer (2) is fitted with an upper ring gasket (3), and the lower end of the outer ring wall of the wear-resistant layer (2) is fitted with a lower ring gasket (4).

6. The embedded sealing assembly of the antioxidant silicon carbide sealing ring according to claim 5, characterized in that: The upper ring gasket (3) has an upper ring sealing gasket (5) fixedly connected to the middle of its inner ring, and the lower ring gasket (4) has a lower ring sealing gasket (6) fixedly connected to the middle of its inner ring.

7. The embedded sealing assembly of the antioxidant silicon carbide sealing ring according to claim 5, characterized in that: The diameter of the upper ring gasket (3) is the same as the diameter of the lower ring gasket (4), and the diameters of the upper ring gasket (3) and the lower ring gasket (4) are larger than the diameter of the sealing ring body (1).

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