Ultrahigh-pressure ceramic sealing element

Abstract

The utility model discloses an ultrahigh pressure ceramic sealing element which comprises a sealing main body, the sealing main body is provided with a multi-layer nested structure, and the multi-layer nested structure comprises a sealing ring, an elastic buffer layer and a reinforcing protective sleeve from inside to outside in sequence; a plurality of reinforcing ribs are fixedly connected to the interior of the sealing ring; a plurality of through holes are formed in the side wall of the elastic buffer layer; and a plurality of reinforcing ribs are fixedly connected to the outer side wall of the reinforcing protective sleeve. According to the utility model, the sealing main body is arranged, and the sealing main body adopts a multi-layer nested structure of the sealing ring, the elastic buffer layer and the reinforcing protective sleeve, so that the tightness of connection among the layers is ensured; meanwhile, reinforcing ribs are arranged in the sealing ring, so that the strength and stability of the sealing ring can be improved, and the sealing ring is prevented from deforming or being damaged in an ultrahigh-pressure environment; a plurality of through holes are formed in the side wall of the elastic buffer layer, so that the elastic buffer layer can better play a role in buffering; a plurality of reinforcing ribs are arranged on the outer side wall of the reinforcing protective sleeve, the strength and rigidity of the reinforcing protective sleeve are enhanced, and the overall pressure resistance of the sealing piece is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sealing device technical field, concretely relates to a kind of superhigh pressure ceramic sealing parts. BACKGROUND

[0002] In many industrial fields, such as petrochemical industry, aerospace, deep-sea exploration, etc., the equipment often needs to operate under superhigh pressure environment. In these superhigh pressure working conditions, the performance of the sealing part is crucial, as it is directly related to the safe operation, stability and service life of the equipment. Traditional sealing parts have single material, which is difficult to meet the requirements of strength, sealing property, wear resistance and buffering performance under superhigh pressure environment. Although ordinary rubber sealing parts have certain elasticity and sealing property, they are prone to deformation and aging under superhigh pressure, and lack of strength, which cannot work stably for a long time, and may cause medium leakage, affecting the normal operation of the equipment, and even causing safety accidents. Some metal sealing parts have high strength, but poor flexibility and sealing performance, which are also difficult to achieve ideal sealing effect under complex working conditions.

[0003] Based on the above situation, the utility model provides a kind of superhigh pressure ceramic sealing part, which can effectively solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of superhigh pressure ceramic sealing part to overcome the above defects according to the status of prior art.

[0005] The utility model realizes the following technical scheme:

[0006] A kind of superhigh pressure ceramic sealing part, including sealing main body, the sealing main body is equipped with multiple nested structures, from inside to outside in turn, sealing ring, elastic buffer layer and reinforcing protective sleeve;Multiple reinforcing ribs are fixedly connected in the inside of the sealing ring along the axial direction;Multiple evenly distributed through holes are arranged in the side wall of the elastic buffer layer;Multiple reinforcing ribs are fixedly connected on the outer side wall of the reinforcing protective sleeve, and are evenly distributed along the axial direction at equal intervals;Multiple dovetail-shaped protrusions that are evenly distributed at equal angles are arranged on the inner side wall and the outer side wall of the elastic buffer layer, multiple first dovetail grooves that are matched with the dovetail-shaped protrusions are arranged on the outer side wall of the sealing ring, and multiple second dovetail grooves that are matched with the dovetail-shaped protrusions are arranged on the inner side wall of the reinforcing protective sleeve.

[0007] According to the above technical scheme, as a further preferred technical scheme of the above technical scheme, the two ends of the sealing main body are fixedly connected with annular limiting flanges, and multiple connection holes that are evenly distributed at equal angles are arranged on the limiting flanges.

[0008] According to the above technical scheme, as a further preferred technical scheme of the above technical scheme, the sealing ring is made of zirconia ceramic material.

[0009] According to the above technical scheme, as a further preferred technical scheme of the above technical scheme, the elastic buffer layer adopts high-strength rubber material.

[0010] According to the above technical scheme, as a further preferred technical scheme of the above technical scheme, the reinforcing protective sleeve adopts boron carbide ceramic material.

[0011] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0012] The utility model discloses a kind of ultrahigh pressure ceramic sealing parts, by setting sealing body, sealing body adopts the multilayer nesting structure of sealing ring, elastic buffer layer and reinforcing protective sleeve, and is matched with dovetail block and dovetail groove by dovetail convex block, ensure the tightness of connection between each layer;While sealing ring is internally provided with reinforcing rib, the strength and stability of sealing ring can be improved, prevent its deformation or damage under ultrahigh pressure environment;While elastic buffer layer side wall is provided with multiple through holes, can make elastic buffer layer better play buffering effect, when being under pressure, through hole can make material elastically deformed, disperse pressure, and reinforcing protective sleeve outer side wall is provided with multiple reinforcing ribs, the strength and rigidity of reinforcing protective sleeve are strengthened, improve the overall compression resistance of sealing piece. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is overall structure schematic diagram of the utility model;

[0014] Figure 2 It is sealing body explosion schematic diagram of the utility model. DETAILED DESCRIPTION

[0015] In order to make those skilled in the art better understand the technical scheme of the utility model, the preferred embodiment of the utility model is described below in combination with specific embodiments, but it should be understood that the drawings are only for illustrative description, and cannot be understood as the limitation of the patent; in order to better illustrate the embodiment, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of actual product;For those skilled in the art, it is understandable that some well-known structures in the drawings and their description may be omitted.

[0016] An ultrahigh pressure ceramic sealing element, comprising a sealing body 1, which is provided with a multi-layer nested structure, from inside to outside in turn a sealing ring 11, an elastic buffer layer 12 and a reinforcing protective sleeve 13; the inside of the sealing ring 11 is fixedly connected with a plurality of reinforcing ribs 111 in the axial direction; the side wall of the elastic buffer layer 12 is provided with a plurality of uniformly distributed through holes 121; the outer side wall of the reinforcing protective sleeve 13 is fixedly connected with a plurality of reinforcing ribs 131 which are evenly distributed in the axial direction; the inner side wall and the outer side wall of the elastic buffer layer 12 are both provided with a plurality of dovetail-shaped protrusions 122 which are evenly distributed at equal angles, the outer side wall of the sealing ring 11 is provided with a first dovetail groove 112 which is matched with the dovetail-shaped protrusions 122, and the inner side wall of the reinforcing protective sleeve 13 is provided with a second dovetail groove 132 which is matched with the dovetail-shaped protrusions 122.

[0017] The sealing body of the utility model adopts the multi-layer nested structure of the sealing ring 11, the elastic buffer layer 12 and the reinforcing protective sleeve 13, and is matched with the dovetail groove through the dovetail-shaped protrusions 122, thereby ensuring the tightness of the connection between the layers; meanwhile, the sealing ring 11 is provided with the reinforcing ribs 111 inside, so that the strength and stability of the sealing ring 11 can be improved, and the sealing ring 11 can be prevented from deforming or being damaged under the ultrahigh pressure environment; meanwhile, the elastic buffer layer 12 is provided with a plurality of through holes 121 in the side wall, so that the elastic buffer layer 12 can better play the buffering role; when the elastic buffer layer 12 is subjected to pressure, the through holes can make the material elastically deform, disperse the pressure, and the reinforcing protective sleeve 13 is provided with a plurality of reinforcing ribs 131 in the outer side wall, so that the strength and rigidity of the reinforcing protective sleeve 13 are enhanced, and the overall pressure resistance of the sealing element is improved.

[0018] Further, in another embodiment, the two ends of the sealing body 1 are respectively fixedly connected with annular limiting flanges 2, and the limiting flanges 2 are provided with a plurality of connecting holes 21 which are evenly distributed at equal angles.

[0019] Through the limiting flanges 2 and the connecting holes 21, the sealing element can be fixedly matched with the sealing installation part, the position of the sealing element in the axial direction can be accurately determined, axial deviation or misplacement can be avoided, and the sealing function of the sealing element can be ensured.

[0020] Further, in another embodiment, the sealing ring 11 is made of zirconia ceramic material.

[0021] The sealing ring 11 made of zirconia ceramic material has high strength and high hardness, and has good wear resistance and corrosion resistance, so that the shape and performance of the sealing ring 11 can be kept stable under the ultrahigh pressure environment, medium leakage can be effectively prevented, and the sealing effect can be ensured.

[0022] Further, in another embodiment, the elastic buffer layer 12 is made of high-strength rubber material.

[0023] The elastic buffer layer made of high-strength rubber material has good elasticity and flexibility, can buffer pressure in an ultrahigh pressure environment, reduce the impact of pressure on the sealing ring and the reinforcing protective sleeve, and prolong the service life of the sealing element.

[0024] Further, in another embodiment, the reinforcing protective sleeve 13 is made of boron carbide ceramic material.

[0025] The reinforcing protective sleeve made of boron carbide ceramic material has the advantages of high hardness, good wear resistance, and large compressive strength, can provide reliable external protection for the sealing element, prevent the sealing element from being damaged in an ultrahigh pressure and harsh working condition, and enhance the durability and reliability of the sealing element as a whole.

[0026] According to the description and drawings of the utility model, those skilled in the art can easily manufacture or use the utility model of an ultrahigh pressure ceramic sealing element, and the positive effects described in the utility model can be achieved.

[0027] Unless otherwise specified and limited, in the utility model, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", the orientation or positional relationship shown in the drawings is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore the orientation or positional relationship described in the utility model is only used for exemplary description, and cannot be understood as a limitation on the patent, and for those skilled in the art, the specific meaning of the above terms can be understood in combination with the drawings and according to the specific situation.

[0028] Unless otherwise specified and limited, in the utility model, if there are terms such as "setting", "connection" and "connection", they should be understood in a broad sense, for example, they can be fixedly connected, or they can be detachably connected, or integrally connected, they can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific situation.

[0029] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form, and any simple modification, equivalent change of the above embodiment according to the technical essence of the utility model falls within the protection scope of the utility model.

Claims

1. An ultra-high pressure ceramic seal, characterized in that: The system includes a sealing body (1), which has a multi-layer nested structure, consisting of a sealing ring (11), an elastic buffer layer (12), and a reinforcing protective sleeve (13) from the inside out. The sealing ring (11) has multiple reinforcing ribs (111) fixedly connected to its interior along the axial direction. The sidewall of the elastic buffer layer (12) has multiple evenly distributed through holes (121). The outer sidewall of the reinforcing protective sleeve (13) has multiple reinforcing ribs (131) evenly distributed along the axial direction. The inner and outer sidewalls of the elastic buffer layer (12) are provided with multiple dovetail protrusions (122) evenly distributed at equal angles. The outer sidewall of the sealing ring (11) has a first dovetail groove (112) that mates with the dovetail protrusions (122). The inner sidewall of the reinforcing protective sleeve (13) has a second dovetail groove (132) that mates with the dovetail protrusions (122).

2. The ultra-high pressure ceramic seal according to claim 1, characterized in that: The sealing body (1) has ring-shaped limiting flanges (2) fixedly connected to both ends. The limiting flanges (2) have multiple connecting holes (21) evenly distributed at equal angles.

3. The ultra-high pressure ceramic seal according to claim 1, characterized in that: The sealing ring (11) is made of zirconia ceramic.

4. The ultra-high pressure ceramic seal according to claim 1, characterized in that: The elastic buffer layer (12) is made of high-strength rubber.

5. The ultra-high pressure ceramic seal according to claim 1, characterized in that: The reinforced protective sleeve (13) is made of boron carbide ceramic material.

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