Perfluoroether sealing element resistant to chemical corrosion

Abstract

The utility model discloses a perfluoroether sealing element with chemical corrosion resistance, which relates to the technical field of sealing elements, and comprises a sealing ring, a first corrugated groove is arranged on the ring side of the sealing ring, a plurality of compression hole channels are arranged in the sealing ring, and the compression hole channels are distributed in the sealing ring. Sealing lips are fixed to the edges of the inner diameter and the outer diameter of the end faces of the two sides of the sealing ring, the sealing ring is composed of a perfluoroether layer and a silicon rubber layer, and the silicon rubber layer is located in the perfluoroether layer in a filling mode; the utility model relates to a perfluoroether seal resistant to chemical corrosion. Through the perfluoroether layer, the silicone rubber layer, the first corrugated groove and the like, the traditional hardness of the sealing ring is changed, the sealing ring with elasticity is formed through the silicone rubber layer, the first corrugated groove and the like, the sealing effect of the sealing ring is improved, and the elasticity of the sealing ring is improved.

Description

Technical Field

[0001] This utility model relates to the field of sealing technology, specifically to a perfluoroether seal that is resistant to chemical corrosion. Background Technology

[0002] Sealing rings are common sealing components. They are placed at pipe connections and deformed by the compression of the pipe to form a seal.

[0003] Traditional sealing rings are susceptible to corrosion from the liquids transported in the pipeline, especially in chemical pipelines where surface corrosion is severe, leading to surface damage and affecting the sealing effect. In addition, sealing rings that are resistant to chemical properties have high hardness, resulting in poor elasticity and affecting the overall sealing effect. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a perfluoroether seal resistant to chemical corrosion, thus solving the problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a chemical corrosion resistant perfluoroether seal, comprising a sealing ring, wherein a first corrugated groove is provided on the circumferential side of the sealing ring, and a compression channel is provided inside the sealing ring, wherein a plurality of the compression channels are distributed within the sealing ring, and sealing lips are fixed on the inner and outer diameter edges of the two end faces of the sealing ring, wherein the sealing ring is composed of a perfluoroether layer and a silicone rubber layer, and the silicone rubber layer is filled inside the perfluoroether layer.

[0006] Furthermore, compression rings are fixedly connected to both end faces of the sealing ring, and multiple compression rings are provided, which are distributed at the upper and lower edges of both end faces of the sealing ring.

[0007] Furthermore, the sealing ring has second corrugated grooves on both end faces, and the second corrugated grooves are located in the middle of the upper and lower extrusion rings.

[0008] Furthermore, a guide groove is provided on the outer edge of the sealing lip, and the guide groove is inclined at an angle of 45°.

[0009] Furthermore, the extrusion ring has a clearance perforation inside.

[0010] Furthermore, the compression channels are arranged in a regular hexagon and are distributed in an array within the sealing ring.

[0011] This invention provides a perfluoroether seal resistant to chemical corrosion. Compared with the prior art, it has the following advantages:

[0012] This chemically resistant perfluoroether seal, through the perfluoroether layer, silicone rubber layer, and first corrugated groove, changes the traditional rigid seal ring. The silicone rubber layer and first corrugated groove form a more elastic seal ring, which not only increases the sealing effect of the seal ring, but also improves the elasticity of the seal ring. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of a partial cross-section of the sealing ring of this utility model;

[0015] Figure 3 for Figure 1 Enlarged structural diagram at point A;

[0016] Figure 4 for Figure 2 Enlarged structural diagram at point B.

[0017] In the diagram: 1. Sealing ring; 101. Perfluoroether layer; 102. Silicone rubber layer; 2. Compression channel; 3. First corrugated groove; 4. Second corrugated groove; 5. Extrusion ring; 6. Relief perforation; 7. Sealing lip; 8. Guide groove. Detailed Implementation

[0018] 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.

[0019] Please see Figure 1-4This utility model provides a technical solution: a perfluoroether seal resistant to chemical corrosion, comprising a sealing ring 1, a first corrugated groove 3 on the circumferential side of the sealing ring 1, compression channels 2 inside the sealing ring 1, multiple compression channels 2 distributed within the sealing ring 1, and sealing lips 7 fixed to the inner and outer diameter edges of the two end faces of the sealing ring 1. The sealing ring 1 is composed of a perfluoroether layer 101 and a silicone rubber layer 102, with the silicone rubber layer 102 filling the interior of the perfluoroether layer 101. The sealing ring 1 consists of an outer layer and an inner layer, wherein the outer layer is the perfluoroether layer 101. The perfluoroether layer 101 provides resistance to chemical corrosion, resulting in better overall stability in use. The fluoroether layer 101 is internally wrapped with a silicone rubber layer 102, which forms an internal support. The silicone rubber layer 102 is elastic, making the whole more flexible and resilient during use. A first corrugated groove 3 is formed on the circumferential side of the sealing ring 1. The first corrugated groove 3 can increase the overall elasticity. Its uneven surface can form multiple dense abutting contact surfaces, thereby achieving a better sealing effect and increasing the overall elasticity of the sealing ring 1. At the same time, sealing lips 7 are fixed on the edge of both end faces of the sealing ring 1. The sealing lips 7 can also increase the elasticity of the edge of the sealing ring 1, and the protruding sealing lips 7 also increase the overall sealing performance of the sealing ring 1.

[0020] like Figure 3 As shown, compression rings 5 ​​are fixedly connected to both end faces of the sealing ring 1. Multiple compression rings 5 ​​are provided and distributed at the upper and lower edges of both end faces of the sealing ring 1. The compression rings 5 ​​are fixed on both end faces of the sealing ring 1. Multiple compression rings 5 ​​can form multiple compression surfaces, thereby achieving multiple sealing surfaces and improving the overall sealing performance.

[0021] like Figure 4 As shown, the sealing ring 1 has a second corrugated groove 4 on both ends. The second corrugated groove 4 is located in the middle of the extrusion ring 5 at the upper and lower ends. The second corrugated groove 4 is opened on both ends of the sealing ring 1. The same effect is achieved on both ends of the sealing ring 1. While forming a seal, it can also increase the overall flexibility and elasticity of the sealing ring 1.

[0022] like Figure 4 As shown, a guide groove 8 is provided on the outer edge of the sealing lip 7. The guide groove 8 is inclined at an angle of 45°. When the sealing ring 1 is installed as a whole, it can be easily installed and fixed through the guide groove 8 on the outer side. The 45° setting allows the surfaces on both sides of the corner to contact and abut against the connecting surface.

[0023] As shown in the figure, a clearance hole 6 is provided inside the extrusion ring 5; the clearance hole 6 is provided through the entire extrusion ring 5, and the extrusion ring 5 can be more elastic through the clearance hole 6, and the extrusion ring 5 can be more easily deformed when compressed.

[0024] like Figure 4 As shown, the compression channels 2 are arranged in a regular hexagon and are arranged in an array within the sealing ring 1; the regular hexagonal arrangement of the compression channels 2 can provide stable support, and the sealing ring 1 can provide clearance space through the regular hexagonal compression channels 2 when it is compressed.

Claims

1. A chemically resistant perfluoroether seal comprising a seal ring (1), characterized in that, The ring side of the sealing ring (1) is provided with a first corrugated groove (3), the inside of the sealing ring (1) is provided with a compression channel (2), a plurality of compression channels (2) are distributed in the sealing ring (1), the inner and outer diameter edges of the two side end faces of the sealing ring (1) are fixedly provided with sealing lips (7), the sealing ring (1) is composed of a perfluoroether layer (101) and a silicone rubber layer (102), and the silicone rubber layer (102) is filled and arranged inside the perfluoroether layer (101).

2. A chemically resistant perfluoroether seal in accordance with claim 1, wherein, The two side end faces of the sealing ring (1) are fixedly connected with extrusion rings (5), the number of the extrusion rings (5) is multiple, and the extrusion rings (5) are arranged at the upper and lower edge positions of the two side end faces of the sealing ring (1).

3. A chemically resistant perfluoroether seal in accordance with claim 2, wherein, The two side end faces of the sealing ring (1) are provided with second corrugated grooves (4), and the second corrugated grooves (4) are arranged in the middle of the extrusion rings (5) at the upper and lower ends.

4. A chemically resistant perfluoroether seal in accordance with claim 2, wherein, The outer edge of the sealing lip (7) is provided with a guide groove (8), the guide groove (8) is inclined, and the inclination angle is 45°.

5. A chemically resistant perfluoroether seal in accordance with claim 2 wherein, The inside of the extrusion ring (5) is provided with a let-out hole (6).

6. A chemically resistant perfluoroether seal in accordance with claim 2 wherein, The compression channel (2) is a regular hexagon, and is arranged in an array in the sealing ring (1).

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