Stainless steel flange sealing structure

Abstract

The utility model relates to the field of stainless steel flange, concretely relates to a stainless steel flange sealing structure, including flange plate, the outer wall fixedly connected with the docking station of flange plate, sealing groove, the inner wall of docking station is opened in sealing groove, the inside of sealing groove is provided with sealing mechanism and auxiliary mechanism, sealing mechanism, sealing mechanism includes sealing ring. Through the intermeshing of transverse groove and horizontal convex strip can limit the sealing ring, make the inner ring of sealing ring tightly card in the inner wall of sealing groove, utilize the damping strip of '' S '' shape can make sealing ring in clockwise or is anticlockwise direction all obtains effective restriction, has improved the friction between sealing ring outer wall and sealing groove, thereby further improved the stability of sealing ring, effectively avoided the displacement of sealing ring in the inside of sealing groove, thereby avoided the relative friction between sealing rings, improved the service life of sealing ring.

Description

Technical Field

[0001] This utility model relates to the field of stainless steel flanges, and specifically to a stainless steel flange sealing structure. Background Technology

[0002] Stainless steel flanges are pipe fittings made of stainless steel and are widely used in many industrial fields such as petroleum, chemical, water conservancy, and power. They typically have a disc-shaped structure with several evenly distributed bolt holes for connection. They achieve a secure connection between different pipes by welding or threading to the pipe end.

[0003] During the connection of stainless steel flanges, ensuring sealing performance is crucial, and this key role is often played by the sealing rings on the corresponding surfaces. When two flanges are fastened together with bolts, the sealing rings placed between the flange sealing surfaces fill any tiny gaps that may exist on the contact surfaces, thereby blocking the leakage channels of fluid in the pipeline and achieving a reliable sealing effect.

[0004] However, once the flange connection is completed and put into use, the flow of fluid (especially liquid) within the pipeline will cause a certain degree of vibration. This vibration is transmitted to the flange connection, making it easy for the originally tightly fitted sealing rings to move relative to each other. Over time, this relative movement between the sealing rings will translate into continuous friction, which will not only wear down the surface structure of the sealing rings but may even change their original shape and compression state, thereby gradually reducing the sealing performance of the sealing rings and posing a risk of leakage. Therefore, it is necessary to invent a stainless steel flange sealing structure to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a stainless steel flange sealing structure. By setting a transverse groove and a transverse convex strip, the problem of displacement caused by vibration of the sealing ring is solved. Furthermore, the use of an "S"-shaped damping strip can greatly increase the friction between the sealing ring and the sealing groove, thereby further improving the stability of the sealing ring, reducing the impact of fluid vibration on the sealing ring, and increasing the service life of the sealing ring.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a stainless steel flange sealing structure, comprising...

[0007] A flange, the outer wall of which is fixedly connected to a mating platform;

[0008] A sealing groove is formed on the inner wall of the docking platform, and a sealing mechanism and an auxiliary mechanism are provided inside the sealing groove;

[0009] A sealing mechanism includes a sealing ring, which is fixedly connected to the inner wall of a sealing groove. A limit ring is fixedly connected to the side of the sealing ring near the flange. A transverse protrusion is fixedly connected to the inner wall of the sealing ring. A transverse groove matching the transverse protrusion is formed on the inner wall of the sealing groove.

[0010] Preferably, the auxiliary mechanism includes a spherical cam, which is fixedly connected to the side wall of the sealing ring.

[0011] Preferably, the sidewall of the sealing ring has a spherical groove that matches the spherical convex disc.

[0012] Preferably, the spherical protrusions and spherical grooves are arranged equidistantly and alternately on the sidewall of the sealing ring.

[0013] Preferably, a damping strip is fixedly connected to the outer wall of the sealing ring, and the damping strip has an "S" shaped structure.

[0014] Preferably, the transverse protrusions are provided in multiple sets, and the multiple sets of transverse protrusions are arranged in a circumferential array on the inner wall of the sealing ring with the center of the sealing ring as the origin.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] This invention utilizes the interlocking of a transverse groove and a transverse convex strip to limit the sealing ring, ensuring the inner ring of the sealing ring is tightly clamped to the inner wall of the sealing groove. Simultaneously, the "S"-shaped damping strip effectively restricts the sealing ring's rotation in both clockwise and counterclockwise directions, increasing the friction between the outer wall of the sealing ring and the sealing groove. This further enhances the stability of the sealing ring, effectively preventing displacement within the sealing groove and thus avoiding relative friction between the sealing rings, extending their service life. Furthermore, the cooperation between the spherical convex disc and the spherical groove maintains a stable mating state for the sealing rings on the two sets of flanges, preventing relative movement and further improving the stability of the sealing rings, effectively preventing friction between them. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the present invention.

[0020] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0021] Figure 4 This utility model Figure 2 A magnified structural diagram at point A;

[0022] Figure 5 This utility model Figure 3 A magnified structural diagram at point B.

[0023] Legend:

[0024] 1. Flange; 11. Docking platform; 2. Sealing groove; 3. Sealing mechanism; 31. Sealing ring; 32. Limiting ring; 33. Transverse convex strip; 34. Transverse groove; 35. Damping strip; 4. Auxiliary mechanism; 41. Spherical convex plate; 42. Spherical groove. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This utility model provides, for example Figure 1 - Figure 3 The stainless steel flange sealing structure shown includes a flange 1, a sealing groove 2 and a sealing mechanism 3. A mating platform 11 is fixedly connected to the outer wall of the flange 1. When two flanges 1 are mated together, the mating platforms 11 need to be fitted together first. The sealing groove 2 is opened on the inner wall of the mating platform 11. The sealing mechanism 3 and the auxiliary mechanism 4 are arranged inside the sealing groove 2.

[0027] like Figure 2 - Figure 4 As shown, the sealing mechanism 3 includes a sealing ring 31, which is fixedly connected to the inner wall of the sealing groove 2. The deformation of the sealing ring 31 can fill the small gap between the two sets of flanges 1, thereby sealing the connection between the two sets of flanges 1. A limiting ring 32 is fixedly connected to the side of the sealing ring 31 near the flange 1. The limiting ring 32 can limit the sealing ring 31 inside the sealing groove 2. A transverse protrusion 33 is fixedly connected to the inner wall of the sealing ring 31. Multiple sets of transverse protrusions 33 are arranged in a circumferential array with the center of the sealing ring 31 as the origin. A transverse groove 34 matching the transverse protrusions 33 is opened on the inner wall of the sealing groove 2. The transverse groove 34 can limit the transverse protrusions 33, so that the transverse protrusions 33 and the transverse groove 34 mesh together.

[0028] like Figure 4 - Figure 5As shown, the auxiliary mechanism 4 includes a spherical cam 41, which is fixedly connected to the side wall of the sealing ring 31. The side wall of the sealing ring 31 has a spherical groove 42 that matches the spherical cam 41. By inserting the spherical cam 41 into the spherical groove 42, the stability between the two sets of sealing rings 31 can be improved. The spherical cam 41 and the spherical groove 42 are arranged alternately and equidistantly on the side wall of the sealing ring 31. By interlocking the spherical cam 41 and the spherical groove 42, the sealing rings 31 on the two sets of flanges 1 can be kept in a stable docking state, and the relative movement of the sealing rings 31 can be avoided.

[0029] like Figure 5 As shown, a damping strip 35 is fixedly connected to the outer wall of the sealing ring 31. The damping strip 35 has an "S" shaped structure. The "S" shaped damping strip 35 effectively restricts the sealing ring 31 in both clockwise and counterclockwise directions, thereby increasing the friction between the outer wall of the sealing ring 31 and the sealing groove 2, and further improving the stability of the sealing ring 31.

[0030] The working principle of this utility model is as follows: During docking, the mating surfaces 11 of the two flanges 1 are pressed together, and the two sets of flanges 1 are locked together using bolts. During use, the transverse groove 34 can limit the transverse protrusion 33, so that the transverse protrusion 33 and the transverse groove 34 can mesh together. Under the meshing action of the transverse protrusion 33 and the transverse groove 34, the sealing ring 31 can be limited, so that the inner ring of the sealing ring 31 is tightly stuck in the inner wall of the sealing groove 2, avoiding the displacement of the sealing ring 31 inside the sealing groove 2 due to the vibration caused by the flow of liquid, thereby avoiding relative movement of the two sets of sealing rings 31, and thus avoiding friction between the two sets of sealing rings 31. At the same time, the damping strip 35 can increase the friction between the outer wall of the sealing ring 31 and the sealing groove 2, further improving the stability of the sealing ring 31 and effectively preventing the sealing ring 31 from displacing inside the sealing groove 2.

[0031] When the two sets of flanges 1 are joined together, the spherical protrusions 41 and spherical grooves 42 arranged alternately on the sidewalls of the sealing rings 31 can engage with each other, which can keep the sealing rings 31 on the two sets of flanges 1 in a stable docking state, avoid relative movement of the sealing rings 31, thereby further improving the stability of the sealing rings 31 and effectively avoiding friction between the sealing rings 31.

[0032] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A stainless steel flange sealing structure, characterized in that: include Flange (1), the outer wall of which is fixedly connected to a mating platform (11); A sealing groove (2) is formed on the inner wall of the docking platform (11). A sealing mechanism (3) and an auxiliary mechanism (4) are provided inside the sealing groove (2). The sealing mechanism (3) includes a sealing ring (31), which is fixedly connected to the inner wall of the sealing groove (2). A limit ring (32) is fixedly connected to the side of the sealing ring (31) near the flange (1). A transverse protrusion (33) is fixedly connected to the inner wall of the sealing ring (31). A transverse groove (34) matching the transverse protrusion (33) is opened on the inner wall of the sealing groove (2).

2. The stainless steel flange sealing structure according to claim 1, characterized in that: The auxiliary mechanism (4) includes a spherical cam (41), which is fixedly connected to the side wall of the sealing ring (31).

3. The stainless steel flange sealing structure according to claim 2, characterized in that: The sealing ring (31) has a spherical groove (42) on its side wall that matches the spherical cam (41).

4. The stainless steel flange sealing structure according to claim 3, characterized in that: The spherical convex disc (41) and the spherical groove (42) are arranged alternately and at equal intervals on the side wall of the sealing ring (31).

5. A stainless steel flange sealing structure according to claim 4, characterized in that: The outer wall of the sealing ring (31) is fixedly connected to a damping strip (35), which has an "S" shaped structure.

6. The stainless steel flange sealing structure according to claim 1, characterized in that: The transverse protrusions (33) are provided in multiple sets, and the multiple sets of transverse protrusions (33) are arranged in a circular array on the inner wall of the sealing ring (31) with the center of the sealing ring (31) as the origin.

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