A multi-pipe caliber adapting stainless steel compensator

Abstract

The utility model discloses a stainless steel compensator technical field's a kind of multi-pipeline calibre adaptation's stainless steel compensator, including bellows, the both ends of bellows are equipped with first connecting flange, the outside of two groups of first connecting flange respectively has several groups of fixed lug, between two groups of fixed lug, connecting limit rod, one end of two groups of first connecting flange is also respectively provided with end connecting piece, and end connecting piece includes second connecting flange, and between second connecting flange and first connecting flange, still be provided with elastic sealing element, by the end connecting piece of respectively adding in the both ends of bellows, and the elastic sealing element of adding between end connecting piece and bellows, the stable connection of bellows and pipeline interface can be realized, reliable sealing barrier is formed in the junction, the effective anti-leakage of pipeline medium is realized, and it can absorb the axial, lateral and angular displacement of pipeline during the operation of compensator, to improve the stability and security of pipeline system.

Description

Technical Field

[0001] This utility model relates to the technical field of stainless steel compensators, and in particular to a stainless steel compensator adaptable to multiple pipe diameters. Background Technology

[0002] Stainless steel compensators are flexible connecting elements used in pipeline systems to absorb displacement caused by thermal expansion and contraction, mechanical vibration, or foundation settlement. Their main body typically consists of a stainless steel bellows, end fittings, a flow guide, flanges, or joints. Stainless steel possesses excellent corrosion resistance and high-temperature strength, enabling the compensator to operate stably for extended periods in high-temperature, high-pressure, or corrosive media environments. Through the elastic deformation of the bellows, the stainless steel compensator effectively compensates for axial, lateral, and angular displacements of the pipeline, preventing cracking or deformation due to thermal stress, thereby ensuring the safe operation and reliable sealing of the system.

[0003] Currently, while existing stainless steel compensators can absorb axial, lateral, or angular displacement in pipelines, most products are only suitable for pipes of fixed diameters. When connecting pipes of different diameters, stainless steel compensators cannot be adapted simply by changing the port fittings of the appropriate specifications. This typically requires additional pipe interfaces, which not only complicates installation, occupies more space, and increases pipeline installation and construction costs, but also increases the likelihood of incompatibility between the additional pipe interfaces and the compensator, potentially severely affecting the stability and sealing of the connection between the pipeline and the compensator. Therefore, existing technologies have certain safety hazards and limitations in application.

[0004] Based on this, we propose a stainless steel compensator that adapts to multiple pipe diameters to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Therefore, the purpose of this utility model is to provide a stainless steel compensator that is compatible with multiple pipe diameters, which can solve the problems of existing stainless steel compensators requiring additional pipe interfaces when connecting pipes of different diameters because the specifications of the ports cannot be changed, resulting in complicated installation, large space occupation, increased cost, unstable connection and insufficient sealing.

[0007] To solve the above technical problems, this utility model provides a stainless steel compensator that adapts to multiple pipe diameters, and adopts the following technical solution: it includes a bellows, with first connecting flanges installed at both ends of the bellows, and several sets of fixing lugs on the outer side of the two sets of first connecting flanges respectively. A limit rod is connected between the two sets of fixing lugs, and an end connector is also provided at one end of the two sets of first connecting flanges respectively. The end connector includes a second connecting flange, and an elastic sealing element is provided between the second connecting flange and the first connecting flange.

[0008] Optionally, the first connecting flange has an embedded groove inside, and the inner wall of the embedded groove is provided with a number of positioning blocks around it.

[0009] Optionally, the second connecting flange has several sets of positioning holes around its outer perimeter, and the second connecting flange and the inner side of the embedded groove are respectively provided with annular grooves. A third connecting flange is also connected to the side of the second connecting flange away from the annular groove.

[0010] Optionally, the second connecting flange and the inner groove are in a transition fit, and the positioning port and the positioning block are in a snap-fit ​​fit.

[0011] Optionally, the elastic seal includes two sets of annular rubber shells, with an annular rubber ring connecting the two sets of annular rubber shells, and several sets of compression springs connecting the annular rubber ring to the interior of the two sets of annular rubber shells.

[0012] Optionally, the annular rubber shell matches the annular groove structure, and the annular rubber shell and the annular groove have a transition fit.

[0013] In summary, this utility model has at least one of the following beneficial effects: 1. In this utility model, an end connector with a third connecting flange matching the target pipe diameter is installed at one end and precisely connected to the bellows. A specially designed inner groove and positioning block on one side of the bellows, along with the transition fit between the second connecting flange and the inner groove, and the snap-fit ​​fit between the positioning port and the positioning block, ensure a stable and limited connection of the end connector at both ends of the bellows. This ensures precise alignment of the flange holes around the second connecting flange and the first connecting flange. Bolts and other fasteners are then used to firmly fix the second connecting flange inside the first connecting flange, achieving a tight connection between the two. This effectively solves the problem of connecting pipes of different diameters, improving installation convenience and connection stability.

[0014] 2. In this utility model, by adopting a transition fit structure of an annular rubber shell and an annular groove between the second connecting flange and the first connecting flange after the connection is fixed, the elastic seal can be cleverly limited and connected between the two. The elastic seal, with its annular rubber ring and the compression springs set inside the two sets of annular rubber shells, can significantly enhance the sealing effect, so that the second connecting flange inside the first connecting flange forms a reliable sealing barrier at the connection. Moreover, the compression spring can automatically and elastically compensate for small displacements or pressure fluctuations during pipeline operation, so that the sealing structure always maintains a moderate compression state, effectively avoiding the problem of loosening of the seal due to thermal expansion and contraction or vibration, thereby ensuring the stability, sealing performance and long-term reliable operation of the connection between the compensator and the pipeline. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the first connecting flange structure of this utility model; Figure 3 This is a schematic diagram of the end connector structure of this utility model; Figure 4 This is a schematic diagram of the elastic sealing element structure of this utility model.

[0017] Explanation of reference numerals in the attached drawings: 1. Bellows; 2. First connecting flange; 21. Embedded groove; 22. Positioning block; 3. Fixing ear plate; 4. Limiting rod; 5. End connector; 51. Second connecting flange; 6. Elastic seal; 61. Annular rubber shell; 62. Annular rubber ring; 63. Compression spring; 52. Positioning port; 53. Annular groove; 54. Third connecting flange. 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] Example: Refer to Figures 1 to 4This utility model provides an embodiment of a stainless steel compensator adaptable to multiple pipe diameters, including a bellows 1. First connecting flanges 2 are installed at both ends of the bellows 1. Several sets of fixing lugs 3 are respectively provided on the outer sides of the two sets of first connecting flanges 2. A limit rod 4 is connected between the two sets of fixing lugs 3. An end connector 5 is also provided at one end of each of the two sets of first connecting flanges 2. The end connector 5 includes a second connecting flange 51. An elastic sealing element 6 is also provided between the second connecting flange 51 and the first connecting flange 2. By installing end connectors 5 at both ends of the bellows 1 and elastic sealing elements 6 between the end connectors 5 and the bellows 1, the bellows 1 can achieve... The corrugated pipe 1 is firmly connected to the pipe interface, and a reliable sealing barrier is formed at the connection to effectively prevent leakage of the pipe medium. It also ensures that the compensator can absorb the axial, lateral and angular displacement of the pipe during operation, thereby improving the stability and safety of the pipeline system. The first connecting flange 2 has an embedded groove 21 inside, and several sets of positioning blocks 22 are set around the inner wall of the embedded groove 21. By opening the embedded groove 21 inside the first connecting flange 2 and setting several sets of positioning blocks 22 around the inner wall of the embedded groove 21, a precise positioning basis can be provided for the installation of the second connecting flange 51, so as to realize the stable limiting connection of the end connector 5 at both ends of the corrugated pipe 1.

[0020] The second connecting flange 51 has several sets of positioning ports 52 around its outer perimeter. The inner sides of the second connecting flange 51 and the embedded groove 21 each have annular grooves 53. A third connecting flange 54 is also connected to the side of the second connecting flange 51 away from the annular grooves 53. By creating several sets of positioning ports 52 around the outer perimeter of the second connecting flange 51, it can form a snap-fit ​​with the positioning block 22 in the embedded groove 21 of the first connecting flange 2, achieving precise positioning and installation of the second connecting flange 51 at both ends of the bellows 1, ensuring accurate alignment of the flange holes. By creating annular grooves 53 on the inner sides of the second connecting flange 51 and the embedded groove 21, it can form a transition fit with the annular rubber shell 61, achieving stable positioning of the elastic seal 6, enhancing the sealing performance of the connection, and preventing media leakage. By adding a third connecting flange 54 to one side of the second connecting flange 51, it can achieve quick connection with pipes of different diameters. The quick-fit connection enables the replaceability and ease of installation of the bellows 1 port, thereby improving the connection stability and operational reliability of the pipeline system. The second connecting flange 51 and the inner groove 21 have a transition fit, and the positioning port 52 and the positioning block 22 have a snap-fit ​​fit. Through the structural design of the transition fit between the second connecting flange 51 and the inner groove 21, it can be ensured that the second connecting flange 51 can be smoothly inserted and maintain a certain fixed position during installation, achieving the initial stability and ease of installation of the connection between the second connecting flange 51 and the first connecting flange 2. Through the structural design of the snap-fit ​​fit between the positioning port 52 and the positioning block 22, the precise limiting and fixing of the second connecting flange 51 can be further achieved, ensuring the precise alignment of the flange holes opened around the second connecting flange 51 and the first connecting flange 2, achieving a firm fixation at the connection and a stable and reliable installation of the compensator and the pipeline interface.

[0021] The elastic seal 6 includes two sets of annular rubber shells 61, with an annular rubber ring 62 connected between them. Several sets of compression springs 63 are also connected between the annular rubber ring 62 and the interior of the two sets of annular rubber shells 61. Through the coordinated operation of the annular rubber shells 61, the annular rubber ring 62, and the compression springs 63, the elastic seal 6 forms an elastic buffer structure between the first connecting flange 2 and the second connecting flange 51. This structure effectively absorbs minor displacements or pressure fluctuations generated during pipeline operation, achieving automatic elastic compensation and maintaining a moderately compressed sealing structure. This effectively prevents loosening of the seal due to thermal expansion and contraction or vibration, ensuring the pipeline's stability. The annular rubber shell 61 and the annular groove 53 are structurally matched to ensure the safe sealing of the medium and provide long-term reliable operation for the connection between the compensator and the pipeline. The annular rubber shell 61 and the annular groove 53 are in a transition fit. Through the structural design of the transition fit between the annular rubber shell 61 and the annular groove 53, it can be ensured that the elastic seal 6 is smoothly positioned during installation, while maintaining an appropriate restraint force. This achieves precise positioning and stable fixation of the elastic seal 6 inside the second connecting flange 51 and the first connecting flange 2. Through this transition fit structure, it can effectively prevent the elastic seal 6 from shifting or loosening during pipeline operation, thus achieving long-term stability of the sealing structure and reliability of the connection between the compensator and the pipeline.

[0022] Working principle: When connecting pipes of different diameters, the stainless steel compensator designed in this scheme only needs to precisely connect the end connector 5, which is equipped with a third connecting flange 54 matching the diameter of the target pipe, to the bellows 1. Since the bellows 1 has a specially designed inner groove 21 and a positioning block 22 on one side, and the second connecting flange 51 and the inner groove 21 adopt a transition fit, and the positioning port 52 and the positioning block 22 adopt a snap fit, the end connector 5 with the third connecting flange 54 can be firmly and securely connected to both ends of the bellows 1. This structural design ensures that the flange holes opened around the second connecting flange 51 and the first connecting flange 2 can be precisely aligned. Then, bolts and other fasteners can be used to easily and firmly fix the second connecting flange 51, which is equipped with a third connecting flange 54 of the corresponding diameter of the pipe, inside the first connecting flange 2, so as to achieve a tight fixation at the connection between the two.

[0023] Between the second connecting flange 51 and the first connecting flange 2 after the connection is fixed, the elastic seal 6 can be cleverly limited and connected between the second connecting flange 51 inside the first connecting flange 2 through the transition fit structure between the annular rubber shell 61 and the annular groove 53. The elastic seal 6, with the annular rubber ring 62 and the compression spring 63 installed between the two sets of annular rubber shells 61, can significantly enhance the sealing effect, so that the second connecting flange 51 inside the first connecting flange 2 forms a reliable sealing barrier at the connection point. Moreover, the compression spring 63 can automatically elastically compensate for the small displacement or pressure fluctuations generated during pipeline operation, so that the sealing structure always maintains a moderate compression state. This can effectively avoid the problem of loosening of the seal due to thermal expansion and contraction or vibration, effectively prevent media leakage, and provide a solid guarantee for the stability, sealing performance and long-term reliable operation of the connection between the compensator and the pipeline.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stainless steel compensator adaptable to multiple pipe diameters, comprising a bellows (1), characterized in that: The bellows (1) is equipped with first connecting flanges (2) at both ends. There are several sets of fixing lugs (3) on the outside of the two sets of first connecting flanges (2). Limiting rods (4) are connected between the two sets of fixing lugs (3). End connectors (5) are also provided at one end of the two sets of first connecting flanges (2). The end connector (5) includes a second connecting flange (51), and an elastic sealing element (6) is provided between the second connecting flange (51) and the first connecting flange (2).

2. The stainless steel compensator adaptable to multiple pipe diameters according to claim 1, characterized in that: The first connecting flange (2) has an inner groove (21) inside, and a number of positioning blocks (22) are arranged around the inner wall of the inner groove (21).

3. A stainless steel compensator adaptable to multiple pipe diameters according to claim 2, characterized in that: The second connecting flange (51) has several sets of positioning ports (52) around its outer perimeter. The second connecting flange (51) and the inner side of the embedded groove (21) are respectively provided with annular grooves (53). The second connecting flange (51) is also connected to a third connecting flange (54) on the side away from the annular groove (53).

4. A stainless steel compensator adaptable to multiple pipe diameters according to claim 3, characterized in that: The second connecting flange (51) and the inner groove (21) are in transition fit, and the positioning port (52) and the positioning block (22) are in snap fit.

5. A stainless steel compensator adaptable to multiple pipe diameters according to claim 4, characterized in that: The elastic seal (6) includes two sets of annular rubber shells (61), and an annular rubber ring (62) is connected between the two sets of annular rubber shells (61). Several sets of compression springs (63) are also connected between the annular rubber ring (62) and the interior of the two sets of annular rubber shells (61).

6. A stainless steel compensator adaptable to multiple pipe diameters according to claim 5, characterized in that: The annular rubber shell (61) and the annular groove (53) are structurally matched, and the annular rubber shell (61) and the annular groove (53) are in a transition fit.

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