Pipeline compensator with sealing structure

By embedding sealing gaskets at both ends of the pipeline compensator body and using the sealing ring and rubber ring of the protruding part of the inlet pipe, combined with screw fixing, a multi-layer sealing structure is formed, which solves the problem of insufficient sealing performance of traditional pipeline compensators and achieves a highly efficient medium sealing effect.

CN224135440UActive Publication Date: 2026-04-17山东华锐波纹管有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
山东华锐波纹管有限公司
Filing Date
2025-05-27
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Traditional pipe compensators have insufficient sealing at the connection points, and their sealing performance is easily reduced due to fluctuations in medium pressure and temperature changes, making them unable to meet the requirements of pipe systems with high sealing requirements.

Method used

Sealing gaskets are installed at both ends of the pipe compensator body, and sealing rings and rubber rings are set through the protruding part of the inlet pipe. Combined with screw fixation, a multi-layer sealing structure is formed to enhance the sealing performance of the connection.

Benefits of technology

It effectively prevents media leakage, improves the sealing performance at the connection between the pipeline and the pipeline compensator, and reduces the risk of leakage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of pipeline compensators, in particular to a pipeline compensator with a sealing structure, which comprises a pipeline compensator body, sealing gaskets are embedded at two ends of the pipeline compensator body, and ingress pipes are mounted at two ends of the pipeline compensator body. A sealing ring is embedded on the outer ring surface of one end, extending out of the pipeline compensator body, of the ingress pipe; the pipeline compensator has the advantages that the embedding grooves are formed in the two ends of the pipeline compensator body, the sealing gaskets are fixed to the two ends of the pipeline compensator body, when the pipeline compensator body is installed between two pipelines, the sealing gaskets are clamped between the two flange plates, the first-layer sealing effect is achieved, and media in the pipelines can be effectively prevented from leaking from the connecting positions of the flange plates. The end, extending out of the pipeline compensator body, of the guide-in pipe is provided with a clamping groove and fixedly sleeved with a sealing ring, after the guide-in pipe is inserted into the pipeline, the sealing ring is tightly attached to the inner wall of the pipeline to form a second layer of sealing, the sealing performance after the pipeline and the pipeline compensator body are connected is further improved, and the risk of medium leakage is greatly reduced.
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Description

Technical Field

[0001] This utility model relates to the field of pipeline compensator technology, specifically a pipeline compensator with a sealing structure. Background Technology

[0002] In pipeline systems, pipe compensators are crucial components used to compensate for displacement caused by thermal expansion and contraction, vibration, and other factors, ensuring the normal operation of the pipeline system. In practical applications, the sealing performance of the connection between the pipe compensator and the pipeline is paramount. Poor sealing can lead to media leakage, resulting not only in resource waste but also potential safety accidents and environmental impacts.

[0003] Traditional pipe compensators, when installed between two pipes, typically rely solely on flange connections and simple sealing measures to achieve a seal. However, this sealing method has several shortcomings. Firstly, relying solely on the gasket between the flanges, during pipeline operation, factors such as pressure fluctuations and temperature changes of the medium within the pipeline can easily cause the gasket to be compressed and worn, leading to decreased sealing performance and leakage. Secondly, the connection between the pipe compensator and the pipeline lacks an effective auxiliary sealing structure, making it difficult to guarantee long-term sealing stability and failing to meet the needs of some pipeline systems with high sealing requirements. Therefore, a pipe compensator with a more comprehensive sealing structure is needed to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a pipe compensator with a sealing structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pipe compensator with a sealing structure, comprising a pipe compensator body, both ends of which are fitted with sealing gaskets, and both ends of the pipe compensator body are fitted with inlet pipes, one end of the inlet pipe extending out of the pipe compensator body having a sealing ring fitted on its outer ring surface.

[0006] Preferably, both ends of the pipe compensator body are provided with an insert groove, the insert groove is annular, the sealing gasket is fixed in the insert groove, and the thickness of the sealing gasket is greater than the depth of the insert groove.

[0007] Preferably, one end of the inlet pipe that extends into the body of the pipe compensator has an inner ring groove on its inner ring surface. The inner ring groove is an annular groove with an "L" shaped break. A rubber sealing ring is fixed on one side of the inner ring groove, and the rubber sealing ring seals the inner ring opening of the inner ring groove.

[0008] Preferably, both ends of the pipe compensator body have limiting grooves on their inner ring surfaces. A rubber ring is fitted and fixed to one end of the inlet pipe that extends into the pipe compensator body. After the inlet pipe is inserted into the pipe compensator body, the rubber ring is inserted into the limiting groove.

[0009] Preferably, the inner ring groove and the surface of the rubber ring are provided with multiple through holes, and screws are inserted into the through holes. One end of the screw is screwed into the screw groove, which is formed on the surface of the limiting groove.

[0010] Preferably, the end of the inlet pipe extending out of the pipe compensator body has multiple slots on its outer ring surface. The slots are annular, and the sealing ring is fitted and fixed in the slots.

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

[0012] This utility model proposes a pipe compensator with a sealing structure. Both ends of the compensator body have embedded grooves and fixed sealing gaskets. When the compensator body is installed between two pipes, the sealing gaskets are clamped between two sets of flanges, providing a first layer of sealing and effectively preventing leakage of the medium from the flange connection. The end of the inlet pipe extending beyond the compensator body has a groove and a fixed sealing ring. After the inlet pipe is inserted into the pipe, the sealing ring fits tightly against the inner wall of the pipe, forming a second layer of sealing. This further improves the sealing performance after the pipe and compensator body are connected, greatly reducing the risk of medium leakage. Attached Figure Description

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

[0014] Figure 2 This is a top view of the structure of this utility model;

[0015] Figure 3 for Figure 2 Sectional view of the structure at point AA;

[0016] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0017] In the diagram: 1. Pipe compensator body; 2. Insertion groove; 3. Sealing gasket; 4. Inlet pipe; 5. Limiting groove; 6. Rubber ring; 7. Inner ring groove; 8. Perforation; 9. Threaded groove; 10. Screw; 11. Rubber sealing ring; 12. Clip groove; 13. Sealing ring. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] Please see Figures 1 to 4 This utility model provides a technical solution: a pipe compensator with a sealing structure, including a pipe compensator body 1. Both ends of the pipe compensator body 1 have an insertion groove 2, which is annular. A sealing gasket 3 is fixed in the insertion groove 2, and the thickness of the sealing gasket 3 is greater than the depth of the insertion groove 2. Both ends of the pipe compensator body 1 are fitted with sealing gaskets 3, and both ends of the pipe compensator body 1 are equipped with inlet pipes 4. The end of the inlet pipe 4 extending out of the pipe compensator body 1 has multiple retaining grooves 12 on its outer circumferential surface, which are annular. A sealing ring 13 is fitted and fixed in the retaining grooves 12. The pipe compensator body 1 is used to install between two pipes. The flange at the end of the pipe compensator body 1 is connected to the flange at the end of the pipe using bolts. At this time, the sealing gasket 3 is clamped between the two sets of flanges, achieving the sealing effect of the pipe compensator body 1 installed between the two pipes. Furthermore, the end of the inlet pipe 4 extending out of the pipe compensator body 1 is inserted into the pipe, improving the sealing performance after the connection between the pipe and the pipe compensator body 1.

[0020] Both ends of the pipe compensator body 1 have limiting grooves 5 on their inner annular surfaces. A rubber ring 6 is fitted and fixed to one end of the inlet pipe 4 that extends into the pipe compensator body 1. After the inlet pipe 4 is inserted into the pipe compensator body 1, the rubber ring 6 is inserted into the limiting groove 5. When installing the inlet pipe 4, after one end of the inlet pipe 4 is pushed into the pipe compensator body 1, the rubber ring 6 is inserted into the limiting groove 5, forming a temporary limit between the inlet pipe 4 and the pipe compensator body 1.

[0021] The inlet pipe 4 extends into the pipe compensator body 1. An inner annular groove 7 is formed on the inner annular surface of the inlet pipe 4. The inner annular groove 7 is an L-shaped groove. A rubber sealing ring 11 is fixed to one side of the inner annular groove 7, sealing the inner opening of the groove. Multiple through holes 8 are formed on the surfaces of both the inner annular groove 7 and the rubber ring 6. Screws 10 are inserted into the through holes 8, with one end of the screw 10 screwed into a threaded groove 9. The threaded groove 9 is formed on the surface of the limiting groove 5. The rubber sealing ring 11 is lifted, and then the screw 10 is passed through two sets of through holes 8 and screwed into the threaded groove 9, thus firmly fixing the inlet pipe 4 into the pipe compensator body 1.

[0022] Detailed operating procedure for this pipe compensator with a sealing structure: Ensure all components, including the pipe compensator body 1, sealing gasket 3, inlet pipe 4, sealing ring 13, rubber ring 6, rubber sealing ring 11, and screws 10, are complete and undamaged. Check that the surfaces of each component are clean and free of impurities, oil, or other substances that may affect sealing. Measure the outer and inner diameters of the pipe to be connected to ensure they match the dimensions of the pipe compensator body 1 and inlet pipe 4. Accurately embed the sealing gasket 3 into the mounting grooves 2 at both ends of the pipe compensator body 1 according to the shape of the annular groove. Ensure that the sealing gasket 3 completely conforms to the bottom surface of the mounting groove 2, and that its thickness extends uniformly beyond the depth of the mounting groove 2. Place the rubber ring 6 on the end of the inlet pipe 4 that extends into the pipe compensator body 1, ensuring that the rubber ring 6 fits tightly against the outer ring surface of the inlet pipe 4. Align the end of the inlet pipe 4 with the rubber ring 6 with the inner ring surface of one end of the pipe compensator body 1 and slowly push it in. During the insertion process, carefully observe whether the rubber ring 6 smoothly enters the limiting groove 5. When a slight "click" sound is heard or felt, it indicates that the rubber ring 6 has been inserted into the limiting groove 5, forming a temporary limit. Locate the inner ring groove 7 on the inner ring surface of one end of the inlet pipe 4 into the pipe compensator body 1, and gently lift the rubber sealing ring 11 fixed on one side of the inner ring groove 7. Pass one end of the screw 10 through the through hole 8 on the surface of the inner ring groove 7 and the rubber ring 6. Screw the other end of the screw 10 into the threaded groove 9 on the surface of the limiting groove 5. Install all screws 10 one by one, ensuring that each screw 10 is firmly screwed into the threaded groove 9. After confirming that all screws 10 are installed, return the rubber sealing ring 11 to its original position to seal the inner ring opening of the inner ring groove 7. Fit and fix the sealing ring 13 into the slot 12 at the end of the inlet pipe 4 that extends out of the pipe compensator body 1. Align the flanges at both ends of the pipe compensator body 1 with the flanges at the ends of the pipes to be connected. Ensure that the gasket 3 between the flanges is evenly clamped and that the sealing ring 13 fits tightly against the inner ring surface of the pipe. Securely connect the flange at the end of the pipe compensator body 1 to the flange at the end of the pipe using bolts. Tighten the bolts gradually in a diagonal sequence to ensure even stress distribution between the flanges.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipe compensator with a sealing structure, comprising a pipe compensator body (1), characterized in that: Both ends of the pipe compensator body (1) are fitted with sealing gaskets (3), and both ends of the pipe compensator body (1) are fitted with inlet pipes (4). One end of the inlet pipe (4) extending out of the pipe compensator body (1) is fitted with a sealing ring (13) on the outer ring surface.

2. The pipe compensator with a sealing structure according to claim 1, characterized in that: The pipe compensator body (1) has an insertion groove (2) at both ends. The insertion groove (2) is an annular groove. The sealing gasket (3) is fixed in the insertion groove (2). The thickness of the sealing gasket (3) is greater than the depth of the insertion groove (2).

3. The pipe compensator with a sealing structure according to claim 1, characterized in that: The inlet pipe (4) extends into the pipe compensator body (1) and has an inner ring groove (7) on its inner ring surface. The inner ring groove (7) is an annular groove with an "L" shaped break. A rubber sealing ring (11) is fixed on one side of the inner ring groove (7) and the rubber sealing ring (11) seals the inner ring opening of the inner ring groove (7).

4. The pipe compensator with a sealing structure according to claim 3, characterized in that: Both ends of the pipe compensator body (1) have limiting grooves (5) on the inner ring surface. A rubber ring (6) is fixed to one end of the inlet pipe (4) that extends into the pipe compensator body (1). After the inlet pipe (4) is inserted into the pipe compensator body (1), the rubber ring (6) is inserted into the limiting groove (5).

5. A pipe compensator with a sealing structure according to claim 4, characterized in that: Multiple through holes (8) are provided on the surfaces of the inner ring groove (7) and the rubber ring (6). Screws (10) are inserted into the through holes (8). One end of the screw (10) is screwed into the screw groove (9), which is located on the surface of the limiting groove (5).

6. The pipe compensator with a sealing structure according to claim 1, characterized in that: The inlet pipe (4) extends out of the pipe compensator body (1) and has multiple slots (12) on its outer ring surface. The slots (12) are annular grooves, and the sealing ring (13) is fitted and fixed in the slots (12).