High-pressure-resistant polytetrafluoroethylene corrugated pipe compensator

Abstract

The utility model relates to the technical field of corrugated pipe compensators, and discloses a high-pressure-resistant polytetrafluoroethylene corrugated pipe compensator which comprises a corrugated pipe and a first pull rod assembly, and the corrugated pipe is installed on a connecting pipe through the first pull rod assembly and used for compensating displacement generated in the using process of the connecting pipe; the first pull rod assembly comprises two pull rods, the two ends of the two pull rods are fixedly connected to the connecting pipe through fixing bases correspondingly, the two pull rods are connected through a buffering assembly, and the buffering assembly is used for driving the two pull rods to slide in the buffering assembly to compensate for displacement generated in the using process of the corrugated pipe. Through cooperation of the corrugated pipe and the first pull rod assembly, transverse and axial displacement generated in the using process of the connecting pipe can be effectively absorbed, a spring in the buffering assembly can provide buffering protection for the corrugated pipe, and impact and vibration caused by displacement are reduced.

Description

Technical Field

[0001] This application relates to the field of bellows compensator technology, specifically a high-pressure resistant polytetrafluoroethylene bellows compensator. Background Technology

[0002] Bellows compensators are a type of compensating element. They utilize the effective expansion and contraction deformation of their main working body, the bellows, to absorb dimensional changes in pipelines, ducts, and containers caused by thermal expansion and contraction, or to compensate for axial, lateral, and angular displacements of pipelines, ducts, and containers. They can also be used for noise reduction and vibration damping, and are widely used in modern industry.

[0003] To prevent the bellows compensator from being impacted during use and affecting its service life, tie rods are installed around its perimeter. Chinese Patent Application Publication No. CN206487981U discloses a bend pressure balance compensator, which includes a connecting pipe, a bellows, an intermediate connecting pipe, an elbow, an end cap, and a tie rod assembly. One end of the bellows is connected to the intermediate connecting pipe, and the other end is connected to the elbow; bellows are welded to the left side of the intermediate connecting pipe and the right side of the elbow, respectively. The connecting pipe and end cap are located at the ends of the bend pressure balance compensator; the tie rod assembly is located on the outside of the bend pressure balance compensator. The aforementioned bellows compensator has limitations in displacement compensation, especially in lateral displacement, and cannot effectively absorb complex displacement changes. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this application provides a high-pressure resistant polytetrafluoroethylene (PTFE) bellows compensator.

[0005] To solve the above problems, this application provides the following technical solution: a high-pressure resistant polytetrafluoroethylene corrugated pipe compensator, comprising: a corrugated pipe and a first tie rod assembly, wherein the corrugated pipe is installed on the pipe through the first tie rod assembly for compensating for displacement that occurs during the use of the pipe;

[0006] The first tie rod assembly includes two tie rods, the two ends of which are fixedly connected to the connecting pipe by fixing seats. The two tie rods are connected by a buffer assembly, which is used to drive the two tie rods to slide inside the buffer assembly to compensate for the displacement that occurs during the use of the bellows.

[0007] Preferably, the buffer assembly has a groove inside, and the two pull rods are slidably connected inside the groove.

[0008] Preferably, a baffle is fixedly installed at one end of the two pull rods that slide inside the buffer assembly. The baffle slides inside the groove of the buffer assembly to limit the pull rods.

[0009] Preferably, the two pull rods are fitted with springs on the surface inside the groove of the buffer assembly to compensate for the displacement of the bellows during use.

[0010] Preferably, the end of the pull rod near the fixed seat is provided with a thread, and the pull rod is fixedly connected to the fixed seat by a nut, which is used to adjust the distance between the two pull rods.

[0011] Preferably, the connecting pipe is connected to a bend, and at least one set of corrugated pipes is provided on each of the connecting pipes on both sides of the bend for compensating for the lateral displacement of the bend.

[0012] Preferably, the two ends of the connecting pipe are connected by a second tie rod assembly to support several sets of corrugated pipes on the connecting pipe.

[0013] Preferably, the pull rod on the second pull rod assembly is supported by a guide ring.

[0014] Preferably, one end of the connector is provided with a plug.

[0015] Compared with the prior art, this application provides a high-pressure resistant polytetrafluoroethylene bellows compensator, which has the following advantages:

[0016] This high-pressure resistant PTFE bellows compensator, through the cooperation of the bellows and the first tie rod assembly, can effectively absorb the lateral displacement that occurs during the use of the pipe. The spring in the buffer assembly can provide buffer protection for the bellows, reducing the impact and vibration caused by displacement. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of a high-pressure resistant polytetrafluoroethylene bellows compensator according to this application;

[0018] Figure 2 This is a schematic diagram of the tie rod assembly of this application;

[0019] Figure 3 This is a schematic diagram of the structure of the buffer component in this application.

[0020] In the diagram: 1. Connecting pipe; 2. Bellows; 3. Bend; 4. First tie rod assembly; 5. Plug; 6. Second tie rod assembly; 7. Guide ring; 8. Buffer assembly; 9. Fixing seat; 10. Tie rod; 11. Thread; 12. Nut; 13. Spring; 14. Baffle. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Please see Figure 1-Figure 3 This application provides a new technical solution: a high-pressure resistant polytetrafluoroethylene bellows compensator, including a bellows 2 and a first tie rod assembly 4. The bellows 2 is made of high-pressure resistant polytetrafluoroethylene material, which has good chemical stability and temperature resistance, and can withstand working conditions under high pressure. The bellows 2 is installed on the connecting pipe 1 through the first tie rod assembly 4 to compensate for the displacement of the connecting pipe 1 during use. When the connecting pipe 1 is displaced, the bellows 2 will deform accordingly to absorb the displacement.

[0023] The first pull rod assembly 4 includes two pull rods 10. The two ends of the two pull rods 10 are fixedly connected to the pipe 1 by fixing seats 9. The two pull rods 10 are connected by a buffer assembly 8. The buffer assembly 8 is used to drive the two pull rods 10 to slide inside the buffer assembly 8 to compensate for the displacement that occurs during the use of the bellows 2.

[0024] In some embodiments, the buffer assembly 8 has a groove inside, and the two pull rods 10 are slidably connected inside the groove.

[0025] In some embodiments, a baffle 14 is fixedly installed at one end of the two pull rods 10 that slides inside the buffer assembly 8. The baffle 14 slides inside the groove of the buffer assembly 8 to limit the pull rods 10.

[0026] In some embodiments, the two pull rods 10 are fitted with springs 13 on the surface inside the groove of the buffer assembly 8 to compensate for the displacement of the bellows 2 during use. When the bellows 2 is displaced, the pull rods 10 slide inside the buffer assembly 8, and the springs 13 provide a buffering force, so that the bellows 2 can smoothly absorb the displacement.

[0027] In some embodiments, the end of the pull rod 10 near the fixed base 9 is provided with a thread 11, and the pull rod 10 is fixedly connected to the fixed base 9 by a nut 12. The nut 12 is used to adjust the distance between the two pull rods 10. In use, the distance between the two pull rods 10 can be adjusted by adjusting the position of the nut 12 to adapt to different working environments.

[0028] In some embodiments, a bend 3 is connected to the connecting pipe 1, and at least one set of corrugated pipes 2 are respectively provided on the connecting pipes 1 on both sides of the bend 3 for compensating for the lateral displacement of the bend 3.

[0029] In some embodiments, the two ends of the connecting pipe 1 are connected by a second tie rod assembly 6 to support a plurality of corrugated pipes 2 on the connecting pipe 1.

[0030] In this embodiment, the pull rod on the second pull rod assembly 6 is supported by the guide ring 7, and the two ends of the connecting pipe 1 are connected by the second pull rod assembly 6. The pull rod on the second pull rod assembly 6 is supported by the guide ring 7 to ensure the structural stability of the entire compensator.

[0031] In some embodiments, a plug 5 is provided at one end of the connector 1 to seal one end of the connector 1 and prevent external substances from entering the pipeline system.

[0032] Working principle: In the use of a high-pressure resistant polytetrafluoroethylene bellows compensator, the bellows 2 is installed on the connecting pipe 1 through the first tie rod assembly 4. When the connecting pipe 1 is displaced, the bellows 2 will deform accordingly to absorb the displacement. The two tie rods 10 are connected by a buffer assembly 8. The buffer assembly 8 has a sliding groove inside, which allows the two tie rods 10 to slide in the groove. A baffle 14 is fixedly installed at the contact end between the tie rod 10 and the inside of the buffer assembly 8. The baffle 14 slides inside the groove of the buffer assembly 8 to limit the tie rod 10 and prevent excessive displacement. A spring 13 is sleeved on the surface of the tie rod 10 in contact with the inside of the buffer assembly 8. When the bellows 2 is displaced, the tie rod 10 will slide inside the buffer assembly 8, and the spring 13 provides a buffering force, so that the bellows 2 can smoothly absorb the displacement.

[0033] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-pressure resistant polytetrafluoroethylene bellows compensator, characterized in that, include: A bellows and a first tie rod assembly, wherein the bellows is mounted on the pipe via the first tie rod assembly to compensate for displacement that occurs during the use of the pipe; The first tie rod assembly includes two tie rods, the two ends of which are fixedly connected to the connecting pipe by fixing seats. The two tie rods are connected by a buffer assembly, which is used to drive the two tie rods to slide inside the buffer assembly to compensate for the displacement that occurs during the use of the bellows.

2. The high-pressure resistant polytetrafluoroethylene corrugated compensator according to claim 1, characterized in that, The buffer assembly has a sliding groove inside, and the two pull rods are slidably connected inside the sliding groove.

3. The high-pressure resistant polytetrafluoroethylene corrugated compensator according to claim 2, characterized in that, A baffle is fixedly installed at one end of each of the two pull rods that slides inside the buffer assembly. The baffle slides inside the groove of the buffer assembly and is used to limit the pull rod.

4. The high-pressure resistant polytetrafluoroethylene corrugated compensator according to claim 3, characterized in that, The two pull rods are fitted with springs on the surface inside the groove of the buffer assembly to compensate for the displacement of the bellows during use.

5. A high-pressure resistant polytetrafluoroethylene bellows compensator according to claim 1, characterized in that, The end of the pull rod near the fixed base is threaded, and the pull rod is fixedly connected to the fixed base by a nut. The nut is used to adjust the distance between the two pull rods.

6. A high-pressure resistant polytetrafluoroethylene bellows compensator according to claim 1, characterized in that, The connecting pipe is connected to a bend, and at least one set of corrugated pipes is provided on each of the two connecting pipes on both sides of the bend to compensate for the lateral displacement of the bend.

7. A high-pressure resistant polytetrafluoroethylene bellows compensator according to claim 1, characterized in that, The two ends of the connector are connected by a second tie rod assembly, which is used to support several sets of bellows on the connector.

8. A high-pressure resistant polytetrafluoroethylene bellows compensator according to claim 7, characterized in that, The upper tie rod of the second tie rod assembly is supported by a guide ring.

9. A high-pressure resistant polytetrafluoroethylene bellows compensator according to claim 1, characterized in that, A plug is provided at one end of the connector.

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