Teflon lined compensator

Abstract

The utility model discloses a lining teflon compensator, relates to compensator technical field, including metal bellows and teflon lining, teflon lining is provided inside metal bellows, the both ends of metal bellows abut against the flange, the flange one side close to metal bellows is provided with the mounting groove, the flange one side close to metal bellows is provided with the teflon lining, the teflon lining is provided with the mounting groove, and the mounting groove is provided with the teflon lining. A mounting ring is clamped in the mounting groove, a sealing ring is fixedly arranged on the side, close to the metal corrugated pipe, of the mounting ring, the sealing ring is fixedly connected with the metal corrugated pipe, a sealing groove is formed in the side, close to the metal corrugated pipe, of the mounting groove, and the sealing ring is clamped with the sealing groove; a plurality of connecting blocks are fixedly arranged on the side wall of the flange, threaded rods are inserted into the connecting blocks, and the two ends of each threaded rod are sleeved with nuts in a threaded mode. According to the expansion joint, the corrugated pipe can be replaced in a time-saving and labor-saving mode, the flange does not need to be disassembled, and the maintenance and repair efficiency of the expansion joint can be greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to compensator technical field, concretely relates to a lining tetrafluoro compensator. BACKGROUND

[0002] In numerous industrial pipeline systems, especially when it involves the transmission of corrosive medium, the lining tetrafluoro compensator plays a crucial role. When the traditional lining tetrafluoro compensator needs to be replaced due to damage to the corrugated pipe, the connected flanges often need to be disassembled. This process is extremely cumbersome. Disassembling the flanges not only requires a large amount of manpower and time, but also may affect the overall stability of the pipeline system. After reinstalling the flanges, strict sealing tests and calibration are required to ensure no leakage. SUMMARY

[0003] In view of the above problems existing in the prior art lining tetrafluoro compensator, the utility model is proposed.

[0004] Therefore, the utility model aims to provide a lining tetrafluoro compensator, which solves the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A lining tetrafluoro compensator, comprising a metal corrugated pipe and a tetrafluoro lining, the tetrafluoro lining is sleeved inside the metal corrugated pipe, the two ends of the metal corrugated pipe are provided with flanges, the side of the flange close to the metal corrugated pipe is provided with a mounting groove, the inside of the mounting groove is clamped with a mounting ring, the side of the mounting ring close to the metal corrugated pipe is fixedly provided with a sealing ring, the sealing ring is fixedly connected with the metal corrugated pipe, the side of the mounting groove close to the metal corrugated pipe is provided with a sealing groove, the sealing ring is clamped with the sealing groove, the side wall of the flange is fixedly provided with a plurality of connecting blocks, the inside of the plurality of connecting blocks is inserted with a threaded rod, the two ends of the threaded rod are threadedly sleeved with a nut, the plurality of nuts are in contact with one side of the corresponding connecting block, the corresponding two threaded rods are fixedly provided with a vertical rod, the rod wall of the vertical rod is rotatably sleeved with a U-shaped plate, the two ends of the U-shaped plate are in contact with the side of the corresponding sealing ring close to the metal corrugated pipe, the middle end of the U-shaped plate is provided with a limiting mechanism for limiting the relative rotation of the U-shaped plate and the vertical rod.

[0007] Preferably, the limiting mechanism comprises a fixed tube and a movable rod, the fixed tube is fixedly arranged on the middle end outer wall of the U-shaped plate, the inside of the fixed tube is slidably provided with a movable block, the movable rod is fixedly arranged on the side of the movable block close to the vertical rod, one end of the movable rod extends to the outside of the fixed tube, the middle end side wall of the vertical rod is provided with a through hole, the outside one end of the movable rod is inserted into the through hole, the side of the movable block away from the movable rod is fixedly provided with a spring, the other end of the spring is fixedly connected with the inner wall of the fixed tube.

[0008] Preferably, a rubber ring is provided on the inner wall of the mounting groove and on the outer wall of the mounting ring, and one side of the sealing ring contacts the rubber ring.

[0009] Preferably, the mounting ring and the sealing ring are integrally formed.

[0010] Preferably, the cross sections of the sealing ring and the sealing groove are both rectangular.

[0011] Preferably, the longitudinal sections of the movable block and the fixed tube are both rectangular.

[0012] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0013] The utility model pushes the movable rod into the fixed tube, so that the movable rod is separated from the through hole, that is, the limit of the U-shaped plate is released, and the U-shaped plate can be rotated with the vertical rod as the axis, so that the two ends of the U-shaped plate are separated from the corresponding sealing rings. At this time, the metal bellows is shrunk and folded, and the mounting ring and the sealing ring can be removed from the corresponding mounting groove and the sealing groove, thus completing the disassembly of the metal bellows, which makes it convenient to maintain and repair the metal bellows, and there is no need to disassemble the flanges at both ends, which can greatly improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0015] Figure 1 This is a schematic structural diagram of a polytetrafluoroethylene-lined compensator proposed in the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the internal structure;

[0017] Figure 3 for Figure 2 Schematic diagram of the structure of the middle limit mechanism.

[0018] Description of reference numerals:

[0019] 1. Metal bellows; 2. Flange; 3. Vertical rod; 4. Threaded rod; 5. Connecting block; 6. Nut; 7. Fixed pipe; 8. Movable rod; 9. U-shaped plate; 10. PTFE lining; 11. Spring; 12. Movable block; 13. Mounting ring; 14. Sealing ring; 15. Rubber ring. DETAILED DESCRIPTION

[0020] In order to make the technical scheme of the utility model better understood by the skilled in the art, the utility model will be further described in detail below with reference to the drawings.

[0021] The utility model discloses a lining four fluorine compensator.

[0022] With reference to Figures 1-3 A lining four fluorine compensator, including metal bellows 1 and four fluorine lining 10, four fluorine lining 10 is set up in the inside of metal bellows 1, both ends of metal bellows 1 are all close to the side of flange 2 and are provided with mounting groove, the inside of mounting groove is clamped and is connected with mounting ring 13, the side of mounting ring 13 close to metal bellows 1 is fixedly provided with sealing ring 14, and mounting ring 13 and sealing ring 14 are integrally formed, improve the sealing between mounting ring 13 and sealing ring 14, sealing ring 14 is fixedly connected with metal bellows 1, and the side of mounting groove close to metal bellows 1 is provided with sealing groove, and sealing ring 14 is clamped with sealing groove, the side wall of flange 2 is fixedly provided with a plurality of connecting blocks 5, the inside of a plurality of connecting blocks 5 is inserted with threaded rod 4, and both ends of threaded rod 4 are all threadedly provided with nut 6, a plurality of nut 6 all abut with the side of corresponding connecting block 5, and the fixedly provided with vertical rod 3 between corresponding two threaded rods 4, and the rod wall of vertical rod 3 is rotatably provided with U-shaped plate 9, and both ends of U-shaped plate 9 abut with the side of corresponding sealing ring 14 close to metal bellows 1.

[0023] With reference to Figures 1-3 The middle end of U-shaped plate 9 is provided with a limiting mechanism for limiting the rotation of U-shaped plate 9 relative to vertical rod 3, and the limiting mechanism comprises a fixed tube 7 and a movable rod 8, the fixed tube 7 is fixedly arranged on the outer wall of the middle end of U-shaped plate 9, the movable block 12 is slidably arranged in the inside of fixed tube 7, the movable rod 8 is fixedly arranged on the side of movable block 12 close to vertical rod 3, one end of movable rod 8 extends to the outside of fixed tube 7, a through hole is formed in the middle end side wall of vertical rod 3, and the outside end of movable rod 8 is inserted into the through hole, the side of movable block 12 away from movable rod 8 is fixedly provided with a spring 11, the other end of spring 11 is fixedly connected with the inner wall of fixed tube 7, and the longitudinal section of movable block 12 and fixed tube 7 is rectangular, so that movable block 12 cannot rotate, that is, it can stably slide.

[0024] With reference to Figures 1-3 The inner wall of mounting groove and located at the outer wall of mounting ring 13 is provided with a rubber ring 15, one side of sealing ring 14 abuts with rubber ring 15, which can further improve the sealing between mounting ring 13 and mounting groove, the cross section of sealing ring 14 and sealing groove is rectangular, so that mounting ring 14 cannot rotate, and the stability of metal bellows 1 can be maintained.

[0025] In use, the movable rod 8 is pushed into the fixed tube 7, so that the movable rod 8 is separated from the through hole, the limiting of the U-shaped plate 9 is cancelled, the U-shaped plate 9 can be rotated around the vertical rod 3, the two ends of the U-shaped plate 9 are separated from the corresponding sealing rings 14, at this time, the metal bellows 1 is folded, the mounting ring 13 and the sealing ring 14 can be removed from the corresponding mounting groove and sealing groove, the disassembly of the metal bellows 1 is completed, the metal bellows 1 is convenient to maintain and repair, and the two end flanges 2 do not need to be disassembled, and the working efficiency can be greatly improved.

[0026] The above only describes some exemplary embodiments of the utility model by way of illustration, without doubt, for ordinary skilled person in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the utility model. Therefore, the above drawings and description are illustrative in nature and should not be understood as limiting the scope of protection of the utility model claims.

Claims

1. A PTFE-lined compensator, comprising a metal bellows (1) and a PTFE lining (10), characterized in that: The PTFE lining (10) is sleeved inside the metal bellows (1), and flanges (2) are provided at both ends of the metal bellows (1), and a mounting groove is provided on the side of the flange (2) close to the metal bellows (1), and a mounting ring (13) is clamped inside the mounting groove, and a sealing ring (14) is fixedly provided on the side of the mounting ring (13) close to the metal bellows (1), and the sealing ring (14) is fixedly connected to the metal bellows (1), and a sealing groove is provided on the side of the mounting groove close to the metal bellows (1), and the sealing ring (14) is clamped to the sealing groove. The side wall of the flange (2) is fixedly provided There are a plurality of connecting blocks (5), the interiors of the plurality of connecting blocks (5) are all plugged with threaded rods (4), both ends of the threaded rods (4) are threadedly sleeved with nuts (6), and the plurality of nuts (6) are in conflict with one side of the corresponding connecting block (5). A vertical rod (3) is fixedly arranged between the corresponding two threaded rods (4), and a U-shaped plate (9) is rotatably sleeved on the rod wall of the vertical rod (3). Both ends of the U-shaped plate (9) are in conflict with one side of the corresponding sealing ring (14) close to the metal bellows (1), and a limiting mechanism is provided at the middle end of the U-shaped plate (9) for limiting the rotation of the U-shaped plate (9) relative to the vertical rod (3).

2. The polytetrafluoroethylene-lined compensator according to claim 1, characterized in that: The limiting mechanism comprises a fixed tube (7) and a movable rod (8), wherein the fixed tube (7) is fixedly arranged on the outer wall of the middle end of the U-shaped plate (9), and a movable block (12) is slidably arranged inside the fixed tube (7), and the movable rod (8) is fixedly arranged on a side of the movable block (12) close to the vertical rod (3), one end of the movable rod (8) extends to the outside of the fixed tube (7), and a through hole is opened in the side wall of the middle end of the vertical rod (3), and one end of the outer side of the movable rod (8) is plugged into the through hole, and a spring (11) is fixedly arranged on the side of the movable block (12) away from the movable rod (8), and the other end of the spring (11) is fixedly connected to the inner wall of the fixed tube (7).

3. The polytetrafluoroethylene-lined compensator according to claim 1, characterized in that: A rubber ring (15) is provided on the inner wall of the installation groove and on the outer wall of the installation ring (13), and one side of the sealing ring (14) is in contact with the rubber ring (15).

4. The polytetrafluoroethylene-lined compensator according to claim 1, characterized in that: The mounting ring (13) and the sealing ring (14) are integrally formed and manufactured.

5. The polytetrafluoroethylene-lined compensator according to claim 1, characterized in that: The cross sections of the sealing ring (14) and the sealing groove are both rectangular.

6. The polytetrafluoroethylene-lined compensator according to claim 2, characterized in that: The longitudinal sections of the movable block (12) and the fixed tube (7) are both rectangular.

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