Rotary compensator capable of automatically repairing seal

Abstract

The utility model provides a rotary compensator capable of automatically repairing sealing, which relates to the technical field of compensators and comprises a first outer bin, an adjusting component is arranged on the first outer bin and comprises an inner bin, a fixed piston is fixedly connected onto the inner bin, an air bag is slidably connected onto the fixed piston, and a rubber piston is slidably connected onto the air bag. The rubber piston is in sliding connection with the core tube, the fixed piston is in sliding connection with the core tube, the air pressure in the air bag rises to automatically enhance the sealing performance, the air bag can adapt to various working conditions, good sealing performance is kept, reliability and stability are improved, meanwhile, due to the good sealing and automatic repairing functions, the situation that parts are frequently maintained and replaced is reduced, and the service life of the air bag is prolonged. Compared with the prior art, maintenance cost is reduced, downtime is shortened, production efficiency is improved, and the problem that in the prior art, pressure of a sealing piece cannot be changed according to changes of the length of a pipeline generally is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of compensators, in particular to a rotary compensator capable of automatically repairing sealing. Background Art

[0002] In a pipeline system, when the temperature of the transported medium changes, the length of the pipeline will change due to thermal expansion and contraction. For example, in a thermal pipeline, the temperature difference between winter and summer is large, and the thermal expansion and contraction of the pipeline is more obvious. The rotary compensator can absorb the length change of the pipeline caused by temperature change through its own rotation and extension, thereby preventing the pipeline from being damaged by excessive thermal stress. The rotary compensator usually requires a contact seal to seal the gap between the inner and outer compartments. The seal usually needs to be under a certain pressure to fit tightly with the contact surface to achieve effective sealing. When the pressure cannot be adjusted, the pressure on different parts of the seal may be uneven. During the use of the existing technology, the length of the pipeline will fluctuate with changes in factors such as medium flow and temperature. When the pipeline expands, its seal is usually unable to change the pressure according to the change in pipeline length, resulting in a decrease in pressure between the seal and the inner and outer compartments, and the sealing will also be reduced, affecting the overall sealing performance of the rotary compensator. Summary of the Invention

[0003] The purpose of the utility model is to solve the shortcomings of the prior art and provide a rotary compensator that can automatically repair its seal.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a rotary compensator with automatic repairable seal, comprising a first outer warehouse, on which an adjustment component is provided; the adjustment component comprises an inner warehouse, on which a fixed piston is fixedly connected, an airbag is slidably connected to the fixed piston, the airbag is slidably connected to a rubber piston, the rubber piston is slidably connected to a core tube, and the fixed piston is slidably connected to the core tube.

[0005] As a preferred embodiment, a flange is fixedly connected to the core tube, and a connecting piece is fixedly connected to the first outer bin.

[0006] The technical effect of adopting the above-mentioned further scheme is: by connecting a flange on the core tube, the pipeline can be connected through the flange on the core tube. When the pipeline is deformed and stress is generated, the first outer chamber and the second outer chamber will drive the airbag and the inner chamber to move, so that the flange slides on the fixed piston, and the flange slides in the inner chamber to realize the rotation of the core tube. When the temperature rises, the pipeline will stretch, and the core tube will be subjected to axial thrust from the pipeline. The core tube will rotate under the action of this thrust to release this axial force.

[0007] As a preferred embodiment, a threaded member is threadedly connected to the connecting member.

[0008] The technical effect of adopting the above further solution is: by providing a threaded member, the first outer bin and the second outer bin are fixed.

[0009] As a preferred embodiment, a second outer compartment is fixedly connected to the threaded member.

[0010] The technical effect of adopting the above-mentioned further scheme is: by setting a first threaded part on the second outer warehouse, the connection between the first outer warehouse and the second outer warehouse can be achieved during use. When in use, by twisting the threaded part, the connection between the first outer warehouse and the second outer warehouse can be made tighter, further improving the sealing of the device. When removing the rotary compensator, the first outer warehouse and the second outer warehouse can also be removed by twisting the threaded part to replace their internal components.

[0011] As a preferred embodiment, the core tube is slidably connected in the airbag.

[0012] The technical effect of adopting the above further solution is: by setting the core tube to be slidably connected in the airbag, when in use, the sliding of the core tube will push the rubber piston, causing the rubber piston to slide into the airbag, thereby increasing the air pressure in the airbag and improving its sealing.

[0013] As a preferred embodiment, the airbag is fixedly connected in the first outer compartment.

[0014] The technical effect of adopting the above further solution is: by setting the airbag to be fixedly connected to the first outer compartment, the second outer compartment and the first outer compartment can be separated by twisting the threaded part, thereby realizing the removal of the airbag and facilitating the replacement of its internal components during subsequent maintenance.

[0015] Compared with the existing technology, the advantages and positive effects of the present invention are that when stress is generated in the pipeline due to thermal expansion and contraction, the core tube of the rotary compensator rotates to release the axial force, thereby avoiding damage to the pipeline due to stress concentration, extending the service life of the pipeline, reducing maintenance costs and production stoppage losses, and the enhanced sealing can prevent dangerous media from leaking and causing safety accidents. For the rotary compensator itself, the function of automatically enhancing the sealing when the air pressure in the airbag increases enables it to adapt to various working conditions, maintain good sealing performance, and improve reliability and stability. At the same time, due to the good sealing and automatic repair functions, frequent maintenance and replacement of parts are reduced, maintenance costs are reduced, downtime is reduced, and production efficiency is improved, solving the problem in the existing technology in the background technology that its seals are usually unable to change pressure according to changes in pipeline length. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1This is a schematic diagram of the overall structure of a rotary compensator with automatic seal repair provided by the utility model.

[0017] Figure 2 This is a schematic diagram of the disassembled state of the overall structure of a rotary compensator with automatic seal repair provided by the utility model.

[0018] Figure 3 This is a schematic diagram of the position of an airbag of a rotary compensator that can automatically repair and seal provided by the utility model.

[0019] Figure 4 The utility model provides a rotary compensator that can automatically repair the seal Figure 1 A magnified schematic diagram of the structure in the middle.

[0020] Legend: 1. First outer compartment; 11. Connecting piece; 12. Second outer compartment; 2. Adjusting assembly; 21. Inner compartment; 22. Flange; 23. Core tube; 24. Fixed piston; 25. Rubber piston; 26. Airbag; 3. Threaded part. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] like Figures 1 to 4 As shown, a rotary compensator with automatic repairable seal includes a first outer chamber 1, on which an adjustment component 2 is provided; the adjustment component 2 includes an inner chamber 21, on which a fixed piston 24 is fixedly connected, on which an air bag 26 is slidably connected, on which a rubber piston 25 is slidably connected, on which a core tube 23 is slidably connected, and on which the fixed piston 24 is slidably connected.

[0023] In the present invention, when stress is generated in the pipeline due to thermal expansion and contraction, the core tube 23 of the rotary compensator rotates to release the axial force, thereby preventing the pipeline from being damaged due to stress concentration, extending the service life of the pipeline, reducing maintenance costs and production stoppage losses, and the enhanced sealing can prevent dangerous media from leaking and causing safety accidents. For the rotary compensator itself, the function of automatically enhancing the sealing when the air pressure in the airbag 26 increases enables it to adapt to various working conditions, maintain good sealing performance, and improve reliability and stability. At the same time, due to the good sealing and automatic repair functions, frequent maintenance and replacement of parts are reduced, maintenance costs are reduced, downtime is reduced, and production efficiency is improved, solving the problem in the prior art that the seals in the background technology are usually unable to change the pressure according to changes in the length of the pipeline.

[0024] Further, such as Figure 1 、 Figure 2 、 Figure 3 As shown, a flange 22 is fixedly connected to the core tube 23, and a connecting piece 11 is fixedly connected to the first outer warehouse 1. By connecting the flange 22 to the core tube 23, the pipeline can be connected through the flange 22 on the core tube 23. When the pipeline is deformed and stress is generated, the first outer warehouse 1 and the second outer warehouse 12 will drive the airbag 26 and the inner warehouse 21 to move, so that the flange 22 slides on the fixed piston 24, and the flange 22 slides in the inner warehouse 21 to realize the rotation of the core tube 23. When the temperature rises, the pipeline will elongate, and the core tube 23 will be subjected to the axial thrust from the pipeline. The core tube 23 will rotate under the action of this thrust to release this axial force; a threaded part 3 is threadedly connected to the connecting piece 11, and the first outer warehouse 1 and the second outer warehouse 12 are fixed by providing the threaded part 3.

[0025] The second outer warehouse 12 is fixedly connected to the threaded member 3. By setting the first threaded member 3 on the second outer warehouse 12, the connection between the first outer warehouse 1 and the second outer warehouse 12 can be achieved during use. When in use, by twisting the threaded member 3, the connection between the first outer warehouse 1 and the second outer warehouse 12 can be made tighter, further improving the sealing of the device. When removing the rotary compensator, the first outer warehouse 1 and the second outer warehouse 12 can also be removed by twisting the threaded member 3 to replace their internal components.

[0026] The core tube 23 is slidably connected to the airbag 26. By setting the core tube 23 slidably connected to the airbag 26, when in use, the sliding of the core tube 23 will push the rubber piston 25, causing the rubber piston 25 to slide into the airbag 26, thereby increasing the air pressure in the airbag 26 and improving its sealing performance.

[0027] The above solution also has the problem that it is difficult to remove the first outer compartment 1 and the second outer compartment 12 during maintenance, and it is not easy to check the internal components thereof. Figures 1 to 4As shown, the airbag 26 is fixedly connected in the first outer compartment 1. By setting the airbag 26 to be fixedly connected to the first outer compartment 1, the second outer compartment 12 and the first outer compartment 1 can be separated by twisting the threaded part 3, thereby realizing the removal of the airbag 26, and facilitating the replacement of its internal components during subsequent maintenance.

[0028] Working principle: Figure 1-4 As shown, when in use, the core tube 23 is connected to the pipeline through the flange 22. When the pipeline is deformed and generates stress due to thermal expansion and contraction or other reasons, the first outer chamber 1 and the second outer chamber 12 will move under the action of stress, driving the airbag 26 and the inner chamber 21 to move, so that the flange 22 slides on the fixed piston 24 and in the inner chamber 21, thereby realizing the rotation of the core tube 23 to release the axial force. The core tube 23 is slidably connected in the airbag 26. The sliding of the core tube 23 will push the rubber piston 25 into the airbag 26, so that the air pressure in the airbag 26 increases. When the air pressure in the airbag 26 increases, the airbag 26 will expand outward under the action of pressure, and the airbag 26 will fit more closely with surrounding components such as the core tube 23 and the inner chamber 21, thereby reducing the possibility of gas leakage, enhancing the sealing of the rotary compensator in this part, and better preventing the medium in the pipeline from leaking into the external environment to enhance the sealing.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes to apply to other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A rotary compensator capable of automatically repairing a seal, comprising a first outer compartment (1), characterized in that: An adjusting assembly (2) is provided on the first outer chamber (1); the adjusting assembly (2) comprises an inner chamber (21), a fixed piston (24) is fixedly connected to the inner chamber (21), an air bag (26) is slidably connected to the fixed piston (24), a rubber piston (25) is slidably connected to the air bag (26), a core tube (23) is slidably connected to the rubber piston (25), and the fixed piston (24) is slidably connected to the core tube (23).

2. The rotary compensator with automatic seal repair according to claim 1, characterized in that: A flange (22) is fixedly connected to the core tube (23), and a connecting piece (11) is fixedly connected to the first outer bin (1).

3. The rotary compensator with automatic seal repair according to claim 2, characterized in that: A threaded part (3) is threadedly connected to the connecting part (11).

4. The rotary compensator with automatic seal repair according to claim 3, characterized in that: A second outer bin (12) is fixedly connected to the threaded member (3).

5. The rotary compensator with automatic seal repair according to claim 4, characterized in that: The core tube (23) is slidably connected in the air bag (26).

6. The rotary compensator with automatic seal repairability according to claim 1, characterized in that: The airbag (26) is fixedly connected in the first outer compartment (1).

Images