CN114542841B - Explosion-proof high pressure resistant self sealss rotary compensator - Google Patents

Explosion-proof high pressure resistant self sealss rotary compensator Download PDF

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Publication number
CN114542841B
CN114542841B CN202210047910.XA CN202210047910A CN114542841B CN 114542841 B CN114542841 B CN 114542841B CN 202210047910 A CN202210047910 A CN 202210047910A CN 114542841 B CN114542841 B CN 114542841B
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China
Prior art keywords
pipe
wall
tube
fixedly connected
limiting
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Application number
CN202210047910.XA
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Chinese (zh)
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CN114542841A (en
Inventor
纪晓东
纪旦根
刘凯丽
陈进
黄锦忠
景爱萍
孙志伟
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Jiangsu Tongfang Machinery Manufacturing Co ltd
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Jiangsu Tongfang Machinery Manufacturing Co ltd
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Priority to CN202210047910.XA priority Critical patent/CN114542841B/en
Publication of CN114542841A publication Critical patent/CN114542841A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L51/00—Expansion-compensation arrangements for pipe-lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
    • F16L27/0804—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another
    • F16L27/0808—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation
    • F16L27/0824—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe the fluid passing axially from one joint element to another the joint elements extending coaxially for some distance from their point of separation with ball or roller bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
    • F16L53/70—Cooling of pipes or pipe systems
    • F16L53/75—Cooling of pipes or pipe systems using cooling fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/02—Energy absorbers; Noise absorbers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
    • F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Joints Allowing Movement (AREA)

Abstract

The invention relates to the technical field of rotary compensators, and particularly discloses an explosion-proof high-pressure-resistant self-sealing rotary compensator which comprises an outer pipe and an inner pipe sleeved in the inner part of the outer pipe, wherein a baffle is arranged on the end surface of the outer pipe, a first bearing is arranged between one side of the surface of the inner pipe and one side of the inner wall of the outer pipe, a connecting pipe is arranged on the end surface of the inner pipe, a second bearing is arranged between the baffle and the connecting pipe, and a limiting component is arranged between the surface of the inner pipe and the inner wall of the outer pipe; the surface of the outer pipe is provided with the baffle plate, the inner pipe is limited and fixed by matching with the first bearing and the second bearing, the inner pipe can be ensured to rotate, the limiting assembly arranged between the inner pipe and the outer pipe can support the outer wall of the inner pipe by matching with the limiting rod through the spring, and the compression resistance of the inner pipe can be enhanced by utilizing the elasticity of the spring after the inner pipe is thermally expanded.

Description

Explosion-proof high pressure resistant self sealss rotary compensator
Technical Field
The invention relates to the technical field of rotary compensators, in particular to an explosion-proof high-pressure-resistant self-sealing rotary compensator.
Background
The rotary compensator mainly acts on and compensates the pipeline, and has a rotating function, and is suitable for the pipeline that produces torsion easily, and the pipeline compensator is also known as expansion bend or expansion joint, the expansion joint, mainly used compensation pipeline receives the expend with heat and contract with cold that the temperature variation produced, guarantee that the pipeline can not receive the expend with heat and the phenomenon of damage appears, but current rotary compensator is in-service use, the simple thickness that relies on self material improves the resistance to compression blast proof ability effect ideal inadequately, and the leakproofness of current compensator between its inner tube and outer tube is also insufficient, the phenomenon of leaking often appears, influence the normal transportation work of pipeline.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the explosion-proof high-pressure-resistant self-sealing rotary compensator which has the advantages of good pressure resistance and the like, and solves the problem that the pressure resistance of the conventional rotary compensator is insufficient.
The explosion-proof high-pressure-resistant self-sealing rotary compensator comprises an outer pipe and an inner pipe sleeved in the outer pipe, wherein a baffle is arranged on the end face of the outer pipe, a first bearing is arranged between one side of the surface of the inner pipe and one side of the inner wall of the outer pipe, a connecting pipe is arranged on the end face of the inner pipe, a second bearing is arranged between the baffle and the connecting pipe, and a limiting assembly is arranged between the surface of the inner pipe and the inner wall of the outer pipe.
Through the design of above-mentioned technical scheme, be provided with the baffle on the surface of outer tube, first bearing and second bearing come to carry on spacing fixedly to the inner tube in the cooperation, have also guaranteed simultaneously that the inner tube can rotate to use the spacing subassembly that sets up between inner tube and the outer tube, can support the outer wall of inner tube through spacing pole on the spring cooperation, can utilize the compressive capacity that the elasticity of spring strengthened the inner tube after letting the inner tube heat expand, avoid the inner tube because of the too big phenomenon that appears exploding and splitting of pressure.
As a further improvement of the invention, the limiting assembly comprises a limiting block, a limiting rod and a spring, the limiting block is fixedly connected to the end face of the limiting rod, the spring is fixedly connected to the surface of the limiting block, the spring is sleeved on the surface of the limiting rod, one side of the limiting block is movably attached to the outer wall of the inner tube, a sealing cavity is formed between the outer wall of the inner tube and the inner wall of the outer tube, and the limiting assembly is arranged inside the sealing cavity.
As a further improvement of the invention, the inner wall of the outer tube is fixedly connected with a support frame, one side of the support frame is fixedly connected with the end face of the spring, and one end of the limiting rod movably penetrates through the side face of the support frame.
As a further improvement of the invention, the bottom of the limiting block is movably clamped with a ball, the surface of the inner tube is provided with a groove, and the inner wall of the groove is movably connected with the surface of the ball.
Through the design of the technical scheme, the inner wall of the outer pipe is provided with the supporting frame, the spring is supported in a limiting mode, the stability of the spring is guaranteed, the ball is arranged on one side of the limiting block, the friction force between the limiting block and the outer wall of the inner pipe is reduced by the ball, the inner pipe is convenient to rotate, and meanwhile the thermal expansion force of the inner pipe heated can be normally transmitted.
As a further improvement of the invention, the inner wall of the outer tube is provided with a hollow chamber, an air bag is arranged in the hollow chamber, and one side of the air bag is movably jointed with one end of the limiting rod.
As a further improvement of the invention, one side of the air bag is fixedly connected with an air duct, one end of the air duct, far away from the air bag, is fixedly connected with a rubber air cushion, the inner wall of the outer tube is provided with a cavity for placing the rubber air cushion, one side of the rubber air cushion is movably attached to the surface of the inner tube, and the rubber air cushion and the air bag are both designed into a sleeve shape.
Through the design of above-mentioned technical scheme, set up the air chamber at the inner wall of outer tube, conveniently accomodate the air cushion and place, the extrusion of cooperation gag lever post comes to be connected with the gasbag through air duct and rubber air cushion for the inside gas of gasbag can enter into the inside of rubber air cushion, further reinforcing gag lever post bulging force, and can also strengthen the leakproofness between outer tube and the inner tube.
As a further improvement of the invention, the outer wall of the inner tube is uniformly and fixedly connected with a fixed rod, one end of the fixed rod is movably connected with a fixed cylinder, and one end of the fixed cylinder, which is far away from the fixed rod, is fixedly connected with the inner wall of the outer tube.
As a further improvement of the invention, the surface of the outer tube is uniformly provided with radiating fins, and the fixed rod and the fixed cylinder are both copper sheets.
Through the design of the technical scheme, the outer wall of the inner pipe is provided with the fixing rod, the fixing barrel is arranged on the surface of the fixing rod, the fixing rod is inserted into the fixing barrel, the fixing rod can move in the fixing rod, the radiating fins arranged on the outer wall of the outer pipe are matched, the inner pipe is enabled to enter the heat conduction effect, and the phenomenon that the inner pipe is damaged due to the fact that heat is too large is avoided.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the baffle is arranged on the surface of the outer pipe, the inner pipe is limited and fixed by matching with the first bearing and the second bearing, the inner pipe can be ensured to rotate, and the limiting assembly arranged between the inner pipe and the outer pipe can support the outer wall of the inner pipe by matching with the limiting rod through the spring, so that the compression resistance of the inner pipe can be enhanced by utilizing the elasticity of the spring after the inner pipe is thermally expanded, and the phenomenon of cracking of the inner pipe due to overlarge pressure is avoided.
2. The inner wall of the outer pipe is provided with the support frame to play a role of limiting and supporting the spring and ensure the stability of the spring, and the ball is arranged on one side of the limiting block to reduce the friction force between the limiting block and the outer wall of the inner pipe, so that the inner pipe can rotate conveniently, and meanwhile, the thermal expansion force generated by heating the inner pipe can be normally transmitted.
3. The inner wall of the outer pipe is provided with the empty chamber, so that the air cushion can be conveniently stored and placed, and the air cushion is connected with the air bag through the air guide pipe and the rubber air cushion in cooperation with extrusion of the limiting rod, so that air in the air bag can enter the rubber air cushion, the expansion force of the limiting rod is further enhanced, and the sealing property between the outer pipe and the inner pipe can be enhanced.
4. According to the invention, the fixed rod is arranged on the outer wall of the inner pipe, the fixed cylinder is arranged on the surface of the fixed rod, the fixed rod is inserted into the fixed cylinder and can move in the fixed rod to be matched with the radiating fins arranged on the outer wall of the outer pipe, so that the effect of heat conduction of the inner pipe is realized, and the phenomenon that the inner pipe is damaged due to overlarge heat is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
FIG. 1 is a schematic front sectional view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is a schematic front sectional view of the inner tube of the present invention;
fig. 4 is a schematic front view of the present invention.
In the figure: 1. an outer tube; 2. a baffle plate; 3. a connecting pipe; 4. an inner tube; 5. a limiting component; 501. a limiting block; 502. a limiting rod; 503. a spring; 6. a support frame; 7. a groove; 8. a ball bearing; 9. an empty chamber; 10. an air bag; 11. an air duct; 12. a rubber air cushion; 13. a fixing rod; 14. a fixed cylinder; 15. a heat sink; 16. a first bearing; 17. a second bearing.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the various embodiments of the invention. It should be understood, however, that these physical details should not be construed as limiting the invention. That is, in some embodiments of the invention, such details are not necessary. In addition, for simplicity, some conventional structures and components are shown in the drawings in a simplified schematic manner.
In addition, the descriptions related to "first", "second", etc. in the present invention are used for descriptive purposes only, do not specifically refer to an order or sequence, and do not limit the present invention, but merely distinguish components or operations described in the same technical terms, and are not to be construed as indicating or implying any relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, 2 and 3, the explosion-proof high pressure resistant self-sealing rotary compensator of the present invention comprises an outer tube 1 and an inner tube 4 sleeved in the inner part of the outer tube 1, a baffle 2 is arranged on the end surface of the outer tube 1, a first bearing 16 is arranged between one side of the surface of the inner tube 4 and one side of the inner wall of the outer tube 1, a connecting tube 3 is arranged on the end surface of the inner tube 4, a second bearing 17 is arranged between the baffle 2 and the connecting tube 3, a limiting assembly 5 is arranged between the surface of the inner tube 4 and the inner wall of the outer tube 1, the limiting assembly 5 comprises a limiting block 501, a limiting rod 502 and a spring 503, the limiting block 501 is fixedly connected on the end surface of the limiting rod 502, the spring 503 is fixedly connected on the surface of the limiting block 501, the spring 503 is sleeved on the surface of the limiting rod 502, one side of stopper 501 and the outer wall activity laminating of inner tube 4, be formed with sealed chamber between the outer wall of inner tube 4 and the inner wall of outer tube 1, spacing subassembly 5 sets up the inside at sealed chamber, be provided with baffle 2 on the surface of outer tube 1, first bearing 16 and second bearing 17 come to carry out spacing fixed to inner tube 4 in the cooperation, inner tube 4 has also been guaranteed to rotate simultaneously, and use the spacing subassembly 5 that sets up between inner tube 4 and the outer tube 1, can support the outer wall of inner tube 4 through spacing pole 502 on the cooperation of spring 503, can utilize spring 503's elasticity to strengthen the compressive capacity of inner tube 4 after letting inner tube 4 heat swell, avoid inner tube 4 because of the phenomenon that the excessive appearance of pressure explodes and split.
Please refer to fig. 1 and fig. 2, the inner wall fixedly connected with support frame 6 of outer tube 1, one side of support frame 6 and the terminal surface fixed connection of spring 503, the side of support frame 6 is run through in the one end activity of gag lever post 502, the bottom activity joint of stopper 501 has ball 8, recess 7 has been seted up on the surface of inner tube 4, the inner wall of recess 7 and the surface swing joint of ball 8, inner wall at outer tube 1 sets up support frame 6, play limit support's effect to spring 503, guarantee spring 503's stability, and set up ball 8 in one side of stopper 501, utilize ball 8 to reduce the frictional force between stopper 501 and the 4 outer walls of inner tube, make things convenient for inner tube 4 to rotate, also can normally transmit the thermal expansion force that inner tube 4 is heated simultaneously.
Please refer to fig. 1 and 2, an empty chamber 9 is formed on the inner wall of the outer tube 1, an air bag 10 is arranged inside the empty chamber 9, one side of the air bag 10 is movably attached to one end of a limiting rod 502, one side of the air bag 10 is fixedly connected with an air duct 11, one end of the air duct 11, which is far away from the air bag 10, of the rubber air cushion 12, a cavity for placing the rubber air cushion 12 is formed on the inner wall of the outer tube 1, one side of the rubber air cushion 12 is movably attached to the surface of the inner tube 4, the rubber air cushion 12 and the air bag 10 are integrally designed into a sleeve shape, the empty chamber 9 is formed on the inner wall of the outer tube 1, the air cushion is convenient to store and place, the air cushion is extruded by the limiting rod 502, the air duct 11 and the rubber air cushion 12 are connected to the air bag 10, so that the gas inside the air bag 10 can enter the inside of the rubber air cushion 12, the expansion force of the limiting rod 502 is further enhanced, and the sealing performance between the outer tube 1 and the inner tube 4 can also be enhanced.
Please refer to fig. 1, fig. 2 and fig. 3, the outer wall of the inner tube 4 is uniformly and fixedly connected with a fixing rod 13, one end of the fixing rod 13 is movably connected with a fixing cylinder 14, one end of the fixing cylinder 14 far away from the fixing rod 13 is fixedly connected with the inner wall of the outer tube 1, the surface of the outer tube 1 is uniformly provided with a radiating fin 15, the fixing rod 13 and the fixing cylinder 14 are both copper sheets, the fixing rod 13 is arranged on the outer wall of the inner tube 4, the fixing cylinder 14 is arranged on the surface of the fixing rod 13, the fixing rod 13 is inserted into the fixing cylinder 14, and can move in the fixing rod 13 to match with the radiating fin 15 arranged on the outer wall of the outer tube 1, so as to realize the effect of heat conduction to the inner tube 4, and avoid the phenomenon that the inner tube 4 is damaged due to excessive heat.
In the use of the invention: the limiting rod 502 in the limiting component 5 is firstly utilized to support and limit the outer wall of the inner tube 4, when the inner tube 4 expands due to heating, the inner tube 4 transmits the expanding acting force to the limiting rod 502, at the moment, the limiting rod 502 drives the limiting block 501 to compress the spring 503, the expanding force applied to the inner tube 4 is reduced through the elastic force of the spring 503, the limiting rod 502 applied with the expanding force also extrudes the air bag 10, so that the air in the air bag 10 passes through the air duct 11 and enters the rubber air cushion 12, at the moment, the rubber air cushion 12 is inflated and expanded to fill the gap between the inner tube 4 and the outer tube 1, and the tightness between the inner tube 4 and the outer tube 1 is further ensured, and inner tube 4 receives the heat and also can pass through the heat conductivity of dead lever 13 and solid fixed cylinder 14, for conducting to outer tube 1, utilize fin 15 on the outer wall of outer tube 1, the heat on the outer tube 1 of scattering, when needs rotate inner tube 4, only need utilize first bearing 16 and second bearing 17, alright with directly going to rotate inner tube 4, and the ball 8 that sets up on stopper 501 also can rotate in recess 7 on the outer wall of inner tube 4, both guaranteed stopper 501 and the connectivity between the outer wall of inner tube 4, and the frictional force between inner tube 4 outer wall and stopper 501 has been reduced, make the rotation that can relax more of inner tube 4.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement or the like made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (3)

1. Explosion-proof high pressure resistant self sealss rotary compensator establishes inner tube (4) in the inside of outer tube (1) including outer tube (1) and cover, its characterized in that: a baffle (2) is arranged on the end face of the outer pipe (1), and a first bearing (16) is arranged between one side of the surface of the inner pipe (4) and one side of the inner wall of the outer pipe (1);
the end face of the inner pipe (4) is provided with a connecting pipe (3), a second bearing (17) is arranged between the baffle plate (2) and the connecting pipe (3), a limiting component (5) is arranged between the surface of the inner pipe (4) and the inner wall of the outer pipe (1), the limiting component (5) comprises a limiting block (501), a limiting rod (502) and a spring (503), the limiting block (501) is fixedly connected on the end face of the limiting rod (502), the spring (503) is fixedly connected on the surface of the limiting block (501), the spring (503) is sleeved on the surface of the limiting rod (502), one side of the limiting block (501) is movably jointed with the outer wall of the inner pipe (4), a sealing cavity is formed between the outer wall of the inner pipe (4) and the inner wall of the outer pipe (1), the limiting component (5) is arranged inside the sealing cavity, the inner wall of the outer pipe (1) is fixedly connected with a supporting frame (6), one side of the supporting frame (6) is fixedly connected with the end face of the spring (503), one end face of the supporting frame (6) penetrates through the side face of the limiting block (501), a ball clamp (8) is connected with the surface of the inner wall (7) of the ball groove (8), and a groove (8) is formed on the inner wall of the groove (7) of the inner pipe (8), empty chamber (9) have been seted up to the inner wall of outer tube (1), the inside of empty chamber (9) is provided with gasbag (10), one side of gasbag (10) is laminated with the one end activity of gag lever post (502), one side fixedly connected with air duct (11) of gasbag (10), the one end fixedly connected with rubber air cushion (12) of gasbag (10) are kept away from in air duct (11), the cavity that is used for placing rubber air cushion (12) is seted up to the inner wall of outer tube (1), one side of rubber air cushion (12) is laminated with the surface activity of inner tube (4), rubber air cushion (12) and gasbag (10) whole all design complete set tube-shape.
2. The explosion-proof high pressure resistant self-sealing rotary compensator of claim 1, characterized in that: the outer wall of inner tube (4) is even fixedly connected with dead lever (13), the one end swing joint of dead lever (13) has a solid fixed cylinder (14), the one end that dead lever (13) was kept away from in solid fixed cylinder (14) is connected with the inner wall fixed connection of outer tube (1).
3. The explosion-proof high pressure resistant self-sealing rotary compensator of claim 2, characterized in that: the surface of the outer tube (1) is uniformly provided with radiating fins (15), and the fixing rod (13) and the fixing barrel (14) are copper sheets.
CN202210047910.XA 2022-01-17 2022-01-17 Explosion-proof high pressure resistant self sealss rotary compensator Active CN114542841B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210047910.XA CN114542841B (en) 2022-01-17 2022-01-17 Explosion-proof high pressure resistant self sealss rotary compensator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210047910.XA CN114542841B (en) 2022-01-17 2022-01-17 Explosion-proof high pressure resistant self sealss rotary compensator

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CN114542841B true CN114542841B (en) 2023-04-18

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Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7821972U1 (en) * 1978-07-22 1978-11-16 Woma Apparatebau Wolfgang Maasberg & Co Gmbh, 4100 Duisburg SWIVEL JOINT
CN202561321U (en) * 2012-05-08 2012-11-28 江苏宏鑫旋转补偿器科技有限公司 Anti-explosion high-pressure-resistant self-sealing rotating compensator with adjustable ring surface seal
CN203809937U (en) * 2014-04-22 2014-09-03 江苏新方圆电气设备制造有限公司 Anti-explosion high pressure resistant rotary compensator
CN107559514A (en) * 2017-09-28 2018-01-09 丁毅 Whirl compensator
CN109340468A (en) * 2018-09-25 2019-02-15 江苏兴能金属制品有限公司 A kind of heat-resisting high efficient heat exchanging seamless steel pipe
CN209067972U (en) * 2018-10-09 2019-07-05 江西天丰建设集团管业科技有限公司 A kind of double-colored reinforced composite pipe of bilayer ribbing
CN211779542U (en) * 2019-12-18 2020-10-27 江苏星球防腐科技有限公司 High leakproofness rotary compensator
CN214119269U (en) * 2020-12-26 2021-09-03 江苏中鑫波纹管有限公司 Safe explosion-proof self sealss rotary compensator

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PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Explosion proof and high-pressure resistant self sealing rotary compensator

Granted publication date: 20230418

Pledgee: Bank of Jiangsu Co.,Ltd. Taizhou Branch

Pledgor: Jiangsu Tongfang Machinery Manufacturing Co.,Ltd.

Registration number: Y2024980004851

PE01 Entry into force of the registration of the contract for pledge of patent right