A heating pipeline repair device

Abstract

This utility model relates to the technical field of pipeline repair, specifically to a heating pipeline repair device, comprising an upper repair cover and a lower repair cover arranged in a semi-cylindrical shape. One side of the upper and lower repair covers is connected by a heavy-duty hinge, and the other side is locked by a quick-release bolt. Both the upper and lower repair covers have internal cavities, including a central cavity in the middle section and side cavities on both sides, separated from each other. The internal cavities of the upper and lower repair covers provide space for resin flow and air pockets. The mounting seat and limiting block in the first limiting assembly provide initial positioning and pre-tightening operation. The spring-driven limiting block automatically pops out when the device is closed, clamping the outer wall of the external pipeline, providing pre-mechanical positioning, and effectively preventing the device from shifting or falling off during subsequent operations. The arc-shaped anti-slip pattern at the bottom of the limiting block increases the friction with the surface of the external pipeline, effectively resisting the axial and circumferential impact of high-pressure fluid.

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline repair, specifically to a heating pipeline repair device. Background Technology

[0002] As the "arteries" of urban centralized heating systems, the safe and stable operation of heating pipelines is crucial. However, due to the harsh environment of high temperature, high pressure, water vapor, and chemical corrosion, pipelines are prone to corrosion perforation, weld cracking, and stress fatigue cracking, leading to media leakage. This not only causes huge losses of heat energy and economy but may also trigger safety accidents, affecting residential heating. Currently, traditional methods for pressurized leak sealing repair of heating pipelines mainly have the following problems: When repairing by welding, the heating must be stopped, the water drained, and the pressure released before the operation can be carried out. The operation process is cumbersome and time-consuming, which seriously affects the continuity of heating and is not suitable for emergency repairs.

[0003] While using clamps / half-clamps can achieve pressurized sealing, it usually relies solely on the elastic seal of rubber gaskets. For irregularly damaged or severely corroded pipe walls, the sealing effect is poor, the long-term reliability is poor, and it is only "plugging" rather than "repairing", and cannot restore the structural strength of the pipeline. When operating by wrapping composite materials, resin needs to be applied manually on-site and fiber cloth needs to be wrapped. The construction quality is highly dependent on the skills of the personnel, and it is difficult to form near high pressure leakage points. The resin is easily washed away, resulting in a high risk of failure. At the same time, the lack of effective pre-tightening force and positioning structure makes it prone to failure under complex working conditions. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a heating pipeline repair device that can achieve the following: With its rapid installation, locking, reliable sealing, and structural reinforcement, it enables the repair of heating pipelines without interrupting heating or affecting system operation.

[0005] To solve the above-mentioned technical problems, the present invention proposes the following technical solution: A heating pipe repair device includes an upper repair cover and a lower repair cover arranged in a semi-cylindrical shape. One side of the upper and lower repair covers is connected by a heavy-duty hinge, and the other side is locked by a quick-release bolt. Both the upper and lower repair covers have internal cavities, including a central cavity in the middle section and side cavities on both sides, separated from each other. A first limiting component and a second limiting component are respectively provided on the outer side of the inner side of both the upper and lower repair covers. A sealing layer is fixedly connected at the center of the inner side, and an injection pipe vertically embedded in the central cavity is fixedly provided on the outer side of the sealing layer. The first limiting component includes a mounting base fixedly connected to the inner corner of the cover body, and the mounting base has an internal opening for... The cavity is fitted with a limit block embedded in it by a spring. The limit block is triangular in shape and its bottom end is an arc-shaped surface with anti-slip pattern. The second limit component includes an "L"-shaped limit airbag fixedly connected to the inner surface of the mounting base. The top of the limit airbag is connected to an inflation ring embedded in the side cavity. The outer side of the inflation ring is connected to an outwardly extending outer pipe by a threaded seal. The end of the outer pipe is equipped with a standard quick-change connector. A sealing layer is fixedly connected to the center of the surface of the sealing layer. A reinforcing layer is laid on the inner layer of the sealing layer. Several sealing strips distributed in an "S" shape are fixedly connected to both sides of the sealing layer. A through hole is opened on the outer surface of the sealing layer corresponding to the reinforcing layer. The through hole corresponds to the injection pipe.

[0006] Furthermore, the mounting base is trapezoidal and consists of four sets, which are fixed to the four corner positions inside the upper and lower repair covers.

[0007] Furthermore, two sets of inflatable rings are arranged in a semi-circular shape, corresponding to the upper repair cover and the lower repair cover respectively.

[0008] Furthermore, both the limiting airbag and the inflation ring are high-strength nylon fabric-lined rubber airbags.

[0009] Furthermore, the sealing layer and plugging layer are made of fluororubber.

[0010] Furthermore, the sealing strip is made of EPDM rubber.

[0011] Furthermore, the reinforcement layer is made of carbon fiber cloth.

[0012] Furthermore, there are multiple injection tubes distributed along the axial direction of the pipeline, and all of them are stainless steel quick-connect plugs.

[0013] Furthermore, a miniature exhaust valve is also provided at the bottom of the central cavity.

[0014] As can be seen from the above technical solution, the beneficial effects of this utility model are: In this invention, the cavities inside the upper and lower repair covers provide space for resin flow and air pockets.

[0015] In this invention, the mounting base and the limiting block in the first limiting component provide initial positioning and pre-tightening operation. The spring-driven limiting block automatically pops out when the device is closed, clamping the outer wall of the external pipe and providing pre-mechanical positioning, thereby effectively preventing the device from shifting or falling off in subsequent operations. The arc-shaped anti-slip pattern at the bottom of the limiting block increases the friction with the surface of the external pipe, effectively resisting the axial and circumferential impact of high-pressure fluid.

[0016] In this invention, the limiting airbag, inflation ring, and outer pipe in the second limiting component achieve active and powerful locking. During operation, the high-strength nylon rubber airbag is inflated by an external air pump, generating a uniform, large, and adjustable clamping force to fix the entire device to the external pipe. The flexibility of the airbag allows it to effectively adapt to irregular surfaces such as non-roundness and corrosion pits on the external pipe, thereby ensuring the uniformity of force transmission and avoiding stress concentration that could damage the pipe.

[0017] This invention utilizes a combination of a sealing layer, a plugging layer, and a sealing strip. The sealing layer and the plugging layer act as the primary sealing means to directly seal the breach, while the secondary sealing strips are arranged in an "S" shape to provide an outer barrier, forming a multi-layered and redundant sealing structure, thereby effectively improving the reliability and safety of the seal.

[0018] This invention features a design with multiple injection pipes and matching vent valves to ensure that the repair resin can quickly, fully, and without bubbles penetrate the entire repair area. In particular, the reinforcement layer, which is set as carbon fiber cloth, forms a carbon fiber composite material after curing, achieving permanent structural repair. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0020] Figure 1 This is a front view of the overall structure of this utility model; Figure 2 This is a front view of the connection of the limiting component in this utility model; Figure 3 This is a front view of the sealing layer connection structure in this utility model.

[0021] Figure label: 1. Upper repair cover; 2. Lower repair cover; 3. Clamping cavity; 4. First limiting component; 5. Second limiting component; 6. Sealing layer; 7. Injection tube; 8. Side cavity; 9. Middle cavity; 10. Mounting base; 11. Mounting cavity; 12. Limiting block; 13. Limiting airbag; 14. Inflatable ring; 15. External connecting pipe; 16. Sealing layer; 17. Reinforcing layer; 18. Sealing strip. Detailed Implementation

[0022] The embodiments of the technical solution of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the technical solution of the present invention and are therefore intended to limit the scope of protection of the present invention.

[0023] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which this invention pertains. The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data used can be interchanged where appropriate for implementation of the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. Unless otherwise stated, the term "a plurality of" means two or more. In embodiments of this disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B means: A or B. The term "and / or" describes an association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B. The term "corresponding" can refer to an association relationship.

[0024] See Figures 1-3 As shown, a heating pipe repair device includes an upper repair cover 1 and a lower repair cover 2 arranged in a semi-cylindrical shape. Both the upper and lower repair covers 1 and 2 have internal cavities 3, each including a central cavity 9 and side cavities 8. A first limiting component 4 and a second limiting component 5 are respectively arranged on the outer inner side of both the upper and lower repair covers 1 and 2. A sealing layer 6 is fixedly connected to the central inner side of both the upper and lower repair covers 1 and 2. An injection pipe 7 vertically embedded in the central cavity 9 is fixedly arranged on the outer side of the sealing layer 6. The first limiting component 4 includes a... Mounting base 10, with an installation cavity 11 inside, and a limiting block 12 embedded in the installation cavity 11. The second limiting component 5 includes a limiting airbag 13 fixedly connected to the inner surface of the mounting base 10. The top of the limiting airbag 13 is connected to an inflation ring 14 that is also embedded in the side cavity 8. The outer side of the inflation ring 14 is connected to an outwardly extending outer pipe 15. A sealing layer 16 is fixedly connected to the center of the surface of the sealing layer 6. A reinforcing layer 17 is laid on the inner layer of the sealing layer 16. Sealing strips 18 are fixedly connected to both sides of the sealing layer 6.

[0025] In this embodiment, the upper repair cover 1 and the lower repair cover 2 are connected by heavy-duty hinges on one side, while the other side is provided with a quick-opening bolt locking mechanism. The clamping cavity 3 is opened in a semi-cylindrical shape along the inside of the upper and lower repair covers, and the middle cavity 9 and the side cavity 8 are separated. In this embodiment, four sets of mounting bases 10 are arranged in a trapezoidal shape and are fixedly connected to the inner corners of the upper and lower repair covers. The mounting cavity 11 is vertically opened at the outer position of the mounting base 10. The limiting block 12 is triangular in shape with an arc-shaped bottom end. The top of the limiting block 12 and the mounting cavity 11 are connected by a spring. The surface of the arc-shaped bottom end of the limiting block 12 is provided with anti-slip patterns. The limiting airbag 13 is L-shaped and its top is embedded in the mounting base 10 from the inside. The inner surface of the mounting base 10 is provided with an inner groove corresponding to the limiting airbag 13. The side of the inflation ring 14 and the outer tube 15 are connected by a threaded seal. The outer tube 15 protrudes outward from the side cavity 8 and is equipped with a standard quick-change connector at the end. Two sets of inflation rings 14 are semi-circular and are arranged in pairs, corresponding to the upper and lower repair covers respectively. Both the limiting airbag 13 and the inflation ring 14 are high-strength nylon fabric-lined rubber airbags.

[0026] In this embodiment, the sealing layer 6 is arc-shaped and fits the inner wall of the middle section of the upper and lower repair covers. The reinforcing layer 17 is made of carbon fiber cloth along the sealing layer 16. The sealing layer 6 has a through hole on the outer surface of the reinforcing layer 17, which is also opened in the injection tube 7. Both the sealing layer 6 and the sealing layer 16 are made of high-temperature resistant rubber, such as fluororubber FKM. Multiple injection tubes 7 are arranged along the axial direction of the pipe. Multiple injection tubes 7 are vertically embedded in the middle cavity 9. At the same time, a miniature exhaust valve is provided at the bottom of the middle cavity 9. The injection tube 7 is made of stainless steel quick connector. The sealing strip 18 includes multiple sets of EPDM rubber arranged in an arc shape. The whole is distributed in an "S" shape and is located on the outer side of the reinforcing layer 17.

[0027] When using this device, after determining the location of the damage to the external pipe, the upper and lower repair covers are respectively placed on the upper and lower surfaces of the pipe. The two are fixed by the externally provided supports and screws. The limiting block 12 is located on the outer side of the external pipe surface. Its elasticity ensures the stability between the external pipe and the upper and lower repair covers. The user connects the external pipe fitting 15 through the external inflation device to inflate the limiting airbag 13. After inflation, the limiting airbag 13 contacts the surface of the external pipe to perform secondary limiting and fixing. The sealing layer 16 on the surface of the sealing layer 6 seals the damaged location of the external pipe. The sealing strip 18 reinforces the sealing performance from the outer side of the sealing layer 16. Then, the user injects external resin into it through the injection pipe 7. The resin seeps into the reinforcing layer 17 through the through holes on the surface of the sealing layer 6 corresponding to the position of the reinforcing layer 17. After it cures, it forms a reinforcement at the damaged location of the pipe.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A heat pipe repair device, characterized by: It includes an upper repair cover (1) and a lower repair cover (2) arranged in a semi-cylindrical shape. One side of the upper repair cover (1) and the lower repair cover (2) are connected by a heavy-duty hinge, and the other side is locked by a quick-release bolt. Both the upper repair cover (1) and the lower repair cover (2) are provided with a clamping cavity (3). The clamping cavity (3) includes a central cavity (9) located in the middle section and side cavities (8) located on both sides. The central cavity (9) and the side cavities (8) are separated. The upper repair cover (1) and the lower repair cover (2) are provided with a first limiting component (4) and a second limiting component (5) on the outer side of the inner side, and a sealing layer (6) is fixedly connected at the center of the inner side. An injection tube (7) is fixedly embedded in the middle cavity (9) on the outer side of the sealing layer (6). The first limiting component (4) includes a mounting base (10) fixedly connected to the inner corner of the cover. The mounting base (10) has a mounting cavity (11) inside. A limiting block (12) is embedded in the mounting cavity (11) by a spring. The limiting block (12) is triangular and its bottom end is an arc surface with anti-slip pattern. The second limiting assembly (5) includes an "L"-shaped limiting airbag (13) fixedly connected to the inner surface of the mounting base (10). The top of the limiting airbag (13) is connected to an inflation ring (14) embedded in the side cavity (8). The outer side of the inflation ring (14) is connected to an outwardly extending outer tube (15) by a threaded seal. The end of the outer tube (15) is equipped with a standard quick-change connector. A sealing layer (16) is fixedly connected to the center of the surface of the sealing layer (6). A reinforcing layer (17) is laid in the inner layer of the sealing layer (16). Several sealing strips (18) distributed in an "S" shape are fixedly connected to both sides of the sealing layer (6). A through hole is opened on the outer surface of the sealing layer (6) corresponding to the reinforcing layer (17). The through hole corresponds to the injection pipe (7).

2. A heating pipe repairing device according to claim 1, characterized in that The mounting base (10) is trapezoidal and has four sets, which are fixed at the four corner positions inside the upper and lower repair covers respectively.

3. The heating pipeline repair device according to claim 1, characterized in that, The air ring (14) is arranged in two sets in a semi-circular shape, corresponding to the upper repair cover (1) and the lower repair cover (2) respectively.

4. A heating pipe repairing device according to claim 1, wherein Both the limiting airbag (13) and the inflation ring (14) are high-strength nylon fabric-lined rubber airbags.

5. A heating pipe repairing device according to claim 1, wherein The sealing layer (6) and the plugging layer (16) are made of fluororubber.

6. A heating pipe repairing device according to claim 1, wherein The sealing strip (18) is made of EPDM rubber.

7. A heating pipe repairing device according to claim 1, wherein The reinforcing layer (17) is carbon fiber cloth.

8. A heating pipe repairing device according to claim 1, wherein There are multiple injection tubes (7), which are distributed along the axial direction of the pipe and are all stainless steel quick-connect plugs.

9. A heating pipe repairing device according to claim 1 or 8, characterized in that, A miniature exhaust valve is also provided at the bottom of the middle cavity (9).

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