Pipe gallery maintenance structure

Abstract

The utility model discloses a pipe gallery maintenance structure which comprises two semicircular pipe pieces used for wrapping the peripheral face of a water leakage pipeline, the splicing face of the pipe pieces and the contact face of the pipe pieces and the pipeline are covered with hot melting sealing material layers, a conductive heating body is embedded, and efficient sealing is achieved through Joule hot melting sealing materials after electrification. In addition, the structural design comprises a hinged connecting part and a detachable locking part so as to facilitate installation and fixation, meanwhile, various electric connection schemes are provided to ensure reliable work of the conductive heating body, and a concave cavity is formed for containing a water leakage pipeline connector. The purpose of quickly and reliably repairing the water leakage pipeline is achieved, and the maintenance efficiency and the sealing performance are remarkably improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of pipeline repair, in particular to a pipe gallery repair structure. BACKGROUND

[0002] As an important part of the urban drainage system, the stability and reliability of the sewage treatment pipe gallery directly affect the efficiency of sewage treatment and environmental protection. With the acceleration of urbanization, the design and construction technology of the sewage treatment pipe gallery has become mature, providing an important guarantee for the efficient operation of the urban drainage system. However, the sealing performance of the pipe joint connection is affected by factors such as material aging and foundation settlement, leading to frequent water leakage problems, which seriously affects the normal operation of the sewage treatment system and the effect of environmental protection.

[0003] To solve the problem of pipe gallery leakage, the existing technology mainly uses glue injection sealing method and pipe cutting connection method for repair. The glue injection sealing method temporarily seals the leakage point by injecting sealing glue into the leakage point after detecting the leakage point by a robot; the pipe cutting connection method repairs by cutting off the leakage section of the pipe and replacing the new pipe or joint.

[0004] For the above related technology, the following defects exist: the repair operation is complex, it needs to rely on robot detection and manual intervention, and the repair effect is not durable, the glue injection sealing is easy to cause water leakage again due to glue aging or water flow erosion. At the same time, the pipe cutting connection method has high cost, long construction period, and may affect the normal operation of the pipe gallery, leading to interruption of sewage treatment. These problems need a more efficient and convenient repair solution to solve. SUMMARY

[0005] In order to improve the repair efficiency and convenience of the leaking pipe, the present application provides a pipe gallery repair structure.

[0006] The pipe gallery repair structure provided by the present application adopts the following technical scheme:

[0007] A pipe gallery repair structure includes two semicircular pipe pieces for wrapping around the outer periphery of a leaking pipe, a layer of hot melt sealing material is covered on the joint surface between the two semicircular pipe pieces and the contact surface between the semicircular pipe piece and the leaking pipe, and a conductive heating body is embedded in each of the two semicircular pipe pieces. The conductive heating body generates Joule heat when electrified, which is used to melt the hot melt sealing material layer to achieve the sealing purpose of the leaking pipe.

[0008] By adopting the above technical solution, the semi-circular arc pipe segment can tightly wrap around the outer circumference of the leaking pipe. The heat-melting sealing material layer at the splicing and contact surfaces melts under the Joule heat generated by the conductive heating element, thereby achieving an effective seal for the leaking pipe. This solution is simple and quick to operate, requiring no complex testing equipment or prolonged water outages, significantly improving maintenance efficiency and reducing maintenance costs. Simultaneously, the use of the heat-melting sealing material layer ensures the durability of the seal, reducing the risk of re-leakage due to material aging or water erosion.

[0009] Preferably, the area covered by the conductive heating element is divided into a first coverage area and a second coverage area. The first coverage area covers the splicing surface between the two semi-circular arc tube segments, and the second coverage area covers the contact surface between the semi-circular arc tube segment and the leaking pipe.

[0010] By adopting the above technical solution, the conductive heating element's coverage area is divided into a first coverage area and a second coverage area, enabling precise heating of the splicing surface of the semi-circular arc pipe segments and the contact surface between the semi-circular arc pipe segments and the leaking pipe, respectively. The first coverage area covers the splicing surface, effectively melting the heat-fusible sealing material layer there, enhancing the sealing performance between the two semi-circular arc pipe segments and preventing the splicing area from becoming a potential leak point. The second coverage area covers the contact surface, ensuring a tight seal between the semi-circular arc pipe segment and the leaking pipe, improving the reliability of the overall repair structure. This zoning design not only improves thermal energy utilization efficiency but also optimizes the sealing effect, thereby achieving a more durable and stable leak repair.

[0011] Preferably, the conductive heating elements in the first and second coverage areas have a wavy orientation.

[0012] By adopting the above technical solution, the wavy shape of the conductive heating element increases the contact area between the heating element and the thermoplastic sealing material layer, thereby improving heat conduction efficiency and ensuring more uniform melting of the thermoplastic sealing material layer. Furthermore, the wavy design enhances structural stability, avoiding thermal stress concentration problems that may occur with a straight heating element, thus improving the reliability and service life of the maintenance structure.

[0013] Preferably, one side of the two semi-circular arc tube segments is provided with a hinged connection part to realize the rotational connection of the two semi-circular arc tube segments; the other side of the two semi-circular arc tube segments is provided with a detachable locking part to fix the relative position of the two semi-circular arc tube segments when the two semi-circular arc tube segments are closed.

[0014] By adopting the above technical solution, the hinged connection between the semi-circular arc pipe segments can achieve a rotating connection between the two segments, facilitating quick wrapping of the outer circumference of the leaking pipe, and making the operation simple and convenient. The detachable locking part fixes the relative position of the two semi-circular arc pipe segments when they are closed, ensuring the stability of the maintenance structure and preventing the segments from loosening or falling off due to external factors, thereby improving the reliability of the sealing effect.

[0015] Preferably, the conductive heating element is provided with an electrical connection module for connecting to an external power supply; the electrical connection module is configured to conduct the circuit of the conductive heating element.

[0016] By adopting the above technical solution, a flexible connection between the conductive heating element and the external power supply is achieved, ensuring normal circuit conduction according to the actual installation situation. This design improves the applicability of the maintenance structure.

[0017] Preferably, the conductive heating elements of the two semi-circular arc tubes are respectively connected to independent external power supplies; the electrical connection module includes a first power interface respectively disposed at the two semi-circular arc tubes, which is used to realize the purpose of separate conduction of the conductive heating elements when the two semi-circular arc tubes are in a non-closed state.

[0018] By adopting the above technical solution, the conductive heating elements of the two semi-circular arc-shaped tube segments can be connected to independent external power supplies, thereby achieving individual power supply even when the tube segments are not fully closed. This design makes maintenance operations more flexible and convenient. In practical applications, the thermoplastic sealing material layer can be heated in advance without waiting for the tube segments to fully close, effectively shortening maintenance time. It can also achieve the purpose of melting the thermoplastic sealing material layer even when the two tube segments are not tightly closed. However, this solution requires two independent external power supplies, which may increase equipment costs and operational complexity, and needs to be determined based on the actual installation conditions.

[0019] Preferably, a conductive contact is provided between the two semi-circular arc tube segments, and the conductive heating elements of the two semi-circular arc tube segments are connected in series through the conductive contact when the tube segments are closed to form a closed circuit; the electrical connection module includes a single second power interface led out from either semi-circular arc tube segment for connecting an external power source.

[0020] By adopting the above technical solution, when the two semi-circular arc tubes are closed, the conductive heating element is connected in series through the conductive contacts between the two semi-circular arc tubes, thus forming a closed circuit. At this time, only one power interface needs to be led out from one of the semi-circular arc tubes to connect an external power source, which can then energize the entire conductive heating element to generate Joule heat. This design not only simplifies the power supply structure and reduces the number of external power sources required, but also effectively reduces the complexity and cost of the equipment. However, to ensure the normal operation of the conductive heating element, it is essential to ensure good contact of the conductive contacts when the tubes are closed, to avoid problems such as circuit breakage or uneven heating due to poor contact.

[0021] Preferably, the inner side of the semi-circular arc segment is provided with a cavity for accommodating the joint of the leaking pipe.

[0022] By adopting the above technical solution, the concave cavity on the inner side of the semi-circular arc pipe segment can effectively accommodate the joint of the leaking pipe, making the maintenance structure fit the pipe more closely when wrapping it, and avoiding the problem of poor sealing effect caused by the irregular shape of the joint.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The contact surfaces between the semi-circular arc pipe segments and the outer wall of the pipe, as well as the splicing surfaces, are all equipped with a layer of heat-melting sealing material. The heat generated by the conductive heating element quickly melts the sealing material, achieving efficient sealing of the pipe leakage points, simplifying the maintenance process and significantly shortening the maintenance time.

[0025] 2. The wavy conductive heating element can evenly heat the sealing material, ensuring that it fully adheres to the pipe surface, improving the stability and durability of the sealing performance, and effectively addressing the risk of secondary leakage caused by material aging or water erosion.

[0026] 3. This structure enables the rapid installation and fixation of the semi-circular arc segments through hinged connections and detachable locking parts, eliminating the need for water outages or pipe replacements, thus reducing maintenance costs and minimizing the impact on the normal operation of the sewage treatment system. Attached Figure Description

[0027] Figure 1 This is an axial sectional view of the repair structure of Embodiment 1 of this application.

[0028] Figure 2 This is a radial sectional view of the maintenance structure of Embodiment 1 of this application.

[0029] Figure 3 This is a structural view of the repair structure in Embodiment 1 of this application. Figure 1 .

[0030] Figure 4 This is a schematic diagram of the orientation of the electric heating element in Embodiment 1 of this application.

[0031] Figure 5 This is a structural view of the repair structure in Embodiment 1 of this application. Figure 2 .

[0032] Figure 6 This is a schematic diagram of the repair structure of Embodiment 2 of this application.

[0033] Figure 7 This is a schematic diagram of the orientation of the electric heating element in Embodiment 2 of this application.

[0034] Explanation of reference numerals in the attached drawings: 1. Semi-circular arc tube; 2. Conductive heating element; 3. Hinged connection; 4. Detachable locking part; 5. Heat-melting sealing material layer; 6. First power interface; 7. Second power interface; 8. Conductive contact; 9. Leaking pipe; 10. Joint; 11. First coverage area; 12. Second coverage area. Detailed Implementation

[0035] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0036] Example 1

[0037] This application discloses a pipe gallery maintenance structure, referring to... Figure 1 The system includes two semi-circular arc-shaped pipe segments 1 that wrap around the outer surface of the leaking pipe 9. The two semi-circular arc-shaped pipe segments 1 are joined together at the leak location of the leaking pipe 9 to form a closed pipe sleeve. The splicing surfaces between the semi-circular arc-shaped pipe segments 1 and the contact surfaces between the semi-circular arc-shaped pipe segments 1 and the leaking pipe 9 are covered with a heat-melting sealant layer 5. Each of the two semi-circular arc-shaped pipe segments 1 has an embedded conductive heating element 2. When energized, the conductive heating element 2 generates Joule heat to melt the heat-melting sealant layer 5, thereby achieving the purpose of sealing the leaking pipe 9 and achieving the effect of quickly and reliably sealing the leak.

[0038] Specifically, the shape of the semi-circular arc pipe segment 1 can be customized according to the actual pipe size to ensure that it can fit tightly against the outer circumference of the pipe. The inner side of the semi-circular arc pipe segment 1 has a recessed cavity to accommodate the joint 10 of the leaking pipe 9. When water leaks at the joint 10, the inner side of the semi-circular arc pipe segment 1 is sealed and adhered to the outer wall of the leaking pipe 9, while the joint 10, protruding from the outer circumference of the pipe, is accommodated within the recessed cavity.

[0039] Reference Figure 2 and Figure 3Specifically, the conductive heating element 2 is a resistance wire. In other embodiments, heating elements such as heating wires and conductive coatings can also be used. The connection between the conductive heating element 2 and the semi-circular arc tube 1 is achieved through an embedded design. A mounting groove is pre-set inside the semi-circular arc tube 1, extending along the direction of the conductive heating element 2. The resistance wire is embedded in the groove and fixed with high-temperature resistant adhesive. This embedded design not only improves the installation stability of the conductive heating element 2 but also effectively prevents it from being damaged by external environmental factors.

[0040] In this embodiment, the hot-melt sealing material layer 5 is a hot-melt adhesive. Hot-melt adhesive has good fluidity and can quickly fill the tiny gaps on the pipe surface when heated, forming a dense sealing layer. In other embodiments, a combination of hot-melt adhesive and thermoplastic elastomer can be used. Thermoplastic elastomer has excellent elasticity and aging resistance, and can form a soft protective film on the pipe surface, effectively resisting water erosion and environmental corrosion. These two materials can be used in a multi-layer composite manner, ensuring both sealing effect and extended service life.

[0041] In this embodiment, the area covered by the conductive heating element 2 is divided into a first coverage area 11 and a second coverage area 12. The first coverage area 11 covers the splicing surface between the two semi-circular arc tube segments 1, and the second coverage area 12 covers the contact surface between the semi-circular arc tube segment 1 and the leaking pipe 9. To improve the uniform heating of the first and second coverage areas 11 and 12, the conductive heating element 2 in both areas is designed with a wavy shape. This wavy design increases the effective heating area of ​​the conductive heating element 2, resulting in a more uniform heat distribution and preventing local overheating. Simultaneously, the wavy conductive heating element 2 also enhances the bonding strength between itself and the semi-circular arc tube segment 1, preventing deformation or detachment under high-temperature conditions. In other embodiments, the conductive heating element 2 can also be designed in an orthogonal grid or spiral shape.

[0042] Reference Figure 3 and Figure 5 In this embodiment, a hinged connection 3 is provided on one side of each of the two semi-circular arc tube segments 1 to achieve a rotatable connection between them; a detachable locking part 4 is provided on the other side of each segment to fix their relative positions when closed. The hinged connection 3 can be a pin connection or a hinge structure to ensure that the two semi-circular arc tube segments 1 can open and close flexibly. The detachable locking part 4 can be a snap-fit ​​structure or a bolt and nut combination for easy on-site installation and disassembly.

[0043] Reference Figure 3 and Figure 4In this embodiment, the conductive heating element 2 is equipped with an electrical connection module for connecting to an external power supply. The electrical connection module is configured to conduct the circuit of the conductive heating element 2. Specifically, the electrical connection module uses two independent first power interfaces 6, which are respectively located at the two semi-circular arc tube segments 1, allowing the conductive heating elements 2 of the two semi-circular arc tube segments 1 to connect to independent external power supplies, thereby enabling individual conduction of the conductive heating elements 2. This design allows the conductive heating elements 2 of the two semi-circular arc tube segments 1 to operate independently, enabling preheating before the two semi-circular arc tube segments 1 enclose the leaking pipe 9, which is beneficial for improving maintenance efficiency.

[0044] The implementation principle of this embodiment is as follows: by wrapping two semi-circular arc pipe segments 1 around the outer circumference of the leaking pipe 9, and using the heat generated by the conductive heating element 2 to melt the thermoplastic sealing material layer 5, a strong sealing connection is formed. This maintenance structure is not only simple to operate and has a short maintenance cycle, but also has high reliability and durability, effectively solving the problems of complex maintenance operations and short-lasting effects in existing technologies. In addition, this structure does not require water outages and will not affect the normal operation of the pipe gallery, significantly reducing maintenance costs. Furthermore, by providing independent power interfaces for the conductive heating elements 2 of the two semi-circular arc pipe segments 1, a zoned heating function is achieved, improving the adaptability and safety of the maintenance structure.

[0045] Example 2

[0046] The difference between this embodiment and Embodiment 1 lies in the way the electrical connection module is set and the way the conductive heating element 2 is connected.

[0047] Reference Figure 6 and Figure 7 In this embodiment, a conductive contact 8 is provided between the two semi-circular arc tube segments 1. When the tube segments are closed, the conductive heating elements 2 of the two semi-circular arc tube segments 1 are connected in series through the conductive contact 8 to form a closed circuit. This series design can further improve the overall heating efficiency of the conductive heating elements 2 and reduce energy consumption. At the same time, the electrical connection module includes a second power interface 7 led out from either semi-circular arc tube segment 1 for connecting an external power supply, which simplifies the circuit connection method and improves the ease of operation.

[0048] Specifically, after passing through the first covering area 11 and the second covering area 12, the conductive heating element 2 of each semi-circular arc tube 1 converges at both ends on one side of the semi-circular arc tube 1 and is connected to two conductive contacts 8 on the side of the semi-circular arc tube 1, respectively. When the two semi-circular arc tubes 1 are closed, the conductive contacts 8 between the two semi-circular arc tubes 1 are connected and paired one by one, thus forming a complete conductive heating element 2 in series. This complete conductive heating element 2 is led out from one side of one of the semi-circular arc tubes 1 and connected to a single second power interface 7. This design not only simplifies the power supply structure and reduces the number of external power supplies required, but also effectively reduces the complexity and cost of the equipment.

[0049] Specifically, the conductive contact 8 adopts a copper spring sheet design, which has good conductivity and elasticity, and can reliably contact and form a stable circuit when the semi-circular tube 1 is closed. Alternatively, it can be connected by a conductive probe plugging into a socket. In addition, the surface of the conductive contact 8 is coated with an anti-oxidation coating to prevent oxidation during long-term use, which could lead to poor contact.

[0050] The implementation principle of this embodiment is as follows: by adding conductive contacts 8 to achieve series connection of the conductive heating elements 2, the entire maintenance structure can utilize electrical energy more efficiently during the heating process, reducing energy consumption. At the same time, the design of a single power interface reduces the complexity of circuit connections, improves on-site installation efficiency, and further enhances the practicality and economy of the maintenance structure.

[0051] This embodiment also provides a maintenance method based on the above-described maintenance structure, including the following steps:

[0052] S1, the two semi-circular arc pipe segments 1 are opened through the hinged connection part 3 so that they can wrap around the outer circumference of the leaking pipe 9.

[0053] S2, adjust the position of the semi-circular arc tube segment 1 to ensure that it fits tightly against the outer circumference of the pipe and is fixed by the detachable locking part 4.

[0054] S3, connect the electrical connection module to the external power supply, energize the conductive heating element 2, so that the conductive heating element 2 generates heat, the heat is transferred to the thermoplastic sealing material layer 5, and the thermoplastic sealing material layer 5 begins to melt.

[0055] S4. After the heat-melting sealing material layer 5 has completely melted, stop energizing the conductive heating element 2 and wait for it to cool and solidify.

[0056] S5, check the sealing effect to ensure there is no leakage.

[0057] It should be emphasized that the maintenance methods of Example 1 and Example 2 are different.

[0058] In step S2 of embodiment 1, an external power supply is first connected to the first power interface 6 of the conductive heating element 2 of the corresponding semi-circular arc tube 1 in advance, so as to preheat the heat-melting sealing material layer 5 in advance, and simultaneously carry out the installation steps of the semi-circular arc tube 1 and the leaking pipe 9.

[0059] In step S2 of embodiment 2, after the two semi-circular tube segments 1 are fixed by the detachable locking part 4, they are connected to the corresponding conductive contact 8. When performing step S3, after connecting the electrical connection module to the external power supply, it is necessary to perform circuit testing on the conductive heating element 2 of the two semi-circular tube segments to check whether there is an open circuit. If an open circuit is found, a new maintenance structure needs to be replaced before continuing the maintenance steps.

[0060] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pipe rack maintenance structure, characterized by: The utility model provides a leaky pipe sealing device, which comprises two half-circular pipe pieces (1) for wrapping the outer circumferential surface of a leaky pipe (9), a layer of hot melt sealing material (5) covering the joint surface between the two half-circular pipe pieces (1) and the contact surface between the half-circular pipe pieces (1) and the leaky pipe (9), and an electrically conductive heating body (2) embedded in each of the two half-circular pipe pieces (1). When the electrically conductive heating body (2) is powered, it generates Joule heat to melt the layer of hot melt sealing material (5) to achieve the sealing purpose of the leaky pipe (9).

2. A pipe gallery maintenance structure according to claim 1, characterized in that: The area covered by the electrically conductive heating body (2) is divided into a first coverage area (11) and a second coverage area (12), the first coverage area (11) covering the joint surface between the two half-circular pipe pieces (1), and the second coverage area (12) covering the contact surface between the half-circular pipe pieces (1) and the leaky pipe (9).

3. A pipe rack repair structure as claimed in claim 2, wherein: The electrically conductive heating body (2) in the first coverage area (11) and the second coverage area (12) has a wavy shape.

4. The pipe rack repair structure of claim 1, wherein: One side of each of the two half-circular pipe pieces (1) is provided with a hinged connecting part (3) for achieving the rotating connection purpose of the two half-circular pipe pieces (1), and the other side of each of the two half-circular pipe pieces (1) is provided with a detachable locking part (4) for fixing the relative position of the two half-circular pipe pieces (1) when the two half-circular pipe pieces (1) are closed.

5. The pipe rack repair structure of claim 1, wherein: The electrically conductive heating body (2) is provided with an electric connection module for connecting to an external power source, and the electric connection module is configured as an electric circuit for conducting the electrically conductive heating body (2).

6. A pipe rack repair structure as claimed in claim 5, wherein: The electrically conductive heating bodies (2) of the two half-circular pipe pieces (1) are respectively connected to independent external power sources, and the electric connection module includes a first power source interface (6) provided at each of the two half-circular pipe pieces (1) for achieving the individual conduction purpose of the electrically conductive heating body (2) when the two half-circular pipe pieces (1) are in an unclosed state.

7. A pipe rack repair structure as claimed in claim 5, wherein: The two half-circular pipe pieces (1) are provided with an electrically conductive contact (8), and the electrically conductive heating bodies (2) of the two half-circular pipe pieces (1) are connected in series through the electrically conductive contact (8) when the pipe pieces are closed, forming a closed loop, and the electric connection module includes a second power source interface (7) leading out from any of the half-circular pipe pieces (1) for connecting to an external power source.

8. The pipe rack repair structure of claim 1, wherein: The inner side of the half-circular pipe piece (1) is provided with a recess for accommodating the joint (10) of the leaky pipe (9).

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