Oil and gas pipeline under-pressure leaking stoppage device and system

Abstract

The utility model discloses an oil and gas pipeline under-pressure leaking stoppage device and system, and relates to the technical field of oil and gas pipelines, the oil and gas pipeline under-pressure leaking stoppage device comprises a pipeline holding mechanism and a leaking stoppage box mechanism, the pipeline holding mechanism comprises a first driving assembly and a clamp, and the first driving assembly is used for driving the clamp to hold a pipeline; the leaking stoppage box mechanism is arranged on the pipeline holding mechanism, the leaking stoppage box mechanism comprises a second driving assembly and a leaking stoppage box, and the second driving assembly is used for driving the leaking stoppage box to cover the leaking point of the pipeline after the clamp holds the pipeline. According to the under-pressure leaking stoppage device for the oil and gas pipeline, through the synergistic effect of the pipeline holding mechanism and the leaking stoppage box mechanism, quick and accurate plugging of the leaking point of the pipeline is achieved, the leaking stoppage efficiency and the operation safety are improved, and the problems that in the prior art, manual leaking stoppage is low in efficiency and poor in safety, and the leaking point is difficult to locate accurately are effectively solved.

Description

Technical Field

[0001] This application relates to the field of oil and gas pipeline technology, and in particular to a pressurized leak sealing device and system for oil and gas pipelines. Background Technology

[0002] During long-term use, oil and gas pipelines are prone to perforation and leakage due to factors such as poor material corrosion resistance, processing defects, or harsh operating conditions, which seriously affect energy supply and environmental safety.

[0003] Currently, the mainstream leak-sealing method mainly relies on skilled workers to manually seal leaks on-site using a steel strap tensioning method. This method has significant problems such as low efficiency and poor safety. The steel strap tensioning method requires manual operation by workers on-site, which is not only time-consuming and labor-intensive, but also poses extremely high risks of safety accidents in high-pressure, flammable, and explosive environments. In addition, the leak-sealing effect of the steel strap tensioning method is limited, and the leak opening is still susceptible to corrosion, which may require secondary sealing, further increasing maintenance costs and time. Utility Model Content

[0004] The purpose of this application is to provide a live leak sealing device for oil and gas pipelines. Through the coordinated action of a pipeline clamping mechanism and a leak-sealing box mechanism, it achieves rapid and precise sealing of pipeline leaks, improving sealing efficiency and operational safety. This effectively solves the problems of low efficiency, poor safety, and difficulty in accurately locating leaks in existing manual leak sealing techniques. Another purpose of this application is to provide a live leak sealing system for oil and gas pipelines.

[0005] To achieve the above objectives, this application provides a live leak sealing device for oil and gas pipelines, comprising:

[0006] A pipe clamping mechanism includes a first drive assembly and a clamp, wherein the first drive assembly is used to drive the clamp to clamp the pipe;

[0007] A leak-stopping box mechanism is provided on the pipe clamping mechanism. The leak-stopping box mechanism includes a second drive assembly and a leak-stopping box. The second drive assembly is used to drive the leak-stopping box to cover the leak point of the pipe after the clamp clamps the pipe.

[0008] In some embodiments, the leak-sealing box mechanism further includes a release box, which has a communicating opening and a chamber, the chamber containing the leak-sealing box, and the opening being controlled to open and close by the second drive component.

[0009] In some embodiments, the release box is provided with an elastic element that extends into the chamber and is used to drive the sealing box toward the opening.

[0010] In some embodiments, the release box is provided with a slide groove located on the side of the chamber facing the opening, and the second drive assembly includes a second drive structure and a sliding cover. The second drive structure is used to drive the sliding cover to slide along the slide groove to control the opening and closing of the opening.

[0011] In some embodiments, the second driving structure includes a protective shell, a force transmission element, and a shape memory alloy spring. The shape memory alloy spring is disposed in the protective shell. The force transmission element connects the shape memory alloy spring and the sliding cover. The shape memory alloy spring can deform when energized, thereby driving the force transmission element to move, and in turn, driving the sliding cover to move.

[0012] In some embodiments, the first drive assembly includes a first drive structure and a side link, the first drive structure being tractively connected to the side link, and the side link being connected to the clamp.

[0013] In some embodiments, the pipe clamping mechanism further includes a frame, and the first drive assembly further includes a slider that is movable relative to the frame and is connected to the side link.

[0014] In some embodiments, the first drive structure includes a servo motor, a rotating rod, and an upper connecting rod. The output end of the servo motor is rotatably connected to the rotating rod, the rotating rod is rotatably connected to the upper connecting rod, and the upper connecting rod is rotatably connected to the slider.

[0015] This application also provides a live leak sealing system for oil and gas pipelines, including a robot and the aforementioned live leak sealing device for oil and gas pipelines. The robot is equipped with a robotic arm, which is connected to the live leak sealing device for oil and gas pipelines.

[0016] In some embodiments, the robot is provided with a vision system, a mobility system, and an electromechanical system, the electromechanical system being controlled and connected to the first drive component and the second drive component.

[0017] Compared with the above-mentioned background technology, the oil and gas pipeline pressurized leak sealing device provided in this application mainly includes a pipeline clamping mechanism and a leak sealing box mechanism. The pipeline clamping mechanism includes a first driving component and a clamp. The first driving component is used to drive the clamp to clamp the pipeline. The leak sealing box mechanism is located on the pipeline clamping mechanism. The leak sealing box mechanism includes a second driving component and a leak sealing box. The second driving component is used to drive the leak sealing box to cover the leak point of the pipeline after the clamp clamps the pipeline.

[0018] Existing methods for sealing oil and gas pipeline leaks primarily rely on manual operation, such as the steel strap tensioning method. This method is not only inefficient, requiring significant time and manpower, but also poses extremely high safety risks in high-pressure, flammable, and explosive environments, easily leading to accidents. Furthermore, manual leak sealing is often unsatisfactory, potentially requiring repeated operations, further increasing maintenance costs and time. Additionally, manual operation struggles to accurately locate leak points, resulting in inconsistent sealing effectiveness.

[0019] To address the aforementioned problems, this application provides a live leak sealing device for oil and gas pipelines. Its core lies in achieving efficient, safe, and precise leak sealing operations through optimized mechanical structure design. The device mainly comprises a pipeline clamping mechanism and a leak sealing box mechanism. The pipeline clamping mechanism includes a first drive assembly and a clamp. The first drive assembly provides power to the clamp, enabling it to firmly clamp the pipeline, thereby providing stable support for subsequent leak sealing operations. This mechanized clamping method not only improves operational stability but also reduces the risks associated with manual operation.

[0020] The leak-sealing box mechanism is located within the pipe clamping mechanism and includes a second drive assembly and a leak-sealing box. The second drive assembly, after the clamps have gripped the pipe, drives the leak-sealing box to precisely cover the leak point. This design, through precise mechanized control, ensures the leak-sealing box accurately reaches the leak location, avoiding the problems of leak-sealing failure or poor results caused by inaccurate positioning during manual operation. Through the coordinated action of the pipe clamping mechanism and the leak-sealing box mechanism, the entire leak-sealing process is automated and precise, greatly improving leak-sealing efficiency and operational safety.

[0021] Based on the above structural and process descriptions, it can be seen that the pressurized leak sealing device for oil and gas pipelines has at least the following beneficial effects: Through the coordinated action of the pipeline clamping mechanism and the leak sealing box mechanism, the pressurized leak sealing device for oil and gas pipelines achieves rapid and accurate sealing of pipeline leaks, improves leak sealing efficiency and operational safety, and effectively solves the problems of low efficiency, poor safety, and difficulty in accurately locating leaks in existing technologies for manual leak sealing. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 A structural diagram of the pipe clamping mechanism provided in the embodiments of this application;

[0024] Figure 2 This is a structural diagram of the leak-stopping box mechanism provided in an embodiment of this application.

[0025] in:

[0026] Pipeline 01

[0027] Pipe clamping mechanism 100, first drive assembly 11, first drive structure 111, servo motor 1111, rotating rod 1112, upper connecting rod 1113, side connecting rod 112, slider 113, clamp 12, frame 13.

[0028] Leak-stopping box mechanism 200, second drive assembly 21, second drive structure 211, protective shell 2111, force transmission component 2112, shape memory alloy spring 2113, sliding cover 212, leak-stopping box 22, release box 23, opening 231, chamber 232, slide groove 233, elastic component 24. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Please refer to Figure 1 and Figure 2 ,in, Figure 1 This is a structural diagram of the pipe clamping mechanism provided in an embodiment of this application. Figure 2 This is a structural diagram of the leak-stopping box mechanism provided in an embodiment of this application.

[0032] In a first specific embodiment, the pressurized leak sealing device for oil and gas pipelines provided in this application mainly includes a pipeline clamping mechanism 100 and a leak sealing box mechanism 200. The pipeline clamping mechanism 100 includes a first driving component 11 and a clamp 12. The first driving component 11 is used to drive the clamp 12 to clamp the pipeline 01. The leak sealing box mechanism 200 is disposed on the pipeline clamping mechanism 100. The leak sealing box mechanism 200 includes a second driving component 21 and a leak sealing box 22. The second driving component 21 is used to drive the leak sealing box 22 to cover the leak point of the pipeline 01 after the clamp 12 clamps the pipeline 01, so that the repair agent of the leak sealing box 22 can tightly adhere to the leak point and complete the leak sealing operation.

[0033] Existing methods for sealing oil and gas pipeline leaks primarily rely on manual operation, such as the steel strap tensioning method. This method is not only inefficient, requiring significant time and manpower, but also poses extremely high safety risks in high-pressure, flammable, and explosive environments, easily leading to accidents. Furthermore, manual leak sealing is often unsatisfactory, potentially requiring repeated operations, further increasing maintenance costs and time. Additionally, manual operation struggles to accurately locate leak points, resulting in inconsistent sealing effectiveness.

[0034] To address the aforementioned problems, this application provides a live leak sealing device for oil and gas pipelines. Its core lies in achieving efficient, safe, and precise leak sealing operations through optimized mechanical structure design. The device mainly includes a pipeline clamping mechanism 100 and a leak sealing box mechanism 200. The pipeline clamping mechanism 100 includes a first drive assembly 11 and a clamp 12. The first drive assembly 11 provides power to the clamp 12, enabling it to firmly clamp the pipeline 01, thereby providing stable support for subsequent leak sealing operations. This mechanized clamping method not only improves operational stability but also reduces the risks associated with manual operation.

[0035] The leak-sealing box mechanism 200 is located within the pipe clamping mechanism 100 and includes a second drive assembly 21 and a leak-sealing box 22. The function of the second drive assembly 21 is to drive the leak-sealing box 22 to precisely cover the leak point on the pipe 01 after the clamp 12 has clamped the pipe 01. This design, through precise mechanized control, ensures that the leak-sealing box 22 accurately reaches the leak point, avoiding the problems of leak-sealing failure or poor results caused by inaccurate positioning during manual operation. Through the coordinated action of the pipe clamping mechanism 100 and the leak-sealing box mechanism 200, the entire leak-sealing process is automated and precise, greatly improving leak-sealing efficiency and operational safety.

[0036] Based on the above structural and process descriptions, it can be seen that the pressurized leak sealing device for oil and gas pipelines has at least the following beneficial effects: Through the synergistic action of the pipeline clamping mechanism 100 and the leak sealing box mechanism 200, the pressurized leak sealing device for oil and gas pipelines achieves rapid and accurate sealing of the leak point 01 in pipelines, improves the sealing efficiency and operational safety, and effectively solves the problems of low efficiency, poor safety, and difficulty in accurately locating leak points in existing technologies for manual leak sealing.

[0037] It should be noted that this embodiment does not limit the driving principle of the driving component. For example, the driving component can be electric, such as an electric pressure rod, which achieves mechanical movement through motor drive; it can also be pneumatic, such as a cylinder, which uses the pressure of compressed air to drive the clamp movement; or it can be hydraulically driven, which achieves power transmission through a hydraulic cylinder. These different driving methods can be selected according to the actual application scenario and requirements, and this application is not limited to a specific driving form.

[0038] In some embodiments, the leak-sealing box mechanism 200 further includes a release box 23, which has a communicating opening 231 and a chamber 232. The leak-sealing box 22 is installed in the chamber 232, and the opening 231 is controlled to open and close by a second drive assembly 21.

[0039] In this embodiment, the design of the leak-sealing box mechanism 200 incorporates a key structure called the release box 23, which has a communicating opening 231 and a chamber 232 inside. The main function of the chamber 232 is to accommodate the leak-sealing box 22, while the opening 231 is used to control the entry and exit of the leak-sealing box 22. The core of this design lies in the precise control of the opening and closing of the opening 231 through the second drive component 21, thereby automating the release and retrieval process of the leak-sealing box 22.

[0040] The design of the release box 23 provides greater flexibility and controllability for the leak-sealing operation. During the leak-sealing process, the leak-sealing box 22 is pre-placed in the chamber 232, and the opening 231 can be precisely opened or closed by the drive of the second drive assembly 21. When the opening 231 is open, the leak-sealing box 22 can be pushed out of the release box 23 and precisely cover the leak point in the pipeline, completing the leak-sealing operation. In this way, after the leak-sealing operation is completed, the other parts of the pressurized leak-sealing device for oil and gas pipelines can be easily removed, leaving the leak-sealing box 22 alone on the pipeline 01, relying on the adhesive of the repair agent in the leak-sealing box 22 to firmly adhere to the surface of the pipeline 01.

[0041] Furthermore, the structural design of the release box 23 also considers the stability and safety of the plugging box 22 within the chamber 232. Through the reasonable dimensional design of the opening 231 and the chamber 232, it is ensured that the plugging box 22 can be securely stored within the chamber 232 when not released, preventing accidental movement due to external factors. Simultaneously, the coordinated operation of the opening and closing control mechanism of the opening 231 and the second drive assembly 21 further enhances the reliability and operational precision of the entire plugging box mechanism 200.

[0042] In some embodiments, the release box 23 is provided with an elastic element 24 that extends into the chamber 232 and is used to drive the leak-stopping box 22 toward the opening 231.

[0043] In this embodiment, the main function of the elastic element 24 is to drive the leak-stopping box 22 toward the opening 231 by its own elastic force when the opening 231 is opened, thereby realizing the automatic release of the leak-stopping box 22.

[0044] The key to this design lies in utilizing the elastic potential energy of the elastic element 24 to simplify the release process of the sealing box 22. When the opening 231 is opened under the control of the second drive component 21, the elastic force of the elastic element 24 immediately acts on the sealing box 22, pushing it to move towards the opening 231. This process requires no additional power input; the release action of the sealing box 22 can be completed by relying on the elastic restoring force of the elastic element 24 itself, greatly improving the automation and efficiency of the operation.

[0045] As an optional implementation, the elastic element 24 can be a spring. Springs, as a common elastic element, have advantages such as simple structure, reliable performance, and low cost. When the spring is compressed, it stores elastic potential energy, and when the opening 231 opens, the spring releases this potential energy, pushing the sealing box 22 outward. By rationally designing the spring's stiffness and pre-compression, the release speed and force of the sealing box 22 can be precisely controlled, ensuring that it can smoothly and reliably cover the pipe leak.

[0046] In some embodiments, the release box 23 is provided with a slide groove 233, which is located on the side of the chamber 232 facing the opening 231. The second drive assembly 21 includes a second drive structure 211 and a sliding cover 212. The second drive structure 211 is used to drive the sliding cover 212 to slide along the slide groove 233 to control the opening and closing of the opening 231.

[0047] In this embodiment, this structural design provides precise motion guidance for controlling the opening and closing of the opening 231. Meanwhile, the second drive assembly 21 includes a second drive structure 211 and a sliding cover 212. The sliding cover 212 corresponds to the opening 231, and its main function is to control the opening and closing of the opening 231 through its own movement.

[0048] The second drive structure 211 acts as a power source, driving the sliding cover 212 to slide along the slide groove 233. The design of the slide groove 233 not only provides a stable path for the movement of the sliding cover 212 but also ensures that the sliding cover 212 maintains precise positioning and directional control during movement. When the second drive structure 211 is working, it transmits power to the sliding cover 212 through mechanical transmission, causing it to slide along the slide groove 233. When the sliding cover 212 slides towards the opening 231, the opening 231 is opened; and when the sliding cover 212 slides in the opposite direction, the opening 231 is closed. This design makes the opening and closing of the opening 231 smoother and more reliable, avoiding accidental opening or closing due to mechanical vibration or external interference.

[0049] Through the cooperation of the sliding groove 233 and the sliding cover 212, the second drive assembly 21 can achieve precise control over the opening and closing of the opening 231. This precise control mechanism is crucial for the entire leak-sealing operation, as it directly determines the timing of the release of the leak-sealing box 22 and the accuracy of the retrieval process. When the opening 231 needs to be opened to release the leak-sealing box 22, the sliding cover 212 can move quickly and smoothly, ensuring that the leak-sealing box 22 can be smoothly pushed out of the chamber 232 and cover the leak point in the pipe. After the leak-sealing operation is completed, the sliding cover 212 can quickly close the opening 231 to prevent external factors from affecting the environment inside the chamber 232, and also prepare for the next leak-sealing operation.

[0050] In some embodiments, the second driving structure 211 includes a protective shell 2111, a force transmission element 2112, and a shape memory alloy spring 2113. The shape memory alloy spring 2113 is disposed in the protective shell 2111. The force transmission element 2112 connects the shape memory alloy spring 2113 and the sliding cover 212. The shape memory alloy spring 2113 can deform when energized, and the force transmission element 2112 is driven to move through the shape memory alloy spring 2113, which in turn drives the sliding cover 212 to move.

[0051] In this embodiment, the second drive structure 211 uses a shape memory alloy spring 2113 as the core drive element to achieve precise control of the sliding cover 212. The shape memory alloy spring 2113 is installed inside the protective shell 2111 and connected to the sliding cover 212 through the force transmission component 2112. The key to this design is utilizing the characteristics of the shape memory alloy spring 2113: when it is energized, it deforms, thereby generating a driving force.

[0052] Specifically, the shape memory alloy spring 2113 deforms when energized. This deformation is transmitted to the sliding cover 212 via the force transmission component 2112, which in turn causes the sliding cover 212 to slide along the slide groove 233. This process achieves precise control over the opening and closing of the opening 231. The protective shell 2111 provides a stable installation environment for the shape memory alloy spring 2113, while protecting it from external interference, ensuring its reliability and stability during operation.

[0053] Driven by the shape memory alloy spring 2113, the sliding cover 212 can achieve rapid and precise movement. This design not only improves the system's response speed but also reduces the complexity of mechanical transmission and lowers the system's failure rate. Furthermore, the drive mechanism of the shape memory alloy spring 2113 offers advantages such as compact structure, low energy consumption, and simple control, making it suitable for automated and intelligent leak-sealing operations.

[0054] Specifically, the shape memory alloy spring 2113 is made of shape memory alloy. Shape memory alloy (SMA) is a metallic material with special properties, capable of "remembering" its original shape within a specific temperature range and recovering that shape upon heating or cooling. SMA materials can generate high stress and have low maximum strain, resulting in relatively stable structures, low driving voltage, and high energy density. It operates without noise, and the material is driven by heating with electricity. It is easy to operate, inexpensive, and has no harm to the environment.

[0055] Under a very small driving voltage, the shape memory alloy spring 2113 can generate a relatively large deformation and a stable force; by changing the voltage or the energizing time, the deformation speed can be controlled without changing the magnitude of the deformation, and the output displacement of the spring can be controlled, allowing the mechanism to move along the designed path, making it suitable for use in pressurized leak sealing robots.

[0056] It is important to note that the key to this embodiment lies in the integration of pressurized, non-flammable technology and mechanical technology in the live leak sealing device for oil and gas pipelines. This standardizes the live leak sealing operation for oil and gas pipelines, providing a leak sealing solution that allows for uninterrupted production and pressure control. The entire leak sealing process has virtually no impact on the temperature and pressure inside and outside the pipeline, and there are no dangerous factors such as open flames. It can truly achieve pressurized leak sealing without interrupting production, reducing downtime caused by pipeline maintenance and significantly improving the company's production efficiency.

[0057] In some embodiments, the first drive assembly 11 includes a first drive structure 111 and a side link 112, wherein the first drive structure 111 is connected to the side link 112 in a transmission manner, and the side link 112 is connected to the clamp 12.

[0058] In this embodiment, the first drive assembly 11 is designed with a combination of a first drive structure 111 and a side connecting rod 112. The first drive structure 111 serves as a power source and is connected to the side connecting rod 112 via a transmission connection, while the other end of the side connecting rod 112 is connected to the clamp 12. The core of this design is that the first drive structure 111 drives the power to the side connecting rod 112, thereby driving the clamp 12 to perform a clamping action on the pipe 01.

[0059] The transmission connection of the first drive structure 111 ensures effective power transmission, enabling the side connecting rod 112 to move accordingly under the drive of the drive structure. The function of the side connecting rod 112 is to convert the power of the first drive structure 111 into the clamping force required by the clamp 12, thereby achieving stable clamping of the pipe. This design not only improves the mechanical efficiency of the clamping mechanism, but also enhances the clamping force of the clamp 12 on the pipe 01 through the lever effect of the side connecting rod 112, ensuring that the pipe can be firmly fixed during the leak sealing process.

[0060] Meanwhile, the connection between the side connecting rod 112 and the clamp 12 provides flexibility and adaptability to the entire clamping mechanism. By rationally designing the length and position of the side connecting rod 112, the clamping angle and force of the clamp 12 can be adjusted to adapt to pipes of different diameters and shapes. This design not only improves the versatility of the device but also provides a stable support foundation for subsequent leak sealing operations.

[0061] In some embodiments, the pipe clamping mechanism 100 further includes a frame 13, and the first drive assembly 11 further includes a slider 113, which is movable relative to the frame 13 and is connected to a side link 112.

[0062] In this embodiment, the design of the pipe clamping mechanism 100 is further improved by introducing a frame 13 as the support frame for the entire clamping mechanism. The frame 13 not only provides an installation base for the first drive assembly 11, but also ensures the structural stability of the entire clamping mechanism. In addition, the first drive assembly 11 also includes a slider 113, which is connected to the side connecting rod 112 and can move relative to the frame 13.

[0063] The slider 113 is designed to provide a flexible motion mechanism for the pipe clamping mechanism 100. Through its connection with the side link 112, the slider 113 can convert the power of the first drive structure 111 into linear motion, thereby enabling the clamp 12 to clamp or release the pipe 01. This linear motion mechanism allows the clamp 12 to smoothly approach or move away from the pipe 01 along a predetermined trajectory, guided by the frame 13, ensuring the accuracy and reliability of the clamping action.

[0064] Meanwhile, the relative motion design between the slider 113 and the frame 13 provides good adaptability for the pipe clamping mechanism 100. This design allows the clamping mechanism to operate on pipes of different diameters. By adjusting the position of the slider 113, precise positioning and clamping of the pipe can be achieved, thereby improving the versatility and applicability of the device. In addition, the movement of the slider 113 also provides a buffer function for the entire clamping mechanism, enabling automatic adjustment of the position of the clamp 12 in cases of irregular or inaccurate pipe surfaces, ensuring a tight fit between the clamp and the pipe surface.

[0065] In summary, by introducing the frame 13 and slider 113 into the pipeline clamping mechanism 100, not only is the stability and flexibility of the entire mechanism enhanced, but its adaptability to different pipelines and operational accuracy are also improved. This design provides important structural support for the efficient and safe operation of pressurized leak sealing devices for oil and gas pipelines.

[0066] In some embodiments, the first drive structure 111 includes a servo motor 1111, a rotating rod 1112, and an upper connecting rod 1113. The output end of the servo motor 1111 is rotatably connected to the rotating rod 1112, the rotating rod 1112 is rotatably connected to the upper connecting rod 1113, and the upper connecting rod 1113 is rotatably connected to the slider 113.

[0067] In this embodiment, the first drive structure 111 is specifically designed to include a servo motor 1111, a rotating rod 1112, and an upper connecting rod 1113. The servo motor 1111 serves as a power source, and its output end is connected to the rotating rod 1112 via a rotatable connection, allowing the rotating rod 1112 to rotate synchronously with the output shaft of the servo motor 1111. The other end of the rotating rod 1112 is connected to the upper connecting rod 1113, also via a rotatable connection, thereby transmitting the power of the servo motor to the upper connecting rod 1113. Finally, the upper connecting rod 1113 is connected to the slider 113, achieving power transmission and motion conversion through a rotatable connection.

[0068] The core of this design lies in the multi-stage rotary connection, which gradually transmits and converts the rotational motion of the servo motor 1111 into the linear motion of the slider 113. The precise control capability of the servo motor 1111 enables the entire drive structure to achieve precise power output, which, through the transmission of the rotating rod 1112 and the upper connecting rod 1113, drives the slider 113 to move smoothly along the guide rail of the frame 13. The movement of the slider 113 not only provides a stable clamping force for the clamp 12, but also, through the linkage of the side connecting rod 112, enables the clamp 12 to clamp or release the pipe 01.

[0069] Furthermore, by employing a servo motor 1111 as the drive source, the first drive structure 111 achieves efficient and reliable motion control. The precise control characteristics of the servo motor enable the clamping action of the clamp 12 to be more accurate, adapting to pipes of different diameters and shapes, while ensuring stability and reliability during leak sealing operations. This design not only improves the operational flexibility of the pipe clamping mechanism 100 but also enhances the automation level and adaptability of the entire pressurized leak sealing device for oil and gas pipelines.

[0070] In some cases, the design of the leak-sealing box 22 specifically considers its fit with the pipe 01. Specifically, the leak-sealing box 22 has a leak-sealing surface designed to conform to the outer surface of the pipe 01 in an arc shape. This design ensures that when the leak-sealing box 22 is pressed against the leak point of the pipe 01, it fits tightly against the outer surface of the pipe, thereby improving the reliability and sealing performance of the leak-sealing effect. This arc-shaped surface design also allows the repair agent to be distributed more evenly at the leak point, further enhancing the stability and durability of the leak sealing.

[0071] In some embodiments, the sealing box 22 is provided with a receiving cavity containing a repair agent.

[0072] In this embodiment, the sealing box 22 has an internal receiving cavity for storing repair agent, allowing the agent to flow to and coat the sealing surface of the sealing box 22. This design enables the sealing box 22 to directly and accurately deliver the repair agent to the pipe leak during use, ensuring that the repair agent can quickly and effectively contact the leak and take effect. The receiving cavity allows for better control of the amount and distribution of the repair agent, thereby improving sealing efficiency and quality while avoiding waste.

[0073] As an option, the repair agent used is Belzona Metal Repair Agent 1111.

[0074] In some embodiments, the clamp 12 is made of rubber.

[0075] In this embodiment, rubber possesses good elasticity and flexibility, providing appropriate cushioning and sealing when the clamp 12 contacts the pipe 01. This material choice allows the clamp 12 to better adapt to the irregular shape of the pipe surface, ensuring a tight fit when gripping the pipe, thereby improving the reliability and sealing performance of the leak sealing. Simultaneously, the rubber material also exhibits certain wear resistance and corrosion resistance, enabling it to adapt to complex working environments and extending the service life of the clamp 12.

[0076] In some embodiments, the surface shape of the clamp 12 is an arcuate surface that matches the outer surface of the pipe 01.

[0077] In this embodiment, this design allows the clamp 12 to achieve a better fit when in contact with the pipe 01, ensuring that the clamp 12 can apply a uniform clamping force, thereby improving the stability and sealing performance of the leak sealing. Through this arc-shaped surface design, the clamp 12 can better adapt to the curvature of the pipe, reducing the risk of leakage due to uneven contact and further enhancing the reliability of the leak sealing.

[0078] This application also provides a live leak sealing system for oil and gas pipelines, including a robot and the aforementioned live leak sealing device for oil and gas pipelines. The robot is equipped with a robotic arm, which is connected to the live leak sealing device for oil and gas pipelines.

[0079] In this embodiment, the robotic arm is connected to the pressurized leak sealing device for oil and gas pipelines as an end effector. It can not only move the leak sealing box 22 to the leak point of pipeline 01 before sealing, but also separate the robotic arm from the leak sealing box 22 after sealing is completed.

[0080] This design allows the entire leak-sealing process to be operated robotically, achieving automation and remote control. The robot can precisely locate the pressurized leak-sealing device at the pipeline leak point according to preset programs or operating instructions and complete the sealing operation. By introducing robots, this system not only improves leak-sealing efficiency but also reduces the risks of manual operation, making it particularly suitable for pipeline leak-sealing operations in complex environments or high-risk scenarios.

[0081] In some embodiments, the robot is provided with a vision system, a mobility system and an electromechanical system, the electromechanical system being controlled and connected to the first drive component 11 and the second drive component 21.

[0082] In this embodiment, the vision system can acquire the location and status information of the pipeline leak in real time, providing visual support for the robot's precise positioning and operation. The mobility system enables the robot to move in complex environments, allowing it to flexibly reach the location of the pipeline leak. The electromechanical system is controlled and connected to the first drive component 11 and the second drive component 21, and can precisely control the actions of the first drive component 11 and the second drive component 21 according to the information fed back by the vision system and the preset operating program, thereby driving the clamp to grip the pipeline and complete the leak sealing operation. This integrated design makes the entire leak sealing process more intelligent and automated, improves the accuracy and reliability of the operation, reduces the need for manual intervention, and enhances the safety and adaptability of the system.

[0083] The pressurized leak sealing system for oil and gas pipelines should possess all the beneficial technical effects of the aforementioned pressurized leak sealing devices for oil and gas pipelines. By standardizing the pressurized leak sealing operation of oil and gas pipelines, it changes the previous manual leak sealing method and provides a leak sealing solution for oil and gas pipelines that can be performed without interrupting production or pressure by using a clamping mechanism.

[0084] It should be noted that many of the components mentioned in this application are general standard parts or components known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or through conventional experimental methods.

[0085] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0086] The above provides a detailed description of the pressurized leak sealing device and system for oil and gas pipelines provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A device for plugging a leak in a hydrocarbon pipeline while the pipeline is under pressure, the device comprising: The utility model relates to a pipeline clamping mechanism, a leaking stoppage box mechanism and a robot. The pipeline clamping mechanism comprises a first driving assembly and a clamp, and the first driving assembly is used to drive the clamp to clamp a pipeline. The leaking stoppage box mechanism is arranged on the pipeline clamping mechanism, and the leaking stoppage box mechanism comprises a second driving assembly and a leaking stoppage box.

2. The device of claim 1, wherein, The leaking stoppage box mechanism further comprises a releasing box, and the releasing box is provided with an opening and a cavity.

3. The device of claim 2, wherein, The cavity is used to contain the leaking stoppage box, and the opening is controlled to be opened or closed by the second driving assembly.

4. The device of claim 2, wherein, The releasing box is provided with an elastic member, and the elastic member extends into the cavity.

5. The device of claim 4, wherein, The elastic member is used to drive the leaking stoppage box to move towards the opening.

6. The device of claim 1, wherein, The releasing box is provided with a sliding groove, and the sliding groove is located on the side of the cavity facing the opening.

7. The device of claim 6, wherein, The second driving assembly comprises a second driving structure and a sliding cover.

8. The device of claim 7, wherein, The second driving structure is used to drive the sliding cover to slide along the sliding groove to control the opening and closing of the opening.

9. A leak stopping system for use in an oil and gas pipeline under pressure, characterized in that, The second driving structure comprises a protective shell, a transmission member and a shape memory alloy spring.

10. The oil and gas pipeline pressure-containing leak stopping system of claim 9, wherein, The shape memory alloy spring is arranged in the protective shell, and the transmission member is connected with the shape memory alloy spring and the sliding cover. The shape memory alloy spring can be deformed when energized. The transmission member is driven to move by the shape memory alloy spring, and then the sliding cover is driven to move by the transmission member. The first driving assembly comprises a first driving structure and a side connecting rod. The first driving structure is in transmission connection with the side connecting rod. The side connecting rod is connected with the clamp. The pipeline clamping mechanism further comprises a rack, and the first driving assembly further comprises a sliding block. The sliding block can move relative to the rack, and the sliding block is connected with the side connecting rod. The first driving structure comprises a steering wheel, a rotating rod and an upper connecting rod. The output end of the steering wheel is in rotational connection with the rotating rod. The rotating rod is in rotational connection with the upper connecting rod. The upper connecting rod is in rotational connection with the sliding block. The utility model relates to a robot and an oil and gas pipeline leaking stoppage device under pressure. The robot is provided with a mechanical arm, and the mechanical arm is connected with the oil and gas pipeline leaking stoppage device under pressure. The robot is provided with a visual system, a moving system and an electromechanical system. The electromechanical system is in control connection with the first driving assembly and the second driving assembly.

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