Magnetic induction probe array structure for monitoring corrosion in pipe networks

Abstract

The utility model discloses a pipe network corrosion monitoring's magnetic induction probe array structure, including coaxial setting's first fixed ring, second fixed ring and third fixed ring, every two fixed rings between all are fixedly connected with three support, a plurality of support on respectively be provided with a plurality of drive unfolding mechanism, drive unfolding mechanism is provided with three groups. The utility model places the device whole in the inside of pipeline, through drive unfolding mechanism to multiple drive wheel unfolding, multiple drive wheel can expand outward after unfolding, close in the inner wall of pipeline, and the device moves in the inside of pipeline through multiple drive wheel, in the process of moving, through the detection component carries out detection to the inside of pipeline to realize the function of detecting the pipeline of different size to multiple drive wheel abuts at the side wall of pipeline, can realize steady advance, has increased the stability of detection process.

Description

Technical Field

[0001] This utility model relates to the field of pipeline corrosion monitoring technology, and in particular to a magnetic induction probe array structure for pipeline corrosion monitoring. Background Technology

[0002] As a critical urban infrastructure, pipeline networks are susceptible to corrosion due to environmental factors during long-term operation, leading to thinning of the pipe walls, decreased strength, and even leaks, threatening safety and wasting resources. Therefore, pipeline corrosion detection is crucial. Current detection methods are diverse: direct measurement involves manually or with robotic arms to measure wall thickness, which is intuitive but inefficient; ultrasonic testing utilizes the propagation characteristics of ultrasound waves within the pipe wall, assessing wall thickness through echo time difference, which is non-destructive and highly efficient; radiographic testing uses X-rays or gamma rays to penetrate the pipe wall and identify defects through changes in radiation intensity, but carries radiation risks; electrochemical testing, based on electrochemical principles, assesses corrosion status by measuring parameters such as potential and current, suitable for online monitoring; and intelligent internal detection utilizes intelligent detectors equipped with sensors that move inside the pipe to collect and analyze data in real time, achieving comprehensive detection.

[0003] Magnetic induction detection offers significant advantages in pipeline corrosion detection. Based on the principle of electromagnetic induction, this technology applies an alternating magnetic field to the pipeline surface, inducing eddy currents in the pipe wall and creating a reverse induced magnetic field. During pipe wall corrosion, changes in the distribution and intensity of the eddy currents alter the induced magnetic field; detecting these changes allows for the inference of the corrosion state. Magnetic induction detection is non-contact, rapid, and highly sensitive, making it particularly suitable for detecting surface and near-surface corrosion in metal pipelines. In practical applications, the detectors are designed to be portable or vehicle-mounted for rapid deployment.

[0004] Patent document CN115326692B discloses a pipeline corrosion detection device and method. The pipeline corrosion detection device includes a detection component, a clamping component, a moving component, and a driving component. The detection component includes a detection ring with multiple first detection elements and multiple second detection elements. The clamping component includes a support mechanism and a clamping mechanism, with a clamping plate in the clamping mechanism. The moving component includes a moving block and a moving rail. The driving component includes a first driving rod and a connecting member. The clamping plate can clamp the detection ring from both sides. The pipeline corrosion detection method includes clamping the detection ring, passing the detection ring through the pipeline, and inputting the data detected by the first and second detection elements to a terminal in real time. Using this invention, the corrosion condition of the pipeline can be detected from the outside, and the detection is comprehensive and reusable.

[0005] As in the prior art of the aforementioned patent, the detection equipment is located outside the pipeline for corrosion detection. However, due to space limitations, some pipelines need to be inspected from inside the pipeline. Furthermore, different pipelines have different dimensions during the pipeline inspection process. How to ensure that the magnetic induction detection device can be stably fixed inside the pipeline and can move stably inside the pipeline for detection is a problem that needs to be solved at this stage. Utility Model Content

[0006] The purpose of this invention is to provide a magnetic induction probe array structure for monitoring pipeline corrosion, so as to solve the above-mentioned shortcomings in the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a magnetic induction probe array structure for monitoring pipeline corrosion, comprising a first fixed ring, a second fixed ring, and a third fixed ring arranged coaxially, with three support members fixedly connected between each pair of fixed rings, and multiple drive deployment mechanisms respectively provided on the multiple support members, with three sets of drive deployment mechanisms provided, and a detection component provided on the side of the third fixed ring away from the second fixed ring.

[0008] As a further description of the above technical solution: the drive deployment mechanism includes a bidirectional screw rotatably disposed between a first fixed ring and a third fixed ring. Both ends of the bidirectional screw are rotatably connected to a support member. Drive blocks are threadedly installed on the screw sections at both ends of the bidirectional screw. A first hinge portion is provided on the drive block. A second hinge portion and a second connecting rod are provided on both the first fixed ring and the third fixed ring. A third hinge portion is provided on the second connecting rod. A first connecting rod is movably connected between the third hinge portion and the first hinge portion on the drive block. A drive wheel is provided at one end of the second connecting rod. Brake disc assemblies are provided on the two drive wheels.

[0009] As a further description of the above technical solution: multiple drive motors are fixedly installed on the second fixing ring, and the bidirectional screw is connected to the drive rod of the drive motor.

[0010] As a further description of the above technical solution: a bracket is fixedly installed on the side of the first fixing ring away from the second fixing ring, and a camera assembly is fixedly installed on the bracket.

[0011] As a further description of the above technical solution: a motherboard is fixedly installed between the first fixing ring, the second fixing ring and the third fixing ring respectively. A control system assembly is fixedly installed on the motherboard located between the first fixing ring and the second fixing ring. The control system assembly is covered by a housing, and a heat dissipation groove is provided on the housing. An indicator light is provided on the top of another motherboard.

[0012] As a further description of the above technical solution: a connecting frame for fixing the detection component is fixedly installed on the side of the third fixing ring away from the second fixing ring. The detection component includes a mounting ring, and multiple connectors are fixedly installed on the mounting ring. Fixing bolts are threaded between the multiple connectors and the connecting frame. Multiple magnetic induction coil modules are arranged in a ring array around the axis of the mounting ring. Each of the multiple magnetic induction coil modules is equipped with a magnetic induction sensor. An insulating protective ring is fixedly installed on the mounting ring and is disposed outside the multiple magnetic induction coil modules.

[0013] This invention provides a magnetic induction probe array structure for monitoring pipeline corrosion. It offers the following advantages: the entire device is placed inside the pipeline, and multiple drive wheels are deployed via a drive deployment mechanism. After deployment, the drive wheels extend outwards and closely adhere to the inner wall of the pipeline. The device moves inside the pipeline via these drive wheels, and during this movement, the detection components inspect the interior of the pipeline. This enables the detection of pipelines of different sizes. Furthermore, the multiple drive wheels abutting against the side wall of the pipeline ensure stable forward movement, increasing the stability of the detection process.

[0014] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0015] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the magnetic induction probe array structure for pipeline corrosion monitoring proposed in this utility model.

[0017] Figure 2 This is a three-dimensional structural schematic diagram from another perspective of the present invention;

[0018] Figure 3 This is a three-dimensional structural diagram of the two motherboard structures of this utility model;

[0019] Figure 4 This is a three-dimensional structural schematic diagram of the drive deployment mechanism of this utility model;

[0020] Figure 5 This is a three-dimensional exploded view of the detection component of this utility model.

[0021] Legend:

[0022] 1. First fixing ring; 2. Second fixing ring; 3. Third fixing ring; 4. Support component; 5. Bidirectional screw; 6. Drive motor; 7. Drive block; 8. First hinge; 9. First connecting rod; 10. Second hinge; 11. Second connecting rod; 12. Third hinge; 13. Drive wheel; 14. Drive rod; 15. Bracket; 16. Camera assembly; 17. Main board; 18. Control system assembly; 19. Indicator light; 20. Housing; 21. Heat sink; 22. Connecting frame; 23. Mounting ring; 24. Connector; 25. Fixing bolt; 26. Magnetic induction coil module; 27. Magnetic induction sensor; 28. Insulating protective ring; 29. ​​Brake disc assembly. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-5 The magnetic induction probe array structure for pipeline corrosion monitoring includes a first fixed ring 1, a second fixed ring 2, and a third fixed ring 3 arranged coaxially. Three support members 4 are fixedly connected between every two fixed rings. Multiple drive deployment mechanisms are respectively arranged on the multiple support members 4. There are three sets of drive deployment mechanisms. A detection component is arranged on the side of the third fixed ring 3 away from the second fixed ring 2. The device is placed inside the pipeline. Multiple drive wheels 13 are deployed by the drive deployment mechanism. After deployment, the multiple drive wheels 13 can extend outward and fit tightly against the inner wall of the pipeline. The device moves inside the pipeline by the multiple drive wheels 13. During the movement, the detection component detects the inside of the pipeline, thereby realizing the function of detecting pipelines of different sizes. Moreover, the multiple drive wheels 13 abut against the side wall of the pipeline, which can achieve stable forward movement and increase the stability of the detection process.

[0025] As a preferred embodiment, the drive deployment mechanism includes a bidirectional screw 5 rotatably disposed between a first fixed ring 1 and a third fixed ring 3. Both ends of the bidirectional screw 5 are rotatably connected to a support member 4. Drive blocks 7 are threadedly installed on the screw sections at both ends of the bidirectional screw 5. A first hinge portion 8 is provided on the drive block 7. A second hinge portion 10 and a second connecting rod 11 are provided on both the first fixed ring 1 and the third fixed ring. A third hinge portion 12 is provided on the second connecting rod 11. A first connecting rod 9 is movably connected between the third hinge portion 12 and the first hinge portion 8 on the drive block 7. A drive wheel 13 is provided at one end of the second connecting rod 11. Brake disc assemblies 29 are provided on the two drive wheels 13. By rotating the bidirectional screw 5, the movement of the two drive blocks 7 can be controlled. The two drive blocks 7 move away from the second fixed ring 2, which enables the second connecting rod 11 to expand outward, and further enables the drive wheels 13 to expand outward, so that the drive wheels 13 are tightly attached to the inner wall of the pipe.

[0026] As a preferred technical solution in this embodiment, a plurality of drive motors 6 are fixedly installed on the second fixed ring 2, and the bidirectional screw 5 is connected to the drive rod 14 of the drive motor 6 for transmission; the bidirectional screw 5 can be rotated by the drive rod 14 of the drive motor 6.

[0027] As a preferred technical solution in this embodiment, a bracket 15 is fixedly installed on the side of the first fixing ring 1 away from the second fixing ring 2, and a camera assembly 16 is fixedly installed on the bracket 15; the camera can be used to observe the situation inside the pipe, which facilitates the staff to control the start and stop of the device.

[0028] As a preferred technical solution of this embodiment, a main board 17 is fixedly installed between the first fixing ring 1, the second fixing ring 2, and the third fixing ring 3. A control system assembly 18 is fixedly installed on the main board 17 located between the first fixing ring 1 and the second fixing ring 2. The control system assembly 18 is externally covered by a housing 20. A heat dissipation groove 21 is provided on the housing 20. An indicator light 19 is provided on the top of the other main board 17. The control system assembly 18 is a prior art technology. It can control the rotation of the drive wheel 13, start the drive motor 6, and connect to the camera assembly 16 for transmitting camera images. The housing 20 can protect it. The heat dissipation groove 21 can ensure normal internal heat dissipation. The indicator light 19 can display the start and stop status of the device.

[0029] As a preferred embodiment, a connecting frame 22 for fixing a detection component is fixedly installed on the side of the third fixing ring 3 away from the second fixing ring 2. The detection component includes a mounting ring 23, on which multiple connectors 24 are fixedly installed. Fixing bolts 25 are threaded between the multiple connectors 24 and the connecting frame 22. Multiple magnetic induction coil modules 26 are arranged in a circular array around the axis of the mounting ring 23. Each of the multiple magnetic induction coil modules 26 is equipped with a magnetic induction sensor 27. A connecting frame 22 is fixedly installed on the mounting ring 23. An insulating protective ring 28 is installed on the outside of multiple magnetic induction coil modules 26. This detection component is existing technology. Its function is to detect the magnetic field generated by the magnetic induction coil modules 26. If there is corrosion in the pipeline, it will cause uneven distribution of the magnetic field. The magnetic induction sensor 27 can transmit the magnetic field change to the control system assembly 18. The control system assembly 18 transmits the data to the outside, thereby realizing the detection of corrosion. The installation of the insulating protective ring 28 can increase the protection of the internal magnetic induction coil modules 28 without affecting the magnetic field change.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A magnetic induction probe array structure for monitoring pipeline corrosion, comprising a first fixing ring (1), a second fixing ring (2), and a third fixing ring (3) arranged coaxially, characterized in that, Three support members (4) are fixedly connected between each pair of fixed rings. Multiple drive deployment mechanisms are provided on each of the multiple support members (4). There are three sets of drive deployment mechanisms. A detection component is provided on the side of the third fixed ring (3) away from the second fixed ring (2).

2. The magnetic induction probe array structure for pipeline corrosion monitoring according to claim 1, characterized in that, The drive deployment mechanism includes a bidirectional screw (5) rotatably disposed between a first fixed ring (1) and a third fixed ring (3). Both ends of the bidirectional screw (5) are rotatably connected to a support member (4). Drive blocks (7) are threadedly installed on the screw sections at both ends of the bidirectional screw (5). A first hinge part (8) is provided on the drive block (7). A second hinge part (10) and a second connecting rod (11) are provided on both the first fixed ring (1) and the third fixed ring. A third hinge part (12) is provided on the second connecting rod (11). A first connecting rod (9) is movably connected between the third hinge part (12) and the first hinge part (8) on the drive block (7). A drive wheel (13) is provided at one end of the second connecting rod (11). Brake disc assemblies (29) are provided on the two drive wheels (13).

3. The magnetic induction probe array structure for pipeline corrosion monitoring according to claim 2, characterized in that, Multiple drive motors (6) are fixedly installed on the second fixed ring (2), and the bidirectional screw (5) is connected to the drive rod (14) of the drive motor (6) for transmission.

4. The magnetic induction probe array structure for pipeline corrosion monitoring according to claim 1, characterized in that, A bracket (15) is fixedly installed on the side of the first fixing ring (1) away from the second fixing ring (2), and a camera assembly (16) is fixedly installed on the bracket (15).

5. The magnetic induction probe array structure for pipeline corrosion monitoring according to claim 1, characterized in that, A main board (17) is fixedly installed between the first fixing ring (1), the second fixing ring (2) and the third fixing ring (3). A control system assembly (18) is fixedly installed on the main board (17) between the first fixing ring (1) and the second fixing ring (2). The control system assembly (18) is covered by a housing (20). A heat dissipation groove (21) is provided on the housing (20). An indicator light (19) is provided on the top of another main board (17).

6. The magnetic induction probe array structure for pipeline corrosion monitoring according to claim 1, characterized in that, A connecting frame (22) for fixing the detection component is fixedly installed on the side of the third fixing ring (3) away from the second fixing ring (2). The detection component includes a mounting ring (23). Multiple connectors (24) are fixedly installed on the mounting ring (23). Fixing bolts (25) are threaded between the multiple connectors (24) and the connecting frame (22). Multiple magnetic induction coil modules (26) are arranged in a ring array around the axis of the mounting ring (23). Each of the multiple magnetic induction coil modules (26) is provided with a magnetic induction sensor (27). An insulating protective ring (28) is fixedly installed on the mounting ring (23). The insulating protective ring (28) is located outside the multiple magnetic induction coil modules (26).

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