Oil pipeline cleaner based on magnetoelectric effect and pipeline

Abstract

The utility model discloses an oil pipeline cleaner based on the magnetoelectric effect and a pipeline. The pipeline cleaner comprises a shell, and a control device is arranged in the shell; the circumference of the detection device is arranged on the inner wall of the shell and is in signal connection with the control device; the cleaning device is of a spherical structure and is matched with the detection device, a plurality of rectangular pyramid convex nails are arranged on the outer wall of the cleaning device, and a magnetic unit is arranged in the cleaning device and is used for generating a magnetic signal source. When the pipe cleaner is blocked by oil dirt which is difficult to clean or passes through a dirt accumulation area, parameters such as intensity and frequency of magnetic signals can be correspondingly changed due to change of the environment in a pipeline, the detection device can accurately capture the change of the magnetic signals in real time, the control device analyzes and processes the detected signals, and the detection result is displayed. The specific position of blockage can be accurately judged, the continuity of petroleum conveying is guaranteed, and a large amount of cost is saved for enterprises.

Description

Technical Field

[0001] This utility model belongs to the field of oil pipeline cleaning technology, specifically relating to an oil pipeline cleaning device and pipeline based on the magnetoelectric effect. Background Technology

[0002] In the petroleum energy transportation system, oil pipelines serve as crucial transportation channels, and their unobstructed flow plays a vital role in ensuring the normal supply of oil and the stable operation of the energy industry. With long-term use, structural acceptance problems inevitably arise within oil pipelines, meaning that deposits and corrosion products gradually accumulate on the inner walls. These substances continuously adhere to the pipe walls, forming grease and scale, severely impacting oil transportation efficiency and potentially leading to pipeline blockages, leaks, and other safety accidents, causing significant economic losses and safety hazards to the petroleum industry.

[0003] Currently, deploying pipeline pigs is a widely used physical method for solving the structural acceptance problem of oil pipelines. Its working principle mainly involves using a launcher installed at the wellhead to insert the pig into the oil pipeline. The oil pressure generated by the crude oil within the pipeline serves as the driving force, propelling the pig forward. During its journey, the special structure on the pig's surface creates a squeezing effect against the inner wall of the pipeline, thus cleaning the pipeline and removing debris to ensure unobstructed flow. Finally, the pig is retrieved by a pig retriever positioned at a fixed location, completing the closed-loop pipeline cleaning operation.

[0004] However, existing pipeline cleaning technology faces many problems that urgently need to be solved during its application. As oil pipelines operate for a long time, impurities and corrosion products in crude oil will continuously accumulate on the inner wall of the pipeline, forming oil and scale layers of different thicknesses and properties. When the pipeline cleaning tool is sent into the oil pipeline, it is very likely to become blocked in the pipeline if it encounters those tightly attached, complex and difficult-to-remove oil and scale. Once the pipeline cleaning tool is blocked, the cleaning task cannot continue, which will not only lead to the failure of the cleaning operation, but may also cause further scratching damage to the inner wall of the pipeline due to the prolonged stay of the pipeline cleaning tool in the pipeline, and may even cause more serious pipeline failures.

[0005] A more challenging issue is that when a pipeline cleaning tool encounters a blockage within the pipeline, current technology struggles to pinpoint the exact location of the blockage. Oil pipelines typically have long distances and complex routes, making direct observation of the internal structure difficult and hindering accurate identification of the blockage's location. Furthermore, it's challenging to identify common areas for scale buildup, thus preventing the development of targeted and effective cleaning solutions. In practice, troubleshooting blockages requires a comprehensive analysis of the entire pipeline, employing various detection methods. This not only consumes significant manpower, resources, and financial resources, increasing cleaning costs, but also prolongs pipeline downtime, disrupting normal oil transport and causing substantial economic losses for oil production companies.

[0006] In addition, most existing pipeline pigs have limited functions, possessing only basic cleaning capabilities and lacking the ability to monitor and provide feedback on the internal conditions of pipelines in real time. During the cleaning process, it is impossible to understand the operating status of the pig, the cleaning effect, and the specific conditions inside the pipeline in a timely manner, thus failing to provide effective data support for subsequent pipeline maintenance and management. Utility Model Content

[0007] The purpose of this invention is to provide an oil pipeline cleaning tool and pipeline based on the magnetoelectric effect, in order to solve the technical defects in the prior art, which is that when the cleaning tool is blocked in the pipeline, it is impossible to accurately know the specific location of the blockage, and at the same time, it lacks the ability to monitor and provide feedback on the internal conditions of the pipeline in real time.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] Firstly, a pipeline pigging tool based on the magnetoelectric effect is provided, comprising:

[0010] The casing contains a control device.

[0011] The detection device is circumferentially disposed on the inner wall of the housing and is signal-connected to the control device.

[0012] The cleaning device has a spherical structure and works in conjunction with the detection device. Its outer wall has multiple four-sided pyramidal protrusions, and its interior is equipped with a magnetic unit, which is used to generate a magnetic signal source.

[0013] Furthermore, the cleaning device includes a housing made of an elastic material.

[0014] Furthermore, the elastic material is rubber.

[0015] Furthermore, the magnetic unit is a permanent magnet.

[0016] Furthermore, the housing includes an upper housing and a lower housing, both of which are semi-circular structures and are detachably connected to each other;

[0017] The detection device is installed on the inner wall of the upper and lower shells, respectively, and there are no fewer than two such devices.

[0018] Furthermore, the detection device includes a fixed sleeve, in which a fixed sleeve is screwed, and a component housing is installed in the fixed sleeve, wherein a Hall unit is provided in the component housing.

[0019] Furthermore, the Hall element is a magnetic field sensor.

[0020] Furthermore, a sealing ring is provided between the fixed sleeve and the fixed sleeve.

[0021] Furthermore, mounting holes are provided on the inner walls of the upper and lower housings, and the detection device is disposed in the mounting holes.

[0022] Secondly, a pipeline is provided, including a pipeline body, which is cleaned using an oil pipeline pigging tool based on the magnetoelectric effect as described above.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The cleaning device is equipped with a magnetic unit that generates a magnetic signal source. As the pig moves along the pipeline, the magnetic unit continuously emits a magnetic signal. When the pig encounters stubborn oil deposits that cause blockages, or passes through areas of scale accumulation, the intensity, frequency, and other parameters of the magnetic signal will change accordingly due to the change in the pipeline environment. The detection device is circumferentially mounted on the inner wall of the housing and connected to the control device. It can capture these changes in magnetic signals in real time and accurately. The control device analyzes and processes the detected signals, accurately determining the specific location of the blockage and common areas of scale accumulation. This avoids large-scale pipeline inspections required by traditional methods, significantly reducing the consumption of manpower, material resources, and financial resources, minimizing pipeline downtime, ensuring the continuity of oil transportation, and saving companies substantial costs.

[0025] 2. During the actual laying of oil pipelines, due to factors such as terrain and design requirements, the pipe diameter may vary slightly, and there are many complex structures such as bends and diameter changes. The outer shell of the cleaning device, made of elastic material, has good flexibility and deformation capacity, and can automatically adjust its shape according to the actual shape and size of the pipeline.

[0026] 3. When the pig encounters lumpy impurities or protrusions on the inner wall of the pipeline, the rubber shell can bypass the obstacle through local elastic deformation, while maintaining the cleaning pressure on the scale layer, which significantly reduces the risk of the pig getting stuck and improves the success rate of the operation.

[0027] 4. During pipeline cleaning operations, the pipeline environment is complex and may be subject to electromagnetic interference or unstable power supply. The continuous and stable magnetic field output of the permanent magnet ensures that the detection device can always receive clear and accurate magnetic signals, thereby enabling precise location and monitoring of abnormal conditions such as scale and blockage in the pipeline, and avoiding misjudgment or missed judgment due to magnetic signal interruption or fluctuation.

[0028] 5. When it is necessary to repair, calibrate or replace the internal detection device, the detection module can be directly exposed by simply disassembling the housing, avoiding the cumbersome operation of overall disassembly and significantly shortening the equipment downtime.

[0029] 6. The stepped encapsulation structure forms a physical barrier, effectively isolating the pipeline from the impact of high-pressure oil flow, the collision of metal particles, and the erosion of corrosive media in crude oil.

[0030] 7. The Hall sensor is based on the Hall effect and generates a potential difference by sensing the vertical component of the magnetic field. It does not need to be in direct contact with the inner wall of the pipe, thus completely avoiding the attenuation of the detection signal by scale, oil, corrosion products, etc. Attached Figure Description

[0031] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 A schematic diagram of the operation of the detection device in the oil pipeline pig based on the magnetoelectric effect provided by this utility model;

[0033] Figure 2 A cross-sectional schematic diagram of the detection device in the oil pipeline pig based on the magnetoelectric effect provided by this utility model;

[0034] Figure 3 A schematic diagram of the Hall unit installation in the oil pipeline pig based on the magnetoelectric effect provided by this utility model;

[0035] Figure 4 A perspective view of the cleaning device in the oil pipeline cleaning tool based on the magnetoelectric effect provided by this utility model;

[0036] Figure 5A cross-sectional view of the cleaning device in the oil pipeline cleaning machine based on the magnetoelectric effect provided by this utility model;

[0037] The components are: 1. Cover plate; 2. Upper housing; 3. Rubber gasket; 4. Connecting pipe; 5. Pin; 6. Lower housing; 7. Hall unit; 71. Fixing sleeve; 72. Threaded fixing sleeve; 73. Sealing ring; 74. Fixing sleeve; 75. Component housing; 76. Magnetic field sensor; 8. Oil pipeline; 9. Cleaning device; 91. Housing; 92. Permanent magnet; 10. Mounting hole; 11. First bonding plate; 12. Second bonding plate. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0043] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] This utility model provides an oil pipeline pigging device and pipeline based on the magnetoelectric effect. The utility model will be described in detail below with reference to the accompanying drawings.

[0045] In a first aspect, embodiments of this utility model provide an oil pipeline pig based on the magnetoelectric effect, such as... Figures 1-4 As shown, it includes a housing with a control device inside; a detection device, which is circumferentially arranged on the inner wall of the housing and is connected to the control device via a signal; and a cleaning device 9, which is a spherical structure that works with the detection device. Its outer wall has multiple four-sided pyramidal protrusions, and its interior has a magnetic unit used to generate a magnetic signal source.

[0046] In the aforementioned structure, the magnetic unit inside the cleaning device 9 continuously emits a magnetic signal source. When the pig travels within the oil pipeline 8, the magnetic signal propagates through this specific medium. If there are abnormalities such as blockages or scale buildup inside the oil pipeline 8, the propagation characteristics of the magnetic signal will change. Secondly, the detection device circumferentially positioned on the inner wall of the casing can capture these magnetic signal changes in all directions and in real time, transmitting the data to the control device. The control device can accurately analyze the location of blockages or specific areas of scale buildup, avoiding the blind inspection of the entire pipeline as in traditional methods, significantly shortening fault location time and improving the efficiency of the pigging operation. In addition, the data fed back by the detection device not only includes the fault location but also reflects the scale distribution, thickness, and properties in different areas of the pipeline. Combining this data, the control device can intelligently plan the pig's travel path and cleaning strategy.

[0047] The spherical cleaning device 9, in conjunction with the four-sided pyramidal protrusions, can provide appropriate cleaning force under different scale conditions. For thinner scale, the four-sided pyramidal protrusions clean with less pressure, reducing wear on the inner wall of the oil pipeline 8; for thicker scale, the pressure is appropriately increased to ensure that the scale is effectively removed. This adaptive cleaning method ensures the cleaning effect while protecting the inner wall of the oil pipeline 8 to the greatest extent, reducing the risk of damage to the pipeline caused by over-cleaning or under-cleaning.

[0048] In traditional pipeline cleaning operations, determining the location of blockages and areas of scale buildup requires a large amount of manpower for on-site inspection and testing, which is not only time-consuming and labor-intensive but also costly. This technical solution achieves precise positioning through the magnetoelectric effect, which greatly reduces the workload of manual inspection and lowers labor costs. At the same time, because it can detect and deal with potential faults in advance, it avoids increased maintenance costs due to the expansion of faults, thereby improving the economic efficiency of oil pipeline operation.

[0049] Furthermore, the cleaning device 9 includes a housing 91 made of an elastic material, namely rubber. During the actual laying of the oil pipeline 8, due to factors such as terrain and design requirements, there may be slight differences in the pipe diameter, and there are many complex structures such as bends and diameter changes. The housing 91 of the cleaning device 9, made of elastic material, has good flexibility and deformation capacity, and can automatically adjust its shape according to the actual shape and size of the pipeline.

[0050] For example, when the pig enters a region with a smaller pipe diameter, the flexible outer shell 91 is moderately compressed to ensure the pig can pass smoothly; while in regions with a larger pipe diameter, the outer shell 91 can return to its original shape, ensuring a tight fit between the cleaning device 9 and the inner wall of the oil pipeline 8. At bends, the flexible outer shell 91 can bend and deform in the direction of the bend in the oil pipeline 8, avoiding collisions or jamming between the rigid outer shell 91 and the inner wall of the oil pipeline 8, allowing the pig to pass smoothly through complex pipe sections, thus improving the adaptability and flexibility of the pigging operation.

[0051] In addition, for oil pipelines 8 with relatively rough surfaces, the elastic outer shell 91 can better fill the unevenness of the inner wall, increase the contact area between the cleaning device 9 and the inner wall of the pipeline, and ensure the cleaning effect; for oil pipelines 8 with high hardness, the elastic outer shell 91 can play a buffering role, reduce the rigid collision between the cleaning device 9 and the inner wall of the oil pipeline 8, and avoid damage to the oil pipeline 8.

[0052] During the cleaning process, the elastic outer shell 91 can fit tightly against the inner wall of the oil pipeline 8, ensuring that the pyramidal protrusions on the cleaning device 9 make full contact with the scale layer. This tight fit increases the force between the cleaning components and the scale layer, improving the scraping and peeling effect on the scale layer. For example, when cleaning the scale layer with strong adhesion on the inner wall of the oil pipeline 8, the elastic outer shell 91 can ensure that the pyramidal protrusions always maintain effective contact with the scale layer. Through continuous squeezing and scraping, the scale layer is removed from the inner wall of the oil pipeline 8. Compared with the cleaning device 9 with a rigid shell, it can remove the scale layer more thoroughly and improve the cleanliness of the pipeline. Furthermore, the scale layer on the inner wall of the oil pipeline 8 may have different thicknesses, hardnesses, and structures. The elastic outer shell 91 can adaptively adjust itself according to the characteristics of the scale layer. When encountering a thinner scale layer, the elastic outer shell 91 can apply relatively small pressure, which can effectively remove the scale layer without causing excessive wear to the inner wall of the oil pipeline 8. When encountering a thicker scale layer, the elastic outer shell 91 will deform to a certain extent when subjected to the reaction force of the scale layer, thereby increasing the pressure on the scale layer and enhancing the cleaning effect. This adaptive ability to different scale layers enables the cleaning device 9 to cope with various complex scale layer conditions, ensuring that the oil pipeline 8 can restore good oil transportation performance after the pipeline cleaning operation.

[0053] During the operation of the pipeline cleaning device 9, the cleaning device 9 will be subjected to various forces such as the reaction force from the inner wall of the oil pipeline 8 and the impact force of the oil flow. The outer shell 91 of elastic material can play a buffering role, absorbing and dispersing these forces, and reducing the stress on the internal components of the cleaning device 9.

[0054] For example, when the pig passes through a bend in the oil pipeline 8 at high speed, it generates a large centrifugal force. The elastic housing 91 can buffer the impact of this centrifugal force on the internal structure of the cleaning device 9, reducing the risk of damage to components due to prolonged excessive stress, thereby extending the service life of the cleaning device 9 and reducing the frequency of equipment replacement and maintenance. Because the elastic housing 91 reduces friction and collision between the cleaning device 9 and the inner wall of the oil pipeline 8, the wear on the cleaning device 9 is correspondingly reduced. The four-sided pyramidal protrusions on the cleaning device 9 can maintain their sharpness and effective cleaning performance for a longer period, reducing the need for frequent replacements due to component wear.

[0055] At the same time, the reduction in overall equipment wear also reduces the workload of daily maintenance and repair, lowers maintenance costs, and improves the economic efficiency of pipeline cleaning operations.

[0056] In this embodiment, the magnetic unit is a permanent magnet 92. The permanent magnet 92 generates a persistent magnetic field by utilizing the orderly arrangement of its internal microscopic magnetic domains. It can continuously emit magnetic signals without external energy input. Compared with magnetic units such as electromagnets that require electricity to generate a magnetic field, the permanent magnet 92 can continuously release magnetic signals during the operation of the pig, providing a stable and reliable magnetic field environment for the detection device.

[0057] During the application process, in the pipeline cleaning operation of oil pipeline 8, the internal environment of oil pipeline 8 is complex, and there may be electromagnetic interference or unstable power supply. The continuous and stable magnetic field output of permanent magnet 92 ensures that the detection device can always receive clear and accurate magnetic signals, thereby realizing the accurate location and monitoring of abnormal conditions such as scale and blockage in oil pipeline 8, avoiding misjudgment or missed judgment due to magnetic signal interruption or fluctuation. In addition, the magnetic field strength and direction generated by permanent magnet 92 are relatively fixed, and the magnetic field distribution is relatively uniform. This stable magnetic field characteristic makes the propagation of magnetic signals in the medium of oil pipeline 8 more regular, which is convenient for the detection device to accurately capture and analyze them.

[0058] Specifically, in long-distance oil pipelines 8, magnetic signals need to traverse a long distance of the pipeline 8 to reach the detection device. The stable magnetic field of the permanent magnet 92 can reduce signal attenuation and distortion during propagation and improve the sensitivity of the detection device to weak magnetic signals.

[0059] In this embodiment, the housing includes an upper housing 2 and a lower housing 6. Both the upper housing 2 and the lower housing 6 are semi-circular structures and are detachably connected to each other. The detection device is disposed on the inner wall opposite to the upper housing 2 and the lower housing 6, and the number of the detection device is not less than two. As shown in the figure, one end of the upper housing 2 and the lower housing 6 are rotatably connected by a pin 5, and the other end of the upper housing 2 and the lower housing 6 are fastened by bolts. Before the pipeline cleaning operation, the upper housing 2 and the lower housing 6 are manually opened using the pin 5, so that the inner wall of the upper housing 2 is at the top of the oil pipeline 8 and the inner wall of the lower housing 6 is below the oil pipeline 8. Next, the upper housing 2 and the lower housing 6 are manually closed together and fastened with bolts. At this time, the detection end of the detection device located on the inner wall of the upper housing 2 and the lower housing 6 is just close to the outer wall of the oil pipeline 8. In order to improve the accuracy and reliability of the magnetic induction effect, the number of detection devices on the inner wall of the upper housing 2 and the lower housing 6 is not less than two. In this embodiment, the number of detection devices on the inner wall of the upper housing 2 and the lower housing 6 is four. The actual number of devices installed can be determined according to the diameter of the oil pipeline 8 during the specific pipeline cleaning operation.

[0060] In application, the semi-circular detachable structure of the upper housing 2 and lower housing 6 allows for rapid separation and assembly without complex tools. During pipeline cleaning operations on oil pipeline 8, when internal detection devices need to be inspected, calibrated, or replaced, only the upper housing 2 and lower housing 6 need to be disassembled, avoiding the cumbersome operation of complete disassembly and significantly reducing equipment downtime. Furthermore, the split housing design allows the pig to be disassembled into a flat structure during transportation and storage, reducing space occupation and improving transportation efficiency.

[0061] Furthermore, there are no fewer than two detection devices symmetrically distributed on the inner walls of the upper shell 2 and the lower shell 6, enabling 360° full coverage detection of the inner wall of the oil pipeline 8. For example, when defects such as scale, cracks, or corrosion exist in the oil pipeline 8, multiple detection devices can simultaneously collect data from different angles, avoiding missed detections or misjudgments caused by the limited perspective of a single detection point.

[0062] Multiple detection devices are designed with redundancy. If one detection device fails due to a malfunction, the other detection devices can continue to work, ensuring the continuity of the detection task and improving the overall reliability of the system.

[0063] Furthermore, the detection device includes a fixed sleeve 71, within which a fixed sleeve 74 is screwed to a threaded fixed sleeve 72. A component housing 75 is installed within the fixed sleeve 74, and a Hall element 7 is housed within the component housing 75. Specifically, the Hall element 7 is a magnetic field sensor 76, and a sealing ring 73 is provided between the fixed sleeve 74 and the fixed sleeve 71. In this structure, the stepped encapsulation structure forms a physical barrier, effectively isolating the oil pipeline 8 from the impact of high-pressure oil flow, the collision of metal particles, and the erosion of corrosive media in the crude oil.

[0064] In this embodiment, mounting holes 10 are provided on the inner walls of the upper shell 2 and the lower shell 6, and the detection device is disposed in the mounting holes 10.

[0065] In this embodiment, the top of the upper housing 2 and the lower housing 6 are provided with a cover plate 1 for sealing; a rubber gasket 3 is provided on the side of the upper housing 2 near the pin 5, and a connecting tube 4 is provided on the rubber gasket 3 for connecting to an external wiring device; it is worth noting that a first bonding plate 11 is installed at the end of the upper housing 2 and the lower housing 6 connected to the pin 5, and a through hole is opened between the two first bonding plates 11. The opening of the through hole facilitates the connection of the wires at the ends of the multiple magnetic field sensors 76 to the external wiring device. A second bonding plate 12 is provided on the inner wall of the end of the upper housing 2 and the lower housing 6 away from the pin 5, and the second bonding plate 12 is used to support the adjacent detection device.

[0066] In this embodiment, the control device is an STM32F407ZGT6 main control Hall information processing module. This module consists of an STM32F407ZGT6 main control chip, an ADS1256 high-precision acquisition module, an ADS1256 analog-to-digital converter module, an M7504GDTU communication module, a 5V regulated power supply, and a Hall sensor. This series of modules is a relatively common Hall sensor detection and communication system on the market. The STM32F407ZGT6 main control chip, with its powerful data processing and computing capabilities, serves as the core of the module, coordinating the work of each component and analyzing, processing, and making decisions on the acquired signals. The ADS1256 high-precision acquisition module enables high-precision acquisition of the weak electrical signals output by the Hall sensor, ensuring the accuracy of signal acquisition and providing a reliable data foundation for subsequent analysis. The ADS1256 analog-to-digital converter module accurately converts the acquired analog electrical signals into digital signals, facilitating digital processing and computation by the main control chip. The M7504GDTU communication module is responsible for uploading processed data to the host computer, enabling remote data transmission and ensuring the timeliness and stability of system data interaction. A 5V regulated power supply provides a stable power supply voltage for the entire module, ensuring that all chips and components operate in a stable electrical environment and preventing voltage fluctuations from affecting module performance.

[0067] Secondly, a pipeline is provided, including a pipeline body, which is cleaned using an oil pipeline pigging tool based on the magnetoelectric effect as described above.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit its protection scope. Although the utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that after reading this utility model, they can still make various changes, modifications or equivalent substitutions to the specific implementation of the utility model, but these changes, modifications or equivalent substitutions are all within the protection scope of the pending claims of the utility model.

Claims

1. A pig for oil pipelines based on the magnetoelectric effect, characterized in that, include: The casing contains a control device. The detection device is circumferentially disposed on the inner wall of the housing and is signal-connected to the control device. The cleaning device has a spherical structure and works in conjunction with the detection device. Its outer wall has multiple four-sided pyramidal protrusions, and its interior is equipped with a magnetic unit, which is used to generate a magnetic signal source.

2. A magnetoelectric effect-based pig for oil pipelines according to claim 1, characterized in that, The cleaning device includes a housing made of an elastic material.

3. A magnetoelectric effect-based pig for oil pipelines according to claim 2, characterized in that, The elastic material is rubber.

4. The magnetoelectric effect-based pig for oil pipelines according to claim 1, characterized in that The magnetic unit is a permanent magnet.

5. The magnetoelectric effect-based pig for oil pipelines according to claim 1, characterized in that The housing includes an upper housing and a lower housing, both of which are semi-circular structures and are detachably connected to each other; The detection device is installed on the inner wall of the upper and lower shells, respectively, and there are no fewer than two such devices.

6. The oil pipeline pig based on the magnetoelectric effect according to claim 1 or 5, characterized in that, The detection device includes a fixed sleeve, in which a fixed sleeve is screwed, and a component housing is installed in the fixed sleeve. The component housing is provided with a Hall unit.

7. A magnetoelectric effect-based pig for oil pipelines according to claim 6, characterized in that The Hall element is a magnetic field sensor.

8. A magnetoelectric effect-based pig for oil pipelines according to claim 6, characterized in that A sealing ring is provided between the fixed sleeve and the fixed sleeve.

9. The magnetoelectric effect-based pig for oil pipelines according to claim 5, characterized in that Mounting holes are provided on the inner walls of the upper and lower housings, and the detection device is disposed in the mounting holes.

10. A pipe comprising a pipe body, characterized in that The pipeline body is cleaned using the oil pipeline cleaning tool based on the magnetoelectric effect as described in any one of claims 1-9.

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