A device for cleaning and removing scale from the inner wall of a petroleum pipeline

Abstract

The application relates to the technical field of pipeline cleaning, in particular to an oil pipeline inner wall cleaning and descaling device, which comprises a supporting seat, the upper surface of the supporting seat is fixedly connected with a treatment frame, the inside of the treatment frame is fixedly connected with a partition plate, and the inside of the partition plate is movably sleeved with a cleaning pipe; the device realizes efficient cleaning and descaling of the oil pipeline inner wall through linkage of a mechanism and a system, that is, the middle oil pipeline is clamped and positioned through a limiting clamp, meanwhile, a self-locking plate and a limiting gear are mutually matched and operated, so that the clamping and positioning of the oil pipeline can be realized, the stable installation effect can be realized, the cleaning and descaling of the oil pipeline inner wall are realized through the cleaning pipe and the cleaning scraper, meanwhile, due to the self-rotation of the oil pipeline, the cleaning plate is tightly combined with the oil pipeline inner wall and realizes the cleaning and descaling of the oil pipeline inner part, and the cleaning risk of the equipment is understood through supervision, so that the equipment can be timely adjusted, and the cleaning stability of the equipment is ensured.

Description

Technical Field

[0001] This invention relates to the field of pipeline cleaning technology, and in particular to a device for cleaning and descaling the inner wall of oil pipelines. Background Technology

[0002] Oil sludge in oilfield pipelines is generally composed of various impurities and deposits in the oil, such as minerals, wax, sand, and salts. This sludge gradually deposits on the inner wall of the pipeline as the oil flows. Current desludge removal methods commonly include mechanical cleaning and chemical cleaning. Mechanical cleaning usually involves rinsing with a high-pressure water gun and then scraping the sludge off the inner wall of the pipeline with mechanical equipment such as scrapers or brushes after rinsing. Chemical cleaning involves leaving chemical solvents or cleaning agents in the pipeline for a period of time to dissolve the sludge, and then rinsing the pipeline with clean water or other solvents to remove it.

[0003] CN220635660U discloses an oilfield pipeline descaling device, comprising a hollow carrier that extends into an oilfield pipeline. The carrier is equipped with a descaling nozzle that releases cleaning agent within the pipeline. A support body is located at the rear end of the carrier, and a water supply chamber is provided on the support body, connecting to the inner cavity of the carrier. A swinging body is also provided on the support body, contacting the oil scale on the inner wall of the oilfield pipeline and delivering cleaning agent or flushing fluid to the descaling nozzle. This device aims to improve upon the problem of requiring numerous tools when using a combination of physical and chemical methods to clean oil scale in traditional pipelines. However, when cleaning the inner wall of the oil pipeline, the lack of rotation of the pipeline itself can affect the frictional force during cleaning and descaling, reducing the cleaning and descaling effect. Furthermore, it cannot provide reasonable cleaning management based on the cleaning and descaling status of the inner wall of the oil pipeline.

[0004] To address the aforementioned technical shortcomings, a solution is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a device for cleaning and descaling the inner wall of an oil pipeline. This device achieves efficient cleaning and descaling of the inner wall of the oil pipeline through mechanical and system linkage. Specifically, the oil pipeline is clamped and positioned by a limiting clamp, while the self-locking plate and the limiting gear work together to achieve both clamping and positioning of the oil pipeline and stable installation. The cleaning pipe drives the cleaning scraper to clean and descale the inner wall of the oil pipeline. At the same time, due to the rotation of the oil pipeline, the cleaning plate is in close contact with the inner wall of the oil pipeline and cleans and descales the inside of the oil pipeline.

[0006] By monitoring the cleaning risks of the equipment, timely adjustments can be made to ensure the cleaning effect and stability. Furthermore, self-inspection of the cleaned oil pipe inner wall allows for assessment of its cleanliness, facilitating appropriate secondary cleaning and ensuring proper cleaning of the oil pipe inner wall. This ultimately helps improve the cleaning effect of the oil pipe inner wall and addresses the aforementioned technical deficiencies.

[0007] The objective of this invention can be achieved through the following technical solution: a device for cleaning and descaling the inner wall of an oil pipeline, comprising a support base, a processing frame fixedly connected to the upper surface of the support base, a partition plate fixedly connected inside the processing frame, a cleaning pipe movably sleeved inside the partition plate, and a control panel fixedly connected to the upper end of one side of the processing frame.

[0008] A servo motor is fixedly connected to the upper surface of the processing rack. An adjustment shaft is internally connected to the lower surface of the servo motor, and the lower end of the adjustment shaft is rotatably connected to the partition plate. A guide plate is sleeved on the outside of the adjustment shaft, and the guide plate is slidably connected to the processing rack. A driven wheel is fixedly connected to the upper end of the cleaning tube below the guide plate. A cleaning scraper is provided at the lower end of the cleaning tube. A drive motor is fixedly connected to the upper surface of the guide plate, and a transmission wheel is internally connected to the lower surface of the drive motor.

[0009] Preferably, a positioning sleeve is movably fitted around the outside of the cleaning pipe below the driven wheel. A movable slide plate is fixedly connected to the end of the positioning sleeve away from the cleaning pipe. A telescopic rod is fixedly connected to the lower end of the movable slide plate. A cleaning plate is fixedly connected to the end of the telescopic rod away from the movable slide plate.

[0010] Preferably, a rotary motor is fixedly connected to the upper surface of the support base, a positioning seat is internally connected to the upper surface of the rotary motor, a limit gear is fixedly sleeved on the outside of the positioning seat above the processing frame, and a support plate is fixedly connected to the upper end of the positioning seat.

[0011] Preferably, a guide cylinder is inserted inside the support plate. A limit clamp is fixedly connected to one end of the guide cylinder near the guide slide plate, and a self-locking plate is fixedly connected to one end of the guide cylinder away from the guide slide plate. The end of the self-locking plate away from the guide cylinder cooperates with the limit gear.

[0012] Preferably, a limiting spring is provided between the support plate and the limiting clamp and outside the guide cylinder, a through hole matching the movable slide is provided inside the partition plate, and a water outlet is provided at the lower end of the cleaning pipe.

[0013] Preferably, the control panel is internally equipped with a monitoring platform, a data acquisition unit, a control and monitoring unit, a feedback self-testing unit, and a management response unit;

[0014] The data acquisition unit is used to collect cleaning data from the equipment and send the cleaning data to the control and monitoring unit. After receiving the cleaning data, the control and monitoring unit immediately performs a cleaning safety supervision and assessment analysis on the cleaning data, compares and analyzes the obtained cleaning effect risk coefficient Q, and obtains risk signals and stability signals.

[0015] The feedback self-test unit responds to a stable signal and acquires the inner wall feature image of the oil pipe, performs cleaning verification feedback analysis on the inner wall feature image, and performs discrimination processing on the obtained difference value to obtain a qualified signal and a secondary cleaning signal.

[0016] The management response unit is used to respond to risk signals and stable signals and to perform preset early warning operations corresponding to the risk signals and stable signals. The management response unit is also used to respond to qualified signals and secondary cleaning signals and to perform preset early warning operations corresponding to the qualified signals and secondary cleaning signals.

[0017] Preferably, the cleaning safety supervision and assessment analysis process of the control and monitoring unit is as follows:

[0018] The device's start-up time is collected and set as a time threshold. This time threshold is divided into i sub-time periods, where i is a natural number greater than zero. Cleaning data for each sub-time period is obtained, including flushing water pressure, cleaning speed, and downward movement speed. A Cartesian coordinate system is established with the number of sub-time periods as the X-axis and the cleaning data as the Y-axis. Cleaning data curves are plotted by plotting points to obtain the maximum peak value and minimum trough value of flushing water pressure, cleaning speed, and downward movement speed. The differences between the maximum peak value and minimum trough value of flushing water pressure, cleaning speed, and downward movement speed are analyzed and set as water pressure interference value, speed interference value, and movement speed interference value, respectively. These values ​​are labeled SG, ZG, and YG. The cleaning effect risk coefficient is obtained according to the formula Q = SG × ZG × YG × f1, where f1 is a preset correction factor coefficient, which is greater than zero, and Q is the cleaning effect risk coefficient.

[0019] Preferably, the cleaning verification feedback analysis process of the feedback self-test unit is as follows:

[0020] The inner wall feature image of the oil pipe within the time threshold is obtained. The inner wall feature image of the oil pipe is compared and analyzed with the qualified inner wall feature image of the oil pipe after cleaning. The difference value between the inner wall feature image of the oil pipe and the qualified inner wall feature image of the oil pipe after cleaning is obtained, and the difference value is discriminated.

[0021] The beneficial effects of this invention are as follows:

[0022] (1) This invention achieves efficient cleaning and descaling of the inner wall of the oil pipe through mechanical and system linkage. That is, the oil pipe in the middle is clamped and positioned by the limiting clamp, and the self-locking plate and the limiting gear cooperate with each other to achieve both clamping and positioning of the oil pipe and stable installation. The cleaning pipe drives the cleaning scraper to clean and descale the inner wall of the oil pipe. At the same time, due to the rotation of the oil pipe, the cleaning plate is in close contact with the inner wall of the oil pipe and cleans and descales the inside of the oil pipe, thereby improving the cleaning effect of the oil pipe.

[0023] (2) By monitoring the cleaning risks of the equipment, the equipment can be adjusted in a timely manner to ensure the cleaning effect and stability of the equipment. The self-inspection feedback of the inner wall of the oil pipe after cleaning can be carried out to determine whether the inner wall of the oil pipe is clean, so as to carry out secondary cleaning in a reasonable manner to ensure the qualified cleaning of the inner wall of the oil pipe, thereby helping to improve the cleaning effect of the inner wall of the oil pipe. Attached Figure Description

[0024] The invention will now be further described with reference to the accompanying drawings;

[0025] Figure 1 This is a three-dimensional view of the structure of the present invention;

[0026] Figure 2 This is a side view of the structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the transmission wheel of the present invention;

[0028] Figure 4 This is a schematic diagram of the structure of the movable skateboard of the present invention;

[0029] Figure 5 This is a front view of the structure of the present invention;

[0030] Figure 6 This is a schematic diagram of the structure of the limiting clamp of the present invention;

[0031] Figure 7 This is a schematic diagram of the structure of the self-locking plate of the present invention;

[0032] Figure 8 This is a flowchart of the system of the present invention.

[0033] Legend: 1. Support base; 2. Processing rack; 3. Divider plate; 4. Cleaning tube; 5. Control panel; 6. Servo motor; 7. Adjusting shaft; 8. Guide slide plate; 9. Driven wheel; 10. Cleaning scraper; 11. Drive motor; 12. Transmission wheel; 13. Positioning sleeve; 14. Moving slide plate; 15. Telescopic rod; 16. Cleaning plate; 17. Rotary motor; 18. Positioning base; 19. Limiting gear; 20. Support plate; 21. Guide cylinder; 22. Limiting clamp; 23. Self-locking plate; Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1: Please refer to Figures 1 to 8 As shown, the present invention is a cleaning and descaling device for the inner wall of an oil pipeline, including a support base 1, a processing frame 2 fixedly connected to the upper surface of the support base 1, a partition plate 3 fixedly connected inside the processing frame 2, a cleaning pipe 4 movably sleeved inside the partition plate 3, and a control panel 5 fixedly connected to the upper end of one side of the processing frame 2.

[0036] A servo motor 6 is fixedly connected to the upper surface of the processing rack 2. An adjustment shaft 7 is internally connected to the lower surface of the servo motor 6. The lower end of the adjustment shaft 7 is rotatably connected to the partition plate 3. A guide plate 8 is sleeved on the outside of the adjustment shaft 7. The guide plate 8 is slidably connected to the processing rack 2. A driven wheel 9 is fixedly connected to the upper end of the cleaning pipe 4 below the guide plate 8. A cleaning scraper 10 is provided at the lower end of the cleaning pipe 4. A drive motor 11 is fixedly connected to the upper surface of the guide plate 8. A transmission wheel 12 is internally connected to the lower surface of the drive motor 11.

[0037] When cleaning the oil pipe, after the oil is installed in the oil pipe, the rotary motor 17 drives the positioning seat 18 to work, which in turn drives the oil pipe to rotate. At the same time, the servo motor 6 and the drive motor 11 run synchronously. The servo motor 6 drives the adjusting shaft 7 to rotate, which causes the adjusting shaft 7 to move the external guide slide plate 8 downward inside the processing frame 2. At the same time, the guide slide plate 8 drives the cleaning pipe 4 to move downward inside the partition plate 3. Meanwhile, the drive motor 11 drives the transmission wheel 12 to rotate. Through the transmission between gears, the transmission wheel 12 drives the driven wheel 9 to rotate, which in turn drives the cleaning pipe 4 to rotate, achieving the effect of rotating and moving the cleaning pipe 4 downward. The rotation direction of the cleaning pipe 4 is opposite to the rotation direction of the oil pipe.

[0038] In this embodiment of the invention, the cleaning scraper 10 and the cleaning pipe 4 are connected by a hollow spring, and the function of the cleaning scraper 10 is to clean and remove scale from the inner wall of the oil pipe.

[0039] A positioning sleeve 13 is movably sleeved on the outside of the cleaning pipe 4, below the driven wheel 9. A movable slide plate 14 is fixedly connected to the end of the positioning sleeve 13 away from the cleaning pipe 4. A telescopic rod 15 is fixedly connected to the lower end of the movable slide plate 14. A cleaning plate 16 is fixedly connected to the end of the telescopic rod 15 away from the movable slide plate 14. As the cleaning pipe 4 moves downward, the cleaning pipe 4 drives the movable slide plate 14 to move vertically downward inside the partition plate 3 through the positioning sleeve 13. The lower end of the cleaning plate 16 enters the inner wall of the oil pipe and squeezes the telescopic rod 15, so that the cleaning plate 16 fits tightly with the inner wall of the oil pipe and cleans and removes scale from the inside of the oil pipe. At the same time, due to the rotation of the oil pipe, the cleaning effect of the cleaning plate 16 is improved.

[0040] In this embodiment of the invention, a positioning spring is provided inside the telescopic rod 15. That is, when the cleaning plate 16 is squeezed, the cleaning plate 16 drives the telescopic rod 15 to work, causing the spring inside the telescopic rod 15 to undergo elastic deformation, thereby enabling the cleaning plate 16 to achieve the function of telescopic extension and retraction, so as to clean the inside of the oil pipe.

[0041] A rotary motor 17 is fixedly connected to the upper surface of the support base 1. A positioning base 18 is connected to the upper surface of the rotary motor 17. A limit gear 19 is fixedly sleeved on the outside of the positioning base 18 above the processing frame 2. A support plate 20 is fixedly connected to the upper end of the positioning base 18. A guide cylinder 21 is inserted into the inside of the support plate 20. A limit clamp 22 is fixedly connected to the end of the guide cylinder 21 near the guide slide plate 8. A self-locking plate 23 is fixedly connected to the end of the guide cylinder 21 away from the guide slide plate 8. The end of the self-locking plate 23 away from the guide cylinder 21 cooperates with the limit gear 19. A limit spring is provided between the support plate 20 and the limit clamp 22 and outside the guide cylinder 21. A through hole matching the movable slide plate 14 is opened inside the partition plate 3. A water outlet is opened at the lower end of the cleaning pipe 4.

[0042] That is, when installing the oil pipe, the lower end of the oil pipe is placed on the support plate 20. The limiting clamp 22 drives the guide cylinder 21 to move inside the support plate 20, causing the limiting spring to deform elastically. This allows the limiting clamp 22 to clamp and position the oil pipe in the middle. At the same time, during the movement of the guide cylinder 21, the guide cylinder 21 drives the self-locking plate 23 to move, thereby separating the self-locking plate 23 from the limiting gear 19 so that the positioning seat 18 can rotate. When the oil pipe is removed, the self-locking plate 23 self-locks the limiting gear 19, which facilitates the stability of the subsequent oil pipe installation. This achieves both clamping and positioning of the oil pipe and stable installation, while also providing assistance for the subsequent cleaning of the cleaning plate 16.

[0043] Example 2: The control panel 5 is equipped with a monitoring platform, a data acquisition unit, a control and monitoring unit, a feedback self-testing unit, and a management response unit.

[0044] When the monitoring platform detects that the equipment has started operating, it generates a monitoring command and sends it to the data acquisition unit. Upon receiving the monitoring command, the data acquisition unit immediately collects the equipment's cleaning data and sends it to the control and monitoring unit. After receiving the cleaning data, the control and monitoring unit immediately performs a cleaning safety monitoring and analysis to determine whether the cleaning effect of the oil pipe meets the standards, so as to adjust the equipment in a timely manner to improve the cleaning effect. The specific cleaning safety monitoring and analysis process is as follows:

[0045] The equipment's start-up time is collected and set as a time threshold. This time threshold is divided into i sub-time periods, where i is a natural number greater than zero. Cleaning data for each sub-time period is obtained, including flushing water pressure, cleaning speed, and downward movement speed. A Cartesian coordinate system is established with the number of sub-time periods as the X-axis and the cleaning data as the Y-axis. Cleaning data curves are plotted by plotting points to obtain the maximum peak value and minimum trough value of flushing water pressure, cleaning speed, and downward movement speed. The differences between these values ​​are defined as water pressure interference value, speed interference value, and movement speed interference value, respectively, and labeled SG, ZG, and YG. The cleaning effect risk coefficient is obtained using the formula Q = SG × ZG × YG × f1, where f1 is a preset correction factor coefficient (greater than zero), and Q is the cleaning effect risk coefficient. The cleaning effect risk coefficient Q is then compared and analyzed with its internally stored preset cleaning effect risk coefficient threshold.

[0046] If the ratio between the cleaning effect risk coefficient Q and the preset cleaning effect risk coefficient threshold is greater than 1, a risk signal is generated.

[0047] If the ratio between the cleaning effect risk coefficient Q and the preset cleaning effect risk coefficient threshold is less than or equal to 1, a stable signal is generated. The risk signal and the stable signal are sent to the management response unit. After receiving the risk signal and the stable signal, the management response unit immediately performs the preset early warning operation corresponding to the risk signal and the stable signal, so as to clean and adjust the equipment in a timely manner to ensure the cleaning effect and cleaning stability of the equipment.

[0048] When a stable signal is generated, the feedback self-test unit responds to the stable signal and acquires a feature image of the inner wall of the tubing. It then performs a cleaning verification feedback analysis on the inner wall feature image to determine whether the inner wall of the tubing is clean enough for appropriate secondary cleaning. The specific cleaning verification feedback analysis process is as follows:

[0049] The inner wall feature images of the tubing within a time threshold are obtained. These images are then compared and analyzed with qualified inner wall feature images of the tubing after cleaning. The difference values ​​between these images are then determined, and the differences are processed accordingly.

[0050] If the difference value is less than the preset difference value threshold, a qualified signal is generated;

[0051] If the difference value is greater than or equal to the preset difference value threshold, a secondary cleaning signal is generated. The qualified signal and the secondary cleaning signal are sent to the management response unit. After receiving the qualified signal and the secondary cleaning signal, the management response unit immediately performs the preset early warning operation corresponding to the qualified signal and the secondary cleaning signal, so as to perform secondary cleaning on the inner wall of the oil pipe in a timely manner, so as to ensure the qualified cleaning of the inner wall of the oil pipe, thereby helping to improve the cleaning effect of the inner wall of the oil pipe.

[0052] In summary, when installing the oil pipe, the lower end of the oil pipe is placed on the support plate 20, causing the limiting clamp 22 to move the guide cylinder 21 inside the support plate 20. At the same time, the limiting spring undergoes elastic deformation, thereby clamping and positioning the oil pipe in the middle with the limiting clamp 22. During the movement of the guide cylinder 21, the guide cylinder 21 drives the self-locking plate 23 to move, thereby separating the self-locking plate 23 from the limiting gear 19 so that the positioning seat 18 can rotate. When the oil pipe is removed, the self-locking plate 23 self-locks the limiting gear 19, which facilitates the stability of the subsequent oil pipe installation. It can achieve both clamping and positioning of the oil pipe and stable installation, while also providing an auxiliary function for cleaning the cleaning plate 16 later.

[0053] After the oil pipe is installed, the rotary motor 17 drives the positioning seat 18 to work, causing the oil pipe to rotate. The servo motor 6 and the drive motor 11 run synchronously. The servo motor 6 drives the adjusting shaft 7 to rotate, causing the adjusting shaft 7 to move the external guide slide plate 8 downward inside the processing frame 2. At the same time, the guide slide plate 8 moves the cleaning pipe 4 downward inside the partition plate 3. Meanwhile, the drive motor 11 drives the transmission wheel 12 to rotate. Through the transmission between gears, the transmission wheel 12 drives the driven wheel 9 to rotate, which in turn drives the cleaning pipe 4 to rotate, achieving the effect of rotating and moving the cleaning pipe 4 downward. The rotation direction of the cleaning pipe 4 is opposite to the rotation direction of the oil pipe.

[0054] As the cleaning pipe 4 moves downward, it drives the cleaning scraper 10 to clean and remove scale from the inner wall of the oil pipe. At the same time, the cleaning pipe 4 drives the moving slide plate 14 to move vertically downward inside the partition plate 3 through the positioning sleeve 13, so that the lower end of the cleaning plate 16 enters the inner wall of the oil pipe and squeezes the telescopic rod 15, so that the cleaning plate 16 fits tightly with the inner wall of the oil pipe and cleans and removes scale from the inside of the oil pipe. At the same time, due to the rotation of the oil pipe, the cleaning effect of the cleaning plate 16 is improved.

[0055] After cleaning, upon receiving a regulatory instruction, the data acquisition unit immediately collects the equipment's cleaning data and sends it to the control and monitoring unit. Upon receiving the data, the control and monitoring unit immediately conducts a cleaning safety monitoring and analysis to determine if the cleaning effect of the oil pipe meets the standards. This allows for timely adjustments to the equipment to ensure the cleaning effect and stability. Simultaneously, through information feedback, the self-inspection unit responds with a stable signal and collects characteristic images of the inner wall of the oil pipe. This data is then analyzed to verify whether the inner wall of the oil pipe is clean enough for appropriate secondary cleaning, ensuring qualified cleaning of the inner wall and ultimately improving the cleaning effect.

[0056] The threshold value is set to facilitate comparison. The threshold value depends on the amount of sample data and the number of base samples set by those skilled in the art for each group of samples; it is acceptable as long as it does not affect the proportional relationship between the parameter and the quantized value. The above formulas are derived from software simulation using a large amount of data and are selected to be close to the true value. The coefficients in the formulas are set by those skilled in the art according to the actual situation.

[0057] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for cleaning and descaling the inner wall of an oil pipeline, comprising a support base (1), characterized in that, The upper surface of the support base (1) is fixedly connected to a processing rack (2), the inside of the processing rack (2) is fixedly connected to a partition plate (3), the inside of the partition plate (3) is movably sleeved with a cleaning tube (4), and the upper side of one side of the processing rack (2) is fixedly connected to a control panel (5). A servo motor (6) is fixedly connected to the upper surface of the processing rack (2). An adjustment shaft (7) is internally connected to the lower surface of the servo motor (6). The lower end of the adjustment shaft (7) is rotatably connected to the partition plate (3). A guide plate (8) is sleeved on the outside of the adjustment shaft (7). The guide plate (8) is slidably connected to the processing rack (2). A driven wheel (9) is fixedly connected to the upper end of the cleaning pipe (4) below the guide plate (8). A cleaning scraper (10) is provided at the lower end of the cleaning pipe (4). A drive motor (11) is fixedly connected to the upper surface of the guide plate (8). A transmission wheel (12) is internally connected to the lower surface of the drive motor (11). A cleaning plate (16) is provided on one side of the cleaning pipe (4), and a water outlet is provided at the lower end of the cleaning pipe (4). When cleaning the oil pipeline, the oil pipeline rotates, the cleaning pipe (4) rotates, and the cleaning pipe (4) and the cleaning plate (16) move vertically downward. The control panel (5) is internally equipped with a monitoring platform, a data acquisition unit, a control and monitoring unit, a feedback self-testing unit, and a management response unit; The data acquisition unit is used to collect cleaning data from the cleaning and descaling device and send the cleaning data to the control and monitoring unit. After receiving the cleaning data, the control and monitoring unit immediately performs a cleaning safety supervision and assessment analysis on the cleaning data, compares and analyzes the obtained cleaning effect risk coefficient Q, and obtains risk signals and stability signals. The feedback self-test unit responds to a stable signal and acquires the inner wall feature image of the oil pipe, performs cleaning verification feedback analysis on the inner wall feature image, and performs discrimination processing on the obtained difference value to obtain a qualified signal and a secondary cleaning signal. The management response unit is used to respond to risk signals and stable signals and make preset early warning operations corresponding to risk signals and stable signals. The management response unit is also used to respond to qualified signals and secondary cleaning signals and make preset early warning operations corresponding to qualified signals and secondary cleaning signals. The cleaning safety supervision and assessment analysis process of the control and monitoring unit is as follows: The starting time of the cleaning and descaling device was collected and set as a time threshold. This time threshold was divided into i sub-time periods, where i is a natural number greater than zero. Cleaning data for each sub-time period was obtained, including flushing water pressure, cleaning speed, and downward movement speed. A Cartesian coordinate system was established with the number of sub-time periods as the X-axis and the cleaning data as the Y-axis. Cleaning data curves were plotted by plotting points, thereby obtaining the maximum peak value and minimum trough value of the flushing water pressure, cleaning speed, and downward movement speed. The differences between these values ​​were analyzed and defined as water pressure interference value, speed interference value, and movement speed interference value, respectively labeled SG, ZG, and YG. According to the formula... The cleaning effect risk coefficient is obtained, where f1 is the preset correction factor coefficient, f1 is greater than zero, and Q is the cleaning effect risk coefficient.

2. The oil pipeline inner wall cleaning and descaling device according to claim 1, characterized in that, A positioning sleeve (13) is movably sleeved on the outside of the cleaning pipe (4) below the driven wheel (9). A movable slide plate (14) is fixedly connected to the end of the positioning sleeve (13) away from the cleaning pipe (4). A telescopic rod (15) is fixedly connected to the lower end of the movable slide plate (14). A cleaning plate (16) is fixedly connected to the end of the telescopic rod (15) away from the movable slide plate (14).

3. The oil pipeline inner wall cleaning and descaling device according to claim 2, characterized in that, A rotary motor (17) is fixedly connected to the upper surface of the support base (1). A positioning seat (18) is connected to the upper surface of the rotary motor (17). A limit gear (19) is fixedly sleeved on the outside of the positioning seat (18) above the processing frame (2). A support plate (20) is fixedly connected to the upper end of the positioning seat (18).

4. The oil pipeline inner wall cleaning and descaling device according to claim 3, characterized in that, A guide cylinder (21) is inserted inside the support plate (20). A limit clamp (22) is fixedly connected to one end of the guide cylinder (21) near the guide slide plate (8). A self-locking plate (23) is fixedly connected to one end of the guide cylinder (21) away from the guide slide plate (8), and the end of the self-locking plate (23) away from the guide cylinder (21) cooperates with the limit gear (19).

5. The oil pipeline inner wall cleaning and descaling device according to claim 4, characterized in that, A limiting spring is provided between the support plate (20) and the limiting clamp (22) and outside the guide cylinder (21), and a through hole matching the movable slide plate (14) is provided inside the partition plate (3).

6. The oil pipeline inner wall cleaning and descaling device according to claim 5, characterized in that, The cleaning verification feedback analysis process of the feedback self-test unit is as follows: The inner wall feature image of the oil pipe within the time threshold is obtained. The inner wall feature image of the oil pipe is compared and analyzed with the qualified inner wall feature image of the oil pipe after cleaning. The difference value between the inner wall feature image of the oil pipe and the qualified inner wall feature image of the oil pipe after cleaning is obtained, and the difference value is discriminated.

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