Offshore platform steel wire rope movement detection device

Abstract

The utility model relates to the technical field of on-line detection of quality of various steel wire ropes of offshore platforms, and provides an offshore platform steel wire rope movement detection device which comprises a video detection assembly and an electromagnetic detection assembly which are used for steel wire rope detection and further comprises a support assembly which comprises a bottom plate, a magnetic attraction part, supporting legs, a supporting plate, a pressing wheel and a wheel carrier. The magnetic attraction component is embedded in the bottom surface of the bottom plate, two supporting legs are arranged at the two ends of the top surface of the bottom plate in pairs, a supporting plate is arranged at the top ends of the supporting legs, and the video detection assembly and the electromagnetic detection assembly are arranged on the supporting plate; the wheel frame is arranged in the middle of the top face of the bottom plate. A pressing wheel is rotationally arranged at the top end of the wheel frame. Video detection and electromagnetic detection technologies are combined, so that the detection accuracy is up to 95% or above; steel wire rope detection work is carried out online in time, the damage discovery period is shortened, preventive maintenance is carried out, the service cycle is prolonged as much as possible on the premise of ensuring the safety of the steel wire rope, and the steel wire rope replacement cost caused by premature scrapping is reduced.

Description

Technical Field

[0001] This utility model relates to the field of online detection technology for the quality of various steel wire ropes on offshore platforms, and provides a device for detecting the movement of steel wire ropes on offshore platforms. Background Technology

[0002] Steel wire rope is an important flexible load-bearing component with many advantages, such as high tensile strength, high fatigue strength, light weight, good elasticity, stable and reliable operation, strong ability to withstand dynamic loads and overloads, and noiseless operation and winding under high-speed working conditions. It is widely used in lifting, transportation and traction equipment in various industries and departments.

[0003] As a load-bearing component in engineering, steel wire ropes will inevitably experience fatigue, corrosion, wear, or even sudden breakage during use due to various reasons. Its load-bearing capacity and reliability are directly related to the safety of equipment and personnel.

[0004] Currently, the main methods for inspecting steel wire ropes in the petroleum industry are visual inspection and caliper measurement, which rely heavily on the work experience and subjective judgment of the inspectors.

[0005] Due to the special structure of wire ropes and the influence of factors such as personnel quality, working environment, and harsh working conditions, manual inspection cannot reliably guarantee the safe operation of wire ropes.

[0006] Therefore, it is of great significance to explore various methods for detecting defects in wire ropes, strive to extend the service life of wire ropes, and ensure that wire ropes are replaced in time before they break.

[0007] However, due to the complexity of wire rope structures, the diversity of working environments, and the limitations of testing methods, wire rope defect detection is extremely difficult. To date, the main problems with existing non-destructive testing technologies and instruments for wire ropes are:

[0008] The detection has low reliability, low level of intelligence, lack of objectivity in the detection results, and incomplete information on wire rope breakage damage, making it impossible to make a complete estimate of the wire rope breakage damage.

[0009] Therefore, it is necessary to conduct exploratory research based on existing technologies to develop equipment with high performance and high reliability to meet the needs of online inspection of wire ropes.

[0010] In addition to bearing loads within their normal operating range, wire ropes are frequently subjected to unpredictable load impacts and harsh environments during use. The main damage defects in wire ropes include: broken wires, skipped wires, missing wires, poor twisting, exposed hemp core, corrosion, wear, and inadequate lubrication. These various damages reduce the strength of the wire rope and can even lead to breakage and accidents. Currently, the most common wire rope damage patterns on offshore platforms are broken wires, wear, and corrosion.

[0011] Wire rope breakage can generally be categorized into overload breakage, fatigue breakage, wear breakage, corrosion breakage, shear breakage, and kink breakage. Overload breakage occurs when the wire rope breaks due to excessive load or impact, resulting in a plastic contraction at the fracture surface. Fatigue breakage occurs when the wire rope, under tension, undergoes repeated bending and turning through rollers or pulleys, causing metal fatigue within the strands, resulting in a flat fracture surface. Wear breakage occurs when the wire rope comes into contact with other fixed objects during operation, resulting in a flat, oblique fracture surface. Corrosion breakage occurs when the wire rope operates in a corrosive environment, causing corrosion and rust, reducing the effective metal area and ultimately leading to breakage, resulting in an irregular, needle-like fracture surface. Shear breakage occurs when the wire rope is forcibly pulled apart after compression, resulting in a shear-like fracture surface. Kink breakage occurs when the wire rope breaks due to kinking caused by slack during operation, followed by tension, resulting in a smooth, flat fracture surface.

[0012] Wear on wire ropes can be categorized into three types: first, contact friction during operation, which wears the outer layer of wires; second, wear between the wires within the strands during operation; and third, deformation wear caused by compression and impact. As the service life of a wire rope increases, wire wear reduces the effective metal cross-section, resulting in a thinner diameter and decreased strength. The wire rope must be replaced when the diameter reduction, calculated based on the standard nominal diameter, reaches a certain value.

[0013] Corrosion of wire ropes is a destructive phenomenon caused by the corrosion of its metal surface by surrounding chemical media and other corrosive substances. Corrosion of wire ropes is very common during use. When obvious damage such as blackening, rust, pitting, etc. appears, the wire rope shall no longer be used for lifting personnel. If the wire rope is severely corroded, or if pitting forms grooves or the outer steel wires are loose, it shall not be used and the rope shall be replaced immediately, regardless of the number of broken wires or whether the wire rope diameter has changed. Corrosion of wire ropes will aggravate wear and damage, which in turn will lead to broken wires. When the number of broken wires reaches a certain proportion, the rope will break.

[0014] Currently, offshore platforms commission third-party professional organizations to conduct annual inspections and load performance tests on all wire ropes according to wire rope testing and inspection standards, verify safe operating loads, issue annual inspection reports, and affix inspection labels. Simultaneously, professional maintenance teams conduct quarterly professional maintenance and comprehensive inspections of the wire ropes, issuing inspection reports and providing specific recommendations. However, during annual inspections and quarterly maintenance patrols, instances of wire rope breakage, deformation, or excessive overall wear are frequently observed, leading to uneven stress on the wire ropes during operation, creating safety hazards, and increasing the risk of accidents. In stark contrast to these accidents, the current wire rope inspection methods, such as visual inspection and caliper measurement, are rudimentary and fall far short of the safety management needs of the users. Wire ropes inevitably suffer a series of damages during use, threatening their safety and lifespan; the consequences of breakage are extremely serious. Researching online wire rope inspection technology to shorten the damage detection cycle and implement predictive maintenance, while ensuring safe use of wire ropes and minimizing waste caused by premature scrapping, has significant economic value. Summary of the Invention

[0015] The purpose of this invention is to address the shortcomings of existing technologies by proposing a mobile detection device for steel wire ropes on offshore platforms. This addresses the limitations of current steel wire rope detection technologies used on offshore platforms, which can only detect localized damage such as broken wires, localized deformation, and corrosion wear. These technologies cannot detect the extent of missing cross-sectional area of ​​the steel wire rope, nor can they preventatively detect microscopic defects, early failures, or damage. Furthermore, the operation of the device, where operators hold a magnetic field detector while the steel wire rope is in motion, carries a high risk factor. After signal acquisition, offline analysis and manual comparison of the data are required, which is time-consuming and prone to errors, and cannot accurately reflect the real-time condition of the steel wire rope.

[0016] To achieve the above objectives, the present invention adopts the following technical solution: a mobile detection device for steel wire ropes on offshore platforms, comprising a video detection component and an electromagnetic detection component for steel wire rope detection, and a support assembly, wherein the support assembly comprises a base plate, a magnetic suction component, support legs, a support plate, a pressure wheel, and a wheel frame; the magnetic suction component is embedded in the bottom surface of the base plate, and two support legs are provided in pairs at both ends of the top surface of the base plate, with a support plate at the top of the support legs, and the video detection component and the electromagnetic detection component are mounted on the support plate; the wheel frame is located in the middle of the top surface of the base plate, and a pressure wheel is rotatably mounted on the top of the wheel frame.

[0017] Furthermore, the support legs are a pair, in the form of upright plates or upright legs, symmetrically fixed at both ends of the top surface of the base plate; the support plates are also a pair, respectively horizontally fixed at the top of the support legs, and have through holes for mounting fixing bolts; the wheel frame is a frame fixed at the middle position of the top surface of the base plate, and the top of the wheel frame has a shaft hole for mounting a pressure wheel, the pressure wheel being inserted into the shaft hole through a bearing; the video detection component and the electromagnetic detection component are respectively bolted to the support plate with fixing bolts.

[0018] Furthermore, it also includes a measuring wheel, which is rotatably mounted below the clamping wheel. During testing, the clamping wheel presses the wire rope against the measuring wheel, and the wheel surface of the measuring wheel contacts the wire rope, which is used to detect the length of the wire rope or the distance traveled.

[0019] Furthermore, it also includes a speed sensor, which is mounted on the side of the wheel frame and is used to detect the moving speed of the wire rope.

[0020] Furthermore, it also includes a control module, a power supply module, an alarm light, and an antenna. The control module and the power supply module are both installed on the top surface of the base plate. The power supply module, the alarm light, the antenna, the ranging wheel, the speed sensor, the video detection component, and the electromagnetic detection component are all electrically connected to the control module.

[0021] Furthermore, the control module is equipped with a voltage detection terminal to detect the voltage of the power supply module. When the detected voltage of the power supply module is lower than a set value, an alarm light illuminates. The control module is also equipped with several data input terminals, which are connected to the data output terminals of the ranging wheel, speed sensor, video detection component, and electromagnetic detection component via cables to receive terminal data such as movement speed, movement distance or length, video images, and electromagnetic detection data. The control module is also equipped with a communication terminal connected to an antenna to wirelessly transmit the aforementioned terminal data to instruments, systems, or software for wire rope video detection and wire rope electromagnetic detection.

[0022] Furthermore, the magnetic attraction component is an electromagnet, which is connected to the control module and its start and stop are controlled by the control module.

[0023] Furthermore, the electromagnetic detection component includes an electromagnetic detection housing, a magnetic loading module, and a magnetic detection module, wherein the magnetic loading module and the magnetic detection module are installed inside the electromagnetic detection housing.

[0024] Furthermore, the electromagnetic detection housing is a hollow column with a longitudinal opening on one side, which is bolted to the support plate by fixing bolts. It has two non-connected compartments, one of which houses the magnetic loading module and the other of which houses the magnetic detection module. The steel wire rope enters the hollow cavity through the longitudinal opening. The compartment has a through hole to allow the cable to pass through. The magnetic loading module and the magnetic detection module are connected to the control module by cables for magnetic loading planning and weak magnetic detection of the steel wire rope, and the data is transmitted to the control module by cables.

[0025] Furthermore, the video detection component includes a video detection housing and a high-speed camera; the video detection housing is openable and consists of two semi-cylindrical bodies, which are hinged on one side and locked on the other side by a latch. Multiple high-speed cameras are evenly embedded in the inner wall to acquire video image information of the wire rope and transmit it to the control module via a cable.

[0026] The beneficial effects of this utility model are as follows: This utility model can be adsorbed onto the surface of equipment to automatically detect the running wire rope; the combination of video detection and electromagnetic detection technology achieves a detection accuracy of over 95%; it uses a 24V mobile power supply and network transmission to process detection data, reducing energy consumption while improving data processing efficiency and effectively reducing labor costs; it enables timely online detection of wire ropes, shortening the wire rope damage detection cycle, carrying out preventive maintenance, and extending the service life as much as possible while ensuring the safety of the wire rope, thus reducing the replacement costs of wire ropes due to premature scrapping. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure;

[0028] Figure 2 This is a schematic diagram of the electromagnetic detection component structure;

[0029] Figure 3 This is a schematic diagram of the video detection component structure;

[0030] In the diagram: 1-Video detection housing, 2-Lock, 3-Panel, 4-Leg, 5-Base plate, 6-Magnetic suction component, 7-Distance measuring wheel, 8-Wheel frame, 9-Speed ​​sensor, 10-Cable, 11-Antenna, 12-Control module, 13-Alarm light, 14-Power supply module, 15-Electromagnetic detection housing, 16-Wire rope, 17-Pressure wheel, 18-Bearing, 19-Magnetic loading module, 20-Magnetic detection module, 21-High-speed camera. Detailed Implementation

[0031] 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.

[0032] Example 1

[0033] like Figure 1 As shown, a mobile detection device for steel wire ropes on offshore platforms mainly consists of a video detection component, an electromagnetic detection component, and a support component.

[0034] The support assembly consists of a base plate 5, a magnetic suction component 6, support legs 4, a support plate 3, a pressure wheel 17, and a wheel frame 8. The base plate 5 is rectangular, with several arrayed mounting slots on its bottom surface. The magnetic suction component 6 is sheet-like and is embedded in the mounting slots. The support legs 4 are a pair, either plate-shaped or leg-shaped, and are symmetrically fixed at both ends of the top surface of the base plate 5. The support plates 3 are also a pair, horizontally fixed to the top of the support legs 4, and have through holes for mounting fixing bolts. The wheel frame 8 is a frame fixed to the middle of the top surface of the base plate 5. The top of the wheel frame 8 has a shaft hole for mounting the pressure wheel 17, and the pressure wheel 17 is rotatably inserted into the shaft hole through a bearing 18. The video detection component and the electromagnetic detection component are respectively bolted to the support plate 3 with fixing bolts.

[0035] In this embodiment, the support leg 4 is welded to the base plate 5, the support plate 3 is welded to the support leg 4, and the wheel frame 8 is welded to the base plate 5.

[0036] The magnetic attraction component 6 is used to magnetically attract the device to the equipment under test, and can be a magnet or an electromagnet. In use, the clamping wheel 17 is placed above the wire rope 16, pressing the wire rope 16 towards the base plate 5, which serves to guide, stabilize and clamp. The video detection component is used to acquire video image information of the wire rope 16, and the electromagnetic detection component is used to acquire electromagnetic detection data of the wire rope 16. The video image information and electromagnetic monitoring data are provided to the instruments, systems or software for video detection and electromagnetic detection of the wire rope 16 through the communication module to realize the detection of the wire rope 16.

[0037] The instruments, systems, or software used for video and electromagnetic testing of steel wire rope 16 in this utility model are conventional technologies, such as the "Online Real-time Automatic Testing System for Steel Wire Rope 16" developed by Luoyang Wilrop Testing Technology Co., Ltd., etc., which will not be described in detail in this utility model.

[0038] Example 2

[0039] like Figure 1 As shown, a steel wire rope movement detection device for an offshore platform is provided, with a distance measuring wheel 7 and a speed sensor 9 also mounted on the wheel frame 8.

[0040] The wheel frame 8 has a shaft hole in the middle for mounting the distance measuring wheel 7. The distance measuring wheel 7 is rotatably inserted into the wheel frame 8 through the bearing 18, and the wheel surface of the distance measuring wheel 7 is in contact with the wire rope 16; the speed sensor 9 is mounted on the side of the wheel frame 8.

[0041] The measuring wheel 7 can be mechanical or electronic. Mechanical wheels measure distance by the linear distance traveled as the wheel rotates. They typically have a counter; by calculating the number of rotations and the wheel's circumference, the distance traveled is determined. Mechanical wheels are simple in structure and low in cost, but their accuracy is affected by wheel slippage and uneven contact surfaces. Electronic wheels, on the other hand, use electronic sensors to measure distance. When the wheel rotates, the sensor detects the rotation signal and calculates the distance traveled using a built-in microprocessor. Electronic wheels are usually equipped with a display screen to show the measurement results in real time and have high measurement accuracy. Some advanced electronic measuring wheels 7 also have functions such as data storage and area / volume calculation. Therefore, in this embodiment, an electronic wheel is preferred.

[0042] The speed sensor 9 can be photoelectric or mechanical. The photoelectric type detects the motion of an object by emitting and receiving light beams. When the object passes through the detection area of ​​the sensor, it will block or reflect the light, thereby generating a change in electrical signal, which is used to calculate the speed. The mechanical type is connected to the object being measured through mechanical devices such as gears or belts to directly measure its rotational speed or linear speed. Therefore, in this embodiment, the photoelectric type is preferred.

[0043] This embodiment can further acquire the moving speed and distance data of the wire rope 16, providing more complete analysis data to the aforementioned instruments, systems or software for video detection and electromagnetic detection of the wire rope 16, thereby improving the accuracy and usability of the wire rope 16 detection.

[0044] Example 3

[0045] like Figure 1 As shown, a steel wire rope movement detection device for an offshore platform is provided. In this embodiment, the magnetic component 6 is an electromagnet. In addition, a control module 12, a power supply module 14, an alarm light 13 and an antenna 11 are also provided. The control module 12 and the power supply module 14 are both installed on the top surface of the base plate 5.

[0046] The electromagnet, power supply module 14, alarm light 13, antenna 11, ranging wheel 7, speed sensor 9, video detection component and electromagnetic detection component are all electrically connected to the control module 12.

[0047] The control module 12 is used to control the power supply, start / stop, data transmission and reception, and data processing and conversion of the aforementioned modules, devices, or components. Specifically, before use, the electromagnet is activated by the control module 12 so that the device is magnetically attracted to the device under test. The control module 12 has a voltage detection terminal to detect the voltage of the power supply module 14. When the voltage of the power supply module 14 is lower than the set value, the alarm light 13 illuminates. The control module 12 has several data input terminals, which are connected to the data output terminals of the distance measuring wheel 7, speed sensor 9, video detection component, and electromagnetic detection component via cable 10 to receive terminal data of movement speed, movement distance, video image, and electromagnetic detection. The control module 12 has a communication terminal connected to the antenna 11 to wirelessly transmit the aforementioned terminal data to the instruments, systems, or software for video detection and electromagnetic detection of the wire rope 16.

[0048] In this embodiment, the alarm light 13 and antenna 11 are connected to the housing of the control module 12 by a snap-fit ​​method.

[0049] Example 4

[0050] like Figure 1 and 2 As shown, a mobile detection device for steel wire ropes on an offshore platform has an electromagnetic detection component consisting of an electromagnetic detection housing 15, a magnetic loading module 19, and a magnetic detection module 20.

[0051] The electromagnetic detection housing 15 is a hollow column with a longitudinal opening on one side, which is bolted to the support plate 3. It has two non-connected compartments. One compartment contains a magnetic loading module 19, and the other compartment contains a magnetic detection module 20. The steel wire rope 16 enters the hollow compartment through the longitudinal opening. The compartment has a through hole to allow the cable 10 to pass through. The magnetic loading module 19 and the magnetic detection module 20 are connected to the control module 12 through the cable 10 for magnetic loading planning and weak magnetic detection of the steel wire rope 16, and the data is transmitted to the control module 12 through the cable 10.

[0052] Example 5

[0053] like Figure 1 and 3 As shown, a mobile detection device for steel wire ropes on an offshore platform has a video detection component consisting of a video detection housing 1 and a high-speed camera 21.

[0054] The video detection housing 1 is openable and consists of two semi-cylindrical bodies. The two semi-cylindrical bodies are hinged on one side and locked on the other side by a latch 2. Four high-speed cameras 21 are evenly embedded in the inner wall to acquire video image information of the steel wire rope 16 and transmit it to the control module 12 through the cable 10.

[0055] The principle of this utility model is:

[0056] When testing the wire rope 16, first place the device at an appropriate testing position on the equipment under test. Then, energize the electromagnet via the control module 12 to attach the testing device to the surface of the equipment. Remove the clamping wheel 17, unlock the latch 2 on the video detection housing 1, and place the wire rope 16 onto the electromagnetic detection assembly, the ranging wheel 7, and the video detection assembly. Secure the clamping wheel 17 with the bearing 18, close the video detection housing 1, and lock it with the latch 2. Turn on the control module 12. The wire rope 16 passes through the electromagnetic detection assembly, where the internal magnetic loading module 19 and magnetic detection module 20 perform magnetic loading planning and weak magnetic detection. The test data is transmitted via cable 10. The data is transmitted to the control module 12, and then to the processing system or software via the wireless antenna 11; the wire rope 16 drives the measuring wheel 7 to rotate, and the length and speed data of the wire rope 16 are transmitted to the control module 12 via the measuring wheel 7 and the speed sensor 9 through the cable 10, and then to the background analysis system via the wireless antenna 11; the wire rope 16 then passes through the video detection component, and the high-speed camera 21 inside records the image information of the wire rope 16, which is transmitted to the control module 12 via the cable 10, and then to the system for analysis via the wireless antenna 11; when the running speed of the wire rope 16 is too fast or the power supply module 14 has low power, the control module 12 controls the alarm light 13 to issue an audible and visual alarm indication.

[0057] The electromagnetic detection component performs continuous, non-contact, equidistant weak magnetic induction detection on microscopic defects, early failures, and damage in the stress concentration area inside the wire rope 16. It collects information on the magnetic field differences in the wire rope 16 and analyzes it in conjunction with the image data collected synchronously by the video detection component to determine whether the wire rope 16 has various damages such as broken wires, wear, corrosion, and fatigue, thereby avoiding accidents involving the wire rope 16 and loss of life and property.

[0058] 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 device for detecting the movement of a steel wire rope on an offshore platform, comprising a video detection component and an electromagnetic detection component for detecting the steel wire rope (16), characterized in that, It also includes a support assembly, which includes a base plate (5), a magnetic suction component (6), support legs (4), a support plate (3), a pressure wheel (17), and a wheel frame (8); the magnetic suction component (6) is embedded in the bottom surface of the base plate (5), and two support legs (4) are provided in pairs at both ends of the top surface of the base plate (5). The support plate (3) is provided at the top of the support legs (4), and the video detection component and the electromagnetic detection component are installed on the support plate (3); the wheel frame (8) is located in the middle of the top surface of the base plate (5), and the pressure wheel (17) is rotatably installed at the top of the wheel frame (8).

2. The offshore platform wire rope movement detection device according to claim 1, characterized in that, The support legs (4) are a pair, which are in the shape of upright plates or upright legs, and are symmetrically fixed at both ends of the top surface of the base plate (5); the support plates (3) are also a pair, which are horizontally fixed at the top of the support legs (4) respectively, and have through holes for installing fixing bolts; the wheel frame (8) is a frame fixed at the middle position of the top surface of the base plate (5), and the top of the wheel frame (8) has a shaft hole for installing the pressure wheel (17), and the pressure wheel (17) is inserted into the shaft hole by rotating through the bearing (18); the video detection component and the electromagnetic detection component are respectively bolted to the support plate (3) by fixing bolts.

3. A device for detecting the movement of steel wire ropes on an offshore platform according to claim 1 or 2, characterized in that, It also includes a measuring wheel (7), which is rotatably mounted below the pressure wheel (17). During testing, the pressure wheel (17) presses the wire rope (16) against the measuring wheel (7), and the wheel surface of the measuring wheel (7) contacts the wire rope (16) to detect the length or moving distance of the wire rope (16).

4. The offshore platform wire rope movement detection device according to claim 3, characterized in that, It also includes a speed sensor (9), which is mounted on the side of the wheel frame (8) and is used to detect the moving speed of the wire rope (16).

5. The offshore platform wire rope movement detection device according to claim 4, characterized in that, It also includes a control module (12), a power supply module (14), an alarm light (13), and an antenna (11). The control module (12) and the power supply module (14) are both installed on the top surface of the base plate (5). The power supply module (14), the alarm light (13), the antenna (11), the ranging wheel (7), the speed sensor (9), the video detection component, and the electromagnetic detection component are all electrically connected to the control module (12).

6. The offshore platform wire rope movement detection device according to claim 5, characterized in that, The control module (12) is equipped with a voltage detection terminal to detect the voltage of the power supply module (14). When the voltage of the power supply module (14) is lower than the set value, the alarm light (13) will light up. The control module (12) is equipped with several data input terminals, which are connected to the data output terminals of the measuring wheel (7), speed sensor (9), video detection component and electromagnetic detection component via cable (10) to receive terminal data of moving speed, moving distance or length, video image and electromagnetic detection. The control module (12) is equipped with a communication terminal, which is connected to the antenna (11) to wirelessly transmit the aforementioned terminal data to the instrument, system or software for video detection and electromagnetic detection of the wire rope (16).

7. The offshore platform wire rope movement detection device according to claim 6, characterized in that, The magnetic attraction component (6) is an electromagnet, which is connected to the control module (12) and is controlled to start and stop through the control module (12).

8. The offshore platform wire rope movement detection device according to claim 7, characterized in that, The electromagnetic detection assembly includes an electromagnetic detection housing (15), a magnetic loading module (19), and a magnetic detection module (20), wherein the magnetic loading module (19) and the magnetic detection module (20) are installed inside the electromagnetic detection housing (15).

9. The offshore platform wire rope movement detection device according to claim 8, characterized in that, The electromagnetic detection housing (15) is a hollow column with a longitudinal opening on one side, which is bolted to the support plate (3) by fixing bolts. It has two non-connected compartments, one of which contains a magnetic loading module (19) and the other contains a magnetic detection module (20). The steel wire rope (16) enters the hollow compartment through the longitudinal opening. The compartment has a through hole to accommodate the cable (10) to pass through. The magnetic loading module (19) and the magnetic detection module (20) are connected to the control module (12) through the cable (10) for magnetic loading planning and weak magnetic detection of the steel wire rope (16), and are transmitted to the control module (12) through the cable (10).

10. A device for detecting the movement of steel wire ropes on an offshore platform according to any one of claims 7-9, characterized in that, The video detection component includes a video detection housing (1) and a high-speed camera (21). The video detection housing (1) is openable and consists of two semi-cylindrical bodies. The two semi-cylindrical bodies are hinged on one side and locked on the other side by a latch (2). Multiple high-speed cameras (21) are evenly embedded in the inner wall to acquire video image information of the wire rope (16) and transmit it to the control module (12) through a cable (10).

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