A sample collection device for detecting corrosion of an above-ground steel pipeline

Abstract

The utility model relates to the technical field of anticorrosive coating detection, disclose a kind of sample collection equipment for anticorrosion detection of ground steel pipeline, including detection ring, the slide rail is fixedly connected in detection ring inside, the sliding slot is opened in slide rail inside, the sliding block is slidably connected in the inside of slide rail, the rotating wheel is rotatably connected in the left and right sides of the sliding block bottom, the dissolving plate is slidably connected in the outside of sliding block, the link rod is movably connected in the inside of dissolving plate, the link rod is movably connected in the inside of dissolving plate, the detection plate is fixedly connected in the outside of sliding block, the detection plate top side is fixedly connected with buffer ring, in the utility model, by detection ring encircles fixed in the outside of pipeline, by motor drive rotating disc cooperation sliding block along slide rail rotation, dissolving plate dissolves pipeline surface, detection plate is contacted by buffer and collected data, realizes automatic anticorrosion detection and sample collection.

Description

Technical Field

[0001] This utility model relates to the field of anti-corrosion layer detection technology, and in particular to a sample collection device for detecting corrosion of above-ground steel pipelines. Background Technology

[0002] With the rapid development of industries such as oil and gas and chemicals, the scale of service of above-ground steel pipelines, as the core facilities for media transportation, continues to expand. A large number of pipelines have entered their aging period and are facing increasingly severe corrosion problems. Pipeline corrosion can not only lead to media leakage, causing economic losses and safety accidents, but also cause serious damage to the surrounding ecological environment. Therefore, the detection and evaluation of pipeline corrosion protection systems has become a key link in ensuring the safe operation of facilities.

[0003] The traditional sample collection equipment currently used for corrosion testing of steel pipes uses a built-in solvent storage tank and a penetration nozzle to evenly spray a special stripping solvent onto the surface of the pipe coating. The solvent's swelling and softening effect on the coating reduces the adhesion between the coating and the pipe substrate. Then, the operator uses a matching soft scraper to gently scrape off the softened coating sample.

[0004] While existing traditional steel pipe corrosion testing sample collection equipment can collect samples from steel pipes, it is difficult to perform comprehensive testing and collection of samples from the pipes, and it cannot be adjusted according to the length of different pipes. Therefore, a ground-based steel pipe corrosion testing sample collection device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a sample collection device for corrosion testing of above-ground steel pipelines, aiming to improve the problems of uneven detection and collection in the existing technology and the difficulty in freely adjusting the device according to the steel pipeline.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A sample collection device for corrosion testing of above-ground steel pipelines includes a detection ring, a slide rail fixedly connected to the inner side of the detection ring, a sliding groove formed on the inner side of the slide rail, sliders slidably connected to each slide rail, rotating wheels rotatably connected to the left and right sides of the bottom of each slider, a dissolving plate slidably connected to each slider, a connecting rod movably connected to the inner side of the dissolving plate, the outer periphery of the connecting rod movably connected to the inner side of the dissolving plate, a detection plate fixedly connected to the outer side of the slider, a buffer ring fixedly connected to the top side of the detection plate, a collection plate slidably connected to the top side of the buffer ring, and multiple transmitters fixedly connected to the inner side of the buffer ring.

[0008] As a further description of the above technical solution:

[0009] Multiple connecting holes are provided on the inner side of the detection ring, and multiple connecting rods are slidably connected to the inner side of the detection ring. The connecting rods are slidably connected to the inner side of the connecting holes. A motor frame is fixedly connected to the left side of the connecting rod, and a limit frame is fixedly connected to the right side of the connecting rod.

[0010] As a further description of the above technical solution:

[0011] The outer side of the slide rail is slidably connected to the bottom side of the detection plate, and the outer side of the slide rail is slidably connected to the bottom side of the dissolving plate;

[0012] As a further description of the above technical solution:

[0013] The bottom side of the limiting frame is fixedly connected to a base, and the top side of the base is fixedly connected to the bottom side of the motor frame;

[0014] As a further description of the above technical solution:

[0015] A motor is fixedly connected to the outside of the motor frame;

[0016] As a further description of the above technical solution:

[0017] The bottom side of the detection ring is slidably connected to the top side of the base, and the collector is fixedly connected to the left side of the base.

[0018] As a further description of the above technical solution:

[0019] A rotating disk is rotatably connected to the right side of the motor frame, and the motor drive end is fixedly connected to the inside of the rotating disk.

[0020] As a further description of the above technical solution:

[0021] A telescopic cylinder is fixedly connected to the front side of the rotating disk, a telescopic rod is slidably connected to the inner side of the telescopic cylinder, and the outer side of the telescopic rod is fixedly connected to the outer side of the slider.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, the motor drives the rotating disk to extend and retract the telescopic cylinder and telescopic rod, which in turn drives the slider to slide along the inner sliding groove of the slide rail. At the same time, the rotating wheel at the bottom of the slider assists in the sliding, thereby realizing that the slider drives the detection plate and the collection plate to slide smoothly along the surface of the pipe, fully covering the circumference and axial detection area of ​​the pipe, and avoiding the effect of detection omission.

[0024] 2. In this utility model, the position of the connecting rod is adjusted along the connecting hole of the detection ring, which drives the slide rail to adapt to pipes of different diameters with the detection ring. At the same time, the slider flexibly adjusts its lateral position along the slide rail, thereby realizing the matching of the slide rail and the slider to the changes in pipe specifications. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a sample collection device for corrosion detection of above-ground steel pipelines proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the dissolution plate of a sample collection device for corrosion detection of above-ground steel pipelines proposed in this utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the detection ring of a sample collection device for corrosion testing of above-ground steel pipelines proposed in this utility model;

[0028] Figure 4 This is a schematic diagram of the telescopic rod of a sample collection device for corrosion testing of above-ground steel pipelines proposed in this utility model;

[0029] Figure 5 This is a schematic diagram of the rotating disk of a sample collection device for corrosion detection of above-ground steel pipelines proposed in this utility model.

[0030] Legend:

[0031] 1. Detection ring; 2. Connecting hole; 3. Slide rail; 4. Sliding groove; 5. Slider; 6. Dissolving plate; 7. Connecting rod; 8. Rotating wheel; 9. Detection plate; 10. Acquisition plate; 11. Buffer ring; 12. Transmitter; 13. Telescopic rod; 14. Telescopic cylinder; 15. Connecting rod; 16. Limiting frame; 17. Motor frame; 18. Rotating disk; 19. Base; 20. Acquisition device; 21. Motor. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Reference Figures 1-3This utility model provides an embodiment of a sample collection device for corrosion detection of above-ground steel pipes, including a detection ring 1. The main frame component of this device has a ring-shaped structure and can surround the outside of the above-ground steel pipe to be tested, providing a foundation for the installation and support of other components, ensuring that all components can work together for pipe detection. A slide rail 3 is fixedly connected to the inner side of the detection ring 1. Its main function is to provide a sliding track for a slider 5, allowing the slider 5 to slide smoothly along the direction of the slide rail 3, thereby adjusting the relative position of the relevant detection components with respect to the pipe surface. A sliding groove 4 is provided on the inner side of the slide rail 3, the shape of which is adapted to the rotating wheel 8 at the bottom of the slider 5, limiting and guiding the movement of the rotating wheel 8, preventing the slider 5 from deviating from the slide rail 3 during sliding. To ensure the stability of the sliding of slider 5, sliders 5 are slidably connected to the inner side of slide rail 3. Their main function is to support components such as dissolving plate 6 and detection plate 9. By sliding on slide rail 3, they move these components closer to or away from the pipe surface, enabling precise sample collection and testing. Rotating wheels 8 are rotatably connected to the left and right sides of the bottom of slider 5, allowing them to rotate around the connecting shaft. These wheels convert the sliding friction between slider 5 and slide rail 3 into rolling friction, greatly reducing the resistance during sliding and making the sliding of slider 5 on slide rail 3 smoother and less strenuous. Dissolving plates 6 are slidably connected to the outer side of slider 5, and can hold chemical reagents for dissolving corrosion on the pipe surface. The distance between the slider 5 and the pipe surface is adjusted by sliding, allowing the contact plate to reach the pipe surface. During the process, the reagent can fully react with and dissolve the corrosive substances, facilitating subsequent collection of corrosion samples. A connecting rod 7 is movably connected to the inner side of the dissolving plate 6, and the outer periphery of the connecting rod 7 is movably connected to the inner side of the dissolving plate 6. This enhances the structural strength of the dissolving plate 6 and allows for flexible angle adjustment within a certain range, ensuring that the dissolving plate 6 can better conform to pipe surfaces of different curvatures and improve the dissolution effect of the corrosive substances. A detection plate 9 is fixedly connected to the outer side of the slider 5, serving as the carrier for mounting the collection piece 10 and the buffer ring 11. It provides stable support for these detection components, ensuring that the collection piece 10 and the buffer ring 11 are at the appropriate height and position, so that the pipe surface can be promptly inspected after the dissolving plate 6 has processed the pipe. A buffer ring 11 is fixedly connected to the top side of the detection plate 9. Made of elastic material, the sampling plate 10 is fixed to the top side of the detection plate 9. When the sampling plate 10 contacts the pipe surface, it can buffer and dampen the shock, preventing damage to the sampling plate 10 due to hard contact with the pipe. At the same time, it ensures that the sampling plate 10 fits tightly with the pipe surface, improving detection accuracy. The sampling plate 10 is slidably connected to the top side of the buffer ring 11, which can directly contact the pipe surface after the dissolution treatment. It is used to collect information such as the physical and chemical properties of the corroded parts of the pipe and is the core component for obtaining detection data. Multiple transmitters 12 are fixedly connected to the inner side of the buffer ring 11. They are the key components for data transmission, which can quickly and accurately transmit the pipe corrosion information collected by the sampling plate 10 to the equipment's data analysis system, providing real-time data support for subsequent pipe corrosion assessment.

[0034] Reference Figures 3-5 The inner side of the detection ring 1 has multiple connecting holes 2 for inserting connecting rods 15, providing installation channels for the connecting rods 15 and allowing them to slide within the holes. This allows adjustment of the extension length of the connecting rods 15 according to the pipe diameter, adapting to pipes of different sizes. Multiple connecting rods 15 are slidably connected to the inner side of the detection ring 1, sliding within the connecting holes 2. The connecting rods 15 pass through the connecting holes 2 and are slidably connected to the detection ring 1. They serve as an intermediate component connecting the detection ring 1 to the motor frame 17 and the limiting frame 16. By sliding within the connecting holes 2, the motor frame 17 and the limiting frame 16 can be adjusted. The distance between the 6 and the detection ring 1 ensures that the equipment can adapt to the inspection of pipes with different diameters. The motor frame 17 is fixedly connected to the left side of the connecting rod 15. Its main function is to fix and support the motor 21, provide a stable installation base for the motor 21, prevent the motor 21 from shaking or shifting during operation, and ensure that the motor 21 can output power stably. The limit frame 16 is fixedly connected to the right side of the connecting rod 15. It is located on both sides of the detection ring 1 along with the motor frame 17. It can work with the motor frame 17 to limit the detection ring 1, prevent the detection ring 1 from shifting left or right during operation, and enhance the overall structural stability of the equipment.

[0035] Reference Figures 1-5The outer side of the slide rail 3 is slidably connected to the bottom side of the detection plate 9 and the bottom side of the dissolving plate 6, providing additional support and guidance for the detection plate 9 and the dissolving plate 6. This ensures that these two components do not tilt or jam when sliding with the slider 5, guaranteeing the stability of the detection and sampling process. The bottom side of the limit frame 16 is fixedly connected to the base 19, which is the bottom support structure of the equipment. Its large area allows the entire equipment to be placed stably on the ground, bearing the weight of each component and preventing the equipment from tipping over due to instability during operation, thus ensuring the safety of the detection operation. The top side of the base 19 is fixedly connected to the bottom side of the motor frame 17, further enhancing the stability of the motor frame 17. 7. The motor 21 remains stable even when vibrating during operation, preventing vibration transmission from affecting the normal operation of other components. The motor 21 is fixedly connected to the outside of the motor frame 17, serving as the power source for the equipment. After being powered on, it outputs rotational power through the drive end, providing power for the rotation of the rotating disk 18, which in turn drives components such as the slider 5 to slide, realizing automated detection and sampling of the equipment. The bottom side of the detection ring 1 is slidably connected to the top side of the base 19, allowing the detection ring 1 to be adjusted horizontally on the base 19, facilitating precise alignment according to the actual position of the pipe to be detected, ensuring that the detection ring 1 can be accurately fitted onto the outside of the pipe, and improving the convenience of detection. The collector 2 is fixedly connected to the left side of the base 19. The internal structure includes a sample storage chamber and a data receiving module. It can collect pipe corrosion samples obtained after dissolving the dissolving plate 6, and also receive detection data transmitted by the transmitter 12, enabling centralized management of samples and data for convenient subsequent analysis. A rotating disk 18 is rotatably connected to the right side of the motor frame 17, converting the rotational power of the motor 21 into the power to push the slider 5. This rotation drives the movement of related components, achieving power transmission. The drive end of the motor 21 is fixedly connected to the inner side of the rotating disk 18. A telescopic cylinder 14, a hollow tubular structure, is fixedly connected to the front of the rotating disk 18, providing sliding space for the telescopic rod 13. When the rotating disk 18 rotates, the telescopic cylinder 14 moves in a circular motion. The telescopic cylinder 14 is slidably connected to the telescopic rod 13, which can extend and retract axially within the telescopic cylinder 14. Its function is to convert the circular motion of the rotating disk 18 into the motion of the slider 5 along the track. When the rotating disk 18 rotates, the telescopic rod 13 will extend and retract accordingly, pushing the slider 5 to slide on the slide rail 3. The telescopic rod 13 is fixedly connected to the outside of the slider 5, which can directly transmit the extension force of the telescopic rod 13 to the slider 5, so that the slider 5 slides smoothly along the slide rail 3 under the push of the telescopic rod 13, thereby driving the dissolution plate 6, detection plate 9 and other components to slide to the appropriate position, and completing the sample collection work for pipeline corrosion detection.

[0036] Working principle: First, the annular detection ring 1 is placed around the outside of the steel pipe to be inspected. Depending on the required pipe length, the positions of the motor frame 17 and the limiting frame 16 can be adjusted by multiple connecting rods 15 slidably connected within the connecting holes 2 of the detection ring 1. This allows the equipment to adapt to different lengths and ensures overall structural stability. The limiting frame 16 and the motor frame 17 are located on opposite sides of the detection ring 1, working together to limit the offset of the detection ring 1. The motor 21 is started, and its drive end rotates the rotating disk 18. The telescopic cylinder 14, fixedly connected to the front of the rotating disk 18, then performs a circular motion, pushing the telescopic rod 13 slidably connected inside to produce axial telescopic movement. The slider 5 is fixedly connected to the outside of the telescopic rod 13, so that the slider 5 slides along the inside of the slide rail 3. The bottom of the slider 5 rolls with the sliding groove 4 on the inside of the slide rail 3 through the rotating wheel 8, which effectively reduces frictional resistance and makes the sliding smoother. When the slider 5 slides, it drives the dissolving plate 6 and the detection plate 9 that are slidably connected to its outside to slide synchronously, so that they are close to or away from the pipe surface. The dissolving plate 6 is filled with chemical reagents that can dissolve the corrosion on the pipe surface. By adjusting it to contact the pipe surface, the reagent reacts with the corrosion and dissolves it, preparing for subsequent sampling. The dissolving plate 6 maintains its structural strength and adapts to the curvature of the pipe through the connecting rod 7 that is movably connected to its inside.

[0037] Subsequently, the sampling plate 10 on the top side of the detection plate 9, under the elastic buffering effect of the buffer ring 11, closely adheres to the pipe surface, collecting data on the physical and chemical properties of the pipe surface after the dissolution treatment. The buffer ring 11 prevents the sampling plate 10 from being damaged due to hard contact. The detected data is transmitted in real time to the data receiving system through multiple transmitters 12 fixed inside the buffer ring 11. The base 19 provides stable support for the equipment, and the sampling device 20 fixed on its left side is responsible for collecting the dissolved corrosion sample and receiving the detection data sent by the transmitters 12, realizing centralized management of samples and data. The entire working process is automated by the motor 21, completing the corrosion detection and sample collection of the above-ground steel pipe.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sample collection device for the detection of corrosion protection of above-ground steel pipelines, comprising a detection ring (1), characterized in that: The inner side of the detection ring (1) is fixedly connected to a slide rail (3), and a sliding groove (4) is opened on the inner side of the slide rail (3). A slider (5) is slidably connected to the inner side of the slide rail (3). Rotating wheels (8) are rotatably connected to the left and right sides of the bottom of the slider (5). A dissolving plate (6) is slidably connected to the outer side of the slider (5). A connecting rod (7) is movably connected to the inner side of the dissolving plate (6). The outer periphery of the connecting rod (7) is movably connected to the inner side of the dissolving plate (6). A detection plate (9) is fixedly connected to the outer side of the slider (5). A buffer ring (11) is fixedly connected to the top side of the detection plate (9). A collection piece (10) is slidably connected to the top side of the buffer ring (11). Multiple transmitters (12) are fixedly connected to the inner side of the buffer ring (11).

2. The sample collection apparatus for corrosion detection of above ground steel pipelines according to claim 1, characterized in that: Multiple connecting holes (2) are provided on the inner side of the detection ring (1). Multiple connecting rods (15) are slidably connected to the inner side of the detection ring (1). The connecting rods (15) are slidably connected to the inner side of the connecting holes (2). A motor frame (17) is fixedly connected to the left side of the connecting rod (15), and a limit frame (16) is fixedly connected to the right side of the connecting rod (15).

3. The sample collection apparatus for corrosion detection of above ground steel pipelines according to claim 1, characterized in that: The outer side of the slide rail (3) is slidably connected to the bottom side of the detection plate (9), and the outer side of the slide rail (3) is slidably connected to the bottom side of the dissolving plate (6).

4. The sample collection apparatus for corrosion detection of above ground steel pipelines according to claim 2, characterized in that: The bottom side of the limiting frame (16) is fixedly connected to the base (19), and the top side of the base (19) is fixedly connected to the bottom side of the motor frame (17).

5. A sample collection device for corrosion detection of above ground steel pipelines according to claim 4, characterized in that: A motor (21) is fixedly connected to the outside of the motor frame (17).

6. The sample collection apparatus for corrosion detection of above ground steel pipelines according to claim 1, characterized in that: The bottom side of the detection ring (1) is slidably connected to the top side of the base (19), and the collector (20) is fixedly connected to the left side of the base (19).

7. A sample collection device for corrosion detection of above ground steel pipelines according to claim 5, characterized in that: The motor frame (17) is rotatably connected to a rotating disk (18) on its right side, and the drive end of the motor (21) is fixedly connected to the inside of the rotating disk (18).

8. A sample collection device for corrosion detection of above ground steel pipelines according to claim 7, characterized in that: A telescopic cylinder (14) is fixedly connected to the front side of the rotating disk (18), and a telescopic rod (13) is slidably connected to the inner side of the telescopic cylinder (14). The outer side of the telescopic rod (13) is fixedly connected to the outer side of the slider (5).

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