A petrochemical pipeline non-destructive testing device

Abstract

The utility model relates to pipeline detection technical field and disclose a kind of petrochemical pipeline nondestructive testing equipment, the petrochemical pipeline nondestructive testing equipment, including connecting ring, the surface rotation of connecting ring is equipped with gear ring, the side surface of gear ring is fixedly connected with mounting bracket, the lower surface of mounting bracket is fixedly installed with a group of detection probe, and one end of mounting bracket is provided with cleaning assembly;The surface of connecting ring is fixedly equipped with protective ring, the protective ring is hollow and is equipped with a movable groove in side surface, gear wheel is rotatably installed between the inner wall of protective ring, and gear wheel and gear ring are engaged with each other;The operation of the drive motor makes detection probe circumferential motion around pipeline, realizes pipeline comprehensive detection, reduces missed detection;While cleaning assembly can synchronous clean pipeline surface dust, avoid to cause influence to detection, improve detection precision;And cleaning assembly can be quickly disassembled, and it is convenient to maintain.

Description

Technical Field

[0001] This utility model relates to the field of pipeline inspection technology, specifically to a non-destructive testing device for petrochemical pipelines. Background Technology

[0002] Non-destructive testing (NDT) refers to the technology of detecting defects, chemical parameters, and other properties in materials, parts, and equipment without damaging or affecting their performance. It utilizes principles and techniques such as radiography, ultrasound, infrared radiation, and electromagnetics, combined with appropriate instruments. For pipeline inspection, petrochemical pipeline NDT equipment is commonly used. This equipment detects pipeline defects or corrosion by using electromagnetic and ultrasonic waves that circulate around the pipeline.

[0003] A scanning frame for non-destructive testing of pipelines, disclosed in publication CN 222747099 U, includes a main structure, a testing mechanism, and an auxiliary mechanism. The testing mechanism is fixedly mounted on the main structure, and the auxiliary mechanism is fixedly mounted on one side of the main structure. The main structure includes a first fixing ring, a second fixing ring, a first fixing block, a second fixing block, a fixing bolt, a movable groove, support wheels, a pipeline, and an inner cavity. The second fixing ring is fixedly mounted on one side of the first fixing ring. In use, this scanning frame for non-destructive testing of pipelines utilizes a motor to rotate pulleys, allowing the working box to carry the detector to inspect the pipeline. Because the height of the working box does not exceed the surface area of ​​the first and second fixing rings, the device occupies a small space, facilitating testing in confined spaces and improving testing efficiency.

[0004] However, the above technical solutions still have some shortcomings in use. On the one hand, the detection components can only move along the pipeline axis, making it difficult to achieve full coverage detection around the pipeline circumference. This can easily lead to missed detection of local defects in the circumference of the pipeline due to blind spots, and the integrity of the detection cannot be guaranteed. On the other hand, petrochemical pipelines are exposed to outdoor or industrial environments for a long time, and their surfaces are prone to adhering to impurities such as dust, oil, and rust debris. Existing devices lack a synchronous cleaning structure, and impurities can interfere with the transmission of detection signals, resulting in a decrease in detection accuracy and even misjudgment. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a non-destructive testing device for petrochemical pipelines. It solves two problems: First, the testing components can only move along the pipeline's axial direction, making it difficult to achieve comprehensive circumferential testing. This can easily lead to missed detections of local circumferential defects due to blind spots, thus failing to guarantee the integrity of the testing. Second, petrochemical pipelines are exposed to outdoor or industrial environments for extended periods, and their surfaces are prone to accumulating dust, oil, rust debris, and other impurities. Existing devices lack a synchronous cleaning structure, and these impurities can interfere with the transmission of testing signals, leading to decreased testing accuracy and even misjudgments.

[0006] This utility model provides the following technical solution: a non-destructive testing device for petrochemical pipelines, including a connecting ring, a toothed ring rotatably mounted on the surface of the connecting ring, a mounting frame fixedly connected to the side of the toothed ring, a set of testing probes fixedly mounted on the lower surface of the mounting frame, and a cleaning component provided at one end of the mounting frame;

[0007] A protective ring is fixedly fitted on the surface of the connecting ring. The protective ring is hollow and has a movable groove on its side. A gear is rotatably installed between the inner walls of the protective ring, and the gear meshes with the gear ring.

[0008] The cleaning assembly includes a brush plate, the lower surface of which is provided with bristles.

[0009] Preferred technical solution 1: The upper surface of the brush plate is fixedly connected to the insert plate, and the upper surface of the mounting bracket is provided with a slot that matches the insert plate.

[0010] Preferred technical solution 2: An installation box is fixedly installed on the upper surface of the mounting frame, a screw is rotatably installed between the inner walls of the installation box, a threaded sleeve is threaded onto the surface of the screw, a clamping plate is fixedly connected to the surface of the threaded sleeve, a plurality of locking rods are fixedly connected to the surface of the clamping plate, and a plurality of locking grooves matching the locking rods are opened on the surface of the insert plate.

[0011] Preferred technical solution 3: A sliding rod is fixedly connected between the inner walls of the mounting box, a sliding sleeve is fixedly connected to the surface of the sliding rod, and the sliding sleeve is fixedly connected to the clamping plate.

[0012] Preferred technical solution four: A drive motor is fixedly connected to the surface of the protective ring, and the output end of the drive motor extends into the interior of the protective ring and is fixedly connected to the gear.

[0013] Preferred technical solution five: The inner wall of the connecting ring is provided with multiple rollers.

[0014] Compared with existing technologies, this utility model provides a non-destructive testing device for petrochemical pipelines, which has the following advantages: In use, a connecting ring is first fitted onto the petrochemical pipeline to be tested. Multiple rollers on the inner wall of the connecting ring are in contact with the outer wall of the pipeline, allowing the device to move axially along the pipeline. Then, the drive motor is started, driving the gear to rotate. Since the gear meshes with the toothed ring rotatably mounted on the surface of the connecting ring, the rotation of the gear causes the toothed ring to rotate synchronously around the connecting ring. The mounting bracket fixedly connected to the side of the toothed ring also rotates synchronously. A set of detection probes fixedly mounted on the lower surface of the mounting bracket moves around the pipeline circumference with the mounting bracket, thus performing comprehensive non-destructive testing on the outer and internal defects of the pipeline. Simultaneously, a cleaning component set at one end of the mounting bracket moves synchronously with the mounting bracket. The bristles on the lower surface of the brush plate in the cleaning component contact the outer wall of the pipeline, cleaning the pipeline surface during movement. The device cleans dust and stains from the surface to ensure detection accuracy. If brush plate replacement or maintenance is required, rotate the screw mounted on the inner wall of the mounting box fixed to the upper surface of the mounting bracket. This moves the clamp plate fixedly connected to the screw sleeve, causing multiple locking rods fixedly connected to its surface to disengage from the slots on the insert plate. The insert plate can then be removed from the slot on the upper surface of the mounting bracket, completing the brush plate disassembly. To replace the brush plate, simply insert the new brush plate into the slot and rotate the screw in the opposite direction to re-engage the locking rods, thus fixing the brush plate in place. The device uses a drive motor to make the detection probe move circumferentially around the pipe, achieving comprehensive pipe inspection and reducing missed detections. Simultaneously, the cleaning component cleans dust from the pipe surface, preventing interference with monitoring and improving detection accuracy. Furthermore, the cleaning component can be quickly disassembled and assembled for easy maintenance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional view of the protective ring and connecting ring structure of this utility model;

[0017] Figure 3 This is an exploded view of the mounting bracket and cleaning components of this utility model;

[0018] Figure 4 This is a schematic diagram of the back structure of the protective ring of this utility model.

[0019] In the diagram: 1. Connecting ring; 2. Gear ring; 3. Mounting bracket; 4. Detection probe; 5. Protective ring; 6. Movable groove; 7. Gear; 8. Brush plate; 9. Brush bristles; 10. Insert plate; 11. Slot; 12. Mounting box; 13. Screw; 14. Screw sleeve; 15. Clamping plate; 16. Locking rod; 17. Locking groove; 18. Slide rod; 19. Slide sleeve; 20. Drive motor; 21. Roller. Detailed Implementation

[0020] Please see Figure 1-4 ,

[0021] Example 1: A non-destructive testing device for petrochemical pipelines includes a connecting ring 1, a toothed ring 2 rotatably mounted on the surface of the connecting ring 1, a mounting frame 3 fixedly connected to the side of the toothed ring 2, a set of testing probes 4 fixedly mounted on the lower surface of the mounting frame 3, and a cleaning component provided at one end of the mounting frame 3.

[0022] A protective ring 5 is fixedly fitted on the surface of the connecting ring 1. The protective ring 5 is hollow and has a movable groove 6 on its side. A gear 7 is rotatably installed between the inner walls of the protective ring 5. The gear 7 meshes with the gear ring 2.

[0023] The cleaning assembly includes a brush plate 8, the lower surface of which is provided with bristles 9.

[0024] Example 2: The difference between this example and Example 1 is that the upper surface of the brush plate 8 is fixedly connected to the insert plate 10, and the upper surface of the mounting bracket 3 is provided with a slot 11 that matches the insert plate 10.

[0025] Example 3: The difference between this example and Example 1 is that, in this example, an installation box 12 is fixedly installed on the upper surface of the mounting bracket 3, a screw 13 is rotatably installed between the inner walls of the installation box 12, a screw sleeve 14 is threaded onto the surface of the screw 13, a clamping plate 15 is fixedly connected to the surface of the screw sleeve 14, a plurality of clamping rods 16 are fixedly connected to the surface of the clamping plate 15, and a plurality of slots 17 matching the clamping rods 16 are opened on the surface of the insert plate 10.

[0026] Example 4: The difference between this example and Example 1 is that a sliding rod 18 is fixedly connected between the inner walls of the mounting box 12, a sliding sleeve 19 is fixedly connected to the surface of the sliding rod 18, and the sliding sleeve 19 is fixedly connected to the clamping plate 15.

[0027] Example 5: The difference between this example and Example 1 is that a drive motor 20 is fixedly connected to the surface of the protective ring 5, and the output end of the drive motor 20 extends into the interior of the protective ring 5 and is fixedly connected to the gear 7.

[0028] Example 6: The difference between this example and Example 1 is that the inner wall of the connecting ring 1 is provided with multiple rollers 21.

[0029] In summary, when using this non-destructive testing equipment for petrochemical pipelines, the connecting ring 1 is first placed on the petrochemical pipeline to be tested. Multiple rollers 21 on the inner wall of the connecting ring 1 are in contact with the outer wall of the pipeline, allowing the equipment to move axially along the pipeline. Then, the drive motor 20 is started, causing the gear 7 to rotate. Since the gear 7 meshes with the gear ring 2 rotatably mounted on the surface of the connecting ring 1, the rotation of the gear 7 causes the gear ring 2 to rotate synchronously around the connecting ring 1. The mounting frame 3, fixedly connected to the side of the gear ring 2, also rotates synchronously. A set of testing probes 4, fixedly mounted on the lower surface of the mounting frame 3, moves around the pipeline circumference with the mounting frame 3, thus performing comprehensive non-destructive testing on the outer and internal defects of the pipeline. Simultaneously, a cleaning component at one end of the mounting frame 3 moves synchronously with the mounting frame 3. The bristles 9 on the lower surface of the brush plate 8 in the cleaning component contact the outer wall of the pipeline, cleaning dust and stains from the pipeline surface during movement to ensure testing accuracy. If the brush plate 8 needs to be replaced or maintained, the screw 13 fixedly mounted on the inner wall of the mounting box 12 on the upper surface of the mounting bracket 3 can be rotated to move the clamping plate 15 fixedly connected to the surface of the screw sleeve 14, causing the multiple locking rods 16 fixedly connected to its surface to disengage from the slots 17 opened on the surface of the insert plate 10. At this time, the insert plate 10 can be removed from the slot 11 opened on the upper surface of the mounting bracket 3, completing the disassembly of the brush plate 8. When replacing the new brush plate 8, simply insert the insert plate 10 of the new brush plate 8 into the slot 11, and rotate the screw 13 in the opposite direction to make the locking rods 16 re-engage into the slots 17, thus achieving the fixed installation of the brush plate 8. The device drives the motor 20 to make the detection probe 4 move around the pipeline in a circle, achieving comprehensive pipeline detection and reducing missed detections. At the same time, the cleaning component can simultaneously clean the dust on the pipeline surface, avoiding the impact on monitoring and improving detection accuracy. Furthermore, the cleaning component can be quickly disassembled and assembled, facilitating maintenance.

Claims

1. A non-destructive testing device for petrochemical pipelines, comprising a connecting ring (1), characterized in that: A toothed ring (2) is rotatably mounted on the surface of the connecting ring (1), and a mounting bracket (3) is fixedly connected to the side of the toothed ring (2). A set of detection probes (4) is fixedly mounted on the lower surface of the mounting bracket (3), and a cleaning component is provided at one end of the mounting bracket (3). A protective ring (5) is fixedly sleeved on the surface of the connecting ring (1). The protective ring (5) is hollow and has a movable groove (6) on its side. A gear (7) is rotatably installed between the inner walls of the protective ring (5). The gear (7) meshes with the gear ring (2). The cleaning assembly includes a brush plate (8) with bristles (9) on its lower surface.

2. The non-destructive testing equipment for petrochemical pipelines according to claim 1, characterized in that: The upper surface of the brush plate (8) is fixedly connected to the insert plate (10), and the upper surface of the mounting bracket (3) is provided with a slot (11) that matches the insert plate (10).

3. The non-destructive testing equipment for petrochemical pipelines according to claim 2, characterized in that: The mounting bracket (3) has a mounting box (12) fixedly mounted on its upper surface. A screw (13) is rotatably mounted between the inner walls of the mounting box (12). A screw sleeve (14) is threaded onto the surface of the screw (13). A clamping plate (15) is fixedly connected to the surface of the screw sleeve (14). Multiple locking rods (16) are fixedly connected to the surface of the clamping plate (15). Multiple slots (17) matching the locking rods (16) are opened on the surface of the insert plate (10).

4. The non-destructive testing equipment for petrochemical pipelines according to claim 3, characterized in that: A sliding rod (18) is fixedly connected between the inner walls of the mounting box (12), and a sliding sleeve (19) is fixedly connected to the surface of the sliding rod (18). The sliding sleeve (19) is fixedly connected to the clamping plate (15).

5. The non-destructive testing equipment for petrochemical pipelines according to claim 1, characterized in that: A drive motor (20) is fixedly connected to the surface of the protective ring (5), and the output end of the drive motor (20) extends into the interior of the protective ring (5) and is fixedly connected to the gear (7).

6. The non-destructive testing equipment for petrochemical pipelines according to claim 1, characterized in that: The inner wall of the connecting ring (1) is provided with a plurality of rollers (21).

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