Automatic electromagnetic flaw detection device for pipes

Abstract

The utility model relates to the technical field of pipeline electromagnetic ultrasonic flaw detection, and discloses an automatic electromagnetic flaw detection device for pipes, which comprises a pair of flaw detection mechanisms, a first driving mechanism, a box body, a second driving mechanism and a battery, the flaw detection mechanism comprises a pair of electromagnetic ultrasonic probes; the first driving mechanism comprises an arc-shaped rack, a gear, a first motor and a first driving module; the second driving mechanism comprises two pairs of wheels and a magnet. By adopting the technical scheme of the utility model, the pipe damage detection efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of electromagnetic ultrasonic flaw detection technology for pipelines, specifically to an automated electromagnetic flaw detection device for pipes. Background Technology

[0002] Currently, fuels such as oil and natural gas are typically transported using pipes. When these pipes are damaged (e.g., deformed, defective, or corroded), the flammable and explosive properties of the fuels themselves can easily lead to safety accidents (e.g., oil or natural gas explosions). Therefore, regular flaw detection inspections of the pipes are necessary.

[0003] In existing technologies, EMAT (Electromagnetic Acoustic Transducer) flaw detection equipment is typically used to detect flaws in pipes, thereby determining the degree of damage (e.g., the location and extent of deformation). For example, the aforementioned EMAT equipment could be a pen-type electromagnetic ultrasonic high-temperature corrosion detector, model ETGmini-X1.

[0004] However, when using the aforementioned EMAT flaw detection equipment to inspect pipes, technicians need to hold the EMAT flaw detection equipment manually and inspect it along the axial and radial directions of the pipe, and the manual flaw detection process is time-consuming. In other words, the existing EMAT flaw detection equipment has low flaw detection efficiency.

[0005] Therefore, there is an urgent need for an automated electromagnetic flaw detection device for pipes, which can not only achieve automated flaw detection in both the axial and radial directions, but also significantly shorten the detection time. In other words, it greatly improves the efficiency of pipe flaw detection. Utility Model Content

[0006] To address the aforementioned technical problems, this utility model provides an automated electromagnetic flaw detection device for pipes. Firstly, a first driving mechanism drives a flaw detection mechanism (specifically, an electromagnetic ultrasonic probe) to rotate radially around the pipe, enabling the electromagnetic ultrasonic probe to measure the degree of damage at the location to be inspected. Secondly, a second driving mechanism drives the electromagnetic ultrasonic probe to move linearly along the axial direction of the pipe, allowing the electromagnetic ultrasonic probe to measure the degree of damage at the next location to be inspected. Using this solution, the overall damage of the pipe can be fully automated, and the inspection time can be significantly shortened, thereby greatly improving the efficiency of pipe damage detection.

[0007] This utility model provides an automated electromagnetic flaw detection device for pipes, characterized in that it includes: a pair of flaw detection mechanisms symmetrically arranged at both ends of the pipe along its axial direction; a first drive mechanism fixedly arranged above each flaw detection mechanism for driving the flaw detection mechanism to rotate around the radial direction of the pipe; a housing fixedly arranged between the first drive mechanisms; a second drive mechanism fixedly arranged inside the housing for driving the flaw detection mechanism to move linearly along the axial direction of the pipe; and a battery arranged inside the housing for supplying power to the first drive mechanism and the second drive mechanism.

[0008] The flaw detection mechanism includes a pair of electromagnetic ultrasonic probes symmetrically arranged along the axial direction of the pipe.

[0009] The first driving mechanism includes an arc-shaped rack fixedly disposed above the electromagnetic ultrasonic probe and connected to the electromagnetic ultrasonic probe, a gear disposed above the arc-shaped rack and meshing with the arc-shaped rack, a first motor fixedly disposed on the outer surface of the housing and fixedly connected to the gear for driving the gear to rotate, and a first driving module fixedly disposed inside the housing for driving the first motor to rotate.

[0010] The second driving mechanism includes two pairs of wheels fixedly disposed below the housing for driving the electromagnetic ultrasonic probe to move along the axial direction of the pipe, and a magnet disposed in a groove at the bottom of the housing for attracting the pipe.

[0011] The aforementioned automated electromagnetic flaw detection device for pipes is characterized in that it further includes a slide groove fixedly disposed on the outer surface of the housing for vertically moving the first motor, and a slider adapted to the slide groove is fixedly disposed on the outer surface of the first motor.

[0012] The aforementioned automated electromagnetic flaw detection device for pipes is characterized in that it further includes a telescopic slide fixedly disposed at one end of the arc-shaped rack for controlling the extension and retraction of the electromagnetic ultrasonic probe.

[0013] The beneficial effects are analyzed and reasoned as follows:

[0014] In existing technologies, when using EMAT (Effective Microanalysis) testing equipment to inspect pipes, technicians need to hold the EMAT equipment and perform inspections along the axial and radial directions of the pipe, and manual inspection takes a long time. In other words, the existing EMAT testing equipment has low inspection efficiency.

[0015] In the technical solution provided by this utility model, the first driving mechanism enables the electromagnetic ultrasonic probe to rotate radially around the pipe, achieving circumferential flaw detection at a certain location on the pipe. The second driving mechanism enables the electromagnetic ultrasonic probe to move axially along the pipe, achieving circumferential flaw detection at the next location on the pipe.

[0016] It is precisely because of the establishment of the first and second drive mechanisms that the electromagnetic ultrasonic probe can perform automated and comprehensive flaw detection on the pipe.

[0017] This avoids the problems of manual flaw detection and long detection time in existing technologies.

[0018] Therefore, by adopting the technical solution of this utility model, the efficiency of flaw detection of pipes can be greatly improved. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of an automated electromagnetic flaw detection device for pipes provided by this utility model;

[0020] Figure label:

[0021] 1. Housing; 2. Electromagnetic ultrasonic probe; 3. Arc-shaped rack;

[0022] 4. Gear; 5. First motor; 6. Wheel; 7. Telescopic slide. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0024] It should be noted that, where there is no conflict, the features of the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the embodiments and accompanying drawings.

[0025] In existing technologies, when using EMAT (Effective Microanalysis) testing equipment to inspect pipes, technicians need to hold the EMAT equipment and perform inspections along the axial and radial directions of the pipe, and manual inspection is time-consuming. In other words, the existing EMAT testing equipment has low inspection efficiency.

[0026] Based on this, the present invention provides an automated electromagnetic flaw detection device for pipes. Firstly, a first driving mechanism drives the flaw detection mechanism (specifically, an electromagnetic ultrasonic probe) to rotate radially around the pipe, enabling the electromagnetic ultrasonic probe to measure the degree of damage at the location to be inspected. Secondly, a second driving mechanism drives the electromagnetic ultrasonic probe to move linearly along the axial direction of the pipe, enabling the electromagnetic ultrasonic probe to measure the degree of damage at the next location to be inspected. Using the above solution, the overall damage of the pipe can be fully automated, and the inspection time can be greatly shortened, thereby significantly improving the efficiency of pipe damage detection.

[0027] Figure 1 This is a structural schematic diagram of an automated electromagnetic flaw detection device for pipes provided by this utility model.

[0028] See Figure 1 The present invention provides an automated electromagnetic flaw detection device for pipes, comprising: a pair of flaw detection mechanisms symmetrically arranged at both ends of the pipe axial direction, a first drive mechanism fixedly arranged above each flaw detection mechanism for driving the flaw detection mechanism to rotate around the pipe radial direction, a housing 1 fixedly arranged between the first drive mechanisms, a second drive mechanism fixedly arranged inside the housing 1 for driving the flaw detection mechanism to move linearly along the pipe axial direction, and a battery arranged inside the housing 1 for supplying power to the first drive mechanism and the second drive mechanism.

[0029] The flaw detection mechanism includes a pair of electromagnetic ultrasonic probes 2 symmetrically arranged along the pipe axis;

[0030] The first drive mechanism includes an arc-shaped rack 3 fixedly disposed above the electromagnetic ultrasonic probe 2 and connected to the electromagnetic ultrasonic probe 2, a gear 4 disposed above the arc-shaped rack 3 and meshing with the arc-shaped rack 3, a first motor 5 fixedly disposed on the outer surface of the housing 1 and fixedly connected to the gear 4 for driving the gear 4 to rotate, and a first drive module fixedly disposed inside the housing 1 for driving the first motor 5 to rotate.

[0031] The second drive mechanism includes two pairs of wheels 6 fixedly installed below the housing 1 for driving the electromagnetic ultrasonic probe 2 to move along the axial direction of the pipe, and magnets installed in the groove at the bottom of the housing 1 for adsorbing the pipe.

[0032] Among them, the flaw detection agency is used to detect damage to the pipe material. For example, damage such as corrosion, wear, deformation, and leaks in the welds.

[0033] The first drive mechanism can drive the flaw detection mechanism to rotate around the pipe to detect circumferential damage to the pipe.

[0034] The first motor 5 can be a front disc motor and a rear disc motor located at the left and right ends of the housing 1, used to measure the position of the electromagnetic ultrasonic probe 2 on the pipe.

[0035] It is understandable that the radial direction of the pipe is the direction around the outer circumference of the pipe, and the axial direction of the pipe is the direction along the length of the pipe.

[0036] The second drive mechanism can drive the flaw detection mechanism to move along the pipe axis to detect the damage around the pipe at different positions along the pipe axis.

[0037] Understandably, the magnet allows the housing 1 to be firmly attached to the outer surface of the pipe during axial movement.

[0038] For example, wheel 6 can be a YD Double A J200-11-8A model wheel.

[0039] In specific implementation, when performing circumferential flaw detection on the first position of the pipe in the axial direction, the first drive module first drives the first motor 5 to work, the first motor 5 drives the gear 4 to rotate, the gear 4 drives the arc rack 3 to rotate, and then drives the electromagnetic ultrasonic probe 2, which is fixedly set below the arc rack 3, to rotate around the pipe radially, so that the electromagnetic ultrasonic probe 2 can achieve circumferential flaw detection on the pipe.

[0040] When performing axial flaw detection at the second axial position of the pipe (i.e., the position after the first position), the electromagnetic ultrasonic probe 2 needs to be moved to the second position. The moving process includes the following steps: First, the second drive mechanism drives the wheel 6 to move. After moving to the second position, the first drive module can be used to perform circumferential flaw detection on the pipe.

[0041] The beneficial effects are analyzed and reasoned as follows:

[0042] In existing technologies, when using EMAT (Effective Microanalysis) testing equipment to inspect pipes, technicians need to hold the EMAT equipment and perform inspections along the axial and radial directions of the pipe, and manual inspection takes a long time. In other words, the existing EMAT testing equipment has low inspection efficiency.

[0043] In the technical solution provided by this utility model, the first driving mechanism enables the electromagnetic ultrasonic probe 2 to rotate radially around the pipe, thereby achieving circumferential flaw detection at a certain location on the pipe. The second driving mechanism enables the electromagnetic ultrasonic probe 2 to move axially along the pipe, thereby achieving circumferential flaw detection at the next location on the pipe.

[0044] It is precisely because of the establishment of the first and second drive mechanisms that the electromagnetic ultrasonic probe 2 can perform automated and comprehensive flaw detection on the pipe.

[0045] This avoids the problems of manual flaw detection and long detection time in existing technologies.

[0046] Therefore, by adopting the technical solution of this utility model, the efficiency of flaw detection of pipes can be greatly improved.

[0047] In the embodiments described above, an automated electromagnetic flaw detection device for pipes was introduced. In another embodiment of this utility model, a component that enables the electromagnetic ultrasonic probe 2 to perform flaw detection on the pipe at the location to be inspected is introduced.

[0048] For example, it also includes a slide groove for vertically moving the first motor 5, which is fixedly installed on the outer surface of the housing 1, and a slider adapted to the slide groove is fixedly installed on the outer surface of the first motor 5.

[0049] The slider on the outer surface of the first motor 5 can slide up and down in the groove on the outer surface of the housing 1, so that the electromagnetic ultrasonic probe 2 can perform flaw detection on the pipe to be tested.

[0050] It should be noted that the slider and the slide are connected by a snap-fit ​​mechanism. After the slider finishes sliding, it can remain relatively stationary with respect to the slide, meaning it will not slide down.

[0051] The embodiments described above introduce components that enable the electromagnetic ultrasonic probe 2 to perform flaw detection on the pipe at the location to be inspected. In another embodiment of this invention, components are introduced that allow the electromagnetic ultrasonic probe 2 to fit tightly against the pipe for flaw detection.

[0052] For example, it also includes a telescopic slide 7 fixedly mounted at one end of the arc-shaped rack 3 for controlling the extension and retraction of the electromagnetic ultrasonic probe 2.

[0053] The telescopic slide 11 can drive the electromagnetic ultrasonic probe 2 to telescopically move until the electromagnetic ultrasonic probe 2 can be tightly attached to the outer wall of the pipe, so that the electromagnetic ultrasonic probe 2 can accurately detect flaws in the pipe.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An automatic electromagnetic testing device for pipes, characterized by: The utility model relates to a kind of electromagnetic ultrasonic testing device for pipe, including: A pair of flaw detection mechanisms are symmetrically arranged at the axial ends of the pipe, a first driving mechanism is fixedly arranged above each of the flaw detection mechanisms for driving the flaw detection mechanisms to rotate around the radial direction of the pipe, a box (1) is fixedly arranged between the first driving mechanisms, a second driving mechanism is fixedly arranged inside the box (1) for driving the flaw detection mechanisms to move linearly along the axial direction of the pipe, and a battery is arranged inside the box (1) for powering the first driving mechanism and the second driving mechanism; The flaw detection mechanism includes a pair of electromagnetic ultrasonic probes (2) symmetrically arranged along the axial direction of the pipe; The first driving mechanism includes an arc-shaped rack (3) fixedly arranged above the electromagnetic ultrasonic probe (2) and connected to the electromagnetic ultrasonic probe (2), a gear (4) arranged above the arc-shaped rack (3) and engaged with the arc-shaped rack (3), a first motor (5) fixedly connected to the gear (4) and arranged on the outer surface of the box (1) for driving the gear (4) to rotate, and a first driving module fixedly arranged inside the box (1) for driving the first motor (5) to rotate; The second driving mechanism includes two pairs of wheels (6) fixedly arranged below the box (1) for moving the electromagnetic ultrasonic probe (2) along the axial direction of the pipe, and a magnet arranged in the groove at the bottom of the box (1) for attracting the pipe.

2. The automatic electromagnetic tube inspection apparatus according to claim 1, wherein: A sliding groove is also fixedly arranged on the outer surface of the box (1) for vertically moving the first motor (5), and a sliding block is fixedly arranged on the outer surface of the first motor (5) and adapted to the sliding groove.

3. The automatic electromagnetic tube inspection apparatus according to claim 1, wherein: A telescopic sliding table (7) is also fixedly arranged at one end of the arc-shaped rack (3) for controlling the extension and retraction of the electromagnetic ultrasonic probe (2).

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