A pulsed eddy current inspection scanner for in-service pipelines
By combining a flexible magnetic plate and adhesive tape, hand-held pulse eddy current testing of pipelines is achieved, improving the convenience and efficiency of testing and reducing workload.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI JINLI ENERGY TECH DEV
- Filing Date
- 2025-08-12
- Publication Date
- 2026-07-21
AI Technical Summary
Existing pipeline pulse eddy current inspection scanners require operators to hold the inspection components throughout the entire process, resulting in low inspection efficiency, high workload, and inconvenience.
The combination design of flexible magnetic plate, fixing strap, Velcro and adhesive tape allows the detector to be fixed to the outside of the pipe by magnetic attraction and adhesion, realizing hand-held detection.
It improves the convenience and efficiency of testing, reduces the workload of staff, and allows other operations to be performed simultaneously.
Smart Images

Figure CN224535894U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline pulse detection technology, specifically to an in-service pipeline pulse eddy current detection scanner. Background Technology
[0002] The in-service pipeline pulse eddy current detector uses pulsed current excitation instead of traditional sinusoidal current excitation to generate a pulsed magnetic field outside the conductor, inducing pulsed eddy currents inside the conductor. By detecting the decay process of this pulsed eddy current electromagnetic field, the degree of corrosion of the pipeline wall thickness can be assessed.
[0003] Existing patent document CN218067752U discloses an in-service pipeline pulse eddy current detector, including a pulse eddy current detection scanning box. The upper part of the box has a storage groove. Doors are attached to the front and rear sides of the upper part of the box, and the outer left and right parts of the doors are hinged to the upper front and rear left and right sides of the box, respectively. Handles are bolted to the inner side of the upper part of the doors. A storage groove is located on the lower right side of the box, and a pull-out box slides within this groove. A baffle is bolted to the right side of the pull-out box. This invention, with its handless mounting base, adjustment handle, pulse eddy current detector, and metal-shaped flexible hose, facilitates the handless detection of in-service pipelines.
[0004] Existing pipeline pulse eddy current inspection scanners assess the degree of wall corrosion by using coils to emit pulsed magnetic fields that act on the inside of the pipeline and detecting the attenuation process of the eddy current electromagnetic field. However, the inspection process requires operators to hold and adjust the position of the inspection component throughout the entire process, making it impossible to perform other operations simultaneously. This reliance on manual operation not only reduces inspection efficiency but also increases workload, affecting the overall convenience and practicality of the inspection. To address these issues, we propose an in-service pipeline pulse eddy current inspection scanner. Utility Model Content
[0005] (a) Technical problems to be solved
[0006] To address the shortcomings of existing technologies, this invention provides an in-service pipeline pulse eddy current detection scanner to solve the problems mentioned in the background section.
[0007] (II) Technical Solution
[0008] To achieve the above objectives, this utility model provides the following technical solution: an in-service pipeline pulse eddy current detector, comprising a detector body, a charging port and a connection port respectively provided on one side of the detector body, a connector electrically connected to the inner side of the connection port, a data cable electrically connected to one end of the connector, a detector electrically connected to one end of the data cable, a mounting bracket threadedly connected to the outer side of the detector, a flexible magnetic plate mounted on the bottom of the mounting bracket, a fixing strap bolted to one side of the flexible magnetic plate, a Velcro closure sewn to one side of the fixing strap, an adhesive tape bolted to the other side of the flexible magnetic plate, and a Velcro closure sewn to the other side of the adhesive tape.
[0009] Preferably, a protective sleeve is snapped onto the outer side of the scanner body, and a carrying handle is integrally formed on the top of the protective sleeve.
[0010] Preferably, a control panel is bolted to the front of the scanner body, and a display screen and operation buttons are respectively installed on the front of the control panel.
[0011] Preferably, a support groove is provided on the back of the scanner body, and a support frame is movably connected to the inner side of the support groove.
[0012] Preferably, a heat dissipation mesh is bolted to the upper part of the back of the scanner body away from the support groove, and the heat dissipation mesh has a mesh structure.
[0013] Preferably, the flexible magnetic plate is made of ferrite magnet material and has an arc-shaped structure.
[0014] (III) Beneficial Effects
[0015] This utility model provides an in-service pipeline pulse eddy current detection scanner, which has the following beneficial effects:
[0016] (1) This type of in-service pipeline pulse eddy current detector uses a flexible magnetic plate, a fixing strap, Velcro, adhesive tape, and Velcro. When using the in-service pipeline pulse eddy current detector, the operator places the flexible magnetic plate on the outside of the pipeline. The flexible magnetic plate can magnetically attract the pipeline using its own magnetism. At the same time, because the flexible magnetic plate itself is a flexible structure, it can firmly fit the pipeline according to its shape, so that the detector fits the pipeline. When the pipeline is not magnetic, the same method is used: place the flexible magnetic plate on the outside of the pipeline, then wrap the fixing strap and adhesive tape around the pipeline, and attach the Velcro to the Velcro, so that the detector fits the pipeline. Then, the operator starts the detector body by operating the button according to the detection requirements and sets it. At this time, the detector can detect the pipeline. This improves the convenience and practicality of the pipeline pulse eddy current detector. During the detection process, there is no need to hold the detection part by hand, and other detection work can be performed. This not only reduces the workload but also improves the detection efficiency. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a partial structural schematic diagram of the main body of the scanner of this utility model;
[0019] Figure 3 This is a partial structural schematic diagram of the flexible magnetic plate of this utility model;
[0020] Figure 4 This is a partial rear view of the main body of the scanner of this utility model.
[0021] In the diagram: 1. Scanner body; 2. Protective cover; 3. Handle; 4. Control panel; 5. Display screen; 6. Operation buttons; 7. Charging port; 8. Connection port; 9. Connector; 10. Data cable; 11. Detector; 12. Mounting bracket; 13. Flexible magnetic plate; 14. Fixing strap; 15. Velcro; 16. Adhesive tape; 17. Velcro; 18. Bracket slot; 19. Support frame; 20. Heat dissipation mesh. Detailed Implementation
[0022] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-4 This utility model provides a technical solution: an in-service pipeline pulse eddy current detector, including a detector body 1. A charging port 7 and a connection port 8 are respectively opened on one side of the detector body 1. A connector 9 is electrically connected to the inner side of the connection port 8. A data cable 10 is electrically connected to one end of the connector 9. A detector 11 is electrically connected to one end of the data cable 10. A mounting bracket 12 is threadedly connected to the outer side of the detector 11. A flexible magnetic plate 13 is installed at the bottom of the mounting bracket 12. A fixing strap 14 is bolted to one side of the flexible magnetic plate 13. A Velcro 15 is sewn to one side of the fixing strap 14. An adhesive tape 16 is bolted to the other side of the flexible magnetic plate 13. A Velcro 17 is sewn to the other side of the adhesive tape 16.
[0024] Furthermore, a protective sleeve 2 is snapped onto the outside of the scanner body 1, and a carrying handle 3 is integrally formed on the top of the protective sleeve 2. The protective sleeve 2 can protect the scanner body 1 and prevent it from being damaged by collision, and the carrying handle 3 makes it easy to carry the device.
[0025] Furthermore, a control panel 4 is bolted to the front of the scanner body 1. A display screen 5 and operation buttons 6 are respectively installed on the front of the control panel 4. The detection data can be displayed and operated through the display screen 5 and operation buttons 6 on the control panel 4.
[0026] Furthermore, a bracket groove 18 is provided on the back of the scanner body 1, and a support frame 19 is movably connected to the inner side of the bracket groove 18. By pulling the support frame 19 outward, the support frame 19 moves out of the bracket groove 18, thereby supporting the scanner body 1.
[0027] Furthermore, a heat dissipation mesh 20 is bolted to the upper part of the back of the scanner body 1 away from the bracket groove 18. The heat dissipation mesh 20 has a mesh structure and can dissipate heat, so that the heat generated by the scanner body 1 can be discharged through the heat dissipation mesh 20.
[0028] Furthermore, the flexible magnetic plate 13 is made of ferrite magnet material and has an arc-shaped structure. The flexible magnetic plate 13 can use magnetic force to hold the pipe and play a fixing role.
[0029] Working Principle: After installation, first check the installation, fixation, and safety protection of this utility model. When using the in-service pipeline pulse eddy current detector, the operator places the flexible magnetic plate 13 on the outside of the pipeline. The flexible magnetic plate 13 uses its own magnetism to magnetically attract the pipeline. At the same time, because the flexible magnetic plate 13 is a flexible structure, it can firmly fit the pipeline according to its shape, so that the detector 11 fits the pipeline. When the pipeline is not magnetic, the same method is used: place the flexible magnetic plate 13 on the outside of the pipeline, then wrap the fixing strap 14 and the adhesive strap 16 around the pipeline, and attach the Velcro 15 to the Velcro 17, so that the detector 11 fits the pipeline. Then, the operator starts the detector body 1 by operating button 6 according to the detection requirements and makes the settings. At this time, the detector 11 can detect the pipeline. This completes the use of this utility model. This utility model has a simple structure and is safe and convenient to use.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An in-service pipeline pulse eddy current detection scanner, comprising a scanner body (1), characterized in that: The scanner body (1) has a charging port (7) and a connection port (8) on one side. The inner side of the connection port (8) is electrically connected to a connector (9). One end of the connector (9) is electrically connected to a data cable (10). One end of the data cable (10) is electrically connected to a detector (11). The outer side of the detector (11) is threaded with a mounting bracket (12). A flexible magnetic plate (13) is installed at the bottom of the mounting bracket (12). A fixing strap (14) is bolted to one side of the flexible magnetic plate (13). A Velcro strip (15) is sewn to one side of the fixing strap (14). An adhesive strip (16) is bolted to the other side of the flexible magnetic plate (13). A Velcro strip (17) is sewn to the other side of the adhesive strip (16).
2. The in-service pipeline pulse eddy current detection scanner according to claim 1, characterized in that: The scanner body (1) is fitted with a protective sleeve (2) on the outside, and the top of the protective sleeve (2) is integrally formed with a carrying handle (3).
3. The in-service pipeline pulse eddy current detector according to claim 1, characterized in that: The front of the scanner body (1) is bolted to a control panel (4), and the front of the control panel (4) is equipped with a display screen (5) and operation buttons (6).
4. The in-service pipeline pulse eddy current detection scanner according to claim 1, characterized in that: The back of the scanner body (1) is provided with a bracket groove (18), and a support frame (19) is movably connected to the inner side of the bracket groove (18).
5. The in-service pipeline pulse eddy current detection scanner according to claim 1, characterized in that: A heat dissipation mesh (20) is bolted to the back of the scanner body (1) away from the support groove (18), and the heat dissipation mesh (20) has a mesh structure.
6. The in-service pipeline pulse eddy current detection scanner according to claim 1, characterized in that: The flexible magnetic plate (13) is made of ferrite magnet material and has an arc-shaped structure.