Electromagnetic detection device in pipeline

Abstract

The utility model discloses an electromagnetic detection device in a pipeline, which comprises a shell, a mounting flange is fixedly mounted on the outer side of one end of the shell, a mounting plate is movably mounted on one side of the mounting flange, and a weak current bunched cable is movably sleeved in the mounting plate. An automatic weak current cable winding device is movably mounted at one end in the shell, eight first elastic telescopic columns are fixedly mounted on the outer sides of the two ends of the shell, and first mounting frames are fixedly mounted at the ends, away from the shell, of the eight first elastic telescopic columns; when the shell enters the pipeline for detection, the weak-current cable automatic winding device slowly releases the weak-current bunched cable, an operator controls the control box through the weak-current bunched cable, instruction issuing is facilitated, electromagnetic interference in the pipeline is reduced, the detected signal trueness is improved, the device can be used in a severe environment, signal distortion is reduced, and the detection accuracy is improved. And the stability of signal transmission is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of in-pipe detection, in particular to an electromagnetic detection device for pipelines. Background Technique

[0002] In-pipe electromagnetic detection is an important non-destructive testing technology for evaluating the internal condition of pipelines. Its working principle mainly utilizes the electromagnetic induction phenomenon. By sending an electromagnetic field into the pipeline and detecting the changes in the electromagnetic field, relevant information of the pipeline can be obtained. This detection technology has many advantages: high accuracy: it can accurately detect problems such as internal defects, corrosion, and metal loss of the pipeline. Comprehensive detection: it can scan the inner wall of the pipeline in all directions, reducing detection blind spots. Strong real-time performance: data can be obtained in real time during the detection process, facilitating the timely discovery of problems. In the petrochemical industry, in-pipe electromagnetic detection can promptly detect metal loss caused by corrosion in the transportation pipeline, avoiding oil leakage accidents; in the urban gas pipeline system, it can detect potential defects in the welds, ensuring the safety of residents' gas use.

[0003] During the use of pipelines, it is necessary to detect the pipelines to ensure the safety of the transported medium. Usually, electromagnetic ultrasonic detection technology is required. However, the existing pipeline detection devices usually cannot handle the internal detection of pipelines with different sizes, and it is also relatively inconvenient to move inside pipelines with liquid accumulation. Moreover, when detecting inside the pipeline through wireless transmission, signal distortion will occur due to the interference of the anti-corrosion coating or lining on the pipeline wall, resulting in certain inconveniences. Based on this, an electromagnetic detection device for pipelines is proposed. Content of the Utility Model

[0004] The purpose of the utility model is to provide an electromagnetic detection device for pipelines to solve the problems raised in the above background technique.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an electromagnetic detection device in a pipeline, comprising a shell, a mounting flange is fixedly installed on the outer side of one end of the shell, a mounting plate is movably installed on one side of the mounting flange, a weak-current bundled cable is movably sleeved inside the mounting plate, a weak-current cable automatic winding device is movably installed on one end inside the shell, eight first elastic telescopic columns are fixedly installed on the outer sides of both ends of the shell, a mounting frame 1 is fixedly installed on the end of the eight first elastic telescopic columns away from the shell, a driven wheel is movably installed on the inner side of the mounting frame 1, two second elastic telescopic columns are fixedly installed on the top and bottom of the shell, a mounting frame 2 is fixedly installed on the top ends of the two second elastic telescopic columns, a brushless power wheel is installed through the opposite side of the mounting frame 2, a mounting bracket is fixedly installed on the middle part of the shell, and the middle part of the mounting bracket is fixedly installed A battery assembly is provided, and a pillar is installed through the end of the shell away from the mounting plate through a bearing, a first electric telescopic rod is fixedly installed on the outside of the pillar, a first detection head is fixedly installed on the output end of the first electric telescopic rod, a second electric telescopic rod is fixedly installed on the end of the pillar away from the shell, a mounting head is fixedly installed on the output end of the second electric telescopic rod, four second detection heads are fixedly installed on the outside of the mounting head, two fixing frames are fixedly installed on the outside of the output end of the second electric telescopic rod, an infrared detection camera is fixedly installed on the top of one of the two fixing frames, and a lighting lamp is fixedly installed on the bottom end of the other of the two fixing frames, a gear plate is fixedly installed on the end of the pillar away from the second electric telescopic rod, a driving gear is meshed on the outside of the second detection head, a reduction motor is transmission-connected to one side of the driving gear, and a control box is fixedly installed inside the shell.

[0006] Preferably, the mounting plate is fixed to one side of the mounting flange by bolts passing through it, and one end of the weak-current bundled cable located inside the shell is movably wound around the outside of the weak-current cable automatic winding device.

[0007] Preferably, the shell is a regular octahedron structure, and the eight first elastic telescopic columns are evenly distributed on the outer side of the shell in a circumferential manner.

[0008] Preferably, the second elastic telescopic column is located at the center of the top and bottom of the shell, and both ends of the brushless power wheel are movably inserted through the second mounting frame and are fixed to the opposite sides of the second mounting frame by nuts.

[0009] Preferably, the reduction motor is fixedly mounted on the inner wall of the shell, and the mounting bracket and the battery assembly are located at the center of the shell.

[0010] Preferably, the control box includes a single-chip microcomputer module, an image processing module, a detection and processing module, a motor controller module, a wireless signal transceiver module, and an information storage module. The wiring terminal of the control box is electrically connected to one end of the weak current bundled cable through a wire.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: When the device is in use, the user places the housing inside the pipeline to be inspected, then positions the driven wheel on the inner side of the pipeline wall and compresses the first elastic telescopic column, so that the driven wheel closely adheres to the pipeline wall. At the same time, the brushless power wheel contacts the pipeline wall, and the brushless power wheel closely adheres to the pipeline wall under the elastic support of the second elastic telescopic column and the mounting bracket II. Then the brushless power wheel starts to rotate, prompting the housing to move. At the same time, the reduction motor rotates to drive the driving gear to rotate forward and reverse regularly, driving the gear disc to rotate to prompt the support column to rotate, and detecting the inner wall of the pipeline through the first detection head and the second detection head. By adjusting the lengths of the first electric telescopic rod and the second electric telescopic rod, the first detection head and the second detection head are prompted to adjust the detection position for detection, which is convenient for dealing with different detections, increases the function of omnidirectional detection, reduces the detection blind area, and can adapt to pipelines of different sizes, facilitating detection. The symmetry of the brushless power wheel and the overhead setting of the housing enable it to move and detect in pipelines with liquid accumulation;

[0012] When the housing enters the pipeline for inspection, the weak current cable automatic rewinding device slowly releases the weak current bundled cable. The operator controls the control box through the weak current bundled cable, which is convenient for issuing instructions, reduces the electromagnetic interference inside the pipeline, increases the signal authenticity of the detection, can be used in harsh environments, reduces signal distortion, and increases the stability of signal transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a front view three-dimensional external structure schematic diagram of the present utility model.

[0014] Figure 2 It is a rear view three-dimensional external structure schematic diagram of the present utility model.

[0015] Figure 3 It is a front view sectional structure schematic diagram of the present utility model.

[0016] Figure 4 It is a schematic diagram of the internal structure of the control box of the present utility model.

[0017] In the figure: 1. housing; 2. first elastic telescopic column; 3. first mounting bracket; 4. driven wheel; 5. second elastic telescopic column; 6. second mounting bracket; 7. brushless power wheel; 8. mounting flange; 9. mounting plate; 10. weak current bundled cable; 11. support column; 12. first electric telescopic rod; 13. first detection head; 14. second electric telescopic rod; 15. mounting head; 16. second detection head; 17. fixing bracket; 18. illuminating lamp; 19. infrared detection camera; 20. battery assembly; 21. automatic rewinding device for weak current cable; 22. mounting bracket; 23. control box; 24. reduction motor; 25. driving gear; 26. gear disc. Detailed implementation manners

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-4The utility model provides a technical solution: an electromagnetic detection device in a pipeline, comprising a shell 1, a mounting flange 8 is fixedly installed on the outer side of one end of the shell 1, a mounting plate 9 is movably installed on one side of the mounting flange 8, a weak current bundled cable 10 is movably sleeved inside the mounting plate 9, a weak current cable automatic winding device 21 is movably installed at one end inside the shell 1, eight first elastic telescopic columns 2 are fixedly installed on the outer sides of both ends of the shell 1, a mounting frame 3 is fixedly installed on the end of the eight first elastic telescopic columns 2 away from the shell 1, a driven wheel 4 is movably installed on the inner side of the mounting frame 3, two second elastic telescopic columns 5 are fixedly installed on the top and bottom of the shell 1, a mounting frame 2 6 is fixedly installed on the top of the two second elastic telescopic columns 5, a brushless power wheel 7 is installed through the opposite side of the mounting frame 6, a mounting bracket 22 is fixedly installed on the middle part of the shell 1, a battery assembly 20 is fixedly installed on the middle part of the mounting bracket 22, and the shell 1 is away from the mounting One end of the plate 9 is movably penetrated by a support 11, a first electric telescopic rod 12 is fixedly installed on the outside of the support 11, a first detection head 13 is fixedly installed on the output end of the first electric telescopic rod 12, a second electric telescopic rod 14 is fixedly installed on the end of the support 11 away from the shell 1, a mounting head 15 is fixedly installed on the output end of the second electric telescopic rod 14, four second detection heads 16 are fixedly installed on the outside of the mounting head 15, two fixing frames 17 are fixedly installed on the outside of the output end of the second electric telescopic rod 14, an infrared detection camera 19 is fixedly installed on the top of one of the two fixing frames 17, and a lighting lamp 18 is fixedly installed on the bottom of the other of the two fixing frames 17, a gear plate 26 is fixedly installed on the end of the support 11 away from the second electric telescopic rod 14, a driving gear 25 is meshed on the outside of the second detection head 16, a reduction motor 24 is transmission-connected to one side of the driving gear 25, and a control box 23 is fixedly installed inside the shell 1.

[0020] Working principle of the above technical solution: During use, the operator places the housing 1 inside the pipeline on the side where inspection is required. Then, the driven wheel 4 is located inside the pipeline wall, and the first elastic telescopic column 2 is compressed, causing the driven wheel 4 to closely fit the pipeline wall. At the same time, the brushless power wheel 7 contacts the pipeline wall. The brushless power wheel 7 is closely attached to the pipeline wall under the elastic support of the second elastic telescopic column 5 and the mounting bracket two 6. Then, the brushless power wheel 7 starts to rotate, promoting the movement of the housing 1. At the same time, the reduction motor 24 rotates to drive the driving gear 25 to rotate regularly forward and reverse, driving the gear disc 26 to rotate, promoting the rotation of the support column 11, and detecting the inner wall of the pipeline through the first detection head 13 and the second detection head 16. By adjusting the lengths of the first electric telescopic rod 12 and the second electric telescopic rod 14, the first detection head 13 and the second detection head 16 are prompted to adjust the detection position for detection, facilitating the response to different detections, increasing the function of all-round detection, reducing the detection blind area, and being able to adapt to pipelines of different sizes, facilitating detection. The symmetry of the brushless power wheel 7 and the overhead setting of the housing 1 enable it to move and detect inside pipelines with liquid accumulation.

[0021] In another embodiment, as Figures 1-3 shown, the mounting plate 9 is fixedly installed on one side of the mounting flange 8 through bolts, and one end of the weak current bundled cable 10 located inside the housing 1 is movably wound around the outside of the weak current cable automatic rewinding device 21.

[0022] The settings of the mounting plate 9 and the mounting flange 8 facilitate the removal of the mounting plate 9 for maintaining the internal structure of the housing 1. Through the provided weak current bundled cable 10 and the weak current cable automatic rewinding device 21, when the housing 1 enters the pipeline for detection, the weak current cable automatic rewinding device 21 slowly releases the weak current bundled cable 10, and the operator controls the control box 23 through the weak current bundled cable 10, facilitating the issuance of instructions, reducing the electromagnetic interference inside the pipeline, increasing the signal authenticity of detection, being able to be used in harsh environments, reducing signal distortion, and increasing the stability of signal transmission.

[0023] In another embodiment, as Figures 1-3 shown, the housing 1 is in the shape of a regular octahedron, and the eight first elastic telescopic columns 2 are evenly distributed in a circular pattern on the outside of the housing 1.

[0024] The regular octahedron structure of the housing 1 facilitates the installation and support of the eight first elastic telescopic columns 2 at eight angles, maintaining the structural stability. Through the elastic action of the first elastic telescopic column 2, the housing 1 is kept at the center of the pipeline, facilitating the maintenance of structural stability and increasing the structural stability.

[0025] In another embodiment, as Figures 1-3As shown in the figure, the second elastic telescopic column 5 is located at the centers of the top and bottom of the housing 1. Both ends of the brushless power wheel 7 movably penetrate through the second mounting bracket 6 and are fixed on the opposite sides of the second mounting bracket 6 by nuts.

[0026] The second elastic telescopic column 5 provides elastic support for the second mounting bracket 6 and the brushless power wheel 7, and the second elastic telescopic column 5 is located in the middle part of the first elastic telescopic column 2, which is convenient for maintaining the position of the housing 1 by the elasticity of the first elastic telescopic column 2, making the structural force of the second elastic telescopic column 5 and the brushless power wheel 7 stable and maintaining a stable position. The brushless power wheel 7 is the power wheel of a brushless motor, similar to the rear wheel of an electric vehicle, which is convenient for installation and movement.

[0027] In another embodiment, as Figures 1-3 shown, the reduction motor 24 is fixedly installed on the inner wall of the housing 1, and the mounting bracket 22 and the battery assembly 20 are located at the center of the housing 1.

[0028] After the reduction motor 24 is fixed, it drives the driving gear 25 to rotate, which is convenient for movement and increases the stability of the structure. The mounting bracket 22 and the battery assembly 20 are at the center of the housing 1, which is convenient for stabilizing the torque and plays a role of central counterweight, facilitating the maintenance of torque stability.

[0029] In another embodiment, as Figure 3 and Figure 4 shown, the control box 23 includes a single-chip microcomputer module, an image processing module, a detection and processing module, a motor controller module, a wireless signal transceiver module and an information storage module. The wiring terminal of the control box 23 is electrically connected to one end of the weak current bundled cable 10 through a wire.

[0030] The input end of the single-chip microcomputer module is electrically connected to the output ends of the image processing module, the detection and processing module, the wireless signal transceiver module and the information storage module through wires. The output end of the single-chip microcomputer module is electrically connected to the input ends of the motor controller module, the wireless signal transceiver module and the information storage module through wires. The input end of the image processing module is electrically connected to the output end of the infrared detection camera 19 through a wire. The input end of the detection and processing module is electrically connected to the output ends of the first detection head 13 and the second detection head 16 through wires. The output end of the motor controller module is electrically connected to the input ends of the brushless power wheel 7, the weak wire cable automatic rewinding device 21 and the reduction motor 24 through wires. The control end of the single-chip microcomputer module is electrically connected to the input ends of the first electric telescopic rod 12, the second electric telescopic rod 14 and the lighting lamp 18 through wires. The output end of the battery assembly 20 is electrically connected to the input end of the control box 23 to supply power to the internal electrical components. The power transmission cable inside the weak current bundled cable 10 is electrically connected to the input end of the battery assembly 20. The signal cable and the control cable inside the weak current bundled cable 10 are respectively electrically connected to the signal output end and the signal receiving end of the single-chip microcomputer module.

[0031] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An electromagnetic detection device in a pipeline, comprising a housing (1), characterized in that: A mounting flange (8) is fixedly mounted on the outer side of one end of the shell (1), a mounting plate (9) is movably mounted on one side of the mounting flange (8), a weak current bundled cable (10) is movably sleeved inside the mounting plate (9), a weak current cable automatic reeling device (21) is movably mounted on one end of the shell (1), eight first elastic telescopic columns (2) are fixedly mounted on the outer side of both ends of the shell (1), a mounting frame (3) is fixedly mounted on one end of the eight first elastic telescopic columns (2) away from the shell (1), and the mounting frame (3) is A driven wheel (4) is movably mounted on the inner side, two second elastic telescopic columns (5) are fixedly mounted on the top and bottom of the shell (1), a second mounting frame (6) is fixedly mounted on the top of the two second elastic telescopic columns (5), a brushless power wheel (7) is installed through the opposite side of the second mounting frame (6), a mounting bracket (22) is fixedly mounted in the middle part of the shell (1), a battery assembly (20) is fixedly mounted in the middle part of the mounting bracket (22), and an end of the shell (1) away from the mounting plate (9) is movably installed through the bearing A support (11) is provided, a first electric telescopic rod (12) is fixedly mounted on the outer side of the support (11), a first detection head (13) is fixedly mounted on the output end of the first electric telescopic rod (12), a second electric telescopic rod (14) is fixedly mounted on one end of the support (11) away from the housing (1), a mounting head (15) is fixedly mounted on the output end of the second electric telescopic rod (14), four second detection heads (16) are fixedly mounted on the outer side of the mounting head (15), and two second detection heads (16) are fixedly mounted on the outer side of the output end of the second electric telescopic rod (14). A fixing frame (17) is provided, an infrared detection camera (19) is fixedly mounted on the top of one of the two fixing frames (17), an illumination lamp (18) is fixedly mounted on the bottom of the other of the two fixing frames (17), a gear plate (26) is fixedly mounted on one end of the support (11) away from the second electric telescopic rod (14), a driving gear (25) is meshed on the outer side of the second detection head (16), a reduction motor (24) is transmission-connected to one side of the driving gear (25), and a control box (23) is fixedly mounted inside the housing (1).

2. The electromagnetic detection device in a pipeline according to claim 1, characterized in that: The mounting plate (9) is fixed to one side of the mounting flange (8) by means of bolts passing through it, and one end of the weak-current bundled cable (10) located inside the housing (1) is movably wound around the outside of the weak-current cable automatic winding device (21).

3. The electromagnetic detection device in a pipeline according to claim 1, characterized in that: The shell (1) is a regular octahedron structure, and the eight first elastic telescopic columns (2) are evenly distributed on the outer side of the shell (1) in a circumferential manner.

4. The electromagnetic detection device in a pipeline according to claim 1, characterized in that: The second elastic telescopic column (5) is located at the center of the top and bottom of the shell (1), and both ends of the brushless power wheel (7) are movably inserted through the second mounting frame (6) and are fixed to the opposite sides of the second mounting frame (6) by nuts.

5. The electromagnetic detection device in a pipeline according to claim 1, characterized in that: The reduction motor (24) is fixedly mounted on the inner wall of the housing (1), and the mounting bracket (22) and the battery assembly (20) are located at the center of the housing (1).

6. The electromagnetic detection device in a pipeline according to claim 1, characterized in that: The control box (23) comprises a single chip computer module, an image processing module, a detection processing module, a motor controller module, a wireless signal transceiver module and an information storage module. The connection terminal of the control box (23) is electrically connected to one end of the weak current bundled cable (10) via a wire.

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