Large-scale steel pipeline nondestructive testing equipment

Abstract

The invention relates to the technical field of pipeline detection, and particularly discloses large steel pipeline nondestructive testing equipment which comprises a horizontally-arranged supporting bottom plate, moving rollers are rotatably mounted on the side face of the supporting bottom plate, and a connecting wire is connected to the upper surface of the rear end of the supporting bottom plate. A battery module is fixedly mounted in the middle of the upper surface of the supporting bottom plate, a mounting seat is rotatably mounted on the upper surface of the battery module, a high-definition camera is rotatably mounted above the mounting seat, and ultrasonic flaw detectors are rotatably mounted on the left side and the right side of the supporting bottom plate. According to the nondestructive testing equipment for the large steel pipeline, novel structural design is adopted, the device moves in the pipeline through rotation of the moving rollers, at the moment, the high-definition camera and the ultrasonic flaw detector are used for detecting the interior of the pipeline, and the high-definition camera shoots images to judge obvious damage in the pipeline; meanwhile, the ultrasonic flaw detector sends out ultrasonic waves to detect the internal dark damage and small damage of the pipeline.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline detection, in particular to a nondestructive detection device for large steel pipes. Background Art

[0002] Pipeline inspection equipment is a device used to detect whether there is damage or deformation inside the pipeline, so as to make timely repairs and adjustments. It is widely used in urban drainage systems or gas transmission systems. The drainage system and gas transmission system need to be connected with steel pipes, so regular inspection of steel pipes is very necessary.

[0003] In the prior art, a Chinese patent with the announcement number CN108032924A discloses a pipeline inspection trolley, which solves the problem that when the pipeline inspection trolley is traveling in a water supply and drainage pipeline with debris, the debris is likely to hit the lower end of the pipeline inspection trolley, causing the pipeline inspection trolley to be unable to continue traveling. The key points of its technical solution are a pipeline inspection trolley, including a crawler and a camera assembly installed on the crawler, the crawler including a frame and a plurality of sets of wheels arranged on the frame, each set of the wheels including two wheels symmetrically arranged on both sides of the frame, and the frame is also provided with a left drive motor for controlling the synchronous rotation of the left wheel of the frame and a right drive motor for controlling the synchronous rotation of the right wheel of the frame. When the pipeline inspection trolley is traveling in a water supply and drainage pipeline with debris, it is not easy for the debris to hit the lower end of the pipeline inspection trolley, causing the pipeline inspection trolley to be unable to travel.

[0004] The above-mentioned device uses a trolley to move inside the pipeline and cooperates with a camera to achieve the purpose of detecting damage. However, in actual use, due to the complex situation inside the pipeline, if only the camera image is used for detection, the detection may not be in place. For example, internal injuries or minor damages on the side wall of the pipeline are difficult for the camera to detect.

[0005] In the prior art, a Chinese patent with announcement number CN102506737A discloses a pipeline detection device, including: a walking mechanism, a controller and a sensing device; the sensing device is installed on the walking mechanism, and is used to obtain three-dimensional data of the inner wall of the pipeline and the attitude angle of the walking mechanism in the pipeline, and transmit it to the controller, the controller controls the walking mechanism to walk in the pipeline, and receives and processes the three-dimensional data of the inner wall of the pipeline and the attitude angle of the walking mechanism in the pipeline, obtains the deformation rate of the pipeline, and uses the walking mechanism to enter the pipeline and walk in the pipeline. The walking mechanism can enter any pipeline, and the sensing device processes the controller according to the three-dimensional data of the inner wall of the pipeline and the attitude angle of the walking mechanism, and accurately obtains the deformation rate of the pipeline, so as to conveniently and accurately detect the deformation rate of the pipeline without the need for personnel to enter the pipeline, which greatly improves work efficiency and saves a lot of human resources and funds.

[0006] The above-mentioned device also uses a trolley to move inside the pipeline to achieve the purpose of detection. However, in actual use, when the trolley detects an abnormality inside the pipeline, it cannot mark it in time, so the staff can only obtain the existence of the problem but cannot quickly find the problem location, thereby increasing the workload of the staff. Summary of the invention

[0007] The purpose of the present invention is to provide a large-scale steel pipe non-destructive testing device to solve the problem in the above background technology that only using a camera for detection has poor effect and cannot mark in time.

[0008] To achieve the above object, the present invention provides the following technical solution: a large steel pipe nondestructive testing device, comprising a horizontally arranged support base plate, a movable roller is rotatably mounted on the side of the support base plate, and a connecting wire is connected to the upper surface of the rear end of the support base plate, and further comprising: A battery module is fixedly mounted in the middle of the upper surface of the support base plate, and a mounting seat is rotatably mounted on the upper surface of the battery module, and a high-definition camera is rotatably mounted above the mounting seat; Ultrasonic flaw detectors are rotatably mounted on the left and right sides of the support base plate. The ultrasonic flaw detectors emit ultrasonic signals to detect flaws inside the pipeline, and a reciprocating mechanism for expanding the range of the ultrasonic flaw detector is arranged inside the support base plate; A storage box and a pressure pump are fixedly mounted on the upper surface of the front end of the support base plate, the storage box stores paint materials for marking, a nozzle is installed above the pressure pump, and the storage box and the pressure pump are connected to each other through a delivery pipe, and a stirring mechanism for preventing paint from solidifying is arranged inside the storage box; Storage air bags are installed on the upper surfaces of the left and right sides of the supporting bottom plate, and a cleaning nozzle for cleaning the ultrasonic flaw detector is fixedly installed above the storage air bags.

[0009] Preferably, the reciprocating mechanism includes a transmission gear coaxially fixedly installed with the ultrasonic flaw detector and a movable rack meshingly connected above the transmission gear, and a sliding structure is formed between the movable rack and a limiting sliding groove provided inside the supporting bottom plate.

[0010] Preferably, a connecting rod is rotatably mounted on the rear end side of the movable rack, and the connecting rod is rotatably connected to the movable slider.

[0011] Preferably, the movable slider is threadedly connected to a reciprocating screw rotatably mounted inside the supporting base plate, and the reciprocating screw is driven to rotate by a driving motor.

[0012] Preferably, the stirring mechanism comprises a stirring rod rotatably mounted inside the storage box, and a driven bevel gear is coaxially fixedly mounted on the bottom end of the stirring rod.

[0013] Preferably, the side surface of the driven bevel gear is meshingly connected with a driving bevel gear that drives the driven bevel gear to rotate, and the driving bevel gear and the reciprocating screw are coaxially fixedly installed.

[0014] Preferably, the movable roller is rotatably mounted on the side of the connecting block, and the connecting block is rotatably connected to the supporting base plate, and a pulling plate with a bent structure is rotatably mounted on the upper surface of the connecting block.

[0015] Preferably, the pulling plate is rotationally connected to the telescopic cylinder, and a spring telescopic rod for enabling the telescopic cylinder to move up and down is fixedly mounted on the upper surface of the telescopic cylinder and the supporting bottom plate.

[0016] Preferably, a cooling pipe with a bent copper structure is attached to the outside of the battery module, and the cooling pipe is connected to a water tank fixedly installed on the upper surface of the support base plate.

[0017] Preferably, a one-way valve is installed outside the front end of the cooling pipe, and the rear end of the cooling pipe is connected to the storage airbag, and the position of the storage airbag corresponds to the position of the ultrasonic flaw detector.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the large steel pipe nondestructive testing equipment adopts a new structural design, and its specific contents are as follows: 1. The device moves inside the pipeline by rotating the moving roller. At this time, a high-definition camera and an ultrasonic flaw detector are used to inspect the inside of the pipeline. The high-definition camera takes images to determine obvious damage inside the pipeline, while the ultrasonic flaw detector emits ultrasonic waves to detect hidden and minor damage inside the pipeline. Furthermore, when the device moves in the pipeline, the telescopic cylinder pulls or pushes the pulling plate to rotate, so that the pulling plate drives the connecting block and the moving roller to change the angle, so that the moving roller can better fit the inner wall of the pipeline, and when the damaged position is detected, the pressure pump is used to spray the paint in the storage box from the nozzle, and the inner wall of the pipeline is marked in time, which is convenient for subsequent staff to quickly find the damaged position for maintenance operations.

[0019] 2. During the operation of the device, the driving motor is used to drive the reciprocating screw to rotate, so that the reciprocating screw drives the movable slider installed with a thread through the outside to move back and forth, and the movable slider drives the connecting rod to rotate, so that the connecting rod pulls the movable rack to slide inside the limiting slide groove, and the meshing between the movable rack and the transmission gear drives the transmission gear to rotate, so that the transmission gear drives the ultrasonic flaw detector to reciprocate up and down, thereby expanding the detection range of the ultrasonic flaw detector and avoiding missed detection; Furthermore, the reciprocating screw drives the active bevel gear coaxially fixed therewith to rotate during its rotation. At this time, the driven bevel gear meshing with the active bevel gear drives the stirring rod to rotate. The stirring rod is used to stir the inside of the storage box to prevent the marking paint from solidifying during long-term storage.

[0020] 3. When the ultrasonic flaw detector rotates upward, it squeezes the storage airbag. When the storage airbag is squeezed, the cooling water inside is sprayed out from the cleaning nozzle above, thereby cleaning the surface of the ultrasonic flaw detector to prevent dirt from affecting the detection accuracy of the ultrasonic flaw detector; Furthermore, after the cleaning nozzle sprays cooling water, the storage airbag restores its deformation, thereby generating negative pressure to cause the cooling water in the cooling pipe to flow and replenish the water in the storage airbag. At the same time, the cooling water flowing in the cooling pipe can cool the battery module and avoid damage to the battery module due to long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the supporting base structure of the present invention; Figure 3 This is a schematic diagram of the limiting slide structure of the present invention; Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle; Figure 5 This is a schematic diagram of the connection between the storage box and the pressure pump of the present invention; Figure 6 This is a schematic diagram of the connection relationship between the transmission gear and the movable rack of the present invention; Figure 7 This is a schematic diagram of the internal structure of the storage box of the present invention; Figure 8 This is a schematic diagram of the pull plate structure of the present invention; Fig. 9 For the present invention Figure 1 The enlarged structural diagram at B in the middle; Fig.10 This is a schematic diagram of the cooling pipeline structure of the present invention.

[0022] In the figure: 1. Support base plate; 2. Moving roller; 3. Connecting wire; 4. Battery module; 5. Mounting seat; 6. High-definition camera; 7. Ultrasonic flaw detector; 8. Transmission gear; 9. Movable rack; 10. Connecting rod; 11. Moving slider; 12. Reciprocating screw rod; 13. Driving motor; 14. Limiting slide; 15. Storage box; 16. Pressure pump; 17. Nozzle; 18. Delivery pipe; 19. Stirring rod; 20. Driven bevel gear; 21. Active bevel gear; 22. Connecting block; 23. Pulling plate; 24. Telescopic cylinder; 25. Spring telescopic rod; 26. Cooling pipe; 27. Water storage tank; 28. One-way valve; 29. ​​Storage air bag; 30. Cleaning nozzle. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example 1: Please refer to Figure 1-Figure 4 , Figure 6 and Figure 8In order to solve the problem that the detection effect of the traditional device using only the camera is poor, the present embodiment provides the following technical solutions, by adding an ultrasonic flaw detector 7, using ultrasonic signals to detect hidden damage and minor damage inside the pipeline, specifically disclosed: a horizontally arranged supporting base plate 1, a movable roller 2 is rotatably installed on the side of the supporting base plate 1, and a connecting wire 3 is connected to the upper surface of the rear end of the supporting base plate 1, a battery module 4 is fixedly installed in the middle position of the upper surface of the supporting base plate 1, and a mounting seat 5 is rotatably installed on the upper surface of the battery module 4, and a high-definition camera 6 is rotatably installed above the mounting seat 5, ultrasonic flaw detectors 7 are rotatably installed on the left and right sides of the supporting base plate 1, and the ultrasonic flaw detector 7 sends ultrasonic signals to detect flaws inside the pipeline, and a reciprocating mechanism for expanding the range of the ultrasonic flaw detector 7 is arranged inside the supporting base plate 1, and the reciprocating mechanism includes the same as the ultrasonic flaw detector 7 A transmission gear 8 and a movable rack 9 meshingly connected to the top of the transmission gear 8 are fixedly installed on the shaft, and a sliding structure is formed between the movable rack 9 and a limiting slide groove 14 opened inside the support base plate 1. A connecting rod 10 is rotatably installed on the side of the rear end of the movable rack 9, and the connecting rod 10 is rotatably connected to a moving slider 11. The moving slider 11 is threadedly connected to a reciprocating screw rod 12 rotatably installed inside the support base plate 1, and the reciprocating screw rod 12 is driven to rotate by a driving motor 13. The moving roller 2 is rotatably installed on the side of the connecting block 22, and the connecting block 22 is rotatably connected to the support base plate 1, and a pulling plate 23 with a bent structure is rotatably installed on the upper surface of the connecting block 22, and the pulling plate 23 is rotatably connected to a telescopic cylinder 24, and a spring telescopic rod 25 for its up and down movement is fixedly installed on the telescopic cylinder 24 and the upper surface of the support base plate 1.

[0025] When using the device, first put the entire device into the pipe that needs to be inspected, then use the battery module 4 to power the entire device, so as to drive the mobile roller 2 to rotate, and use the rotation of the mobile roller 2 to move the device inside the pipe. Before that, the telescopic cylinder 24 is opened according to the pipe, and the pulling plate 23 is driven to rotate by the telescopic cylinder 24, so that the pulling plate 23 drives the connecting block 22 and the mobile roller 2 to change the angle, so that the mobile roller 2 can better fit the inner wall of the pipe, providing greater friction to ensure normal movement. During the movement of the device, the high-definition camera 6 and the ultrasonic flaw detector 7 are turned on, and the high-definition camera 6 is used to take pictures. The image is used to detect more obvious damage on the inner wall of the pipeline (the high-definition camera 6 can be rotated at any angle using the mounting base 5), and at the same time, the drive motor 13 is turned on, and the drive motor 13 is used to drive the reciprocating screw 12 to rotate. During the rotation of the reciprocating screw 12, the movable slider 11 installed with a thread penetrating through the outside is driven to move back and forth, so that the movable slider 11 is used to drive the connecting rod 10 to rotate. During the rotation of the connecting rod 10, the movable rack 9 is driven to slide back and forth inside the limiting slide groove 14. Since the movable rack 9 is meshed with the transmission gear 8, the transmission gear 8 is used to drive the ultrasonic flaw detector 7 to reciprocate up and down, thereby expanding the flaw detection range of the ultrasonic flaw detector 7.

[0026] Example 2: Please refer to Figure 5 and Figure 7 In order to solve the problem that the traditional device cannot mark the damage in time when it is detected, thereby increasing the workload of the subsequent staff, the present embodiment provides the following technical solution. When the damage is found, paint is sprayed on the inner wall of the pipe to make an obvious mark. Specifically, it is disclosed that: a storage box 15 and a pressure pump 16 are fixedly installed on the upper surface of the front end of the supporting base plate 1, and the storage box 15 stores paint materials for marking, and a nozzle 17 is installed above the pressure pump 16, and the storage box 15 and the pressure pump 16 are connected to each other by a delivery pipe 18. A stirring mechanism for preventing the paint from solidifying is arranged inside the storage box 15, and the stirring mechanism includes a stirring rod 19 rotatably installed inside the storage box 15, and a driven bevel gear 20 is coaxially fixedly installed at the bottom end of the stirring rod 19, and the side of the driven bevel gear 20 is meshedly connected with an active bevel gear 21 that drives it to rotate, and the active bevel gear 21 is coaxially fixedly installed with the reciprocating screw 12.

[0027] When the device detects damage inside the pipeline, the pressure pump 16 is turned on, and the paint in the storage box 15 is sprayed out from the nozzle 17 through the delivery pipe 18, so that the corresponding position of the inner wall of the pipeline is sprayed with paint and marked, which is convenient for the staff to find the damaged position later. In the process of rotation, the reciprocating screw 12 drives the active bevel gear 21 coaxially fixed therewith to rotate. At this time, the driven bevel gear 20 meshing with the active bevel gear 21 is used to drive the stirring rod 19 to rotate, so that the stirring rod 19 is used to stir the paint inside the storage box 15 to prevent the paint from solidifying due to long-term storage.

[0028] Example 3: Please refer to Fig. 9 and Fig.10 In order to solve the problem of battery overheating and damage during long-term use of traditional devices, this embodiment provides the following technical solutions, using the coolant flowing in the cooling pipe 26 to cool the battery module 4, and specifically discloses: storage air bags 29 are installed on the upper surfaces of the left and right sides of the supporting base plate 1, and a cleaning nozzle 30 for cleaning the ultrasonic flaw detector 7 is fixedly installed above the storage air bag 29, a copper bent structure cooling pipe 26 is attached to the outside of the battery module 4, and the cooling pipe 26 is connected to a water tank 27 fixedly installed on the upper surface of the supporting base plate 1, a one-way valve 28 is installed on the outside of the front end of the cooling pipe 26, and the rear end of the cooling pipe 26 is connected to the storage air bag 29, and the position of the storage air bag 29 corresponds to the position of the ultrasonic flaw detector 7.

[0029] When the ultrasonic flaw detector 7 rotates upward, it squeezes the storage airbag 29. When the storage airbag 29 is squeezed, internal cooling water is sprayed out from the cleaning nozzle 30 above, and the sprayed cooling water is used to clean the surface of the ultrasonic flaw detector 7 to avoid affecting the flaw detection effect of the ultrasonic flaw detector 7. After that, when the ultrasonic flaw detector 7 rotates downward, the storage airbag 29 restores its deformation and sucks in cooling water to flow in the cooling pipe 26 (the cooling water in the cooling pipe 26 is replenished from the water tank 27). The cooling water flowing in the cooling pipe 26 cools down the battery module 4, thereby preventing the battery module 4 from being damaged by high temperature due to long-term use.

[0030] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A non-destructive testing device for large steel pipes, comprising a horizontally arranged support base plate (1), a movable roller (2) being rotatably mounted on the side of the support base plate (1), and a connecting wire (3) being connected to the upper surface of the rear end of the support base plate (1), characterized in that: Also includes: A battery module (4) is fixedly mounted in the middle of the upper surface of the support base plate (1), a mounting seat (5) is rotatably mounted on the upper surface of the battery module (4), and a high-definition camera (6) is rotatably mounted above the mounting seat (5); Ultrasonic flaw detectors (7) are rotatably mounted on the left and right sides of the support base plate (1), the ultrasonic flaw detector (7) emits ultrasonic signals to detect flaws inside the pipeline, and a reciprocating mechanism for expanding the range of the ultrasonic flaw detector (7) is provided inside the support base plate (1); A storage box (15) and a pressure pump (16) are fixedly mounted on the upper surface of the front end of the support base plate (1); the storage box (15) stores paint material for marking, and a nozzle (17) is mounted above the pressure pump (16); the storage box (15) and the pressure pump (16) are connected to each other via a delivery pipe (18); and a stirring mechanism for preventing paint from solidifying is arranged inside the storage box (15); Storage air bags (29) are installed on the upper surfaces of the left and right sides of the support base plate (1), and a cleaning nozzle (30) for cleaning the ultrasonic flaw detector (7) is fixedly installed above the storage air bags (29).

2. A large steel pipe nondestructive testing equipment according to claim 1, characterized in that: The reciprocating mechanism comprises a transmission gear (8) coaxially fixedly mounted with the ultrasonic flaw detector (7) and a movable rack (9) meshingly connected to the top of the transmission gear (10), and a sliding structure is formed between the movable rack (9) and a limiting sliding groove (14) provided inside the supporting base plate (1).

3. A large steel pipe nondestructive testing device according to claim 2, characterized in that: A connecting rod (10) is rotatably mounted on the rear end side of the movable rack (9), and the connecting rod (10) is rotatably connected to the movable slider (11).

4. A large steel pipe nondestructive testing device according to claim 3, characterized in that: The movable slider (11) is threadedly connected to a reciprocating screw (12) rotatably mounted inside the supporting base plate (1), and the reciprocating screw (12) is driven to rotate by a driving motor (13).

5. The large steel pipe nondestructive testing equipment according to claim 1 is characterized by: The stirring mechanism comprises a stirring rod (19) rotatably mounted inside the storage box (15), and a driven bevel gear (20) is coaxially and fixedly mounted on the bottom end of the stirring rod (19).

6. The large steel pipe nondestructive testing equipment according to claim 5 is characterized by: The driven bevel gear (20) is meshingly connected to a side surface thereof with a driving bevel gear (21) for driving the driven bevel gear (20) to rotate, and the driving bevel gear (21) and the reciprocating screw rod (12) are coaxially fixedly mounted.

7. The large steel pipe nondestructive testing equipment according to claim 1 is characterized by: The movable roller (2) is rotatably mounted on the side of the connecting block (22), and the connecting block (22) is rotatably connected to the supporting base plate (1), and a pulling plate (23) with a bent structure is rotatably mounted on the upper surface of the connecting block (22).

8. The large steel pipe nondestructive testing equipment according to claim 7 is characterized by: The pulling plate (23) is rotatably connected to the telescopic cylinder (24), and a spring telescopic rod (25) for enabling the telescopic cylinder (24) to move up and down is fixedly mounted on the upper surface of the supporting bottom plate (1).

9. The large steel pipe nondestructive testing equipment according to claim 5, characterized in that: A copper-made cooling pipe (26) with a bent structure is attached to the outside of the battery module (4), and the cooling pipe (26) is connected to a water storage tank (27) fixedly mounted on the upper surface of the supporting base plate (1).

10. The large steel pipe nondestructive testing equipment according to claim 9, characterized in that: A one-way valve (28) is installed outside the front end of the cooling pipe (26), and the rear end of the cooling pipe (26) is connected to the storage air bag (29), and the position of the storage air bag (29) corresponds to the position of the ultrasonic flaw detector (7).

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