A device for non-destructive testing of underwater metal pipes

Abstract

The utility model discloses a kind of nondestructive testing devices for underwater metal pipeline, it is related to metal pipeline detection technical field, including first pipeline and second pipeline, the one end of first pipeline and second pipeline is equipped with flange, and the outside of first pipeline and second pipeline is equipped with upper seal cover and lower seal cover, and upper seal cover and lower seal cover are fixed between by screw, and the inside of upper seal cover and lower seal cover is all set with cavity.The utility model has the beneficial effect that: the nondestructive testing device for underwater metal pipeline, by the pressure sensor and transmitter installed in seal cover, when the leakage leading to pressure change is generated in pipeline connection, data is transmitted to the communication equipment of staff in time, and seal cover inner convex half-ring slide rail supports waterproof camera, and under the meshing of gear and tooth ring, camera is rotated, so that staff can observe connection, judge damage condition.

Description

Technical Field

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

[0002] Underwater pipelines are submerged in water for extended periods, making them susceptible to chemical corrosion, physical wear, and biological adhesion, which can lead to leakage risks. Underwater metal pipeline inspection plays a vital role in ensuring infrastructure safety, preventing environmental pollution, and reducing maintenance costs.

[0003] Application No. 202321239680.3 discloses an underwater pipeline inspection device. By setting a sealing interlayer and a sealing gasket between a first protective wall and a second protective wall, the connecting section of the conveying pipeline is placed in a well-sealed cavity. By setting movable components and connectors, the installation and sealing of the first and second protective walls are facilitated. A flange is set to fix the two sections of the conveying pipeline for connection. A deformation detection component is set to detect whether the connecting section between the two sections of the conveying pipeline has deformed and to report it.

[0004] The detection structure described in the above application can only report on deformation at pipe connections, but it is difficult to detect in a timely manner when there is no deformation and the connection is loose or leaking. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a non-destructive testing device for underwater metal pipelines, solving the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a non-destructive testing device for underwater metal pipes, comprising a first pipe and a second pipe, both ends of which are fitted with flanges. An upper sealing cover and a lower sealing cover are fitted over the outer sides of the first and second pipes, and the upper and lower sealing covers are fixed together by screws. Both the upper and lower sealing covers have cavities inside, and a pressure sensor is installed inside each cavity. A signal transmitter is installed on one side of the pressure sensor. The upper and lower sealing covers are located inside... A convex semi-annular groove is provided on one side of the cavity. A convex semi-annular slide rail is slidably connected inside the convex semi-annular groove. A waterproof camera is installed on the inner side of one of the convex semi-annular slide rails. A semi-toothed ring is installed on the outer wall of the convex semi-annular slide rail. A concave annular groove is provided inside the upper and lower sealing covers and on one side of the convex semi-annular groove. A rotating shaft is rotatably connected inside one of the concave annular grooves. A gear is installed on the outer side of the rotating shaft. The gear meshes with the semi-toothed ring. A self-locking motor is installed inside one of the concave annular grooves. The output end of the self-locking motor is fixedly connected to the rotating shaft through a coupling.

[0007] Preferably, the upper and lower sealing covers are provided with convex sliding grooves on both sides corresponding to the convex semi-annular grooves. A convex slider is slidably connected inside the convex sliding groove. A limit frame is fixedly connected to the bottom of the convex slider. A telescopic spring is fixedly connected between the convex slider and the convex sliding groove.

[0008] Preferably, the cavity is equipped with a power supply that provides power to the waterproof camera, pressure sensor, and self-locking motor, as well as a wireless communication module and control circuit.

[0009] Preferably, the pressure sensor, wireless communication module, and control circuit are all equipped with waterproof components on their outer sides.

[0010] Preferably, the upper and lower sealing covers are provided with limiting ports on the corresponding sides of the cavity, which cooperate with the first and second pipes. A sealing ring is installed inside the limiting port, and the sealing ring is respectively attached to the outer wall of the first and second pipes.

[0011] Preferably, mounting components are installed on both sides of the flange and the upper sealing cover, and the mounting components have multiple mounting holes inside.

[0012] This utility model provides a non-destructive testing device for underwater metal pipelines, which has the following advantages: 1. This non-destructive testing device for underwater metal pipelines uses a pressure sensor and transmitter installed inside a sealed cover to transmit data to the operator's communication equipment in a timely manner when a leak occurs at the pipeline connection, causing a pressure change. The convex semi-circular slide rail inside the sealed cover supports the waterproof camera, and the camera rotates under the action of gear and toothed ring meshing, allowing the operator to observe the connection and determine the damage.

[0013] 2. This non-destructive testing device for underwater metal pipelines, through the combined structure of the upper and lower sealing covers and the alignment of the two convex semi-circular slide rails, allows the sealing covers to be disassembled, facilitating their installation and disassembly. Furthermore, the two convex semi-circular slide rails do not obstruct the installation, making the structure more flexible and convenient for the maintenance of the testing structure. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the internal structure of this utility model; Figure 4 This is a side view of the present invention.

[0015] In the diagram: 1. First pipe; 2. Second pipe; 3. Flange; 4. Upper sealing cover; 5. Lower sealing cover; 6. Waterproof camera; 7. Convex semi-annular groove; 8. Convex semi-annular slide rail; 9. Semi-toothed ring; 10. Concave annular groove; 11. Rotating shaft; 12. Gear; 13. Self-locking motor; 14. Pressure sensor; 15. Convex slide groove; 16. Convex slider; 17. Limiting frame; 18. Telescopic spring; 19. Limiting port; 20. Sealing ring; 21. Cavity; 23. Mounting component; 24. Mounting hole. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1 to 4This utility model provides a technical solution: a non-destructive testing device for underwater metal pipelines, including a first pipeline 1 and a second pipeline 2. A flange 3 is installed at one end of both the first pipeline 1 and the second pipeline 2. An upper sealing cover 4 and a lower sealing cover 5 are fitted onto the outer sides of the first pipeline 1 and the second pipeline 2. The upper sealing cover 4 and the lower sealing cover 5 are fixed together by screws, which helps to cover and seal the connection between the first pipeline 1 and the second pipeline 2. Mounting components 23 are installed on the corresponding sides of the flange 3 and the upper sealing cover 4. Multiple mounting holes 24 are opened inside the mounting components 23 to facilitate the fixing and disassembly of the upper sealing cover 4 and the lower sealing cover 5. The upper sealing cover 4 and the lower sealing cover 5 have corresponding mounting holes on the corresponding sides of the cavity 21. The limiting port 19, which mates with the first pipe 1 and the second pipe 2, has a sealing ring 20 installed inside. The sealing ring 20 fits against the outer wall of the first pipe 1 and the second pipe 2 respectively, which helps to increase the sealing performance of the upper sealing cover 4 and the lower sealing cover 5 between the first pipe 1 and the second pipe 2. Both the upper sealing cover 4 and the lower sealing cover 5 have cavities 21 inside, and pressure sensors 14 are installed inside the cavities 21. A signal transmitter is installed on one side of the pressure sensor 14 to detect changes in pressure such as air pressure inside the cavities 21 and transmit the data to the communication equipment of the staff to determine the leakage at the connection between the first pipe 1 and the second pipe 2. Both the upper sealing cover 4 and the lower sealing cover 5 have convex semi-annular grooves inside and on one side of the cavities 21. 7. A convex semi-annular slide rail 8 is slidably connected inside the convex semi-annular groove 7. A waterproof camera 6 is installed on the inner side of one of the convex semi-annular slide rails 8. The waterproof camera 6 can also have a built-in power supply for powering it. A semi-toothed ring 9 is installed on the outer wall of the convex semi-annular slide rail 8, so that the two convex semi-annular slide rails 8 and the two semi-toothed rings 9 can automatically align with the closing of the upper sealing cover 4 and the lower sealing cover 5 to form a complete circle, which can then rotate. A concave annular groove 10 is opened inside the upper sealing cover 4 and the lower sealing cover 5, located on one side of the convex semi-annular groove 7. A rotating shaft 11 is rotatably connected inside one of the concave annular grooves 10. A gear 12 is installed on the outer side of the rotating shaft 11. The gear 12 meshes with the semi-toothed ring 9. Through the meshing of the gear 12 and the semi-toothed ring 9, The alignment of the two convex semi-circular slide rails 8 and the two semi-toothed rings 9 allows the semi-toothed rings 9 to rotate along with the gear 12, driving the convex semi-circular slide rails 8 to rotate. This causes the waterproof camera 6 to move accordingly, facilitating observation of the connection between the first pipe 1 and the second pipe 2, as well as the situation inside the cavity 21. A self-locking motor 13 is installed inside one of the concave annular grooves 10. The output end of the self-locking motor 13 is fixedly connected to the rotating shaft 11 via a coupling, providing power for the rotation of the rotating shaft 11 and the gear 12. The self-locking motor 13 drives the convex semi-circular slide rails 8 to rotate up to 360° before returning to its initial position along the original path. The cavity 21 contains a power supply for the waterproof camera 6, the pressure sensor 14, and the self-locking motor 13, as well as a wireless communication module and control circuit.Waterproof components are installed on the outside of the pressure sensor 14, wireless communication module, and control circuit to improve the waterproof performance of the equipment. Convex grooves 15 are provided inside the upper sealing cover 4 and lower sealing cover 5 on both sides corresponding to the convex semi-annular groove 7. A convex slider 16 is slidably connected inside the convex groove 15. A limit frame 17 is fixedly connected to the bottom of the convex slider 16. A telescopic spring 18 is fixedly connected between the convex slider 16 and the convex groove 15, allowing the adjacent limit frames 17 to abut against both sides of the flange 3, aligning the upper sealing cover 4 and lower sealing cover 5 with the positions of the first pipe 1 and the second pipe 2, respectively. The deformation of the telescopic spring 18 facilitates spacing adjustment according to the thickness of the flange 3.

[0018] In summary, this non-destructive testing device for underwater metal pipelines involves inserting two convex semi-annular slide rails 8 into the convex semi-annular grooves 7 inside the upper sealing cover 4 and the lower sealing cover 5, respectively. The upper and lower sealing covers 4 and 5 are then fitted over the outside of the first pipeline 1 and the second pipeline 2, allowing the first and second pipelines 1 and 2 to pass through the limiting ports 19 on both sides of the upper and lower sealing covers 4 and 5. Simultaneously, the limiting brackets 17 inside the upper and lower sealing covers 4 and 5 abut against the flange 3 at the connection point of the first and second pipelines 1 and 2. Finally, the mounting parts 23 between the flange 3 and the upper sealing cover 4 are fixed with screws, thereby securing the upper and lower sealing covers 4 and 5. Meanwhile, the convex semi-annular grooves 7 inside the upper sealing cover 4... The semi-annular groove 7 and the convex semi-annular slide rail 8 are aligned with the convex semi-annular groove 7 and the convex semi-annular slide rail 8 inside the lower sealing cover 5 to form a complete ring, so that the upper sealing cover 4 and the lower sealing cover 5 seal the connection between the first pipe 1 and the second pipe 2. When a leak occurs, the pressure sensor 14 of model ZHX1712L senses the increase in air pressure in the cavity 21 of the upper sealing cover 4 and the lower sealing cover 5, and transmits the data to the communication equipment of the staff through the signal transmitter. The self-locking motor 13 drives the rotating shaft 11 to rotate. Through the meshing of the gear 12 on the outside of the rotating shaft 11 with the semi-tooth ring 9 on the outside of the convex semi-annular slide rail 8, the semi-tooth ring 9 is driven to slide and rotate. The waterproof camera 6 of model TP-Link Tapo C500 on the inside of the semi-tooth ring 9 moves accordingly, and transmits the image data of the connection between the first pipe 1 and the second pipe 2 and the environment inside the cavity 21 to the communication equipment. It is particularly suitable for the detection of important joints of underwater pipelines.

[0019] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The installation methods between equipment are also the same as conventional installation methods in the prior art. For example, the two ends of the shaft-shaped parts are connected by bearings, the connection position of the valve component is provided with anti-leakage rubber strips, the outside of the threaded rod or screw is provided with dust cover, and the equipment can be driven by either built-in battery or external power supply. The control method is automatic control by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, this utility model will not explain the control method and circuit connection in detail. The external controller mentioned in the specification can play a control role for the electrical components mentioned in this article, and the external controller is a conventional known device.

[0020] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A non-destructive testing device for underwater metal pipes, comprising a first pipe (1) and a second pipe (2), characterized in that: A flange (3) is installed at one end of both the first pipe (1) and the second pipe (2). An upper sealing cover (4) and a lower sealing cover (5) are fitted on the outer sides of the first pipe (1) and the second pipe (2). The upper sealing cover (4) and the lower sealing cover (5) are fixed together by screws. A cavity (21) is opened inside the upper sealing cover (4) and the lower sealing cover (5). A pressure sensor (14) is installed inside the cavity (21). A signal transmitter is installed on one side of the pressure sensor (14). A convex semi-annular groove (7) is opened inside the upper sealing cover (4) and the lower sealing cover (5) on one side of the cavity (21). The convex semi-annular groove (7) is slidably connected inside. A convex semi-circular slide rail (8) is connected to the inner side of one of the convex semi-circular slide rails (8), and a semi-tooth ring (9) is installed on the outer wall of the convex semi-circular slide rail (8). A concave ring groove (10) is opened inside the upper sealing cover (4) and the lower sealing cover (5) and located on one side of the convex semi-circular groove (7). A rotating shaft (11) is rotatably connected inside one of the concave ring grooves (10). A gear (12) is installed on the outer side of the rotating shaft (11). The gear (12) meshes with the semi-tooth ring (9). A self-locking motor (13) is installed inside one of the concave ring grooves (10). The output end of the self-locking motor (13) is fixedly connected to the rotating shaft (11) through a coupling.

2. The non-destructive testing device for underwater metal pipelines according to claim 1, characterized in that: The upper sealing cover (4) and the lower sealing cover (5) are provided with convex sliding grooves (15) on both sides corresponding to the convex semi-annular groove (7). A convex slider (16) is slidably connected inside the convex sliding groove (15). A limit frame (17) is fixedly connected to the bottom of the convex slider (16). A telescopic spring (18) is fixedly connected between the convex slider (16) and the convex sliding groove (15).

3. The non-destructive testing device for underwater metal pipelines according to claim 1, characterized in that: The cavity (21) is equipped with a power supply that provides power to the waterproof camera (6), pressure sensor (14), and self-locking motor (13), as well as a wireless communication module and control circuit.

4. A non-destructive testing device for underwater metal pipelines according to claim 3, characterized in that: Waterproof components are provided on the outside of the pressure sensor (14), wireless communication module, and control circuit.

5. A non-destructive testing device for underwater metal pipelines according to claim 1, characterized in that: The upper sealing cover (4) and the lower sealing cover (5) are provided with limiting ports (19) on both sides corresponding to the cavity (21) to cooperate with the first pipe (1) and the second pipe (2). A sealing ring (20) is installed inside the limiting port (19), and the sealing ring (20) is in contact with the outer wall of the first pipe (1) and the second pipe (2) respectively.

6. A non-destructive testing device for underwater metal pipelines according to claim 1, characterized in that: Mounting components (23) are installed on both sides of the flange (3) and the upper sealing cover (4), and multiple mounting holes (24) are opened inside the mounting components (23).

Images