An underwater geomembrane defect detection device

Abstract

The utility model discloses an underwater geomembrane defect detection device belongs to geomembrane defect detection field, the utility model discloses a waterproof shell, power mechanism and detection mechanism, waterproof shell includes sealed connection's upper waterproof shell and lower waterproof shell, power mechanism fixedly connected in the lower waterproof shell tail part, detection mechanism includes the multibeam sonar imaging device fixedly connected in the lower waterproof shell bottom, the upper waterproof shell is assembled with power supply and infrared probe, and the detection end of infrared probe is worn and comes out the upper waterproof shell, and the water surface condition is detected in real time, the lower waterproof shell is assembled with engine, data processing center module and radio remote control system, multibeam sonar imaging device detects and identifies geomembrane breakage situation, and signal transmission to data processing center module carries out analysis processing. The technical problem that the current underwater geomembrane cannot be high -efficient fast real -time detection, possibly can not lead to the timely discovery geomembrane leakage situation.

Description

Technical Field

[0001] This utility model relates to the field of geomembrane defect detection technology, and more specifically to an underwater geomembrane defect detection device. Background Technology

[0002] In water conservancy projects and water-related seepage prevention projects, geomembranes play a crucial role in achieving seepage prevention and protection functions. However, if defects in geomembranes are not detected and addressed in a timely manner after installation and long-term operation, they can significantly affect the seepage prevention effect of the project and threaten its safety.

[0003] Currently, defect detection of geomembranes (or geotextiles) mostly relies on manual inspections combined with simple tools, or traditional sampling inspections after the geomembrane has been laid for a period of time. However, these methods have the following problems:

[0004] 1. Manual inspection is inefficient and greatly affected by the experience and responsibility of the inspectors, making it difficult to accurately identify minor defects, such as minor damage or leakage points in the geomembrane, which are easy to miss and cannot fully control the condition of the geomembrane.

[0005] 2. Traditional sampling inspections are delayed, usually carried out after a period of time following the laying. If defects exist in the geomembrane in the early stages, they cannot be detected and dealt with in time. As the defects develop and expand, they will increase the difficulty and cost of repair, and may even affect the normal operation of the project.

[0006] 3. During manual inspection, the inspectors work underwater and are subject to interference from environmental factors such as water flow and waves. This not only results in poor inspection conditions and high risks, but also may cause secondary damage to the geomembrane due to external force.

[0007] 4. The lack of efficient and accurate testing institutions makes it difficult to conduct comprehensive and routine monitoring of underwater geomembranes, and makes it impossible to grasp the development trend of geomembrane defects in real time, which poses hidden dangers to the long-term safe operation of the project.

[0008] To address the aforementioned issues, research revealed that the vacuum method, water injection method, and dual-electrode method can be used to detect geomembrane damage after reservoir impoundment. However, the vacuum and water injection methods have high geological requirements and are limited to use before reservoir impoundment. The dual-electrode method has a wider range of applications, but its defect detection efficiency is low for large-area reservoirs. The inability to perform efficient and rapid real-time detection may lead to the failure to detect geomembrane leakage in a timely manner, resulting in significant water loss and ultimately affecting the safe operation of the reservoir. Utility Model Content

[0009] 1. Technical problem to be solved by the utility model

[0010] To address the aforementioned problems in existing underwater geomembrane defect detection technologies, this invention provides an underwater geomembrane defect detection device. By mounting a multibeam sonar imaging device at the bottom of a waterproof shell, the device detects and identifies geomembrane damage, achieving accurate, efficient, and real-time detection of underwater geomembrane defects and reducing human intervention.

[0011] 2. Technical Solution

[0012] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0013] An underwater geomembrane defect detection device includes a waterproof shell, a power mechanism, and a detection mechanism. The waterproof shell comprises a sealed upper waterproof shell and a lower waterproof shell. The power mechanism is fixedly connected to the tail of the lower waterproof shell. The detection mechanism includes a multi-beam sonar imaging device fixedly connected to the bottom of the lower waterproof shell. The upper waterproof shell houses a power supply and an infrared probe, with the detection end of the infrared probe extending through the upper waterproof shell to monitor the water surface in real time. The device uses infrared light to detect and transmit the returned signal to a data processing center module, enabling precise obstacle avoidance on the water surface. The lower waterproof shell houses an engine, a data processing center module, and a radio remote control system. The multi-beam sonar imaging device detects and identifies geomembrane damage and transmits the signal to the data processing center module for analysis and processing.

[0014] The underwater geomembrane defect detection device is further equipped with a predetermined guide rail module and a GPS navigation module inside the upper waterproof shell; the predetermined guide rail module is pre-set with a cruise route and works with the GPS navigation module to achieve automatic cruise and precise positioning.

[0015] The underwater geomembrane defect detection device has two power mechanisms, both of which are obliquely outward-opening and include a propeller, a fixed bracket, and a motor. The fixed bracket is connected to the rear of the lower waterproof shell in an outward-opening V-shape. The far end of the fixed bracket is connected to the motor, and the output end of the motor is rotatably connected to the propeller. The two motors are powered by an engine.

[0016] Further underwater geomembrane defect detection device, the detection mechanism also includes a telescopic rod, the top of the telescopic rod is fixedly connected to the bottom of the lower waterproof shell, and a multi-beam sonar imaging device is fixedly connected to the bottom of the telescopic rod to conduct detection in waters at different depths.

[0017] Further underwater geomembrane defect detection device: the upper and lower waterproof shells are connected by bolt pairs, and a semi-circular groove is opened at the connection between the upper and lower waterproof shells. A suitable sealing strip is fixed in the groove to improve the sealing effect.

[0018] 3. Beneficial effects

[0019] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0020] (1) The underwater geomembrane defect detection device of this utility model can accurately and efficiently detect underwater geomembranes without being limited by the experience of manual detection or environmental interference, avoid missed detection and secondary damage, realize all-round and normalized monitoring, timely detect defects and grasp development trends, ensure the safe operation of the underwater geomembrane seepage prevention system, and better exert the seepage prevention performance and service life of geomembranes.

[0021] (2) The underwater geomembrane defect detection device of this utility model is less affected by water flow and can work continuously for a long time, reducing the cost of manual detection. It has the advantages of comprehensive detection data and rapid analysis, providing a basis for subsequent geomembrane repair. Attached Figure Description

[0022] Figure 1 This is an isometric view of an underwater geomembrane defect detection device according to a specific embodiment;

[0023] Figure 2 This is a schematic diagram simulating the transparent state of the upper waterproof outer shell in a specific embodiment;

[0024] Figure 3 This is a schematic diagram simulating a transparent state of the lower waterproof outer shell in a specific embodiment;

[0025] Figure 4 This is a schematic diagram of the power mechanism structure in a specific embodiment;

[0026] Figure 5 This is a schematic diagram of the detection mechanism structure in a specific embodiment;

[0027] Figure 6 This is a partially enlarged schematic diagram of the connection between the upper and lower waterproof outer shell molds in a specific embodiment.

[0028] In the diagram: 1-Upper waterproof outer shell; 11-Power supply; 12-Backup power supply; 13-Preset guide rail module; 14-GPS navigation module; 15-Infrared sensor;

[0029] 2-Lower waterproof outer casing; 21-Engine; 22-Data processing center module; 23-Radio remote control system; 24-Bolt; 25-Sealing strip;

[0030] 3-Power mechanism; 31-Propeller; 32-Motor; 33-Fixed bracket;

[0031] 4-Detection mechanism; 41-Telescopic pole; 42-Multibeam sonar imaging device. Detailed Implementation

[0032] To further understand the contents of this utility model, the invention will be described in detail with reference to the accompanying drawings.

[0033] Example 1

[0034] The underwater geomembrane defect detection device of this embodiment, such as Figure 1 , 2 As shown in Figure 3, the device includes a waterproof outer shell, a power mechanism 3, and a detection mechanism 4. The waterproof outer shell consists of an upper waterproof outer shell 1 and a lower waterproof outer shell 2 that are sealed together. The power mechanism 3 is fixedly connected to the tail of the lower waterproof outer shell 2. The detection mechanism 4 includes a multi-beam sonar imaging device 42 fixedly connected to the bottom of the lower waterproof outer shell 2. The upper waterproof outer shell 1 is equipped with a power supply 11 and an infrared probe 15. The detection end of the infrared probe 15 extends out of the upper waterproof outer shell 1 to detect the water surface conditions in real time and achieve precise obstacle avoidance on the water surface. The lower waterproof outer shell 2 is equipped with an engine 21, a data processing center module 22, and a radio remote control system 23. The multi-beam sonar imaging device 42 detects and identifies the damage to the geomembrane and transmits the signal to the data processing center module 22 for analysis and processing.

[0035] The underwater geomembrane defect detection device of this embodiment uses acoustic waves to detect and return the location of signal anomalies in real time during use, allowing direct observation of the damage. This improves the accuracy of geomembrane defect detection and avoids the problems of difficult sensor maintenance and replacement and low accuracy in traditional geomembrane defect detection methods. It is applicable to a variety of water conservancy projects.

[0036] Example 2

[0037] The underwater geomembrane defect detection device in this embodiment has the same basic configuration as in Embodiment 1, with the following differences or improvements: Figure 1-6As shown: There are two power supplies 11, one of which is a backup power supply 12, providing power support for the entire device; the upper waterproof shell 1 is also equipped with a predetermined guide rail module 13 and a GPS navigation module 14; the predetermined guide rail module 13 is pre-set with a cruise route and works with the GPS navigation module to achieve automatic cruise and precise positioning. There are two power mechanisms 3, both of which are obliquely outward-opening, including a propeller 31, a fixed bracket 33 and a motor 32; the fixed bracket 33 is connected to the rear of the lower waterproof shell 2 in an outward-opening V-shape, and the far end of the fixed bracket 33 is connected to the motor 32, the output end of the motor 32 is rotatably connected to the propeller 31; the two motors 32 provide power through the engine 21 to provide power support for the propeller 31. The testing mechanism 4 also includes a telescopic rod 41, the top of which is fixedly connected to the bottom of the lower waterproof outer shell 2. A multi-beam sonar imaging device 42 is fixedly connected to the bottom of the telescopic rod 41 for testing water at different depths. The telescopic rod 41 is an electric telescopic rod with length markings on its body and a built-in pressure sensor to prevent the lower multi-beam sonar imaging device 42 from applying excessive pressure to the geomembrane and causing damage. The upper waterproof outer shell 1 and the lower waterproof outer shell 2 are connected by bolts 24. A semi-circular groove is opened at the connection between the upper waterproof outer shell 1 and the lower waterproof outer shell 2, and a matching sealing strip 25 is fixed in the groove to improve the sealing effect.

[0038] The multi-beam sonar imaging device 42 includes a sonar transmitting probe, a sonar receiving probe, and a signal conditioning module. The sonar transmitting probe transmits a detection wave, the sonar receiving probe receives the reflected wave, and the signal conditioning module performs preliminary filtering and amplification processing on the received signal.

[0039] The radio remote control system 23 adopts a low-power, long-distance wireless communication module with channel encryption function to ensure data transmission security and is suitable for waterborne operation environment.

[0040] The data processing center includes a data analysis server, a display terminal, and a defect early warning module. The data analysis server performs defect identification, location, and quantitative analysis on the received signals, the display terminal displays the test results, and the defect early warning module issues early warning prompts for abnormal data.

[0041] The data processing center module 22 transmits the infrared signals and sonar signals obtained by the infrared probe 15 and the multi-beam sonar imaging device 42 to the data processing center module 22 for analysis, marks the abnormal positions of the sonar signals, and can return their corresponding position coordinates, thereby realizing the underwater defect detection of geomembrane; the entire device is remotely controlled by the radio remote control system 23.

[0042] The infrared probe 15, multibeam sonar imaging device 42, predetermined guide rail module 13, GPS navigation module 14, data processing center module 22, and radio remote control system 23 used in the underwater geomembrane defect detection device of this embodiment are all existing technologies, and their internal structure and working principle will not be described in detail.

[0043] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention. The actual structure and manufacturing steps are not limited to these. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. An underwater geomembrane defect detection device, characterized in that, include: A waterproof enclosure comprising a sealed upper waterproof enclosure and a lower waterproof enclosure; The power mechanism is fixedly connected to the rear of the lower waterproof outer shell; The testing facility includes a multibeam sonar imaging device fixedly connected to the bottom of the lower waterproof housing; The upper waterproof shell is equipped with a power supply and an infrared probe. The detection end of the infrared probe extends out of the upper waterproof shell to monitor the water surface in real time. The lower waterproof outer shell houses the engine, data processing center module, and radio remote control system; The multibeam sonar imaging device detects and identifies damage to the geomembrane and transmits the signals to the data processing center module for analysis and processing.

2. The underwater geomembrane defect detection device according to claim 1, characterized in that: The upper waterproof outer shell is also equipped with a predetermined guide rail module and a GPS navigation module; the predetermined guide rail module is pre-set with a cruise route and works with the GPS navigation module to achieve automatic cruise and precise positioning.

3. The underwater geomembrane defect detection device according to claim 2, characterized in that: The power mechanism consists of two sets, both of which are angled outwards.

4. The underwater geomembrane defect detection device according to claim 2, characterized in that: The detection mechanism also includes a telescopic rod, the top of which is fixedly connected to the bottom of the lower waterproof shell, and a multi-beam sonar imaging device is fixedly connected to the bottom of the telescopic rod.

5. The underwater geomembrane defect detection device according to any one of claims 1 to 4, characterized in that: A semi-circular groove is provided at the connection between the upper and lower waterproof outer shells, and a matching sealing strip is fixed in the groove.

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