Offshore wind power grouting material detection device and use method
By designing a detection device for offshore wind power grouting materials of different sizes, and combining a slag scraping and image acquisition mechanism, the problems of poor detection effect and dust influence in the existing technology have been solved, and a high-precision detection effect has been achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIAMEN JIEHANG ENG TESTING TECH CO LTD
- Filing Date
- 2022-12-27
- Publication Date
- 2026-06-09
AI Technical Summary
Existing offshore wind power grouting material testing devices cannot be adjusted according to the size of steel pipe piles, resulting in poor testing results. They also cannot effectively remove the influence of dust and cannot record the testing images of the steel pipe surface, leading to poor testing accuracy.
A detection device for offshore wind power grouting material was designed, including a base, a detection mechanism, a grout scraping mechanism, and an image acquisition mechanism. It can adapt to steel pipes of different sizes, remove dust through the grout scraping mechanism, record the surface condition of the steel pipe through the image acquisition mechanism, and perform detection using an acoustic sensor and multi-order harmonic signals.
It enables the fitting inspection of steel pipe piles of different sizes, improves the accuracy and precision of the inspection, effectively removes dust and records inspection images, and enhances the practicality and inspection effect of the inspection device.
Smart Images
Figure CN116106410B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of grout testing devices, and more specifically, to a grout testing device for offshore wind power and its usage method. Background Technology
[0002] Currently, the foundation types used for offshore wind turbines include monopile foundations, pile group foundations, jacket foundations, gravity foundations, and floating foundations. Among these, monopile foundations have become the most widely used foundation type for offshore wind turbines due to their simple structure, high technological maturity, good economic efficiency, and strong environmental adaptability.1 Currently, most of the completed monopile foundation wind power projects abroad are concentrated in Europe. In my country, most offshore wind power projects using monopile foundations are located in clay and sandy soil areas in Jiangsu Province. These areas have relatively soft geology, and hydraulic impact hammers can typically be used for direct pile driving without the need for rock embedding construction.
[0003] The wind, wave, and current loads experienced by offshore wind turbines are transferred to the steel pipe piles, which then transfer the loads to the ground through a grouting connection section. The grouting quality of the annular connection section between the steel pipe pile and the ground directly affects the overall stability and safety of the implanted monopile. Currently, non-destructive testing methods for grouting quality include ground-penetrating radar, ultrasonic testing, radiographic testing, and impact echo testing.
[0004] Existing testing devices cannot be adjusted according to the size of the steel pipe piles, resulting in poor testing performance because the device cannot fit the surface of the piles properly. Furthermore, the device cannot remove dust from the testing area, leading to inaccurate testing due to dust accumulation. Additionally, it cannot record images of the steel pipe surface during testing, making it inconvenient for staff to record data. Summary of the Invention
[0005] 1. Technical problems to be solved
[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a detection device and method for offshore wind power grouting material. The present invention can detect the surface of steel pipes and can also be adapted to steel pipes of different sizes. Furthermore, the surface of the steel pipes can be dusted before detection.
[0007] 2. Technical Solution
[0008] To solve the above problems, the present invention adopts the following technical solution:
[0009] A grouting material testing device for offshore wind power includes: a base and a remote control terminal. A testing mechanism is provided on the surface of the base. Two mounting shells are provided on the surface of the base and above the testing mechanism. A scraping mechanism is installed on the surface of each of the two mounting shells. Image acquisition mechanisms are installed on the top of each mounting shell and on both sides of the scraping mechanism. A height adjustment mechanism is provided on the surface of the base. A battery is installed on the surface of the base, and a communication sensor is installed on the top of the battery. The base includes a first support and a second support, which are rotatably connected. An installation groove adapted to the testing mechanism is formed on the surface of the base. A touch control screen is installed on the surface of the remote control terminal.
[0010] In a preferred embodiment of the present invention, the detection mechanism includes clamping blocks, an acoustic sensor, a first half-tooth ring, a second half-tooth ring, a first servo motor, and a worm gear. Multiple clamping blocks are provided, and each clamping block is slidably connected to the surface of a mounting groove. The acoustic sensor is mounted on the inner surfaces of the clamping blocks. The first half-tooth ring is slidably connected to the top of the base, and the second half-tooth ring is slidably connected to the top of the base. The first and second half-tooth rings are connected by a magnet. Multiple clamping blocks are threadedly connected to the bottom surfaces of the first and second half-tooth rings. The first servo motor is mounted on the surface of a second support base. The worm gear is mounted on the surface of the output shaft of the first servo motor, and the worm gear is adapted to the first and second half-tooth rings.
[0011] In a preferred embodiment of the present invention, the dust scraping mechanism includes a damping plate, a first damping cylinder, a second damping cylinder, a reducer, a damping spring, a rubber pad, and a dust scraper. The damping plate is mounted on the surface of the mounting housing, the first damping cylinder is mounted on the surface of the damping plate, the second damping cylinder is slidably connected to the surface of the first damping cylinder, the reducer is mounted inside the first damping cylinder, and the other end of the reducer is mounted inside the second damping cylinder. The damping spring is sleeved on the outside of the reducer, the rubber pad is disposed on the surface of the second damping cylinder, and the dust scraper is disposed on the surface of the rubber pad.
[0012] In a preferred embodiment of the present invention, the image acquisition mechanism includes a first protective shell, a support plate, a second protective shell, an acquisition camera, a rotating gear ring, a mounting block, a second servo motor, a first gear, a connecting shaft, a second gear, a first connecting block, a third half-gear ring, a third servo motor, a third gear, a second connecting block, a fourth servo motor, and a fourth gear. The first protective shell is mounted on the top surface of the mounting shell, the support plate is disposed on the inner surface of the first protective shell, the second protective shell is mounted on the surface of the support plate, the acquisition camera is mounted on the top surface of the second protective shell, the rotating gear ring is rotatably connected to the surface of the support plate, the mounting block is mounted on the surface of the support plate, and the second servo motor is mounted on the surface of the mounting block. The first gear is fixedly connected to the surface of the output shaft of the second servo motor, and the first gear meshes with the rotating gear ring. The connecting shaft is installed on the inner surface of the rotating gear ring. The second gear is installed on the surface of the connecting shaft. The first connecting block is rotatably connected to the surface of the connecting shaft. The third half gear ring is fixedly connected to the surface of the first connecting block. The third servo motor is fixedly connected to the surface of the first connecting block. The third gear is fixedly connected to the surface of the output shaft of the third servo motor, and the third gear meshes with the second gear. The second connecting block is slidably connected to the surface of the third half gear ring. The fourth servo motor is installed on the surface of the second connecting block. The fourth gear is installed on the surface of the output shaft of the fourth servo motor, and the fourth gear meshes with the third half gear ring.
[0013] In a preferred embodiment of the present invention, the height adjustment mechanism includes a mounting plate, a threaded rod, a fifth servo motor, and a limiting rod. The mounting plate is disposed on both sides of the first support base. The threaded rod is rotatably connected to the inner surfaces of the mounting plate, and the first support base is threadedly connected to the surface of the threaded rod. The fifth servo motor is mounted on one side of the mounting plate, and the output shaft of the fifth servo motor is fixedly connected to one end of the threaded rod. The limiting rod is mounted on the inner sides of the mounting plate and located on both sides of the threaded rod, and the first support base is slidably connected to the surface of the threaded rod.
[0014] In a preferred embodiment of the present invention, the communication sensor internally includes a data communication module, a data storage module, a signal receiving module, a signal transmitting module, a data comparison module, and a positioning module. The data communication module is used for signal connection with 5G, 4G, 3G, and WIFI. The data storage module is used for storing and backing up the telecommunication signals generated by the signal receiving module and the signal transmitting module. The signal receiving module is used for receiving electrical signals sent by a remote control terminal. The signal transmitting module is used for sending electrical signals to the detection mechanism, the image acquisition mechanism, the height adjustment mechanism, and the remote control terminal. The data comparison module is used for comparing the electrical signals received by the signal receiving module with the electrical signals sent by the signal transmitting module. The positioning module is used for positioning when the detection device moves. The remote control terminal internally includes an image adjustment module, The system comprises a preliminary stitching module, a 3D modeling module, a overlap deletion module, a secondary stitching module, a data receiving module, an intelligent adjustment module, and a display module. The image adjustment module arranges the received data and generates an image. The preliminary stitching module stitches the arranged image data together. The 3D modeling module determines the X, Y, and Z spatial coordinates of the image data and marks image points and special images acquired by the image acquisition mechanism. The overlap deletion module deletes or merges duplicate image data. The secondary stitching module stitches the 3D model with angles and distances. The image receiving module receives data signals from the communication sensor. The intelligent adjustment module allows staff to send movement signals to the communication sensor. The display module shows the stitched image to staff via a touchscreen control panel.
[0015] A method for using an offshore wind power grouting material testing device includes: S1, Firstly, four measuring lines are arranged along the axial direction on the inner wall of the steel pipe pile in the east, south, west, and north directions, respectively. The measuring lines are numbered E, S, W, and N. Before testing, water is pumped out of the wind turbine steel pipe pile. The final water level during testing is approximately -40m. Each measuring line starts from the seabed and extends to the water surface inside the pipe pile. The total length of the impact echo method testing is 59.3m.
[0016] S2. Then, the detection device is clamped onto the surface of the steel pipe through the base and detection mechanism. The height of the base is then adjusted by the height adjustment mechanism and the base is moved. While the base is moving, the dust removal mechanism removes dust from the surface of the steel pipe. At the same time, the image acquisition mechanism takes pictures of the surface of the steel pipe. When the base moves, the detection mechanism generates low-frequency stress waves on the surface of the steel pipe structure being tested. The stress waves are transmitted to the inside of the steel pipe and are reflected back when they encounter the bottom surface or defect surface of the steel pipe. They are received by the detection mechanism. By performing frequency domain and time domain analysis on the received stress waves, the internal quality condition of the structure being tested can be identified.
[0017] S3. When there are defects inside the structure under test, the frequency peak will "drift" to low frequency in the spectrum analysis of the test signal, and the fluctuation energy will change significantly. At the same time as the test, the same excitation and reception parameters are set through the remote control terminal, and the impact echo signal of each test point is recorded point by point until the test work of the entire test line is completed.
[0018] S4. Under impact, the surface of the steel pipe generates multi-order harmonic signals. Part of the stress wave propagates along the surface of the steel pipe, while another part of the energy penetrates the steel pipe and propagates into the concrete. At the interface between the steel pipe and the concrete, or between the steel pipe and the seawater, the stress wave will generate multiple reflected waves of different intensities. The superposition of these multiple reflected waves alters the vibration energy of the particles. Therefore, the difference in wave energy reflects the structural differences of the steel pipe pile and whether there are any defects in the compaction. The impact echo waveforms of all measuring points on the measuring line are transmitted point by point to the remote control terminal and arranged in sequence by the remote control terminal to form a wave train diagram. Based on the degree of difference in wave amplitude, the abnormal situation of non-compact grouting quality is judged.
[0019] In a preferred embodiment of the present invention, the formula for calculating the impact echo energy at each measuring point is as follows:
[0020]
[0021] In the formula, ω(t) is the acoustic wave energy; T is the recording time length of the acoustic wave reference section;
[0022] Determine the average value, root mean square error, and critical value of the fluctuation energy of the benchmark measurement section.
[0023] The mean square error σ is calculated as follows:
[0024]
[0025] In the formula, E i Let n be the sound wave energy at the measuring point, and n be the number of measuring points.
[0026] Non-compact anomaly critical value E r Sure:
[0027] The non-compact defect index δ is:
[0028] As a preferred embodiment of the present invention, in S1, the E-line detection and analysis includes: the detection depth range of the E-line is 25.3–39.9 m, the detection length is 14.6 m, the fluctuation energy range of each measuring point is 0.10–7.82, the non-compact defect index range is 0.03–2.16, the length of the non-compact section is 0.1 m, and the total length of the non-compact section is 0.9 m. In S1, the S-line detection depth range is 25.1–40.0 m, the detection length is 14.9 m; the fluctuation energy range of each measuring point is 0.07–4.88, the non-compact defect index range is 0.01–1.35; the length of the non-compact section ranges from 0.1 to 0.2 m, and the total length of the non-compact section is 0.6 m. In S1, the W-line detection and analysis is also included. The detection depth of the W-line is 25.0–39.9 m, and the detection length is 14.9 m. The fluctuation energy at each measuring point ranges from 0.04 to 4.30, and the non-compact defect index 8 ranges from 0.01 to 1.19. The length of the non-compact section is 0.1 m, and the total length of the non-compact section is 0.3 m. In the S1-line detection analysis, the detection depth of the N-line is 24.7–39.6 m, and the detection length is 14.9 m. The fluctuation energy at each measuring point ranges from 0.06 to 4.34, and the non-compact defect index 8 ranges from 0.02 to 2.22. The length of the non-compact section is 0.1 m, and the total length of the non-compact section is 0.4 m.
[0029] 3. Beneficial effects
[0030] Compared with the prior art, the advantages of this invention are:
[0031] (1) The present invention can be adjusted according to different steel pipes by using the base, detection mechanism and mounting shell together, and then fits the steel pipe surface after adjustment, thereby increasing the practicality of the detection device. The dust removal mechanism can remove the dust on the surface of the steel pipe before detection, thereby improving the accuracy of the detection. The image acquisition mechanism can record the specific condition of the steel pipe surface.
[0032] (2) By setting up multiple measuring lines, the present invention can emit multi-order harmonic signals from multiple angles of the steel pipe. The multi-order harmonic signals will penetrate and emit into the steel pipe and the concrete inside it, thereby improving the accuracy of the detection device. Attached Figure Description
[0033] Figure 1 This is a schematic diagram of a grouting material testing device for offshore wind power according to the present invention;
[0034] Figure 2 This is an exploded view of the detection mechanism in a marine wind power grouting material detection device of the present invention;
[0035] Figure 3This is a schematic diagram of the detection mechanism in a marine wind power grouting material detection device of the present invention;
[0036] Figure 4 This is a cross-sectional view of the grout scraping mechanism in a marine wind power grout testing device of the present invention;
[0037] Figure 5 This is a cross-sectional view of the image acquisition mechanism in a marine wind power grouting material detection device of the present invention;
[0038] Figure 6 This is an exploded view of the image acquisition mechanism in a marine wind power grouting material detection device of the present invention;
[0039] Figure 7 This is a schematic diagram of the height adjustment mechanism in a marine wind power grouting material testing device of the present invention;
[0040] Figure 8 This is a schematic diagram of the communication transmitter module in the offshore wind power grouting material detection device of the present invention;
[0041] Figure 9 This is a schematic diagram of a remote control terminal module in a marine wind power grouting material testing device of the present invention;
[0042] Figure 10 This diagram illustrates the evaluation criteria for detecting defects in implanted monopile grouting using the impact echo method in the application of a grouting material testing device for offshore wind power, as described in this invention.
[0043] Explanation of the labels in the diagram:
[0044] 1. Base; 101. First support base; 102. Second support base; 2. Detection mechanism; 201. Clamping block; 202. Acoustic sensor; 203. First half-gear ring; 204. Second half-gear ring; 205. First servo motor; 206. Worm gear; 3. Mounting shell; 4. Scraping mechanism; 401. Vibration damping plate; 402. First vibration damping cylinder; 403. Second vibration damping cylinder; 404. Reducer; 405. Vibration damping spring; 406. Rubber pad; 407. Scraping plate; 5. Image acquisition mechanism; 501. First protective shell; 502. Support plate; 503. Second protective shell; 504. Acquisition camera 505. Head; 506. Rotating gear ring; 507. Mounting block; 508. Second servo motor; 509. First gear; 510. Connecting shaft; 511. Second gear; 512. First connecting block; 513. Third half gear ring; 514. Third servo motor; 515. Second connecting block; 516. Fourth servo motor; 517. Fourth gear; 6. Height adjustment mechanism; 601. Mounting plate; 602. Threaded rod; 603. Fifth servo motor; 604. Limiting rod; 7. Battery; 8. Communication sensor; 9. Remote control terminal; 10. Touch control screen; 11. Mounting slot. Detailed Implementation
[0045] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.
[0046] Example:
[0047] Please see Figure 1-10 A detection device for offshore wind power grouting material includes: a base 1 and a remote control terminal 9. A detection mechanism 2 is provided on the surface of the base 1. Two mounting shells 3 are provided on the surface of the base 1 and above the detection mechanism 2. A scraping mechanism 4 is installed on the surface of each of the two mounting shells 3. An image acquisition mechanism 5 is installed on the top of the mounting shells 3 and on both sides of the scraping mechanism 4. A height adjustment mechanism 6 is provided on the surface of the base 1. A battery 7 is installed on the surface of the base 1. A communication sensor 8 is installed on the top of the battery 7. The base 1 includes a first support 101 and a second support 102, and the first support 101 and the second support 102 are rotatably connected. An installation groove 11 adapted to the detection mechanism 2 is opened on the surface of the base 1. A touch control screen 10 is installed on the surface of the remote control terminal 9.
[0048] In a specific embodiment of the present invention, the base 1, the detection mechanism 2 and the mounting shell 3 are used in combination to adjust the device according to different steel pipes and fit the device to the surface of the steel pipe after adjustment, thereby increasing the practicality of the detection device. The dust removal mechanism 4 can remove the dust from the surface of the steel pipe before detection, thereby improving the accuracy of the detection. The image acquisition mechanism 5 can record the specific condition of the steel pipe surface.
[0049] Specifically, the detection mechanism 2 includes a clamping block 201, an acoustic sensor 202, a first half-tooth ring 203, a second half-tooth ring 204, a first servo motor 205, and a worm gear 206. Multiple clamping blocks 201 are provided, and each clamping block 201 is slidably connected to the surface of the mounting groove 11. The acoustic sensor 202 is mounted on the inner surface of the clamping block 201. The first half-tooth ring 203 is slidably connected to the top of the base 1, and the second half-tooth ring 204 is slidably connected to the top of the base 1. The first half-tooth ring 203 and the second half-tooth ring 204 are connected by a magnet. Multiple clamping blocks 201 are threadedly connected to the bottom surfaces of the first half-tooth ring 203 and the second half-tooth ring 204. The first servo motor 205 is mounted on the surface of the second support base 102. The worm gear 206 is mounted on the surface of the output shaft of the first servo motor 205, and the worm gear 206 is adapted to the first half-tooth ring 203 and the second half-tooth ring 204.
[0050] In a specific embodiment of the present invention, by using the clamping block 201, acoustic sensor 202, first half-tooth ring 203, second half-tooth ring 204, first servo motor 205 and worm gear 206 in cooperation, when it is necessary to fit the steel pipe, the first half-tooth ring 203 and the second half-tooth ring 204 are first placed on the top of the second support base 102 and the first support base 101 from both sides, and the first half-tooth ring 203 and the second half-tooth ring 204 are meshed with the worm gear 206. Then, the first servo motor 205 is started through the remote control terminal 9. The output shaft of the first servo motor 205 rotates, driving the worm gear 206 to rotate, thereby driving the first half-tooth ring 203 and the second half-tooth ring 204 to rotate. Under the action of the threads on the surface of the first half-tooth ring 203 and the second half-tooth ring 204, the clamping block 201 moves inward, thereby allowing the multiple acoustic sensors 202 to fit with the steel pipe.
[0051] Specifically, the dust scraping mechanism 4 includes a shock absorber 401, a first shock absorber 402, a second shock absorber 403, a reducer 404, a shock absorber spring 405, a rubber pad 406, and a dust scraper 407. The shock absorber 401 is installed on the surface of the mounting shell 3. The first shock absorber 402 is installed on the surface of the shock absorber 401. The second shock absorber 403 is slidably connected to the surface of the first shock absorber 402. The reducer 404 is installed inside the first shock absorber 402, and the other end of the reducer 404 is installed inside the second shock absorber 403. The shock absorber spring 405 is sleeved on the outside of the reducer 404. The rubber pad 406 is disposed on the surface of the second shock absorber 403, and the dust scraper 407 is disposed on the surface of the rubber pad 406.
[0052] In a specific embodiment of the present invention, through the coordinated use of the damping plate 401, the first damping cylinder 402, the second damping cylinder 403, the reducer 404, the damping spring 405, the rubber pad 406, and the scraper 407, when the damping plate 401 moves, the scraper 407 will contact the outer surface of the steel pipe, and the scraper 407 will be subjected to force by the steel pipe. Subsequently, the scraper 407 will transmit the pressure to the rubber pad 406, and then the rubber pad 406 will transmit the pressure to the second damping cylinder 403. The second damping cylinder 403 will compress the damping spring 405 and the reducer 404 under pressure. At this time, the scraper 407 will fit better with the steel pipe. When the pressure disappears, the second damping cylinder 403 will rebound under the action of the reducer 404 and the damping spring 405, and drive the rubber pad 406 and the scraper 407 to reset.
[0053] Specifically, the image acquisition mechanism 5 includes a first protective shell 501, a support plate 502, a second protective shell 503, a camera 504, a rotating gear ring 505, a mounting block 506, a second servo motor 507, a first gear 508, a connecting shaft 509, a second gear 510, a first connecting block 511, a third half-gear ring 512, a third servo motor 513, a third gear 514, a second connecting block 515, a fourth servo motor 516, and a fourth gear 517. The first protective shell 501 is mounted on the top surface of the mounting shell 3. The support plate 502 is disposed on the inner surface of the first protective shell 501. The second protective shell 503 is mounted on the surface of the support plate 502. The camera 504 is mounted on the top surface of the second protective shell 503. The rotating gear ring 505 is rotatably connected to the surface of the support plate 502. The mounting block 506 is mounted on the surface of the support plate 502. The second servo motor 507 is mounted on the surface of the mounting block 506. The first gear 508 is fixedly connected to the surface of the output shaft of the second servo motor 507, and the first gear 508 meshes with the rotating gear ring 505. The connecting shaft 509 is installed on the inner surface of the rotating gear ring 505. The second gear 510 is installed on the surface of the connecting shaft 509. The first connecting block 511 is rotatably connected to the surface of the connecting shaft 509. The third half gear ring 512 is fixedly connected to the surface of the first connecting block 511. The third servo motor 513 is fixedly connected to the surface of the first connecting block 511. The third gear 514 is fixedly connected to the surface of the output shaft of the third servo motor 513, and the third gear 514 meshes with the second gear 510. The second connecting block 515 is slidably connected to the surface of the third half gear ring 512. The fourth servo motor 516 is installed on the surface of the second connecting block 515. The fourth gear 517 is installed on the surface of the output shaft of the fourth servo motor 516, and the fourth gear 517 meshes with the third half gear ring 512.
[0054] In a specific embodiment of the present invention, through the coordinated use of the first protective shell 501, support plate 502, second protective shell 503, acquisition camera 504, rotating gear ring 505, mounting block 506, second servo motor 507, first gear 508, connecting shaft 509, second gear 510, first connecting block 511, third half gear ring 512, third servo motor 513, third gear 514, second connecting block 515, fourth servo motor 516, and fourth gear 517, the acquisition camera 504 records the path traversed by the detection device in real time. When it is necessary to adjust the angle of the acquisition camera 504, the second servo motor 507 is activated. The output shaft of 507 rotates, causing the first gear 508 to rotate. The rotation of the first gear 508 causes the rotating gear ring 505 to rotate. The output shaft of the third servo motor 513 rotates, causing the third gear 514 to rotate. When the third gear 514 rotates, the first connecting block 511 moves under the action of the second gear 510 on the surface of the connecting shaft 509, thereby causing the third half gear ring 512 to move. The output shaft of the fourth servo motor 516 rotates, causing the fourth gear 517 to rotate. At this time, under the action of the third half gear ring 512, the fourth servo motor 516 causes the second connecting block 515 to move, thereby causing the acquisition camera 504 to be adjusted at any three-dimensional angle.
[0055] Specifically, the height adjustment mechanism 6 includes a mounting plate 601, a threaded rod 602, a fifth servo motor 603, and a limiting rod 604. The mounting plate 601 is disposed on both sides of the first support base 101. The threaded rod 602 is rotatably connected to the inner surface of the mounting plate 601, and the first support base 101 is threadedly connected to the surface of the threaded rod 602. The fifth servo motor 603 is mounted on the surface of one side of the mounting plate 601, and the output shaft of the fifth servo motor 603 is fixedly connected to one end of the threaded rod 602. The limiting rod 604 is mounted on the inner side of the mounting plate 601 and located on both sides of the threaded rod 602, and the first support base 101 is slidably connected to the surface of the threaded rod 602.
[0056] In a specific embodiment of the present invention, by using the mounting plate 601, threaded rod 602, fifth servo motor 603 and limiting rod 604 in cooperation, when it is necessary to move the base 1, the fifth servo motor 603 is started, and the output shaft of the fifth servo motor 603 rotates to drive the threaded rod 602 to rotate. At this time, the first support 101 will move under the action of the threaded rod 602, and at the same time, the first support 101 will move on the surface of the limiting rod 604, thereby increasing the stability of the first support 101 when moving.
[0057] Specifically, the communication sensor 8 internally includes a data communication module, a data storage module, a signal receiving module, a signal transmitting module, a data comparison module, and a positioning module. The data communication module is used for signal connection with 5G, 4G, 3G, and WIFI. The data storage module is used for storing and backing up the telecommunication signals generated by the signal receiving and transmitting modules. The signal receiving module is used to receive electrical signals sent by the remote control terminal 9. The signal transmitting module is used to send electrical signals to the detection mechanism 2, the image acquisition mechanism 5, the height adjustment mechanism 6, and the remote control terminal 9. The data comparison module is used to compare the electrical signals received by the signal receiving module with the electrical signals sent by the signal transmitting module. The positioning module is used for positioning when the detection device moves. The remote control terminal 9 internally includes an image adjustment module and a preliminary stitching module. The system includes a module, a 3D modeling module, a overlap deletion module, a secondary stitching module, a data receiving module, an intelligent adjustment module, and a display module. The image adjustment module arranges the received data and generates an image. The preliminary stitching module stitches the arranged image data together. The 3D modeling module determines the X, Y, and Z spatial coordinates of the image data and marks the image points and special images acquired by the image acquisition mechanism 5. The overlap deletion module deletes or merges duplicate image data. The secondary stitching module stitches the 3D model with angles and distances. The image receiving module receives data signals sent by the communication sensor 8. The intelligent adjustment module allows staff to send movement signals to the communication sensor 8. The display module shows the stitched image to the staff through the touch control screen 10.
[0058] In a specific embodiment of the present invention, the data communication module facilitates signal connection between the communication sensor 8 and 5G, 4G, 3G, and WIFI. The data storage module stores and backs up the telecommunications signals generated by the signal receiving and signal transmitting modules. The signal receiving module receives electrical signals sent by the remote control terminal 9. The signal transmitting module sends electrical signals to the detection mechanism 2, image acquisition mechanism 5, height adjustment mechanism 6, and remote control terminal 9. The data comparison module compares the electrical signals received by the signal receiving module with those sent by the signal transmitting module. The positioning module allows for positioning of the detection device during movement. The image adjustment module allows for... The received data is arranged and generated into an image. Through the settings of the preliminary stitching module, the arranged image data can be stitched together. Through the settings of the 3D modeling module, the spatial coordinates of the X, Y, and Z of the image data can be determined, and the image points and special images acquired by the image acquisition mechanism 5 can be marked. Through the settings of the overlap deletion module, duplicate image data can be deleted or merged. Through the settings of the secondary stitching module, the 3D model can be stitched together with angles and distances. Through the settings of the image receiving module, the data signals sent by the communication sensor 8 can be received. Through the settings of the intelligent adjustment module, it is convenient for the staff to send movement signals to the communication sensor 8. Through the settings of the display module, the stitched image can be displayed to the staff for observation through the touch control screen 10.
[0059] A method for using an offshore wind power grouting material testing device includes: S1, Firstly, four measuring lines are arranged along the axial direction on the inner wall of the steel pipe pile in the east, south, west, and north directions, respectively. The measuring lines are numbered E, S, W, and N. Before testing, water is pumped out of the wind turbine steel pipe pile. The final water level during testing is approximately -40m. Each measuring line starts from the seabed and extends to the water surface inside the pipe pile. The total length of the impact echo method testing is 59.3m.
[0060] S2. Then, the detection device is clamped on the surface of the steel pipe by the base 1 and the detection mechanism 2. The height of the base 1 is then adjusted by the height adjustment mechanism 6 and the base 1 is moved. While the base 1 is moving, the dust removal mechanism 4 removes dust from the surface of the steel pipe. At the same time, the image acquisition mechanism 5 takes pictures of the surface of the steel pipe. When the base 1 moves, the detection mechanism 2 generates low-frequency stress waves on the surface of the steel pipe structure being tested. The stress waves are transmitted to the inside of the steel pipe and are reflected back when they encounter the bottom surface or defect surface of the steel pipe. They are received by the detection mechanism 2. By performing frequency domain and time domain analysis on the received stress waves, the internal quality condition of the structure being tested can be identified.
[0061] S3. When there are defects inside the structure under test, the frequency peak will "drift" to the low frequency in the spectrum analysis of the test signal, and the fluctuation energy will change significantly. At the same time as the test, the same excitation and reception parameters are set through the remote control terminal 9, and the impact echo signal of each test point is recorded point by point until the test work of the entire test line is completed.
[0062] S4. Under impact, the steel pipe surface generates multi-order harmonic signals. Part of the stress wave propagates along the steel pipe surface, while another part penetrates the steel pipe and propagates into the concrete. At the interface between the steel pipe and concrete, or between the steel pipe and seawater, the stress wave will generate multiple reflected waves of different intensities. The superposition of these multiple reflected waves alters the vibration energy of the particles. Therefore, the difference in wave energy reflects the structural differences of the steel pipe pile and whether there are any defects in the compaction. The impact echo waveforms of all measuring points on the measuring line are transmitted point by point to the remote control terminal 9 and arranged sequentially by the remote control terminal 9 to form a wave train diagram. Based on the degree of difference in wave amplitude, the abnormality of non-compact grouting quality is judged. The formula for calculating the impact echo energy of each measuring point is:
[0063]
[0064] In the formula, ω(t) is the acoustic wave energy; T is the recording time length of the acoustic wave reference section;
[0065] Determine the average value, root mean square error, and critical value of the fluctuation energy of the benchmark measurement section.
[0066] The mean square error σ is calculated as follows:
[0067]
[0068] In the formula, E i Let n be the sound wave energy at the measuring point, and n be the number of measuring points.
[0069] Non-compact anomaly critical value E r Sure:
[0070] The non-compact defect index δ is:
[0071] In a specific embodiment of the present invention, by setting up multiple measuring lines, multi-order harmonic signals can be emitted from multiple angles of the steel pipe. The multi-order harmonic signals can penetrate and be emitted into the steel pipe and the concrete inside it, thereby improving the accuracy of the detection device during detection.
[0072] Specifically, the detection analysis of the E-line in S1: The detection depth of the E-line ranges from 25.3 to 39.9 m, the detection length is 14.6 m, the fluctuation energy range of each measuring point is 0.10 to 7.82, the non-compact defect index ranges from 0.03 to 2.16, the length of the non-compact section is 0.1 m, and the total length of the non-compact section is 0.9 m. The detection depth of the S-line in S1 ranges from 25.1 to 40.0 m, the detection length is 14.9 m; the fluctuation energy range of each measuring point is 0.07 to 4.88, the non-compact defect index ranges from 0.01 to 1.35; the length of the non-compact section ranges from 0.1 to 0.2 m, and the total length of the non-compact section is 0.6 m. The detection analysis of the W-line in S1... The detection depth of the W measuring line ranges from 25.0 to 39.9 m, and the detection length is 14.9 m. The fluctuation energy at each measuring point ranges from 0.04 to 4.30, and the non-compact defect index 8 ranges from 0.01 to 1.19. The length of the non-compact section is 0.1 m, and the total length of the non-compact section is 0.3 m. For the N measuring line in S1, the detection depth ranges from 24.7 to 39.6 m, and the detection length is 14.9 m. The fluctuation energy at each measuring point ranges from 0.06 to 4.34, and the non-compact defect index 8 ranges from 0.02 to 2.22. The length of the non-compact section is 0.1 m, and the total length of the non-compact section is 0.4 m.
[0073] In a specific embodiment of the present invention, the use of multiple measuring lines facilitates the recording of the detection depth, detection length, fluctuation energy range, and length of the non-dense section.
[0074] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concept, should be covered within the scope of protection of the present invention.
Claims
1. A device for detecting grouting material for offshore wind power, characterized in that, include: The base (1) and remote control terminal (9) are provided with a detection mechanism (2) on the surface of the base (1), and two mounting shells (3) are provided on the surface of the base (1) and above the detection mechanism (2). A scraping mechanism (4) is installed on the surface of each of the two mounting shells (3). An image acquisition mechanism (5) is installed on the top of the mounting shell (3) and on both sides of the scraping mechanism (4). A height adjustment mechanism (6) is provided on the surface of the base (1). A storage battery (7) is installed on the surface of the base (1). A communication sensor (8) is installed on the top of the storage battery (7). The base (1) includes a first support (101) and a second support (102), and the first support (101) and the second support (102) are rotatably connected. An installation groove (11) adapted to the detection mechanism (2) is opened on the surface of the base (1). A touch control screen (10) is installed on the surface of the remote control terminal (9). The detection mechanism (2) includes a clamping block (201), an acoustic sensor (202), a first half-tooth ring (203), a second half-tooth ring (204), a first servo motor (205), and a worm gear (206). Multiple clamping blocks (201) are configured, and each clamping block (201) is slidably connected to the surface of the mounting groove (11). The acoustic sensor (202) is mounted on the inner surface of the clamping blocks (201). The first half-tooth ring (203) is slidably connected to the top of the base (1), and the second half-tooth ring (204)... The first half-tooth ring (203) and the second half-tooth ring (204) are connected by a magnet. The multiple clamping blocks (201) are threaded to the bottom surfaces of the first half-tooth ring (203) and the second half-tooth ring (204). The first servo motor (205) is mounted on the surface of the second support base (102). The worm gear (206) is mounted on the surface of the output shaft of the first servo motor (205), and the worm gear (206) is adapted to the first half-tooth ring (203) and the second half-tooth ring (204).
2. The offshore wind power grouting material testing device according to claim 1, characterized in that, The dust scraping mechanism (4) includes a shock absorber plate (401), a first shock absorber cylinder (402), a second shock absorber cylinder (403), a reducer (404), a shock absorber spring (405), a rubber pad (406), and a dust scraper plate (407). The shock absorber plate (401) is installed on the surface of the mounting shell (3). The first shock absorber cylinder (402) is installed on the surface of the shock absorber plate (401). The second shock absorber cylinder (403) is slidably connected to the surface of the first shock absorber cylinder (402). The reducer (404) is installed inside the first shock absorber cylinder (402), and the other end of the reducer (404) is installed inside the second shock absorber cylinder (403). The shock absorber spring (405) is sleeved on the outside of the reducer (404). The rubber pad (406) is disposed on the surface of the second shock absorber cylinder (403). The dust scraper plate (407) is disposed on the surface of the rubber pad (406).
3. The offshore wind power grouting material testing device according to claim 1, characterized in that, The image acquisition mechanism (5) includes a first protective shell (501), a support plate (502), a second protective shell (503), an acquisition camera (504), a rotating gear ring (505), a mounting block (506), a second servo motor (507), a first gear (508), a connecting shaft (509), a second gear (510), a first connecting block (511), a third half gear ring (512), a third servo motor (513), a third gear (514), a second connecting block (515), a fourth servo motor (516), and a fourth gear (517). The first protective shell (501) is mounted on the top surface of the mounting shell (3), the support plate (502) is disposed on the inner surface of the first protective shell (501), the second protective shell (503) is mounted on the surface of the support plate (502), the acquisition camera (504) is mounted on the top surface of the second protective shell (503), the rotating gear ring (505) is rotatably connected to the surface of the support plate (502), the mounting block (506) is mounted on the surface of the support plate (502), and the second servo motor (507) is mounted on the mounting block (506). The first gear (508) is fixedly connected to the surface of the output shaft of the second servo motor (507), and the first gear (508) meshes with the rotating gear ring (505). The connecting shaft (509) is mounted on the inner surface of the rotating gear ring (505). The second gear (510) is mounted on the surface of the connecting shaft (509). The first connecting block (511) is rotatably connected to the surface of the connecting shaft (509). The third half gear ring (512) is fixedly connected to the surface of the first connecting block (511). The third servo motor (513) is fixedly connected to the surface of the first connecting block (511). The third gear (514) is fixedly connected to the surface of the first connecting block (511), and the third gear (514) is fixedly connected to the surface of the output shaft of the third servo motor (513). The third gear (514) meshes with the second gear (510). The second connecting block (515) is slidably connected to the surface of the third half-gear ring (512). The fourth servo motor (516) is mounted on the surface of the second connecting block (515). The fourth gear (517) is mounted on the surface of the output shaft of the fourth servo motor (516), and the fourth gear (517) meshes with the third half-gear ring (512).
4. The offshore wind power grouting material testing device according to claim 1, characterized in that, The height adjustment mechanism (6) includes a mounting plate (601), a threaded rod (602), a fifth servo motor (603), and a limiting rod (604). The mounting plate (601) is disposed on both sides of the first support base (101). The threaded rod (602) is rotatably connected to the inner surface of the mounting plate (601), and the first support base (101) is threadedly connected to the surface of the threaded rod (602). The fifth servo motor (603) is mounted on the surface of one side of the mounting plate (601), and the output shaft of the fifth servo motor (603) is fixedly connected to one end of the threaded rod (602). The limiting rod (604) is mounted on the inner side of the mounting plate (601) and located on both sides of the threaded rod (602), and the first support base (101) is slidably connected to the surface of the threaded rod (602).
5. The offshore wind power grouting material testing device according to claim 1, characterized in that, The communication sensor (8) internally includes a data communication module, a data storage module, a signal receiving module, a signal transmitting module, a data comparison module, and a positioning module. The data communication module is used for signal connection with 5G, 4G, 3G, and WIFI. The data storage module is used for storing and backing up the telecommunications signals generated by the signal receiving module and the signal transmitting module. The signal receiving module is used for receiving electrical signals sent by the remote control terminal (9). The signal transmitting module is used for sending electrical signals to the detection mechanism (2), the image acquisition mechanism (5), the height adjustment mechanism (6), and the remote control terminal (9). The data comparison module is used for comparing the electrical signals received by the signal receiving module with the electrical signals sent by the signal transmitting module. The positioning module is used for positioning when the detection device moves. The remote control terminal (9) internally includes an image adjustment module, a preliminary stitching module, and a positioning module. The system includes a receiving module, a 3D modeling module, an overlap deletion module, a secondary stitching module, a data receiving module, an intelligent adjustment module, and a display module. The image adjustment module arranges the received data and generates an image from the data. The preliminary stitching module stitches the arranged image data together. The 3D modeling module determines the X, Y, and Z spatial coordinates of the image data and marks the image points and special images acquired by the image acquisition mechanism (5). The overlap deletion module deletes or merges duplicate image data. The secondary stitching module stitches the 3D model with angles and distances. The image receiving module receives the data signals sent by the communication sensor (8). The intelligent adjustment module sends movement signals to the communication sensor (8) through the staff. The display module displays the stitched image to the staff through a touch control screen (10).
6. A method of using the offshore wind power grouting material testing device according to any one of claims 1-5, characterized in that, include: S1. First, four measuring lines were arranged along the axial direction on the inner wall of the steel pipe pile in the east, south, west and north directions. The measuring lines were numbered E, S, W and N respectively. Before the test, water was pumped out of the wind turbine steel pipe pile. The final water level during the test was about -40m. Each measuring line was measured from the seabed to the water surface inside the pipe pile. The total length of the impact echo method test was 59.3m. S2. Then, the detection device is clamped on the surface of the steel pipe by the base (1) and the detection mechanism (2). Then, the height of the base (1) is adjusted by the height adjustment mechanism (6) and the base (1) is moved. While the base (1) is moving, the dust removal mechanism (4) removes dust from the surface of the steel pipe. At the same time, the image acquisition mechanism (5) takes pictures of the surface of the steel pipe. When the base (1) moves, the detection mechanism (2) generates low-frequency stress waves on the surface of the steel pipe structure. The stress waves are transmitted to the inside of the steel pipe. When they encounter the bottom surface or defect surface of the steel pipe, they are reflected back and received by the detection mechanism (2). By performing frequency domain and time domain analysis on the received stress waves, the internal quality status of the structure under test can be identified. S3. When there are defects inside the structure under test, the frequency peak will "drift" to the low frequency in the spectrum analysis of the test signal, and the fluctuation energy will change greatly. At the same time, the same excitation and reception parameters are set through the remote control terminal (9), and the impact echo signal of each test point is recorded point by point until the test work of the entire test line is completed. S4. Under impact, the surface of the steel pipe generates multi-order harmonic signals. Part of the stress wave spreads along the surface of the steel pipe, while the other part of the energy penetrates the steel pipe and propagates into the concrete. At the interface between the steel pipe and the concrete, or between the steel pipe and the seawater, the stress wave will generate multiple reflection waves of different intensities. The superposition of multiple reflection waves will change the vibration energy of the particles. Therefore, the difference in wave energy reflects the structural differences of the steel pipe pile and whether there is a non-compact defect. The impact echo waveforms of all measuring points on the measuring line are transmitted point by point to the remote control terminal (9) and arranged in sequence through the remote control terminal (9) to form a wave train diagram. Based on the degree of difference in wave amplitude, the non-compact grouting quality abnormality is judged.
7. The method of using the offshore wind power grouting material testing device according to claim 6, characterized in that, The formula for calculating the acoustic wave energy at each measuring point is: In the formula, ω(t) is the acoustic wave energy; γ is the recording time length of the acoustic wave reference section, and t is the recording time point of the acoustic wave reference section; Determine the average value, root mean square error, and critical value of the fluctuation energy of the benchmark measurement section. The mean square error σ is calculated as follows: In the formula, E i Let n be the sound wave energy at the measuring point, and n be the number of measuring points. Non-compact anomaly critical value E r Sure: Non-compact defect index δ i for:
8. The method of using the offshore wind power grouting material testing device according to claim 6, characterized in that, Analysis of the E-line detection in S1: The detection depth of the E-line ranges from 25.3 to 39.9 m, the detection length is 14.6 m, the fluctuation energy at each measuring point ranges from 0.10 to 7.82, the non-compact defect index ranges from 0.03 to 2.16, the length of the non-compact section is 0.1 m, and the total length of the non-compact section is 0.9 m. Analysis of the S-line detection in S1: The detection depth ranges from 25.1 to 40.0 m, the detection length is 14.9 m; the fluctuation energy at each measuring point ranges from 0.07 to 4.88, the non-compact defect index ranges from 0.01 to 1.35; the length of the non-compact section ranges from 0.1 to 0.2 m, and the total length of the non-compact section is 0.6 m. The analysis of the W-line detection in S1 shows that the detection depth ranges from 25.0 to 39.9 m, and the detection length is 14.9 m. The fluctuation energy range at each measuring point is 0.04 to 4.30, and the range of the non-compact defect index 8 is 0.01 to 1.
19. The length of the non-compact section is 0.1 m, and the total length of the non-compact section is 0.3 m. The analysis of the N-line detection in S1 shows that the detection depth ranges from 24.7 to 39.6 m, and the detection length is 14.9 m. The fluctuation energy range at each measuring point is 0.06 to 4.34, and the range of the non-compact defect index 8 is 0.02 to 2.
22. The length of the non-compact section is 0.1 m, and the total length of the non-compact section is 0.4 m.