An undersea pipeline vibration analysis and detection device and its detection method

Abstract

The present invention discloses a submarine pipeline vibration analysis and detection device and a detection method thereof, which relates to the field of submarine pipeline detection technology, and is intended to solve the problem that the existing device can only collect submarine pipeline vibration data when the spherical internal detector is in operation, but the vibration of the submarine pipeline is affected by the size of the tidal current and may change at any time, thereby causing inaccurate detection results, and the internal detection structure only has a detection function and cannot effectively suppress the impact of the tidal current on the pipeline. An annular guide groove is arranged inside the first detection ring frame and the second detection ring frame, a rack is installed on the inner wall of the annular guide groove, gears are arranged around the inside of the annular guide groove, four gears are arranged, and the four gears are meshed and connected to the racks, a stepper motor is installed at the rear end of the gear, and the output end of the stepper motor is connected to the gear transmission, and a connecting shaft is installed at the front end of the gear.

Description

Technical Field

[0001] The present invention relates to the technical field of subsea pipeline detection, and specifically to a subsea pipeline vibration analysis and detection device and a detection method therefor. Background Art

[0002] Subsea pipelines are important infrastructure for offshore oil and gas transportation. Monitoring or quasi-real-time detection of their structural health can avoid the rupture and failure of subsea pipelines, as well as the resulting economic losses and environmental disasters. Existing subsea pipeline detection devices usually adopt in-pipe detection;

[0003] For example, in the patent application with the application number CN109556700B and the name of a vibration detection method for subsea suspended pipelines, the method includes the following steps: fixing a triaxial acceleration sensor at the position as close to the center as possible inside the spherical in-line detector, configuring a storage module, a single-chip microcomputer, and a battery for the spherical in-line detector and fixing them; putting the spherical in-line detector into the pipeline for inspection. The triaxial acceleration sensor records all the acceleration signals of the spherical in-line detector, measures the acceleration data in the subsea pipeline. After the inspection is completed, the data recorded by the spherical in-line detector is downloaded to the upper computer for data processing; removing the DC component after performing Fourier transform on the acceleration data, and then performing Fourier transform again to obtain the DC data curve; and comparing it with the original data curve. At this time, the frequencies related to the rolling frequency f1 of the spherical in-line detector itself will all decrease, and the remaining unchanged peaks are f2 and 2f2, so as to obtain the vibration frequency of the pipeline.

[0004] However, the above device can only collect subsea pipeline vibration data when the spherical in-line detector is running. However, the vibration of the subsea pipeline is affected by the magnitude of the tidal current and may change at any time, resulting in inaccurate detection results. Moreover, the in-line detection structure only has a detection function and cannot effectively suppress the influence of the tidal current on the pipeline. Therefore, we propose a subsea pipeline vibration analysis and detection device and a detection method therefor to solve the problems raised above. Summary of the Invention

[0005] The purpose of the present invention is to provide a subsea pipeline vibration analysis and detection device and a detection method therefor, so as to solve the problem that the existing device in the above background art can only collect subsea pipeline vibration data when the spherical in-line detector is running. However, the vibration of the subsea pipeline is affected by the magnitude of the tidal current and may change at any time, resulting in inaccurate detection results. Moreover, the in-line detection structure only has a detection function and cannot effectively suppress the influence of the tidal current on the pipeline.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A subsea pipeline vibration analysis and detection device includes a first detection ring frame and a second detection ring frame. A plurality of the first detection ring frames and the second detection ring frames are provided, and they are distributed in pairs between adjacent pier foundations of the subsea pipeline;

[0007] Also includes:

[0008] An annular guide groove is arranged inside the first detection ring frame and the second detection ring frame, a rack is installed on the inner wall of the annular guide groove, gears are arranged around the inside of the annular guide groove, four gears are arranged, and the four gears are meshed and transmission-connected with the racks, a stepper motor is installed at the rear end of the gear, and the output end of the stepper motor is transmission-connected with the gear, a connecting shaft is installed at the front end of the gear, a slider is installed at one end of the connecting shaft, and a bearing is installed at the connection between the connecting shaft and the slider;

[0009] A generator mounted on the front end surface of the slider;

[0010] A transmission rod, which is installed between the generators on the first detection ring frame and the second detection ring frame, and a tidal current transmission mechanism is installed on the outer wall of the transmission rod, and four tidal current transmission mechanisms are provided;

[0011] The inner ring frame is arranged on the inner wall of the first detection ring frame and the second detection ring frame. The inner wall of the inner ring frame is installed with a detection mechanism, and sixteen detection mechanisms are arranged.

[0012] Preferably, the detection mechanism includes a sensor base, a pressure sensor and a hard rubber head, the sensor base is fixedly connected to the inner ring frame, the pressure sensor is installed at the end of the sensor base, and a hard rubber head is arranged on the outside of the pressure sensor. The detection mechanism can rely on the built-in pressure sensor to detect the stress conditions around the pipeline.

[0013] Preferably, a flexible protective layer is provided between the two sides of the inner ring frame and the submarine pipeline, and the flexible protective layer is bonded and connected to the submarine pipeline. The flexible protective layer can provide a certain protection effect on the detection mechanism to avoid the influence of external factors underwater.

[0014] Preferably, guide wheels are provided on both sides of the rear end of the slider, the guide wheels are rotatably connected to the slider through a rotating shaft, and the guide wheels are slidably connected to the inner walls of the first detection ring frame and the second detection ring frame. The guide wheels can play an auxiliary guiding role and improve the stability of the slider movement.

[0015] Preferably, a barcode identifier is provided between adjacent guide wheels and is fixedly connected to the bottom surface of the slider, and a distance positioning barcode is provided on the inner wall at the connection between the first detection ring frame and the second detection ring frame and the annular guide groove, and the barcode identifier can determine the position in the annular guide groove by identifying the distance positioning barcode.

[0016] Preferably, each of the tidal current transmission mechanisms includes two disc-shaped brackets and a plurality of blade plates. The blade plates are installed between the two disc-shaped brackets. When impacted by the tidal current, the transmission rod can rotate with the plurality of tidal current transmission mechanisms under the action of the blade plates, which can not only remove the impact force of the tidal current and suppress the vibration of the pipeline, but also drive the rotation of the generator rotor to cut the magnetic induction lines for power generation.

[0017] Preferably, an anti-collision rubber strip is provided on the outer wall of the disc-shaped bracket, and the anti-collision rubber strip is adhesively connected to the disc-shaped bracket. The anti-collision rubber strip can improve the protection performance of the disc-shaped bracket.

[0018] Preferably, support seats are installed at the lower ends of the first detection ring frame and the second detection ring frame. A trapezoidal pier is installed at the bottom end of the support seat, and a waterproof electric control box is installed at the front end of the support seat. The trapezoidal pier can provide good structural stability, and the waterproof electric control box is used to install the control components for the operation of the device.

[0019] Preferably, a single-chip microcomputer chip, a GPS positioning module, a storage battery, a power control module, a rectifier, and a wireless data transmission module are installed inside the waterproof electric control box. The output ends of the GPS positioning module, the pressure sensor, and the bar code identifier are electrically connected to the input end of the single-chip microcomputer chip. The single-chip microcomputer chip is bidirectionally connected to the remote control terminal through the wireless data transmission module. The output end of the generator is electrically connected to the input end of the storage battery through the rectifier. The output end of the storage battery is electrically connected to the input end of the single-chip microcomputer chip through the power control module. The storage battery is bidirectionally electrically connected to the power supply line.

[0020] Preferably, the detection method of the submarine pipeline vibration analysis and detection device includes the following steps:

[0021] Step 1: In the normal state, the four power generation mechanisms on the first detection ring frame and the second detection ring frame are evenly distributed around the submarine pipeline to disperse the water flow around.

[0022] Step 2: When the submarine tidal current invades, under the action of the high-intensity tidal current, the submarine pipeline will vibrate to a certain extent. At this time, the sixteen detection mechanisms inside the first detection ring frame and the second detection ring frame can rely on the built-in pressure sensors to detect the force condition of the whole body of the pipeline, and judge the general direction of the tidal current according to the force condition of the pipeline vibration. The information is fed back to the remote control terminal through the wireless data transmission module by the built-in single-chip microcomputer chip.

[0023] Step 3: After the remote control terminal receives the direction information of the tidal current, it simulates the optimal distribution orientation of the power generation mechanism for the tidal current in this direction, and feeds the result back to the single-chip microcomputer chip. The single-chip microcomputer chip drives the stepper motors at the rear ends of the four groups of sliders of the first detection ring frame and the second detection ring frame according to the received position information, driving the sliders and the power generation mechanism to move along the annular guide groove to the impact direction of the tidal current. During the movement, the bar code reader at the rear end of the slider identifies the distance positioning bar code on the inner side of the ring frame, so that the slider drives the generator to move to the correct preset position;

[0024] Step 4: After the position of the power generation mechanism is adjusted, under the impact of the tidal current, the transmission rod rotates with multiple tidal current transmission mechanisms under the action of the blade plate. On the one hand, the blade plate removes the impact force of the tidal current and suppresses the vibration of the pipeline. On the other hand, it drives the generator rotor to rotate together, cutting the magnetic induction line to generate electricity. The electric energy is rectified by the rectifier and stored in the storage battery. Part of the electric energy is converted into the DC or AC voltage suitable for the device through the power control module for supply and use, and the excess electric energy is fed back to the terminal energy storage device through the power supply line.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] 1. The present invention uses a first detection ring frame and a second detection ring frame as detection devices. Four groups of power generation mechanisms that rely on the annular movement of sliders are installed between the first detection ring frame and the second detection ring frame. And sixteen detection mechanisms are evenly distributed inside the first detection ring frame and the second detection ring frame. In the normal state, the four groups of power generation mechanisms on the first detection ring frame and the second detection ring frame are evenly distributed around the submarine pipeline, dispersing the surrounding water flow. When the submarine tide invades, under the action of high-intensity tide, the submarine pipeline will vibrate to a certain extent. At this time, the sixteen detection mechanisms inside the first detection ring frame and the second detection ring frame can detect the force condition of the whole body of the pipeline by relying on the built-in pressure sensors, and judge the general direction of the tide according to the force condition of the pipeline vibration. The information is fed back to the remote control terminal by the built-in single-chip microcomputer chip through the wireless data transmission module. After receiving the direction information of the tide, the remote control terminal simulates the best distribution orientation of the power generation mechanisms for the tide in this direction, and feeds the result back to the single-chip microcomputer chip, driving the four groups of power generation mechanisms on the first detection ring frame and the second detection ring frame to move along the annular guide groove to the impact direction of the tide. After the position of the power generation mechanism is adjusted, under the impact of the tide, the transmission rod rotates with multiple tide transmission mechanisms under the action of the paddle blade plate. On the one hand, the paddle blade plate removes the impact force of the tide and suppresses the pipeline vibration. On the other hand, it drives the generator rotor to rotate together, cutting the magnetic induction line to generate electricity, so as to reduce the energy consumption of the device and perform a certain amount of energy storage. The detection mechanism not only detects the vibration of the pipeline, but also serves as an auxiliary support structure when the pipeline vibrates abnormally. When the pipeline is unstable, it can be shock-absorbed and supported by the hard rubber head on the detection mechanism, greatly improving the functionality of the device, and solving the problem that the existing device can only collect the vibration data of the submarine pipeline when the spherical internal detector is running, but the vibration of the submarine pipeline is affected by the size of the tide and may change at any time, resulting in inaccurate detection results, and the internal detection structure only has the detection function and cannot effectively suppress the impact of the tide on the pipeline.

[0027] 2. By setting a bar code identifier at the bottom of the slider and setting distance positioning bar codes on the inner walls of the joints between the first detection ring frame and the second detection ring frame and the annular guide groove, the bar code identifier can determine the position of the slider in the annular guide groove by identifying the distance positioning bar codes, and combined with the terminal signal, make the position adjustment more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is the overall structure schematic diagram of the present invention;

[0029] Figure 2 is the internal structure schematic diagram of the present invention;

[0030] Figure 3 is the gear and rack transmission structure schematic diagram of the present invention;

[0031] Figure 4It is a structural schematic diagram of the tidal current transmission mechanism of the present invention;

[0032] Figure 5 It is an enlarged schematic diagram of the structure at A of the present invention;

[0033] Figure 6 It is the principle diagram of the present invention;

[0034] In the figure: 1. first detection ring frame; 2. second detection ring frame; 3. support seat; 4. trapezoidal pier; 5. waterproof electric control box; 6. annular guide groove; 7. slider; 8. generator; 9. transmission rod; 10. tidal transmission mechanism; 101. disc bracket; 102. anti-collision rubber strip; 103. paddle plate; 11. flexible protective layer; 12. inner ring frame; 13. rack; 14. detection mechanism; 141. sensor base; 142. pressure sensor; 143. hard rubber head; 15. gear; 16. connecting shaft; 17. bearing; 18. guide wheel; 19. rotating shaft; 20. barcode identifier; 21. distance positioning barcode; 22. single-chip microcomputer chip; 23. GPS positioning module; 24. battery; 25. power control module; 26. rectifier; 27. wireless data transmission module. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] See also Figure 1-6 The present invention provides an embodiment: a submarine pipeline vibration analysis and detection device, comprising a first detection ring frame 1 and a second detection ring frame 2, wherein a plurality of the first detection ring frames 1 and the second detection ring frames 2 are provided, and are distributed in groups of two between adjacent pier foundations of the submarine pipeline;

[0037] Also includes:

[0038] An annular guide groove 6 is arranged inside the first detection ring frame 1 and the second detection ring frame 2, a rack 13 is installed on the inner wall of the annular guide groove 6, gears 15 are arranged around the inside of the annular guide groove 6, four gears 15 are arranged, and the four gears 15 are meshed and transmission connected with the rack 13, a stepper motor is installed at the rear end of the gear 15, and the output end of the stepper motor is transmission connected with the gear 15, a connecting shaft 16 is installed at the front end of the gear 15, a slider 7 is installed at one end of the connecting shaft 16, and a bearing 17 is installed at the connection between the connecting shaft 16 and the slider 7;

[0039] A generator 8 mounted on the front end surface of the slider 7;

[0040] The drive rod 9 is installed between the generators 8 on the first detection ring frame 1 and the second detection ring frame 2. There are four tidal current drive mechanisms 10 installed on the outer wall of the drive rod 9.

[0041] The inner ring frame 12 is arranged on the inner walls of the first detection ring frame 1 and the second detection ring frame 2. There are sixteen detection mechanisms 14 installed on the inner wall of the inner ring frame 12.

[0042] Please refer to Figure 5 , the detection mechanism 14 includes a sensor base 141, a pressure sensor 142 and a hard rubber head 143. The sensor base 141 is fixedly connected to the inner ring frame 12. The pressure sensor 142 is installed at the end of the sensor base 141. There is a hard rubber head 143 outside the pressure sensor 142. There are sixteen detection mechanisms 14 distributed inside the first detection ring frame 1 and the second detection ring frame 2. When encountering tidal current impact, the detection mechanism 14 can rely on the built-in pressure sensor 142 to detect the stress condition of the whole pipeline body, and judge the general direction of the tidal current according to the stress condition of the pipeline vibration. The setting of the hard rubber head 143 can avoid damaging the outer wall of the pipeline, and at the same time, it can play an auxiliary supporting role when the pipeline is unstable.

[0043] Please refer to Figure 1 , there is a flexible protective layer 11 arranged between both sides of the inner ring frame 12 and the subsea pipeline, and the flexible protective layer 11 is adhesively connected to the subsea pipeline. The flexible protective layer 11 can play a certain protective effect on the detection mechanism 14, avoid the influence of underwater external factors, and improve the detection accuracy of the detection mechanism 14.

[0044] Please refer to Figure 3 , guide wheels 18 are arranged on both sides at the rear end of the slider 7. The guide wheels 18 are rotationally connected to the slider 7 through a rotating shaft 19. The guide wheels 18 are slidably connected to the inner walls of the first detection ring frame 1 and the second detection ring frame 2. During the process of the slider 7 moving along the annular guide groove 6, the guide wheels 18 can play an auxiliary guiding role and improve the moving stability of the slider 7.

[0045] Please refer to Figure 3 , a barcode identifier 20 is arranged between adjacent guide wheels 18, and the barcode identifier 20 is fixedly connected to the bottom surface of the slider 7. Distance positioning barcodes 21 are arranged on the inner walls at the connection of the first detection ring frame 1 and the second detection ring frame 2 and the annular guide groove 6. The barcode identifier 20 can determine the position in the annular guide groove 6 by identifying the distance positioning barcodes 21, making the position adjustment more accurate.

[0046] Please refer to Figure 4, each tidal current transmission mechanism 10 includes two disc-shaped brackets 101 and multiple blade plates 103. The blade plates 103 are installed between the two disc-shaped brackets 101. Under the impact of the tidal current, the transmission rod 9 rotates with the multiple tidal current transmission mechanisms 10 under the action of the blade plates 103. On the one hand, the impact force of the tidal current is removed by the blade plates 103 to inhibit the vibration of the pipeline. On the other hand, it drives the rotor of the generator 8 to rotate together to cut the magnetic induction lines to generate electricity.

[0047] Please refer to Figure 4 , an anti-collision rubber strip 102 is provided on the outer wall of the disc-shaped bracket 101, and the anti-collision rubber strip 102 is adhesively connected to the disc-shaped bracket 101. The setting of the anti-collision rubber strip 102 improves the protection performance of the disc-shaped bracket 101.

[0048] Please refer to Figure 1 , support seats 3 are installed at the lower ends of the first detection ring frame 1 and the second detection ring frame 2. A trapezoidal pier 4 is installed at the bottom end of the support seat 3. A waterproof electric control box 5 is installed at the front end of the support seat 3. The trapezoidal pier 4 has good structural stability, and the setting of the waterproof electric control box 5 is used to install the control components for the operation of the device.

[0049] Please refer to Figure 6 , a single-chip microcomputer chip 22, a GPS positioning module 23, a storage battery 24, a power control module 25, a rectifier 26 and a wireless data transmission module 27 are installed inside the waterproof electric control box 5. The output ends of the GPS positioning module 23, the pressure sensor 142 and the bar code identifier 20 are all electrically connected to the input end of the single-chip microcomputer chip 22. The single-chip microcomputer chip 22 is bidirectionally connected to the remote control terminal through the wireless data transmission module 27. The output end of the generator 8 is electrically connected to the input end of the storage battery 24 through the rectifier 26. The output end of the storage battery 24 is electrically connected to the input end of the single-chip microcomputer chip 22 through the power control module 25. The storage battery 24 is bidirectionally electrically connected to the power supply line. The GPS positioning module 23 can determine the installation position of each detection device, which is convenient to determine the site in time when problems occur in the pipeline section and improve the maintenance efficiency. The rectifier 26 is used to convert the alternating current generated by the generator into direct current and store it in the storage battery 24, and after conversion through the power control module 25, it is supplied for the device to use. The wireless data transmission module 27 can perform data interaction with the remote control terminal, receive the signals transmitted by the device, and realize the control of the device.

[0050] Please refer to Figure 1-6 , a detection method for a submarine pipeline vibration analysis detection device includes the following steps:

[0051] Step 1: In the normal state, the four groups of power generation mechanisms on the first detection ring frame 1 and the second detection ring frame 2 are evenly distributed around the submarine pipeline to disperse the water flow around.

[0052] Step 2: When the undersea current invades, under the action of high-intensity current, the submarine pipeline will vibrate to a certain extent. At this time, the sixteen detection mechanisms 14 inside the first detection ring frame 1 and the second detection ring frame 2 can rely on the built-in pressure sensors 142 to detect the force condition around the pipeline, and judge the general direction of the current according to the force condition of the pipeline vibration. The information is fed back to the remote control terminal by the built-in single-chip microcomputer chip 22 through the wireless data transmission module 27;

[0053] Step 3: After the remote control terminal receives the direction information of the current, it simulates the best distribution orientation of the power generation mechanisms for the current in this direction, and feeds back the result to the single-chip microcomputer chip 22. The single-chip microcomputer chip 22 drives the stepping motors at the rear ends of the four groups of sliders 7 of the first detection ring frame 1 and the second detection ring frame 2 to operate according to the received position information, driving the sliders 7 and the power generation mechanisms to move along the annular guide groove 6 to the impact direction of the current. When moving, the bar code identifiers 20 at the rear ends of the sliders 7 identify the distance positioning bar codes 21 on the inner side of the ring frame, so that the sliders 7 drive the generators to move to the correct preset positions;

[0054] Step 4: After the positions of the power generation mechanisms are adjusted, under the impact of the current, the transmission rods 9 rotate with multiple current transmission mechanisms 10 under the action of the blade plates 103. On the one hand, the impact force of the current is removed by the blade plates 103 to suppress the vibration of the pipeline. On the other hand, it drives the rotors of the generators 8 to rotate together to cut the magnetic induction lines for power generation. The electric energy is rectified by the rectifier 26 and stored in the storage battery 24. Part of the electric energy is converted into the applicable DC or AC voltage of the device through the power control module 25 for use, and the excess electric energy is fed back to the terminal energy storage device through the power supply line.

[0055] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed claims.

Claims

1. A submarine pipeline vibration analysis and detection device, comprising a first detection ring frame (1) and a second detection ring frame (2), wherein a plurality of the first detection ring frames (1) and the second detection ring frames (2) are provided and are distributed in groups of two between adjacent pier foundations of the submarine pipeline; It is characterized in that: Also includes: An annular guide groove (6) is arranged inside the first detection ring frame (1) and the second detection ring frame (2), a rack (13) is installed on the inner wall of the annular guide groove (6), gears (15) are arranged around the inside of the annular guide groove (6), four gears (15) are arranged, and the four gears (15) are meshed and transmission-connected with the rack (13), a stepping motor is installed at the rear end of the gear (15), and the output end of the stepping motor is transmission-connected with the gear (15), a connecting shaft (16) is installed at the front end of the gear (15), a slider (7) is installed at one end of the connecting shaft (16), and a bearing (17) is installed at the connection between the connecting shaft (16) and the slider (7); A generator (8) mounted on the front end surface of the slider (7); A transmission rod (9) is installed between the generator (8) on the first detection ring frame (1) and the second detection ring frame (2), and a tidal current transmission mechanism (10) is installed on the outer wall of the transmission rod (9), and four tidal current transmission mechanisms (10) are provided; An inner ring frame (12) is arranged on the inner wall of the first detection ring frame (1) and the second detection ring frame (2), and a detection mechanism (14) is installed on the inner wall of the inner ring frame (12), and sixteen detection mechanisms (14) are arranged; The detection mechanism (14) comprises a sensor base (141), a pressure sensor (142) and a hard rubber head (143); the sensor base (141) is fixedly connected to the inner ring frame (12); the pressure sensor (142) is mounted on the end of the sensor base (141); and the hard rubber head (143) is arranged outside the pressure sensor (142).

2. The undersea pipeline vibration analysis and detection device according to claim 1, wherein: A flexible protective layer (11) is provided between the two sides of the inner ring frame (12) and the submarine pipeline, and the flexible protective layer (11) is bonded and connected to the submarine pipeline.

3. The undersea pipeline vibration analysis and detection device according to claim 2, wherein: Guide wheels (18) are provided on both sides of the rear end of the slider (7); the guide wheels (18) are rotatably connected to the slider (7) via a rotating shaft (19); and the guide wheels (18) are slidably connected to the inner walls of the first detection ring frame (1) and the second detection ring frame (2).

4. The undersea pipeline vibration analysis and detection device according to claim 3, characterized in that: A barcode identifier (20) is provided between adjacent guide wheels (18), and the barcode identifier (20) is fixedly connected to the bottom surface of the slider (7), and a distance positioning barcode (21) is provided on the inner wall of the connection between the first detection ring frame (1) and the second detection ring frame (2) and the annular guide groove (6).

5. The vibration analysis and detection device for a subsea pipeline according to claim 4, characterized in that: Each of the tidal current transmission mechanisms (10) comprises two disc-type brackets (101) and a plurality of paddle plates (103), wherein the paddle plates (103) are installed between the two disc-type brackets (101).

6. The vibration analysis and detection device for a subsea pipeline according to claim 5, wherein: An anti-collision rubber strip (102) is provided on the outer wall of the disc-shaped bracket (101), and the anti-collision rubber strip (102) is adhesively connected to the disc-shaped bracket (101).

7. The undersea pipeline vibration analysis and detection device according to claim 6, characterized in that: Support seats (3) are installed at the lower ends of the first detection ring frame (1) and the second detection ring frame (2). A trapezoidal pier (4) is installed at the bottom end of the support seat (3), and a waterproof electric control box (5) is installed at the front end of the support seat (3).

8. The vibration analysis and detection device for submarine pipeline according to claim 7, wherein: A single-chip microcomputer chip (22), a GPS positioning module (23), a storage battery (24), a power control module (25), a rectifier (26), and a wireless data transmission module (27) are installed inside the waterproof electric control box (5). The output ends of the GPS positioning module (23), the pressure sensor (142), and the bar code identifier (20) are electrically connected to the input end of the single-chip microcomputer chip (22). The single-chip microcomputer chip (22) is bidirectionally connected to a remote control terminal through the wireless data transmission module (27). The output end of the generator (8) is electrically connected to the input end of the storage battery (24) through the rectifier (26). The output end of the storage battery (24) is electrically connected to the input end of the single-chip microcomputer chip (22) through the power control module (25). The storage battery (24) is bidirectionally electrically connected to the power supply line.

9. The detection method of a subsea pipeline vibration analysis and detection device according to claim 8, characterized in that, It includes the following steps: Step 1: In the normal state, the four groups of power generation mechanisms on the first detection ring frame (1) and the second detection ring frame (2) are evenly distributed around the subsea pipeline to disperse the water flow around. Step 2: When the subsea tide invades, under the action of the high-intensity tide, the subsea pipeline will vibrate to a certain extent. At this time, the sixteen detection mechanisms (14) inside the first detection ring frame (1) and the second detection ring frame (2) can rely on the built-in pressure sensor (142) to detect the force condition of the whole pipeline body, and judge the general direction of the tide according to the force condition of the pipeline vibration. The information is fed back to the remote control terminal through the wireless data transmission module (27) by the built-in single-chip microcomputer chip (22). Step 3: After receiving the direction information of the tide, the remote control terminal simulates the best distribution position of the power generation mechanism to cope with the tide, and feeds the result back to the single-chip microcomputer chip (22). The single-chip microcomputer chip (22) drives the stepper motors at the rear ends of the four groups of sliders (7) of the first detection ring frame (1) and the second detection ring frame (2) to run according to the received position information, driving the sliders (7) and the power generation mechanism to move along the annular guide groove (6) to the impact direction of the tide. When moving, the bar code identifier (20) at the rear end of the slider (7) identifies the distance positioning bar code (21) on the inner side of the ring frame, so that the slider (7) drives the generator to move to the correct preset position. Step 4: After the position of the power generation mechanism is adjusted, under the impact of the tidal current, the transmission rod (9) rotates with multiple tidal current transmission mechanisms (10) under the action of the blade plate (103). On the one hand, the impact force of the tidal current is removed by the blade plate (103) to suppress the vibration of the pipeline. On the other hand, it drives the rotor of the generator (8) to rotate together to cut the magnetic induction lines for power generation. The electric energy is rectified by the rectifier (26) and stored in the storage battery (24). Part of the electric energy is converted into the DC or AC voltage suitable for the device through the power supply control module (25) for use, and the excess electric energy is fed back to the terminal energy storage device through the power supply line.

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