Intelligent fault early warning device for floating offshore wind power semi-submersible foundation

Abstract

The application discloses a kind of floating offshore wind power semi-submersible floating body foundation wisdom fault early warning device, comprising: early warning device can be early warning to traction rope slack, breakage.After the slack, breakage of traction rope, movable block is taken down with clamping block, fixed rope is contacted from the clamping groove between first clamping groove and second clamping groove and is clamped state, seawater swings with early warning float, so that fixed rope is separated from clamping box, early warning float floats to sea surface and is found to achieve early warning effect, solve the problem that cable appears slack, breakage, and is difficult to be found by staff in time.

Description

Technical Field

[0001] This invention relates to an intelligent fault early warning device for a floating semi-submersible foundation for offshore wind power, belonging to the field of offshore wind power construction technology. Background Technology

[0002] When the water depth exceeds 50 meters in floating offshore wind power construction environments, floating foundations utilize anchoring systems to anchor the floating structure to the seabed, serving as a foundation platform for installing wind turbine generators. This approach offers advantages such as lower cost and easier transportation. The anchoring system plays a crucial role in securing the semi-submersible floating foundation during routine operations.

[0003] The anchoring system works by connecting a semi-floating foundation to a subsea cable foundation using multiple cables. Whenever the semi-floating foundation is subjected to external stresses such as waves or wind, the cables can pull the foundation in place, preventing it from shifting or tipping over. However, because the cables in the anchoring system are below the sea surface, it is difficult for workers to detect in a timely manner if a single cable becomes slack or breaks. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a smart fault early warning device for floating semi-submersible offshore wind power foundations.

[0005] The present invention is achieved through the following technical solutions.

[0006] This invention provides a smart fault early warning device for a floating semi-submersible offshore wind turbine foundation, comprising:

[0007] A warning device that can provide early warning of slack or breakage of the traction rope.

[0008] The early warning device includes an early warning box that is fixedly installed on the seabed during construction;

[0009] The warning box has a movable block that can be slidably installed inside. The movable block is connected to a traction rope, which passes through the warning box and connects to a semi-submersible foundation.

[0010] A clamping block is fixed to the side wall of the movable block, and a groove is provided inside the warning box to accommodate the clamping block. The clamping block has a first clamping groove. A clamping box is fixed to the side wall of the warning box, and the clamping box has a second clamping groove. It also includes a fixing rope, which corresponds to the size of the first clamping groove and the second clamping groove. The clamping block is pulled up by the traction rope, and the fixing rope is clamped in the first clamping groove and the second clamping groove. A warning float is fixed to the top of the fixing rope.

[0011] The bottom of the movable block is fixedly connected to the warning box by a reset spring.

[0012] The bottom of the warning box is fixedly connected to a first fixing block; the first fixing block is a plurality of blocks arranged in a circumferential array; the bottom of the first fixing block is fixed with a connecting rod, the connecting rod is a plurality of blocks arranged in a circumferential array, each connecting rod corresponds to one first fixing block; the outer walls of the plurality of connecting rods are fixed with stirrups.

[0013] The traction rope passes through the warning box and is connected to the semi-submersible foundation via a tension gauge; the traction rope is fixedly connected to the movable block via a second fixed block.

[0014] The warning float is fixed with a warning block on top, a smoke emitter is installed inside the warning block, and a warning signal light is fixed on top of the warning block.

[0015] A limiting block is fixed to the side of the movable block relative to the clamping block, and the limiting block is set to the size of the clamping block; two opposing limiting rods are fixedly connected inside the warning box, and the two limiting rods can slide with the clamping block and the limiting block; the inner wall of the warning box is provided with a sliding groove for the limiting block to slide up and down.

[0016] Two buffer pads are installed in the warning box corresponding to the clamping block and the limiting block. The buffer pads are provided with through grooves so that the limiting rod can pass through without contacting it.

[0017] The top of the warning box is fitted with a sleeve, and the traction rope passes through the sleeve at the top of the warning box.

[0018] The beneficial effects of this invention are as follows: when the traction rope becomes slack or breaks, the movable block moves downward with the clamping block, and the fixed rope comes into contact with the clamping state between the first clamping groove and the second clamping groove. The seawater causes the warning float to swing, causing the fixed rope to detach from the clamping box. The warning float rises to the sea surface and is detected, thus achieving the warning effect. This solves the problem that when the cable becomes slack or breaks, it is difficult for staff to detect it in time. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the connecting rod of the present invention;

[0021] Figure 3 This is a schematic diagram of the early warning box of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of the clamping block before assembly.

[0023] In the diagram: 1-Torsion rope; 2-Semi-submersible foundation; 3-Warning box; 4-First fixing block; 5-Connecting rod; 6-Stirrup; 7-Sleeve; 8-Second fixing block; 9-Modible block; 10-Clamping block; 11-Limiting block; 12-First clamping groove; 13-Clamping box; 14-Reset spring; 15-Buffer pad; 16-Limiting rod; 17-Fixing rope; 18-Warning buoy; 19-Warning block; 20-Tension gauge; 21-Second clamping groove. Detailed Implementation

[0024] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.

[0025] like Figures 1 to 4 As shown.

[0026] This application discloses a smart fault early warning device for a floating semi-submersible offshore wind turbine foundation, comprising:

[0027] A warning box 3 is fixedly connected to a first fixing block 4 at its bottom. Multiple first fixing blocks 4 are arranged in a circular array. Connecting rods 5 are fixed to the bottom of the first fixing blocks 4, and these connecting rods 5 are also arranged in a circular array, with each connecting rod 5 corresponding to one first fixing block 4. Stirrups 6 are fixed to the outer walls of the multiple connecting rods 5, and the stirrups 6 are sized to correspond to the connecting rods 5. The installation assembly, consisting of the first fixing blocks 4, connecting rods 5, and stirrups 6, fixes the warning box 3 to the seabed foundation. The bottoms of the multiple connecting rods 5 are curved, allowing for a more secure connection to the steel reinforcement structure of the seabed foundation. The stirrups 6 fixed to the side walls of the multiple connecting rods 5 increase the contact area between the installation structure and the concrete. The first fixing blocks 4, fixed between the warning box 3 and the connecting rods 5, enhance the connection strength between the connecting rods 5 and the warning box 3. This step, by setting the first fixing blocks 4, connecting rods 5, and stirrups 6, connects the device to the seabed foundation, thus completing the fixation of the device. This helps prevent the device from falling off under the action of the traction rope 1, improving the stability and practicality of the device.

[0028] Inside the warning box 3, a movable block 9 is slidably installed. The movable block 9 is connected to a traction rope 1. The traction rope 1 passes through the warning box 3 and is connected to the semi-submersible foundation 2 via a tension gauge 20. The tension gauge 20 continuously monitors the tension on the traction rope 1. Whenever the warning float 18 floats out, the fault condition of the foundation can be determined by checking the value of the tension gauge 20. This step, by setting the tension gauge 20 in conjunction with the warning float 18 to provide early warning of faults in the semi-submersible foundation of offshore wind power, improves the flexibility and practicality of the device, helps to reduce misjudgments, and saves manpower.

[0029] The traction rope 1 is connected to the movable block 9 via the second fixed block 8. A clamping block 10 is fixed to the side wall of the movable block 9. The warning box 3 is provided with a groove to accommodate the clamping block 10. The clamping block 10 is provided with a first clamping groove 12. A clamping box 13 is fixed to the side wall of the warning box 3. The clamping box 13 is provided with a second clamping groove 21. It also includes a fixing rope 17, which corresponds to the size of the first clamping groove 12 and the second clamping groove 21. The clamping block 10 is pulled up by the traction rope 1, and the fixing rope 17 is clamped in the first clamping groove 12 and the second clamping groove 21. A warning float 18 is fixed to the top of the fixing rope 17.

[0030] When the traction rope 1 becomes slack or breaks, the movable block 9 moves downward with the clamping block 10, and the fixed rope 17 comes into contact with the clamping state between the first clamping groove 12 and the second clamping groove 21. The seawater causes the warning float 18 to swing, causing the fixed rope 17 to detach from the clamping box 13. The warning float 18 rises to the sea surface and is detected, thus achieving the warning effect. This solves the problem that when the cable becomes slack or breaks, it is difficult for staff to detect it in time.

[0031] The warning buoy 18 is fixed to the top of a warning block 19, which contains a smoke emitter and a warning signal light. During operation, whenever the warning buoy 18 reaches the water surface under its own buoyancy, the smoke emitter inside the warning block 19 will emit smoke, and the warning signal light fixed to the top of the warning block 19 will illuminate simultaneously. This step, by simultaneously setting up the smoke emitter and the warning signal light, provides early warning of faults in the semi-submersible floating foundation of offshore wind power, improving its applicability at night.

[0032] The bottom of the movable block 9 is fixedly connected to the warning box 3 by a return spring 14. The return spring 14 provides downward pulling force to the movable block 9 so as to better overcome seawater.

[0033] A limiting block 11 is fixed to the side of the movable block 9 relative to the clamping block 10, and the limiting block 11 is set to correspond to the size of the clamping block 10. Two opposing limiting rods 16 are fixedly connected inside the warning box 3, and the two limiting rods 16 are slidably engaged with the clamping block 10 and the limiting block 11. The inner wall of the warning box 3 is provided with a sliding groove for the limiting block 11 to slide up and down. When the movable block 9 slides up and down inside the warning box 3, the clamping block 10 and the limiting block 11 slide on the limiting rods 16 to provide guidance and prevent shaking, effectively maintaining the movement posture.

[0034] Buffer pads 15 are installed at two locations inside the warning box 3 corresponding to the clamping block 10 and the limiting block 11. The buffer pads 15 have through grooves for the limiting rod 16 to pass through without contact. The buffer pads 15 contact the top surfaces of the clamping block 10 and the limiting block 11 with the warning box 3, and provide cushioning between the clamping block 10, the limiting block 11 and the warning box 3.

[0035] The top of the warning box 3 is equipped with a sleeve 7, and the traction rope 1 passes through the sleeve 7 at the top of the warning box 3, which avoids direct hard contact between the traction rope 1 and the warning box 3 and reduces wear.

[0036] Working principle: When in use, whenever the traction rope 1 connecting the semi-submersible base 2 and the warning box 3 becomes slack or breaks, the second fixed block 8 and the movable block 9 will lose the tension from the traction rope 1. The return spring 14 will drive the second fixed block 8 and the movable block 9 to move inside the slide groove through its own rebound. With the movement of the movable block 9, the clamping block 10 fixed to the side wall of the movable block 9 will move synchronously. The fixed rope 17 will lose the clamping of the first clamping groove 12 and the second clamping groove 21. The seawater will swing the warning float 18, causing the fixed rope 17 to detach from the clamping box 13, and the warning float 18 will float up. When the warning float 18 reaches the water surface under its own buoyancy, the smoke emitter inside the warning block 19 will emit smoke, and the warning signal light fixed to the top of the warning block 19 will light up simultaneously. The tension gauge 20 fixed between the towing rope 1 and the semi-submersible foundation 2 will continuously monitor the tension on the towing rope 1. Whenever the warning float 18 floats out of the water, the staff can judge the fault condition of the foundation by checking the value of the tension gauge 20. The sleeve 7 set between the towing rope 1 and the warning box 3 avoids direct contact between the towing rope 1 and the warning box 3, thereby reducing the friction between the components.

Claims

1. A smart fault early warning device for a floating semi-submersible offshore wind turbine foundation, characterized in that, include: A warning device that can provide early warning of slackness or breakage of the traction rope (1); The early warning device includes an early warning box (3) that is fixedly installed on the seabed during construction; The warning box (3) has a movable block (9) that can be slidably installed inside. The movable block (9) is connected to a traction rope (1). The traction rope (1) passes through the warning box (3) and is then connected to a semi-submersible foundation (2). A clamping block (10) is fixed to the side wall of the movable block (9). The warning box (3) is provided with a groove to accommodate the clamping block (10). The clamping block (10) is provided with a first clamping groove (12). A clamping box (13) is fixed to the side wall of the warning box (3). The clamping box (13) is provided with a second clamping groove (21). It also includes a fixing rope (17). The fixing rope (17) corresponds to the size of the first clamping groove (12) and the second clamping groove (21). The clamping block (10) is pulled up by the traction rope (1). The fixing rope (17) is clamped in the first clamping groove (12) and the second clamping groove (21). A warning float (18) is fixed to the top of the fixing rope (17). The bottom of the movable block (9) is fixedly connected to the warning box (3) by a reset spring (14).

2. The intelligent fault early warning device for floating offshore wind turbine semi-submersible foundations as described in claim 1, characterized in that: The bottom of the warning box (3) is fixedly connected to a first fixing block (4); the first fixing block (4) consists of multiple blocks arranged in a circular array; the bottom of the first fixing block (4) is fixed with a connecting rod (5), the connecting rod (5) consists of multiple blocks arranged in a circular array, each connecting rod (5) corresponds to one first fixing block (4); the outer walls of the multiple connecting rods (5) are fixed with stirrups (6).

3. The intelligent fault early warning device for floating offshore wind turbine semi-submersible foundations as described in claim 1, characterized in that: The traction rope (1) passes through the warning box (3) and is then connected to the semi-submersible foundation (2) via the tension gauge (20); the traction rope (1) is fixedly connected to the movable block (9) via the second fixed block (8).

4. The intelligent fault early warning device for floating offshore wind turbine semi-submersible foundations as described in claim 1, characterized in that: The warning float (18) is fixed with a warning block (19) at the top. The warning block (19) is equipped with a smoke emitter inside and a warning signal light is fixed at the top of the warning block (19).

5. The intelligent fault early warning device for floating offshore wind turbine semi-submersible foundations as described in claim 1, characterized in that: A limiting block (11) is fixed on the side of the movable block (9) relative to the clamping block (10), and the limiting block (11) is set to the size of the clamping block (10); two opposing limiting rods (16) are fixedly connected inside the warning box (3), and the two limiting rods (16) can slide with the clamping block (10) and the limiting block (11); the inner wall of the warning box (3) is provided with a sliding groove for the limiting block (11) to slide up and down.

6. The intelligent fault early warning device for floating offshore wind turbine semi-submersible foundations as described in claim 5, characterized in that: Two buffer pads (15) are installed in the warning box (3) corresponding to the clamping block (10) and the limiting block (11). The buffer pads (15) are provided with through grooves so that the limiting rod (16) can pass through without contact.

7. The intelligent fault early warning device for floating offshore wind turbine semi-submersible foundations as described in claim 5, characterized in that: The warning box (3) is equipped with a sleeve (7) on the top, and the traction rope (1) passes through the sleeve (7) on the top of the warning box (3).

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