A self-stabilizing floating support assembly and offshore wind power system

Abstract

The application discloses a self-stabilizing floating type supporting assembly and offshore wind power system, and relates to the field of ocean engineering equipment.The supporting assembly comprises a floating box, a vertical damping assembly and a multi-ring stabilizing assembly.The multi-ring stabilizing assembly comprises an outer supporting ring, an outer supporting bracket, an inner supporting ring and an inner pin shaft.The outer supporting bracket is located on the symmetric axis of the outer supporting ring, the inner pin shaft is located on the symmetric axis of the inner supporting ring, and the installation direction of the outer supporting bracket is perpendicular to the installation direction of the inner pin shaft.The vertical damping assembly comprises a parallelogram articulated frame and a tension spring.The vertical damping assembly is symmetrically arranged in pairs.The outer side of the parallelogram articulated frame is rigidly connected to the inner side wall of the floating box, the inner side top end of the parallelogram articulated frame is hingedly supported on the bottom surface of the outer supporting ring of the multi-ring stabilizing assembly, one end of the tension spring is hingedly connected to the midpoint of the outer supporting ring of the multi-ring stabilizing assembly, and the other end of the tension spring is hingedly connected to the midpoint of the inner side surface of the floating box.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of offshore engineering equipment, in particular to a self-stabilizing floating support assembly and offshore wind power system. BACKGROUND

[0002] The offshore wind power system mainly adopts deep foundation type or floating foundation structure, the construction cost and difficulty of the underwater foundation of the deep foundation type offshore wind power system are extremely great, and the floating offshore wind power system mainly adopts a vertical tower to support the upper fan, and the vertical and horizontal swinging effects of the floating foundation caused by ocean waves need to be considered and controlled in the design, the swinging of the tower directly affects the operation stability and efficiency of the fan, and seriously affects the safety of the fan. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a self-stabilizing floating support assembly and offshore wind power system for the background needs and technical difficulties in the background technology, the present application realizes vertical vibration reduction and swing effect reduction through double component design, provides stable vertical supporting force for the wind power tower, and realizes self-stabilization of the offshore wind power system.

[0004] The technical scheme adopted by the present application to solve the technical problem is: a self-stabilizing floating support assembly, comprising a floating box, a vertical vibration reduction assembly and a multi-ring stabilizing assembly; the multi-ring stabilizing assembly comprises an outer supporting ring, an outer supporting bracket, an inner supporting ring and an inner pin shaft, the outer supporting bracket is located on the symmetry axis of the outer supporting ring, the inner pin shaft is located on the symmetry axis of the inner supporting ring, and the installation direction of the outer supporting bracket is perpendicular to the installation direction of the inner pin shaft; the vertical vibration reduction assembly comprises a parallelogram articulated frame and a tension spring, the parallelogram articulated frame has two groups and is arranged in parallel, the tension spring is located between the two groups of parallelogram articulated frames, the vertical vibration reduction assembly is symmetrically arranged in pairs, the outer side of the parallelogram articulated frame is rigidly connected with the inner side wall of the floating box, the inner side top end of the parallelogram articulated frame is hingedly supported on the bottom surface of the outer supporting ring of the multi-ring stabilizing assembly, one end of the tension spring is hingedly connected to the midpoint position of the outer supporting ring of the multi-ring stabilizing assembly, and the other end is hingedly connected to the midpoint position of the inner side surface of the floating box.

[0005] Further, the floating box can adopt a block type or an integral ring type, when the block type is adopted, the floating boxes are preferably connected by a traction cable.

[0006] Further, the parallelogram articulated frame comprises an outer vertical rod, an inclined rod and an inner vertical rod, the outer vertical rod and the inner vertical rod are of the same length, and the outer vertical rod, the inner vertical rod and the inclined rod are hingedly connected through a pin shaft to form a parallelogram mechanism with variable shape.

[0007] Further, the outer support ring and the inner support ring can be square, rectangular or annular, made of rigid materials such as concrete or steel, and the outer support and the inner pin shaft are made of steel to ensure sufficient strength and rigidity.

[0008] Further, the outer support can be fixed or embedded. In the fixed structure, the outer support is fixed inside the outer support ring, the inner support ring has a through hole at the corresponding position, and the outer support is sleeved into the through hole of the inner support ring to realize the pin shaft type rotary connection. In the embedded structure, the outer support ring and the inner support ring are both provided with through holes, and the outer support is a rigid pin shaft structure which is inserted into the through holes of the outer support ring and the inner support ring to realize the pin shaft type rotary connection.

[0009] Further, the inner pin shaft is a rigid through pin shaft fixed on the inner support ring.

[0010] The application also provides a marine wind power system comprising the self-stabilizing floating support assembly, which comprises a wind turbine, a tower, the self-stabilizing floating support assembly, a floating box mooring cable and a tower mooring cable. The middle section of the tower is supported on the inner pin shaft of the self-stabilizing floating support assembly, the lower end of the tower is anchored to the seabed through the tower mooring cable, the floating box of the self-stabilizing floating support assembly is anchored to the seabed through the floating box mooring cable, and the wind turbine is installed on the top of the tower.

[0011] Further, the middle section of the tower is provided with a through hole with an inner diameter 5-10 mm larger than that of the inner pin shaft to meet the construction tolerance of large-size components and the rotary connection of the tower.

[0012] Compared with the prior art, the application has the following advantages:

[0013] The application reduces the up-down floating and swinging effect of the filtering floating box caused by the sea waves through the deformable and rotatable assembly device. Specifically, the up-down floating of the floating box caused by the sea waves is reduced in the first stage through the deformation of the vertical damping assembly and the stretching and contraction of the tension spring, the swinging effect of the up-down displacement of the floating box is reduced in the second stage through the rotation of the inner support ring and the outer support ring of the multi-ring stabilizing assembly around two mutually perpendicular axes, the inner pin shaft remains horizontal and stably supports the tower without additional active control, and the stability of the marine wind power system is realized. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 Fig. 1 is a structural schematic diagram of a marine wind power system according to the application;

[0015] Figure 2 Fig. 2 is a structural schematic diagram of a self-stabilizing floating support assembly according to the application;

[0016] Figure 3Figure 1 is a schematic diagram of deformation of the self-stabilized floating support assembly under mispositioned swing of the pontoon;

[0017] Figure 4 Figure 2 is a schematic diagram of the self-stabilized floating support assembly under mispositioned swing of the pontoon;

[0018] Figure 5 Figure 3 is a schematic diagram of the outer support ring structure with fixed inner support;

[0019] Figure 6 Figure 4 is a schematic diagram of the inner support ring structure with fixed inner support;

[0020] Figure 7 Figure 5 is a schematic diagram of the tower after pre-installing the inner support ring;

[0021] Figure 1 is a schematic diagram of deformation of the self-stabilized floating support assembly under mispositioned swing of the pontoon; DETAILED DESCRIPTION

[0022] The technical solutions of the present application will be described clearly and completely below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only some of the embodiments, but not all the embodiments. Based on the embodiments, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0023] Reference Figures 1 to 7This embodiment provides a self-stabilizing floating support assembly 3, including a float 31, a vertical vibration damping assembly, and a multi-ring stabilizing assembly. The multi-ring stabilizing assembly includes an outer support ring 32, an outer support 321, an inner support ring 33, and an inner pin 34. The outer support 321 is located on the axis of symmetry of the outer support ring 32, and the inner pin 34 is located on the axis of symmetry of the inner support ring 33. The installation direction of the outer support 321 is perpendicular to the installation direction of the inner pin 34. The vertical vibration damping assembly includes a parallelogram hinge frame 35 and a tension spring 36. There are two sets of parallelogram hinge frames 35, which are arranged in parallel relative to each other. The tension spring 36 is located between the two sets of parallelogram hinge frames 35. The vertical vibration damping components are arranged in pairs symmetrically. The outer side of the parallelogram hinge frame 35 is rigidly connected to the inner wall of the float box 31. The top inner side of the parallelogram hinge frame 35 is hinged and supported on the bottom surface of the outer support ring 32 of the multi-ring stabilizing component. One end of the tension spring 36 is hinged to the midpoint of the outer support ring 32 of the multi-ring stabilizing component, and the other end is hinged to the midpoint of the inner side of the float box 31.

[0024] Specifically, the pontoon 31 is a segmented type, with adjacent pontoons 31 connected by towing cables 37. Of course, the pontoon 31 can also be a single ring type.

[0025] Specifically, the parallelogram hinge frame 35 includes an outer vertical rod 353, a diagonal rod 351, and an inner vertical rod 352. The outer vertical rod 353 and the inner vertical rod 352 have the same length. The outer vertical rod 353, the inner vertical rod 352, and the diagonal rod 351 are hinged together by a pin to form a parallelogram mechanism with a variable shape.

[0026] Specifically, the outer support ring 32 and the inner support ring 33 are square, but they can also be designed as rectangular or annular. The outer support ring 32 and the inner support ring 33 are made of rigid materials such as concrete or steel, while the outer support 321 and the inner pin 34 are made of steel to ensure sufficient strength and rigidity.

[0027] Specifically, the outer support 321 can adopt a fixed or embedded structure. For the fixed structure, refer to... Figure 5 and Figure 6 The outer support 321 is fixed to the inner side of the outer support ring 32, and the inner support ring 33 has a through hole 331 at the corresponding position. The outer support 321 is fitted into the through hole 331 on the inner support ring 33 to achieve a pin-type rotatable connection.

[0028] In the embedded structure, both the outer support ring 32 and the inner support ring 33 have through holes 331. The outer support 321 is a rigid pin structure, which is inserted into the through holes 331 of the outer support ring 32 and the inner support ring 33 to achieve a pin-type rotatable connection.

[0029] Specifically, the inner pin shaft 34 is a rigid through pin shaft fixed on the inner supporting ring 33.

[0030] The embodiment also provides an offshore wind power system comprising the self-stabilized floating supporting assembly, which comprises a wind turbine 1, a tower 2, the self-stabilized floating supporting assembly 3, a floating box mooring cable 4 and a tower mooring cable 5; the middle section of the tower 2 is supported on the inner pin shaft 34 of the self-stabilized floating supporting assembly 3, the lower end of the tower 2 is anchored to the seabed through the tower mooring cable 5, the floating box 31 of the self-stabilized floating supporting assembly 3 is anchored to the seabed through the floating box mooring cable 4, and the wind turbine 1 is installed on the top of the tower 2.

[0031] Specifically, the middle section of the tower 2 is provided with a reserved through hole, and the inner diameter of the through hole is 5-10 mm larger than that of the inner pin shaft 34, so as to meet the construction tolerance of the large-size component and the rotatable connection of the tower 2.

[0032] The embodiment also provides an installation method of the offshore wind power system, and the specific steps are as follows:

[0033] (1) The inner pin shaft 34 and the inner supporting ring 33 are pre-installed with the tower 2 in a factory;

[0034] (2) The floating blocks are installed and connected with the outer vertical rods 353 and the pulling springs 36 of the vertical damping assembly;

[0035] (3) The floating blocks are shipped to an installation position, the traction ropes 37 between the floating blocks are installed, and the positions of the floating blocks are temporarily fixed;

[0036] (4) The outer supporting ring 32 of the multi-ring stabilizing assembly is connected with the inner vertical rods 352 of the vertical damping assembly;

[0037] (5) The tower 2 is hoisted and positioned, and the inner supporting ring 33 is connected with the outer supporting ring 32;

[0038] (6) The floating box mooring cable 4 and the tower mooring cable 5 are installed;

[0039] (7) The wind turbine 1 is installed on the top of the tower 2.

[0040] The embodiment can reduce the up-down floating and swinging effect of the filtering floating box 31 by means of the deformable and rotatable assembly device, the up-down floating of the floating box 31 driven by the sea waves is reduced in the first stage by the deformation of the vertical damping assembly and the stretching and contraction of the pulling spring 36, the swinging effect of the up-down displacement of the floating box 31 is reduced in the second stage by the rotation of the inner supporting ring 33 and the outer supporting ring 32 of the multi-ring stabilizing assembly around two mutually perpendicular axes, the inner pin shaft 34 remains horizontal and stably supports the tower 2, and the stability of the offshore wind power system can be realized without additional active control.

[0041] Although the above describes the preferred embodiments of the present application, the present application is not limited to the above-described specific embodiments, and the above-described specific embodiments are merely illustrative, but not restrictive, and those skilled in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, which all belong to the protection scope of the present application.

Claims

1. A self-stabilizing floating support assembly, characterized by: The application relates to a floating wind turbine, which comprises a floating box, a vertical damping assembly and a multi-ring stabilizing assembly; the multi-ring stabilizing assembly comprises an outer supporting ring, an outer supporting bracket, an inner supporting ring and an inner pin shaft, the outer supporting bracket is located on the symmetric axis of the outer supporting ring, the inner pin shaft is located on the symmetric axis of the inner supporting ring, the mounting direction of the outer supporting bracket is perpendicular to the mounting direction of the inner pin shaft; the vertical damping assembly comprises parallelogram hinged frames and a pulling spring, the parallelogram hinged frames are arranged in two groups and are arranged in parallel, the pulling spring is located between the two groups of parallelogram hinged frames, the vertical damping assembly is symmetrically arranged in pairs, the outer side of the parallelogram hinged frame is rigidly connected with the inner side wall of the floating box, the inner side top end of the parallelogram hinged frame is hingedly supported on the bottom surface of the outer supporting ring of the multi-ring stabilizing assembly, one end of the pulling spring is hingedly connected to the midpoint of the outer supporting ring of the multi-ring stabilizing assembly, and the other end of the pulling spring is hingedly connected to the midpoint of the inner side surface of the floating box.

2. The self-stabilizing floating support assembly of claim 1, wherein: The floating box adopts a block type or an integral ring type, and the floating boxes are connected through traction ropes when the block type is adopted.

3. A self-stabilizing floating support assembly according to claim 1 or 2, characterized in that: The parallelogram hinged frame comprises an outer vertical rod, an inclined rod and an inner vertical rod, the outer vertical rod and the inner vertical rod are of the same length, and the outer vertical rod, the inner vertical rod and the inclined rod are hingedly connected through a pin shaft to form a parallelogram mechanism with variable shape.

4. The self-stabilizing floating support assembly of claim 1 or 2, wherein: The outer supporting ring and the inner supporting ring are square, rectangular or ring-shaped and are made of concrete or steel, and the outer supporting bracket and the inner pin shaft are made of steel.

5. The self-stabilizing floating support assembly of claim 1 or 2, wherein: The outer supporting bracket adopts a fixed type or an embedded type structure, in the fixed type structure, the outer supporting bracket is fixed to the inner side of the outer supporting ring, a through hole is formed in the corresponding position of the inner supporting ring, the outer supporting bracket is sleeved into the through hole of the inner supporting ring to realize pin shaft type rotatable connection, in the embedded type structure, through holes are formed in the outer supporting ring and the inner supporting ring, the outer supporting bracket is a rigid pin shaft structure and is inserted into the through holes of the outer supporting ring and the inner supporting ring to realize pin shaft type rotatable connection.

6. The self-stabilizing floating support assembly of claim 1 or 2, wherein: The inner pin shaft is a rigid through pin shaft fixed to the inner supporting ring.

7. An offshore wind power system comprising the self-stabilizing floating support assembly according to any one of claims 1-6, characterized in that: The application relates to a floating wind turbine, which comprises a floating box, a vertical damping assembly and a multi-ring stabilizing assembly; the multi-ring stabilizing assembly comprises an outer supporting ring, an outer supporting bracket, an inner supporting ring and an inner pin shaft, the outer supporting bracket is located on the symmetric axis of the outer supporting ring, the inner pin shaft is located on the symmetric axis of the inner supporting ring, the mounting direction of the outer supporting bracket is perpendicular to the mounting direction of the inner pin shaft; the vertical damping assembly comprises parallelogram hinged frames and a pulling spring, the parallelogram hinged frames are arranged in two groups and are arranged in parallel, the pulling spring is located between the two groups of parallelogram hinged frames, the vertical damping assembly is symmetrically arranged in pairs, the outer side of the parallelogram hinged frame is rigidly connected with the inner side wall of the floating box, the inner side top end of the parallelogram hinged frame is hingedly supported on the bottom surface of the outer supporting ring of the multi-ring stabilizing assembly, one end of the pulling spring is hingedly connected to the midpoint of the outer supporting ring of the multi-ring stabilizing assembly, and the other end of the pulling spring is hingedly connected to the midpoint of the inner side surface of the floating box.

8. The offshore wind power system according to claim 7, characterized in that: The outer supporting ring and the inner supporting ring are square, rectangular or ring-shaped and are made of concrete or steel, and the outer supporting bracket and the inner pin shaft are made of steel. The outer supporting bracket adopts a fixed type or an embedded type structure, in the fixed type structure, the outer supporting bracket is fixed to the inner side of the outer supporting ring, a through hole is formed in the corresponding position of the inner supporting ring, the outer supporting bracket is sleeved into the through hole of the inner supporting ring to realize pin shaft type rotatable connection, in the embedded type structure, through holes are formed in the outer supporting ring and the inner supporting ring, the outer supporting bracket is a rigid pin shaft structure and is inserted into the through holes of the outer supporting ring and the inner supporting ring to realize pin shaft type rotatable connection. The inner pin shaft is a rigid through pin shaft fixed to the inner supporting ring. The application relates to a floating wind turbine, which comprises a floating box, a vertical damping assembly and a multi-ring stabilizing assembly; the multi-ring stabilizing assembly comprises an outer supporting ring, an outer supporting bracket, an inner supporting ring and an inner pin shaft, the outer supporting bracket is located on the symmetric axis of the outer supporting ring, the inner pin shaft is located on the symmetric axis of the inner supporting ring, the mounting direction of the outer supporting bracket is perpendicular to the mounting direction of the inner pin shaft; the vertical damping assembly comprises parallelogram hinged frames and a pulling spring, the parallelogram hinged frames are arranged in two groups and are arranged in parallel, the pulling spring is located between the two groups of parallelogram hinged frames, the vertical damping assembly is symmetrically arranged in pairs, the outer side of the parallelogram hinged frame is rigidly connected with the inner side wall of the floating box, the inner side top end of the parallelogram hinged frame is hingedly supported on the bottom surface of the outer supporting ring of the multi-ring stabilizing assembly, one end of the pulling spring is hingedly connected to the midpoint of the outer supporting ring of the multi-ring stabilizing assembly, and the other end of the pulling spring is hingedly connected to the midpoint of the inner side surface of the floating box. The outer supporting ring and the inner supporting ring are square, rectangular or ring-shaped and are made of concrete or steel, and the outer supporting bracket and the inner pin shaft are made of steel. The outer supporting bracket adopts a fixed type or an embedded type structure, in the fixed type structure, the outer supporting bracket is fixed to the inner side of the outer supporting ring, a through hole is formed in the corresponding position of the inner supporting ring, the outer supporting bracket is sleeved into the through hole of the inner supporting ring to realize pin shaft type rotatable connection, in the embedded type structure, through holes are formed in the outer supporting ring and the inner supporting ring, the outer supporting bracket is a rigid pin shaft structure and is inserted into the through holes of the outer supporting ring and the inner supporting ring to realize pin shaft type rotatable connection. The inner pin shaft is a rigid through pin shaft fixed to the inner supporting ring. The application relates to a floating wind turbine, which comprises a floating box, a vertical damping assembly and a multi-ring stabilizing assembly; the multi-ring stabilizing assembly comprises an outer supporting ring, an outer supporting bracket, an inner supporting ring and an inner pin shaft, the outer supporting bracket is located on the symmetric axis of the outer supporting ring, the inner pin shaft is located on the symmetric axis of the inner supporting ring, the mounting direction of the outer supporting bracket is perpendicular to the mounting direction of the inner pin shaft; the vertical damping assembly comprises parallelogram hinged frames and a pulling spring, the parallelogram hinged frames are arranged in two groups and are arranged in parallel, the pulling spring is located between the two groups of parallelogram hinged frames, the vertical damping assembly is symmetrically arranged in pairs, the outer side of the parallelogram hinged frame is rigidly connected with the inner side wall of the floating box, the inner side top end of the parallelogram hinged frame is hingedly supported on the bottom surface of the outer supporting ring of the multi-ring stabilizing assembly, one end of the pulling spring is hingedly connected to the midpoint of the outer supporting ring of the multi-ring stabilizing assembly, and the other end of the pulling spring is hingedly connected to the midpoint of the inner side surface of the floating box. The outer supporting ring and the inner supporting ring are square, rectangular or ring-shaped and are made of concrete or steel, and the outer supporting bracket and the inner pin shaft are made of steel. The outer supporting bracket adopts a fixed type or an embedded type structure, in the fixed type structure, the outer supporting bracket is fixed to the inner side of the outer supporting ring, a through hole is formed in the corresponding position of the inner supporting ring, the outer supporting bracket is sleeved into the through hole of the inner supporting ring to realize pin shaft type rotatable connection, in the embedded type structure, through holes are formed in the outer supporting ring and the inner supporting ring, the outer supporting bracket is a rigid pin shaft structure and is inserted into the through holes of the outer supporting ring and the inner supporting ring to realize pin shaft type rotatable connection. The inner pin shaft is a rigid through pin shaft fixed to the inner supporting ring. The application relates to a floating wind turbine, which comprises a floating box, a vertical damping assembly and a multi-ring stabilizing assembly; the multi-ring stabilizing assembly comprises an outer supporting ring, an outer supporting bracket, an inner supporting ring and an inner pin shaft, the outer supporting bracket is located on the symmetric axis of the outer supporting

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