CN110775215A - Semi-submersible platform-wind turbine double-body modularized floating integrated system and using method thereof - Google Patents
Semi-submersible platform-wind turbine double-body modularized floating integrated system and using method thereof Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/30—Wind motors specially adapted for installation in particular locations
- F03D9/32—Wind motors specially adapted for installation in particular locations on moving objects, e.g. vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/442—Spar-type semi-submersible structures, i.e. shaped as single slender, e.g. substantially cylindrical or trussed vertical bodies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/446—Floating structures carrying electric power plants for converting wind energy into electric energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
A semi-submersible platform-wind turbine double-body modularized floating integrated system and a using method thereof belong to the field of ocean energy utilization. The semi-submersible platform module is provided with a sleeve with the inner diameter larger than the outer diameter of the wind turbine module tower at the center, the sleeve is internally provided with a plurality of vertical layers of wind turbine tower clamping devices which are symmetrically distributed, the rubber plug extends to the wind turbine tower in a gear driving mode, and the wind turbine tower and the semi-submersible platform are clamped and butted, so that the relative movement of the wind turbine module and the semi-submersible platform module is limited. The semi-submersible platform and the wind turbine module have respective buoyancy equal to the gravity of the self-structure, have self-balance performance, can improve the fault tolerance performance of the floating offshore wind turbine in the vertical butt joint installation/disassembly and removal process, improve the safety of the installation and removal process and reduce the related cost, and the semi-submersible platform is made of the fatigue-resistant corrosion-resistant FRP material and can provide full-life service support for two large offshore wind turbines.
Description
Technical Field
The invention belongs to the field of ocean energy utilization, relates to the technologies of design, installation, operation and maintenance, removal and the like of the whole life cycle of a semi-submersible wind turbine structure, and provides a semi-submersible platform-wind turbine double-body modularized floating integrated system and a using method thereof.
Background
In recent years, due to problems such as global environmental deterioration and energy crisis, various countries in the world have been focusing on the development of offshore wind energy, and it is intended to improve energy structures by building offshore wind farms. Offshore wind energy resources are abundant, and compared with onshore wind power, offshore wind turbines are more stable, so that in recent years, research and construction of offshore wind turbines are continuously strengthened in various countries. However, for norway, the united states, china and other countries, the huge potential of offshore wind resources is mainly in deep water areas with water depth greater than 50m, and compared with floating offshore wind turbines, the construction cost of fixed offshore wind turbines becomes huge with the increase of water depth, so that the floating wind turbines have more development prospects in deep water areas. The floating wind turbine can be divided into a tension leg type, a Spar type, a semi-submersible type and the like according to the basic form, wherein the semi-submersible type floating wind turbine has the advantages of good stability, wide applicable water depth range, convenience in construction and transportation and the like. The safety and the convenience of the installation of the floating offshore wind turbine are key factors which restrict the development of the floating offshore wind turbine.
In the prior art, the installation method of the offshore wind turbine mainly comprises split installation and integral installation: the split installation is that a movable self-lifting platform provided with hydraulic support legs is used to complete the sectional type lifting of the wind turbine; the integral installation is that the integral assembly of the wind turbine is firstly completed on the land, and the integral hoisting of the wind turbine is completed by using a large-scale floating crane.
The defects of the prior art are as follows: the installation of an offshore wind turbine needs to realize the butt joint of a wind turbine tower and a tower drum on an offshore base, and the collision damage in the installation process needs to be avoided to the utmost extent while the butt joint accuracy is ensured. When the split installation method is adopted, the floating platform base is very easy to move greatly due to the influence of sea storms, so that the butt joint difficulty is further increased. When the integral installation method is adopted, the requirement on marine transportation is high, a transport ship with higher bearing capacity is needed, and better stability is needed to be maintained in the transportation process, so that the damage of the integral structure is avoided. At present, a floating platform offshore wind turbine modular combination system which can be conveniently assembled and disassembled and has good compatibility is very lacking.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a semi-submersible wind turbine modular integrated system, which adopts the modular concept of easy construction, installation and disassembly and good compatibility, and divides a semi-submersible platform and a wind turbine into two self-balancing main modules which are easy to combine and disassemble by arranging a platform-wind turbine tower frame clamping device in the semi-submersible platform, thereby reducing the difficulty of loading, unloading and replacing the semi-submersible wind turbine platform on the sea, improving the stress performance of the semi-submersible wind turbine platform and reducing the installation and removal cost of the whole structure.
In order to achieve the purpose, the invention adopts the technical scheme that:
a semi-submersible platform-wind turbine double-body modularized floating integrated system comprises a wind turbine module 1, a semi-submersible platform module 2, an anchor chain system 3 and a plurality of platform-wind turbine tower clamping devices.
The wind turbine module 1 has the buoyancy self-balancing characteristic, and after the wind turbine module 1 is placed in water, the self-buoyancy force of the wind turbine module 1 is equal to the self-structural gravity of the wind turbine module, so that self-gravity and buoyancy self-balancing can be realized. The semi-submersible platform module 2 has a buoyancy self-balancing characteristic, after the semi-submersible platform module is placed in water, the self-buoyancy of the semi-submersible platform module 2 is equal to the self-structural gravity of the semi-submersible platform module, self-gravity and buoyancy self-balancing can be achieved, a wind turbine sleeve is arranged in the center of the semi-submersible platform module 2, the inner diameter of the wind turbine sleeve is slightly larger than the outer diameter (such as 1m) of the wind turbine module 1, and the bottom of the wind turbine module 1 can penetrate through the wind turbine sleeve to enter. The platform-wind turbine tower clamping devices are vertically and symmetrically distributed in the wind turbine sleeve at the center of the semi-submersible platform module 2 in multiple layers, and the platform-wind turbine tower clamping devices are the same in structural size, can work cooperatively and are convenient to maintain. The anchor chain system 3 comprises a plurality of symmetrically distributed anchor chains, the upper ends of the anchor chains are anchored below the semi-submersible platform module 2, and the lower ends of the anchor chains are fixed on the seabed and used for limiting the motion response of the semi-submersible platform module.
The platform-wind turbine tower clamping device comprises a rubber plug 4, a fiber composite material pad 5 with corrosion resistance and high friction coefficient and a gear transmission structure. The fiber composite material pad 5 is fixed on the outer side surface of one end of the rubber plug 4, so that the clamping effect of the semi-submersible platform and the fan structure is facilitated; the rubber stopper 4 is embedded into the sleeve of the wind turbine at the center of the semi-submersible platform module 2 and can slide along the diameter direction of the sleeve of the wind turbine at the center of the semi-submersible platform module 2. The gear transmission structure comprises a gear structure 6, a cam 7, a driving shaft 8, a rack 9, a horizontal rod 10 and a stop block 11; horizontal pole 10 one end and rubber buffer 4's other end rigid coupling, the other end is equipped with rack 9, rack 9 is connected with the meshing of gear structure 6, 9 length of rack satisfy: the gear structure 6 can rotate one turn on the rack 9; the gear structure 6 and the cam 7 are both fixed on the driving shaft 8 and can rotate along with the driving shaft 8, the gear structure 6 can just rotate between the bottom of the stop block 11 and the rack 9, the cam 7 is positioned on one side of the gear structure 6 and can be contacted with the stop block 11 in the rotating process; the axis position of the driving shaft 8 is fixed, and the driving shaft is driven to rotate around the axis by an engine; the top end of the stop block 11 is fixed inside the semi-submersible platform module 2 and arranged above the rack 9, and the cam 7 can be contacted with the stop block 11 after rotating to a certain position to lock the position of the gear structure 6.
Furthermore, the semi-submersible platform module 2 and the anchor chain are made of Fiber Reinforced Plastic (FRP) or common steel, and the Fiber Reinforced Plastic (FRP) has the advantages of corrosion resistance and fatigue resistance, and is favorable for the long-life design of the semi-submersible platform.
Further, the bottom of the wind turbine module 1 is located in a corresponding clamping area in a wind turbine sleeve to be subjected to structural reinforcement treatment.
A use method of a semi-submersible platform-wind turbine double-body modularized floating integrated system comprises the following steps:
when the wind turbine module 1 is installed, the wind turbine module 1 is integrally hung into a central wind turbine sleeve of the semi-submersible platform module 2 through equipment; after the wind turbine module 1 is self-balanced in water, the driving shaft 8 of each platform-wind turbine tower clamping device cooperatively rotates towards the outside of the cylinder to drive the gear structure 6 and the cam 7 to rotate around the same direction; the gear structure 6 is rotated to one side of the rack 9 far away from the rubber plug 4, the cam 7 is rotated to be contacted with the side face of the stop block 11 close to the rubber plug 4, the gear structure 6 is prevented from rotating towards the outside of the cylinder continuously through the stop block 11, the rubber plug 4 does not extend into the cylinder any more, and the clamping state is locked.
When the wind turbine module 1 is disassembled, the driving shaft 8 of each platform-wind turbine tower clamping device rotates towards the inner direction of the cylinder in cooperation with the driving shaft, the gear structure 6 and the cam 7 are driven to rotate around the same direction, the horizontal rod 10 is driven by the rack 9 meshed with the gear structure 6, the rubber plug 4 is pulled towards the outside of the cylinder, and therefore clamping constraint on the wind turbine module 1 is relieved. After the rubber buffer 4 withdraws a proper distance to the barrel, both gear structure 6 rotates to the side where rack 9 is close to rubber buffer 4, cam 7 rotates to the side contact far away from rubber buffer 4 with dog 11, prevents through baffle 11 that gear structure 6 continues to rotate to the barrel interior direction, prevents that rubber buffer 4 from continuing to slide to the barrel exterior, can conveniently hang out platform center sleeve with wind turbine module 1 through relevant lifting device this moment.
The semi-submersible wind turbine modularized integrated system provided by the invention adopts a modularized concept with easy construction, installation, disassembly and good compatibility, and divides the semi-submersible platform and the wind turbine into two self-balancing modules which are easy to combine and disassemble by arranging the sleeve and the platform-wind turbine tower clamping device at the center of the semi-submersible platform, thereby reducing the installation/removal risk and the related construction cost of the semi-submersible offshore wind turbine platform and providing a convenient technical scheme for the design, installation, operation and maintenance and removal of the offshore wind turbine; the beneficial effects are as follows:
(1) the buoyancy of the semi-submersible platform and the buoyancy of the wind turbine module are equal to the gravity of the structure of the semi-submersible platform, namely the semi-submersible platform and the buoyancy of the wind turbine module have the buoyancy self-balancing characteristic, so that the stress characteristic of the semi-submersible wind turbine platform in the installation/removal process is improved, the vertical coupling stress between the platform module and the wind turbine module is reduced, and the safety of the whole installation/removal process of the semi-submersible wind turbine platform system is improved.
(2) The design that the inner diameter of the semi-submersible platform center sleeve is slightly larger than the outer diameter of the wind turbine module tower is matched with a clamping device, so that the fault tolerance performance of the floating offshore wind turbine in the butt joint installation/disassembly and removal process is improved, the requirement on the construction precision of the butt joint structure part of the platform and the wind turbine tower is lowered, the limiting conditions on hoisting equipment and installation/removal sea conditions are lowered, and the installation and removal cost is saved.
(3) Because the platform module and the wind turbine module can be conveniently and rapidly operated in the installation and removal process by controlling the clamping state of the clamping device, the wind turbine can be conveniently removed, maintained and replaced by the wind turbine due to major faults, and other operation and maintenance operations can be conveniently carried out.
(4) As the requirement on the structural matching degree of the platform module and the wind turbine module is not high as long as the requirement that the inner diameter of the platform sleeve is properly larger than the outer diameter of the wind turbine tower is met, the combined mode can be widely applied to the modularized integration of floating platform systems of different types and different rated powers of offshore wind turbines, namely the compatibility of the same semi-submersible platform system and different wind turbine module systems is also obviously enhanced.
(5) The semi-submersible platform can adopt a structural design scheme of an anti-fatigue and anti-corrosion FRP material, the design life of the platform can reach more than 50 years, namely the design life of a full-service support monomer for two large offshore wind turbines can be generally 20-25 years, so that the structural cost of the system is saved, and the service efficiency of the platform structure is improved.
Drawings
FIG. 1 is a schematic front view of a modular integrated system of a semi-submersible wind turbine according to the present invention, wherein the thin dashed lines indicate sea level.
FIG. 2 is a schematic top view of the modular integrated semi-submersible wind turbine system of the present invention without a wind turbine.
FIG. 3(a) is a schematic front view of a wind turbine clamping device according to the present invention.
FIG. 3(b) is a schematic top view of the wind turbine clamping device of the present invention, wherein the top of the stop block 11 is fixed inside the semi-submersible platform module.
In the figure: 1, a wind turbine module; 2 a semi-submersible platform module; 3, an anchor chain system; 4, rubber stopper; 5 composite material pad; 6, a gear structure; 7, a cam; 8 driving the shaft; 9 rack bars; 10 horizontal rods; 11 stop block.
Detailed Description
The invention is further described below with reference to the following figures and specific examples.
The semi-submersible wind turbine modularized integrated system comprises a wind turbine module 1, a semi-submersible platform module 2, an anchor chain system 3 and a platform-wind turbine tower clamping device.
The self gravity and buoyancy of the wind turbine module 1 are self-balanced; the semi-submersible platform module 2 has the gravity and buoyancy self-balancing characteristic, a wind turbine sleeve is arranged at the center of the semi-submersible platform module, the inner diameter of the semi-submersible platform module is 1m larger than the outer diameter of the wind turbine module 1, and the bottom of the wind turbine module 1 can penetrate through the sleeve to enter the sea; the anchor chain system 3 comprises 6 symmetrically distributed anchor chains, the upper ends of the anchor chains are anchored below the semi-submersible platform module 2, and the lower ends of the anchor chains are fixed on the seabed and used for limiting the motion response of the semi-submersible platform module; the semi-submersible platform module and the anchor chain are made of Fiber Reinforced Plastic (FRP), and the FRP has the advantages of corrosion resistance and fatigue resistance and is beneficial to the long-life design of the semi-submersible platform.
The platform-wind turbine tower clamping devices are vertically and symmetrically distributed in the semi-submersible platform module 2 central wind turbine sleeve in multiple layers and comprise rubber plugs 4, corrosion-resistant fiber composite material pads 5 with high friction coefficients and gear transmission structures, wherein the fiber composite material pads 5 are fixed on the outer side surfaces of the rubber plugs 4, the rubber plugs 4 are embedded in the semi-submersible platform module 2 central wind turbine sleeve and can slide along the diameter direction of the platform central sleeve, and the platform-wind turbine tower clamping devices are the same in structure size and can work cooperatively; in addition, the position of the clamping area corresponding to the wind turbine module 1 is recommended to be locally reinforced, specifically, the wall thickness of the local tower structure of the wind turbine is increased, and a layer of corrosion-resistant fatigue-resistant high-performance composite fiber material is additionally arranged on the outer side of the tower.
The gear transmission structure comprises a gear structure 6, a cam 7, a driving shaft 8, a rack 9, a horizontal rod 10 and a stop block 11. Wherein the axle center position of the driving shaft 8 is fixed, the driving shaft is driven to rotate around the axle center by the engine, the gear structure 6 and the cam 7 are both fixed on the driving shaft 8 and can rotate along with the driving shaft, the gear structure 6 is meshed with the rack 9, the rack 9 is fixed at one end of the horizontal rod 10, and the other end of the horizontal rod 10 is fixedly connected with the rubber plug 4. The top end of the stop block 11 is fixed inside the semi-submersible platform module 2 and is arranged above the horizontal rod 10.
When in use:
when the wind turbine module 1 is installed, the wind turbine module 1 is hung into the central sleeve of the semi-submersible platform module 2 through equipment, after the wind turbine module 1 is self-balanced in water, the driving shaft 8 of each platform-wind turbine tower clamping device cooperatively rotates towards the outside of the cylinder to drive the gear structure 6 and the cam 7 to rotate around the same direction, then the rack 9 meshed with the gear structure 6 drives the horizontal rod 10 to push the rubber plug 4 to the cylinder center and continuously approach the wind turbine module 1 until the corrosion-resistant high-friction-coefficient fiber composite material pad 5 is in full clamping contact with the outer wall of the tower of the wind turbine module 1, so that the relative motion of the wind turbine module 1 and the semi-submersible platform 2 is limited, at the moment, the cam 7 rotates to the position in contact with the side face of the baffle 11 close to the central sleeve, and the gear structure 6 is prevented from continuously rotating towards the outside of the cylinder, so that the rubber stopper 4 is no longer extended into the barrel and the clamped state is locked.
When the wind turbine module 1 is disassembled, the driving shaft 8 of each platform-wind turbine tower clamping device rotates towards the inner direction of the cylinder in cooperation with the gear structure 6 and the cam 7 to rotate around the gear structure and the cam 7 in the same direction, then the rack 9 meshed with the gear structure 6 drives the horizontal rod 10 to pull the rubber plug 4 towards the outside of the cylinder, so that the clamping constraint on the wind turbine module 1 is relieved, after the rubber plug 4 retracts to the outside of the cylinder for a proper distance, the cam 7 rotates to a position in contact with the side face of the baffle plate 11 far away from the central sleeve, the baffle plate 11 prevents the gear structure 6 from continuously rotating towards the inner direction of the cylinder, the rubber plug 4 is prevented from continuously sliding towards the outside of the cylinder, and at the moment, the wind turbine module 1 can be conveniently lifted out.
The present invention combines the following factors:
(1) according to the water depth and the wind wave statistical characteristics of the site selection site and the construction and installation requirements, the size and the shape of the semi-submersible platform module and the main design parameters of the anchor chain are optimally selected, the offshore installation condition of the semi-submersible platform module is effectively improved, and the motion response of the semi-submersible platform module on the sea is restrained.
(2) The main design parameters of the semi-submersible platform module are combined, and the main design parameters of the type, the size, the rated power and the like of the wind machine module are optimally selected according to the wind resource characteristics of the site selection place, so that the combined structure of the wind machine module and the semi-submersible platform module is better in stress characteristic, safer and more convenient to install, and can capture more wind energy.
(3) The method is characterized in that the number and the distribution mode of the platform-wind machine tower clamping devices and the sizes and the shapes of all parts are optimized and selected according to the requirements of the stress and the movement performance of the wind machine module structure by combining main design parameters of the semi-submersible type platform module and the wind machine platform module, the control of the platform-wind machine tower clamping devices on the relative movement of the wind machine module is optimized, and the power response characteristics of the wind machine module meet the design requirements.
The construction and installation process of the semi-submersible wind turbine modular integrated system is as follows: firstly, building a semi-submersible platform and an anchor chain system according to the existing semi-submersible platform construction process; secondly, a professional construction ship is used for carrying the semi-submersible platform module 2 installed in the dock together with the anchor chain system 3 to a sea area to be installed, anchor heads are arranged at corresponding design anchor points by the aid of the anchor chain construction ship, and the tension degree of the anchor chains is adjusted to meet the design stability requirement of the semi-submersible platform, so that the anchor chain system is installed; thirdly, hoisting the wind turbine module 1 into the sleeve of the semi-submersible platform module 2 by using a professional hoisting construction ship, slowly enabling the lower structure of the wind turbine module 1 to enter the seawater, and finally enabling the wind turbine module 1 to keep basic vertical stress balance by using self-weight and buoyancy; and finally, cooperatively starting the platform-wind turbine tower clamping devices on each layer in the semi-submersible platform module 2 to successfully clamp the wind turbine module 1, namely limiting the relative motion of the wind turbine module, and finishing the construction and installation of the modular integrated system of the semi-submersible wind turbine.
The above-mentioned embodiments only express the embodiments of the present invention, but not should be understood as the limitation of the scope of the invention patent, it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the concept of the present invention, and these all fall into the protection scope of the present invention.
Claims (4)
1. A semi-submersible platform-wind turbine double-body modularized floating integrated system is characterized by comprising a wind turbine module (1), a semi-submersible platform module (2), an anchor chain system (3) and a plurality of platform-wind turbine tower clamping devices;
the wind turbine module (1) has the buoyancy self-balancing characteristic; the semi-submersible platform module (2) has the buoyancy self-balancing characteristic, a wind turbine sleeve is arranged at the center of the semi-submersible platform module, the inner diameter of the wind turbine sleeve is larger than the outer diameter of the wind turbine module (1), and the bottom of the wind turbine module (1) can penetrate through the wind turbine sleeve to enter the sea; the platform-wind turbine tower clamping devices are vertically and symmetrically distributed in the central wind turbine sleeve of the semi-submersible platform module (2) in multiple layers, and the platform-wind turbine tower clamping devices have the same structural size and can work cooperatively; the anchor chain system (3) comprises a plurality of symmetrically distributed anchor chains, the upper ends of the anchor chains are anchored below the semi-submersible platform module (2), and the lower ends of the anchor chains are fixed on the sea bottom and used for limiting the motion response of the semi-submersible platform module;
the platform-wind turbine tower clamping device comprises a rubber plug (4), a fiber composite material pad (5) with corrosion resistance and high friction coefficient and a gear transmission structure; the fiber composite material pad (5) is fixed on the outer side surface of one end of the rubber plug (4), so that the clamping effect of the semi-submersible platform and the fan structure is facilitated; the rubber plug (4) is embedded into a sleeve of a central wind turbine of the semi-submersible platform module (2) and can slide along the diameter direction of the sleeve of the central wind turbine of the semi-submersible platform module (2); the gear transmission structure comprises a gear structure (6), a cam (7), a driving shaft (8), a rack (9), a horizontal rod (10) and a stop block (11); one end of the horizontal rod (10) is fixedly connected with the other end of the rubber plug (4), a rack (9) is arranged at the other end of the horizontal rod, and the rack (9) is meshed and connected with the gear structure (6); the gear structure (6) and the cam (7) are fixed on the driving shaft (8) and rotate along with the driving shaft (8), the gear structure (6) can just rotate between the bottom of the stop block (11) and the rack (9), and the cam (7) is positioned on one side of the gear structure (6); the axis position of the driving shaft (8) is fixed, and the driving shaft is driven to rotate around the axis by an engine; the top end of the stop block (11) is fixed inside the semi-submersible platform module (2) and arranged above the rack (9), and the cam (7) is contacted with the stop block (11) after rotating to a proper position to lock the position of the gear structure (6).
2. The semi-submersible platform-wind turbine double-body modular floating integrated system as claimed in claim 1, wherein the semi-submersible platform modules (2) and the anchor chains are made of Fiber Reinforced Plastic (FRP) or common steel.
3. The semi-submersible platform-wind turbine double-body modular floating integrated system as claimed in claim 1 or 2, wherein the bottom of the wind turbine module (1) is located in a corresponding fastening area in a wind turbine sleeve for structural reinforcement.
4. The use method of the semi-submersible platform-wind turbine double-body modular floating integrated system as claimed in any one of claims 1 to 3, characterized in that:
when the wind turbine module (1) is installed, firstly, the wind turbine module (1) is integrally hung in a central wind turbine sleeve of the semi-submersible platform module (2); after the wind turbine module (1) is self-balanced in water, a driving shaft (8) of each platform-wind turbine tower clamping device cooperatively rotates towards the outside of the cylinder to drive the gear structure (6) and the cam (7) to rotate around the gear structure and the cam in the same direction; the horizontal rod (10) is driven to move through the rack (9) meshed with the gear structure (6), the rubber plug (4) is pushed to the cylinder center and continuously approaches to the wind turbine module (1) until the fiber composite material pad (5) is in full clamping contact with the outer wall of the tower of the wind turbine module (1) to limit the relative motion of the wind turbine module (1) and the semi-submersible platform module (2), at the moment, the cam (7) rotates to be in contact with the side face, close to the rubber plug (4), of the stop block (11), the gear structure (6) is prevented from continuously rotating towards the outside of the cylinder through the stop block (11), and then the rubber plug (4) does not extend into the cylinder any more and the clamping state is locked;
when the wind turbine module (1) is disassembled, a driving shaft (8) of each platform-wind turbine tower clamping device rotates towards the inner direction of the cylinder in a coordinated manner to drive the gear structure (6) and the cam (7) to rotate around the same direction, and then the horizontal rod (10) is driven to move through the rack (9) meshed with the gear structure (6), so that the rubber plug (4) is pulled out of the cylinder, and the clamping constraint on the wind turbine module (1) is relieved; after the rubber plug (4) withdraws a proper distance to the outside of the barrel, the cam (7) rotates to contact with the side face of the stop block (11) far away from the rubber plug (4), the gear structure (6) is prevented by the baffle plate (11) from rotating towards the inside of the barrel continuously, the rubber plug (4) is prevented from sliding towards the outside of the barrel continuously, and the wind turbine module (1) is lifted out of the central sleeve of the platform through the lifting device.
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| CN110775215B (en) | 2023-06-16 |
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