Fan platform and floating type offshore fan

Abstract

The invention discloses a fan platform and a floating type offshore fan, the fan platform comprises a floating type platform and an oscillating water column type wave energy power generation device, the fan platform further comprises a central stand column, and the central stand column is located in the middle of the floating type platform. The center stand column is used for installing a tower drum, a cavity is formed in the center stand column to form an air chamber of the oscillating water column type wave energy power generation device, a water chamber and an air inlet and outlet hole of the oscillating water column type wave energy power generation device are formed in the center stand column, and the water chamber and the air inlet and outlet hole are communicated with the air chamber. According to the draught fan platform, the oscillating water column type wave energy power generation device and the draught fan are integrated on the center stand column, the oscillating water column type wave energy power generation device and the floating platform are combined, and the same floating platform can capture wind energy and wave energy at the same time; the floating type offshore wind turbine with the wind turbine platform not only can utilize wind energy to generate electricity, but also can utilize wave energy to generate electricity, complementary electricity generation of the wind energy and the wave energy is achieved, and the energy utilization efficiency and the total electricity generation amount are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of new energy, in particular to a wind turbine platform and a floating offshore wind turbine. BACKGROUND

[0002] Offshore wind power has the advantages of rich wind energy resources and not occupying land space.

[0003] Traditional fixed offshore wind turbines are usually installed in shallow sea areas and fixed to the seabed by pile foundations. With the development of deep sea areas (water depth exceeding 50 meters), floating wind turbine platforms have emerged. Floating wind turbine platforms are supported by buoyancy and anchored to the seabed, and can operate stably in deep water, becoming the core technology of deep sea wind power development.

[0004] Offshore energy also includes wave energy. Oscillating water column (OWC) is a relatively mature wave energy conversion device at present.

[0005] How to realize the coordinated complementary power generation of wind energy and wave energy has become a technical problem to be solved by those skilled in the art. SUMMARY

[0006] The present application provides a wind turbine platform to realize the coordinated complementary power generation of wind energy and wave energy. The present application also provides a floating offshore wind turbine with the wind turbine platform.

[0007] In a first aspect, the present application provides a wind turbine platform, comprising a floating platform and an oscillating water column wave energy power generation device.

[0008] The floating platform comprises a central column, and a tower is installed on the central column.

[0009] A cavity is formed in the central column to form an air chamber of the oscillating water column wave energy power generation device, and a water chamber and an air inlet and outlet hole of the oscillating water column wave energy power generation device are arranged on the central column, and the water chamber and the air inlet and outlet hole are in communication with the air chamber.

[0010] The water chamber is in communication with seawater for seawater to enter and exit the air chamber. The air inlet and outlet hole is located above the sea surface for air to enter and exit the air chamber, and a turbine of the oscillating water column wave energy power generation device is arranged in the air inlet and outlet hole.

[0011] Optionally, in the wind turbine platform, the floating platform is a semi-submersible platform.

[0012] Optionally, in the wind turbine platform, the semi-submersible platform comprises:

[0013] A base, wherein the central column is installed on the base.

[0014] at least three heave plates arranged uniformly along the circumference of the base, the heave plates being arranged along the radial direction of the central column;

[0015] a float connected to the side of the heave plate away from the base.

[0016] Optionally, in the wind turbine platform described above, the base comprises a moon pool in communication with the water chamber, the moon pool being used to increase the damping of the floating platform.

[0017] Optionally, in the wind turbine platform described above, the water inlet of the water chamber is arranged on the side wall of the central column.

[0018] The water inlet and the float are distributed in a staggered manner in the circumferential direction of the central column.

[0019] Optionally, in the wind turbine platform described above, the central column is connected to the floating platform by a support column, and the space between the central column and the floating platform forms the water chamber.

[0020] The water inlet of the water chamber is formed between two adjacent support columns.

[0021] Optionally, in the wind turbine platform described above, the number of air inlet and outlet holes is at least two, and at least two air inlet and outlet holes are arranged in a spaced manner along the circumferential direction of the central column.

[0022] At least two air inlet and outlet holes are arranged in a same height or non-same height manner in the axial direction of the central column.

[0023] Optionally, in the wind turbine platform described above, the cross-sectional area of the air outlet hole gradually decreases from the end close to the air chamber to the end away from the air chamber.

[0024] Optionally, in the wind turbine platform described above, the cross-sectional area of the air outlet hole is constant from the end close to the air chamber to the end away from the air chamber.

[0025] In a second aspect, the application further provides a floating offshore wind turbine, comprising a wind turbine platform, the wind turbine platform being the wind turbine platform described in any one of the above solutions.

[0026] Further comprising a mooring cable connected to the floating platform of the wind turbine platform.

[0027] The fan platform provided by the embodiment of the application comprises a floating platform and an oscillating water column wave power generation device, further comprises a central column, the central column is located on the upper surface of the floating platform, and the central column is located in the middle of the floating platform. The central column is used for mounting a tower barrel, a cavity is formed in the central column to form an air chamber of the oscillating water column wave power generation device, and a water chamber and an air inlet and outlet hole of the oscillating water column wave power generation device are arranged on the central column, and the water chamber and the air inlet and outlet hole are in communication with the air chamber. The fan platform disclosed in the application integrates the oscillating water column wave power generation device and the fan on the central column of the floating platform, realizes the combination of the oscillating water column wave power generation device and the floating platform, and the same floating platform can capture wind energy and wave energy at the same time, that is, the floating offshore wind turbine with the fan platform can generate power by using wind energy and wave energy, realizes complementary power generation of wind energy and wave energy, and improves energy utilization efficiency and total power generation.

[0028] The application further discloses a floating offshore wind turbine, comprising a fan platform, and the fan platform is the fan platform in any one of the above solutions. Since the fan platform has the above technical effects, the floating offshore wind turbine with the fan platform also has the same technical effects, which will not be described here. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some examples or embodiments of the application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of the provided drawings, and the application can also be applied to other similar scenarios on the basis of the provided drawings. Unless it is obvious from the language environment or otherwise stated, the same reference numerals in the drawings represent the same structure or operation.

[0030] Figure 1 is a structural schematic diagram of the floating offshore wind turbine provided by the embodiment of the application;

[0031] Figure 2 is a structural schematic diagram of the fan platform provided by the embodiment of the application;

[0032] Figure 3 is a perspective view of the fan platform provided by the embodiment of the application;

[0033] Figure 4 is a side view of the fan platform provided by the embodiment of the application;

[0034] Figure 5 is a sectional schematic diagram of the fan platform provided by the embodiment of the application.

[0035] Wherein:

[0036] 1-Floating platform; 11-Center column; 12-Base; 121-Moon pool; 13-Heaving plate; 14-Buoy; 2-Oscillating water column wave energy power generation device; 21-Air chamber; 22-Water chamber; 23-Inlet and outlet holes; 3-Tower; 4-Support column; 5-Wind turbine; 6-Mooring cable. DETAILED DESCRIPTION

[0037] The present application will be further described in detail below with reference to the accompanying drawings and examples. It will be understood that the specific embodiments described herein are merely for explaining the related application and are not intended to limit the application. The described embodiments are merely a portion of the embodiments of the present application and are not intended to be exhaustive. All other embodiments derived by persons of ordinary skill in the art based on the embodiments in the present application without creative effort are intended to fall within the scope of protection of the present application.

[0038] It should be noted that, for ease of description, only the parts related to the relevant applications are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0039] It should be understood that the terms "system," "device," "unit," and / or "module" used in this application are a method for distinguishing different components, elements, parts, portions, or assemblies at different levels. However, if other terms can achieve the same purpose, the terms may be replaced by other expressions.

[0040] As used in this application and the claims, unless the context clearly indicates an exception, the terms "a," "an," "an," and / or "the" are not intended to refer to the singular and may include the plural, unless the context clearly indicates otherwise. Generally speaking, the terms "comprises" and "include" only indicate the inclusion of the steps and elements specifically identified, and these steps and elements do not constitute an exclusive list. A method or apparatus may also include other steps or elements. The phrase "comprises a..." does not preclude the presence of additional identical elements in the process, method, product, or apparatus that includes the elements.

[0041] In the description of the embodiments of this application, unless otherwise specified, " / " represents or. For example, A / B can represent A or B. "And / or" in this article is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of this application, "plurality" means two or more than two.

[0042] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0043] A wind turbine platform is a structure used to mount a tower 3 and wind turbines. As global offshore wind power development gradually moves toward deep seas and offshore areas, floating wind turbine platforms have garnered widespread attention within the industry.

[0044] First, the wind turbine platform disclosed in this application is a floating wind turbine platform, comprising a floating platform 1 and an oscillating water column wave energy power generation device 2. The floating platform 1 is used to support wind turbines for power generation, enabling stable operation of floating offshore wind turbines in deep waters; the oscillating water column wave energy power generation device 2 is used to generate electricity using wave energy.

[0045] In this solution, the floating platform 1 includes a central column 11 . The central column 11 is located on the upper surface of the floating platform 1 , and the central column 11 is located in the middle of the floating platform 1 .

[0046] The central column 11 is used to install the tower 3, and the wind turbine 5 is installed on the top of the tower 3. The wind turbine 5 is used to convert wind energy into mechanical energy, and then generate electrical energy through the power generation system; the tower 3 is used to withstand various loads of the wind turbine in the complex offshore environment, and ensure a stable connection with the floating platform 1 to ensure the normal operation of the entire power generation system.

[0047] The weight of the wind turbine and the tower 3 acts on the central column 11 , and the central column 11 evenly distributes the weight of the wind turbine and the tower 3 to the floating platform 1 , thereby improving the stability of the floating platform 1 .

[0048] Optionally, the central column 11 is a solid column with high strength, so as to enhance the connection strength between the tower 3 and the floating platform 1 and improve the stability of the floating offshore wind turbine with the above-mentioned wind turbine platform.

[0049] In other embodiments, the central column 11 may also be a buoy 14 to enhance the buoyancy of the floating platform 1 and improve the wind and wave resistance of the wind turbine platform.

[0050] The wind turbine platform disclosed in the present application integrates an oscillating water column wave energy power generation device 2 on the central column 11 of the floating platform 1. Specifically, a cavity is opened in the central column 11 to form an air chamber 21 of the oscillating water column wave energy power generation device 2. At the same time, a water chamber 22 and an air inlet and outlet 23 of the oscillating water column wave energy power generation device 2 are provided on the central column 11, and the water chamber 22 and the air inlet and outlet 23 are both connected to the air chamber 21.

[0051] When the wind turbine platform is located on the sea, the water chamber 22 is directly contacted with seawater, the inlet and outlet hole 23 is located above the sea surface, and the turbine of the oscillating water column wave energy power generation device 2 is arranged in the inlet and outlet hole 23. The waves move towards the central column 11, and the waves have wave crests and wave troughs. When the wave crest enters the water chamber 22, the water level of the water chamber 22 is pushed to rise, the rising water level extrudes the air in the air chamber 21, the air pressure of the air chamber 21 increases, the air in the air chamber 21 is discharged through the inlet and outlet hole 23, and the turbine of the oscillating water column wave energy power generation device 2 is pushed to rotate; when the wave trough enters the water chamber 22, the water is drawn out of the water chamber 22, the water level in the water chamber 22 decreases, the air pressure of the air chamber 21 decreases, and the outside air is sucked into the air chamber 21 through the inlet and outlet hole 23, and the sucked gas pushes the turbine to rotate. The inhaled and discharged gas through the inlet and outlet hole 23 will push the turbine to rotate, and the turbine drives the generator to generate electricity, thereby converting wave energy into electrical energy.

[0052] Optionally, the size of the air chamber 21 is designed to make the oscillation frequency of the water surface in the air chamber 21 close to the frequency of the waves, the oscillation of the water surface in the air chamber 21 resonates with the waves, the amplitude of the resonant water surface fluctuation is much higher than that of the waves, the flow of the gas in the inlet and outlet hole 23 is increased, and thus the power generation efficiency is improved.

[0053] The central column 11 is located on the upper surface of the floating platform 1, and correspondingly, the air chamber 21, the water chamber 22 and the inlet and outlet hole 23 of the oscillating water column wave energy power generation device 2 integrated in the floating platform 1 are also located on the upper surface of the floating platform 1. The floating platform 1 realizes the isolation of the oscillating water column wave energy power generation device 2 from the seabed, increases the distance between the water chamber 22 and the seabed, reduces the risk of the water chamber 22 being blocked by silt, sundries and the like under complex sea conditions, and ensures the water inlet and outlet capacity of the water chamber 22, thereby guaranteeing the wave energy capturing effect, realizing the stable operation of the oscillating water column wave energy power generation device 2, and improving the stability of power generation.

[0054] Meanwhile, the oscillating water column wave energy power generation device 2 is integrated on the central column 11, in other words, the air chamber 21, the water chamber 22 and the inlet and outlet hole 23 of the oscillating water column wave energy power generation device 2 are arranged by using the structure of the floating platform 1, and thus a separate installation space for the oscillating water column wave energy power generation device 2 is not needed, the structure of the wind turbine platform is simplified, the volume and weight of the wind turbine platform including the oscillating water column wave energy power generation device 2 are reduced, and the production cost is reduced.

[0055] The oscillating water column wave power generation device 2 is arranged in the center column 11, which reduces the risk of damage of the oscillating water column wave power generation device 2 caused by the impact of severe sea conditions, protects the oscillating water column wave power generation device 2, and ensures the stable operation of the oscillating water column wave power generation device 2.

[0056] Meanwhile, the oscillating water column wave power generation device 2 is arranged in the center column 11, and the air chamber 21, the water chamber 22 and the air inlet and outlet hole 23 are arranged by means of the center column 11, which does not increase the volume of the center column 11, thereby not increasing the wind resistance of the fan platform, improving the stability of the fan platform operation, reducing the operation risk of the fan platform, and not affecting the arrangement and operation space of other equipment of the fan platform.

[0057] The fan platform disclosed in the present application integrates the oscillating water column wave power generation device 2 and the fan on the center column 11 of the floating platform 1, realizes the combination of the oscillating water column wave power generation device 2 and the floating platform 1, and can capture wind energy and wave energy at the same time, that is, the floating offshore wind turbine with the fan platform can generate electricity by using wind energy and wave energy, realizes complementary power generation of wind energy and wave energy, and improves energy utilization efficiency and total power generation.

[0058] In operation, the fan of the tower 3 converts wind energy into electric energy, which is transmitted to the floating platform 1 through the tower 3.

[0059] The wave enters the air chamber 21 through the water chamber 22, causing the water column in the air chamber 21 to oscillate, and the oscillating water column forces the gas to reciprocate through the air inlet and outlet hole 23, driving the turbine to drive the motor to generate electricity.

[0060] The fan and the oscillating water column wave power generation device 2 can work under the action of wind energy and wave energy at the same time, and work independently without affecting each other.

[0061] The present scheme integrates the oscillating water column wave power generation device 2 on the fan platform, which provides a mounting base for the oscillating water column wave power generation device 2, realizes the utilization of deep-sea wave energy by the oscillating water column wave power generation device 2, and at the same time, the oscillating water column wave power generation device 2 produces a damping effect on the fan platform through the movement of the water column in the air chamber 21, reduces the sway of the fan platform, plays a role in reducing the motion response of the fan platform in the wave, helps to ensure the normal operation of the floating offshore wind turbine, improves the stability and sea-keeping performance of the fan platform, reduces damage and power generation efficiency caused by the sway of the fan platform, prolongs the service life, and the two complement each other.

[0062] In addition, compared with building wind power generation devices and wave power generation devices separately, the wind power generation devices and wave power generation devices in this solution share the wind turbine platform, transformation and transmission system, which significantly reduces construction costs and operating costs and has economic advantages.

[0063] The floating platform 1 may be a semi-submersible platform, a barge platform, or other floating platforms 1, all of which are within the scope of protection of this application.

[0064] In the embodiment where the floating platform 1 is a semi-submersible platform, the semi-submersible platform has advantages such as deep-water adaptability, operational stability, and applicability in multiple scenarios.

[0065] In some embodiments, the semi-submersible platform includes a base 12 , a heave plate 13 and a buoy 14 .

[0066] like Figures 2-5 Figure 1 shows the structure of a semi-submersible platform. A base 12 is located in the center, with a central column 11 mounted on it. Heave plates 13 are radially arranged along the circumference of the base 12, extending radially from the central column 11. One end of the heave plate 13 is connected to the base 12, and a buoy 14 is mounted on the other end of the heave plate 13, located on its upper surface.

[0067] Figure 2 There are three middle heaving plates 13, and the angle between two adjacent heaving plates 13 is 120°. The heaving plates 13 include a long strip segment and a circular segment. One end of the long strip segment is connected to the base 12, and the other end of the long strip segment is connected to the circular segment. A buoy 14 is provided on the circular segment.

[0068] The number of heave plates 13 is not limited to 3, and may also be 4, 6 or more. The specific number is selected by those skilled in the art according to actual needs and is within the scope of protection of this application.

[0069] Optionally, the elongated section and the circular section of the heave plate 13 are integrally formed.

[0070] In some embodiments, the heave plate 13 and the buoy 14 are made of pure steel structure, or the heave plate 13 and the buoy 14 are made of pre-supported reinforced concrete structure.

[0071] Optionally, the heave plate 13 and the buoy 14 are connected by embedded parts.

[0072] The base 12 can be a polygonal base or a circular base. Figure 2 As shown, the base 12 is an embodiment of a triangular base, and a heave plate 13 is provided at the vertex of the triangular base.

[0073] In order to further provide damping effect for the fan platform, so as to reduce the motion response of the fan platform, a moon pool 121 is arranged on the base 12, the moon pool 121 is located at the center of the base 12, and the moon pool 121 is in communication with the water chamber 22.

[0074] The moon pool 121 is in communication with the water chamber 22, so that the seawater can more smoothly and quickly enter the water chamber, compress the gas in the gas chamber 21, and make the turbine rotate.

[0075] The scheme combines the fan platform with the moon pool with the generator located at the center column 11, the moon pool 121 can weaken the heave direction motion of the fan platform by increasing damping, and at the same time, the water column moving vertically through the moon pool 121 can be accelerated to flow into the water chamber 22 of the center column 11, so as to enhance the working efficiency and effective working time of the generator, and further improve the power generation efficiency of the system.

[0076] The moon pool 121 is combined with the heave plate 13, and the moon pool 121 and the heave plate 13 work cooperatively to improve the stability of the fan platform.

[0077] The shape of the moon pool 121 can be the same as that of the base 12, or can be different from that of the base 12. The shape of the moon pool 121 is an axisymmetric figure.

[0078] In other embodiments, the semi-submersible platform includes a plurality of pontoons 14 and a truss, the number of the pontoons 14 is at least three, the center column 11 is located at the middle of a space surrounded by the plurality of pontoons 14, the axis of the center column 11 is parallel to the axis of the pontoons 14, and the center column 11 is connected with the pontoons 14 through the truss. Optionally, the heave plate 13 is arranged below the pontoons 14.

[0079] The semi-submersible platform is not limited to the above two embodiments, and can also be in other forms, which are all within the protection scope of the present application.

[0080] The water chamber 22 is located at one end of the center column 11 close to the floating platform 1, and the water inlet of the water chamber 22 is arranged on the side wall of the center column 11, so as to better capture wave energy.

[0081] Optionally, at least two water inlets are arranged in the circumferential direction of the center column 11, so as to enhance the wave energy capturing capacity.

[0082] The pontoons 14 will block the propagation of waves to a certain extent, and the water inlets and the pontoons 14 are distributed in the circumferential direction of the center column 11 in the present scheme, so as to ensure that the waves can move to the water chamber 22.

[0083] In some embodiments, the water chamber 22 can be a chamber structure directly below the center column 11;

[0084] In other embodiments, the central column 11 is connected to the floating platform 1 through the support columns 4 , the space between the central column 11 and the floating platform 1 forms a water chamber 22 , and water inlets are formed between adjacent support columns 4 .

[0085] Optionally, the support column 4 and the central column 11 are integrally formed.

[0086] The water chamber 22 is not limited to the above embodiment, and may also be in other forms, all of which are within the protection scope of this application.

[0087] There are at least two air inlet and outlet holes 23 , and at least two air inlet and outlet holes 23 are spaced apart in the circumferential direction of the central column 11 . Each air inlet and outlet hole 23 is provided with a turbine.

[0088] The distances between two adjacent air inlet and outlet holes 23 may be equal or unequal.

[0089] Two adjacent air inlet and outlet holes 23 may be distributed at equal heights or at unequal heights in the axial direction of the central column 11 .

[0090] like Figure 3 As shown, there are three water inlets and three air inlet and outlet holes 23 . The water inlets and the air inlet and outlet holes 23 are opposite to each other in the circumferential direction of the central column 11 , and the air inlet and outlet holes 23 and the buoy 14 are staggered in the circumferential direction of the central column 11 .

[0091] The cross-sectional area of ​​the air inlet and outlet holes 23 is the cross-sectional area of ​​the air inlet and outlet holes 23 perpendicular to the gas flow direction.

[0092] The cross-sectional area of ​​the air inlet and outlet holes 23 is much smaller than the area of ​​the air chamber 21 along the axis perpendicular to the central column 11. The gas flows at high speed through the air inlet and outlet holes 23 to drive the turbine to rotate.

[0093] In some embodiments, the cross-sectional area of ​​the air inlet and outlet holes 23 gradually decreases from one end close to the air chamber 21 to the end away from the air chamber 21, so that the flow rate of the gas flowing outward from the air chamber 21 gradually increases, which helps to drive the rotation of the turbine, and the flow rate of the gas flowing from the outside into the air chamber 21 gradually decreases, which helps to achieve uniform distribution of gas in the air chamber 21.

[0094] In some other embodiments, the cross-sectional area of ​​the air inlet and outlet holes 23 remains constant from the end close to the air chamber 21 to the end far away from the air chamber 21 .

[0095] The arrangement of the air inlet and outlet holes 23 is not limited to the above embodiment. The air inlet and outlet holes 23 can also be in other forms, such as a combination of an air inlet and outlet section with a constant cross-sectional area and an air inlet and outlet section with a gradually increasing cross-sectional area, all of which are within the scope of protection of this application.

[0096] The cross-sectional shape of the gas inlet / outlet hole 23 refers to the cross-sectional shape of the gas inlet / outlet hole 23 along a direction perpendicular to the gas flow direction.

[0097] The cross-sectional shape of the gas inlet / outlet hole 23 can be circular, oval or other shapes.

[0098] The gas inlet / outlet hole 23 can be arranged along the axial direction of the central column 11, or arranged along the radial direction of the central column 11, that is, the oscillating water column wave power generation device 2 can select upper end gas outlet or side gas outlet.

[0099] The side gas outlet is relatively convenient due to the arrangement of the tower 3 at the upper end of the central column 11.

[0100] In a second aspect, the application also discloses a floating offshore wind turbine, as shown, comprising a wind turbine platform, and the wind turbine platform is the wind turbine platform described in any one of the above solutions. Figure 1

[0101] Since the wind turbine platform has the above technical effects, the floating offshore wind turbine with the wind turbine platform also has the same technical effects, which will not be described here.

[0102] The floating offshore wind turbine further comprises a mooring cable 6 connected with the floating platform 1 of the wind turbine platform.

[0103] Optionally, the mooring cable 6 is connected with the heave plate 13.

[0104] The above description is only the preferred embodiment of the application and the explanation of the applied technical principles, and is not used to limit the application. For those skilled in the art, the application can have various changes and modifications. The application range involved in the application is not limited to the technical solutions formed by the specific combination of the above technical features, and should also cover other technical solutions formed by the combination of the above technical features or their equivalent features without departing from the above application concept. For example, the above features are replaced with the technical features disclosed in the application (but not limited to) having similar functions to form technical solutions.​

Claims

1. A wind turbine platform, characterized in that: It comprises a floating platform (1) and an oscillating water column wave energy power generation device (2); The floating platform (1) comprises a central column (11), and a tower (3) is mounted on the central column (11); A cavity is provided in the central column (11) to form an air chamber (21) of the oscillating water column type wave energy power generation device (2); a water chamber (22) and an air inlet and outlet hole (23) of the oscillating water column type wave energy power generation device (2) are provided on the central column (11); the water chamber (22) and the air inlet and outlet hole (23) are both in communication with the air chamber (21); The water chamber (22) is in communication with seawater and is used for allowing seawater to enter and exit the air chamber (21); the air inlet and outlet holes (23) are located above the sea surface and are used for allowing air to enter and exit the air chamber (21); and the turbine of the oscillating water column type wave energy power generation device (2) is arranged in the air inlet and outlet holes (23).

2. The wind turbine platform according to claim 1, characterized in that: The floating platform (1) is a semi-submersible platform.

3. The wind turbine platform according to claim 2, characterized in that: The semi-submersible platform comprises: A base (12), the central column (11) being mounted on the base (12); At least three heave plates (13) are evenly arranged along the circumference of the base (12), and the heave plates (13) are arranged along the radial direction of the central column (11); A buoy (14), wherein the buoy (14) is connected to a side of the heave plate (13) away from the base (12).

4. The wind turbine platform according to claim 3, characterized in that: The base (12) comprises a moon pool (121) in communication with the water chamber (22), and the moon pool (121) is used to increase the damping of the floating platform (1).

5. The wind turbine platform according to claim 3, characterized in that: The water inlet of the water chamber (22) is arranged on the side wall of the central column (11); The water inlet and the buoy (14) are staggered and distributed in the circumferential direction of the central column (11).

6. The wind turbine platform according to any one of claims 1 to 5, characterized in that: The central column (11) is connected to the floating platform (1) via a support column (4), and the space between the central column (11) and the floating platform (1) forms the water chamber (22); A water inlet of the water chamber (22) is formed between two adjacent support columns (4).

7. The wind turbine platform according to any one of claims 1 to 5, characterized in that: The number of the air inlet and outlet holes (23) is at least two, and at least two of the air inlet and outlet holes (23) are arranged at intervals along the circumference of the central column (11); At least two of the air inlet and outlet holes (23) are arranged at equal or unequal heights in the axial direction of the central column (11).

8. The wind turbine platform according to any one of claims 1 to 5, characterized in that: The cross-sectional area of ​​the air outlet gradually decreases from an end close to the air chamber (21) to an end away from the air chamber (21).

9. The wind turbine platform according to any one of claims 1 to 5, characterized in that: The cross-sectional area of ​​the air outlet remains unchanged from an end close to the air chamber (21) to an end away from the air chamber (21).

10. A floating offshore wind turbine, characterized in that: Comprising a wind turbine platform, wherein the wind turbine platform is the wind turbine platform according to any one of claims 1 to 9; It also includes a mooring cable, which is connected to the floating platform (1) of the wind turbine platform.

Images