Offshore floating type wind power foundation platform

Abstract

The invention relates to the field of offshore wind power, and particularly discloses an offshore floating type wind power foundation platform which comprises a floating type platform mechanism, a lifting mechanism and a wind driven generator. The floating platform mechanism comprises a floating platform assembly, and a positioning assembly is fixedly mounted on the upper side of the floating platform assembly; the lifting mechanism comprises a supporting assembly and three sets of lifting assemblies, the supporting assembly is clamped and embedded in the floating platform assembly in a sliding mode, and the three sets of lifting assemblies are distributed in a triangular mode and fixedly installed on the floating platform assembly and used for driving the supporting assembly to ascend and descend along the floating platform assembly; by arranging the positioning assembly, positioning is conducted when the supporting assembly and the wind driven generator ascend and descend to the limiting position, and the device can flexibly deal with different weather conditions. In stormy weather, the positioning assembly positions the supporting assembly and the wind driven generator at a lower position, the gravity center is lowered, the stability of the whole device is enhanced, and direct impact of stormy waves on the wind driven generator is reduced.

Description

Technical Field

[0001] The present invention belongs to the field of offshore wind power, in particular to an offshore floating wind power foundation platform. Background Art

[0002] With the growing global demand for clean energy and the increasing depletion of traditional fossil fuels, wind power, as a renewable and pollution-free energy source, has attracted widespread attention worldwide. Offshore wind power offers numerous significant advantages over onshore wind power. Offshore wind speeds are typically higher and more stable than onshore wind speeds, and wind energy resources are more abundant, enabling more sustained and stable power output. Furthermore, offshore wind farms do not occupy valuable land resources, minimizing disruption to human life and the ecological environment. Their proximity to coastal power load centers reduces power transmission losses and costs. Therefore, offshore wind power has become a key development direction in the global wind power sector, offering broad prospects and enormous market potential.

[0003] Currently, existing offshore floating wind turbine foundations lack the ability to flexibly adjust their height according to varying weather conditions. In the event of adverse sea conditions, the wind turbines cannot be lowered sufficiently to lower their center of gravity and enhance stability. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides an offshore floating wind power foundation platform to solve the problem in the existing technology that the offshore floating wind power foundation platform cannot flexibly adjust the positioning height of the wind turbine according to different weather conditions, and it is difficult to effectively lower the center of gravity and enhance the stability of the device under severe sea conditions, thereby affecting equipment safety and power generation efficiency.

[0005] An offshore floating wind power foundation platform comprises a floating platform mechanism, a lifting mechanism and a wind turbine generator;

[0006] The floating platform mechanism includes a floating platform assembly, and a positioning assembly is fixedly installed on the upper side of the floating platform assembly;

[0007] The lifting mechanism includes a support assembly and three sets of lifting assemblies. The support assembly is slidably embedded in the floating platform assembly. The three sets of lifting assemblies are fixedly installed on the floating platform assembly in a triangular distribution and are used to drive the support assembly to rise and fall along the floating platform assembly.

[0008] The wind turbine is fixedly mounted on the support assembly, and the positioning assembly is used to position the support assembly.

[0009] Preferably, the floating platform assembly comprises three longitudinally arranged floating column, the lower end of the outer side of the floating column is fixedly connected with an anchor chain, the end of the anchor chain is anchored to the seabed, the middle of the three floating columns is provided with an upper support and a lower support, the upper support is connected to the upper end of the outer side of the three floating columns, and the lower support is connected to the lower end of the outer side of the three floating columns.

[0010] The positioning assembly is fixedly installed on the upper support through bolts.

[0011] Preferably, the lower support is also fixedly installed with an inner support rod.

[0012] The bottom of the wind driven generator is provided with a cavity for accommodating the inner support rod.

[0013] Preferably, the support assembly comprises a support seat, and a plurality of fixing bolts are fixed to the upper end of the support seat.

[0014] The bottom of the wind driven generator is provided with a flange, and the flange is fixed to the support seat through the fixing bolts.

[0015] Preferably, the outer side of the support seat is also fixed with three hanging rings.

[0016] The lifting assembly comprises a winch, the winch is installed with a steel cable, and the end of the steel cable is fixed with a traction ring.

[0017] The winch is fixedly installed on the upper side of the upper support, and the traction ring and the hanging ring are connected with each other.

[0018] Preferably, the outer side of the support seat is also fixed with a connecting frame, and a guide column is fixedly installed at the upper end of the connecting frame.

[0019] The guide column is slidingly clamped on the upper support.

[0020] Preferably, the end of the connecting frame is also fixed with a scraping ring.

[0021] The upper and lower surfaces of the scraping ring are conical, and the scraping ring is slidingly clamped on the outer side of the floating column.

[0022] Preferably, the positioning assembly comprises an annular positioning frame, and three hydraulic rods are fixedly installed on the outer side of the annular positioning frame.

[0023] A hole is formed in the guide column, and the telescopic rod of the hydraulic rod is embedded in the hole.

[0024] Compared with the prior art, the present application has the following beneficial effects:

[0025] By setting the positioning assembly, the support assembly and the wind turbine are positioned when reaching the limit position, so that the device can flexibly cope with different weather conditions. When encountering stormy weather, the positioning assembly positions the support assembly and the wind turbine at a lower position, lowers the center of gravity, enhances the stability of the entire device, reduces the direct impact of the storm on the wind turbine, avoids damage to the equipment due to violent shaking, and ensures the safety of the wind turbine in severe sea conditions; in normal weather, the positioning assembly positions them at a higher position, so that the wind turbine is in a more optimal wind energy capture area, can contact airflow with stronger and more stable wind, thereby improving the efficiency of wind power generation and achieving higher power output.

[0026] By fixing the scraping ring with a conical upper surface and a lower surface at the end of the connecting frame and slidingly embedding it outside the buoy column, the scraping ring can effectively slide along the buoy column during the lifting of the support base. The conical design can smoothly scrape off marine organisms or debris attached to the surface of the buoy column, preventing the buoy column from becoming too heavy due to excessive attachment of marine organisms, which can affect the stability and buoyancy of the entire floating platform, ensuring long-term stable operation of the floating platform in the marine environment, and providing a reliable foundation for the normal operation of the wind turbine.

[0027] By setting the positioning assembly composed of a ring-shaped positioning frame and three hydraulic rods, and allowing the telescopic rods of the hydraulic rods to be embedded in the holes on the guide column, precise and stable positioning of the support assembly is achieved. When the support assembly reaches the limit position, the hydraulic rods are activated, and the telescopic rods are embedded in the holes, making the operation simple and quick. This positioning method can work in different weather conditions, ensuring stable positioning of the support assembly and the wind turbine after they are lowered in stormy weather, reducing the center of gravity to enhance stability and reduce the impact of the storm. In normal weather, it can also ensure precise positioning after rising, so that the wind turbine is in a more optimal wind energy capture area. This effectively improves the safety and power generation efficiency of the entire offshore wind power device, prolonging the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

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

[0029] Figure 2 is a schematic diagram of the exploded structure of the present application;

[0030] Figure 3 is a schematic diagram of the structure of the floating platform mechanism of the present application;

[0031] Figure 4 is a schematic diagram of the lifting mechanism of the present application;

[0032] Figure 5 is a schematic diagram of the positioning assembly of the present application;

[0033] Figure 6 A cross-sectional view of the present application.

[0034] In the figure: 1, floating platform mechanism; 11, floating platform assembly; 111, pontoon column; 112, anchor chain; 113, upper support; 114, lower support; 115, inner support rod; 12, positioning assembly; 121, ring-shaped positioning frame; 122, hydraulic rod; 2, lifting mechanism; 21, support assembly; 211, support seat; 212, fixing bolt; 213, hanging ring; 214, connecting frame; 215, guide column; 216, scraping ring; 22, lifting assembly; 221, winch; 222, steel cable; 223, traction ring; 3, wind turbine. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0036] As shown in Figure 1 and Figure 2 :

[0037] Embodiment one: the present application provides a floating offshore wind power foundation platform, comprising a floating platform mechanism 1, a lifting mechanism 2 and a wind turbine 3;

[0038] The floating platform mechanism 1 comprises a floating platform assembly 11, and the upper side of the floating platform assembly 11 is fixedly installed with a positioning assembly 12;

[0039] The lifting mechanism 2 comprises a support assembly 21 and three sets of lifting assemblies 22, the support assembly 21 is slidingly clamped on the floating platform assembly 11, and the three sets of lifting assemblies 22 are fixedly installed on the floating platform assembly 11 in a triangular distribution, for driving the support assembly 21 to ascend and descend along the floating platform assembly 11;

[0040] The wind turbine 3 is fixedly installed on the support assembly 21, and the positioning assembly 12 is used for positioning the support assembly 21.

[0041] As can be seen from the above, during work, the floating platform assembly 11 serves as the foundation of the entire platform and stably floats on the sea surface;

[0042] The lifting assembly 22 is controlled to start work, and the support assembly 21 is driven to ascend and descend along the floating platform assembly 11; the triangular distribution design makes the lifting process more stable and reliable, and can accurately adjust the height of the support assembly 21; and the wind turbine 3 fixedly installed on the support assembly 21 also ascends and descends;

[0043] When encountering stormy weather, the sea is rough, and the wind turbine 3 will be subjected to a greater impact force. At this time, the control support assembly 21 and the wind turbine 3 are lowered, and when reaching the limit position, positioning is performed through the positioning assembly 12, so that the wind turbine 3 is in a lower position, the center of gravity is lowered, the stability of the entire device is enhanced, the direct impact of the wind wave on the wind turbine 3 is reduced, damage to the equipment due to violent shaking is avoided, and the safety of the wind turbine 3 in severe sea conditions is ensured.

[0044] When the weather is normal, the sea is relatively calm, and in order to enable the wind turbine 3 to capture more wind energy and improve power generation efficiency, the control support assembly 21 and the wind turbine 3 are raised, and when reaching the limit position, positioning is performed through the positioning assembly 12, so that the wind turbine 3 is in a higher position, in a more optimal wind energy capture area, can contact airflow with stronger and more stable wind, thereby improving the efficiency of wind power generation and achieving higher power output.

[0045] As shown in Figures 3 to 6

[0046] Embodiment two: this embodiment is basically the same as the previous embodiment, the difference is that the floating platform assembly 11 includes three longitudinally arranged floating column 111, the lower end of the outer side of the floating column 111 is fixedly connected with the anchor chain 112, the tail end of the anchor chain 112 is anchored to the seabed, the middle of the three floating columns 111 is provided with an upper support 113 and a lower support 114, the upper support 113 is connected to the upper end of the outer side of the three floating columns 111, and the lower support 114 is connected to the lower end of the outer side of the three floating columns 111.

[0047] The positioning assembly 12 is fixedly installed on the upper support 113 through bolts.

[0048] Specifically, the lower support 114 is also fixedly installed with an inner support rod 115.

[0049] The bottom of the wind turbine 3 is provided with a cavity accommodating the inner support rod 115.

[0050] When the wind turbine 3 is lowered to the limit position, the inner support rod 115 is just located in the cavity, thereby supporting the wind turbine 3 in strong wind weather.

[0051] Specifically, the support assembly 21 includes a support seat 211, and a plurality of fixing bolts 212 are fixed to the upper end of the support seat 211.

[0052] The bottom of the wind turbine 3 is provided with a flange, and the flange is fixed to the support seat 211 through the fixing bolts 212.

[0053] Specifically, the outer side of the support seat 211 is also fixed with three hanging rings 213.

[0054] ​As shown in Figure 4

[0055] The lifting assembly 22 comprises a winch 221, a steel cable 222 is installed on the winch 221, and a traction ring 223 is fixed at the end of the steel cable 222;

[0056] The winch 221 is fixedly installed on the upper side of the upper support 113, and the traction ring 223 and the hanging ring 213 are connected with each other.

[0057] Specifically, the outer side of the support seat 211 is also fixedly provided with a connecting frame 214, and a guide column 215 is fixedly installed at the upper end of the connecting frame 214.

[0058] The guide column 215 is slidingly clamped on the upper support 113.

[0059] As can be seen from the above, during work, the floating platform assembly 11 is stably floated on the sea surface by virtue of the three longitudinally arranged buoy columns 111, the anchor chains 112 connected to the outer lower ends of the buoy columns 111 are anchored to the seabed, thereby providing stable positioning for the entire platform and preventing it from drifting with the sea current, and meanwhile, the upper support 113 and the lower support 114 are connected to the upper and lower ends of the three buoy columns 111, respectively, thereby enhancing the stability of the structure.

[0060] When it is necessary to adjust the height of the wind turbine 3, the lifting assembly 22 starts to operate, the winch 221 is fixedly installed on the upper side of the upper support 113, the traction ring 223 at the end of the steel cable 222 on the winch 221 is connected with the hanging ring 213 fixed on the outer side of the support seat 211 in the support assembly 21, the winch 221 drives the support seat 211 to ascend and descend by winding and unwinding the steel cable 222, the guide column 215 at the upper end of the connecting frame 214 on the outer side of the support seat 211 is slidingly clamped on the upper support 113, thereby providing guidance for the lifting process, and enabling the support assembly 21 to stably ascend and descend along the floating platform assembly 11, and this design of triangular distribution and with guidance makes the lifting process more stable and reliable, and can accurately adjust the height;

[0061] When the support assembly 21 ascends and descends, the wind turbine 3 fixedly connected to the upper end of the support seat 211 through the fixing bolt 212 and the flange at the bottom of the wind turbine 3 also ascends and descends; the inner support rod 115 fixed on the lower support 114 can be embedded into the cavity formed at the bottom of the wind turbine 3, thereby playing a role of auxiliary support and stability during the ascending and descending and working processes of the wind turbine 3; when reaching the limit position, the positioning assembly 12 can accurately position the support assembly 21, thereby ensuring that the support assembly 21 can stably work under different working conditions, whether it is to lower the center of gravity to enhance the stability and reduce the impact in the stormy weather, or to ascend to capture more wind energy and improve the power generation efficiency in the normal weather, the entire device can be ensured to operate safely and efficiently.

[0062] As shown in Figure 4 and 5 ​As shown: example three: this embodiment is basically the same as the last example, the difference is that the end of the connecting frame 214 is also fixed with a scraping ring 216;

[0063] The upper and lower surfaces of the scraping ring 216 are conical, and the scraping ring 216 is slidingly clamped on the outer side of the buoy column 111.

[0064] Specifically, the positioning assembly 12 includes an annular positioning frame 121, and three hydraulic rods 122 are fixedly installed on the outer side of the annular positioning frame 121.

[0065] The guide column 215 is provided with a hole in which the telescopic rod of the hydraulic rod 122 is embedded.

[0066] As can be seen from the above, when the support seat 211 is lifted, the scraping ring 216 at the end of the connecting frame 214 on the outer side of the support seat 211 will slide along the outer side of the buoy column 111, and the conical design of the upper and lower surfaces can effectively scrape off the marine organisms or sundries attached to the surface of the buoy column 111, avoiding the situation that the buoy column 111 is too heavy due to too many marine organisms being fixed outside.

[0067] When the support assembly 21 reaches the limit position, the three hydraulic rods 122 on the outer side of the annular positioning frame 121 are started, and the telescopic rod is embedded in the hole provided in the guide column 215, thereby achieving firm positioning of the support assembly 21. This positioning method is not only simple to operate, but also accurate and stable. Whether it is lowered in stormy weather to lower the center of gravity and enhance stability, or raised in normal weather to capture more wind energy, it can ensure that the wind turbine 3 works stably, and effectively improves the safety and power generation efficiency of the entire offshore wind power generation device.

[0068] The embodiments of the present application are given for example and description, although the embodiments of the present application have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary, and cannot be understood as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and modifications to the above-mentioned embodiments within the scope of the present application, which should be included in the protection scope of the present application.

Claims

1. An offshore floating wind power foundation platform, characterized in that: It comprises a floating platform mechanism (1), a lifting mechanism (2) and a wind turbine (3); The floating platform mechanism (1) comprises a floating platform assembly (11), and a positioning assembly (12) is fixedly mounted on the upper side of the floating platform assembly (11); The lifting mechanism (2) comprises a support assembly (21) and three groups of lifting assemblies (22), wherein the support assembly (21) is slidably engaged on the floating platform assembly (11), and the three groups of lifting assemblies (22) are fixedly mounted on the floating platform assembly (11) in a triangular distribution, and are used to drive the support assembly (21) to rise and fall along the floating platform assembly (11); The wind turbine (3) is fixedly mounted on the support assembly (21), and the positioning assembly (12) is used for positioning the support assembly (21).

2. The offshore floating wind power foundation platform according to claim 1, characterized in that: The floating platform assembly (11) includes three longitudinally arranged buoy columns (111), the lower ends of the outer sides of the buoy columns (111) are fixedly connected to anchor chains (112), the ends of the anchor chains (112) are anchored to the seabed, and an upper bracket (113) and a lower bracket (114) are arranged in the middle of the three buoy columns (111), the upper bracket (113) is connected to the upper ends of the outer sides of the three buoy columns (111), and the lower bracket (114) is connected to the lower ends of the outer sides of the three buoy columns (111); The positioning assembly (12) is fixedly mounted on the upper bracket (113) by means of bolts.

3. The offshore floating wind power foundation platform according to claim 2, characterized in that: An inner support rod (115) is also fixedly mounted on the lower bracket (114); The bottom of the wind turbine (3) is provided with a cavity for accommodating an inner support rod (115).

4. The offshore floating wind power foundation platform according to claim 2, characterized in that: The support assembly (21) comprises a support seat (211), and a plurality of fixing bolts (212) are fixed to the upper end of the support seat (211); A flange is installed at the bottom of the wind turbine (3), and the flange is fixed to the support seat (211) via fixing bolts (212).

5. The offshore floating wind power foundation platform according to claim 4, characterized in that: Three hanging rings (213) are also fixed on the outer side of the support seat (211); The lifting assembly (22) includes a hoist (221), a steel cable (222) is installed on the hoist (221), and a traction ring (223) is fixed to the end of the steel cable (222); The hoist (221) is fixedly mounted on the upper side of the upper bracket (113), and the traction ring (223) and the hanging ring (213) are connected to each other.

6. The offshore floating wind power foundation platform according to claim 5, characterized in that: A connecting frame (214) is fixed to the outer side of the support seat (211), and a guide column (215) is fixedly installed on the upper end of the connecting frame (214); The guide column (215) is slidably engaged with the upper bracket (113).

7. The offshore floating wind power foundation platform according to claim 6, characterized in that: A scraping ring (216) is also fixed to the end of the connecting frame (214); The upper and lower surfaces of the scraping ring (216) are both conical, and the scraping ring (216) is slidably embedded in the outer side of the buoy column (111).

8. The offshore floating wind power foundation platform according to claim 7, characterized in that: The positioning assembly (12) comprises an annular positioning frame (121), and three hydraulic rods (122) are fixedly mounted on the outer side of the annular positioning frame (121); The guide column (215) is provided with a hole for accommodating the telescopic rod of the hydraulic rod (122) to be embedded.

Images