Offshore wind and fish fusion tension leg floating type wind power platform

Abstract

The utility model belongs to the technical field of offshore wind power generation and fishery breeding, and particularly discloses an offshore wind and fish fusion tension leg floating type wind power platform which comprises an upper fan, a platform foundation and an anchoring foundation, and the upper fan is formed by assembling an upper tower drum, a middle tower drum, a bottom tower drum, a cabin, a hub and fan blades; the platform foundation comprises a main body, a bearing platform is arranged at the top of the main body, a bottom tower drum is fixedly connected to the bearing platform, the platform foundation is connected with a plurality of angular point buoys, accessory components are arranged on the bearing platform in the circumferential direction, a plurality of anchor gears are arranged on the accessory components in the circumferential direction, and anchor chains are wound on the anchor gears; the anchoring foundation comprises a ballast component, and the ballast component is movably connected to the bottom of the platform foundation through an anchor chain. The wind and fish integrated development mode is utilized, space can be provided for fishery breeding, wind power generation can be carried out, comprehensive cost is reduced, and meanwhile maximum utilization of sea space is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to offshore wind power and fishery culture technical field, concretely relates to a kind of offshore wind, fish fusion tension leg floating wind power platform. BACKGROUND

[0002] With the increasing frequency of shipping, leisure tourism, offshore wind energy development, offshore aquaculture, offshore oil and gas exploitation and other activities, the competition for sea space resources intensifies, and the intensive development and utilization of sea space is the trend of future development. At present, the focus of China's offshore wind power development is mainly in shallow sea areas with a water depth of less than 50m, and fixed foundation types such as single pile foundation, jacket foundation and cylinder foundation are mostly used. With the increase of water depth, the construction difficulty and construction cost of fixed foundation increase sharply, thus promoting the development of floating platform foundation in deep sea scenarios, and the typical floating platform foundation types can be divided into four categories: single column type (Spar), semi-submersible type (Semi-submersible), barge type (Barge) and tension leg type (TLP).

[0003] Compared with semi-submersible type, tension leg floating wind power equipment uses less steel, has good stability, occupies less sea area, is convenient to remove and maintain, does not need active ballast system, has high degree of mass production, is friendly to the environment and other characteristics, and is increasingly concerned by countries around the world. Tension leg offshore floating wind power platform structures are various, including traditional type, Neptune type, triangular or quadrangular truss structure, tower-free type, etc. In the existing triangular truss structure tension leg offshore floating wind power platform, the support truss structure, corner point buoy and wind turbine tower are connected by many rod systems, there are many nodes, there is a fatigue risk at the nodes, and the overall flat degree of electricity cost is high. On the other hand, the floating platform and anchoring foundation of the existing floating wind power equipment are installed separately, which further increases the installation difficulty and construction cost, and most of the floating wind power platforms occupy a large sea area.

[0004] In order to solve the problems of high construction cost, large installation and removal difficulty and large sea area occupation in the prior art, the structure of the tension leg floating wind power platform needs to be improved to solve the current technical problems. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a kind of offshore wind, fish fusion tension leg floating wind power platform, and the integrated development mode of wind and fish can convert wind energy into electric energy, which can supply power to aquaculture equipment on one hand, and can transmit the remaining electric energy to the shore through cable to supply power to land equipment on the other hand, which can not only reduce cost but also maximize the utilization of sea space.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a sea wind, fish fusion tension leg floating wind power platform, including upper fan, platform foundation and anchoring foundation, its characterized in that, the upper fan includes fan blade, cabin, hub, upper tower drum, middle tower drum and bottom tower drum, the fan blade is fixedly connected in the hub, the hub is rotatably connected in the cabin, the cabin is connected in the top of upper tower drum, upper tower drum, middle tower drum and bottom tower drum are fixedly connected in order coaxially.

[0007] The platform foundation includes a main body, the top of the main body is provided with a bearing platform, the bottom end of the bottom tower drum is fixedly connected to the bearing platform, the bottom of the main body is connected with a plurality of corner point pontoons, the bearing platform is provided with an auxiliary component along the circumference, the auxiliary component is detachably connected with a plurality of anchor machines along the circumference, and the plurality of anchor machines are all wound with anchor chains.

[0008] The anchoring foundation includes a ballast component, and the anchor chains are connected to the ballast component after being led out from the anchor machines.

[0009] In order to better realize the utility model, the main body is a tetrahedron structure, which is assembled by six rods as edges and four nets as faces, one of the faces of the main body is horizontally placed as a bottom face, three corner points of the bottom face are all fixedly connected with one of the connecting devices, and each connecting device is connected with two corner point pontoons; the bearing platform is fixedly connected to the corner point of the main body relative to the bottom face.

[0010] In order to better realize the utility model, the auxiliary component is connected with three groups of upper guide pulleys, each group of upper guide pulleys is provided with two, the anchor machines are provided with three and correspond to the positions of the three groups of upper guide pulleys one by one, each anchor machine is wound with two anchor chains, and the two anchor chains are respectively wound on the corresponding two upper guide pulleys after being led out from the anchor machine.

[0011] In order to better realize the utility model, each connecting device is connected with two lower guide pulleys and two top tendon connectors, and each group of anchor chains is wound out from two upper guide pulleys, is respectively wound on two lower guide pulleys, and is respectively threaded on two top tendon connectors.

[0012] In order to better realize the utility model, the ballast component includes a circular ballast component, three full rectangular ballast components are fixedly arranged on the circular ballast component along the circumference, the three full rectangular ballast components correspond to the three connecting devices respectively, and two bottom tendon connectors are arranged on the ends, away from the circular ballast component, of the three rectangular ballast components.

[0013] The ballast member is of hollow structure, and a plurality of sub-division plates are arranged inside, the plurality of sub-division plates divide the ballast member into a plurality of cabins, each cabin is provided with a water valve and an air valve, and an air bag is arranged in each cabin in the circular ballast member, the air bag is closely attached to the cabin side wall when not filled with water, and the air bag is separated from the cabin side wall when filled with water.

[0014] The bottom surface of the circular ballast member and the bottom surface of the one end of the rectangular ballast member away from the circular ballast member are both provided with positioning piles.

[0015] Beneficial effects:

[0016] The offshore wind and fish integrated tension leg floating wind power platform combines the floating platform foundation and the culture net cage, the platform foundation mainly provides buoyancy and supports the upper wind turbine, the netting provides space for fish culture, the anchoring foundation is mainly used for fixing the whole wind-fish integrated platform, greatly improves the use rate of the sea area, reduces the overall cost, the float provided at the corner point can make the platform have good stability, ensures wet towing transportation installation, the floating platform foundation structure type is simple, can be modularized, batch manufactured, assembled in a dock or a wharf, can be enlarged or reduced according to the power of the wind turbine. Meanwhile, the upper wind turbine, the floating foundation platform and the anchoring foundation can be assembled in a wharf or a dock, integrally installed after wet towing transportation to the site, has the advantages of convenient transportation and installation, short construction period, convenient platform post-tensioning, small number of ship and machine equipment used, relatively small requirement for the geological conditions of the site to be installed and the like. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a perspective view and partial structure detail view of the offshore wind and fish integrated tension leg floating wind power platform of the utility model;

[0018] Figure 2 is an enlarged view of A of the utility model;

[0019] Figure 3 is an enlarged view of B of the utility model;

[0020] Figure 4 is an enlarged view of C of the utility model;

[0021] Figure 5 is a ballast member structure view of the utility model;

[0022] Figure 6 is a towing schematic view of the offshore wind and fish integrated tension leg floating wind power platform of the utility model;

[0023] Figure 7 is a pre-ballast schematic view of the gravity type anchoring foundation of the offshore wind and fish integrated tension leg floating wind power platform of the utility model after being positioned.

[0024] Figure 8 is a gravity type anchoring foundation ballast process schematic diagram after the offshore wind, fish fusion tension leg floating wind power platform is in place.

[0025] Figure 9 is a gravity type anchoring foundation ballast completion bottom touch schematic diagram of the offshore wind, fish fusion tension leg floating wind power platform.

[0026] Figure 10 is a gravity type anchoring foundation ballast completion adjusting floating platform draft schematic diagram of the offshore wind, fish fusion tension leg floating wind power platform.

[0027] In the figure: 1, upper fan; 101, fan blade; 102, cabin; 103, hub; 2, upper tower; 3, middle tower; 4, bottom tower; 5, main body; 501, rod; 502, net clothes; 6, bearing platform; 7, accessory component; 8, anchor machine; 9, anchor chain; 10, upper guide pulley; 11, connecting device; 12, corner point buoy; 13, lower guide pulley; 14, top tendon connector; 15, ballast component; 1501, circular ballast component; 1502, rectangular ballast component; 1503, sub-division plate; 1504, cabin; 16, bottom tendon connector; 17, positioning pile; 18, air valve; 19, water valve; 20, air bag; 21, cable; 22, tug; 23, water surface; 24, seabed. DETAILED DESCRIPTION

[0028] EMBODIMENT

[0029] As Figure 1 - Figure 6 shown, an offshore wind, fish fusion tension leg floating wind power platform, including upper fan 1, platform foundation and anchoring foundation, upper fan 1 includes tower, cabin 102, hub 103 and fan blade 101, tower is segmented and made, is assembled by bottom tower 4, middle tower 3 and upper tower 2, fan blade 101 is fixedly connected to hub 103, hub 103 is rotatably connected to cabin 102, cabin 102 is connected to the top end of tower.

[0030] Platform foundation includes main body 5, and main body 5 is tetrahedron structure, is assembled by six rods 501 as edge and four net clothes 502 as face, one of the faces of main body 5 is horizontally placed as bottom face, and three corner points of bottom face are all fixedly connected with one connecting device 11, each connecting device 11 is connected with two corner point buoys 12;Bearing platform 6 is fixedly connected to the corner point of main body 5 relative to bottom face.

[0031] The top of the main body 5 is provided with a bearing platform 6, the bottom end of the bottom tower cylinder 4 is fixedly connected to the bearing platform 6, the bearing platform 6 is provided with an accessory component 7 in the circumferential direction, the accessory component 7 is connected with a plurality of anchor winches 8 in the circumferential direction by means of buckling, convenient for disassembly and secondary use, two anchor chains 9 are wound around each anchor winch 8, the anchor chain 9 is one of tendon materials, the tendon material can be selected from the group consisting of the anchor chain 9, synthetic fiber and combinations thereof, the accessory component 7 is connected with three groups of upper guide pulleys 10, each group of the upper guide pulleys 10 is provided with two, the anchor winch 8 is provided with three and corresponds to the positions of the three groups of the upper guide pulleys 10 one by one, the two anchor chains 9 are wound around the two upper guide pulleys 10 respectively after being led out from the anchor winch 8.

[0032] The three connecting devices 11 are connected with two lower guide pulleys 13 and two top tendon connectors 14 respectively, after each group of the anchor chains 9 is led out from the two upper guide pulleys 10, the anchor chains 9 are wound around the two lower guide pulleys 13 respectively and then are connected to the two top tendon connectors 14 respectively, the anchor chain 9 between the top tendon connector 14 and the anchor winch 8 is a reserved section, the floating wind power platform can be tensioned by the anchor winch 8 in the later stage, which greatly reduces the tensioning difficulty of the tension leg platform.

[0033] The anchoring foundation comprises a ballast component 15, the ballast component 15 comprises a circular ballast component 1501, three full-equivalent rectangular ballast components 1502 are fixedly arranged on the circular ballast component 1501 in the circumferential direction, the three full-equivalent rectangular ballast components 1502 correspond to the three connecting devices 11 respectively, two bottom tendon connectors 16 are arranged on the ends of the three rectangular ballast components 1502 away from the circular ballast component 1501, and each group of the anchor chains 9 is connected to two corresponding bottom tendon connectors 16 after being led out from the two top tendon connectors 14; the ballast component 15 is a hollow structure, a plurality of partition plates 1503 are arranged in the interior, the ballast component 15 is divided into a plurality of cabins 1504 by the plurality of partition plates 1503, a water valve 19 and an air valve 18 are arranged in each cabin 1504, an air bag 20 is arranged in each cabin 1504 in the circular ballast component 1501, the air bag 20 is closely attached to the side wall of the cabin 1504 when not being filled with water, and the air bag 20 is separated from the side wall of the cabin 1504 when being filled with water.

[0034] Positioning piles 17 are arranged on the bottom surface of the circular ballast component 1501 and the bottom surface of the end of the rectangular ballast component 1502 away from the circular ballast component 1501.

[0035] The working principle of the embodiment is summarized as follows:

[0036] The first step involves prefabricating corner pontoons 12, rods 501, connecting devices 11, foundations 6, auxiliary components 7, netting 502, tendon connectors, ballast components 15, bottom towers 4, middle towers 3, upper towers 2, wind turbine blades 101, nacelles 102, hubs 103, etc., in the factory.

[0037] The second step is to assemble the platform foundation. After assembling the corner pontoons 12, connecting devices 11, rods 501, bearing platforms 6, netting 502, and top tendon connectors 14, the main frame 5 of the platform foundation is formed.

[0038] The third step is to use a crawler crane to lift the assembled platform foundation onto the anchoring foundation where the bottom tendon connector 16 has been installed, and to ensure that all bolt holes are aligned.

[0039] The fourth step involves using a crawler crane to hoist the auxiliary components 7 and the anchor winch 8 in sequence, and welding three sets (six in total) of upper guide pulleys 10 onto the auxiliary components 7, and welding three sets (six in total) of lower guide pulleys 13 onto the connecting device 11.

[0040] Fifth step: Install the anchor chain 9 between the anchor winch 8 and the anchor foundation.

[0041] Step 6: After the above components are installed, there is still a certain gap between the platform foundation connection device 11 and the anchor foundation, and the anchor chain 9 is in a non-stressed state. Start the anchor winch 8 to fix the platform foundation and the anchor foundation into a whole through the tension of the anchor chain 9.

[0042] The seventh step involves loading the assembled platform foundation and anchoring foundation onto a semi-submersible barge via roll-on / roll-off. The semi-submersible barge then transports the platform foundation and anchoring foundation to the designated waters and launches them.

[0043] Step 8, as Figure 6 As shown, the platform foundation is connected to the tugboat 22 by two cables 21. The tugboat 22 tows the platform foundation to the dock. The platform foundation is fixed to the dock by cables 21 between the dock piles and the platform foundation. A temporary ballast water tank can be installed on the platform foundation to enhance stability.

[0044] The ninth step involves sequentially hoisting the bottom tower 4, middle tower 3, upper tower 2, nacelle 102, hub 103, and three wind turbine blades 101, which were transported to the dock, onto the platform foundation.

[0045] Step 10: Use tugboat 22 to tow the platform foundation and anchor foundation together to the machine location. After positioning, prepare for the integrated installation of the gravity anchor foundation.

[0046] Step 11, as follows Figure 7 The aforementioned adjustment of the floating wind power platform's attitude and the draft of its foundation ensures it has a certain safe capacity.

[0047] Step 12, as follows Figures 8-10 As shown, the air inlet / outlet valve 18 is opened, and water is injected into the compartment 1504 through the water inlet / outlet valve 19 to preload the anchoring foundation, so that the anchoring foundation gradually separates from the platform foundation. Since there are many compartments 1504 inside the anchoring foundation, the whole process can be carried out smoothly and slowly.

[0048] The thirteenth step is to continuously adjust the ballast and level the anchoring foundation during the pre-ballasting process until the anchoring foundation contacts the seabed 24.

[0049] Step 14: Level the anchoring foundation to ensure it is in full contact with the seabed 24 and that the contact posture is within a reasonable range.

[0050] Step 15: Adjust the length of the anchor chain 9 using the anchor winch 8 to pre-tension the tension tendon, ensuring the tendon is taut and the floating platform maintains a proper posture.

[0051] Step sixteen: Continue to adjust the length of anchor chain 9 and ballast the platform foundation so that most of the platform foundation is submerged below sea level 23.

[0052] The seventeenth and final step is to release the fish, completing the installation of the wind-fish integrated tension leg floating wind power platform.

[0053] Step 18: During the recovery phase, the ballast water can be discharged by inflating the airbag 20 through the air inlet / outlet valve 18, thereby realizing the recovery of the platform.

[0054] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A marine wind, fish integrated tension leg floating wind power platform, comprising an upper wind turbine (1), a platform foundation and an anchoring foundation, characterized in that, The upper fan (1) comprises fan blades (101), a nacelle (102), a hub (103), an upper tower drum (2), a middle tower drum (3) and a bottom tower drum (4), the fan blades (101) are fixedly connected to the hub (103), the hub (103) is rotatably connected to the nacelle (102), the nacelle (102) is connected to the top end of the upper tower drum (2), and the upper tower drum (2), the middle tower drum (3) and the bottom tower drum (4) are coaxially and fixedly connected in sequence. The platform foundation comprises a main body (5), the top of the main body (5) is provided with a bearing platform (6), the bottom end of the bottom tower drum (4) is fixedly connected to the bearing platform (6), the bottom of the main body (5) is connected with a plurality of corner point pontoons (12), the bearing platform (6) is provided with an auxiliary component (7) in the circumferential direction, the auxiliary component (7) is detachably connected with a plurality of anchor winches (8) in the circumferential direction, and a plurality of anchor chains (9) are wound on the anchor winches (8). The anchoring foundation comprises a ballast component (15), and the anchor chains (9) are connected to the ballast component (15) after being led out from the anchor winches (8).

2. The offshore wind and fish combined tension leg floating wind power platform according to claim 1, characterized in that, The main body (5) is a tetrahedron structure, which is assembled by six bars (501) as edges and four meshes (502) as faces, one of the faces of the main body (5) is horizontally placed as a bottom face, three corner points of the bottom face are fixedly connected with one connecting device (11), and each connecting device (11) is connected with two corner point pontoons (12); and the bearing platform (6) is fixedly connected to the corner points of the main body (5) relative to the bottom face.

3. The hybrid tension leg platform of claim 2, wherein, The auxiliary component (7) is connected with three groups of upper guide pulleys (10), each group of the upper guide pulleys (10) is provided with two upper guide pulleys (10), the anchor winches (8) are provided with three anchor winches (8) and correspond to the positions of the three groups of upper guide pulleys (10) in one-to-one correspondence, each anchor winch (8) is wound with two anchor chains (9), and the two anchor chains (9) are wound on the corresponding two upper guide pulleys (10) after being led out from the anchor winch (8).

4. The hybrid tension leg platform of claim 3, wherein, Each connecting device (11) is connected with two lower guide pulleys (13) and two top tendon connectors (14), each group of anchor chains (9) is led out from the two upper guide pulleys (10), wound on the two lower guide pulleys (13) respectively, and then threaded through the two top tendon connectors (14) respectively.

5. The hybrid tension leg platform of claim 4, wherein, The ballast component (15) comprises a circular ballast component (1501), three congruent rectangular ballast components (1502) are fixedly arranged on the circular ballast component (1501) in the circumferential direction, the three congruent rectangular ballast components (1502) correspond to the three connecting devices (11) respectively, and two bottom tendon connectors (16) are arranged on the ends of the three rectangular ballast components (1502) away from the circular ballast component (1501); each group of anchor chains (9) is connected to the two corresponding bottom tendon connectors (16) after being led out from the two top tendon connectors (14).

6. The hybrid tension leg platform of claim 5, wherein, The ballast member (15) is a hollow structure, and a plurality of bulkhead plates (1503) are arranged inside the ballast member (15), the plurality of bulkhead plates (1503) separate the ballast member (15) into a plurality of cabins (1504), each cabin (1504) is provided with a water valve (19) and an air valve (18), and each cabin (1504) in the circular ballast member (1501) is provided with an air bag (20), the air bag (20) is closely attached to the side wall of the cabin (1504) when no water is injected, and the air bag (20) is separated from the side wall of the cabin (1504) when water is injected.

7. The hybrid tension leg platform of claim 6, wherein, The bottom surface of the circular ballast member (1501) and the bottom surface of the end of the rectangular ballast member (1502) away from the circular ballast member (1501) are both provided with a positioning pile (17).

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