CN210766857U - Floating foundation of offshore wind turbine with combined jacket and floating barrel - Google Patents

Floating foundation of offshore wind turbine with combined jacket and floating barrel Download PDF

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Publication number
CN210766857U
CN210766857U CN201921522279.4U CN201921522279U CN210766857U CN 210766857 U CN210766857 U CN 210766857U CN 201921522279 U CN201921522279 U CN 201921522279U CN 210766857 U CN210766857 U CN 210766857U
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China
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buoy
offshore wind
foundation
central
conduit
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CN201921522279.4U
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Chinese (zh)
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毋晓妮
李晔
段磊
廖倩
章丽骏
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Shanghai Jiaotong University
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Shanghai Jiaotong University
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Abstract

The utility model discloses a jacket and buoy combined floating foundation of an offshore wind turbine, which comprises a plurality of jacket parts, a central buoy, a circumferential buoy, a mooring system and an anchoring foundation; the end parts of the plurality of conduit parts are mutually connected and arranged at the outer side of the central buoy, a circumferential buoy is arranged on each conduit part, and a support part is arranged between each conduit part and the central buoy to form a conduit frame structure; the anchoring foundation is installed below the central buoy in an inclined mode, the mooring system is connected with the anchoring foundation and the central buoy, and the supporting component is installed between the corner of the jacket structure and the central buoy. The utility model discloses main beneficial effect: the utility model provides a novel marine fan floating basis of jacket and flotation pontoon combination formula that is suitable for deep water wind-powered electricity generation development. The structure is optimized, the structure weight is reduced, and the motion performance is improved. The resistance of the floating type fan foundation to the complex offshore wind wave flow load is improved. The structure is simple, the stability is good, the installation is easy, and the cost of the floating foundation and offshore wind power development is reduced.

Description

Floating foundation of offshore wind turbine with combined jacket and floating barrel
The technical field is as follows:
the utility model relates to a floating offshore wind turbine supports basic field, concretely relates to jacket and flotation pontoon combination formula's offshore wind turbine floating basis.
Background art:
wind energy is a green energy source, and the main utilization form of the wind energy is wind power generation. At present, the development of land wind power and offshore wind power all have a certain scale globally. Compared with land wind energy, ocean wind energy has the advantages of high quality, stability and low interference degree. However, due to the particularity of the marine environment, the development speed and scale of offshore wind power are still a certain gap compared with onshore wind power. According to statistics, the total wind power exploitable reserve in China is about 1000GW, wherein 250GW is offshore wind power. By the end of 2018, the global wind power total installed capacity is 592GW, wherein the offshore wind power installed capacity is 23GW, and the occupation ratio is only about 4%. The newly increased installed capacity of the offshore wind power in 2018 is 4.5GW, China surpasses British and Germany for the first time, and the newly increased installed capacity of the offshore wind power of 1.8GW is leading; however, at the end of 2018, the offshore wind power total installed capacity still stays in the third place in China. Offshore wind power development is still an important hotspot for future new energy development in China.
At present, offshore wind power development is mainly focused on shallow water near-shore areas with the water depth of less than 50m, and most of wind turbines of the offshore wind power development adopt fixed wind turbine foundations such as gravity foundations, single piles, jacket foundations and the like.
With the increase of water depth, the economy and stability of the fixed fan foundations are deteriorated, and the floating fan foundations are required to be adopted to develop deep-water wind power. After the concept of floating offshore wind turbines was proposed in 1972, with the development of floating platforms in the offshore oil and gas industry, 3 main types of floating wind turbine foundations, namely semi-submersible type, Spar and tension leg type, gradually appeared. But all are in the development stage at present, and the cost advantage and the applicability are not completely clear.
Therefore, the floating offshore wind turbine foundation has the advantages of good research economy, simple structure, convenience in installation, good stability and good movement performance, and has important significance in effectively resisting complex wind and wave loads under extreme sea conditions.
The utility model has the following contents:
the utility model aims to provide a jacket and float bowl combined floating foundation of an offshore wind turbine against the defects of the prior art, which comprises a plurality of conduit parts, a central float bowl, a circumferential float bowl, a mooring system and an anchoring foundation; the end parts of the plurality of conduit parts are mutually connected and arranged at the outer side of the central buoy, a circumferential buoy is arranged on each conduit part, and a support part is arranged between each conduit part and the central buoy to form a conduit frame structure; the anchoring foundation is installed obliquely below the central buoy, the mooring system connects the anchoring foundation and the corner points of the jacket structure, and the supporting component is installed between the corner points of the jacket structure and the central buoy.
In one embodiment, the jacket structure constitutes a triangular prism or hexahedral structure.
In one embodiment, the central buoy is a cylindrical hollow ring structure and is arranged at the center inside the structure of the triangular prism or hexahedron structure, one or a combination of a floating cabin, a variable ballast cabin, an energy storage cabin and a control cable cabin can be arranged inside the central buoy, and a cable is arranged at the bottom of the central buoy.
In one embodiment, the inner ring diameter of the hollow annular structure is slightly larger than the diameter of the conduit member; the catheter member may be sleeved over the catheter member by a coupling device.
In one embodiment, one or more of said circumferential pontoons may be distributed evenly over the duct member.
In one embodiment, the support members are mounted diagonally between the corner points of the bottom of the jacket structure and the central buoy at an angle in the range of 10 ° to 60 ° to the central buoy.
In one embodiment, the central buoy is connected with the fan tower through a fan tower connecting section, and the upper part of the fan tower is connected with the fan.
In one embodiment, the corner points at the bottom of the jacket structure set the mooring points of the mooring system.
In one embodiment, the support member is a conduit member.
Mainly have following advantage and beneficial effect:
(1) the novel floating foundation of the offshore wind turbine with the combination of the jacket and the buoy is suitable for deep-water wind power development;
(2) the structure is optimized, the weight of the structure is reduced, and the motion performance is improved;
(3) the resistance of the floating type fan foundation to the complex offshore wind wave flow load is improved;
(4) the structure is simple, the stability is good, the installation is easy, and the cost of the floating foundation and offshore wind power development is reduced.
Description of the drawings:
fig. 1 illustrates a side view of a jacket and pontoon combination offshore wind turbine floating foundation, in accordance with an embodiment of the present invention;
fig. 2 illustrates a top view of a floating foundation of an offshore wind turbine with a jacket and a pontoon combination according to another embodiment of the present invention;
fig. 3 is a schematic perspective view of a floating foundation of an offshore wind turbine with a combination of a jacket and a buoy according to another embodiment of the present invention.
Wherein 1-central buoy, 2-horizontal support member, 3-circumferential buoy, 4-diagonal support member, 5-mooring system, 6-cable, 7-anchoring foundation, 8-floating tank, 9-energy storage tank, 10-control cable tank, 11-variable ballast tank, 12-wind turbine tower, 13-wind turbine, 14-end of conduit member, 15-conduit member, 16-corner of jacket structure, 161-corner of jacket structure bottom.
The specific implementation mode is as follows:
the above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings, in which like reference numerals refer to like features throughout, and in which:
referring to fig. 1 in conjunction with fig. 2 and 3, fig. 1 illustrates a side view of a floating foundation of an offshore wind turbine with a combined jacket and buoy according to an embodiment of the present invention. Fig. 2 shows a top view of a floating foundation of an offshore wind turbine with a jacket and a pontoon combination according to another embodiment of the present invention. Fig. 3 is a schematic perspective view of a floating foundation of an offshore wind turbine with a combination of a jacket and a buoy according to another embodiment of the present invention.
In fig. 1, a jacket and buoy combined offshore wind turbine floating foundation comprises a plurality of conduit parts 15, a central buoy 1, a circumferential buoy 3, a mooring system 5 and an anchoring foundation 7; wherein, the end parts 14 (refer to fig. 2) of a plurality of conduit parts are mutually connected and arranged at the outer side of the central buoy 1, the circumferential buoy 3 is arranged on each conduit part 15, and a support part is arranged between the conduit part 15 and the central buoy 1 to form a conduit frame structure; the anchoring base 7 is mounted obliquely below the central buoy, the mooring system 5 connects the anchoring base 7 with the corner points of the jacket structure, and support members are mounted between the corner points 16 of the jacket structure and the central buoy 1 (see fig. 3).
Preferably, the jacket structure may constitute a triangular prism or hexahedral structure and other polyhedral forms.
As a more preferable technical feature, the jacket structure may constitute a regular triangular prism or a regular hexahedral structure.
Preferably, the central buoy 1 is a cylindrical hollow ring structure and is arranged at the center inside the structure of a triangular prism or a hexahedral structure, one or a combination of a floating chamber 8, a variable ballast chamber 11, an energy storage chamber 9 and a control cable chamber 10 can be arranged inside the central buoy 1, and the cable 6 is installed at the bottom of the central buoy 1.
It will be appreciated that the above-described,
preferably, the inner ring diameter of the hollow annular structure is slightly larger than the diameter of the conduit member; the catheter component can be sleeved with a connecting device (not marked in the figure).
Preferably, one or more of said circumferential pontoons 3 are distributed evenly over the conduit part 15.
Preferably, the support member 4 is mounted obliquely between the corner point 161 of the bottom of the jacket structure and the central buoy 1 at an angle in the range of 10 ° to 60 ° to the central buoy 1.
Preferably, the central buoy is connected with the fan tower cylinder through the fan tower cylinder connecting section, and the upper part of the fan tower cylinder is connected with the fan.
Preferably, the corner points 161 at the bottom of the jacket structure set the mooring points of the mooring system.
Preferably, the support member may be a conduit member.
It is understood that the support member is connected to the other members by welding;
it is understood that the number of diagonal support members may correspond to 3 or 4;
it will be appreciated that a combination of a jacket and buoy is anchored at the sea bed in its entirety by catenary or taut mooring through a variety of novel marine anchoring foundations.
The technical scheme of the utility model provides a jacket and float bowl combined type novel offshore wind turbine floating foundation, which improves the resistance of the floating wind turbine foundation to the complex sea storm flow load and improves the motion performance of the floating wind turbine by adopting the mode of combining the jacket and a plurality of float bowls; the structure is simple, the stability is good, the installation is easy, the cost of the floating foundation and offshore wind power development is reduced, and the floating foundation is a novel offshore wind turbine floating foundation form. Meanwhile, the problems that the existing floating offshore wind turbine supporting foundation is lack in type, high in cost and insufficient in extreme sea condition resistant complex load capacity are effectively solved.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, the technical scheme and the embodiments similar to the technical scheme should be designed without creativity without departing from the spirit of the present invention, and the scope of the present invention should be protected.

Claims (9)

1. The utility model provides a jacket and flotation pontoon combination formula offshore wind turbine floating basis which characterized in that: the mooring device comprises a plurality of conduit parts, a central buoy, a circumferential buoy, a mooring system and an anchoring foundation; wherein the content of the first and second substances,
the end parts of the plurality of conduit parts are mutually connected and arranged at the outer side of the central buoy, a circumferential buoy is arranged on each conduit part, and a support part is arranged between each conduit part and the central buoy to form a conduit frame structure; the anchoring foundation is installed obliquely below the central buoy, and the mooring system connects the anchoring foundation and the corner points of the jacket structure.
2. The offshore wind turbine floating foundation of claim 1, wherein: the jacket structure constitutes a triangular prism or hexahedron structure.
3. The offshore wind turbine floating foundation of claim 2, wherein: the utility model discloses a three-dimensional floating pontoon, including central flotation pontoon, triangular prism or hexahedron structure, central flotation pontoon is cylindrical cavity loop configuration, establishes the inside center of structure of triangular prism or hexahedron structure, the inside of central flotation pontoon can set up one of floating deck, variable ballast tank, energy storage cabin, control cable cabin or combination the bottom installation cable of central flotation pontoon.
4. The offshore wind turbine floating foundation of claim 3, wherein: the diameter of the inner ring of the hollow annular structure is slightly larger than the diameter of the conduit part; the catheter member may be sleeved over the catheter member by a coupling device.
5. The offshore wind turbine floating foundation of claim 1, wherein: one or more circumferential pontoons may be distributed evenly on the conduit member.
6. The offshore wind turbine floating foundation of claim 1, wherein: the support component is obliquely arranged between the corner point at the bottom of the jacket structure and the central buoy, and the included angle between the support component and the central buoy ranges from 10 degrees to 60 degrees.
7. The offshore wind turbine floating foundation of claim 1, wherein: the central buoy is connected with the fan tower cylinder through the fan tower cylinder connecting section, and the upper part of the fan tower cylinder is connected with the fan.
8. The offshore wind turbine floating foundation of claim 1, wherein: and the angular point at the bottom of the jacket structure is provided with a mooring point of a mooring system.
9. The offshore wind turbine floating foundation of claim 1, wherein: the support member is a conduit member.
CN201921522279.4U 2019-09-09 2019-09-09 Floating foundation of offshore wind turbine with combined jacket and floating barrel Active CN210766857U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921522279.4U CN210766857U (en) 2019-09-09 2019-09-09 Floating foundation of offshore wind turbine with combined jacket and floating barrel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921522279.4U CN210766857U (en) 2019-09-09 2019-09-09 Floating foundation of offshore wind turbine with combined jacket and floating barrel

Publications (1)

Publication Number Publication Date
CN210766857U true CN210766857U (en) 2020-06-16

Family

ID=71060073

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921522279.4U Active CN210766857U (en) 2019-09-09 2019-09-09 Floating foundation of offshore wind turbine with combined jacket and floating barrel

Country Status (1)

Country Link
CN (1) CN210766857U (en)

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