CN210455138U - Semi-submersible foundation for carrying offshore floating type wind turbine group - Google Patents
Semi-submersible foundation for carrying offshore floating type wind turbine group Download PDFInfo
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- CN210455138U CN210455138U CN201921082204.9U CN201921082204U CN210455138U CN 210455138 U CN210455138 U CN 210455138U CN 201921082204 U CN201921082204 U CN 201921082204U CN 210455138 U CN210455138 U CN 210455138U
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Abstract
The utility model discloses a semi-submersible foundation for carrying an offshore floating fan group, relating to the technical field of ocean engineering equipment and comprising an annular buoy carrier, a supporting beam, a main fan upright post base, a main fan upright post, an auxiliary fan upright post and a fan fixing device, the main fan upright post base is arranged at the center of the annular buoy carrier, the main fan upright post is arranged on the main fan upright post base, the annular buoy carrier comprises auxiliary fan stand column bases and rectangular section buoys, the rectangular section buoys are uniformly arranged between the auxiliary fan stand column bases at intervals, the supporting beam is arranged among the auxiliary fan upright post base, the auxiliary fan upright post and the main fan upright post base, the auxiliary fan stand column is arranged on the auxiliary fan stand column base, and the main fan stand column and the auxiliary fan stand column are respectively provided with the fan fixing devices. The utility model discloses can effectively reduce offshore wind power generation cost, improve the generating efficiency greatly.
Description
Technical Field
The utility model relates to an ocean engineering equips technical field, especially relates to a semi-submerged formula basis for carrying on marine floating fan crowd.
Background
Wind energy is a clean renewable energy source, and many countries in the world pay attention to the development and utilization of wind power, and have already begun to build offshore wind farms to develop wind power more efficiently and on a large scale, and offshore wind power has become the inevitable trend of future wind power development. Now, the cost of wind power generation has dropped to 1/5 in 1980. With the development of technical progress and environmental protection, wind power generation will be commercially fully competitive with coal burning. At present, the development of offshore wind power plants at home and abroad is limited to shallow sea, most of the used foundation structures are fixed foundations, and the research on the dynamic response technology of the fixed foundation platform is mature.
The floating foundation is a deep sea structure form of an offshore wind turbine foundation structure, is mainly used in a water depth sea area with the depth of more than 50m, belongs to a flexible supporting structure, and can effectively reduce the natural frequency of a system and increase the damping of the system. In consideration of seawater depth and economy, a deep sea wind farm generally adopts a floating foundation. The floating foundation is divided into a single-fan type and a multi-fan type (i.e. a fan group) according to the number of installed fans.
At present, the floating foundation scheme mainly carries a single fan, the wind energy utilization rate is low, the cost performance for building a fan foundation is not high, the offshore wind power generation cost is greatly increased, and the multi-fan type platform still stays at the design stage. Moreover, the floating foundation has obvious nonlinear motion response, needs to bear larger wind wave flow load, has short service life due to poor safety, and is difficult to adapt to long-time wind power generation operation in deeper sea areas.
However, the research on semi-submersible floating foundations is relatively small, and most of them are shallow sea fixed foundations. The semi-submersible floating foundation for carrying the single fan is high in cost, mostly developed below 5MW, and low in power. Therefore, the economic type needs to be considered, and the construction difficulty is high, thereby having no market prospect.
Therefore, the technical personnel in the field are dedicated to develop a semi-submersible foundation which can carry a plurality of fans to generate power together and is suitable for a floating type fan group in a deeper sea area, so that the cost is reduced, and the offshore wind power generation efficiency is improved.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is (1) how to improve the stability and safety of the semi-submersible floating foundation in the working sea area, and avoid the problem of too large motion response of the floating foundation in the wave gathering range; (2) compared with the traditional semi-submersible floating foundation for carrying a single fan, the material utilization rate is improved, and the construction cost is saved; (3) how to solve the problem that the existing offshore wind power generation can only be applied offshore, expand the application range of the offshore wind power generation and greatly improve the capability and competitiveness of the wind power generation.
In order to realize the aim, the utility model provides a semi-submersible foundation for carrying an offshore floating fan group, which comprises an annular buoy carrier, a supporting beam, a main fan upright post base, a main fan upright post, an auxiliary fan upright post and a fan fixing device, wherein the main fan upright post base is arranged at the center of the annular buoy carrier, the main fan upright post is arranged on the main fan upright post base, the annular buoy carrier comprises auxiliary fan stand column bases and rectangular section buoys, the rectangular section buoys are uniformly arranged between the auxiliary fan stand column bases at intervals, the supporting beam is arranged among the auxiliary fan upright post base, the auxiliary fan upright post and the main fan upright post base, the auxiliary fan stand column is arranged on the auxiliary fan stand column base, and the main fan stand column and the auxiliary fan stand column are respectively provided with the fan fixing devices.
Furthermore, the diameter of the periphery of the annular buoy carrier is 100m, the buoy with the rectangular section is of a hollow structure, and the width and the height of the section are both more than or equal to 5 m.
Furthermore, the auxiliary fan stand column bases are 6 in number and distributed in a circular array, and the interval between every two adjacent auxiliary fan stand column bases is 60 degrees.
Furthermore, the auxiliary fan upright post base is of a cylindrical hollow structure, and the diameter of the cross section is more than or equal to 10 m.
Further, the auxiliary fan upright post is of a cylindrical structure, and the diameter of the cross section of the auxiliary fan upright post is 10 m.
Further, the main fan upright column base is cylindrical, the diameter of the cross section of the main fan upright column base is 12m, and the main fan upright column base is arranged on the same horizontal plane of the annular buoy carrier.
Furthermore, the main fan upright post is in a circular truncated cone shape, the diameter of the lower bottom surface is 12m, the diameter of the upper top surface is smaller than that of the lower bottom surface, and the height of the main fan upright post is larger than that of the auxiliary fan upright post.
Further, the main fan stand base and the main fan stand are of an integral structure.
Further, the number of the supporting beams between the main fan stand column base and each auxiliary fan stand column is 1, the number of the supporting beams between the main fan stand column base and each auxiliary fan stand column base is 1, the cross section of each supporting beam is circular, and the diameter of the cross section is 1.1 m.
Further, a main fan is arranged on the main fan stand column through a fan fixing device, an auxiliary fan is arranged on the auxiliary fan stand column through a fan fixing device, the semi-submersible foundation for carrying the offshore floating fan group is suitable for the deep sea field with the water depth larger than 60m, and the minimum draft depth is 20 m.
Compared with the prior art, the utility model discloses can be through carrying on a plurality of auxiliary blowers on the basis of semi-submerged formula annular flotation pontoon carrier to link to each other single main blower rather than, constitute the offshore wind turbine group basis that the owner combines with assisting, realize that a plurality of fans generate electricity simultaneously on a platform, the maximize utilizes the wind energy. The semi-submersible foundation of the floating fan group has the advantages that the fans are arranged at intervals, the mutual influence during working is minimized, the stability of the floating foundation can be ensured, and the good wave resistance of the foundation can be maintained during working in a deep water area (500 m).
The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.
Drawings
FIG. 1 is a schematic structural view of a preferred embodiment of the present invention;
fig. 2 is a schematic view of a wind turbine cluster according to a preferred embodiment of the present invention.
Wherein: the method comprises the following steps of 1-main fan, 2-auxiliary fan, 3-fan fixing device, 4-auxiliary fan stand column, 5-auxiliary fan stand column base, 6-main fan stand column, 7-main fan stand column base, 8-rectangular section buoy and 9-supporting cross beam.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings for clarity and understanding of the technical contents. The present invention may be embodied in many different forms of embodiments, and the scope of the invention is not limited to the embodiments described herein.
In the drawings, structurally identical elements are represented by like reference numerals, and structurally or functionally similar elements are represented by like reference numerals throughout the several views. The size and thickness of each component shown in the drawings are arbitrarily illustrated, and the present invention is not limited to the size and thickness of each component. The thickness of the components may be exaggerated where appropriate in the figures to improve clarity.
As shown in fig. 1-2, the semi-submersible foundation for carrying an offshore floating wind turbine group in this embodiment includes an annular pontoon carrier, a main wind turbine upright post base 7, a main wind turbine upright post 6, an auxiliary wind turbine upright post 4, and a supporting beam 9, where the main wind turbine upright post base 7 is located at the center of the annular pontoon carrier and is connected with the annular pontoon carrier and the auxiliary wind turbine upright post 4 through the supporting beam 9, so that the main and auxiliary wind turbines form a whole, and the structural strength is improved.
The annular buoy carrier comprises six auxiliary fan upright post bases 5 and a buoy 8 with a rectangular cross section, and the peripheral diameter of the annular buoy carrier is 100 m. The auxiliary fan stand column base 5 is of a cylindrical hollow structure, the diameter of the auxiliary fan stand column base is 10m, the auxiliary fan stand column base is used for assembling the auxiliary fan stand column and can serve as one part of the buoy to provide necessary buoyancy, the buoy 8 with the rectangular cross section is installed between the auxiliary fan stand column base bases 5 at intervals, the cross section width and the height of the buoy are 5m, and the hollow structure is also used for providing the most main buoyancy and restoring force of the whole fan foundation. The width of the rectangular section buoy 8 or the section of the auxiliary fan upright post base 5 can be properly increased, so that the heave damping is further improved, and the stability is increased.
The auxiliary fan upright post 4 is of a cylindrical structure, the diameter of the auxiliary fan upright post is 10m, and the auxiliary fan 2 is fixedly installed through the fan fixing device 3. The auxiliary fan stand column 4 is installed on the auxiliary fan stand column base 5, the auxiliary fan stand column base 5 is 6 in total and distributed in a circular array, and the adjacent auxiliary fan stand column bases 5 are spaced by 60 degrees.
The main fan upright post 6 is supported by a main fan upright post base 7, and the main fan 1 is installed through the fan fixing device 3. The main fan upright post base 7 is positioned on the same horizontal plane of the annular buoy carrier, is cylindrical and has the diameter of 12 m. The main fan upright post 6 is in a circular truncated cone shape, the height of the main fan upright post is required to be larger than that of the auxiliary fan upright post 4, the diameter of the lower bottom surface of the main fan upright post is 12m, and the diameter of the upper top surface of the main fan upright post is smaller than that of the lower bottom surface of the auxiliary fan upright post. The main fan column base 7 may also be part of the main fan column 6, i.e. not providing buoyancy, if the weight of the fan to be carried is low.
The supporting beams 9 are located between the auxiliary fan stand column bases 5, the auxiliary fan stand columns 4 and the central main fan stand column base 7, 12 supporting beams are arranged in total, the number of the supporting beams between the main fan stand column base 7 and each auxiliary fan stand column base 5 is 1, the number of the supporting beams between the main fan stand column base 7 and each auxiliary fan stand column 4 is 1, the cross section of the supporting beams is circular, the diameter of the supporting beams is 1.1m, the supporting beams are used for indirectly connecting the main fan stand column 6 and the auxiliary fan stand columns 4 on the periphery to form a semi-submersible foundation whole of the marine floating fan group, the main fan stand column 6 and the auxiliary fan stand columns 4 enable the fan to be assembled simply and conveniently, the fan can be far away from the sea surface, and power generation work is carried out at a.
In the time of practical use, the utility model discloses work in the sea area that the depth of water is about 500m, annular flotation pontoon carrier submergence provides required buoyancy of whole device, restoring force etc. in aqueous, and the main air fan stand 6 all exposes the surface of water with main air fan stand base 7, assistance fan stand 4 with assistance fan stand base 5, and the fan of being convenient for is in the cooperation electricity generation operation of higher department from the sea surface, and overall structure's rigidity can be guaranteed to supporting beam 9 for this floating fan crowd semi-submerged formula basis is unlikely to fracture or distortion etc. when the operation. The cross-sectional width of the rectangular cross-section buoy 8 can be changed along with the type of the carried fan and the general operation profile, so that sufficient stability wave resistance, torque recovery and the like are ensured. If the fan is heavy, the cross-sectional width of the rectangular-section pontoon 8 can be increased. The whole foundation is suitable for the field of ocean engineering and offshore wind turbines, one main wind turbine and six auxiliary wind turbines can operate simultaneously, and the power generation efficiency is greatly improved.
The utility model is suitable for a deep sea field (the depth of water is greater than 60m, and the minimum degree of depth of draught is 20m), can carry on a main fan to carry on a plurality of auxiliary fans around it, make whole basis have the function of a plurality of fans electricity generation in coordination, also avoided the problem of mutual interference. Through hydrodynamic force calculation demonstration, the utility model discloses can guarantee the stability of whole basis and fan group, can improve economic nature for single fan formula basis save material again.
The foregoing has described in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the teachings of this invention without undue experimentation. Therefore, the technical solutions that can be obtained by a person skilled in the art through logic analysis, reasoning or limited experiments based on the prior art according to the concepts of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. The utility model provides a semi-submerged formula basis for carrying on marine floating fan group, a serial communication port, including annular flotation pontoon carrier, supporting beam, main blower stand base, main blower stand, assist fan stand, fan fixing device, wherein, main blower stand base set up in annular flotation pontoon carrier center, be provided with on the main blower stand base the main blower stand, annular flotation pontoon carrier is including assisting fan stand base and rectangular cross section flotation pontoon, the even interval of rectangular cross section flotation pontoon set up in assist between the fan stand base, supporting beam set up in assist between fan stand base, auxiliary blower stand and the main blower stand base, be provided with on the assistance fan stand base assist the fan stand, be provided with respectively on main blower stand and the assistance fan stand fan fixing device.
2. The semi-submersible foundation for carrying an offshore floating wind turbine installation as claimed in claim 1, wherein the diameter of the periphery of the ring-shaped pontoon carrier is 100m, the rectangular-section pontoon is a hollow structure, and the width and height of the section are both greater than or equal to 5 m.
3. The semi-submersible foundation for carrying an offshore floating wind turbine installation as claimed in claim 1, wherein the number of the auxiliary wind turbine upright bases is 6, and the auxiliary wind turbine upright bases are distributed in a circular array, and the adjacent auxiliary wind turbine upright bases are spaced by 60 degrees.
4. The semi-submersible foundation for carrying an offshore floating wind turbine group as recited in claim 3, wherein the auxiliary wind turbine column base is a cylindrical hollow structure with a cross-sectional diameter of 10m or more.
5. Semi-submersible foundation for carrying an offshore floating wind turbine installation according to claim 1, characterised in that the auxiliary wind turbine upright is of cylindrical construction with a cross-sectional diameter of 10 m.
6. The semi-submersible foundation for carrying an offshore floating wind turbine installation as claimed in claim 1, wherein the main wind turbine column base is cylindrical with a cross-sectional diameter of 12m and is disposed at the same level as the ring pontoon carrier.
7. The semi-submersible foundation for carrying an offshore floating wind turbine installation as claimed in claim 1, wherein the main wind turbine vertical column is a circular truncated cone, the diameter of the lower bottom surface is 12m, the diameter of the upper top surface is smaller than that of the lower bottom surface, and the height is larger than that of the auxiliary wind turbine vertical column.
8. The semi-submersible foundation for carrying an offshore floating wind turbine farm of claim 1, wherein the main wind turbine column base and the main wind turbine column are of unitary construction.
9. The semi-submersible foundation for carrying an offshore floating wind turbine installation as claimed in claim 1, wherein the number of support beams between the main wind turbine column base and each auxiliary wind turbine column is 1, the number of support beams between the main wind turbine column base and each auxiliary wind turbine column base is 1, the support beams are circular in cross section and 1.1m in diameter in cross section.
10. The semi-submersible foundation for carrying an offshore floating wind turbine group according to any one of claims 1 to 9, wherein the main wind turbine is arranged on the main wind turbine upright post through a wind turbine fixing device, the auxiliary wind turbine is arranged on the auxiliary wind turbine upright post through a wind turbine fixing device, the semi-submersible foundation for carrying the offshore floating wind turbine group is suitable for deep sea fields with water depth of more than 60m, and the minimum draft depth is 20 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921082204.9U CN210455138U (en) | 2019-07-11 | 2019-07-11 | Semi-submersible foundation for carrying offshore floating type wind turbine group |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921082204.9U CN210455138U (en) | 2019-07-11 | 2019-07-11 | Semi-submersible foundation for carrying offshore floating type wind turbine group |
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| CN210455138U true CN210455138U (en) | 2020-05-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282087A (en) * | 2019-07-11 | 2019-09-27 | 上海交通大学 | A kind of semi-submersible type basis for carrying offshore floating type draught fan group |
| CN113864128A (en) * | 2021-10-27 | 2021-12-31 | 上海电气风电集团股份有限公司 | Offshore wind turbine supporting structure and offshore wind turbine |
-
2019
- 2019-07-11 CN CN201921082204.9U patent/CN210455138U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110282087A (en) * | 2019-07-11 | 2019-09-27 | 上海交通大学 | A kind of semi-submersible type basis for carrying offshore floating type draught fan group |
| CN113864128A (en) * | 2021-10-27 | 2021-12-31 | 上海电气风电集团股份有限公司 | Offshore wind turbine supporting structure and offshore wind turbine |
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