CN217782119U - Double-cone grid plate type offshore wind power floating foundation structure - Google Patents
Double-cone grid plate type offshore wind power floating foundation structure Download PDFInfo
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- CN217782119U CN217782119U CN202220850635.0U CN202220850635U CN217782119U CN 217782119 U CN217782119 U CN 217782119U CN 202220850635 U CN202220850635 U CN 202220850635U CN 217782119 U CN217782119 U CN 217782119U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/727—Offshore wind turbines
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Abstract
The utility model discloses a double-cone grid plate type floating foundation structure for offshore wind power, including connecting seat and double-cone grid plate type stand, double-cone grid plate type stand and connecting seat fixed connection, double-cone grid plate type stand include a post section of thick bamboo portion and frustum portion, and the both ends of a post section of thick bamboo portion are located to frustum portion cover. The utility model discloses can increase the waterline face under the stormy wave operating mode, provide enough big restoring moment for the system, promote the motion stability of floating structure under the deep and deep sea adverse circumstances effectively.
Description
Technical Field
The utility model belongs to the technical field of offshore wind power development equipment, especially, relate to a double-cone grid tray formula floating foundation structure of offshore wind power.
Background
China is in a key stage of energy transformation, wind energy is used as renewable clean energy, the technology is mature day by day, the cost is reduced continuously, and the wind energy plays a significant role in new energy development in China. Offshore wind power generation has unique advantages over onshore wind power generation. The offshore wind resources are rich, and the wind speed and the wind direction are stable; the offshore wind power plant does not occupy land resources; the single machine has large capacity and is suitable for large-scale development. At present, the development of offshore fixed wind power is mainly industrialized, and some offshore wind power plants built in early stage are in the middle and later development stage. However, the development of floating wind power oriented to water depth over 50 m is still in experimental research stage both domestically and internationally. In the long run, with the gradual saturation of the development of wind power resources in intertidal zones and offshore regions, the development of offshore wind power from offshore to deep and open sea is an inevitable trend, and the research and development and design of the structure of the floating offshore wind power generator set are imperative.
The floating offshore wind turbine generator structure is a complex multi-system combined engineering device, consists of a plurality of subsystems and mainly comprises an upper fan, a middle tower, a lower floating foundation and a mooring system. The offshore wind turbine system belongs to a high-rise structure, the magnitude of horizontal load is equivalent to that of vertical load, and the action of horizontal overturning moment can cause the floating foundation to generate large-amplitude swinging movement and even overturn.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the above-mentioned technical problem that exists among the prior art, provide a double-cone grid plate-type marine wind power floating foundation structure, can increase the waterline face under the stormy wave operating mode, provide enough big restoring torque for the system, promote the motion stability of floating structure under deep and far sea adverse circumstances effectively.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the utility model provides a floating foundation structure of bipyramid grid tray formula offshore wind power which characterized in that: including connecting seat and bipyramid grid plate formula stand, bipyramid grid plate formula stand and connecting seat fixed connection, bipyramid grid plate formula stand includes cylinder portion and frustum portion, and the both ends of cylinder portion are located to frustum portion cover. Through bipyramid grid tray formula stand, can increase the waterline face under the stormy wave operating mode, for the system provides enough big restoring moment, promote the motion stability of floating structure under deep and far sea adverse circumstances effectively.
Further, the two frustum portions are disposed facing each other. The top surface of frustum portion sets up in opposite directions for the frustum of lower part is forward to be set up, and the frustum on upper portion becomes the reverse setting of back taper, and through the design of this kind of structure, the operating condition design waterline is located the intermediate position in the middle section of hourglass type stand, and is unusual, and middle section cylinder section length is shorter. The running condition design waterline is arranged in the middle section and can have smaller waterline surface compared with the lower section and the upper section which are expanded outwards, and then the wave flow force borne by the structure is smaller when the normal working state is ensured. Meanwhile, the frustum of the upper inverted cone can effectively prevent wave climbing, and the external expanding design is ensured not to have additional risks of wave rising and slamming.
Furthermore, the side wall of the cone table part is provided with a grid hole, and the aperture of the grid hole is gradually increased from inside to outside. The cone portion enables water flow to easily enter and difficultly exit through the grid holes with one-way contraction, a flow field is disturbed, the purpose of energy dissipation is achieved, the gentle wave pulsation force can also be exerted, and the vibration of the floating body structure is reduced.
Further, the column casing part is provided with a plurality of layers of wing plates, the wing plates are arranged in the frustum part, and the wing plates are arranged among the layers of wing plates at intervals. The post pterygoid lamina can be produced extra flow resistance because of the inflow of water around the interval setting, and then provides extra damping for restraining the large-scale motion of structure, can effectively improve body structure stability.
Further, the width of the wing plate is gradually increased from the center of the column tube part to both ends. The general width gradually increases, can make the pterygoid lamina laminate the inner wall of frustum body, further improves the stability of body structure.
Furthermore, the quantity of bipyramid grid plate formula stand is three and evenly distributed in the outside of connecting seat at least. Through the even bipyramid bar grid formula stand that sets up, can effectively improve overall stability, avoid floating body structure to topple.
Further, the column casing part is provided with an accommodating cavity. Through the setting that holds the chamber for can fill ballast material in column casing portion, like sea water, high density ore, concrete etc. conveniently adjust the draft state and the aquatic gesture of body structure. The size adjustment and the careful internal subdivision division can be carried out according to the actual design requirement.
Furthermore, the biconical grid plate type stand column is provided with a mooring mechanism, the mooring mechanism comprises an anchor machine and a mooring cable, the anchor machine is connected with the mooring cable, and the anchor machine is arranged on the column barrel portion. Through anchor machine and mooring cable, can moor the body structure, improve the overall stability of body structure, avoid being blown away by wind.
Furthermore, the upper frustum part is provided with a guy cable. The inhaul cable is used for connecting the fan tower cylinder arranged on the connecting seat, effectively disperses and transmits the horizontal load transmitted by the fan tower cylinder, greatly slows down the stress condition of the bottom node, and simplifies the structural dimension of the interface of the fan tower cylinder and the floating body structure. Through the position of adjusting the cable point, can adjust overall structure's natural frequency of vibrating, prevent to take place resonance destruction.
The utility model discloses owing to adopted above-mentioned technical scheme, following beneficial effect has:
1) The design of the double-cone grid plate type upright column increases the water line surface of the floating body structure under the storm working condition when the floating body structure is subjected to heave, roll and pitch, can provide a larger restoring moment for the system in motion, and can effectively improve the motion stability of the floating body structure in deep and far sea severe environments;
2) The utility model discloses frustum portion is equipped with one-way shrink grid hole, makes rivers easily advance difficult play, and the upset flow field reaches the energy dissipation purpose, and the gentle wave pulsation force of attacking that does reduces floating body structure's vibration.
3) The utility model discloses the inboard inflow that can make water around the post pterygoid lamina that sets up of frustum portion produces extra flow resistance, and then provides extra damping for suppressing the large-scale motion of structure, can effectively improve basic stability.
4) The frustum portion that sets up in opposite directions can effectively prevent that the wave from climbing, ensures that outer expanding design can not have the extra risk of surfing and slamming.
5) The fan tower section of thick bamboo is connected with the center of connecting seat and is located the structure center, and the tower section of thick bamboo need not additionally to set up changeover portion and stand flotation pontoon.
6) The utility model discloses pass through the cable with fan tower section of thick bamboo and bipyramid bars board-like stand and link to each other, can effectively disperse the horizontal load that the transmission of transmission upper portion tower section of thick bamboo got off, slow down bottom connected node's atress situation by a wide margin, simplify the structural dimension of fan tower section of thick bamboo and basic interface department. Through the position of adjusting the cable point, can adjust overall structure's natural frequency of vibrating, prevent to take place resonance destruction.
7) The utility model discloses the structure basic pattern is semi-submerged type, and the deep range of application is wide, can be applicable to shallow water and deep water sea area simultaneously.
Drawings
The present invention will be further explained with reference to the accompanying drawings:
fig. 1 is a schematic structural view of the double-cone grid plate type offshore wind power floating foundation structure of the present invention;
FIG. 2 is a schematic structural view of a double-cone grid plate type column of the present invention;
FIG. 3 is a schematic structural view of the pillar body of the present invention;
fig. 4 is a schematic structural view of the middle cone portion of the present invention.
In the figure, 1-connecting seat; 2-double cone grid plate type upright post; 3-a cylindrical section; 4-a frustum portion; 5-grid holes; 6-wing plate; 7-sealing plate; 8-an anchor machine; 9-mooring lines; 11-a pull rope; 12-wind turbine tower.
Detailed Description
As shown in fig. 1 to 4, do the utility model relates to a floating foundation structure of bipyramid grid tray formula offshore wind power, including connecting seat 1 and bipyramid grid tray formula stand 2, bipyramid grid tray formula stand 2 and connecting seat 1 fixed connection, bipyramid grid tray formula stand 2 includes section of thick bamboo portion 3 and frustum portion 4, and the both ends of section of thick bamboo portion 3 are located to 4 covers of frustum portion. Through bipyramid grid plate formula stand 2, can increase the waterline face under the stormy wave operating mode, for the system provides big enough restoring moment, promote the motion stability of floating structure under deep and far sea adverse circumstances effectively.
The two cone portions 4 are disposed opposite to each other. The top surface of frustum portion 4 sets up in opposite directions for the frustum of lower part is forward to be set up, and the frustum on upper portion becomes the reverse setting of back taper, and through the design of this kind of structure, the operating condition design waterline is located the intermediate position in the middle section of hourglass type stand, and is unusual, and middle section cylinder section length is shorter. The running condition design waterline is arranged at the middle section and can have smaller waterline surface compared with the outer expanded lower section and the upper section, and then the wave flow force borne by the structure is smaller in the normal working state. Simultaneously, the frustum of the upper inverted cone can effectively prevent waves from climbing, and the outward expanding design is ensured not to have additional risks of rising waves and slamming. The bottom surface of the cone portion 4 has a closed structure, and does not have a through hole or the like, and can function as a heave plate.
The side wall of the cone part 4 is provided with a grid hole 5, and the aperture of the grid hole 5 is gradually enlarged from inside to outside. The cone base part 4 makes rivers easily advance difficult play through being equipped with one-way shrink's grid hole 5, disturbs the flow field, reaches the energy dissipation purpose, and the gentle wave pulsation force of doing too reduces floating body structure's vibration.
The cylindrical portion 3 is provided with a plurality of layers of wing plates 6, the wing plates 6 are arranged in the cone portion 4, and the wing plates 6 are arranged at intervals between each layer. The post-wound wing plates 6 arranged at intervals can generate additional flow resistance due to inflow of water, and then provide additional damping for inhibiting large-scale movement of the structure, so that the structural stability of the floating body can be effectively improved.
The width of the wing plate 6 gradually increases from the center of the column part 3 to both ends. The general width gradually becomes larger, so that the wing plates 6 can be attached to the inner wall of the frustum body, and the stability of the floating body structure can be further improved.
The number of the double-cone grid plate type upright posts 2 is at least three and is uniformly distributed on the outer side of the connecting seat 1. Through the even bipyramid bar grid formula stand 2 that sets up, can effectively improve overall stability, avoid the body structure to topple.
The cylindrical portion 3 is provided with an accommodation chamber. Through the setting that holds the chamber for can fill ballast material in column casing portion 3, like sea water, high density ore, concrete etc. conveniently adjust the draft state and the aquatic gesture of body structure. The size adjustment and the careful internal subdivision division can be carried out according to the actual design requirement. The upper end and the lower end of the containing cavity are provided with sealing plates 7 for sealing
Bipyramid grid tray formula stand 2 is equipped with mooring mechanism, and mooring mechanism includes anchor machine 8 and mooring rope 9, and anchor machine 8 is connected with mooring rope 9, and anchor machine 8 is located section of thick bamboo portion 3. Through anchor machine 8 and mooring line 9, can moor the body structure, improve the overall stability of body structure, avoid being blown away by wind.
The upper end of the frustum portion 4 is provided with a cable 11. The inhaul cable 11 is used for connecting a fan tower cylinder 12 arranged on the connecting seat 1, effectively dispersing and conducting horizontal load conducted by the fan tower cylinder 12, greatly relieving the stress condition of a bottom node, and simplifying the structural dimension of the interface of the fan tower cylinder 12 and the floating body structure. Through the position of adjusting 11 points on the cable, can adjust overall structure's natural frequency of shaking, prevent to take place resonance and destroy.
The utility model discloses owing to adopted above-mentioned technical scheme, following beneficial effect has:
1) The double-cone grid plate type column 2 of the utility model is designed to increase the water line surface of the floating structure under the working conditions of wind wave when the floating structure is vertically swung, rolled and vertically swung, so as to provide a larger restoring moment for the system during movement and effectively improve the motion stability of the floating structure under severe environment in deep and far sea;
2) The utility model discloses frustum portion 4 is equipped with one-way shrink grid hole 5, makes rivers easily advance difficult play, and the upset flow field reaches the energy dissipation purpose, and the gentle wave pulsation force of attacking of doing reduces floating body structure's vibration.
3) The utility model discloses the flow in that 4 inboard settings of frustum portion can make water around post pterygoid lamina 6 produces extra flow resistance, and then provides extra damping for restraining the big yardstick motion of structure, can effectively improve basic stability.
4) The frustum portions 4 arranged in opposite directions can effectively prevent waves from climbing, and the external expansion type design is ensured not to have additional risks of wave and attack.
5) The fan tower barrel 13 is connected with the center of the connecting seat 1 and is located at the center of the structure, and the tower barrel does not need to be additionally provided with a transition section and a stand column buoy.
6) The utility model discloses link to each other fan tower section of thick bamboo 13 and bipyramid grid tray formula stand 2 through cable 11, can effectively disperse the horizontal load that the transmission of transmission upper portion tower section of thick bamboo got off, slow down bottom connected node's atress situation by a wide margin, simplify fan tower section of thick bamboo 13 and the structural dimension of basic interface department. Through the position of adjusting 11 points of cable, can adjust overall structure's natural frequency that shakes, prevent to take place resonance destruction.
7) The utility model discloses the structure basic pattern is semi-submerged type, and the deep range of application is wide, can be applicable to shallow water and deep water sea area simultaneously.
The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present invention to solve the same technical problems and achieve the same technical effects are all covered by the protection scope of the present invention.
Claims (9)
1. The utility model provides a floating foundation structure of bipyramid grid tray formula offshore wind power which characterized in that: the connecting device comprises a connecting seat and a double-cone grid plate type stand column, wherein the double-cone grid plate type stand column is fixedly connected with the connecting seat, the double-cone grid plate type stand column comprises a column tube part and a frustum part, and the frustum part is sleeved at two ends of the column tube part.
2. The double-cone grid plate type offshore wind power floating foundation structure of claim 1, wherein: the two cone portions are arranged opposite to each other.
3. The double-cone grid plate type offshore wind power floating foundation structure of claim 1, wherein: the side wall of the frustum part is provided with a grating hole, and the aperture of the grating hole is gradually increased from inside to outside.
4. The double-cone grid plate type offshore wind power floating foundation structure of claim 1, wherein: the column barrel part is provided with a plurality of layers of wing plates, the wing plates are arranged in the frustum part, and each layer of wing plates are arranged at intervals.
5. The double-cone grid plate type offshore wind power floating foundation structure of claim 4, wherein: the width of the wing plates of different layers is gradually increased from the center of the cylindrical part to two ends.
6. The double-cone grid plate type offshore wind power floating foundation structure of claim 1, wherein: the number of the double-cone grid plate type upright posts is at least three, and the double-cone grid plate type upright posts are uniformly distributed on the outer side of the connecting seat.
7. The double-cone grid plate type offshore wind power floating foundation structure of claim 1, wherein: the column barrel part is provided with an accommodating cavity.
8. The double-cone grid plate type offshore wind power floating foundation structure of claim 1, wherein: the double-cone grid plate type stand column is provided with a mooring mechanism, the mooring mechanism comprises an anchor machine and a mooring cable, the anchor machine is connected with the mooring cable, and the anchor machine is arranged on the column barrel portion.
9. The double-cone grid plate type offshore wind power floating foundation structure of claim 1, wherein: the upper end of the frustum part is provided with a guy cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220850635.0U CN217782119U (en) | 2022-04-12 | 2022-04-12 | Double-cone grid plate type offshore wind power floating foundation structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220850635.0U CN217782119U (en) | 2022-04-12 | 2022-04-12 | Double-cone grid plate type offshore wind power floating foundation structure |
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| CN217782119U true CN217782119U (en) | 2022-11-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114892703A (en) * | 2022-04-12 | 2022-08-12 | 中国电建集团华东勘测设计研究院有限公司 | Double-cone grid plate type offshore wind power floating foundation structure |
| CN116039861A (en) * | 2023-03-03 | 2023-05-02 | 天津大学 | Floating foundation supported by steel-concrete combined multiple upright posts |
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2022
- 2022-04-12 CN CN202220850635.0U patent/CN217782119U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114892703A (en) * | 2022-04-12 | 2022-08-12 | 中国电建集团华东勘测设计研究院有限公司 | Double-cone grid plate type offshore wind power floating foundation structure |
| CN116039861A (en) * | 2023-03-03 | 2023-05-02 | 天津大学 | Floating foundation supported by steel-concrete combined multiple upright posts |
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