CN209795768U - self-stabilizing multi-column type offshore floating wind power Spar platform - Google Patents
self-stabilizing multi-column type offshore floating wind power Spar platform Download PDFInfo
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- CN209795768U CN209795768U CN201920549605.4U CN201920549605U CN209795768U CN 209795768 U CN209795768 U CN 209795768U CN 201920549605 U CN201920549605 U CN 201920549605U CN 209795768 U CN209795768 U CN 209795768U
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Abstract
The utility model discloses a from marine floating wind power Spar platform of stable type multicolumn formula, its technical scheme main points are: the utility model provides a from marine floating wind-powered electricity generation Spar platform of stable type multicolumn, include the central column, set up in the wind energy conversion system of central column up end, the terminal surface is provided with the center pillar under the central column, the center pillar diameter is greater than the central column, the center pillar periphery is provided with a plurality of side stand, the side stand laminate in the center pillar, the center pillar lower extreme is provided with the damping plate, and the damping plate is the level setting, the center pillar is connected with the anchoring system, all be provided with a plurality of cabin in center pillar and the side stand, the below cabin of same center pillar or side stand is fixed ballast tank, and the cabin that same center pillar or side stand is located fixed ballast tank top is the ballast regulation cabin. The utility model discloses can effectively reduce the requirement to the depth of water, increase the utility model discloses application scope.
Description
Technical Field
The utility model relates to an offshore wind turbine floats formula basis, especially involves a self-stabilizing type multicolumn formula offshore floating wind power Spar platform.
Background
Compared with the wind on the land, the sea wind has the advantages of high wind speed, less calm wind period, small change of wind speed along with the height, no need of noise limitation and the like, can greatly increase the generated energy of the wind machine and prolong the service life, has the advantage of unique offshore space cost compared with the land, and is suitable for large-scale development and utilization of high-quality wind energy. With the increase of water depth, the cost of the fixed offshore wind turbine foundation is increased sharply, and in order to improve the economic applicability, the floating foundation is adopted as a necessary choice for the development of the wind turbine in deeper sea areas.
The floating foundation of the offshore wind turbine commonly used at present comprises a tension leg type platform, a semi-submersible type platform and a Spar type platform.
The tension leg type platform keeps balance through excess buoyancy provided by the tension legs, the horizontal displacement of the platform is limited, the floating foundation is few in material consumption, the operating water depth is large, but the anchoring system is high in manufacturing cost, and the cost rises rapidly along with the increase of the water depth; the semi-submersible platform has large waterline area, good stability and easy construction and installation, but has larger wave load in sea areas with larger storms, high requirement on an anchoring system, shallow draft and obvious heaving movement, and is not beneficial to the normal operation of a wind turbine system; the floating center of the Spar platform is higher than the gravity center, unconditional stability is achieved, the moving performance is good, the control and positioning of the anchoring system are easy compared with those of other platforms, but the hard cabin is large in size and difficult to construct, transport and install, and the Spar platform has high requirements on water depth.
The Spar platform is a floating platform suitable for areas with large water depths. Because the floating center is higher than the gravity center, the unconditional stability can be ensured, the influence of waves on the platform can be further weakened after the anti-heaving structure is added, the mooring structure has better motion characteristic compared with other floating body structures, and the mooring system is easier to build, manipulate and position. However, the platform has high requirements on water depth, and the draught is generally more than 100 m. The platform is difficult to be applied on a large scale in consideration of the geographical characteristics of the yellow Bohai sea and the south sea in China.
The existing mainstream floating foundations have own defects and limitations, most of the existing floating platform concepts are aimed at the characteristics of European coastal sea areas, and obviously, the existing offshore floating wind turbine foundations cannot adapt to the actual sea conditions of China in consideration of the fact that the China offshore wind resources are mainly distributed in the east sea and south sea areas with shallow water depths (40-120 m), so that the popularization and the application are difficult, and in order to develop the abundant deep and distant sea wind turbine resources of China, a novel offshore floating wind turbine foundation which is suitable for the China sea areas, high in economy and excellent in comprehensive performance needs to be designed urgently.
Therefore, there is a need for an improved structure that overcomes the above-mentioned deficiencies.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a from marine floating wind-powered electricity generation Spar platform of stable type multicolumn formula effectively reduces the requirement to the depth of water, has increased the utility model discloses application scope.
The above technical purpose of the utility model is realized with following technical scheme: the utility model provides a from marine floating wind-powered electricity generation Spar platform of stable type multicolumn, include the central column, set up in the wind energy conversion system of central column up end, the terminal surface is provided with the center pillar under the central column, the center pillar diameter is greater than the central column, the center pillar periphery is provided with a plurality of side stand, the side stand laminate in the center pillar, the center pillar lower extreme is provided with the damping plate, and the damping plate is the level setting, the center pillar is connected with the anchoring system, all be provided with a plurality of cabin in center pillar and the side stand, the below cabin of same center pillar or side stand is fixed ballast tank, and the cabin that same center pillar or side stand is located fixed ballast tank top is the ballast regulation cabin.
The utility model discloses a further set up to: the fixed ballast tank is internally ballasted by using a metal material, the center of gravity of the Spar platform is lower than the floating center of the Spar platform, and water for adjusting the balance of the Spar platform flows in or out of the ballast adjusting tank.
The utility model discloses a further set up to: and a support rod is arranged between the damping plate and the lower end face of the central upright post, and a plurality of holes are formed in the surface of the damping plate.
The utility model discloses a further set up to: the damping plates are arranged into a plurality of damping plates which are arranged along the vertical direction.
The utility model discloses a further set up to: the side columns are arranged to be six, and the bottoms of the side columns are flush with the bottom of the central column.
The utility model discloses a further set up to: each side column is provided with a ballast adjusting tank, and the space of the ballast adjusting tank is smaller than that of the fixed ballast tank.
The utility model discloses a further set up to: the central column is provided with a water pump used for controlling water in the ballast adjusting tank to flow out or flow in, the ballast adjusting tank is provided with a swinging motion sensor, the swinging motion sensor is in electric signal connection with a control device, and the control device is in electric signal connection with the water pump.
The utility model discloses a further set up to: the anchoring systems are arranged into three groups, each group consists of two mooring cables, one end of each mooring cable is connected to the central upright post, and the mooring point is positioned on the plane where the center of gravity of the Spar platform is located.
To sum up, the utility model discloses following beneficial effect has:
1) The combined form of the central upright post and the side upright posts is adopted to replace a single long column with a large cross section, so that the cost and difficulty of construction, transportation and installation are reduced, and the influence of vortex-induced motion on the platform is reduced; in addition, the central column with a smaller section is adopted at the water plane, so that the wave load borne by the platform is reduced, the requirement on the water depth can be effectively reduced through the damping plate, and the application range of the utility model is enlarged;
2) The inflow or outflow of ballast water is controlled according to the actual gravity and buoyancy requirements of the Spar platform and the requirement of balance state adjustment, the cabin is relatively small, the influence of the sloshing of liquid in the cabin on the structure can be reduced to the greatest extent, the central upright column and the side upright columns are designed into a multi-cabin structure, and the cabin at the bottommost part is permanently fixed and ballasted, so that the gravity center of the platform is lower than the floating center, and the platform has unconditional stability;
3) set up in the cabin of other parts of side column and rock motion sensor, as the ballast regulation cabin, according to the amplitude adjustment cabin indoor ballast water's that the platform rocks the motion inflow or outflow, make the platform possess better stability in the wave, the platform below sets up the damping plate that has the hole, has increased the damping and the additional mass of platform in the direction of dangling, effectively reduces the heaving motion of platform in the wave.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of a ballast regulation chamber of the fixed ballast tank machine according to the present invention;
Fig. 3 is a schematic view of the middle damping plate of the present invention.
The corresponding part names indicated by the numbers in the figures: 1. a wind turbine; 2. a central column; 3. a central upright post; 4. a side column; 5. a damping plate; 6. an anchoring system; 7. a stay bar; 8. fixing a ballast tank; 9. a ballast conditioning tank; 10. and (4) holes.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further described with reference to the drawings and the specific embodiments.
As shown in fig. 1 to 3, the utility model provides a from marine floating wind-powered electricity generation Spar platform of stable type multicolumn, including central column 2, central column 2 is vertical setting, and wind energy conversion system 1 is installed to 2 up ends of central column, and terminal surface fixed mounting has center pillar 3 under 2 of central column, 3 diameters of center pillar are greater than central column 2, 3 peripheries of center pillar are provided with six side pillars 4, and six side pillars 4 are around center pillar 3 sets up and the laminating is fixed in center pillar 3 to terminal surface flushes under the side pillar 4 and the center pillar, and center pillar 3 and side pillar 4 all are cylindric setting. 3 lower extremes of center pillar are through installation vaulting pole 7 fixedly connected with damping plate 5, and damping plate 5 is the level setting to damping plate 5 can set up to a plurality ofly, and a plurality of damping plates 5 are vertical and interval arrangement, the utility model discloses choose a damping plate 5 for use. A plurality of holes 10 are arranged on the damping plate 5, and the number of the holes 10 can be 24.
The utility model adopts the combination of the central upright post 3 and the side upright posts 4 to replace a single long column body with a large cross section, thereby reducing the cost and difficulty of construction, transportation and installation and reducing the influence of vortex-induced motion on the platform; in addition, the central column 2 with a smaller section is adopted at the water plane, so that the wave load borne by the platform is reduced.
The central upright post 3 is connected with an anchoring system 6, the anchoring system 6 is arranged into three groups, each group consists of two mooring cables, one end of each mooring cable is connected to the central upright post 3, a mooring point is positioned on the plane where the gravity center of the platform is positioned, and the other end of each mooring cable is connected with an anchoring foundation on the seabed because the movement of the gravity center is relatively small.
All be provided with five cabins in central pillar 3 and the side column 4 to the chamber of the below at same central pillar 3 or side column 4 is fixed ballast tank 8, and the cabin that same central pillar 3 or side column 4 are located fixed ballast tank 8 top is ballast regulation tank 9, and ballast regulation tank 9 space is less than fixed ballast tank 8, uses metal material to do the ballast in the fixed ballast tank 8, and the barycenter of Spar platform is less than the floating core of Spar platform, is used for adjusting the balanced water inflow or the outflow of Spar platform in the ballast regulation tank 9. The inflow or outflow of ballast water can be controlled according to the actual gravity and buoyancy requirements of the Spar platform and the requirement of balance state adjustment, the cabins are relatively small, the influence of the sloshing of liquid in the cabins on the structure can be reduced to the greatest extent, the central upright column 3 and the side upright columns 4 are designed into a multi-cabin structure, the cabins at the bottommost part are permanently fixed and ballasted, the gravity center of the platform is lower than the floating center, and the platform has unconditional stability.
The central upright post 3 is provided with a water pump for controlling the outflow or inflow of water in the ballast adjusting tank 9, the ballast adjusting tank 9 is provided with a shaking motion sensor, the electric signal of the shaking motion sensor is connected with a control device, the control device is connected with the electric signal of the water pump, and the control device mainly comprises a single chip microcomputer and a corresponding circuit thereof, and the details are omitted for the prior art. The swaying motion sensors are arranged in the cabins of other parts of the side columns 4 and used as ballast adjusting cabins 9, inflow or outflow of ballast water in the cabins is adjusted according to the swaying motion amplitude of the platform, so that the platform has better stability in waves, the damping plates 5 with the holes 10 are arranged below the platform, damping and additional mass of the platform in the swaying direction are increased, and the heaving motion of the platform in the waves is effectively reduced.
the foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a self-stabilizing type multicolumn formula offshore floating wind power Spar platform, includes central column (2), set up in wind energy conversion system (1) of central column (2) up end, its characterized in that: the terminal surface is provided with center pillar (3) under center pillar (2), center pillar (3) diameter is greater than center pillar (2), center pillar (3) periphery is provided with a plurality of side columns (4), side column (4) laminate in center pillar (3), center pillar (3) lower extreme is provided with damping plate (5), and damping plate (5) are the level setting, center pillar (3) are connected with anchoring system (6), all be provided with a plurality of cabin in center pillar (3) and side pillar (4), the below cabin of same center pillar (3) or side pillar (4) is fixed ballast tank (8), and the cabin that same center pillar (3) or side pillar (4) are located fixed ballast tank (8) top is ballast regulation cabin (9).
2. The self-stabilizing multi-column offshore floating wind power Spar platform of claim 1, wherein: the fixed ballast tank (8) is ballasted by using a metal material, the center of gravity of the Spar platform is lower than the floating center of the Spar platform, and water for adjusting the balance of the Spar platform flows in or out of the ballast adjusting tank (9).
3. The self-stabilizing multi-column offshore floating wind power Spar platform of claim 1, wherein: and a support rod (7) is arranged between the damping plate (5) and the lower end face of the central upright post (3), and a plurality of holes (10) are formed in the surface of the damping plate (5).
4. The self-stabilizing multi-column offshore floating wind power Spar platform according to claim 3, wherein: the damping plates (5) are arranged into a plurality of damping plates (5) which are arranged in the vertical direction.
5. The self-stabilizing multi-column offshore floating wind power Spar platform of claim 1, wherein: the number of the side columns (4) is six, and the bottoms of the side columns (4) are flush with the bottom of the central column (3).
6. the self-stabilizing multi-column offshore floating wind power Spar platform according to claim 5, wherein: each side column (4) is provided with 4 ballast adjusting chambers (9), and the space of each ballast adjusting chamber (9) is smaller than that of the fixed ballast tank (8).
7. The self-stabilizing multi-column offshore floating wind power Spar platform as claimed in claim 2, wherein: the ballast adjusting tank is characterized in that the central upright column (3) is provided with a water pump used for controlling water in the ballast adjusting tank (9) to flow out or flow in, the ballast adjusting tank (9) is provided with a shaking motion sensor, the shaking motion sensor is in electric signal connection with a control device, and the control device is in electric signal connection with the water pump.
8. The self-stabilizing multi-column offshore floating wind power Spar platform as claimed in claim 2, wherein: the anchoring systems (6) are arranged into three groups, each group consists of two mooring cables, one end of each mooring cable is connected to the central upright post (3), and the mooring point is positioned on the plane where the center of gravity of the Spar platform is positioned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920549605.4U CN209795768U (en) | 2019-04-22 | 2019-04-22 | self-stabilizing multi-column type offshore floating wind power Spar platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920549605.4U CN209795768U (en) | 2019-04-22 | 2019-04-22 | self-stabilizing multi-column type offshore floating wind power Spar platform |
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| CN209795768U true CN209795768U (en) | 2019-12-17 |
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| CN201920549605.4U Active CN209795768U (en) | 2019-04-22 | 2019-04-22 | self-stabilizing multi-column type offshore floating wind power Spar platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109927857A (en) * | 2019-04-22 | 2019-06-25 | 上海交通大学 | A kind of self-stabilising polystyle offshore floating type wind-powered electricity generation Spar platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109927857A (en) * | 2019-04-22 | 2019-06-25 | 上海交通大学 | A kind of self-stabilising polystyle offshore floating type wind-powered electricity generation Spar platform |
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