CN114148462A - Semi-submersible floating platform and eccentric fan system based on single point mooring - Google Patents
Semi-submersible floating platform and eccentric fan system based on single point mooring Download PDFInfo
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- CN114148462A CN114148462A CN202110889243.5A CN202110889243A CN114148462A CN 114148462 A CN114148462 A CN 114148462A CN 202110889243 A CN202110889243 A CN 202110889243A CN 114148462 A CN114148462 A CN 114148462A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/446—Floating structures carrying electric power plants for converting wind energy into electric energy
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B2209/00—Energy supply or activating means
- B63B2209/20—Energy supply or activating means wind energy
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Abstract
Semi-submerged floating platform and eccentric fan system based on single-point mooring belongs to renewable energy utilization field, in order to reduce the environmental load that floating platform receives, the main points are that the cross bridge hangs down and swings the board, the longitudinal bridge hangs down and swings the inter-plate and connect through the flotation pontoon of connecting on each hang down and swing the board, and at the position shaping flotation pontoon cavity that the flotation pontoon is connected, turret mooring device installs in the flotation pontoon cavity, it is rotatable to make the flotation pontoon moor in the turret mooring device on seabed relatively, and the effect makes the platform move under the minimum azimuth of environmental load all the time, can guarantee platform stability and reduce load.
Description
Technical Field
The invention belongs to the field of renewable energy utilization, relates to a floating type fan system, and particularly relates to a novel semi-submersible floating platform based on single-point mooring and a mooring system.
Background
At present, the fossil energy is in rapid shortage, and the problems of environmental pollution, climate change and the like are increasingly serious. To solve the above problems, governments of various countries actively advance the development of renewable energy technologies. As one of the most promising renewable energy sources, the vigorous development of wind power resources has become an important approach for solving the problems of energy shortage, environmental pollution and the like in China. Compared with land wind energy, offshore wind energy resources are more abundant and stable, land resources are saved, and the method is the main direction of future Chinese wind power development.
In recent years, offshore wind power development is gradually moving from offshore to deep and offshore, and in the process, scholars and scientific research units at home and abroad put forward a plurality of concept design schemes of floating type fan foundations, including Spar type, semi-submersible type, TLP and barge type fan foundations, wherein the semi-submersible type floating type fan foundations are paid higher attention because of wider applicable water depth, convenient transportation and installation and higher expandability. At present, the upright posts and the buoys of the semi-submersible platform are mostly circular in section, such as Braceless, OC4-DeepCwind, OO-Star and the like. Correspondingly, the semi-submersible floating type wind turbine platform mostly adopts a multi-point distributed mooring mode in a catenary mode. But the wave force and the water flow force borne by the upright post with the circular or rectangular cross section are larger, in addition, the material consumption of the platform foundation is smaller in the eccentric design scheme compared with the central arrangement scheme, but the motion response and the stability of the platform under the action of environmental loads with different azimuth angles have larger difference, the stability of the platform is usually smaller compared with the longitudinal stability, and when the incoming wave direction is 90 degrees, the stability of the platform is poorer.
Disclosure of Invention
In order to reduce the environmental load borne by the platform, the invention provides the following technical scheme: a semi-submersible floating platform based on single-point mooring comprises a working bridge, upright columns, heave plates and a buoy, wherein the working bridge comprises transverse bridge plates and longitudinal bridge plates, the end parts of one bridge plate of the longitudinal bridge plate are horizontally connected with the middle parts of the transverse bridge plates, the end parts of the two bridge plates of the transverse bridge plate and the end part of the other bridge plate of the longitudinal bridge plate are downwards connected with the upright column, the upright column comprises a front cylindrical part and a rear pointed column part, the upright column is downwards connected with the heave plates, the two heave plates corresponding to the ends of the two bridge plates of the two transverse bridge plates are transverse bridge heave plates, the heave plate corresponding to the end of the bridge plate of the other longitudinal bridge plate is a longitudinal bridge heave plate, the transverse bridge heave plates and the longitudinal bridge heave plates are connected through buoys connected with the heave plates, and a buoy cavity is formed at the location where the buoy is connected, and the turret mooring device is mounted in said buoy cavity such that the buoy is rotatable relative to the turret mooring device moored to the sea floor.
Furthermore, one bridge plate end part of the longitudinal bridge plate is horizontally and vertically connected with the middle position of the transverse bridge plate, the bridge plate end parts of the two transverse bridge plates and the bridge plate end part of the other longitudinal bridge plate are positioned in three vertex positions of a triangle formed by the three bridge plate end parts in space, the buoy connected with the transverse bridge heave plate is parallel to the transverse bridge plate positioned above the transverse bridge plate, the buoy connected with the longitudinal bridge heave plate is parallel to the longitudinal bridge plate positioned above the longitudinal bridge plate, and the buoy cavity is formed in the middle position of the two transverse bridge heave plates.
Further, the triangle is a regular triangle.
Furthermore, the buoy that two cross bridges drove the board connection and the buoy level that the longitudinal bridge drove the board connection and connect perpendicularly in the intermediate position that two cross bridges drove the board, and connect through the plane formula between the different buoys and make the side contained angle of two buoys be non-right angle.
Furthermore, the appearance of the buoy connecting part formed by connecting the buoys is a regular hexagon body, and a vertically-penetrating buoy cavity is formed in the center of the regular hexagon body.
Furthermore, the turret mooring device comprises a plurality of rows of ball bearings and a rotating shaft positioned in an inner ring of the ball bearings, the rotating shaft is moored to the sea bottom through an anchor chain, and the periphery of an outer ring of the bearing is fixed with the buoy, so that the floating platform can freely rotate around the central axis of the inner turret mooring device.
Further, the shape of the pillar is formed by cutting the cylindrical surface with two rectangular planes for the cylinder.
Furthermore, partition plates are arranged inside the upright columns, the heave plates or the buoys, a certain number of cabins are divided inside the upright columns, the heave plates or the buoys through the partition plates, and the height of the cabins near the water line surface is lower than that of the cabins at positions other than the positions.
Furthermore, ballast tanks are arranged in the front cylindrical part of the upright post or the heave plate or the buoy, and rib plates are arranged in the rear pointed cylindrical part of the upright post.
A semi-submersible floating eccentric wind turbine system based on single point mooring comprises a wind turbine and any one of the platforms, wherein the installation position of a wind turbine tower is located in the middle of a transverse bridge plate and opposite to a turret mooring device below the transverse bridge plate.
Has the advantages that: the eccentric floating platform is formed in the middle of the transverse bridge plate for installing the fan, so that compared with a symmetrical floating platform with four stand columns, the stand columns can be reduced, the steel consumption is reduced, and the cost is reduced. Meanwhile, the load of the existing platform is reduced, and the hydrodynamic load can be effectively reduced through the upright column with the wing-shaped section, so that the load is further reduced. Compared with the existing symmetrical floating platform, the semi-submersible floating type wind turbine has the advantages that the asymmetric platform structure is adopted, and the turret mooring device is further matched with the yaw system, so that the semi-submersible floating type wind turbine system has a wind vane effect, the platform is enabled to operate at an azimuth angle with good platform stability all the time, the platform stability can be ensured, the load can be reduced, and the motion response of the platform can be reduced.
Drawings
Fig. 1 is a schematic structural diagram of a novel semi-submersible floating fan system combined with a turret mooring device provided by the invention.
Fig. 2 is a schematic view of a turret mooring arrangement.
Fig. 3 is a schematic structural diagram of a novel semi-submersible floating fan system upright post.
1. The marine platform comprises blades, 2, a cabin, 3, a hub, 4, a tower, 5, a waterline, 6, a working bridge, 7, a stand column, 8, a heave plate, 9, a buoy, 10, a turret mooring device, 11, an anchor chain, 12, a seabed, 13, a ball bearing, 14, a rotating shaft and 15, and a cable guide hole.
Detailed Description
The preferred embodiment of the present invention will be described in detail below with reference to fig. 1 to 3.
As shown in FIG. 1, the semi-submersible eccentric wind turbine system based on single point mooring comprises a wind turbine and a semi-submersible floating platform. The fan contains blade 1, cabin 2, wheel hub 3 and tower section of thick bamboo 4, cabin 2 passes through wheel hub 3 and is connected with blade 1, the fan lower part links to each other with tower section of thick bamboo 4, 4 bottoms of tower section of thick bamboo link to each other with semi-submerged floating platform through the flange, semi-submerged floating platform includes working bridge 6, stand 7, hang down and swing board 8 and flotation pontoon 9, wherein three root system 7 upper portions are passed through working bridge 6 and are connected, the circular board 8 that hangs down of 7 lower part fixed connection of stand, a motion acceleration for reducing semi-submerged floating platform and hanging down the direction, the fan is fixed in the junction of the horizontal bridge plate and the vertical bridge plate of two mutually perpendicular's working bridge 6. The inside baffle that all sets up of stand 7, hang down and swing board 8 and flotation pontoon 9 divides the cabin of a certain amount, and the cabin division height near waterline face 5 is less, because the cabin near the waterline face takes place the damage most easily, and the stability of platform also worsens after the cabin damage. Ballast such as water ballast, concrete ballast and the like is reasonably arranged in the cabin, and the arrangement of the ballast plays a very important role in the stability of the floating platform which is arranged eccentrically.
Compared with the existing symmetrical four-upright floating platform, the three-upright semi-submersible floating platform adopts the eccentric three-upright semi-submersible floating platform, reduces the number of the uprights, can reduce the load, and simultaneously reduces the steel consumption and the cost. The upright posts 7 are connected with the rectangular floating barrels 9 at the bottom through the working bridges 6, and cabins are arranged inside the three upright posts 7 and the rectangular floating barrels 9 at the bottom, so that the cabin breaking stability of the floating platform is ensured. Work bridge 6 and flotation pontoon 9 are arranged into "T" font, and the fan is located the junction of the horizontal bridge plate of work bridge 6 and vertical bridge plate, and cabin 2 passes through wheel hub 3 to be connected with blade 1, and the lower part links to each other with tower section of thick bamboo 4, and tower section of thick bamboo 4 bottom is passed through the flange and is linked to each other with semi-submerged floating platform, and 6 junctions of work bridge add the angle steel can satisfy the intensity demand that supports upper portion fan.
The section of an upright post 7 of the semi-submersible floating platform is an airfoil section, the airfoil section can reduce environmental loads such as sea waves and ocean currents borne by the platform, the airfoil section design of the section of the upright post 7 can only reduce the environmental load of a certain azimuth angle, a general multi-point distributed mooring mode is adopted, the section of the upright post 7 cannot be adjusted according to the azimuth angle of the environmental load, and when the azimuth angle of the environmental load changes, the platform can have large motion response, so that the problem is solved by adopting single-point mooring.
The transverse bridge heave plates 8 and the longitudinal bridge heave plates 8 are connected through buoys 9 connected to the heave plates 8, cavities are formed at the connecting positions of the buoys 9, namely buoy connecting parts, and the turret mooring device is arranged in the cavities of the buoys, so that the floating type fan platform can rotate relative to the turret mooring device moored to the seabed. The single point mooring is that the turret type mooring device 10 is positioned in a buoy cavity of a buoy connecting part and consists of the turret type mooring device 10 and a lower anchor chain 11, the turret type mooring device 10 comprises a ball bearing 13 and a middle rotating shaft 14, wherein the outer ring of the ball bearing 13 is connected with a buoy 9, the rotating shaft 14 realizes relative rotation with a semi-submersible floating platform through a plurality of rows of balls, the lower part of the rotating shaft 14 is fixed on a seabed 12 through three anchor chains 11, and the semi-submersible floating fan system has a weathervaning effect through the cooperation of the turret type mooring device 10 and a yawing system.
The turret mooring device is located the hookup location department of semi-submerged floating fan platform flotation pontoon 9 and is flotation pontoon 9 connecting portion, the formation of flotation pontoon 9 connecting portion is that each flotation pontoon 9 that hangs down the connection of board 8 gathers or fuses and forms, this kind fuses preferably integrated into one piece, flotation pontoon 9 connecting portion appearance is the hexagon, connect through the plane formula between different flotation pontoons 9 and make the side contained angle of two flotation pontoons 9 be the non-right angle, satisfy the needs of turret mooring device to flotation pontoon 9 junction intensity, can effectively avoid the stress concentration phenomenon that the right angle connection leads to. The turret mooring device comprises two parts, namely a plurality of rows of ball bearings and a rotating shaft 14 in the middle, wherein the rotating shaft 14 is moored to the sea bottom through an anchor chain 11, and an outer ring of the bearing is connected with the semi-submersible floating platform to drive the semi-submersible floating platform to freely rotate around the central axis of the turret mooring device 10.
In one arrangement, as shown in figure 2, the turret mooring 10 is located at the buoy 9 connection and comprises a ball bearing 13 and a shaft 14. The outer wall of the ball bearing 13 is fixedly connected with the inner cylindrical surface of a buoy cavity formed by a hexagonal buoy 9 connecting part, two ends of a rotating shaft 14 are large-diameter sections, the rotating shaft 14 is fixed at the center of the hexagonal buoy 9 connecting part, a certain gap is reserved between inner planes at two ends of the rotating shaft 14 and the upper surface and the lower surface of the buoy 9 to ensure the relative free rotation of the rotating shaft 14 and the ball bearing 13, three cable guide holes 15 are arranged at the lower part of the rotating shaft 14 and used for connecting the upper end of an anchor chain 11 with a semi-submersible floating platform, and the lower part of the rotating shaft is fixed on a seabed 12. The size of the hexagonal buoy 9 below the fan is determined according to the diameter and the height of the turret type mooring device 10, so that the turret type mooring device 10 can be conveniently installed and fixed, the strength requirement of a floating fan system is met, and in addition, the diameter and the height of the turret type mooring device 10 are determined according to the fan capacity and sea condition conditions. And the outer ring of the bearing 13 and the semi-submersible floating platform form an integral structure, so that the relative rotation of the rotating shaft 14 connected with the mooring system and the upright post 7 is realized, and finally, the semi-submersible floating fan system has a wind mark effect through the cooperation of the turret mooring device 10 and the yaw system.
As shown in fig. 3, the cross section of the platform upright post 7 is designed in a wing shape, and mainly comprises a cylindrical part and a pointed part surrounded by two rectangular planes at the rear part, the two rectangular planes are tangent to the cylindrical surface, no ballast tank is arranged in the pointed part at the rear part, the strength requirement of the whole fan foundation is ensured only by adding stiffening ribs, in addition, under the condition of the same upright post cross section, the form of the upright post cross section is changed by adjusting parameters such as the diameter of the circular surface, the tangent position of the rectangular plane and the cylindrical surface, and through frequency domain hydrodynamic analysis, the first-order wave force corresponding to the platform surging direction by different parameters is mainly concerned and compared, the upright post cross section form corresponding to the platform surging direction with the smallest amplitude value is selected within the wave main frequency range, and under the same wave condition, the platform surging response corresponding to the upright post cross section is the smallest, the mooring radius can be effectively reduced under shallow water or medium water depth conditions. Meanwhile, the arc surface inside the upright post replaces a part of the internal cabin partition plate, the consumption of steel is not excessively increased, and the upright post is simple in structure and is a cylindrical surface or a rectangular plane. The section of the wing-shaped upright post is combined with a turret mooring system, so that the environmental load and the motion response of the platform such as wind, wave, flow and the like are effectively reduced.
According to the invention, the design of the wing section is combined with the turret type mooring device 10, so that the novel semi-submersible floating type fan system has a wind vane effect while the environmental load borne by the platform is reduced, the novel semi-submersible floating type fan system can freely rotate around the middle axis of the turret type mooring device 10 under the action of environmental loads such as wind, wave and flow, and meanwhile, the upper fan is controlled in a yaw mode, so that the environmental load borne by the lower semi-submersible floating type platform in the whole service life is minimum while the wind energy capturing efficiency is improved, and meanwhile, the platform is enabled to always operate at an azimuth angle with better platform stability. In addition, the current floating wind power planning in China is mainly focused on medium water depth, the environmental load borne by the platform is reduced, and the motion response of the platform can be effectively controlled, so that the problem of strong nonlinearity of a shallow mooring system is solved, and reference is provided for popularization of the semi-submersible floating fan platform planned in China at the medium water depth.
The floating type wind turbine is suitable for shallow water and medium water depth sea areas in China, the floating type wind turbine foundation is in an eccentric design with three vertical columns 7, the sections of the vertical columns 7 are in a wing section design, the environmental load borne by a platform is reduced, meanwhile, a wind turbine system adopts a turret type mooring device 10, the azimuth angle can be automatically adjusted, and the wind turbine system is combined with the section design of the floating type wind turbine vertical columns 7 and the yaw control of an upper wind turbine, so that the platform always runs at the azimuth angle with the minimum environmental load.
In another embodiment, the semi-submersible floating platform based on single-point mooring comprises a working bridge 6, a stand column 7, a heave plate 8 and a buoy 9, wherein the working bridge 6 comprises a transverse bridge plate and a longitudinal bridge plate, and one bridge plate end part of the longitudinal bridge plate is horizontally connected with the middle part of the transverse bridge plate, namely the two bridge plates are connected on a horizontal plane. In a preferred embodiment, one web end of a longitudinal web is connected horizontally and vertically to the center of a transverse web, the web ends of two transverse webs and the web end of the other longitudinal web being located in space at the three apex points of a triangle formed by the three web ends, which triangle is not a solid triangle formed but indicates the positional relationship of the three web ends. The bridge ends of the two transverse bridge plates and the bridge end of the other longitudinal bridge plate are connected downwards with a column 7, the column 7 comprises a front cylindrical part and a rear pointed cylindrical part, and in one scheme, the shape of the column 7 is formed by using two rectangular planes for the column to be tangent with the cylindrical surface. The obtained upright 7 can of course be made in one piece by the above-described forming. The post 7 downwardly directed connection hangs down and swings board 8, corresponds two of the bridge plate tip of two horizontal bridge plates hang down board 8 is the horizontal bridge and hangs down board 8, corresponds the board 8 is hung down to the vertical bridge of hanging down of the bridge plate tip of another vertical bridge plate, and the horizontal bridge hangs down board 8, the vertical bridge and hangs down and swing between the board 8 through connecting the flotation pontoon 9 that each hangs down on board 8 and connect, and at the position shaping flotation pontoon cavity that flotation pontoon 9 connects, the capstan head mooring device is installed in the flotation pontoon cavity, it is rotatable to make the flotation pontoon 9 moor in the capstan head mooring device on the seabed relatively.
In one embodiment, the embodiment of the pontoon 9 to which the heave plate 8 is connected to form a pontoon cavity is described as follows: the pontoon 9 that the board 8 is connected is hung to the cross bridge and is on a parallel with the cross bridge board that is located its top, and the pontoon 9 that the board 8 is hung to the vertical bridge is on a parallel with the vertical bridge board that is located its top that the board 8 is hung to the vertical bridge, and the shaping of pontoon cavity is hung the intermediate position of board 8 at two cross bridges. The triangular shape preferably has a regular triangular shape. The flotation pontoon 9 that two cross bridge heave plates 8 are connected as preferred scheme and the flotation pontoon 9 that vertical bridge heave plate 8 is connected just connects perpendicularly in the intermediate position of two cross bridge heave plates 8, and connects through the plane formula between the flotation pontoon 9 of difference and makes the side contained angle of two flotation pontoons 9 be non-right angle. As the preferred scheme, the shapes of connecting parts of the buoys 9 formed by connecting the buoys 9 are regular hexagonal bodies, and a vertically-penetrating buoy cavity is formed in the centers of the regular hexagonal bodies. This solution enables a further load reduction by arranging the pontoon 9 in a shape and position corresponding to the working bridge 6 and avoiding a vertical connection of the pontoon 9.
In one embodiment, a semi-submersible eccentric wind turbine system based on single point mooring comprises a wind turbine and any of the platforms described herein, with the wind turbine tower 4 mounted in the middle of the transverse bridge deck opposite the turret mooring below the transverse bridge deck.
The invention combines the wing section design with the turret mooring device 10, reduces the environmental load borne by the platform, ensures that the novel semi-submersible floating type fan system has the wind vane effect, can freely rotate around the middle axis of the turret mooring device 10 under the action of the environmental loads such as wind, wave, flow and the like, simultaneously ensures that the platform always runs at an azimuth angle with better platform stability by controlling the yaw of the upper fan, improves the wind energy capturing efficiency, ensures that the environmental load borne by the lower semi-submersible floating type platform in the whole life span is minimum, is favorable for the overall strength and stability of the semi-submersible floating type platform, simplifies the design flow and workload, simultaneously has smaller wave and flow loads borne by the semi-submersible floating type platform, reduces the motion response of the semi-submersible floating type platform, and improves the strong nonlinearity problem of a shallow water mooring system, namely, the mooring tension of the anchor chain 11 moves along with the platform, the tension of the anchor chain 11 is smaller before a certain offset, but the mooring tension is sharply increased when the certain offset is exceeded, and reference is provided for popularization of the semi-submersible floating type fan platform planned in China at a medium water depth at present.
In addition, the section of a stand column 7 of the platform is different from a circular or rectangular section, the design of the airfoil section mainly comprises a pointed part formed by a circular part and two rectangular planes at the rear part, the two rectangular planes are tangent to a cylindrical surface, a ballast tank is not arranged in the pointed part at the rear part, the overall strength requirement of the fan foundation is ensured only by adding a stiffening rib plate, the tangent positions of the rectangular plane and the cylindrical surface are specifically determined according to the hydrodynamic performance of the platform, under the condition of the same sectional area of the stand column 7, the arc surface inside the stand column 7 replaces a part of internal cabin partition plates, the steel usage is not excessively increased, the structure is simple, the two rectangular planes are cylindrical surfaces or rectangular planes, and meanwhile, the two rectangular planes are combined with the turret type device 10, and the environmental loads such as wind, wave and flow borne by the platform are reduced.
The above description is only for the purpose of creating a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the inventive concept of the present invention within the technical scope of the present invention.
Claims (10)
1. A semi-submersible floating platform based on single-point mooring is characterized by comprising a working bridge (6), upright posts (7), heave plates (8) and buoys (9), wherein the working bridge (6) comprises transverse bridge plates and longitudinal bridge plates, the ends of one bridge plate of each longitudinal bridge plate are horizontally connected with the middle parts of the transverse bridge plates, the ends of the two bridge plates of each transverse bridge plate and the ends of the other longitudinal bridge plate are downwards connected with the upright posts (7), each upright post (7) comprises a front cylindrical part and a rear pointed cylindrical part, each upright post (7) is downwards connected with the heave plate (8), two heave plates (8) corresponding to the ends of the two transverse bridge plates are transverse bridge heave plates (8), a heave plate (8) corresponding to the end of the other longitudinal bridge plate is a longitudinal bridge heave plate (8), the transverse bridge heave plates (8) and the longitudinal bridge heave plates (8) are connected through the buoys (9) connected onto the heave plates (8), and a buoy cavity is formed at the location where the buoy (9) is connected, the turret mooring device being mounted in said buoy cavity such that the buoy (9) is rotatable relative to the turret mooring device moored to the seabed.
2. Semi-submersible floating platform based on single-point mooring according to claim 1, characterized in that one of the bridge plate ends of the longitudinal bridge plates is connected horizontally and vertically to the middle position of the transverse bridge plates, the bridge plate ends of two transverse bridge plates and the bridge plate end of the other longitudinal bridge plate are located in space at the three vertex positions of the triangle formed by the three bridge plate ends, the pontoons (9) connected by the transverse bridge heave plates (8) are parallel to the transverse bridge plate located above them, the pontoons (9) connected by the longitudinal bridge heave plates (8) are parallel to the longitudinal bridge plate located above them, and the pontoon cavities are formed at the middle position of the two transverse bridge heave plates (8).
3. The semi-submersible single point mooring-based vessel of claim 2, wherein the configured triangle is a regular triangle.
4. Semi-submersible floating platform based on single-point mooring according to claim 1 or 2, characterized in that the pontoons (9) connected to the two transverse heave plates (8) and the pontoons (9) connected to the longitudinal heave plates (8) are horizontally and vertically connected at the middle position of the two transverse heave plates (8), and the side included angles of the two pontoons (9) are non-right angles due to the plane connection between the different pontoons (9).
5. Semi-submersible floating platform based on single-point mooring according to claim 4, characterized in that the connecting part formed by the connection between the buoys (9) is in the shape of a regular hexagon, and a vertically penetrating buoy cavity is arranged in the center of the regular hexagon.
6. Semi-submersible vessel based on single point mooring according to claim 1, characterized in that the turret mooring means comprises rows of ball bearings and a swivel (14) in the inner race of the ball bearings, the swivel (14) being moored to the seabed by means of a chain (11), the outer circumference of the outer race of the bearings being fixed to the buoy (9) so that the vessel can rotate freely around the central axis of the turret mooring means (10).
7. Semi-submersible platform based on single point mooring according to claim 1, characterised in that the shape of the columns (7) is shaped by using two rectangular planes for the cylinder, tangent to the cylindrical surface.
8. Semi-submersible floating platform based on single-point mooring according to claim 1, characterized in that the columns (7) or heave plates (8) or pontoons (9) are internally provided with bulkheads by which a number of compartments are divided inside each, the height of the compartments near the water surface being lower than the height of compartments not in this position.
9. Semi-submersible floating platform based on single-point mooring according to claim 8, characterized in that ballast tanks are arranged inside the front cylindrical part of the columns (7) or heave plates (8) or buoys (9), and stiffening ribs are arranged inside the rear pointed cylindrical part of the columns (7).
10. Semi-submersible eccentric wind turbine system based on single point mooring, characterized in that it comprises a wind turbine and a platform according to any of claims 1-9, the wind turbine tower (4) being mounted in the middle of the transverse bridge deck opposite the turret mooring means below the transverse bridge deck.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116443198A (en) * | 2023-05-26 | 2023-07-18 | 上海勘测设计研究院有限公司 | Floating wind power hydrogen production platform system and working method thereof |
| GB2618784A (en) * | 2022-05-13 | 2023-11-22 | Equinor Energy As | Asymmetric floating wind turbine installation |
Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002073032A1 (en) * | 2001-03-08 | 2002-09-19 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Offshore floating wind power generation plant |
| WO2011137903A2 (en) * | 2010-05-05 | 2011-11-10 | Stephan Moellgaard Henriksen | Semi-submerged multiple wind-turbine system |
| WO2012069498A1 (en) * | 2010-11-22 | 2012-05-31 | Nass&Wind Industrie | Offshore wind-powered device with specific semi-submersible float |
| CN105240221A (en) * | 2014-07-08 | 2016-01-13 | 广东强光海洋工程有限公司 | Semi-submersible raft type overwater wind power generation equipment turning along with wind |
| CN105569928A (en) * | 2015-12-23 | 2016-05-11 | 天津大学 | Single point mooring type deep sea floating type draught fan |
| CN105980704A (en) * | 2013-10-08 | 2016-09-28 | 林霍夫海洋公司 | Floating wind power plant |
| KR101956032B1 (en) * | 2018-03-26 | 2019-03-08 | 알렌 주식회사 | Offshore wind power equipment of floating type |
| CN109982923A (en) * | 2016-11-25 | 2019-07-05 | 日本日联海洋株式会社 | Floating structure |
| CN110345020A (en) * | 2019-07-28 | 2019-10-18 | 米建军 | A kind of tower fairing and application apparatus |
| CN111140440A (en) * | 2020-01-15 | 2020-05-12 | 上海电气风电集团股份有限公司 | Semi-submerged floating type fan foundation and fan |
| WO2020209605A1 (en) * | 2019-04-12 | 2020-10-15 | 장대현 | Floating-type offshore wind power generation system |
| CN211874639U (en) * | 2020-07-31 | 2020-11-06 | 明阳智慧能源集团股份公司 | Double-wind-wheel floating type offshore wind power generation device capable of passively yawing |
| GB2592934A (en) * | 2020-03-10 | 2021-09-15 | Scotstream Generation Ltd | Offshore wind turbine system |
| CN113581395A (en) * | 2020-04-30 | 2021-11-02 | Bassoe科技公司 | Semi-submersible floating fan with T-shaped floating body |
| CN215553999U (en) * | 2021-08-04 | 2022-01-18 | 中国华能集团清洁能源技术研究院有限公司 | Semi-submersible floating type fan system capable of reducing load |
-
2021
- 2021-08-04 CN CN202110889243.5A patent/CN114148462A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002073032A1 (en) * | 2001-03-08 | 2002-09-19 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Offshore floating wind power generation plant |
| WO2011137903A2 (en) * | 2010-05-05 | 2011-11-10 | Stephan Moellgaard Henriksen | Semi-submerged multiple wind-turbine system |
| WO2012069498A1 (en) * | 2010-11-22 | 2012-05-31 | Nass&Wind Industrie | Offshore wind-powered device with specific semi-submersible float |
| CN105980704A (en) * | 2013-10-08 | 2016-09-28 | 林霍夫海洋公司 | Floating wind power plant |
| CN105240221A (en) * | 2014-07-08 | 2016-01-13 | 广东强光海洋工程有限公司 | Semi-submersible raft type overwater wind power generation equipment turning along with wind |
| CN105569928A (en) * | 2015-12-23 | 2016-05-11 | 天津大学 | Single point mooring type deep sea floating type draught fan |
| CN109982923A (en) * | 2016-11-25 | 2019-07-05 | 日本日联海洋株式会社 | Floating structure |
| KR101956032B1 (en) * | 2018-03-26 | 2019-03-08 | 알렌 주식회사 | Offshore wind power equipment of floating type |
| WO2020209605A1 (en) * | 2019-04-12 | 2020-10-15 | 장대현 | Floating-type offshore wind power generation system |
| CN110345020A (en) * | 2019-07-28 | 2019-10-18 | 米建军 | A kind of tower fairing and application apparatus |
| CN111140440A (en) * | 2020-01-15 | 2020-05-12 | 上海电气风电集团股份有限公司 | Semi-submerged floating type fan foundation and fan |
| GB2592934A (en) * | 2020-03-10 | 2021-09-15 | Scotstream Generation Ltd | Offshore wind turbine system |
| CN113581395A (en) * | 2020-04-30 | 2021-11-02 | Bassoe科技公司 | Semi-submersible floating fan with T-shaped floating body |
| CN211874639U (en) * | 2020-07-31 | 2020-11-06 | 明阳智慧能源集团股份公司 | Double-wind-wheel floating type offshore wind power generation device capable of passively yawing |
| CN215553999U (en) * | 2021-08-04 | 2022-01-18 | 中国华能集团清洁能源技术研究院有限公司 | Semi-submersible floating type fan system capable of reducing load |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2618784A (en) * | 2022-05-13 | 2023-11-22 | Equinor Energy As | Asymmetric floating wind turbine installation |
| CN116443198A (en) * | 2023-05-26 | 2023-07-18 | 上海勘测设计研究院有限公司 | Floating wind power hydrogen production platform system and working method thereof |
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