CN219197533U

CN219197533U - Deep sea floating wind power system

Info

Publication number: CN219197533U
Application number: CN202320159902.4U
Authority: CN
Inventors: 王华峰; 张�荣; 尹淑彦; 陶丽
Original assignee: Shanghai Zhonghydrogen New Energy Technology Co ltd
Current assignee: Shanghai Zhonghydrogen New Energy Technology Co ltd
Priority date: 2023-02-09
Filing date: 2023-02-09
Publication date: 2023-06-16
Anticipated expiration: 2033-02-09

Abstract

The utility model discloses a deep sea floating wind power system, which relates to the technical field of offshore wind power and comprises a tower barrel, a wind turbine generator set, an anchoring system and a central buoyancy cabin, wherein the lower end of the tower barrel is arranged at the central position of the upper surface of the central buoyancy cabin; the auxiliary buoyancy cabins are at least three, are connected with the central buoyancy cabin through trusses, and are uniformly distributed on the same circumference taking the central buoyancy cabin as the center; the bottoms of the center buoyancy cabin and the truss are detachably connected with the small floating barrels. The buoyancy of the central buoyancy cabin and the truss is improved by the small buoyancy barrels, the floating cores are lifted, and the positions and the number of the small buoyancy barrels can be reasonably calculated according to the buoyancy of the required buoyancy. The small buoyancy barrel is arranged at the bottom of the truss, so that the truss has buoyancy, when the truss is purged by strong wind, the buoyancy counteracts part of gravity of the truss, the stressed deformation of the truss can be avoided, and the stability of the whole wind power foundation is ensured.

Description

Deep sea floating wind power system

Technical Field

The utility model relates to the technical field of offshore wind power foundations, in particular to a deep-sea floating wind power system.

Background

The coastline of China is wide, the offshore wind power resource reserve is rich, and the offshore wind power source is mainly distributed in deep open sea areas and has wide development prospect. According to basic form, offshore wind power is mainly divided into: gravity type foundations, single pile type foundations, multi-pile type foundations, tripod type foundations, floating type foundations and the like, and with continuous development of offshore resources, offshore wind power can gradually develop to deep sea due to regional and environmental restrictions of offshore water areas.

And the floating wind power system can be installed in deep sea, and the required cost is low, so that the development trend of the future offshore wind power trend to deep sea is realized.

In the aspect of offshore floating wind power, the patent of the utility model with the authority of the publication number CN112648149B discloses a floating offshore wind turbine system, which comprises a wind turbine generator, a tower, a floating platform and an anchoring system, wherein the floating platform comprises a buoyancy tank assembly and a ballast tank assembly, the ballast tank assembly is arranged on the lower side of the buoyancy tank assembly, and the buoyancy tank assembly comprises a central buoyancy tank, at least three angular point buoyancy tanks which are circumferentially distributed at intervals, and a connecting buoyancy tank arranged between the central buoyancy tank and the angular point buoyancy tanks.

The patent of the utility model with the publication number of CN112648149B discloses a floating type offshore wind turbine foundation and an offshore wind turbine, wherein the floating type offshore wind turbine foundation comprises a column type float assembly and a tension leg assembly, the column type float assembly comprises a supporting end and a connecting end, and the tension leg assembly comprises tension legs and tension ribs.

The patent of the utility model with the publication number of CN113266527B discloses a floating offshore wind power, which comprises a fan unit, a tower drum, a supporting structure and a mooring structure, wherein the supporting structure is in a tetragonal framework structure and comprises a bottom pontoon, a central column and four side columns; the four side posts are arranged at intervals along the circumference of the bottom pontoon, one side surface of the supporting structure is in an open arrangement, and the opening is positioned at the position of the supporting structure facing downwind direction.

In the floating type offshore wind power platform in the prior art, a truss structure is adopted to connect a central buoyancy chamber and a peripheral buoyancy chamber, when strong wind is received, the truss structure is easy to deform, and when the buoyancy generated by the central buoyancy chamber and the peripheral buoyancy chamber is insufficient, buoyancy equipment is not convenient to add, and the buoyancy of the central buoyancy chamber and the peripheral buoyancy chamber cannot be increased.

Disclosure of Invention

The utility model aims to provide a deep sea floating wind power system, which can randomly adjust the buoyancy of a central buoyancy cabin, so that a truss has buoyancy, is not easy to deform due to stress, is designed in an assembling way, and is convenient to detach a small floating barrel.

In order to achieve the above purpose, the present utility model provides the following technical solutions: including tower section of thick bamboo, wind turbine generator system and anchoring system, wind turbine generator system installs the upper end at the tower section of thick bamboo, wherein, still includes:

the lower end of the tower barrel is arranged at the central position of the upper surface of the central buoyancy cabin, and a counterweight cabin is arranged at the central position of the lower surface of the central buoyancy cabin;

the auxiliary buoyancy cabins are at least three, at least three auxiliary buoyancy cabins are connected with the central buoyancy cabin through trusses, and at least three auxiliary buoyancy cabins are uniformly distributed on the same circumference taking the central buoyancy cabin as the center;

the bottoms of the central buoyancy cabin and the truss are detachably connected with the small buoyancy barrels.

Through adopting above-mentioned technical scheme, a plurality of little floating barrels are convenient for install or dismantle on central buoyancy cabin or truss for improve the buoyancy of central buoyancy cabin and truss, raise the centre of buoyancy, can be according to the buoyancy size of required buoyancy, the position and the quantity of reasonable little floating barrel. The small buoyancy barrel is arranged at the bottom of the truss, so that the truss has buoyancy, when the truss is purged by strong wind, the buoyancy counteracts part of gravity of the truss, the stressed deformation of the truss can be avoided, and the stability of the whole wind power foundation is ensured.

Preferably, the upper surface of the central buoyancy cabin is provided with a lower flange, the lower end of the tower barrel is provided with an upper flange, and the upper flange and the lower flange are connected through bolts.

By adopting the technical scheme, the equipment can be hauled to a deep sea area, the tower barrel and the wind turbine are installed on site, and the flange can firmly install the tower barrel on the central buoyancy cabin.

Preferably, the anchoring system comprises an anchor chain and a sinking bottom, wherein the sinking bottom is fixed on the sea bottom, one end of the anchor chain is connected with the sinking bottom, anchor chain mounting holes are formed in the bottom of the auxiliary buoyancy cabin, and the other end of the anchor chain is connected with the anchor chain mounting holes.

By adopting the technical scheme, the bottom is buried in the seabed, each auxiliary buoyancy cabin is connected with an anchoring system, the auxiliary buoyancy cabin is firmly connected with the seabed by the anchor chain, the stability of a wind power foundation is ensured, and the cost of the anchoring system is low.

Preferably, the central buoyancy cabin and the truss are connected with a plurality of small floating barrels through a floating barrel connecting device, the floating barrel connecting device comprises a cylinder and a steel rod, the lower end of the cylinder is opened, the inner wall of the cylinder is provided with an inner thread, the outer wall of the steel rod is provided with an outer thread, a plurality of the upper ends of the cylinder are respectively fixed at the bottoms of the central buoyancy cabin or the truss, a plurality of the steel rods are respectively fixed on the upper surfaces of a plurality of small floating barrels, and the steel rod is in threaded connection with the cylinder.

Through adopting above-mentioned technical scheme, the float bowl connecting device is convenient for float bowl installation and dismantlement on central buoyancy cabin and truss, simple structure, convenient to use.

Preferably, the central buoyancy cabin comprises a plurality of buoyancy tanks, the buoyancy tanks are hollow box structures, two adjacent buoyancy tanks are connected through a connecting piece, and the upper surfaces of the buoyancy tanks form a platform.

Through adopting above-mentioned technical scheme, central buoyancy cabin is formed by a plurality of buoyancy tanks linking gradually, and the mill of being convenient for prefabricates, can haulage to behind the deep sea, again assembles central buoyancy cabin, and the haulage of being convenient for, according to the size of required buoyancy, the quantity of rational control buoyancy tank.

Preferably, the connecting piece comprises bolts, steel plates and fastening nuts, each of the edges of the tops of the floating boxes is embedded with a bolt, two adjacent bolts of the floating boxes are sleeved with a steel plate, and the bolts are connected with the fastening nuts in a threaded manner.

Through adopting above-mentioned technical scheme, the connecting piece is convenient for the quick connect between the buoyancy tank, improves the efficiency of construction, reduces the engineering time.

Compared with the related art, the deep sea floating wind power system provided by the utility model has the following beneficial effects:

1. the utility model adopts the central buoyancy cabin, the truss and the auxiliary buoyancy cabin as wind power foundations, has stable structure, and a plurality of small floating barrels are detachably arranged at the bottoms of the central buoyancy cabin and the truss, so that the buoyancy of the central buoyancy cabin and the truss is improved, the floating center is lifted, and the positions and the number of the small floating barrels can be reasonably calculated according to the buoyancy of the required buoyancy. The small buoyancy barrel is arranged at the bottom of the truss, so that the truss has buoyancy, when the truss is purged by strong wind, the buoyancy counteracts part of gravity of the truss, the stressed deformation of the truss can be avoided, and the stability of the whole wind power foundation is ensured.

2. The central buoyancy cabin is formed by sequentially connecting a plurality of buoyancy tanks, is convenient to prefabricate and assemble and maintain, and can adjust the volume and buoyancy of the central buoyancy cabin according to the needs.

Drawings

FIG. 1 is a schematic diagram of a deep sea floating wind power system;

FIG. 2 is an enlarged view of FIG. 1 at A;

fig. 3 is a schematic structural view of the connection of two buoyancy tanks.

Reference numerals: 1. a tower; 11. reinforcing ribs; 2. a wind turbine generator; 21. a fan nacelle; 22. a blade; 3. an anchoring system; 31. an anchor chain; 32. a sinking bottom; 4. a central buoyancy chamber; 41. a buoyancy tank; 5. A counterweight bin; 6. a secondary buoyancy chamber; 7. truss; 8. a small float bowl; 9. a float bowl connecting device; 10. A connecting piece; 101. a bolt; 102. a steel plate; 103. and (5) fastening the nut.

Description of the embodiments

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the present utility model will be further described in detail with reference to the accompanying drawings and examples.

It should be noted that, in the description of the present utility model, terms such as "upper," "lower," "left," "right," and the like, refer to directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model

Furthermore, it should be noted that, in the description of the present utility model, the terms "mounted," "disposed," and "connected" are to be construed broadly, unless explicitly stated or limited otherwise. For example, the connection can be fixed connection, detachable connection or integral connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood by those skilled in the art according to the specific circumstances.

Referring to fig. 1 and 2, a deep sea floating wind power system provided by an embodiment of the present utility model includes: the wind turbine generator system comprises a tower barrel 1, a wind turbine generator system 2, an anchor system 3 and a wind turbine foundation, wherein the tower barrel 1 is of a hollow structure, the wind turbine generator system 2 is installed at the upper end of the tower barrel 1, the wind turbine generator system 2 comprises a fan cabin 21 and blades 22, the fan cabin 21 is connected with the upper end of the tower barrel 1, and the fan cabin 21 is mechanically and rotatably connected with the blades 22.

The wind power foundation comprises a central buoyancy cabin 4, trusses 7 and auxiliary buoyancy cabins 6, wherein the auxiliary buoyancy cabins 6 are at least three, so that the trusses 7 are also at least three, and each auxiliary buoyancy cabin 6 is connected with the central buoyancy cabin 4 through one truss 7. Mounting grooves (not shown in the figure) are reserved on the side walls of the central buoyancy chamber 4 and the auxiliary buoyancy chamber 6, two ends of the truss 7 are respectively inserted into the mounting grooves on the central buoyancy chamber 4 and the auxiliary buoyancy chamber 6, and the truss 7 can be mounted in the mounting grooves through bolts 101 or welded in the mounting grooves.

Ballast water adjusting devices (not shown) are arranged in the central buoyancy tank 4 and the auxiliary buoyancy tank 6. A lower flange (not shown in the figure) is installed at the center position of the upper surface of the central buoyancy chamber 4, an upper flange (not shown in the figure) is installed at the lower end of the tower 1, the upper flange and the lower flange are identical in shape, and the upper flange and the lower flange are connected through bolts 101 so as to firmly install the tower 1 on the central buoyancy chamber 4. Reinforcing ribs 11 are obliquely arranged between the tower 1 and the central buoyancy cabin 4, so that the structural strength of the tower 1 is enhanced.

The at least three auxiliary buoyancy cabins 6 are uniformly distributed on the same circumference with the center buoyancy cabin 4 as the center, and the at least three auxiliary buoyancy cabins 6 are used for improving the stability of the center buoyancy cabin 4 and reducing the larger fluctuation of the center buoyancy cabin 4 caused by the influence of wind power.

In order to improve or adjust the buoyancy of the wind power foundation, a plurality of small floating barrels 8 are detachably arranged at the bottoms of the central buoyancy cabin 4 and the truss 7, and the small floating barrels 8 are of a closed barrel structure. The central buoyancy cabin 4 and the trusses 7 are detachably connected with a plurality of small floating barrels 8 through floating barrel connecting devices 9, each floating barrel connecting device 9 comprises a cylinder and a steel rod, the lower end of each cylinder is provided with an opening, the inner wall of each cylinder is provided with an internal thread, and the outer wall of each steel rod is provided with an external thread which is matched with the corresponding internal thread. The upper ends of the cylinders are respectively fixed at the joints of the central buoyancy cabin 4 or the small buoyancy barrels 8 to be installed on the truss 7, the steel bars are respectively fixed on the upper surfaces of the small buoyancy barrels 8, when the small buoyancy barrels 8 are installed, the steel bars are inserted into the cylinders, the small buoyancy barrels 8 are rotated, the steel bars and the cylinders are connected in a threaded mode, the structure is simple, the installation is convenient, the buoyancy of the central buoyancy cabin 4 and the truss 7 is improved, the buoyancy center is lifted, and the positions and the number of the small buoyancy barrels 8 can be reasonably calculated according to the buoyancy of the required buoyancy. The small floating barrel 8 is arranged at the bottom of the truss 7, so that the truss 7 has buoyancy, when being purged by strong wind, the buoyancy counteracts part of gravity of the truss 7, the stressed deformation of the truss 7 can be avoided, and the stability of the whole wind power foundation is ensured.

Further, the mooring system 3 comprises a chain 31 and a sinking bottom 32, the sinking bottom 32 is fixed on the sea bottom, the bottom of the auxiliary buoyancy cabin 6 is provided with a chain mounting hole, one end of the chain 31 is connected with the sinking bottom 32, the other end of the chain 31 is connected with the chain mounting hole on the auxiliary buoyancy cabin 6, and the sinking bottom 32 can adopt an anchorage sinking block, an anchor pile or a grabbing anchor structure. The central buoyancy module 4 is also connected to the sea floor by means of a mooring system 3.

In addition, the central buoyancy cabin 4 is formed by assembling a plurality of buoyancy tanks 41, the buoyancy tanks 41 are hollow box structures, and two adjacent buoyancy tanks 41 are connected through a connecting piece 10, so that the upper surfaces of the buoyancy tanks 41 form an integral platform. On the platform a deck can be laid, on which the tower 1 and some accessory facilities are mounted.

In order to improve the structural strength of the central buoyancy chamber 4, the outer periphery of the central buoyancy chamber 4 is wrapped with a fastening band for several weeks, so that the individual buoyancy tanks 41 can be prevented from falling off.

Further optimizing the above embodiment, the connecting piece 10 includes the bolt 101, the steel sheet 102 and the fastening nut 103, and the edge at every buoyancy tank 41 top all pre-buried has the bolt 101, is equipped with two round holes on the steel sheet 102, overlaps on two bolts 101 on two adjacent buoyancy tanks 41 and is equipped with the steel sheet 102, utilizes the steel sheet 102 to link together two adjacent buoyancy tanks 41, is connected with the fastening nut 103 on the bolt 101, plays the spacing effect to the steel sheet 102.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a deep sea floats formula wind power system, includes tower section of thick bamboo (1), wind turbine generator system (2) and anchor system (3), wind turbine generator system (2) are installed in the upper end of tower section of thick bamboo (1), its characterized in that still includes:

the lower end of the tower barrel (1) is arranged at the central position of the upper surface of the central buoyancy cabin (4), and a counterweight cabin (5) is arranged at the central position of the lower surface of the central buoyancy cabin (4);

the auxiliary buoyancy cabins (6) are at least three, at least three auxiliary buoyancy cabins (6) are connected with the central buoyancy cabin (4) through trusses (7), and at least three auxiliary buoyancy cabins (6) are uniformly distributed on the same circumference taking the central buoyancy cabin (4) as the center;

the bottoms of the central buoyancy cabin (4) and the truss (7) are detachably connected with the small buoyancy barrels (8).

2. Deep sea floating wind power system according to claim 1, characterized in that the upper surface of the central buoyancy chamber (4) is provided with a lower flange, the lower end of the tower (1) is provided with an upper flange, and the upper flange and the lower flange are connected by bolts (101).

3. Deep sea floating wind power system according to claim 1, characterized in that the mooring system (3) comprises a chain (31) and a bottom (32), the bottom (32) is fixed on the sea floor, one end of the chain (31) is connected with the bottom (32), the bottom of the auxiliary buoyancy compartment (6) is provided with a chain mounting hole, and the other end of the chain (31) is connected with the chain mounting hole.

4. The deep sea floating wind power system according to claim 1, wherein the central buoyancy cabin (4) and the trusses (7) are connected with a plurality of small floating barrels (8) through floating barrel connecting devices (9), the floating barrel connecting devices (9) comprise cylinders and steel bars, the lower ends of the cylinders are opened, the inner walls of the cylinders are provided with inner threads, the outer walls of the steel bars are provided with outer threads, a plurality of upper ends of the cylinders are respectively fixed at the bottoms of the central buoyancy cabin (4) or the trusses (7), and a plurality of steel bars are respectively fixed on the upper surfaces of the small floating barrels (8) and are in threaded connection with the cylinders.

5. Deep sea floating wind power system according to claim 1, characterized in that the central buoyancy compartment (4) comprises a plurality of buoyancy tanks (41), the buoyancy tanks (41) are hollow tank structures, two adjacent buoyancy tanks (41) are connected through a connecting piece (10), and the upper surfaces of the buoyancy tanks (41) form a platform.

6. The deep sea floating wind power system according to claim 5, wherein the connecting piece (10) comprises bolts (101), steel plates (102) and fastening nuts (103), the bolts (101) are embedded in the edges of the tops of the floating boxes (41), one steel plate (102) is sleeved on two bolts (101) of two adjacent floating boxes (41), and the fastening nuts (103) are connected to the bolts (101) in a threaded mode.