CN216767647U

CN216767647U - Floating type wind power foundation with hollow structure and fan

Info

Publication number: CN216767647U
Application number: CN202220285744.2U
Authority: CN
Inventors: 于光明; 陈美合; 王卫; 张泽超; 代加林; 罗仑博; 祝文龙; 张博
Original assignee: China Three Gorges Corp
Current assignee: China Three Gorges Corp
Priority date: 2022-02-11
Filing date: 2022-02-11
Publication date: 2022-06-17
Anticipated expiration: 2032-02-11
Also published as: DE202022000533U1

Abstract

The utility model relates to the technical field of offshore wind power equipment, in particular to a floating wind power foundation with a hollow structure and a fan. Take hollow structure's floating wind power basis includes: a damping plate having an annular structure; the axis of the inner cylinder is vertical to the damping plate, and the lower end of the inner cylinder is fixed on the plate surface of the damping plate; the outer cylinder is coaxial with the inner cylinder, the lower end of the outer cylinder is fixed on the plate surface of the damping plate, and the outer cylinder and the inner cylinder enclose an annular area; the plurality of partition plates are distributed along the circumferential direction of the inner cylinder to divide the annular area into a plurality of cabin bodies, and at least one of the cylinder wall of the inner cylinder, the cylinder wall of the outer cylinder and the partition plates is internally provided with a hollow part; the top plate is of an annular structure, and the plate surface of the top plate covers the top of the annular area; and the plurality of groups of anchoring components are uniformly distributed along the circumferential direction of the outer cylinder and are suitable for anchoring the whole structure in the seabed. The floating wind power foundation with the hollow structure provided by the utility model can reduce the material consumption, so that the manufacturing cost of the floating body structure is reduced.

Description

Floating type wind power foundation with hollow structure and fan

Technical Field

The utility model relates to the technical field of offshore wind power equipment, in particular to a floating wind power foundation with a hollow structure and a fan.

Background

Under the background of carbon peak reaching, carbon neutralization and global disputes to enter a new energy revolution stage, green and clean renewable energy sources are developed, sustainable development is realized, and a wind power generation technology becomes one of emerging means for realizing the aim. Along with the high-speed development of onshore wind power, resources are less and less, in comparison, offshore wind power has the advantages of high sea surface wind speed, stable wind direction, no land occupation and the like, and the future development potential is huge, offshore wind power walks into deep sea from offshore shallow sea, and must walk into deep and distant sea areas to be developed on the next step, along with the increase of water depth, the external conditions are more severe, the cost advantage of a fixed foundation in deep sea is greatly reduced, and in order to continue to advance to deep and distant sea, the offshore floating wind power foundation is primarily developed in recent years.

In the aspect of floating wind power technology, because of high wind speed and strong wave action in deep and open sea, in order to resist the super-strong sloshing force generated by external load, the main floating body structure of the floating foundation is generally designed to be large in size, so that the resistance of the foundation of the wind turbine meets the requirement. The traditional reinforced concrete floating foundation is processed by a solid thick plate with a large wall thickness, the floating body structure is high in manufacturing cost and causes great waste, and further optimization is needed in the aspects of design ideas, manufacturing methods and the like of the floating body structure.

SUMMERY OF THE UTILITY MODEL

Therefore, the technical problem to be solved by the utility model is to overcome the defect that the floating body structure of the floating type wind power foundation in the prior art is high in cost, so that the floating type wind power foundation with the hollow structure and the fan are provided.

The utility model provides a floating wind power foundation with a hollow structure and a fan, comprising:

a damping plate having an annular structure;

the axis of the inner cylinder is vertical to the damping plate, and the lower end of the inner cylinder is fixed on the plate surface of the damping plate;

the outer cylinder is coaxial with the inner cylinder, the lower end of the outer cylinder is fixed on the plate surface of the damping plate, and the outer cylinder and the inner cylinder form an annular area;

the partition plates are distributed along the circumferential direction of the inner cylinder to divide the annular area into a plurality of cabin bodies, and at least one of the cylinder wall of the inner cylinder, the cylinder wall of the outer cylinder and the partition plates is internally provided with a hollow part;

the top plate is of an annular structure, and the plate surface of the top plate covers the top of the annular area;

and the plurality of groups of anchoring components are uniformly distributed along the circumferential direction of the outer cylinder and are suitable for anchoring the whole structure in the seabed.

Optionally, the lower part of the hollow part is communicated with the corresponding cabin body through a communicating channel, a communicating part is arranged at the bottom of the partition board, and two adjacent cabin bodies are communicated through the communicating part.

Optionally, the hollow portion is a hollow pipeline which is vertically arranged, the upper end of the hollow pipeline extends to the upper end face of the inner cylinder or the upper end face of the outer cylinder or the upper end face of the partition plate, and a gap is reserved between the lower end of the hollow pipeline and the lower end face of the inner cylinder or the lower end face of the outer cylinder or the lower end face of the partition plate.

Optionally, at least one of the damping plate, the inner cylinder, the outer cylinder, the partition plate and the top plate is preformed.

Optionally, the damping plate, the partition plate and the top plate are formed in a prefabricated mode, and the inner cylinder and the outer cylinder are formed in a cast-in-place mode.

Optionally, the partition plate, the damping plate, the top plate, the outer cylinder and the inner cylinder are all connected through an L-shaped clamping piece and a bolt.

Optionally, the anchoring assembly comprises:

the fixed support is fixed on the outer side of the outer cylinder;

a pile anchor adapted to be pressed into the sea floor;

and one end of the anchor chain is connected with the fixed support, and the other end of the anchor chain is connected with the pile anchor.

Optionally, the inner cylinder and the outer cylinder are of square cylinder structures, and four corners of each square cylinder structure are in obtuse angle transition.

Optionally, the partition board is divided into:

the first partition plate is in a folded plate shape and is fixed at the corner of the square tube structure, and the first partition plate is vertically connected with the inner tube and the outer tube;

and the second partition plate is in a plane plate shape and is fixed on the rest parts of the square cylinder structure except for corners, and the second partition plate is vertically connected with the inner cylinder and the outer cylinder.

The utility model provides a fan, comprising:

the floating wind power foundation with the hollow structure is described above;

the fan tower drum is fixed on the top plate and is vertical to the top plate;

the fan unit is fixed at the top end of the fan tower cylinder, and an output shaft of the fan unit is perpendicular to the fan tower cylinder;

and the fan paddle is arranged on the output shaft of the fan unit.

The technical scheme of the utility model has the following advantages:

1. the utility model provides a floating type wind power foundation with a hollow structure, which is provided with a damping plate, wherein an inner cylinder and an outer cylinder are fixed on the damping plate, the inner cylinder and the outer cylinder enclose an annular region, a top plate is fixed at the top of the annular region, and a closed space is formed among the damping plate, the inner cylinder, the outer cylinder and the top plate, so that a structural foundation required by floating is met; a plurality of clapboards are arranged in the annular area along the circumferential direction, so that the function of reinforcing rib plates is achieved, and the requirement on structural strength can be met; the urceolus sets up multiunit anchor subassembly along circumference, can be with the whole anchor of structure at sea, guarantees structural stability. In addition, at least one of the cylinder wall of the inner cylinder, the cylinder wall of the outer cylinder and the partition plate is internally provided with a hollow part, so that the material consumption can be reduced, the manufacturing cost of the floating body structure is reduced, and a new design idea is provided for cost reduction and efficiency improvement of floating offshore wind power.

2. According to the floating type wind power foundation with the hollow structure, the lower part of the hollow part is communicated with the corresponding cabin body through the communicating channel, and the communicating part is formed in the bottom of the partition plate to enable the two adjacent cabin bodies to be communicated, so that fillers such as water and sand can be filled in the hollow part, the whole structure is ballasted, the gravity center of the floating body structure is further reduced, and the integral stability of the floating body structure under the action of base excitation force such as ocean water, wind load and the like is enhanced.

3. According to the floating wind power foundation with the hollow structure, the hollow part is a hollow pipeline, the upper end of the hollow pipeline extends to the end face of the corresponding structure, and the solid structure part is reserved at the lower end of the hollow pipeline, so that fillers can be conveniently filled, and meanwhile, the processing difficulty of the hollow part is reduced.

4. According to the floating wind power foundation with the hollow structure, at least one of the damping plate, the inner cylinder, the outer cylinder, the partition plate and the top plate is prefabricated and molded, so that the wharf platform does not need to be processed in a full cast-in-place mode, a processing mode combining prefabrication and cast-in-place or a full prefabricated processing mode can be adopted, the installation speed can be effectively increased, and the construction time of a coastal wharf can be shortened.

5. According to the floating wind power foundation with the hollow structure, the inner barrel and the outer barrel which are in direct contact with seawater are both cast in situ, so that the integral sealing performance of the wind power foundation can be ensured.

6. According to the floating type wind power foundation with the hollow structure, the inner cylinder and the outer cylinder are both of the square cylinder structure, and four corners of the square cylinder structure are in obtuse angle transition, so that local overlarge stress of the square cylinder structure at the corners can be reduced, and the stability of the whole structure is guaranteed.

7. According to the floating wind power foundation with the hollow structure, the partition plates are vertically connected with the inner cylinder and the outer cylinder, so that the partition plates can resist larger impact force; and partial partition board adopts the folded plate shape, cooperates obtuse angle transition structure, can make the baffle connect the corner at the urceolus, has strengthened the structural strength at corner.

8. The fan provided by the utility model has any one of the advantages because of the floating type wind power foundation with the hollow structure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is an exploded schematic view of a floating wind power foundation according to an embodiment of the present invention;

FIG. 2 is an overall schematic view (with the top plate removed) of the floating wind power foundation according to the embodiment of the utility model;

FIG. 3 is a schematic cross-sectional view of the hollow duct of the present invention;

FIG. 4 is a schematic structural diagram of a separator according to an embodiment of the present invention;

FIG. 5 is a schematic view of the assembly of a preformed separator plate according to an embodiment of the utility model;

FIG. 6 is a top view of an assembled structure of a prefabricated form partition in an embodiment of the present invention;

FIG. 7 is a schematic view of an assembly joint of a prefabricated form partition in an embodiment of the utility model;

fig. 8 is a schematic structural diagram of a fan in an embodiment of the present invention.

Description of reference numerals:

1. a damping plate; 2. an inner barrel; 3. an outer cylinder; 4. a partition plate; 41. a first separator; 42. a second separator; 5. a top plate; 6. an anchor assembly; 61. a fixed support; 62. pile anchor; 63. an anchor chain; 71. a hollow part; 72. a communication channel; 73. a communicating portion; 81. an L-shaped clamping piece; 82. a bolt; 83. a bolt bushing; 84. an end plate; 91. a fan tower; 92. a fan unit; 93. a fan blade; 94. a hub.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1

Referring to fig. 1 to 7, the present embodiment provides a floating wind power foundation with a hollow structure, including:

the damping plate 1 is of an annular structure, namely the damping plate is of an annular plate structure as a whole and is positioned at the bottommost part of the foundation when in use;

the axis of the inner cylinder 2 is vertical to the damping plate 1, and the lower end of the inner cylinder is fixed on the plate surface of the damping plate 1, and the cylinder is a hollow shell structure with openings at two ends;

the outer cylinder 3 is coaxial with the inner cylinder 2, the lower end of the outer cylinder 3 is fixed on the plate surface of the damping plate 1, the outer cylinder 3 and the inner cylinder 2 enclose an annular area, the upper end surfaces of the outer cylinder 3 and the inner cylinder 2 are required to be flush, namely the axial lengths of the outer cylinder 3 and the inner cylinder 2 are the same, and a fan part is required to be fixed at the top end of the outer cylinder and the inner cylinder, so that the fan part belongs to mature design in the field;

the partition plates 4 are all positioned in the annular area, the partition plates 4 are distributed along the circumferential direction of the inner cylinder 2 to divide the annular area into a plurality of cabin bodies, and at least one of the cylinder wall of the inner cylinder 2, the cylinder wall of the outer cylinder 3 and the partition plates 4 is internally provided with a hollow part 71; the partition plate 4 mainly provides hinged support constraint for the outer cylinder 3 and the inner cylinder 2, and the length of a free section is reduced.

The top plate 5 is of an annular structure, and the plate surface of the top plate 5 covers the top of the annular area;

the plurality of groups of anchoring components 6 are uniformly distributed along the circumferential direction of the outer cylinder 3 and are suitable for anchoring the whole structure in the seabed.

The floating wind power foundation with the hollow structure has the advantages that the hollow part 71 is arranged in at least one of the cylinder wall of the inner cylinder 2, the cylinder wall of the outer cylinder 3 and the partition plate 4, so that the material consumption can be reduced, the manufacturing cost of the floating body structure is reduced, and a new design idea is provided for cost reduction and efficiency improvement of floating offshore wind power.

In this embodiment, as shown in fig. 1, the damping plate 1 is a square ring plate structure, and the inner cylinder 2 and the outer cylinder 3 are square cylinder structures, which is convenient for processing. In other embodiments, the damping plate 1 can also be a circular ring plate structure, and the inner cylinder 2 and the outer cylinder 3 are correspondingly cylinder structures; or the damping plate 1 is of a pentagonal annular plate structure, and the inner cylinder 2 and the outer cylinder 3 are correspondingly of pentagonal cylinder structures; or other common shapes.

Furthermore, as shown in fig. 1, in this embodiment, obtuse angle transitions are adopted at four corners of the square tube structure, and the obtuse angle transitions are formed by cutting off the corners of the square tube structure by using a vertical surface to form eight edges, and then completing the cut-off portions by using a flat plate or a curved plate, so that an obtuse angle is formed between the original tube wall of the square tube structure and the newly-added flat plate or curved plate. The obtuse angle transition can reduce the local too big atress of square tube structure in the corner to guarantee overall structure's stability.

Further, as shown in fig. 1 and 2, the partition plate 4 of the present embodiment is divided into: the first partition plate 41 is in a folded plate shape and is fixed at the corner of the square tube structure, and the first partition plate 41 is vertically connected with the inner tube 2 and the outer tube 3; and a second partition plate 42 which is in a flat plate shape and is fixed on the other parts except the corner of the square tube structure, wherein the second partition plate 42 is vertically connected with the inner tube 2 and the outer tube 3. Because baffle 4 is generally perpendicular to be connected with the section of thick bamboo wall, if the corner does not set up obtuse angle transition structure, that corner does not have baffle 4 to carry out the structure and strengthens in fact, this embodiment through obtuse angle transition structure's design and the baffle 4 of folded plate shape, can connect baffle 4 on the newly-increased flat board of corner or curved plate to the structural strength of corner has been strengthened.

Specifically, as shown in fig. 2, in this embodiment, two first partition plates 41 are disposed at each corner, and the two first partition plates 41 are symmetrical to each other, so as to ensure uniform stress at the corners, thereby ensuring structural strength.

In this embodiment, the inner cylinder 2 is aligned with the inner ring edge of the damping plate 1, which is beneficial to lowering the structural center of gravity and saving materials. In other embodiments, a part of the plate surface may be left on the inner ring edge of the inner cylinder 2 and the damping plate 1.

In the embodiment, as shown in fig. 2, a part of the plate surface is left on the outer ring edge of the outer cylinder 3 and the damping plate 1, that is, the damping plate 1 extends to the periphery of the outer cylinder 3, which facilitates the installation of the partition plate 4, the outer cylinder 3 and the inner cylinder 2 on the damping plate 1. In other embodiments, the outer cylinder 3 may be aligned with the outer ring edge of the damping plate 1.

In the embodiment, the inner ring edge of the top plate 5 is aligned with the inner cylinder 2, and the outer ring edge of the top plate 5 is aligned with the outer cylinder 3, so that the minimum consumption of materials is achieved on the premise of meeting the floating structure foundation. Of course, in other embodiments, the top plate 5 may extend toward the outer periphery of the outer cylinder 3.

In this embodiment, as shown in fig. 4, the hollow portion 71 is a hollow pipeline vertically arranged, an upper end of the hollow pipeline extends to an upper end surface of the inner cylinder 2 or an upper end surface of the outer cylinder 3 or an upper end surface of the partition plate 4, and a gap is left between a lower end of the hollow pipeline and a lower end surface of the inner cylinder 2 or a lower end surface of the outer cylinder 3 or a lower end surface of the partition plate 4. The filling material can be filled into the hollow part 71 from the upper end, so that the filling is more convenient; meanwhile, compared with a structure with two ends not opened or the lower end opened, the processing difficulty of the hollow part 71 is reduced. In other embodiments, the hollow portion 71 may be a curved conduit or a sheet-like or block-like region.

Specifically, as shown in fig. 3, the cross-sectional shape of the hollow conduit may be circular, elliptical, hexagonal, quadrilateral, or other common shapes.

In the present embodiment, as shown in fig. 2, the anchor assembly 6 includes: a fixed support 61 fixed on the outer side of the outer cylinder 3; a pile anchor 62 adapted to be pressed into the sea floor; and an anchor chain 63 having one end connected to the fixing support 61 and the other end connected to the pile anchor 62. The fixing support 61 can be prefabricated or fixed on the outer side of the outer cylinder 3 through a connecting piece. The structure has reliable connection performance and convenient installation. In other embodiments, the fixing bracket 61 may be omitted and the anchor chain 63 may be directly fixed to the outside of the outer cylinder 3. In the embodiment, three groups of anchoring components 6 are arranged and uniformly distributed along the circumferential direction of the outer cylinder 3; in other embodiments, the anchoring assemblies 6 may be uniformly arranged in four or five or more groups along the axial direction of the outer cylinder 3.

In a further improvement, as shown in fig. 4, the lower part of the hollow part 71 is communicated with the corresponding cabin body through a communication channel 72, the bottom of the partition plate 4 is provided with a communication part 73, and two adjacent cabin bodies are communicated through the communication part 73. In this way, fillers such as water and sand can be filled in the hollow part 71 to ballast the whole structure, further reduce the gravity center of the floating body structure and enhance the overall stability of the floating body structure under the action of basic sloshing force such as ocean water, wind load and the like. Of course, in other embodiments, if the hollow portion 71 is not communicated with the cabin bodies and the cabin bodies are not communicated with each other, the material filling operation can also be performed, and only separate filling is needed, which is troublesome, and the requirement on the amount of the filling material of each part is high, which easily causes the center of gravity of the floating body structure to deviate, and affects the structural stability.

Specifically, as shown in fig. 4, the communication channel 72 of the present embodiment is a horizontally arranged circular pipe, the communication channels 72 in the inner cylinder 2 and the outer cylinder 3 extend only to one side of the cabin, and the communication channel 72 in the partition plate 4 extends to both sides to function as both the communication channel 72 and the communication part. Of course, in other embodiments, the communication channel 72 may be a rectangular pipe or other common shapes, and the communication part 73 may be separated from the communication channel 72 and separately disposed at the bottom of the partition plate 4.

Specifically, in the present embodiment, a plurality of openable and closable windows are provided in the top plate 5, and the material can be filled through the windows, thereby realizing ballasting and adjustment of each cabin.

In particular, the filling material is preferably water, but may be sand or other fluid material.

In this embodiment, as shown in fig. 5, the damping plate 1, the partition plate 4, and the top plate 5 are formed by prefabrication, and the inner cylinder 2 and the outer cylinder 3 are formed by cast-in-place. Therefore, the wharf platform does not need to be processed in a full cast-in-place mode, a processing mode combining prefabrication and cast-in-place or a full prefabrication processing mode can be adopted, the installation speed can be effectively improved, and the construction time of the wharf on the coast can be shortened; and, the inner cylinder 2 and the outer cylinder 3 which are in direct contact with the seawater are both cast in situ, so that the overall sealing performance of the wind power foundation can be ensured. In other embodiments, all the components can be prefabricated and formed, and only a post-pouring belt is reserved or a sealing waterproof durable material is filled at the splicing seam of the outer cylinder 3 to ensure the waterproofness; or the damping plate 1 and the partition plate 4 are prefabricated and molded; or the inner cylinder 2 and the outer cylinder 3 are prefabricated and formed, namely: at least one of the damping plate 1, the inner cylinder 2, the outer cylinder 3, the partition plate 4 and the top plate 5 is prefabricated and molded.

Further, as shown in fig. 6 and 7, the partition plate 4 of the present embodiment is connected with the damping plate 1, the top plate 5, the outer cylinder 3 and the inner cylinder 2 through the L-shaped fastener 81 and the bolt 82, so that the installation is more convenient and the connection is more firm. In other embodiments, the connection can be performed by other fixing connection methods such as a buckle.

Furthermore, in the embodiment, the draft position is marked on the outer cylinder 3 in advance, the coating capable of preventing seawater corrosion is sprayed on the surface of the part of the main floating body structure below the sea level, and the double-layer coating, namely the seawater corrosion-resistant coating and the coating with aging resistance and ultraviolet resistance, is sprayed on the surface of the part of the main floating body structure above the sea level.

Based on the above specific implementation, the construction method of the floating wind power foundation with the hollow structure in the embodiment is as follows:

s1, dividing a damping plate 1 into different small-size assembled plates according to design sizes, performing block-wise large-scale prefabrication in a land factory, and reserving a certain length of vertical stressed steel bar at the connecting position of the damping plate 1, an inner cylinder 2 and an outer cylinder 3 for later-stage assembly;

s2, prefabricating a first layer of partition plate 4, binding stressed steel bars and constructional steel bars, then installing a mold, as shown in figure 4, reserving a plurality of communicating parts 73 at the bottom of the first layer of partition plate 4, embedding bolt sleeves 83 and end plates 84 at the edge of the first layer of partition plate 4, vertically placing a plurality of cylindrical rubber inflatable capsules or special foam molds at a certain horizontal interval from bottom to top in the mold, and filling the hollow pipeline; a communication channel 72 is arranged at the lower part of each hollow pipeline, so that the hollow pipelines are communicated with the cabin body, and ballast liquid in the cabin body can conveniently flow to the hollow structure; then pouring concrete, and taking out the rubber capsule or the foam mould after the strength meets the requirement; sequentially prefabricating other plate elements such as a second-layer partition plate 4, a third-layer partition plate 4, a fourth-layer partition plate 4 and the like, wherein the communication parts 73 are not arranged on the partition plates 4 except the first-layer partition plate 4;

s3, transporting the prefabricated member of the damping plate 1 to a wharf, assembling on a wharf mounting platform, filling waterproof materials at joints for waterproof treatment, and forming the complete damping plate 1 after assembling is completed;

s4, binding stress steel bars and construction steel bars of the outer cylinder 3 and the inner cylinder 2 on a wharf mounting platform, binding the stress steel bars and the construction steel bars with vertical stress steel bars reserved on the damping plate 1, mounting a template, placing a plurality of cylindrical rubber inflatable capsules or special foam molds in the template at a certain horizontal interval from the damping plate 1 above a certain height along the vertical direction, and filling the hollow pipeline position; a communication channel 72 is arranged at the lower part of each hollow pipeline, so that the hollow pipelines are communicated with the cabin body, and ballast liquid in the cabin body can conveniently flow to the hollow structure; embedding a nut sleeve 83 and an end plate 84, and then pouring concrete to the same height position of the prefabricated partition plate 4;

s5, when the concrete strength of the outer cylinder 3 and the inner cylinder 2 meets the requirement, hoisting the first layer of partition plate 4 and installing L-shaped clamping pieces 81 as shown in the drawings 5 to 7, placing the L-shaped clamping pieces 81, then respectively installing screws to the first layer of partition plate 4, the outer cylinder 3 and the inner cylinder 2, and then screwing the screw caps; the screw and nut may be replaced by a bolt 82;

s6, sequentially pouring the outer cylinder 3 and the inner cylinder 2 on each layer according to the steps of S4 and S5, installing the partition plates 4 at corresponding positions, and then constructing the top plate 5 and the fixed support 61 to finish the assembly of the main floating body structure;

and S7, connecting the traction ship with the wharf mounting platform, dragging the main floating body structure together to the wharf closed water tank, pumping out seawater in the water tank, fixing the wharf mounting platform and the pond bottom sleepers after the wharf mounting platform and the main floating body structure descend to the pond bottom sleepers together, then discharging water into the water tank, enabling the main floating body structure to separate from the wharf mounting platform and float on water independently, and transporting the main floating body structure to the original wharf mounting position by the traction ship in a floating manner.

Example 2

Referring to fig. 8, the present embodiment provides a fan including:

the floating wind power foundation with the hollow structure described in embodiment 1;

the fan tower cylinder 91 is fixed on the top plate 5 and is vertical to the top plate 5;

the fan unit 92 is fixed at the top end of the fan tower cylinder 91, and an output shaft of the fan unit 92 is perpendicular to the fan tower cylinder 91;

and the fan blades 93 are arranged on the output shaft of the fan unit 92.

The construction method of the fan in the embodiment is as follows:

s1, hoisting a fan tower cylinder 91 to connect the bottom end of the fan tower cylinder 91 with a top plate 5, hoisting a fan unit 92, installing the fan unit 92 at the top end of the fan tower cylinder 91 and installing a hub 94 at one side of the fan unit 92, and finally sequentially installing three fan blades 93 on the hub 94 to complete the assembly of the overwater part;

s2, floating and transporting the fan and the main floating body structure to a designated installation position on the sea integrally through a plurality of towing ships, constructing a pile anchor 62, pressing the pile anchor 62 into the seabed by a certain depth, and connecting the end part of an anchor chain 63 to the pile anchor 62;

and S3, adjusting the seawater ballast height of the main floating body structure to enable the wind power foundation to reach the designed draft position marked by the outer cylinder 3, and completing the whole construction.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims

1. The utility model provides a take hollow structure's floating formula wind-powered electricity generation basis which characterized in that includes:

a damping plate (1) of annular configuration;

the axis of the inner cylinder (2) is vertical to the damping plate (1), and the lower end of the inner cylinder is fixed on the surface of the damping plate (1);

the outer cylinder (3) is coaxial with the inner cylinder (2), the lower end of the outer cylinder is fixed on the plate surface of the damping plate (1), and the outer cylinder (3) and the inner cylinder (2) enclose an annular area;

the partition plates (4) are all positioned in the annular area, the partition plates (4) are distributed along the circumferential direction of the inner cylinder (2) to divide the annular area into a plurality of cabin bodies, and at least one of the cylinder wall of the inner cylinder (2), the cylinder wall of the outer cylinder (3) and the partition plates (4) is internally provided with a hollow part (71);

the top plate (5) is of an annular structure, and the plate surface of the top plate (5) covers the top of the annular area;

and a plurality of groups of anchoring components (6) are uniformly distributed along the circumferential direction of the outer cylinder (3) and are suitable for anchoring the whole structure in the seabed.

2. The floating wind power foundation with the hollow structure according to claim 1, wherein the lower part of the hollow part (71) is communicated with the corresponding cabin body through a communication channel (72), the bottom of the partition board (4) is provided with a communication part (73), and two adjacent cabin bodies are communicated through the communication part (73).

3. The floating wind power foundation with a hollow structure according to claim 1 or 2, wherein the hollow part (71) is a hollow pipeline arranged vertically, the upper end of the hollow pipeline extends to the upper end surface of the inner cylinder (2) or the upper end surface of the outer cylinder (3) or the upper end surface of the partition plate (4), and a gap is reserved between the lower end of the hollow pipeline and the lower end surface of the inner cylinder (2) or the lower end surface of the outer cylinder (3) or the lower end surface of the partition plate (4).

4. The floating wind power foundation with the hollow structure according to claim 1, wherein at least one of the damping plate (1), the inner cylinder (2), the outer cylinder (3), the partition plate (4) and the top plate (5) is preformed.

5. The floating wind power foundation with the hollow structure according to claim 4, wherein the damping plate (1), the partition plate (4) and the top plate (5) are formed by prefabrication, and the inner cylinder (2) and the outer cylinder (3) are formed by cast-in-place.

6. The floating wind power foundation with the hollow structure according to claim 5, wherein the partition plate (4) is connected with the damping plate (1), the top plate (5), the outer cylinder (3) and the inner cylinder (2) through L-shaped clamping pieces (81) and bolts (82).

7. The floating wind power foundation with hollow structure according to claim 1 or 2 or 4, characterized in that the anchoring assembly (6) comprises:

a fixed support (61) fixed to the outside of the outer cylinder (3);

a pile anchor (62) adapted to be driven into the sea floor;

and one end of the anchor chain (63) is connected with the fixed support (61), and the other end of the anchor chain is connected with the pile anchor (62).

8. The floating wind power foundation with the hollow structure according to claim 1, 2 or 4, characterized in that the inner cylinder (2) and the outer cylinder (3) are square cylinder structures, and four corners of the square cylinder structures are in obtuse angle transition.

9. The floating wind power foundation with hollow structure according to claim 8, characterized in that the partition (4) is divided into:

the first partition plate (41) is in a folded plate shape and is fixed at the corner of the square tube structure, and the first partition plate (41) is vertically connected with the inner tube (2) and the outer tube (3);

and the second partition plate (42) is in a plane plate shape and is fixed on the rest part of the square cylinder structure except for a corner, and the second partition plate (42) is vertically connected with the inner cylinder (2) and the outer cylinder (3).

10. A fan, comprising:

a floating wind power foundation with a hollow structure as claimed in any one of claims 1-9;

the fan tower cylinder (91) is fixed on the top plate (5) and is vertical to the top plate (5);

the fan unit (92) is fixed at the top end of the fan tower cylinder (91), and an output shaft of the fan unit (92) is perpendicular to the fan tower cylinder (91);

and the fan blade (93) is arranged on the output shaft of the fan unit (92).