CN115638086A - Floating type fan supporting structure and fan power generation structure - Google Patents

Abstract

The invention relates to a floating type fan supporting structure and a fan power generation structure. The device comprises a support table, a floater unit and a mooring unit, wherein the support table is used for mounting a fan; the floater unit comprises an upper buoy and a lower buoy, the upper buoy and the lower buoy are connected through a flexible cable, the lower buoy is fixedly connected to the support platform, the floater unit is configured to float on the water surface, and the lower buoy is located below the water surface; one mooring end is fixedly connected with the lower buoy and/or the support platform, and the other mooring end is fixedly connected with the seabed. When the wave acted on bearing structure, the upper buoy amplitude of rocking was compared and can be big in lower buoy and bearing structure, and lower buoy is less with rather than fixed connection's brace table amplitude of rocking, and the rocking of upper buoy can balance lower buoy and brace table through flexible cable to be favorable to the brace table to resume steadily fast, and then provide stable production environment for the fan, prolonged whole wind power generation set simultaneously and included bearing structure's life-span and reduced cost of maintenance.

Description

Floating type fan supporting structure and fan power generation structure

Technical Field

The invention relates to the technical field of offshore wind power generation, in particular to a floating type fan supporting structure and a fan power generation structure.

Background

At present, offshore wind power generation is an important component of clean energy, and as the wind turbine is arranged on the sea, a floating wind turbine support structure is generally adopted for sea areas with water depth of more than 50 meters.

The floating type fan supporting structure is divided into four basic forms of barge type, single column type, semi-submersible type and tension leg type, wherein the semi-submersible type foundation is a structural form which accords with the ocean depth condition in China. Present semi-submerged formula basic bearing structure has adopted tie-beam and a plurality of flotation pontoon as bearing structure, and wherein the tie-beam comprises the roof beam that sets up along a plurality of directions such as crossbeam, sloping and perpendicular roof beam, and a plurality of flotation pontoons distribute on the tie-beam to with tie-beam fixed connection, a platform is constituteed to a plurality of tie-beams, the fan is installed on the platform. The influence of waves is received, the shaking amplitude of the floating cylinder and the connecting beam is too large, the normal use of the fan is influenced, the service life of the whole wind power generation device is greatly shortened, and the maintenance cost is greatly increased.

Disclosure of Invention

Based on the floating type fan supporting structure, the invention provides the floating type fan supporting structure, and aims to solve the problems that the service life of a wind power generation device is influenced and the maintenance cost is increased due to overlarge shaking amplitude of the supporting structure. The method comprises the following steps:

the support table is used for mounting the fan;

the floater unit comprises an upper buoy and a lower buoy, the upper buoy and the lower buoy are connected through a flexible cable, the lower buoy is fixedly connected to the support platform, the floater unit is configured to float on the water surface, and the lower buoy is located below the water surface;

and mooring, wherein one end of the mooring is fixedly connected with the lower buoy and/or the support platform, and the other end of the mooring is fixedly connected with the seabed.

In one embodiment, the upper buoy is provided with a damper, the damper comprises a hollow U-shaped pipe and an open pore partition plate, the open pore partition plate is located in an inner cavity of the hollow U-shaped pipe and divides the inner cavity of the hollow U-shaped pipe into two parts, a through hole is formed in the open pore partition plate, liquid is arranged in the hollow U-shaped pipe, and the liquid can flow from one part of the inner cavity to the other part of the inner cavity through the through hole.

In one embodiment, the plurality of dampers are uniformly arranged along the circumferential direction of the upper buoy.

In one embodiment, the upper buoy is provided with a winch, the flexible cable is wound on the winch, and the winch is configured to adjust the distance between the upper buoy and the lower buoy through rotation.

In one embodiment, the lower buoy is hollow and internally provided with a plurality of partition plates, the inner cavity of the lower buoy is divided into a plurality of installation spaces by the partition plates, and at least part of the installation spaces are internally provided with the weight parts.

In one embodiment, the projection profile of the support table along the direction vertical to the water surface is triangular

In one embodiment, the support table comprises a plurality of beams, the plurality of beams are connected, and the extension directions of the plurality of beams are in the same plane.

In one embodiment, at least a region of the projected contour, which is spaced from three vertices of the triangle by a predetermined range, is a mounting region for mounting the float unit.

In one embodiment, the fan is mounted on either side of a triangle in the projected outline.

The invention also provides a fan power generation structure, which comprises the floating type fan supporting structure in any one of the embodiments and a fan.

Above-mentioned floating fan bearing structure (hereinafter referred to as bearing structure) is used for supporting the fan. Firstly, the main body part of the supporting structure is a supporting platform which is used for installing a fan to supply the fan to produce and generate electricity. The stabilization function is responsible for by the float unit, and the float unit includes flotation pontoon and lower flotation pontoon, and flotation pontoon and lower flotation pontoon pass through the flexible cable and connect, and lower flotation pontoon fixed connection is in the brace table, and the flotation pontoon floats on the surface of water, and lower flotation pontoon sinks under the surface of water. When sea waves act on the supporting structure, the upper floating cylinder floats on the water surface, so that the shaking amplitude of the upper floating cylinder is larger than that of the lower floating cylinder and the supporting structure, the shaking amplitude of the lower floating cylinder and the supporting platform fixedly connected with the lower floating cylinder is smaller, and the upper floating cylinder and the lower floating cylinder are connected through the flexible cable instead of rigid connection, so that the influence of the upper floating cylinder on the lower floating cylinder and the supporting platform is smaller, and the supporting platform can be quickly restored to be stable; and finally, the supporting structure is connected with the seabed through mooring, so that the stability of the supporting platform is enhanced, and the whole supporting structure can keep better stability under the action of sea waves. The support structure provided by the invention has small shaking amplitude and strong stability, so that a stable production environment can be provided for the fan, the service life of the whole wind power generation device including the support structure is prolonged, and the maintenance cost is reduced.

Drawings

FIG. 1 is an isometric view of a wind turbine power generation structure according to one embodiment;

FIG. 2 is a side view of the embodiment of FIG. 1;

FIG. 3 is a front view of the structure of the float unit;

FIG. 4 isbase:Sub>A cross-sectional view of the upper buoy of FIG. 3A-A;

FIG. 5 is a cross-sectional view of the lower buoy of FIG. 3B-B;

fig. 6 is a longitudinal sectional view of the C-C float unit of fig. 3;

fig. 7 is a sectional view of the D-DU tuning liquid column damper of fig. 4.

Reference numerals are as follows: a float unit 100; an upper buoy 110; a damper 111; a hollow U-shaped tube 1111; an apertured baffle 1112; a liquid 1113; a winch 112; an upper partition 113; a lower float 120; a lower partition plate 121; a flexible cable 130; a support table 200; a cross-beam 210; mooring 300; a heave plate 400; a fan 500; an operation and maintenance deck 510; a ladder 520.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1, fig. 1 is a schematic view of a wind turbine power generation structure, the present invention provides a floating wind turbine support structure, which includes a support unit 100, a buoy unit 100 and a mooring 300, wherein a support platform 200 is used for installing a wind turbine 500; the float unit 100 comprises an upper float 110 and a lower float 120, the upper float 110 and the lower float 120 are connected by a flexible cable 130, the lower float 120 is fixedly connected to the support platform 200, the float unit 100 is configured such that the upper float 110 floats on the water surface, and the lower float 120 is located below the water surface; the mooring 300 is fixedly connected at one end to the lower buoy 120 and/or the support platform 200 and at the other end to the seabed.

Referring to fig. 1 and 2, fig. 2 is a side view of a wind turbine generator structure deployed in the sea surface, in which a wind turbine 500 is installed on a support 200, and float units 100 are distributed on the support 200, wherein the float units 100 are divided into an upper float 110 and a lower float 120, the lower float 120 is fixedly connected to the support 200 so as to connect the float units 100 to the support 200, the upper float 110 and the lower float 120 are connected by a flexible cable 130, the upper float 110 floats on the water surface, and the lower float 120 is located below the water surface, and it is apparent that the entire support structure can be maintained in a floating state mainly by the upper float 110 in the float unit 100; the mooring 300 is attached at one end to the lower buoy 120 and at one end is fixedly connected to the seabed.

The support structure body part is a support table 200, and the support table 200 is used for mounting a fan 500 for the fan 500 to generate electricity. The stabilizing function is taken care of by the float unit 100. When waves act on the supporting structure, the upper buoy 110 floats on the water surface, and the lower buoy 120 is located below the water surface, so the shaking amplitude of the upper buoy 110 is large compared to that of the lower buoy 120 and the supporting structure. Compared with a giant stand column-buoyancy tank integrated structure adopted by a traditional semi-submersible foundation, most of the volume of the upper floating cylinder 120 is located above the upper floating cylinder, the underwater stress area is smaller, the overall wave-facing area of the supporting structure is remarkably reduced, the influence of wave load is favorably reduced, and the stability of the supporting structure is further improved. The lower buoy 120 and the support table 200 fixedly connected with the lower buoy 120 have smaller shaking amplitude, and the shaking of the upper buoy 110 can balance the shaking of the lower buoy 120 and the support table 200 because the upper buoy 110 and the lower buoy 120 are connected through the flexible cable 130 instead of being rigidly connected, so that the support table 200 can be quickly restored to be stable; finally, the support structure is connected with the seabed through the mooring 300, so that the stability of the support platform 200 is enhanced, and the whole support structure can keep better stability under the action of sea waves. The supporting structure designed in this way has small shaking amplitude and strong stability, so that a stable production environment can be provided for the fan 500, the service life of the whole wind power generation device including the supporting structure is prolonged, and the maintenance cost is reduced.

In other embodiments, one end of the mooring 300 may be fixed to the support platform 200, or a plurality of mooring 300 may be connected to the support platform 200 partially and to the lower buoy 120 partially, so as to achieve better stability of the support structure.

Preferably, in one embodiment, the heave plate 400 is installed at the lower end of the lower buoy 120, the area of the heave plate 400 is larger than the cross-sectional area of the lower buoy 120, and the heave plate 400 can improve the additional mass and viscous damping of the lower buoy 120 to achieve better stability.

Fig. 3 is a structural front view of the float unit 100; FIG. 4 is a cross-sectional view of the upper buoy 110; fig. 7 is a sectional view of the damper 111.

Referring to fig. 3, 4 and 7, in one embodiment, the upper float 110 is provided with a damper 111, the damper 111 includes a hollow U-shaped pipe 1111 and an opening partition 1112, the opening partition 1112 is located in an inner cavity of the hollow U-shaped pipe 1111 and divides the inner cavity of the hollow U-shaped pipe 1111 into two parts, the opening partition 1112 is provided with a through hole, a liquid 1113 is provided in the hollow U-shaped pipe 1111, and the liquid 1113 can pass through the through hole.

The shape of the float unit 100 and the position and structure of the damper 111 in the upper buoy 110 can be seen by combining three figures, in fig. 4, the damper 111 is installed in the upper buoy 110, referring to fig. 7, it can be seen that the damper 111 is U-shaped, the main structure is a hollow U-shaped pipe 1111, in the hollow U-shaped pipe 1111, the damper 111 is provided with an opening partition 1112, the opening partition 1112 divides the inner cavity of the hollow U-shaped pipe into two parts, a through hole is formed in the opening partition 1112, please refer to fig. 7, the opening partition 1112 is provided with a plurality of gaps, namely the through holes, liquid 1113 is arranged in the hollow pipe, and when the hollow pipe shakes, the liquid 1113 flows, so that the liquid can flow from one part of the inner cavity to the other part of the inner cavity through the through hole.

When the supporting structure receives wave acting force on the sea surface, the upper buoy 110 can shake left, right, up and down, so that the damper 111 on the upper buoy 110 is driven to shake, liquid 1113 in the hollow U-shaped pipe 1111 flows, strong shear flow is generated when the liquid 1113 passes through the perforated partition plate 1112 located on the middle cross section of the hollow U-shaped pipe 1111, a vortex is formed due to the viscosity of the liquid 1113, and energy input from the outside is consumed along with the dissipation of the vortex. The setting of attenuator 111 can effectively be alleviated bearing structure's rocking and the tension of flexible cable 130, makes bearing structure can resume stable state more fast to bring stable operational environment and the life who prolongs whole structure and reduce cost of maintenance for fan 500.

In one embodiment, the damper 111 may be disposed outside the upper buoy 110 rather than inside the upper buoy 110.

In one embodiment, the plurality of dampers 111 are evenly arranged along the circumference of the upper buoy 110.

Referring to fig. 4, in one embodiment, it can be seen from a top view that four dampers 111 are installed, two adjacent dampers 111 are uniformly arranged at 90 degrees for a circle, and the four dampers 111 can respond to the wave action in different directions, and compared with one damper 111, the four dampers 111 have a better effect.

Preferably, in some of the embodiments, 6 or 8 dampers 111 can be provided, i.e. more angle facing the waves, and better effect.

Preferably, in one embodiment, the upper buoy 110 may be provided with an upper partition 113 to divide the upper buoy 110 into a plurality of small spaces, and the plurality of dampers 111 are respectively placed in the plurality of small spaces, so that the dampers 111 can be more stably fixed in the upper buoy 110, and the plurality of dampers 111 can be prevented from colliding under the action of waves.

In one embodiment, referring to fig. 3 and 4, it can be seen that four rectangular upper partition plates 113 and one cylindrical upper partition plate 113 are arranged in the upper buoy 110 to divide the upper buoy 110 into five spaces, and four dampers 111 are arranged in four peripheral spaces respectively, so that the mass distribution of the upper buoy is relatively uniform, and the center of gravity is stable and does not shift, thereby affecting the stability of the support structure.

Likewise, in other embodiments, various shapes of the upper baffle 113 may be used to divide the space of the upper buoy 110, so as to add other devices to enhance the stability of the support structure.

In one embodiment, the winch 112 is disposed on the upper buoy 110, the flexible cable 130 is wound on the winch 112, and the winch 112 is configured to rotate to adjust the distance between the upper buoy 110 and the lower buoy 120.

Referring to fig. 4 and 6, fig. 6 is a cross-sectional view of the buoy unit 100, and from a top view and a front view, it can be seen that the winch 112 is positioned in the upper buoy 110 and has the flexible cable 130 wound thereon, and when the winch 112 rotates, the length of the flexible cable 130 between the upper buoy 110 and the lower buoy 120 can be shortened or lengthened, thereby adjusting the distance between the upper buoy 110 and the lower buoy 120. When the support structure is shipped to a place of use, the upper buoy 110 and the lower buoy 120 may be in contact with each other by the winch 112 to reduce a transportation volume and to keep the buoy unit 100 as a whole stable from being damaged, and also to reduce transportation costs. When the supporting structure is in use, the distance between the upper buoy 110 and the lower buoy 120 is purposefully lengthened and shortened according to the conditions of different sea areas, namely the depth of the lower buoy 120 and the supporting platform 200 below the water surface is adjusted, so that the gravity center and the stability of the supporting structure can be better grasped.

Preferably, in some of these embodiments, multiple winches 112 may be provided, with the number of flexible steel cables varying.

In other embodiments, other devices may be used to control the length of the flexible cable 130.

Referring to fig. 5, fig. 5 is a top view of the lower buoy 120, in one embodiment, the lower buoy 120 is hollow and has a plurality of lower partition plates 121 mounted therein, an inner cavity of the lower buoy 120 is divided into a plurality of installation spaces by the lower partition plates 121, and at least a part of the installation spaces are provided with weight members.

It can be seen that the inner cavity of the lower float bowl 120 is divided into five spaces by a plurality of lower partition plates 121, and the lower float bowl 120 may be provided with a weight member in a part of or the whole space thereof to increase the mass. Lower buoy 120 plays the effect that reduces the focus in the use, with the overall stability of controlling whole bearing structure, according to the different situation in sea area, the weight of different weight can be put into to lower buoy 120, because upper buoy 110 floats in the surface of water, lower buoy 120 is located under the surface of water, heavier lower buoy 120 makes it can not sink to the seabed through the pulling force of flexible cable 130, flexible cable 130 receives the action of gravity of buoy 120 can keep the state of tightening simultaneously, compare in that flexible cable 130 constantly buckles until fatigue fracture, life can greatly increased under the state of tightening of flexible cable 130.

Preferably, in one embodiment, the flexible cable 130 may use a steel cable.

Preferably, in some embodiments, weights of different weights may be placed in different spaces of the lower buoy 120, and since the wave forces in different directions are different in different weathers of different sea areas, the gravity center of the support structure may be adjusted to adapt to the waves by placing weights of different weights, and the lower partition plate 121 may serve to limit the movement of the weights in the lower buoy 120, so as to prevent the different weights from mixing together and affecting the stability of the support structure.

Also, the lower float 120 may be formed with a plurality of spaces of different shapes using other dividing members instead of the lower partition 121, instead of being limited to the five spaces in the above-described embodiment, and instead of being limited to the four spaces of the same shape and the middle cylindrical space as shown in fig. 4.

Referring to fig. 1, in one embodiment, the support 200 has a triangular shape in a projection in a direction perpendicular to the water surface.

As can be seen from fig. 1, the projected outline of the support 200 along the direction perpendicular to the water surface is a triangle, which has stronger stability than other polygonal structures.

Preferably, referring to fig. 1, in some embodiments, the support 200 has an equilateral triangle profile in a direction perpendicular to the water surface, and the equilateral triangle profile has better structural strength and stability than a regular triangle.

Similarly, in some embodiments, the projected profile of the supporting platform 200 along the direction perpendicular to the water surface may be a general acute triangle, a right triangle, or an obtuse triangle, according to the different conditions of the sea and the climate change law.

In other embodiments, the support table 200 may be configured as a three-dimensional structure rather than a planar structure as shown in FIG. 1, which may provide greater structural strength than the planar structure.

Referring to fig. 1 and 2, in one embodiment, the support table 200 includes a plurality of beams 210, the plurality of beams 210 are connected, and the plurality of beams 210 extend in the same plane.

Referring to fig. 1 and 2, it can be seen from different perspectives that the support table 200 is a plane structure, and a plurality of beams 210 are connected in a plane to form the support table 200, i.e. the plurality of beams 210 extend in a plane. Compared with a three-dimensional structure, the plane structure can be completely submerged below the water surface along with the lower buoy 120 so as to reduce the gravity center, so that the stability of the supporting structure is better, and the economic cost is lower due to the reduction of materials.

In one embodiment, the plurality of cross members 210 may be made of steel pipes of the same material to ensure the connection strength and reduce the economic cost.

In one embodiment, a region of the projected profile, at least the distance from the three vertices of the triangle being within a predetermined range, is a mounting region for mounting the float unit 100.

Referring to fig. 1, in the embodiment shown in fig. 1, there are five float units 100, three float units 100 are located at three vertices of the support platform 200, the remaining two float units 100 are located at the middle of two sides of the support platform 200, and the float units 100 are disposed at the vertices to maximally surround the support platform 200 with the upper floats 110, so that the vibration amplitude of the support platform 200 is small compared to the vibration amplitude of the float units 100 all installed inside the support platform 200.

In one embodiment, the floating units 100 may be installed at positions close to the vertex, for example, at two positions on two sides 2 meters away from the vertex, according to different situations of the sea, and in the same area, the effect of the large number of the floating units 100 is better, so that the effect of ensuring the floating units 100 to the maximum under the condition that the floating units 100 are installed too close can be avoided, the collision caused by the close proximity of two adjacent floating units 100 can also be avoided, and meanwhile, the stability of the supporting structure is improved.

Preferably, in one embodiment, the support table 200 may be composed of a plurality of small triangulation frames, which together form a large triangulation frame, so that a plurality of the float units 100 are installed at the vertices of the small triangulation frame, such as the support table 200 of fig. 1 composed of 4 small triangulation frames. Due to the stability of the triangle, the float unit 100 is installed at the vertex where the plurality of small triangular net frames are connected with each other, not only improving the stability, but also improving the structural strength of the support table 200.

Preferably, when the triangular net frame is an equilateral triangle, referring to fig. 1, in the embodiment of fig. 1, the support table 200 is a large equilateral triangle net frame formed by 4 small triangular net frames, which has the same advantages as the above-mentioned embodiment, and the equilateral triangle adopted in this embodiment is better in structure than other ordinary triangles.

Preferably, in one embodiment, when the triangulation network is larger or more float units 100 are needed, more small triangulation networks may be used in combination to form the triangulation network.

In one embodiment, the fan 500 is mounted on either side of a triangle in the projected outline.

Referring to fig. 1 and 2, the fan 500 is installed at the middle of one of the sides of the support platform 200, and compared with the fan 500 installed inside or at the top of the support platform 200, the fan 500 is installed at the side to facilitate the maintenance and inspection of the operation and maintenance ship or other ships, and because the fan does not occupy the top position, one of the float units 100 at the three top points loses the buoyancy function, and the whole support structure does not tilt excessively to overturn.

Similarly, in some other embodiments, when the float unit 100 is installed in the middle of each of the three sides of the support table 200, the blower 500 may be installed in any position of any one side, for example, a position of one side away from one third or one fourth of the end point of the side, and the installation position is not fixed, which will not be described herein again.

The invention also provides a fan power generation structure, which comprises any one of the floating fan support structures in the above embodiments and a fan 500, and referring to fig. 1, the fan 500 comprises an operation and maintenance deck 510 and a ladder 520 which are installed on the fan 500, so that workers can conveniently enter the fan 500 for maintenance and inspection.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A floating fan support structure for supporting a fan, comprising:

the support table is used for mounting the fan;

the floater unit comprises an upper buoy and a lower buoy, the upper buoy and the lower buoy are connected through a flexible cable, the lower buoy is fixedly connected to the support platform, the floater unit is configured to float on the water surface through the upper buoy, and the lower buoy is located below the water surface;

and mooring, wherein one end of the mooring is fixedly connected with the lower buoy and/or the support platform, and the other end of the mooring is fixedly connected with the seabed.

2. The floating type fan supporting structure according to claim 1, wherein a damper is mounted on the upper buoy, the damper comprises a hollow U-shaped pipe and a perforated partition plate, the perforated partition plate is located in an inner cavity of the hollow U-shaped pipe and divides the inner cavity of the hollow U-shaped pipe into two parts, a through hole is formed in the perforated partition plate, liquid is arranged in the hollow U-shaped pipe, and the liquid can pass through the through hole.

3. A floating fan support structure as claimed in claim 2, wherein the plurality of dampers are evenly arranged along the circumference of the upper pontoon.

4. A floating wind turbine support structure according to claim 1, wherein a winch is provided on the upper buoy, the flexible cable being wound on the winch, the winch being configured to be rotated to adjust the spacing between the upper buoy and the lower buoy.

5. A floating fan support structure according to claim 1, wherein the lower pontoon is hollow and has a plurality of lower partitions mounted therein, the lower pontoon having an inner cavity divided into a plurality of mounting spaces by the lower partitions, and wherein weights are provided in at least some of the mounting spaces.

6. A floating wind turbine support structure according to claim 1, wherein said support platform is substantially triangular in vertical projection in a horizontal direction when horizontally disposed.

7. The floating fan support structure according to claim 6, wherein the support platform comprises a plurality of beams, the plurality of beams are connected, and the extension directions of the plurality of beams are in the same plane.

8. A floating fan support structure according to claim 6, wherein at least a region of the projected profile at a predetermined range of distances from the three vertices of the triangle is a mounting region for mounting the float unit.

9. A floating fan support structure according to claim 6, wherein the fan is mounted on either side of the triangle in the projected outline.

10. A wind turbine power generating structure comprising the floating wind turbine support structure of any one of claims 1-9, further comprising the wind turbine.

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