CN114872846A - Floating type fan foundation transportation structure and construction method thereof - Google Patents

Abstract

The invention provides a floating fan base transport structure and a construction method thereof, belonging to the technical field of offshore wind power generation equipment. The transport structure includes a hull, a bracket assembly, an above-water column, an underwater column and two bar-shaped connecting sections. One end of the hull is provided with a mounting recess, and slide rails are provided on the mounting surfaces at both ends of the mounting recess. The bracket assembly includes two vertical centralizing brackets, which are respectively slidably installed on the two sliding rails, and a holding ring is arranged on the vertical centralizing brackets. The holding rings on the two vertical centralizing brackets are combined to clamp and fix the water column in the installation recess. The side wall of the water column is provided with a rotating shaft. One end is fixedly connected with the underwater column. By adopting the transportation structure and construction method, the operation difficulty of docking and installation of the floating wind turbine foundation and the offshore wind turbine on the sea is reduced while the transportation cost is reduced, and the construction efficiency is improved.

Description

A kind of floating fan foundation transportation structure and construction method thereof

technical field

The invention relates to the technical field of offshore wind power generation equipment, in particular to a floating fan base transportation structure and a construction method thereof.

Background technique

As a kind of clean energy, offshore wind power is rich in resources and close to the urban load center, so it is convenient to consume locally. Therefore, the development of offshore wind power has gradually become an important support for the transformation of the global energy structure. With the continuous improvement of energy demand, the development of offshore wind power has gradually developed to deeper and farther sea areas. The far-reaching sea area is rich in resources, but with the increase of water depth, the construction cost of traditional fixed foundations increases sharply, and its economic benefits decline, so it is necessary to develop floating foundations to support large offshore wind turbines.

In the related art, a single-column (Spar) type foundation is a type of floating fan foundation, which is simple in design and manufacture, and has constant stability. However, due to its structural characteristics, when combined with the offshore wind turbine, the overall length is long when it is erected at sea, and it is only suitable for deep waters above the level of 100 meters. After the single-column foundation is prefabricated on land, it cannot be floated vertically due to insufficient water depth in shallow waters. At present, the construction methods of barge transportation or horizontal floating are mostly used for transportation.

Using the method in the related art, since large-scale barges are used to transport the assembled floating wind turbines as a whole, the transportation cost will be greatly increased. . After being transported to the designated location, the floating crane and the offshore docking installation are carried out by means of cranes and other facilities. The overall construction period is long, the installation efficiency is low, and the operation is difficult.

SUMMARY OF THE INVENTION

The embodiments of the present invention provide a floating fan foundation transportation structure and a construction method thereof, which can effectively reduce the operation of docking and installing the floating fan foundation and the offshore fan at sea while realizing the overall transportation cost of the floating fan base and the offshore fan. difficulty and improve construction efficiency. The technical solution is as follows:

In a first aspect, an embodiment of the present invention provides a basic transportation structure for a floating wind turbine. The basic transportation structure for a floating wind turbine includes: a hull, a bracket assembly, a water column, an underwater column, and two bar-shaped connecting sections,

The hull has a mounting surface, one end of the hull has a mounting notch along the direction of the central axis of the hull, and slide rails are provided on the mounting surfaces at both ends of the mounting notch, and the sliding The rail is perpendicular to the central axis of the hull, and the two sliding rails are arranged symmetrically with respect to the installation recess;

The bracket assembly includes two vertical centralizing brackets, the two vertical centralizing brackets are respectively slidably installed on the two sliding rails, and the vertical centralizing brackets face the end face on the side of the installation recess. A semi-circular arc-shaped holding ring is arranged on the upper part, the water uprights are arranged in a vertical direction, and the two vertical righting supports are configured to be able to move toward each other along the sliding rails, so that the two vertical righting brackets can be moved toward each other. The holding rings on the bracket are combined to clamp and fix the water column in the installation recess;

One end of the water column has a connection port for connecting with the offshore fan, and the side wall of the water column has two radially arranged rotating shafts, and the two rotating shafts are arranged symmetrically with respect to the water column, so The middle parts of the two bar-shaped connecting sections are respectively rotatably connected to the two rotating shafts, and one end of the two bar-shaped connecting sections is fixedly connected to the underwater upright column, and the underwater upright column is connected to the two shafts. Each of the bar-shaped connecting sections is parallel, and the underwater column is provided with a ballast tank.

Optionally, the other end of the bar-shaped connecting section has a first bolt hole, the side wall of the water column has a second bolt hole matching the first bolt hole, and the second bolt hole is located in the between the rotating shaft and the connecting port.

Optionally, the side wall of the water column has a radially protruding assembly flange, the assembly flange is located between the second bolt hole and the connection port, and the water column is configured When the clamping rings on the two vertical centralizing brackets are clamped and fixed in the installation recesses, the end face of the assembling flange facing the side of the rotating shaft abuts the clamping rings .

Optionally, the vertical centralizing support is provided with a plurality of the holding rings, and the plurality of the holding rings are arranged at intervals along the extending direction of the vertical centralizing support, and the water column has a plurality of the holding rings. The holding rings correspond to a plurality of the assembling flanges one by one.

Optionally, one end of the vertical centralizing bracket slidably connected to the sliding rail has a fixing ear, the fixing ear has a third bolt hole, and the mounting surface on the side of the sliding rail has a plurality of bolt holes corresponding to the sliding rail. The fourth bolt holes are matched with the third bolt holes, and a plurality of the fourth bolt holes are evenly spaced along the length direction of the slide rail.

Optionally, an elastic gasket is provided on the inner ring end face of the holding ring.

Optionally, the other end of the hull has two water guiding surfaces, the water guiding surfaces are arranged at an acute angle with the numerical plane where the central axis of the hull is located, and the two water guiding surfaces are symmetrical with respect to the central axis of the hull. layout.

Optionally, the vertical centralizer is a multi-layer truss structure.

Optionally, the clasping ring and the vertical centralizer are connected by welding.

In a second aspect, an embodiment of the present invention provides a construction method for constructing the floating fan base transport structure described in the first aspect, the construction method comprising:

Connect the above-water column and the underwater column by using the two bar-shaped connecting sections;

Utilize the holding rings on the two vertical centralizing brackets to fit together to clamp and fix the above-water column in the installation recess in the vertical direction, and make the underwater column naturally suspend on the water surface The horizontal floating state is carried out by towing the hull to carry out the water transportation of the above-water column and the underwater column;

After the hull reaches the designated position, adjust the weight of the ballast tank to sink the other end of the underwater column and drive the two bar-shaped connecting sections to rotate around the rotating shaft until the underwater The column is in a vertical floating state that is coaxial with the water column as a whole;

One end of the underwater column is fixedly connected to the other end of the above-water column, the draught of the above-water column and the underwater column is adjusted, and the seabed is anchored and the mooring line is tensioned;

The relative positions of the two vertical righting brackets are adjusted along the sliding rail, and the clamping and fixing of the water column by the holding ring is released.

The beneficial effects brought by the technical solutions provided by the embodiments of the present invention include at least:

By setting the foundation of the floating fan into a separate water column and an underwater column, and using a connection structure composed of two bar-shaped connecting sections and a rotating shaft for rotational connection. The hull used for hauling only needs to be clamped and fixed on the water column that needs to be set on the water through the bracket assembly, and the underwater column can be kept floating on the water surface to follow the floating, the overall transportation of the floating fan foundation can be realized, and the large barges can be reduced. usage of. After the hauling is in place, by adjusting the weight of the ballast tank on the underwater column, the underwater column can sink under the guidance of the two bar-shaped connecting sections and rotate to a position coaxial with the water column. After the underwater column is rotated in place, the two bar-shaped connecting sections can continue to constrain the relative position between the underwater column and the water column, which is convenient for the staff to directly connect the water column and the underwater column. The connection between the water column and the offshore wind turbine can be completed on the shore, and there is no need for floating cranes and other water hoisting construction through cranes and other facilities, which effectively reduces the difficulty of docking and installation of the floating wind turbine foundation and the offshore wind turbine and improves the construction efficiency.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

1 is a schematic structural diagram of a basic transport structure of a floating fan provided in an embodiment of the present invention in a floating state;

2 is a schematic side view of the basic transport structure for a wind turbine provided in an embodiment of the present invention in a floating state;

3 is a schematic diagram of a partial structure of a stent assembly provided by an embodiment of the present invention;

Fig. 4 is the top-view structure schematic diagram of the clasping ring provided by the embodiment of the present invention;

5 is a schematic structural diagram of a water column provided by an embodiment of the present invention;

6 is a schematic cross-sectional structural diagram of an underwater column provided by an embodiment of the present invention;

7 is a schematic structural diagram of a basic transportation structure for a floating fan provided in an embodiment of the present invention in an assembled state;

8 is a schematic top-view structural diagram of another floating fan base transport structure provided in an embodiment of the present invention in a floating state;

9 is a schematic diagram of the posture structure of a floating fan base assembly provided by an embodiment of the present invention;

FIG. 10 is a flowchart of a construction method provided by an embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

In the related art, a single-column (Spar) type foundation is a type of floating fan foundation, which is simple in design and manufacture, and has constant stability. However, due to its structural characteristics, when combined with the offshore wind turbine, the overall length is long when it is erected at sea, and it is only suitable for deep waters above the level of 100 meters. After the single-column foundation is prefabricated on land, it cannot be floated vertically due to insufficient water depth in shallow waters. At present, the construction methods of barge transportation or horizontal floating are mostly used for transportation.

Using the method in the related art, since large-scale barges are used to transport the assembled floating wind turbines as a whole, the transportation cost will be greatly increased. . After being transported to the designated location, the floating crane and the offshore docking installation are carried out by means of cranes and other facilities. The overall construction period is long, the installation efficiency is low, and the operation is difficult.

FIG. 1 is a schematic structural diagram of a basic transportation structure of a floating fan provided in an embodiment of the present invention in a floating state. FIG. 2 is a schematic side view of the basic transportation structure of a type of wind turbine provided in an embodiment of the present invention in a floating state. FIG. 3 is a partial structural schematic diagram of a stent assembly provided by an embodiment of the present invention. FIG. 4 is a schematic top-view structural diagram of a holding ring provided by an embodiment of the present invention. FIG. 5 is a schematic structural diagram of a water column provided by an embodiment of the present invention. 6 is a schematic cross-sectional structural diagram of an underwater column provided by an embodiment of the present invention. FIG. 7 is a schematic structural diagram of a basic transportation structure of a floating fan provided in an embodiment of the present invention in an assembled state. FIG. 8 is a schematic top-view structural diagram of another basic transportation structure of a floating wind turbine provided in an embodiment of the present invention in a floating state. FIG. 9 is a schematic diagram of the attitude structure of a floating fan base assembled according to an embodiment of the present invention. As shown in FIGS. 1 to 9 , through practice, the applicant has provided a basic transportation structure for a floating wind turbine, including a hull 1 , a bracket assembly 2 , a water column 3 , an underwater column 4 and two bar-shaped connecting sections 5 .

The hull 1 has an installation surface 1a, one end of the hull 1 has an installation recess 11 arranged along the direction of the central axis of the hull 1, and the installation surfaces 1a located at both ends of the installation recess 11 are provided with slide rails 12. The slide rails 12 Perpendicular to the central axis of the hull 1 , the two sliding rails 12 are arranged symmetrically with respect to the mounting recess 11 .

The bracket assembly 2 includes two vertical centralizing brackets 21 . The two vertical centralizing brackets 21 are respectively slidably mounted on the two slide rails 12 , and a semi-circular arc-shaped holding ring 211 is provided on the end surface of the vertical centralizing bracket 21 facing the installation recess 11 . The water column 3 is arranged in the vertical direction, and the two vertical centralizing brackets 21 are configured to be able to move toward each other along the slide rails 12, so that the clamping rings 211 on the two vertical centralizing brackets 21 are combined to clamp the water column 3. Fixed in the mounting recess 11 .

One end of the water column 3 is provided with a connection port 31 for connecting with the offshore wind turbine. The side wall of the water column 3 has two radially arranged rotating shafts 32 , and the two rotating shafts 32 are symmetrically arranged relative to the water column 3 . The middle parts of the two bar-shaped connecting sections 5 are respectively rotatably connected to the two rotating shafts 32 , and one end of the two bar-shaped connecting sections 5 is fixedly connected to the underwater column 4 . The underwater column 4 is parallel to the two bar-shaped connecting sections 5 , and the underwater column 4 has a ballast tank 41 inside.

In the embodiment of the present invention, the water column 3 and the underwater column 4 which are arranged separately constitute the floating fan foundation for connecting the offshore wind turbine. Before the floating, the underwater column 4 can float freely on the water surface, and The water column 3 can be hoisted into the installation recess 11 of the hull 1 by the hoisting device on the shore, and hoisted between the two vertical centralizers 21 in the vertical direction. After the position adjustment of the water column 3 is completed, the two vertical righting brackets 21 can be driven to move toward each other along the slide rail 12, and the water column 3 can be butted and clamped by the holding rings 211 on the two vertical righting brackets 21. The water column 3 is clamped and fixed above the water surface in the installation recess 11 . The upper fan structures such as the fan tower, the nose and the blades of the offshore fan can be connected and installed on the connection port 31 located at the top of the water column 3 . Afterwards, the other end of the hull 1 can be towed by a conventional tugboat to move on the water, and the underwater column 4 will move simultaneously with the water column 3 and the hull 1 in a horizontal floating cloud state under the connection of the two bar-shaped connecting sections 5 . After the hull 1 is towed to the designated location where the floating fan is installed, the weight of the ballast tank 41 is adjusted to make the other end of the underwater column 4 sink underwater from the floating state, while one end of the underwater column 4 passes through the two Each bar-shaped connecting section 5 is rotatably connected to the above-water column 3, and the underwater column 4 rotates relative to the above-water column 3 as a whole around the rotating shaft 32 when it sinks. The underwater column 4 will be coaxial with the water column 3 that is also set in a vertical state after sinking to a vertical floating state. At this time, flanges, etc. The connecting parts can complete the coaxial fixed connection of the above-water column 3 and the underwater column 4, and complete the above-water assembly and setting of the floating fan foundation. After adjusting the overall draft depth of the above-water column 3 and the underwater column 4, install the anchoring foundation with the underwater seabed and tension the mooring line, and then the installation of the floating fan foundation can be completed. Finally, the support, clamping and fixing of the water column 3 by the two vertical centralizing brackets 21 are released, and then the floating installation work of the next group of floating fan foundations can be cyclically performed.

By adopting the basic transportation structure of the floating fan provided by the embodiment of the present invention, the floating fan foundation is set as a separate water column 3 and an underwater column 4, and the connection formed by the two bar-shaped connecting sections 5 and the rotating shaft 32 is used. The structure is connected in rotation. The hull 1 for hauling only needs to be clamped and fixed by the bracket assembly 2 to fix the water column 3 that needs to be set on the water, and let the underwater column 4 keep floating on the water surface to follow the floating, so that the overall transportation of the floating fan foundation can be realized. , reducing the use of large barges. After the hauling in place, by adjusting the weight of the ballast tank 41 on the underwater column 4, the underwater column 4 can sink under the guidance of the two bar-shaped connecting sections 5 and rotate to be coaxial with the water column 3 s position. After the underwater column 4 is rotated in place, the two bar-shaped connecting sections 5 can continue to play a role in constraining the relative position between the underwater column 4 and the water column 3, so that the staff can directly control the water column 3 and the underwater column. 4. Connecting on the water, and the connection between the water column 3 and the offshore wind turbine can be completed on the shore, without the need for floating cranes and other water hoisting construction through crane boats and other facilities, effectively reducing the work of docking and installing the floating wind turbine foundation and the offshore wind turbine at sea. difficulty and improve construction efficiency.

Exemplarily, in the embodiment of the present invention, the length of the water column 3 is 30 meters, the length of the underwater column 4 is 50 meters, the diameters of the water column 3 and the underwater column 4 are both 8.5 meters, and the design draft after the overall connection is Depths greater than 100 meters. Correspondingly, in order to ensure the bearing of the water column 3 and the underwater column 4, the height of the hull 1 is 5 to 6 meters, the empty ship draft is 0.5 to 1 meter, and the design draft is 2.5 to 3 meters. In the extending direction of the rail 12 , the overall width of the hull 1 is 5 to 6 times the diameter of the water column 3 and the underwater column 4 .

Optionally, the other end of the bar-shaped connecting section 5 has a first bolt hole 51 , the side wall of the water column 3 has a second bolt hole 33 matching the first bolt hole 51 , and the second bolt hole 33 is located on the rotating shaft 32 . and the connection port 31. Exemplarily, in the embodiment of the present invention, by adjusting the weight of the ballast tank 41 on the underwater column 4, the underwater column 4 is made to sink under the guidance of the two bar-shaped connecting sections 5 and rotate to the same position as the water column. 3 After the coaxial position, the first bolt hole 51 at the other end of the bar-shaped connecting section 5 can be aligned with the second bolt hole 33 on the side of the water column 3. At this time, the construction personnel can use bolts to connect the two bars. The other end of the connecting section 5 is fixedly connected with the water column 3 . At this time, after the bar-shaped connecting section 5 is fixedly connected with the water column 3 at two points, there will be no relative rotation, which can further strengthen the restraint effect on the underwater column 4 and prevent the underwater column from being caused by factors such as waves and sea wind during offshore construction. There is shaking between 4 and the water column 3, which is convenient for the staff to carry out the docking construction, further reduces the operation difficulty of the offshore docking and installation of the floating fan foundation, and improves the construction efficiency.

Optionally, the side wall of the water column 3 has a radially protruding assembly flange 34, the assembly flange 34 is located between the second bolt hole 33 and the connection port 31, and the water column 3 is configured to pass through the two When the holding rings 211 on the vertical centralizing brackets 21 are clamped and fixed in the installation recesses 11 , the end face of the mounting flange 34 facing the side of the rotating shaft 32 abuts against the holding rings 211 . Exemplarily, in the embodiment of the present invention, by arranging the mounting flange 34 protrudingly on the side wall of the water column 3, when the clamping rings 211 on both sides are abutted and clamped to the water column 3, the two The upper end surface of the ring 211 will simultaneously abut with the end surface of the mounting flange 34 facing the side of the rotating shaft 32 , that is, the lower end surface. While realizing the clamping and fixing in the horizontal direction, the holding ring 211 can also support the water column 3 in the vertical direction and provide a vertical support force. This prevents the water column 3 from shaking relative to the holding ring 211 in the radial direction due to the shaking of the hull 1 caused by the harsh environment at sea. The assembly stability of the basic transportation structure of the floating wind turbine during transportation is further improved.

Optionally, the vertical centralizing support 21 is provided with a plurality of holding rings 211, and the plurality of holding rings 211 are arranged at intervals along the extending direction of the vertical centralizing support 21, and the water column 3 has a one-to-one correspondence with the plurality of holding rings 211. The plurality of mounting flanges 34 . Exemplarily, in the embodiment of the present invention, each vertical centralizer 21 is provided with two holding rings 211 at intervals. The two sides of 3 are clamped and fixed at multiple points to improve the clamping tightness and further improve the assembly stability of the basic transportation structure of the floating fan during transportation.

Optionally, one end of the vertical centralizing bracket 21 slidably connected to the slide rail 12 has a fixing ear 212, the fixing ear 212 has a third bolt hole 2121, and the mounting surface 1a on the side of the slide rail 12 has a plurality of third bolt holes 2121. The bolt holes 2121 are matched with the fourth bolt holes 13 , and the plurality of fourth bolt holes 13 are evenly spaced along the length direction of the slide rail 12 . Exemplarily, referring to FIG. 8 , in a possible embodiment of the present invention, after the vertical centralizing bracket 21 is adjusted in place along the length direction of the slide rail 12 to realize the clamping and fixing of the water column 3 , the water column 3 can be clamped and fixed. The third bolt holes 2121 on the ears 212 correspond to the fourth bolt holes 13 on the hull 1 and are fixedly connected by bolts or bolts to limit the sliding of the vertical centralizer 21 . The structure is simple, the fixed installation is convenient, and the assembly stability of the basic transportation structure of the floating fan during transportation is further improved.

Optionally, an elastic washer 2111 is provided on the end surface of the inner ring of the holding ring 211 . Exemplarily, in the embodiment of the present invention, an elastic gasket 2111 , such as a rubber gasket, is provided on the end face of the inner ring of the holding ring 211 for contacting with the water column 3 . The static friction force between the holding ring 211 and the outer surface of the water column 3 can be improved when clamping and fixing the water column 3, thereby increasing the clamping tightness. At the same time, the direct contact of the rigid structure is reduced, the scratches are reduced, and the service life is improved.

Optionally, the other end of the hull 1 has two water guide surfaces 1b, the water guide surfaces 1b are arranged at an acute angle with the numerical plane where the central axis of the hull 1 is located, and the two water guide surfaces 1b are arranged symmetrically with respect to the central axis of the hull 1 . Exemplarily, in the embodiment of the present invention, by symmetrically arranging two inclined water guide surfaces 1b along the central axis on the other end of the hull 1, that is, the water-facing end surface of the hull 1 when being towed, the water-facing surface is The whole is an isosceles trapezoid structure. The resistance that the hull 1 is subjected to in the process of being towed can be effectively reduced, the towing speed can be improved, and the overall construction efficiency can be further improved.

Optionally, the vertical centralizer 21 is a multi-layer truss structure. Exemplarily, in the embodiment of the present invention, by using a latticed multi-layer beam structure as the vertical centralizing bracket 21, on the basis of ensuring the height, span and mechanical strength of the vertical centralizing bracket 21, the steel material is effectively reduced. The dosage is light, and the overall weight is light, which is convenient for mobile adjustment.

Optionally, the holding ring 211 and the vertical centralizer 21 are connected by welding. Exemplarily, in the embodiment of the present invention, the holding ring 211 is a semi-circular steel structure, and is fixedly connected to the vertical centralizing support 21 through a steel structure or a connecting arm by means of welding connection. It can be cut and disassembled, and re-welded according to the water column 3 of different diameters, so as to be suitable for floating fan foundations of different sizes. The structure is simple, the connection is tight and the process is simple.

FIG. 10 is a flowchart of a construction method provided by an embodiment of the present invention. As shown in FIG. 10 , an embodiment of the present invention also provides a construction method for assembling and constructing the basic transportation structure of the floating fan as shown in FIG. 1 to FIG. 9 , and the construction method includes the following steps:

S1 , using two bar-shaped connecting sections 5 to connect the above-water column 3 and the underwater column 4 .

S2, using the holding rings 211 on the two vertical righting brackets 21 to align to clamp and fix the water column 3 in the installation recess 11 in the vertical direction, and make the underwater column 4 naturally suspended on the water surface. In the floating state, the water column 3 and the underwater column 4 are transported by towing the hull 1 on the water.

Exemplarily, in this step, before floating, the underwater column 4 can float freely on the water surface, and the water column 3 can be lifted into the installation recess 11 of the hull 1 by the lifting device on the shore. , and hoisted along the vertical direction between the two vertical righting supports 21 . After the position adjustment of the water column 3 is completed, the two vertical righting brackets 21 can be driven to move toward each other along the slide rail 12, and the water column 3 can be butted and clamped by the holding rings 211 on the two vertical righting brackets 21. The water column 3 is clamped and fixed above the water surface in the installation recess 11 . Afterwards, the other end of the hull 1 can be towed by a conventional tugboat to move on the water, and the underwater column 4 will move simultaneously with the water column 3 and the hull 1 in a horizontal floating cloud state under the connection of the two bar-shaped connecting sections 5 .

S3, after the hull 1 reaches the designated position, adjust the weight of the ballast tank 41 so that the other end of the underwater column 4 sinks and drives the two bar-shaped connecting sections 5 to rotate around the rotating shaft 32 until the underwater column 4 is integral with the The vertical floating state in which the water column 3 is coaxial.

Exemplarily, in this step, after the hull 1 is towed to the designated location where the floating fan is installed, the other end of the underwater column 4 is made to sink underwater from a floating state by adjusting the weight of the ballast tank 41, One end of the underwater column 4 is rotatably connected to the above-water column 3 through two bar-shaped connecting sections 5 . The underwater column 4 will be coaxial with the above-water column 3 which is also arranged in a vertical state after sinking to a floating state as a whole.

S4, one end of the underwater column 4 is fixedly connected to the other end of the above-water column 3, the drafts of the above-water column 3 and the underwater column 4 are adjusted, anchored with the seabed and tensioned the mooring line.

Exemplarily, in this step, by adding connecting components such as flanges at the ends of the above-water column 3 and the underwater column 4, the coaxial fixed connection of the above-water column 3 and the underwater column 4 can be completed, and the floating fan can be completed. Basic aquatic assembly setup. After adjusting the overall draft depth of the above-water column 3 and the underwater column 4, install the anchoring foundation n with the underwater seabed m and tension the mooring line o, and then the installation of the floating fan foundation can be completed.

S5 , adjust the relative positions of the two vertical righting brackets 21 along the slide rail 12 , and release the clamping and fixing of the water column 3 by the holding ring 211 .

Exemplarily, in this step, by adjusting the two vertical centralizing brackets 21 in the opposite direction on the slide rail 12 to release the support, clamping and fixing of the two vertical centralizing brackets 21 to the water column 3, the downward movement can be carried out cyclically. Floating installation work for a set of floating wind turbine foundations.

By adopting the construction method provided by the embodiment of the present invention, the floating fan foundation is set as a separate water column 3 and an underwater column 4, and the connection structure composed of two bar-shaped connecting sections 5 and the rotating shaft 32 is used for rotational connection . The hull 1 for hauling only needs to be clamped and fixed by the bracket assembly 2 to fix the water column 3 that needs to be set on the water, and let the underwater column 4 keep floating on the water surface to follow the floating, so that the overall transportation of the floating fan foundation can be realized. , reducing the use of large barges. After the hauling in place, by adjusting the weight of the ballast tank 41 on the underwater column 4, the underwater column 4 can sink under the guidance of the two bar-shaped connecting sections 5 and rotate to be coaxial with the water column 3 s position. After the underwater column 4 is rotated in place, the two bar-shaped connecting sections 5 can continue to play a role in constraining the relative position between the underwater column 4 and the water column 3, so that the staff can directly control the water column 3 and the underwater column. 4. Connecting on the water, and the connection between the water column 3 and the offshore wind turbine can be completed on the shore, without the need for floating cranes and other water hoisting construction through crane boats and other facilities, effectively reducing the work of docking and installing the floating wind turbine foundation and the offshore wind turbine at sea. difficulty and improve construction efficiency.

Unless otherwise defined, technical or scientific terms used herein should have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first", "second" and similar terms used in the description of the patent application and the claims of the present invention do not denote any order, quantity or importance, but are only used to distinguish different components. Likewise, "a" or "an" and the like do not denote a quantitative limitation, but rather denote the presence of at least one. Words like "including" or "comprising" mean that the elements or items appearing before "including" or "including" cover the elements or items listed after "including" or "including" to the full extent of equivalents, and do not exclude other elements or object. Words like "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "Down", "Left", "Right", etc. are only used to indicate the relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

The above descriptions are only optional embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (10)

1. A basic transport structure for a floating fan, characterized in that it comprises: a hull (1), a bracket assembly (2), a water column (3), an underwater column (4) and two bar-shaped connecting sections (5) , The hull (1) is provided with a mounting surface (1a), and one end of the hull (1) is provided with a mounting notch (11) arranged along the direction of the central axis of the hull (1), located in the mounting notch ( 11) Slide rails (12) are provided on the mounting surfaces (1a) at both ends, the slide rails (12) are perpendicular to the central axis of the hull (1), and the two slide rails (12) are opposite to each other symmetrically arranged in the installation recess (11); The bracket assembly (2) includes two vertical centralizing brackets (21), the two vertical centralizing brackets (21) are respectively slidably mounted on the two sliding rails (12), and the vertical centralizing brackets (21) are respectively slidably mounted on the two sliding rails (12). The end surface of the centralizing bracket (21) facing the side of the installation recess (11) is provided with a holding ring (211) in the shape of a semi-circular arc, the water uprights (3) are arranged in the vertical direction, and the two vertical The vertical centralizing brackets (21) are configured to be able to move toward each other along the sliding rails (12), so that the pair of the holding rings (211) on the two vertical centralizing brackets (21) are combined to move the water The upright column (3) is clamped and fixed in the installation recess (11); One end of the above-water column (3) is provided with a connection port (31) for connecting with the offshore fan, and the side wall of the above-water column (3) is provided with two rotating shafts (32) arranged in the radial direction. The rotating shaft (32) is symmetrically arranged with respect to the water column (3), and the middle parts of the two bar-shaped connecting sections (5) are respectively rotatably connected to the two rotating shafts (32), and the two One end of the bar-shaped connecting section (5) is fixedly connected to the underwater column (4), the underwater column (4) is parallel to the two bar-shaped connecting sections (5), and the underwater column (4) is parallel to the two bar-shaped connecting sections (5). ) has a ballast tank (41) inside. 2. The basic transportation structure for a floating fan according to claim 1, wherein the other end of the bar-shaped connecting section (5) has a first bolt hole (51), and the side of the water column (3) is provided with a first bolt hole (51). The wall has a second bolt hole (33) matching the first bolt hole (51), the second bolt hole (33) is located between the rotating shaft (32) and the connection port (31) . 3. The basic transportation structure for a floating fan according to claim 2, characterized in that the side wall of the water upright column (3) has a radially protruding assembly flange (34), and the assembly convex The edge (34) is located between the second bolt hole (33) and the connection port (31), and the water column (3) is configured to pass through the two vertical centralizing brackets (21). When the clamping ring (211) is clamped and fixed in the installation recess (11), the end face of the assembling flange (34) facing the side of the rotating shaft (32) and the clamping ring (211) ) are in contact with each other. 4 . The basic transportation structure for a floating wind turbine according to claim 3 , wherein the vertical centralizing support ( 21 ) is provided with a plurality of the holding rings ( 211 ), and a plurality of the holding rings ( 4 . 211) The vertical centralizers (21) are arranged at intervals along the extending direction, and the water uprights (3) are provided with a plurality of the assembling flanges (34) corresponding to the plurality of the holding rings (211) one-to-one ). 5. The basic transportation structure for a floating fan according to claim 1, characterized in that, one end of the vertical centralizing bracket (21) slidably connected to the sliding rail (12) has a fixing ear (212), and the fixing ear There are third bolt holes (2121) on (212), and a plurality of fourth bolt holes (2121) matching the third bolt holes (2121) are formed on the mounting surface (1a) on the side of the slide rail (12). Bolt holes (13), a plurality of the fourth bolt holes (13) are evenly spaced along the length direction of the slide rail (12). 6 . The basic transportation structure for a floating fan according to claim 1 , wherein an elastic gasket ( 2111 ) is provided on the end surface of the inner ring of the holding ring ( 211 ). 7 . 7. The basic transportation structure for a floating wind turbine according to any one of claims 1 to 6, wherein the other end of the hull (1) has two water guide surfaces (1b), and the water guide surfaces (1b) The two water guiding surfaces (1b) are arranged symmetrically with respect to the central axis of the hull (1) and are arranged at an acute angle to the numerical plane on which the central axis of the hull (1). 8. The basic transportation structure for a floating wind turbine according to any one of claims 1 to 6, wherein the vertical centralizing support (21) is a multi-layer truss structure. 9 . The basic transportation structure for a floating wind turbine according to claim 8 , wherein the holding ring ( 211 ) and the vertical centralizing support ( 21 ) are connected by welding. 10 . 10. A construction method, characterized in that, the construction method is realized based on the floating fan base transportation structure according to any one of claims 1 to 9, and the construction method comprises: The above-water column (3) and the underwater column (4) are connected by the two bar-shaped connecting sections (5); The holding rings (211) on the two vertical centralizing brackets (21) are combined to clamp and fix the water column (3) in the installation recess (11) in the vertical direction. , and make the underwater column (4) be in a horizontal floating state that is naturally suspended on the water surface, and carry out the water transportation of the above-water column (3) and the underwater column (4) by towing the hull (1); After the hull (1) reaches the designated position, adjust the weight of the ballast tank (41) so that the other end of the underwater column (4) sinks and drives the two bar-shaped connecting sections (5). ) rotate around the shaft (32) until the underwater column (4) is in a vertical floating state in which the whole is coaxial with the above-water column (3); One end of the underwater column (4) is fixedly connected to the other end of the above-water column (3), and the draught of the above-water column (3) and the underwater column (4) is adjusted to be consistent with the seabed. Anchoring and tensioning of mooring lines; The relative positions of the two vertical centralizing brackets (21) are adjusted along the sliding rail (12), and the clamping and fixing of the water column (3) by the holding ring (211) is released.

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