Working ship

Abstract

The invention belongs to the technical field of offshore wind power generation, and particularly discloses a working ship which is used for launching a stand column type floating fan foundation, a ship body of the working ship comprises a first water ballast space, the first water ballast space bears at least three stand columns, and a connecting beam of the stand column type floating fan foundation is at least partially located on the outer side of the ship body in the overlook direction. Compared with the prior art in which the water ballast tanks are directly arranged in a rectangular shape, when the ship body in the form bears the stand column type floating fan foundation with the same size, the size of the whole ship body is reduced, the ship body further comprises the second water ballast tanks, and the second water ballast tanks are selectively installed at different positions of the first water ballast tanks, so that the ship body is convenient to carry. The buoyancy center position of the ship body is adjusted so as to meet the launching requirements of the stand column type floating fan foundations of different sizes, and the launching operation of the stand column type floating fan foundations of different sizes can be completed through one work ship.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind power generation, and in particular to a working boat for launching a column-type floating wind turbine foundation. Background Art

[0002] As an important renewable energy technology, offshore wind power generation has developed rapidly around the world. Compared with onshore wind power generation, offshore wind speed is large and stable. With the development of wind resources, there has been a trend from near shallow sea to deep sea, and floating wind turbine foundations have become key equipment for deep-sea wind energy development. At present, the common structure of floating wind turbine foundations is mainly column-type floating wind turbine foundations. Column-type floating wind turbine foundations are generally installed and manufactured on the shore. After the production is completed, they are placed on the workboat, and then the workboat carries the column-type floating wind turbine foundation for launching. After the column-type floating wind turbine foundation is launched, it is transported to the installation location by other transport ships.

[0003] like Figure 1 and Figure 2 As shown, the work boat in the prior art includes a hull 1', and the hull 1' includes a plurality of ballast water tanks 11', and the plurality of ballast water tanks 11' are arranged along a matrix, so that the hull 1' is rectangular as a whole, and a column-type floating wind turbine foundation 2' is loaded on the hull 1', and the column-type floating wind turbine foundation 2' includes a plurality of columns 21' and a connecting beam 22' connecting adjacent columns. However, the overall size of the hull 1', which is rectangular as a whole, is much larger than the overall size of the column-type floating wind turbine foundation 2', thereby making the manufacturing cost of the hull 1' relatively high; secondly, the size of the hull 1' is fixed, so the buoyancy center position is fixed, and when it is used for column-type floating wind turbine foundations 2' of different sizes and different centers of gravity, instability and other phenomena will occur, making the hull 1' poorly compatible and very inconvenient to use. Summary of the invention

[0004] Based on the above, the object of the present invention is to provide a workboat with a relatively small overall size that can meet the launching requirements of column-type floating wind turbine foundations of different sizes, while taking both cost and function into consideration.

[0005] To achieve the above object, the present invention adopts the following technical solutions:

[0006] A work boat is used for launching a column-type floating wind turbine foundation, wherein the column-type floating wind turbine foundation comprises a connecting beam and three or more columns, wherein the connecting beam is arranged and fixedly connected between every two adjacent columns, and the work boat comprises:

[0007] A hull, wherein the hull is capable of carrying the column-type floating wind turbine foundation, the hull comprises a first ballast water tank, the first ballast water tank is used to carry at least three columns, and the connecting beam is at least partially located on the outside of the hull in a top view direction;

[0008] The hull further includes a second ballast water tank, which is selectively connected to the first ballast water tank to adjust the buoyancy center of the hull.

[0009] Preferably, the first ballast water tank comprises a first ballast part and a second ballast part, and one end of the first ballast part is vertically arranged at the middle of the second ballast part.

[0010] Preferably, the second ballast water tanks are symmetrically arranged at an end of the first ballast part away from the second ballast part, and / or on both sides of the first ballast part, and / or at both ends of the second ballast part.

[0011] Preferably, the first ballast water tank comprises a bulkhead, and the bulkhead can divide the first ballast water tank into a plurality of sub-ballast water tanks.

[0012] Preferably, the first ballast water tank comprises a plurality of sub-ballast water tanks, and the plurality of sub-ballast water tanks are spliced ​​to form the first ballast water tank.

[0013] Preferably, the multiple sub-ballast water tanks are arranged in communication, or the multiple sub-ballast water tanks are arranged relatively independently.

[0014] Preferably, top ends of the plurality of sub-ballast water tanks are flush.

[0015] Preferably, a support member is further provided on the hull, and the support member is provided on the first ballast water tank for supporting the column.

[0016] Preferably, a third ballast water tank is provided on a side of the second ballast water tank away from the first ballast water tank, and the second ballast water tank is connected to the third ballast water tank by welding or ropes.

[0017] Preferably, a water pump is provided on the sub-ballast water tank.

[0018] The beneficial effects of the present invention are:

[0019] The present invention provides a work boat for launching a column-type floating wind turbine foundation. The hull of the work boat includes a first ballast water tank, which carries at least three columns. In the top view, the connecting beam of the column-type floating wind turbine foundation is at least partially located on the outside of the hull. When carrying a column-type floating wind turbine foundation of a certain size, this type of hull greatly reduces the number of first ballast water tanks, reduces the size of the entire hull, and greatly reduces the production cost, compared with the prior art in which the ballast water tanks are directly arranged in a rectangular shape. Secondly, The hull also includes a second ballast water tank, which is selectively connected to the first ballast water tank. The staff can adjust the buoyancy center of the hull by removing or installing the second ballast water tank at different positions of the first ballast water tank. The buoyancy center of the hull can be adjusted according to the center of gravity of the column-type floating wind turbine foundation to make the two as close as possible to meet the launching requirements of column-type floating wind turbine foundations of different sizes, so that one workboat can complete the launching operation of column-type floating wind turbine foundations of different sizes, thereby improving the compatibility of the workboat. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0021] Figure 1 It is the main view of the work boat provided by the prior art;

[0022] Figure 2 It is a top view of a work boat provided by the prior art;

[0023] Figure 3 is a top view of a work boat provided by an embodiment of the present invention;

[0024] Figure 4 yes Figure 3 The hull structure diagram of the working boat;

[0025] Figure 5 is a top view of a work boat provided by another embodiment of the present invention;

[0026] Figure 6 yes Figure 5 The hull structure diagram of the work boat.

[0027] Figure 1 and Figure 2 middle:

[0028] 1', hull; 11', ballast tank;

[0029] 2', column type floating wind turbine foundation; 21', column; 22', connecting beam.

[0030] Figure 3-Figure 6 middle,

[0031] 1. Hull; 11. First ballast water tank; 111. First ballast part; 112. Second ballast part; 12. Second ballast water tank; 13. Bulkhead;

[0032] 2. Column type floating wind turbine foundation; 21. Column; 22. Connecting beam;

[0033] 3. Support parts. DETAILED DESCRIPTION

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0035] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions.

[0036] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0039] like Figure 3 and Figure 4 As shown, this embodiment provides a work boat for launching a column-type floating wind turbine foundation 2. The column-type floating wind turbine foundation 2 includes a connecting beam 22 and more than three columns 21. The connecting beam 22 is arranged and fixedly connected between every two adjacent columns 21. In this example, the column-type floating wind turbine foundation 2 is specifically provided with three connecting beams 22 and three columns 21. The entire column-type floating wind turbine foundation 2 is triangular in a top view. The work boat includes a hull 1, and the hull 1 carries the column-type floating wind turbine foundation 2. The connecting beam 22 can be located on the lower side of the column 21, that is, on the side close to the work boat, so as to improve the stability of the column-type floating wind turbine foundation 2. Furthermore, the hull 1 includes a first ballast water tank 11, which is used to carry columns 21, and the connecting beams 22 between the columns 21 are at least partially located on the outside of the hull 1 in the top view direction. When this type of hull 1 carries a column-type floating wind turbine foundation 2 of the same size, compared with the prior art in which the ballast water tanks are directly arranged in a rectangular shape, the size of the entire hull 1 is reduced, thereby greatly reducing the production cost.

[0040] The first ballast water tank 11 includes a first ballast part 111 and a second ballast part 112, and one end of the first ballast part 111 is vertically arranged in the middle of the second ballast part 112, that is, the first ballast water tank 11 is symmetrically arranged with the first ballast part 111 as the axis. The three columns 21 of the column-type floating wind turbine foundation 2, one of which is located on the first ballast part 111, and two of which are located on the second ballast part 112, that is, the three columns 21 are evenly distributed on the first ballast water tank 11, ensuring that the first ballast water tank 11 is evenly stressed, thereby ensuring the balance and stability of the hull 1.

[0041] Furthermore, the hull 1 further includes a second ballast water tank 12, which is selectively connected to the first ballast water tank. By removing or installing the second ballast water tank 12 at different positions of the first ballast water tank 11, the buoyancy center of the hull 1 is adjusted to further ensure the balance and stability of the hull 1. For example, in this embodiment, refer to Figure 3 When carrying a larger column-type floating wind turbine foundation 2, the second ballast water tank 12 is installed on the first ballast part 111 of the first ballast water tank 11, specifically, on both sides of the first ballast part 111 away from the end of the second ballast part 112. At this time, the hull 1 is in an "I" shape as a whole, and the buoyancy center of the hull 1 is close to the center of gravity of the column-type floating wind turbine foundation 2, ensuring that the workboat can stably carry the column-type floating wind turbine foundation 2, thereby ensuring that the column-type floating wind turbine foundation 2 can be safely and smoothly launched into the water.

[0042] In other embodiments, reference Figure 5 When carrying a smaller column-type floating wind turbine foundation 2, the second ballast water tank 12 is installed on the first ballast part 111, specifically on both sides of the non-end part of the first ballast part 111. At this time, the hull 1 is in an "earth" shape as a whole, and the buoyancy center of the hull 1 is close to the center of gravity of the column-type floating wind turbine foundation 2, ensuring that the workboat can stably carry the column-type floating wind turbine foundation 2, thereby ensuring that the column-type floating wind turbine foundation 2 can be safely and smoothly launched into the water. Of course, in other embodiments, when carrying other column-type floating wind turbine foundations 2, the above two embodiments can also be combined. For example, the second ballast water tank 12 is simultaneously installed on both sides of the end of the first ballast part 111 away from the second ballast part 112 and on both sides of the non-end part of the first ballast part 111. At this time, the hull 1 is in a "king" shape as a whole, and the buoyancy center of the hull 1 is close to the center of gravity of the column-type floating wind turbine foundation 2, ensuring that the workboat can stably carry the column-type floating wind turbine foundation 2, thereby ensuring that the column-type floating wind turbine foundation 2 can be safely and smoothly launched into the water.

[0043] It is understandable that when carrying column-type floating wind turbine foundations 2 of different sizes, the second ballast water tank 12 can be disassembled or installed at different positions of the first ballast water tank 11 to adjust the buoyancy center of the hull 1 so that the buoyancy center of the hull 1 is close to the center of gravity of the column-type floating wind turbine foundation 2, thereby ensuring the launching stability of the hull 1 and meeting the launching requirements of column-type floating wind turbine foundations 2 of different sizes, so that one workboat can complete the launching operation of column-type floating wind turbine foundations 2 of different sizes, thereby improving the compatibility of the workboat. In more other examples, the second ballast water tank 12 can also be installed at the end of the first ballast part 111 away from the second ballast part 112, and / or installed at both ends of the second ballast part 112. The second ballast water tank 12 can be increased, reduced or moved according to the requirements of different column-type floating wind turbine foundations 2, as long as the buoyancy center of the hull 1 can be close to the center of gravity of the column-type floating wind turbine foundation 2. It should be noted that the first ballast part 111 of the first ballast water tank 11 serves as the hull of the ship 1, the direction of the hull close to the second ballast part 112 is the stern direction, the direction of the hull away from the second ballast part 112 is the bow direction, and the width of the bow is smaller than the width of the stern, thereby improving the balance of the hull 1 when carrying the column-type floating wind turbine foundation 2. Furthermore, a third ballast water tank can be provided on the side of the second ballast water tank 12 away from the first ballast water tank 11 to help adjust the buoyancy center position of the hull 1, and the second ballast water tank 12 and the third ballast water tank are connected by welding or ropes.

[0044] The second ballast water tank 12 is selectively connected to the first ballast water tank 11. Specifically, the second ballast water tank 12 can be welded to the first ballast water tank 11 during connection, and the second ballast water tank 12 and the first ballast water tank 11 can be separated by laser cutting during disassembly, or, mooring piles can be respectively set on the top of the first ballast water tank 11 and the second ballast water tank 12, and then the first ballast water tank 11 and the second ballast water tank 12 can be connected and disassembled by tightening and loosening the mooring piles with ropes.

[0045] refer to Figure 4 and Figure 6 The first ballast water tank 11 further includes a bulkhead 13, which can separate the first ballast water tank 11 into a plurality of sub-ballast water tanks. Adjacent sub-ballast water tanks share a bulkhead 13, which is lighter in weight and can also increase the strength of the hull. In other embodiments, the first ballast water tank 11 can also be formed by splicing a plurality of sub-ballast water tanks. In addition, the plurality of sub-ballast water tanks can be arranged in a single row or in multiple rows.

[0046] The tops of the multiple ballast water tanks are flush, and the buoyancy of the hull 1 can be ensured by adjusting some of the sub-ballast water tanks. At the same time, the free liquid surface inertia moment of the hull 1 can also be reduced to ensure sufficient stability when loading the column-type floating wind turbine foundation 2.

[0047] It is understandable that a water pump is provided on the sub-ballast tank, and some sub-ballast tanks can adjust the buoyancy by pumping water into or out of the sub-ballast tanks, thereby adjusting the floating state of the hull 1 and realizing the floating or sinking operation of the hull 1. Specifically, the hull 1 is launched with the column-type floating wind turbine foundation 2. First, when the hull 1 enters the water, the sub-ballast tanks are filled with water into the sub-ballast tanks through the water pumps to achieve sinking. When the hull 1 sinks to the point where it is separated from the column-type floating wind turbine foundation 2, the column-type floating wind turbine foundation 2 is transported away by other transport ships, and then the sub-ballast tanks are discharged from the sub-ballast tanks through the water pumps to achieve floating. In addition, multiple sub-ballast tanks are connected and arranged, so that the water surface inside the sub-ballast tanks can be close to each other, thereby ensuring the stability of the first ballast tank 11, or the multiple sub-ballast tanks are arranged relatively independently, and the buoyancy of each sub-ballast tank can be adjusted individually, so as to adjust the floating state of the hull more quickly. In other embodiments, when the hull 1 enters the water, some sub-ballast water tanks may also sink by taking in water into themselves due to gravity, and then float by discharging the water inside themselves through an external compressed air system.

[0048] In order to facilitate the support of the column-type floating wind turbine foundation 2 on the hull 1, a support member 3 is also provided on the hull 1. The support member 3 can stably support the column-type floating wind turbine foundation 2 to ensure the load-bearing stability. Specifically, the support member 3 is arranged on the first ballast water tank 11, with a support column 21. It should be noted that when the column-type floating wind turbine foundation 2 is placed on the hull 1 on the shore, the support member 3 is first arranged on the hull 1 as a supporting foundation, and then the column-type floating wind turbine foundation 2 is lifted and sent to the support member 3 by the ship moving trolley, and then the ship moving trolley is separated from the column-type floating wind turbine foundation 2 and leaves the hull 1. Of course, in other embodiments, the support member 3 can also first carry the column-type floating wind turbine foundation 2, and then the support member 3 is lifted and sent to the hull 1 by the ship moving trolley, and then the ship moving trolley is separated from the support member 3 and leaves the hull 1.

[0049] The support member 3 may be a cart with wheels, in which case the support member 3 can not only support the column 21, but the column-type floating wind turbine foundation 2 can also be loaded onto a ship using the support member 3. In other embodiments, the support member 3 may only support the base.

[0050] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. A work boat for launching a column-type floating wind turbine foundation (2), wherein the column-type floating wind turbine foundation (2) comprises a connecting beam (22) and three or more columns (21), wherein the connecting beam (22) is arranged and fixedly connected between every two adjacent columns (21), and wherein: The workboat comprises: A hull (1), the hull (1) being capable of carrying the column-type floating wind turbine foundation (2), the hull (1) comprising a first ballast water tank (11), the first ballast water tank (11) being used to carry at least three columns (21), the connecting beam (22) being at least partially located outside the hull (1) in a top view direction; The hull (1) further comprises a second ballast water tank (12), wherein the second ballast water tank (12) is selectively connected to the first ballast water tank (11) to adjust the buoyancy center of the hull (1).

2. The work boat according to claim 1, characterized in that: The first ballast water tank (11) comprises a first ballast part (111) and a second ballast part (112), and one end of the first ballast part (111) is vertically arranged at the middle of the second ballast part (112).

3. The work boat according to claim 2, characterized in that: The second ballast water tanks (12) are symmetrically arranged at the end of the first ballast part (111) away from the second ballast part (112), and / or on both sides of the first ballast part (111), and / or at both ends of the second ballast part (112).

4. The work boat according to claim 1, characterized in that: The first ballast water tank (11) comprises a bulkhead (13), and the bulkhead (13) can divide the first ballast water tank (11) into a plurality of sub-ballast water tanks.

5. The work boat according to claim 1, characterized in that: The first ballast water tank (11) comprises a plurality of sub-ballast water tanks, and the plurality of sub-ballast water tanks are spliced ​​to form the first ballast water tank (11).

6. The work boat according to claim 4 or 5, characterized in that: The multiple sub-ballast water tanks are arranged in communication, or the multiple sub-ballast water tanks are arranged relatively independently.

7. The work boat according to claim 4 or 5, characterized in that: Top ends of the plurality of sub-ballast water tanks are flush.

8. The work boat according to claim 1, characterized in that: The hull (1) is also provided with a support member (3), which is arranged on the first ballast water tank (11) and is used to support the column (21).

9. The work boat according to claim 1, characterized in that: A third ballast water tank is arranged on a side of the second ballast water tank (12) away from the first ballast water tank (11), and the second ballast water tank (12) and the third ballast water tank are connected by welding or ropes.

10. The work boat according to claim 4 or 5, characterized in that: The sub-ballast water tank is provided with a water pump.

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