Offshore wind power floating type foundation, wind power assembly and preparation method

Abstract

The invention discloses an offshore wind power floating type foundation, a wind power assembly and a preparation method, and belongs to the field of offshore wind power. The offshore wind power floating type foundation comprises a first stand column, a second stand column and a third stand column which are arranged at intervals in a surrounding mode; the heaving disc is connected with one end of the first stand column; the buoy is connected between one end of the second upright post and one end of the third upright post; the deck pipe is connected between the other end of the first stand column and the other end of the second stand column; wherein the heaving disc and the buoy are the same in structure, each of the heaving disc and the buoy comprises a double-layer pipe and concrete filled in the double-layer pipe, the double-layer pipe of the heaving disc is connected with one end of the first stand column, and the double-layer pipe of the buoy is connected between one end of the second stand column and one end of the third stand column. The floating device has the technical effects that the structure is simple, and the floating stability is good.

Description

Technical Field

[0001] The present invention relates to offshore wind power, and in particular to an offshore wind power floating foundation, a wind power component and a preparation method thereof. Background Art

[0002] Offshore wind power is a power generation method that generates electricity through wind farms built at sea. It has the advantages of large single-unit capacity and less visual and noise pollution.

[0003] Floating foundations are an important component of offshore wind power, but related floating foundations are mainly designed with reference to ships, which can easily lead to complex structures. At the same time, the floating stability of related floating foundations is poor, which can easily lead to poor wind and wave resistance. Summary of the invention

[0004] Purpose of the invention: The purpose of the present invention is to provide an offshore wind power floating foundation, which has not only a simple structure but also good floating stability; another purpose of the present invention is to provide a wind power component; another purpose of the present invention is to provide a preparation method.

[0005] Technical solution:

[0006] An offshore wind power floating foundation, comprising:

[0007] A first column, a second column and a third column are arranged to be spaced apart and enclosed with each other;

[0008] a heave plate connected to one end of the first column;

[0009] a buoy connected between one end of the second column and one end of the third column;

[0010] a deck pipe connected between the other end of the first column and the other end of the second column;

[0011] Among them, the structures of the heave plate and the buoy are the same, both including double-layer tubes and concrete filled in the double-layer tubes, the double-layer tubes of the heave plate are connected to one end of the first column, and the double-layer tubes of the buoy are connected between one end of the second column and one end of the third column.

[0012] Optionally, the heave plate and the buoy each further include a plurality of shear keys, and the shear keys are connected to the interior of the double-layer tube.

[0013] Optionally, the heave plate and the buoy both further include a ballast tank and a water pump, the ballast tank is connected to the double-layer pipe, one end of the water pump is connected to the ballast tank, and the other end of the water pump is used to connect to seawater.

[0014] Optionally, an annular reinforcement member is also included, and the first column, the second column, the third column and the deck tube are all connected to the annular reinforcement member.

[0015] Optionally, the annular reinforcement member includes:

[0016] first tube body;

[0017] A second tube body sleeved on the first tube body;

[0018] A plurality of reinforcing plates connected between the first tube body and the second tube body at intervals;

[0019] The first column, the second column, the third column and the deck tube are all connected with the first tube body of the annular reinforcement member.

[0020] Optionally, also include:

[0021] a first diagonal brace connected between the deck tube and the buoy;

[0022] a second diagonal brace connected between the buoy and the second column;

[0023] A third diagonal brace is connected between the second column and the deck tube.

[0024] Optional,

[0025] The first column, the second column and the third column are all connected to landing components and are provided with an inlet and outlet;

[0026] The second column is also connected to a J-shaped tube;

[0027] The first column and the third column are both provided with cable guide holes.

[0028] Optionally, ribs are provided at the connection between the deck tube and the first column and the second column, at the connection between the buoy and the second column and the third column, and at the intersection of the first diagonal brace, the second diagonal brace and the third diagonal brace.

[0029] A wind power assembly includes an offshore wind power floating foundation and further includes:

[0030] A transition section, one end of which is connected to the other end of the second column;

[0031] A tower, one end of which is connected to the other end of the transition section;

[0032] A blade is connected to the other end of the tower.

[0033] A preparation method comprising:

[0034] First, double-layer pipes are welded in the factory, and then bulkheads are welded inside the double-layer pipes to form ballast tanks. Water pumps are placed in the ballast tanks, and then concrete is filled inside the double-layer pipes to form heave plates and buoys, and finally transported to the dock;

[0035] First, the annular reinforcement members are welded inside the first column, the second column, the third column and the deck tube, and then transported to the dock;

[0036] At the dock, first assemble and splice the heave plate, buoy, first column, second column, third column and deck pipe, and then conduct air tightness test;

[0037] According to the conditions of the wharf, the floating foundation of offshore wind power is floated on the sea surface by hoisting or sliding into the water, and the heave plate, buoy, first column, second column and third column provide buoyancy;

[0038] First, the offshore wind power floating foundation is fixed to the edge of the dock by temporary mooring, and then the tower and blades are hoisted in sequence and installed on the transition section of the second column to form a wind power assembly;

[0039] Use a tugboat to tow the wind turbine components to the operating sea area, connect the mooring chain, adjust the heave plate and buoy ballast, and bring the wind turbine components to the operating draft.

[0040] Beneficial effects:

[0041] (1) The heave plate and the buoy are used to play a certain floating role. Since the heave plate and the buoy both include double-layer tubes and concrete filled in the double-layer tubes, under the gravity of the concrete, it is easy to lower the center of gravity of the offshore wind power floating foundation of this scheme, so that the floating stability is good, and then the wind and wave resistance is good, in order to further increase the floating stability;

[0042] (2) The offshore wind power floating foundation of this scheme is assembled by cylindrical components such as the first column, the second column, the third column, the heave plate, the buoy and the deck pipe, so as to make the structure simple;

[0043] (3) The water pump facilitates the entry or discharge of seawater into the ballast tank, thereby facilitating real-time adjustment of the draft and movement posture of the heave plate and the buoy, and further facilitating optimization of the corresponding movement posture of the offshore wind power floating foundation of this scheme to ensure power generation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is one of the structural schematic diagrams of an offshore wind power floating foundation of Embodiment 1 of the present invention;

[0045] Figure 2 This is the second structural schematic diagram of an offshore wind power floating foundation according to the first embodiment of the present invention;

[0046] Figure 3This is the third structural schematic diagram of an offshore wind power floating foundation according to the first embodiment of the present invention;

[0047] Figure 4 This is a fourth structural schematic diagram of an offshore wind power floating foundation according to Embodiment 1 of the present invention;

[0048] Figure 5 is a cross-sectional view of a heave plate or buoy according to Embodiment 1 of the present invention;

[0049] Figure 6 is a cross-sectional view of an annular reinforcing member according to Embodiment 1 of the present invention;

[0050] Figure 7 This is a partial diagram of an offshore wind power floating foundation according to Embodiment 1 of the present invention;

[0051] Figure 8 is an internal view of a buoy according to Embodiment 1 of the present invention;

[0052] Fig. 9 is a flow chart of preparing an electromechanical component according to embodiment 1 of the present invention;

[0053] In the figure: 1, first column; 2, second column; 3, third column; 4, heave plate; 5, deck tube; 6, buoy; 71, double-layer tube; 711, outer tube; 72, concrete; 73, shear key; 74, ballast tank; 75, water pump; 8, annular reinforcement member; 81, first pipe body; 82, second pipe body; 83, reinforcement plate; 91, first diagonal brace; 92, second diagonal brace; 93, third diagonal brace; 100, landing member; 200, inlet and outlet; 300, J-tube; 400, fairlead hole; 500, rib plate; 600, transition section; 700, tower; 800, blade. DETAILED DESCRIPTION

[0054] In order to make the technical solution of the present invention clearer, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0055] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the invention are shown in the accompanying drawings. The words "first", "second", etc. described in the present invention are set for the convenience of describing the technical solution of the present invention, and have no specific limiting effect. They are all general references and do not constitute a limiting effect on the technical solution of the present invention. It should be noted that, in the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is 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 a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral 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, or it can be a connection between the insides of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Multiple technical solutions in the same embodiment, and multiple technical solutions in different embodiments, can be arranged and combined to form new technical solutions without contradictions or conflicts, all of which are within the scope of protection required by the present invention.

[0056] Example 1

[0057] like Figure 1 and Figure 5 The present embodiment provides an offshore wind power floating foundation, comprising: a first column 1, a second column 2 and a third column 3 which are arranged in an interval and enclosed relationship with each other; a heave plate 4 connected to one end of the first column 1; a buoy 6 connected between one end of the second column 2 and one end of the third column 3; a deck pipe 5 connected between the other end of the first column 1 and the other end of the second column 2; wherein the heave plate 4 and the buoy 6 have the same structure, both comprising a double-layer tube 71 and concrete 72 filled in the double-layer tube 71, the double-layer tube 71 of the heave plate 4 is connected to one end of the first column 1, and the double-layer tube 71 of the buoy 6 is connected between one end of the second column 2 and one end of the third column 3.

[0058] Specifically, the first column 1, the second column 2 and the third column 3 are used to play a certain floating role, and the first column 1, the second column 2 and the third column 3 are preferably single-layer tubes; the heave plate 4 and the buoy 6 are used to play a certain floating role. Since the heave plate 4 and the buoy 6 both include a double-layer tube 71 and concrete 72 filled in the double-layer tube 71, under the gravity of the concrete 72, it is easy to lower the center of gravity of the offshore wind power floating foundation of this scheme, so that the floating stability is good, and then the wind and wave resistance is good. In order to further increase the floating stability, the outer diameter of the heave plate 4 is preferably larger than the outer diameter of the first column 1, and the outer diameter of the heave plate 4 can be adjusted during preparation according to the working environment such as water depth and wind and wave regulation. For example, in deep water areas domain, the outer diameter of the heave plate 4 can be appropriately increased to further improve the heave suppression effect. In order to increase the connection firmness, one end of the buoy 6 preferably extends out of one end of the second column 2, and the other end of the buoy 6 preferably extends out of one end of the third column 3; the deck pipe 5 is used to connect the first column 1 and the second column 2, so as to increase the overall firmness of the offshore wind power floating foundation of this scheme. In order to increase the connection firmness, one end of the deck pipe 5 preferably extends out of the other end of the first column 1, and the other end of the deck pipe 5 preferably extends out of the other end of the second column 2; in summary, the offshore wind power floating foundation of this scheme is assembled through cylindrical components such as the first column 1, the second column 2, the third column 3, the heave plate 4, the buoy 6 and the deck pipe 5, so as to make the structure simple.

[0059] Further, such as Figure 5 The heave plate 4 and the buoy 6 also include a plurality of shear keys 73 , which are internally connected to the double-layer tube 71 .

[0060] Specifically, the shear keys 73 are convenient for increasing the connection area between the concrete 72 and the double-layer tube 71, and for increasing the shear resistance of the double-layer tube 71. A plurality of shear keys 73 are preferably evenly connected to the inner wall of the outer tube 711 of the double-layer tube 71 along the circumferential direction. The number of shear keys 73 is not limited and can be six, eight, etc.

[0061] Further, such as Figure 8 The heave plate 4 and the buoy 6 also include a ballast tank 74 and a water pump 75. The ballast tank 74 is connected to the double-layer pipe 71. One end of the water pump 75 is connected to the ballast tank 74, and the other end of the water pump 75 is used to communicate with seawater.

[0062] Specifically, the water pump 75 facilitates the entry or discharge of seawater into the ballast tank 74, thereby facilitating real-time adjustment of the draft and movement posture of the heave plate 4 and the buoy 6, and further facilitating optimization of the corresponding movement posture of the offshore wind power floating foundation of this scheme to ensure power generation efficiency. The number of ballast tanks 74 and water pumps 75 are preferably multiple, so as to increase the adjustment accuracy of the draft and movement posture of the heave plate 4 and the buoy 6. The water pump 75 can be of centrifugal type, volumetric type, etc.

[0063] Further, such as Figure 6 , and also includes an annular reinforcement member 8, and the first column 1, the second column 2, the third column 3 and the deck pipe 5 are all connected with the annular reinforcement member 8.

[0064] Specifically, the annular reinforcement member 8 is used to increase the strength of the first column 1, the second column 2, the third column 3 and the deck tube 5. Even if the thickness of the first column 1, the second column 2, the third column 3 and the deck tube 5 is relatively small, the annular reinforcement member 8 can prevent the first column 1, the second column 2, the third column 3 and the deck tube 5 from being deformed and damaged.

[0065] Further, such as Figure 6 The annular reinforcement member 8 includes: a first tube body 81; a second tube body 82 sleeved outside the first tube body 81; a plurality of reinforcement plates 83 connected between the first tube body 81 and the second tube body 82 at intervals; wherein the first tube body 81 of the annular reinforcement member 8 is connected to the first column 1, the second column 2, the third column 3 and the deck pipe 5.

[0066] Specifically, the reinforcing plate 83 is used to connect the first tube body 81 and the second tube body 82, so as to ensure the integrity of the annular reinforcing member 8. Since a plurality of reinforcing plates 83 are arranged at intervals, the annular reinforcing member 8 can be made hollow, thereby preventing the gravity of the annular reinforcing member 8 from being too large, thereby preventing the offshore wind power floating foundation of this scheme from having too deep a draft.

[0067] Further, such as Figure 1 , and also includes: a first diagonal brace 91 connected between the deck tube 5 and the buoy 6; a second diagonal brace 92 connected between the buoy 6 and the second column 2; and a third diagonal brace 93 connected between the second column 2 and the deck tube 5.

[0068] Specifically, the first diagonal brace 91, the second diagonal brace 92 and the third diagonal brace 93 are used to increase the structural strength of the offshore wind power floating foundation of this solution.

[0069] Further, such as Figure 1 and Figure 3 The first column 1, the second column 2 and the third column 3 are all connected with a landing member 100 and are provided with an inlet and outlet 200; the second column 2 is also connected with a J-shaped tube 300; the first column 1 and the third column 3 are both provided with a cable guide hole 400.

[0070] Specifically, the landing component 100 facilitates the landing and docking of the offshore wind power floating foundation of this scheme; the inlet and outlet 200 facilitates the staff to enter and exit the first column 1, the second column 2 and the third column 3 for construction and operation and maintenance, avoiding passing through the internal passages of the buoy 6 and the deck pipe 5. Except for construction and operation and maintenance, the inlet and outlet 200 is prohibited from being opened; the J-tube 300 facilitates the passage of the dynamic submarine cable; the cable guide hole 400 facilitates the passage of the dynamic submarine cable.

[0071] Further, such as Figure 7 The connection between the deck tube 5 and the first column 1 and the second column 2, the connection between the buoy 6 and the second column 2 and the third column 3, and the intersection of the first diagonal brace 91, the second diagonal brace 92 and the third diagonal brace 93 are all provided with ribs 500. Specifically, the ribs 500 are used to increase the structural strength of the offshore wind power floating foundation of this solution.

[0072] The present embodiment also provides a wind power component, including an offshore wind power floating foundation of the present embodiment, and also including: a transition section 600, one end of the transition section 600 is connected to the other end of the second column 2; a tower 700, one end of the tower 700 is connected to the other end of the transition section 600; and a blade 800 connected to the other end of the tower 700.

[0073] Specifically, the transition section 600 facilitates the installation of the tower 700 at the other end of the second column 2; the tower 700 facilitates the installation of the blades 800; and the blades 800 are used for power generation.

[0074] This embodiment also provides a preparation method, comprising:

[0075] First, a double-layer pipe 71 is welded in the factory, and then a partition is welded in the double-layer pipe 71 to form a ballast tank 74, and a water pump 75 is placed in the ballast tank 74. Then, concrete 72 is filled in the double-layer pipe 71 to form a heave plate 4 and a buoy 6, and finally transported to the dock;

[0076] First, an annular reinforcement member 8 is welded inside the first column 1, the second column 2, the third column 3 and the deck pipe 5, and then transported to the dock;

[0077] At the dock, first assemble and splice the heave plate 4, the buoy 6, the first column 1, the second column 2, the third column 3 and the deck pipe 5, and then conduct an air tightness test;

[0078] According to the dock conditions, the floating foundation of offshore wind power is floated on the sea surface by hoisting or sliding into the water, and the heave plate 4, the buoy 6, the first column 1, the second column 2, and the third column 3 provide buoyancy;

[0079] First, the offshore wind power floating foundation is fixed to the edge of the dock by temporary mooring, and then the tower 700 and the blade 800 are hoisted in sequence and installed on the transition section 600 of the second column 2 to form a wind power assembly;

[0080] The wind turbine assembly is towed to the operating sea area by a tugboat, the mooring chain is connected, and the ballast of the heave plate 4 and the buoy 6 is adjusted to bring the wind turbine assembly to the operating draft.

[0081] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. An offshore wind power floating foundation, characterized in that: include: A first column (1), a second column (2) and a third column (3) which are arranged to be spaced apart and enclosed with each other; A heave plate (4) connected to one end of the first column (1); A buoy (6) connected between one end of the second column (2) and one end of the third column (3); a deck pipe (5) connected between the other end of the first column (1) and the other end of the second column (2); The structures of the heaving plate (4) and the buoy (6) are the same, both comprising a double-layer tube (71) and concrete (72) filled in the double-layer tube (71); the double-layer tube (71) of the heaving plate (4) is connected to one end of the first column (1), and the double-layer tube (71) of the buoy (6) is connected between one end of the second column (2) and one end of the third column (3).

2. The offshore wind power floating foundation according to claim 1, characterized in that: The heave plate (4) and the buoy (6) each further include a plurality of shear keys (73), and the shear keys (73) are connected to the inside of the double-layer tube (71).

3. The offshore wind power floating foundation according to claim 1, characterized in that: The heave plate (4) and the buoy (6) both further include a ballast tank (74) and a water pump (75); the ballast tank (74) is connected to the double-layer pipe (71); one end of the water pump (75) is connected to the ballast tank (74); and the other end of the water pump (75) is used to communicate with seawater.

4. An offshore wind power floating foundation according to any one of claims 1 to 3, characterized in that: It also comprises an annular reinforcing member (8), and the first column (1), the second column (2), the third column (3) and the deck pipe (5) are all connected with the annular reinforcing member (8).

5. The offshore wind power floating foundation according to claim 4, characterized in that: The annular reinforcing member (8) comprises: The first tube body (81); A second tube body (82) sleeved on the outside of the first tube body (81); A plurality of reinforcing plates (83) connected at intervals between the first tube body (81) and the second tube body (82); The first column (1), the second column (2), the third column (3) and the deck tube (5) are all connected to the first tube body (81) of the annular reinforcement member (8).

6. An offshore wind power floating foundation according to any one of claims 1 to 3, characterized in that: Also includes: A first diagonal brace (91) connected between the deck tube (5) and the buoy (6); A second diagonal brace (92) connected between the buoy (6) and the second column (2); A third diagonal brace (93) connected between the second column (2) and the deck tube (5).

7. An offshore wind power floating foundation according to any one of claims 1 to 3, characterized in that: The first column (1), the second column (2) and the third column (3) are all connected to a landing component (100) and are provided with an inlet and outlet (200); The second column (2) is also connected to a J-shaped tube (300); The first column (1) and the third column (3) are both provided with a cable guide hole (400).

8. The offshore wind power floating foundation according to claim 6, characterized in that: Ribs (500) are provided at the connection points between the deck tube (5) and the first column (1) and the second column (2), at the connection points between the buoy (6) and the second column (2) and the third column (3), and at the intersections of the first diagonal brace (91), the second diagonal brace (92) and the third diagonal brace (93).

9. A wind power component, characterized in that: The offshore wind power floating foundation comprises the offshore wind power floating foundation according to any one of claims 1 to 8, and further comprises: A transition section (600), one end of the transition section (600) being connected to the other end of the second column (2); A tower (700), one end of the tower (700) being connected to the other end of the transition section (600); A blade (800) is connected to the other end of the tower (700).

10. A preparation method, characterized in that: include: First, a double-layer pipe (71) is welded in the factory, and then a partition is welded inside the double-layer pipe (71) to form a ballast tank (74), and a water pump (75) is placed in the ballast tank (74). Then, concrete (72) is filled in the double-layer pipe (71) to form a heave plate (4) and a buoy (6), and finally the vessel is transported to the dock; Firstly, an annular reinforcement member (8) is welded inside the first column (1), the second column (2), the third column (3) and the deck pipe (5), and then transported to the dock; At the dock, the heave plate (4), the buoy (6), the first column (1), the second column (2), the third column (3) and the deck pipe (5) are first assembled and spliced, and then an air tightness test is performed; According to the conditions of the wharf, the floating foundation of offshore wind power generation is floated on the sea surface by hoisting or sliding into the water, and the heave plate (4), the buoy (6), the first column (1), the second column (2) and the third column (3) provide buoyancy; First, the offshore wind power floating foundation is fixed to the edge of the dock by using temporary mooring, and then the tower (700) and the blade (800) are hoisted in sequence and installed on the transition section (600) of the second column (2), thereby forming a wind power assembly; The wind power assembly is towed to the operating sea area by a tugboat, a mooring chain is connected, and the ballast of the heave plate (4) and the buoy (6) is adjusted to bring the wind power assembly to an operating draft.

Images