Floating body power generation equipment and manufacturing method thereof

Abstract

The invention provides floating body power generation equipment and a manufacturing method thereof. The power generation equipment comprises a draught fan, a floating body and a balancing weight. The floating body is ellipsoidal, one end of the floating body is connected with the fan, and the other end of the floating body is connected with the balancing weight in the long axis direction of the floating body; wherein the number of the floating bodies is three or more than three, and the floating bodies are fixedly connected through the connecting pieces. According to the invention, three or more than three ellipsoidal floating bodies are adopted to form a buoyancy structure, so that the sea wave impact can be better reduced, and the stability is improved. The balancing weight is connected to the lower end of the ellipsoid in the long axis direction, so that the gravity center of the whole equipment can be lowered, and the stability of the equipment under severe sea conditions is improved. In addition, the draught fan is connected to the top end of the floating body and is higher than the water surface, and seawater corrosion can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind power generation, and in particular to a floating power generation device and a manufacturing method thereof. Background Art

[0002] Floating offshore wind power is a wind power generation technology that converts wind energy into electrical energy through the rotation of wind turbine blades. Its wind turbine is provided with buoyancy by a floating body and fixed to the seabed by anchor chains. It has good stability, is easy to transport and move, and can be used in deep ocean conditions.

[0003] However, the floating body of a floating offshore wind turbine is prone to tipping over in strong winds and waves, and is subject to greater impact from waves in severe sea conditions, which can cause damage to the outside of the floating body. This places higher demands on the strength of the floating body, which increases the manufacturing cost. In addition, the connection between the wind turbine buoy and the wind turbine is currently below sea level, which greatly increases the requirements for the corrosion resistance of the connection structure and the possibility of corrosion of the structure below sea level. In addition, as wind turbine blades have gradually lengthened in recent years, if traditional methods are used, the distance between the blades and the sea surface is low, which affects the safety of the wind turbine and places higher demands on the anti-corrosion of the wind turbine.

[0004] Therefore, there is a need for a wind power generation device that has strong stability and can increase the height of the wind turbine. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a floating power generation device with strong stability and capable of increasing the height of a wind turbine, and a manufacturing method thereof.

[0006] The present invention provides a floating power generation device, comprising: a wind turbine, a floating body and a counterweight block; the floating body is ellipsoidal, and in the long axis direction of the floating body, one end is connected to the wind turbine, and the other end is connected to the counterweight block; wherein the floating bodies have three or more, and the floating bodies are fixedly connected by connecting pieces.

[0007] Furthermore, the floating body is connected to the wind turbine via the connecting piece.

[0008] Furthermore, there are four floating bodies, and the connecting parts include a vertical rod and four inclined rods. The four inclined rods are arranged in an "X" shape. The wind turbine is connected to the vertical rod, and the lower end of the vertical rod is connected to the inner end of each of the inclined rods at one point, and the outer end of each of the inclined rods is respectively connected to one of the floating bodies.

[0009] Furthermore, a cross bar is connected between two adjacent inclined rods.

[0010] Furthermore, the floating body is connected to the counterweight block via a connecting ring.

[0011] Furthermore, the floating body is formed by welding steel plates.

[0012] Furthermore, reinforcing ribs are connected at the welds between the steel plates.

[0013] Furthermore, the steel plate is in the shape of an evenly divided ellipsoid.

[0014] The present invention also provides a method for manufacturing a floating power generation device, comprising:

[0015] S1, selecting a steel plate, cutting the steel plate, and bending the steel plate into an ellipsoidal shape;

[0016] S2, welding the cut and bent steel plates to form an ellipsoidal floating body;

[0017] S3, welding a connector at one end of the long axis of the floating body, and connecting the fan through the connector;

[0018] S4, a connecting ring is welded at the other end of the long axis of the floating body, and a counterweight is connected through the connecting ring.

[0019] Furthermore, the step S2 also includes: welding reinforcing ribs on the welds of the steel plates.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention uses three or more ellipsoidal floats to form a buoyancy structure, which can better reduce the impact of waves and improve stability. And a counterweight is connected to the lower end in the direction of the long axis of the ellipsoid, which can lower the center of gravity of the entire device, thereby improving the stability of the device in severe sea conditions. In addition, the fan is connected to the top of the float, which is higher from the water surface, which can reduce the corrosion of seawater.

[0022] 2. The connector of the present invention is connected to the top of the floating body, which is higher than the water surface, and can reduce the corrosion of seawater. It is also made of corrosion-resistant high-strength material, which further improves the structural strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a schematic structural diagram of a floating power generation device according to an embodiment of the present invention;

[0025] Figure 2A top view of a floating body and a connecting member structure of a floating power generation device according to an embodiment of the present invention;

[0026] Figure 3 This is a front view of a floating body according to an embodiment of the present invention;

[0027] Figure 4 The figure is a top view of a floating body according to an embodiment of the present invention.

[0028] The accompanying drawings are marked as:

[0029] 1: fan; 2: connecting part; 3: floating body; 31: steel plate; 32: reinforcing rib; 4: connecting ring; 5: counterweight. DETAILED DESCRIPTION

[0030] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0032] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, 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 it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] like Figure 1As shown, an embodiment of the present invention provides a floating power generation device, including: a wind turbine 1, a floating body 3 and a counterweight 5; the floating body 3 is ellipsoidal, and in the direction of the long axis of the floating body 3, one end is connected to the wind turbine 1, and the other end is connected to the counterweight 5; wherein the floating body 3 has three or more floating bodies 3, and the floating bodies 3 are fixedly connected by a connector 2. The present invention uses three or more ellipsoidal floating bodies 3 to form a buoyancy structure, and utilizes the structural characteristics of the long axis of the ellipsoidal body to pull one end of the long axis of the ellipsoidal floating body 3 into the bottom of the water by using the counterweight 5, so as to ensure that the other end of the long axis floats stably above the water surface, and installs the wind turbine 1 on the side exposed to the water surface, which not only improves the stability of the structure, but also makes the installation position of the wind turbine 1 high enough so as not to be submerged below the sea level and eroded by seawater. By adjusting the weight of the counterweight 5 and the major axis to minor axis ratio of the floating body 3, the floating stability and performance of the floating power generation device can be adjusted.

[0034] Preferably, the floating body 3 is connected to the fan 1 through the connecting piece 2. In order to ensure corrosion resistance, the connecting piece 2 can be made of seawater corrosion resistant material. Preferably, the connecting piece 2 should also be made of high-strength material to have strong bending resistance and improve the overall connection strength of the equipment. In a specific embodiment, Figure 2 As shown, there are four floats 3, and the connecting member 2 includes a vertical rod and four inclined rods. The four inclined rods are arranged in an "X" shape. The wind turbine 1 is connected to the vertical rod, and the lower end of the vertical rod is connected to the inner end of each inclined rod at one point. The outer end of each inclined rod is respectively connected to a float 3. Preferably, in order to improve the connection stability of the inclined rods, a cross bar can also be connected between two adjacent inclined rods. This embodiment utilizes four floats 3 to connect to form a quadrilateral support structure, which has high stability, and the number of floats 3 used is also reasonable, so the cost is not too high. It can be understood that according to the needs of actual working conditions, the number of floats 3 of the present invention can also be five or more, and can also be connected into polygons of other shapes, all of which can fall within the protection scope of the present invention.

[0035] The present invention uses multiple ellipsoidal floats 3 to form a buoyancy structure, which can better reduce the impact of waves and improve stability. And the counterweight block 5 is connected to the lower end in the direction of the ellipsoidal major axis, which can lower the center of gravity of the entire device, thereby improving the stability of the device in severe sea conditions. In addition, the fan 1 and the connector 2 are connected to the top of the float 3, which is higher than the water surface, which can reduce the corrosion of seawater.

[0036] Preferably, the buoy 3 is connected to the counterweight 5 via a connecting ring 4. A chain of a certain length may be provided between the connecting ring 4 and the counterweight 5, and the length of the chain and the weight of the counterweight 5 may be determined according to sea conditions and other conditions. The connecting ring 4 and the counterweight 5 are both made of seawater corrosion resistant materials to achieve a good seawater corrosion resistance effect.

[0037] like Figure 3 and Figure 4 As shown, the float 3 is welded by steel plates 31. Preferably, the steel plate is a thin plate with a thickness of 1.5mm to 3mm, which can ensure the structural strength and is not too heavy, thereby ensuring the floating effect. The steel plate 31 here can be stainless steel, which has high strength and corrosion resistance and is suitable for making the float 3. It can be understood that the steel plate 31 here can also be made of other materials with good corrosion resistance such as aluminum plates or copper plates. Preferably, the welds between the steel plates 31 are connected with reinforcing ribs 32 to increase the strength of the float 3 and improve the sealing of the weld joints. Further preferably, the steel plate 31 is in the shape of an evenly divided ellipsoid, which is convenient for uniform processing and welding, and the weld shape is regular, which is conducive to improving the process level and saving processing and manufacturing costs.

[0038] The present invention also provides a method for manufacturing a floating power generation device, comprising:

[0039] S1, select a steel plate 31, cut the steel plate 31, and bend it into an ellipsoidal shape. It can be understood that the steel plate 31 can also be formed by stamping, and the size of the ellipsoidal surface can be consistent, which facilitates the purpose of uniform processing. An ellipsoidal floating body 3 can be formed by splicing 6, 8, 10, or 12 equally divided ellipsoidal surfaces.

[0040] S2, welding the cut and bent steel plates 31 to form an ellipsoidal float 3. An ellipsoidal float 3 can be welded by 6, 8, 10, or 12 equally divided ellipsoidal surfaces. Preferably, this step also includes welding reinforcing ribs 32 on the welds of the steel plates 31, and the reinforcing ribs 32 can increase the strength of the float 3 and improve the sealing of the weld joints.

[0041] S3, weld a connector 2 at one end of the long axis of the floating body 3, and connect the fan 1 through the connector 2. In order to ensure corrosion resistance, the connector 2 can be made of seawater corrosion resistant material. The connector 2 should also be made of high-strength material to have strong bending resistance and improve the overall connection strength of the equipment. Preferably, there are three or more floating bodies 3, and all the floating bodies 3 are connected together through the connector 2. For example, in the above specific embodiment, Figure 2 As shown, there are four floating bodies 3, and the connecting member 2 includes a vertical rod and four inclined rods. The four inclined rods are arranged in an "X" shape. The wind turbine 1 is connected to the vertical rod, and the lower end of the vertical rod is connected to the inner end of the inclined rod at one point. The outer ends of the inclined rods are respectively connected to a floating body 3.

[0042] S4, welding a connecting ring 4 at the other end of the long axis of the floating body 3, and connecting the counterweight 5 through the connecting ring 4. Preferably, a chain of a certain length can be connected between the connecting ring 4 and the counterweight 5, and the length of the chain and the weight of the counterweight 5 can be determined according to conditions such as sea conditions. The connecting ring 4 and the counterweight 5 are both made of seawater corrosion-resistant materials to achieve a good seawater corrosion-resistant effect.

[0043] The floating power generation equipment made by the present invention adopts an ellipsoidal floating body 3, which can better reduce the impact of waves and improve stability. And the counterweight block 5 is connected to the lower end in the direction of the long axis of the ellipsoid, which can lower the center of gravity of the whole equipment, thereby improving the stability of the equipment in severe sea conditions. In addition, the fan 1 and the connecting member 2 are connected to the top of the floating body 3, which is higher than the water surface, and can reduce the corrosion of seawater.

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A floating power generation device, characterized in that: include: A fan (1), a floating body (3) and a counterweight (5); The floating body (3) is ellipsoidal in shape, and in the long axis direction of the floating body (3), one end is connected to the fan (1), and the other end is connected to the counterweight (5); There are three or more floating bodies (3), and the floating bodies (3) are fixedly connected via connecting pieces (2).

2. The floating power generation equipment according to claim 1, characterized in that: The floating body (3) is connected to the fan (1) via the connecting piece (2).

3. The floating power generation equipment according to claim 2, characterized in that: There are four floating bodies (3), and the connecting member (2) includes a vertical rod and four inclined rods. The four inclined rods are arranged in an "X" shape. The vertical rod is connected to the fan (1). The lower end of the vertical rod is connected to the inner end of each of the inclined rods at one point, and the outer end of each of the inclined rods is respectively connected to one of the floating bodies (3).

4. The floating power generation equipment according to claim 3, characterized in that: A cross bar is connected between two adjacent tilting bars.

5. The floating power generation equipment according to claim 1, characterized in that: The floating body (3) is connected to the counterweight block (5) via a connecting ring (4).

6. The floating power generation equipment according to claim 1, characterized in that: The floating body (3) is formed by welding steel plates (31).

7. The floating power generation equipment according to claim 6, characterized in that: Reinforcing ribs (32) are connected at the welds between the steel plates (31).

8. The floating power generation equipment according to claim 7, characterized in that: The steel plate (31) is in the shape of an evenly divided ellipsoidal surface.

9. A method for manufacturing a floating power generation device, characterized in that: The following steps are involved: S1, selecting a steel plate (31), cutting the steel plate (31), and bending the steel plate (31) into an ellipsoidal shape; S2, welding the cut and bent steel plates (31) to form an ellipsoidal floating body (3); S3, welding a connecting piece (2) to one end of the long axis of the floating body (3), and connecting the fan (1) via the connecting piece (2); S4, welding a connecting ring (4) to the other end of the long axis of the floating body (3), and connecting the counterweight (5) through the connecting ring (4).

10. The method for manufacturing a floating power generation device according to claim 9, characterized in that: The step S2 further comprises: welding a reinforcing rib (32) on the weld of the steel plate (31).

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