Floating body power generation device and manufacturing method thereof

Abstract

The invention provides a floating body power generation device, a fan and a floating body. The floating body comprises a hollow inner core and a solid shell. The top end of the floating body is connected with the fan; wherein the number of the floating bodies is three or more, and the floating bodies are fixedly connected through connecting pieces; and the floating body is connected with the fan through the connecting piece. Three or more floating bodies are adopted to form a buoyancy structure, sea wave impact can be better reduced, and stability 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. The wind turbine is provided with buoyancy by a float 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, the art needs 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] On the one hand, the present invention provides a floating power generation device, including a wind turbine and a floating body, wherein the floating body includes a hollow inner core and a solid outer shell; the wind turbine is connected to the top of the floating body; wherein the floating bodies have three or more, and the floating bodies are fixedly connected by connecting members; the floating body is connected to the wind turbine via the connecting member.

[0007] Furthermore, the floating body is a cylinder, and the height of the floating body is greater than the diameter of the floating body.

[0008] Furthermore, the shell includes an inner wall, an outer wall and a sealing plate, the inner wall and the outer wall are both made of corrugated plates, the sealing plates are arranged at both ends of the inner wall and the outer wall, and filling material is poured between the inner wall and the outer wall.

[0009] Furthermore, the filling material is concrete.

[0010] Furthermore, the corrugated plates forming the inner wall and the corrugated plates forming the outer wall are arranged in a staggered manner, in parallel, or in a relative manner.

[0011] Furthermore, the waveform of the corrugated plate is one of a sine shape, a trapezoidal shape, a broken line shape or a rectangular shape.

[0012] Furthermore, the corrugated plates are formed by welding steel plates.

[0013] 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 top end of the vertical rod is connected to the wind turbine, and the bottom end of the vertical rod is connected to the inner end of each of the inclined rods at one point. The outer end of each of the inclined rods is respectively connected to one of the floating bodies.

[0014] Furthermore, a cross bar is connected between two adjacent inclined rods.

[0015] On the other hand, the present invention also provides a method for manufacturing a floating power generation device, comprising the following steps:

[0016] S1, selecting steel plates and welding the steel plates into corrugated plates;

[0017] S2, forming the inner wall and the outer wall of the floating body respectively by staggered arrangement, parallel arrangement or relative arrangement of the two corrugated plates;

[0018] S3, pouring a filling material between the inner wall and the outer wall;

[0019] S4, welding sealing plates at both ends of the inner wall and the outer wall;

[0020] S5, welding a connector at one end of the floating body and connecting the fan through the connector.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention uses three or more floats to form a buoyancy structure, which can better reduce the impact of waves and improve stability; 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.

[0023] 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.

[0024] 3. The float of the present invention adopts a hollow inner core and a solid outer shell, which can ensure that the float has a certain weight and can be submerged in water, while minimizing the production cost and allowing part of the float to float. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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.

[0026] Figure 1 This is a schematic structural diagram of a floating power generation device according to an embodiment of the present invention;

[0027] Figure 2 A top view of a floating body and a connecting member of a floating power generation device according to an embodiment of the present invention;

[0028] Figure 3 is a cross-sectional view of a floating body according to an embodiment of the present invention;

[0029] Figure 4 It is a top view of the floating body according to an embodiment of the present invention.

[0030] The accompanying drawings are marked as:

[0031] 1: fan; 2: connecting parts; 3: floating body; 4: cross bar; 5: corrugated plate. DETAILED DESCRIPTION

[0032] 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.

[0033] 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.

[0034] 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.

[0035] like Figures 1 to 4 As shown, an embodiment of the present invention provides a floating power generation device, including: a wind turbine 1 and a floating body 3, wherein the floating body 3 includes a hollow inner part and a solid outer shell; the wind turbine 1 is connected to the top of the floating body 3. There are three or more floating bodies 3, and the floating bodies 3 are fixedly connected by connecting members 2. The floating body 3 is connected to the wind turbine 1 through the connecting member 2.

[0036] The present invention uses three or more floats 3 to form a buoyancy structure, and installs a fan 1 on the side exposed above the water surface, which not only improves the stability of the structure, but also makes the installation position of the fan 1 high enough to avoid being submerged below the sea level and eroded by sea water.

[0037] The floating body 3 of the present invention adopts a hollow structure, which can effectively reduce the overall weight of the floating body 3 and save manufacturing costs. The solid shell serves as a counterweight for the floating body 3, pulling the bottom end of the floating body 3 into the water bottom to ensure that the other end floats stably on the surface of the water. By changing the material of the solid shell, as well as the diameter and height of the floating body 3, the floating stability and performance of the floating power generation device can be adjusted.

[0038] Preferably, the float 3 is a cylinder, and the height of the float 3 is greater than the diameter of the float 3. The diameter of the float 3 is 20-40m, and the height is 30-50m. With such a design, the bottom of the float 3 is easier to sink into the water, and the other end floats stably on the water surface. Therefore, the installation position of the wind turbine 1 installed on the top of the float 3 is high enough not to be submerged below the sea level and eroded by sea water.

[0039] Preferably, the shell includes an inner wall, an outer wall and a sealing plate, both of which are made of a corrugated plate 5, the sealing plates are arranged at both ends of the inner wall and the outer wall, and a filling material is poured between the inner wall and the outer wall. The corrugated plate 5 has a unique "accordion effect", which makes it have a large out-of-plane stiffness, retaining the advantages of a flat plate while overcoming the disadvantages of a flat plate, significantly reducing out-of-plane deformation, and improving shear yield strength.

[0040] Preferably, the filling material is concrete, and pouring concrete into the two layers of corrugated plates plays a connecting role and enhances their structural strength. It is understandable that the filling material can also be other materials.

[0041] Preferably, the corrugated plates 5 forming the inner wall and the corrugated plates 5 forming the outer wall are arranged in a staggered, parallel or relative manner. Figure 4 The figure shows a relative arrangement. Common waveforms of the corrugated plate 5 include sinusoidal, trapezoidal, broken line and rectangular, and the two most commonly used waveforms are sinusoidal and trapezoidal. It is understandable that the specific waveform used and the arrangement between the two layers of corrugated sheets can be determined according to the situation.

[0042] Preferably, the sealing plate and the floating body 3 are both made of stainless steel, which has high strength and corrosion resistance and can extend the service life of the floating power generation device.

[0043] like Figure 4 As shown, the corrugated plate 5 is welded by steel plates. Preferably, the steel plates are thin plates with a thickness of 1.5 mm to 3 mm, which can ensure structural strength and are not too heavy, thereby ensuring the floating effect.

[0044] Preferably, the floating body 3 is connected to the fan 1 through the connector 2. In order to ensure corrosion resistance, the connector 2 can be made of seawater corrosion resistant material. Preferably, 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.

[0045] In a 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, and the four inclined rods are arranged in an "X" shape. The vertical rod is connected to the wind turbine 1, and the lower end of the vertical rod is connected to the inner end of each inclined rod at one point, and the outer end of each inclined rod is respectively connected to a floating body 3. Preferably, the vertical rod is connected to the inclined rod in one piece to increase the connection strength.

[0046] Preferably, in order to improve the connection stability of the tilting rod, a cross bar 4 can also be connected between two adjacent tilting rods. Preferably, the cross bar 4 is connected to the tilting rod as a whole to increase the connection strength. This embodiment uses four floating bodies 3 to form a quadrilateral support structure, which has high stability, and the number of floating bodies 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 floating bodies 3 of the present invention can also be five or more, and can also be connected into polygons of other shapes, which can all fall within the protection scope of the present invention.

[0047] Based on the above floating power generation equipment, the present invention also provides a method for manufacturing a floating power generation equipment, comprising the following steps:

[0048] S1, select a steel plate and weld the steel plate into a corrugated plate; it is understandable that the steel plate can also be formed by stamping;

[0049] S2, forming the inner wall and the outer wall of the floating body 3 respectively by staggered arrangement, parallel arrangement or relative arrangement of the two corrugated plates;

[0050] S3, pouring filling material between the inner wall and the outer wall; preferably, concrete is used for filling to enhance the structural strength;

[0051] S4, welding sealing plates at both ends of the inner wall and the outer wall;

[0052] S5, welding a connector 2 at one end of the floating body 3, and connecting 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.

[0053] Preferably, there are three or more floating bodies 3, and all the floating bodies 3 are connected together by the connecting member 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.

[0054] The present invention uses multiple floats 3 to form a buoyancy structure, which can better reduce the impact of waves and improve stability. 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, and can reduce the corrosion of seawater.

[0055] 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) and a floating body (3), wherein the floating body (3) comprises a hollow inner part and a solid outer shell; the fan (1) is connected to the top of the floating body (3); There are three or more floating bodies (3), and the floating bodies (3) are fixedly connected by connecting pieces (2); The floating body (3) is connected to the fan (1) via the connecting piece (2).

2. The floating power generation device according to claim 1, characterized in that: The floating body (3) is a cylinder, and the height of the floating body (3) is greater than the diameter of the floating body (3).

3. The floating power generation device according to claim 1, characterized in that: The shell comprises an inner wall, an outer wall and a sealing plate, the inner wall and the outer wall are both made of corrugated plates (5), the sealing plates are arranged at both ends of the inner wall and the outer wall, and a filling material is poured between the inner wall and the outer wall.

4. The floating power generation device according to claim 3, characterized in that: The filling material is concrete.

5. The floating power generation device according to claim 3, characterized in that: The corrugated plates (5) forming the inner wall and the corrugated plates (5) forming the outer wall are arranged in a staggered manner, in parallel, or in a relative manner.

6. The floating power generation device according to claim 3, characterized in that: The waveform of the corrugated plate (5) is one of a sine shape, a trapezoidal shape, a broken line shape or a rectangular shape.

7. The floating power generation device according to claim 3, characterized in that: The corrugated plates (5) are made by welding steel plates.

8. The floating power generation device according to claim 1, 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 top end of the vertical rod is connected to the fan (1), and the bottom 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 one of the floating bodies (3).

9. The floating power generation device according to claim 8, characterized in that: A cross bar (4) is connected between two adjacent inclined bars.

10. A method for manufacturing a floating power generation device, characterized in that: The following steps are involved: S1, selecting steel plates and welding the steel plates into corrugated plates; S2, forming the inner wall and the outer wall of the floating body (3) respectively by arranging two corrugated plates in a staggered, parallel or relative manner; S3, pouring a filling material between the inner wall and the outer wall; S4, welding sealing plates at both ends of the inner wall and the outer wall; S5, welding a connecting piece (2) at one end of the floating body (3), and connecting the fan (1) via the connecting piece (2).

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