KR102039678B1 - Offshore wind power generator - Google Patents

Abstract

Disclosed is an offshore wind power generator, which can comprise: a lower tower installed in a foundation; an upper tower assembled to an upper end of the lower tower; a supporter detachably mounted in an upper portion of the lower tower and supporting a lower portion of the upper tower for a lower end of the upper tower to be matched with the upper end of the lower tower; and a fastening means for fixing the upper end of the lower tower to the lower end of the upper tower.

Description

Offshore Wind Generators {OFFSHORE WIND POWER GENERATOR}

The present invention relates to an offshore wind generator.

As the demand for green energy development grows, power generation using wind generators is in the spotlight worldwide. However, in order to install a wind generator demanding environmental conditions are required. For example, the place where the wind generator is installed should be a place where a certain wind speed can be ensured to obtain a significant rotation of the blade, and the pollution due to the noise generated when the wind generator is driven should not be an issue. do. In addition, even if these environmental conditions are satisfied, a very large area is required to install a wind generator.

Recently, there has been a growing interest in the supporters of offshore wind generators, which are relatively free from the above constraints. The supporter of the offshore wind generator can be installed in various ways, but in general, the parts are divided into several units and manufactured on land, and then, the manufactured units are installed by moving the assembled units to the sea. Ships that ship support units of offshore wind generators manufactured on land and install supporters of offshore wind generators at sea are generally referred to as wind turbine installation vessels (WTIV).

Wind generator installation vessels can be operated in Transit Mode and Jackup Mode due to the nature of the work. Specifically, the wind generator installation vessel moves to the navigation mode to the position to install the supporter of the offshore wind generator. In nautical mode, the leg can remain moved above the hull to reduce seawater resistance. The wind generator installation vessel then switches to jack-up mode, lowers the leg into the seabed, and lifts the hull along the leg so that the hull can be spaced a certain distance from the sea surface. When the hull reaches a certain position, the wind generator installation vessel stops the movement of the hull and installs the supporter of the offshore wind generator.When the installation is completed, the ship proceeds to the next installation position in the reverse order. .

However, as wind turbines become larger, it is not easy to assemble wind turbines. Especially, lifting the parts of offshore wind generators mounted on the hull by using cranes to install them on the sea is not only time-consuming but also risks of safety accidents. Because of the presence of wind, you may not be able to perform work on strong winds.

Accordingly, there is a demand for a technology for moving wind turbine parts to an offshore installation site so that they can be quickly and effectively installed.

Patent Literature: Korean Patent Publication No. 10-2013-0012106 (published Feb. 01, 2013)

Embodiments of the present invention are to provide an offshore wind generator that can be installed quickly on the sea.

The supporter of the offshore wind generator according to an aspect of the present invention, a supporter of the offshore wind generator for assembling the upper tower to the lower tower installed in the foundation, the support for wrapping and supporting at least a portion of the lower portion of the upper tower; A fixing part detachably mounted to an upper side of the lower tower; And an angle adjusting part connecting the fixing part to the supporting part such that the supporting part is rotatable using the fixing part as a turning point.

At this time, the angle adjustment portion support piece that can be selectively fixed to the lower tower; A first cylinder hinged to the back side of the support; And a second cylinder having one end rotatably mounted to the support piece and the other end rotatably connected to the first cylinder.

Offshore wind generator according to an aspect of the present invention, the lower tower installed in the foundation; An upper tower assembled to an upper end of the lower tower; A supporter detachably mounted on an upper portion of the lower tower and supporting a lower portion of the upper tower such that a lower end of the upper tower is matched to an upper end of the lower tower; And it may include a binding means for fixing the upper end of the lower tower and the lower end of the upper tower.

At this time, the supporter is a support for wrapping and supporting at least a portion of the lower portion of the upper tower; A fixing part detachably mounted to an upper side of the lower tower; And an angle adjusting part connecting the fixing part to the supporting part such that the supporting part is rotatable using the fixing part as a turning point.

In addition, the binding means is a ball unit provided in the upper center of the lower tower; An edge groove portion provided at an upper edge portion of the lower tower; A center groove provided in the lower center of the upper tower to insert the ball portion; And a hook portion provided at the lower edge portion of the upper tower to be clamped to the edge groove portion.

In addition, the angle adjustment portion support piece that can be selectively fixed to the lower tower; A first cylinder hinged to the back side of the support; And a second cylinder having one end rotatably mounted to the support piece and the other end rotatably connected to the first cylinder.

In addition, the hook portion is provided in a plurality of spaced apart in the circumferential direction from the lower edge of the upper tower, the edge groove portion is a plurality of spaced apart in the circumferential direction from the upper edge of the lower tower so that the hook portion is inserted correspondingly. It may be provided as.

Embodiments of the present invention by using the supporter and the lifting device to mount the upper tower in the lower tower installed on the sea, there is an advantage that can be installed quickly and stably in the wind generator at sea.

1 is a side view showing an offshore wind generator according to an embodiment of the present invention.
FIG. 2 is an enlarged perspective view illustrating an enlarged portion "A" of FIG. 1.
3 is a state diagram showing a state in which the upper tower is supported on the support in the offshore wind power generator according to an embodiment of the present invention.
4 is a state diagram showing a state in which the top tower is standing by the lifting device in the offshore wind power generator according to an embodiment of the present invention.
5 is a state diagram illustrating a state in which the upper tower of the offshore wind generator according to an embodiment of the present invention is mounted on the lower tower.
Figure 6 is an enlarged view showing an enlarged portion "B" of Figure 5 which is a coupling portion between the upper tower and the lower tower of the offshore wind generator according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration and operation according to the embodiment of the present invention. The following description is one of several aspects of the invention that can be claimed, and the following description may form part of the detailed description of the invention. However, in describing the present invention, a detailed description of known configurations or functions may be omitted to clarify the present invention.

As the invention allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

Terms including ordinal numbers such as first and second may be used to describe various components, but the components are not limited by the terms. These terms are only used to distinguish one component from another. When a component is said to be 'connected' or 'connected' to another component, it may be directly connected to or connected to that other component, but it may be understood that another component may exist in between Should be. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

1 is a side view showing an offshore wind generator according to an embodiment of the present invention, Figure 2 is an enlarged perspective view showing an enlarged portion "A" of Figure 1, Figure 3 is an offshore according to an embodiment of the present invention In the wind generator, it is a state diagram showing a state in which the upper tower is supported on the support, Figure 4 is a state diagram showing a state in which the upper tower of the offshore wind generator in accordance with an embodiment of the present invention is standing by the lifting device.

As shown in Figures 1 to 4, the offshore wind generator according to an embodiment of the present invention, may include a lower tower 11, upper tower 12, the supporter 100 and the binding means 300. have.

Specifically, the lower tower 11 may be installed in the foundation 20 installed at sea. The upper tower 12 may be mounted on the upper end of the lower tower 11 so that the upper tower 12 is positioned on the same vertical line.

The upper tower 12 may be installed at the upper end of the lower tower 11, and the nacelle 13 and the blade 14 for wind power generation may be mounted at the upper end of the upper tower 12.

The upper tower 12 may be positioned at the top of the lower tower 11 to be positioned on the same vertical line as the lower tower 11 through the lifting device 50 while being supported by the supporter 100. . The upper tower 12 may be fixed to the upper end of the lower tower 11 through the binding means 300.

The supporter 100 is configured to assemble the upper tower 12 to the lower tower 11, and may be detachably mounted on the upper portion of the lower tower 11.

For example, when assembling the upper tower 12 to the lower tower 11, the supporter 100 may be mounted on an upper side of the lower tower 11, and the upper tower 12 to the lower tower 11. Upon completion of the assembly, the supporter 100 may be separated from the upper one side of the lower tower (11). In this embodiment, the supporter 100 is mounted on the upper part of the lower tower 11, but of course, in addition to the lower tower 11, the supporter 100 may be mounted on the foundation 20.

The supporter 100 may include a support 110, a fixing part 120, and an angle adjuster 130. The support 110 may be provided in a form that can at least partially wrap the lower portion of the upper tower 12. For example, the support 110 may be provided as a semi-circular mesh material corresponding to the outer diameter of the upper tower 12.

The fixing part 120 is configured to fix the supporter 100 to the lower tower 11, and may be detachably mounted to one upper surface of the lower tower 11. For example, the fixing part 120 may be composed of an electromagnet that can be selectively attached to or detached from the lower tower 11 by electromagnetic force, or a fixing member for fixing the supporter 100 to the lower tower 11. .

The angle adjuster 130 may be connected to the support 110 so that the support 110 is rotatable using the fixing part 120 as a turning point. For example, the angle adjuster 130 includes a support piece 133 that can be selectively fixed to the lower tower 11, a first cylinder 131 hinged to the rear surface of the support 110, and one end of the support piece. It may be configured as a second cylinder 132 rotatably mounted to the 133 and the other end is connected to the first cylinder 131 to be retractable. Here, the support piece 133 may be an electromagnet that can be selectively fixed to the lower tower 11 by electromagnetic force.

The angle adjusting unit 130 may include an actuator that can adjust the angle of the supporter 100 by adjusting the length. For example, the angle adjusting unit 130 may be a hydraulic cylinder that can be adjusted in length using the hydraulic pressure. In this case, according to the lifting angle that the upper tower 12 is lifted by the lifting device 50, the entry and exit length of the first cylinder 131 can be controlled by the hydraulic pressure, the upper tower 12 is supported by the supporter 100 In a state supported by the support 110 of), it can be lifted more quickly and effectively.

Here, the lifting device 50 may lift the upper tower 12 so that the lower tower 11 and the upper tower 12 are located on the same vertical line. In this embodiment, the lifting device 50 may be used crane equipment mounted on the barge 40, but is not limited to this, of course, various equipment for lifting the upper tower 12 may be used. .

5 is a state diagram illustrating a state in which an upper tower of an offshore wind generator is mounted on a lower tower according to an embodiment of the present invention, and FIG. 6 is an upper tower and a lower tower of an offshore wind generator according to an embodiment of the present invention. 5 is an enlarged view illustrating an enlarged portion "B" of FIG.

As shown in FIGS. 5 to 6, the binding means 300 includes the upper tower 12 and the upper tower 12 of the lower tower 11 with the lower tower 11 and the upper tower 12 positioned on the same vertical line. The bottom of the can be fixed to each other.

To this end, the binding means 300 is a ball portion 311 protruding in the upper center of the lower tower 11, the edge groove portion 312 is provided on the upper edge of the lower tower 11, the ball portion 311 The center groove 322 is provided in the lower center of the upper tower 12 so that the insertion is possible, and the hook portion 321 provided in the lower edge of the upper tower 12 to be clamped to the edge groove 312 Can be.

Here, the edge groove portion 312 may be provided in plurality in the circumferential direction spaced apart from the upper edge of the lower tower 11, the hook portion 321 in the circumferential direction at the lower edge of the upper tower 12 A plurality of spaced apart may be provided.

Accordingly, when the upper tower 12 is positioned on the same vertical line as the lower tower 11 at the upper end of the lower tower 11 by the lifting device 50, the ball portion 311 of the lower tower 11 is the upper portion The center portion 322 of the tower 12 may be inserted and coupled, and the hook portion 321 of the upper tower 12 may be inserted into the edge groove 312 of the lower tower 11 and clamped.

Referring to the operation of the present invention made of such a configuration as follows.

As shown in FIGS. 1 to 2, in the state where the installation of the lower tower 11 to the foundation 20 is completed, the components of the offshore wind generator (for example, the upper tower 12, the blade 14, and the nacelle ( 13) ...) is loaded barge 40 is stably fixed to the foundation (20). At this time, the barge 40 may recognize the position of the foundation 20 automatically, and may be fixed to the foundation 20 through the creeper 41.

When the barge 40 is fixed to the foundation 20, the supporter 100 is mounted on the lower tower 11 (or foundation). At this time, the fixing part 120 of the supporter 100 is fixed to the lower tower 11 by an electromagnet or bolting member, and the angle adjusting part 130 of the supporter 100 is connected to the lower tower through the support piece 133. 11) can be fixed.

When the supporter 100 is installed in the lower tower 11, as shown in FIG. 3, the upper tower 12 is mounted on the support 110 of the supporter 100. In this case, the upper tower 12 may be moved by a trolley 30 on a barge 40 and mounted on the support 110 of the supporter 100.

When the upper tower 12 is mounted on the support 110 of the supporter 100, as shown in FIG. 4, the upper tower 12 is lifted by the lifting device 50 to be in the same vertical line as the lower tower 11. It can be located at. Since the angle adjuster 130 of the supporter 100 supports the upper tower 12 lifted by the lifting device 50, the upper tower 12 may be lifted more quickly.

When the upper tower 12 is positioned on the same vertical line as the lower tower 11 by the lifting device 50, as shown in Figures 5 to 6, the upper tower 12 and the lower tower 11 is a binding means ( 300 may be bound to each other.

For example, when the upper tower 12 and the lower tower 11 is located on the same vertical line, the ball portion 311 of the lower tower 11 may be inserted into the center groove 322 of the upper tower 12 and coupled to each other. The hook portion 321 of the upper tower 12 may be inserted into the edge groove 312 of the lower tower 11 and clamped.

As described above, the present invention has an excellent advantage, such as by mounting the upper tower to the lower tower installed on the sea by using the supporter and the lifting device, it is possible to quickly and stably install the wind generator on the sea.

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. I can understand that. For example, those skilled in the art can change the material, size, etc. of each component according to the application field, or combine or replace the embodiments in a form that is not clearly disclosed in the embodiments of the present invention, this is also the present invention It will not go beyond the scope of the. Therefore, the above-described embodiments are to be considered in all respects as illustrative and not restrictive, and such modified embodiments should be included in the technical spirit described in the claims of the present invention.

100: supporter 110: support portion
120: fixed part 130: angle adjustment unit
131: first cylinder 132: second cylinder
133: support piece 300: binding means
311: ball part 312: edge groove part
321: hook portion 322: center groove portion

Claims (7)

delete delete A lower tower installed on the foundation;
An upper tower assembled to an upper end of the lower tower;
A supporter detachably mounted on an upper portion of the lower tower and supporting a lower portion of the upper tower such that a lower end of the upper tower is matched to an upper end of the lower tower; And
Bonding means for fixing the upper end of the lower tower and the lower end of the upper tower,
The binding means
A ball unit provided at an upper center of the lower tower;
An edge groove portion provided at an upper edge portion of the lower tower;
A center groove provided in the lower center of the upper tower to insert the ball portion; And
Offshore wind generator comprising a hook portion provided in the lower edge portion of the upper tower to be clamped to the edge groove. The method of claim 3, wherein
The supporter
A support part surrounding and supporting at least a portion of the upper tower;
A fixing part detachably mounted to an upper side of the lower tower; And
Offshore wind generator comprising an angle adjuster for connecting between the fixed portion and the support so that the support is rotatable by turning the fixed portion. delete The method of claim 4, wherein
The angle adjustment unit
A support piece selectively fixable to the lower tower;
A first cylinder hinged to the back side of the support; And
An offshore wind generator comprising a second cylinder having one end rotatably mounted to the support piece and the other end rotatably connected to the first cylinder. The method of claim 3, wherein
The hook portion
A plurality of spaced apart in the circumferential direction at the lower edge of the upper tower is provided,
The edge groove portion
Offshore wind generator is provided in a plurality of spaced apart in the circumferential direction from the upper edge of the lower tower so that the hook portion is correspondingly inserted.

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