KR102474058B1 - Wind turbine installation vessel - Google Patents

Abstract

A wind generator installation vessel is disclosed.
A wind turbine installation vessel according to an embodiment of the present invention includes a hull; Legs installed on the hull to be able to ascend and descend; Elevating units provided to be able to move up and down with respect to the legs; A body portion connected to the lifting portion and having a main crane installed at the top portion; and a guide portion connected to the elevation unit, supporting the body portion, and guiding movement of the body portion with respect to the elevation portion.

Description

Wind turbine installation vessel {WIND TURBINE INSTALLATION VESSEL}

The present invention relates to a wind turbine installed vessel.

As the demand for eco-friendly energy development increases, power generation using wind power generators is in the limelight worldwide. However, demanding environmental conditions are required to install a wind power generator. For example, the place where the wind turbine is installed must be a place where wind speed above a certain level can be guaranteed to obtain meaningful rotation of the blades, and pollution caused by noise generated when the wind turbine is driven must not be an issue. do. In addition, even if these environmental conditions are satisfied, a very large area of space is required to install the wind power generator.

Recently, interest in offshore wind power generators that are relatively free from the above constraints has increased. Offshore wind power generators can be installed in various ways, but are generally installed by dividing parts into several units, manufacturing them on land, and then transferring and assembling the manufactured units to the sea. A ship that moves the offshore wind turbine unit manufactured on land to the sea and installs the offshore wind generator on the sea is generally referred to as a wind turbine installation vessel (WTIV).

Due to the nature of the work, the wind turbine installation vessel can be operated in a transit mode and a jackup mode. Specifically, the wind turbine installation ship moves to a location where the offshore wind generator is to be installed in a sailing mode. In sailing mode, the leg may remain moved upward of the hull to reduce resistance caused by seawater. Thereafter, the wind turbine-installed vessel switches to a jack-up mode, lowers the legs, and drives the hull to the sea floor, and then lifts the hull along the legs so that the hull can be separated from the sea level by a predetermined distance. When the hull reaches a certain position, the wind turbine installation vessel stops moving the hull and performs an operation to install the offshore wind generator, and when the installation is completed, it proceeds in the reverse order of the above order and moves to the next installation location.

At this time, a crane is essentially used to install the offshore wind power generator. In order to maximize the working range of the main crane, the main crane is installed on the main deck of the wind turbine installation ship.

However, in this case, due to the main crane installed on the main deck, there is a problem in that the loading space of the main deck in which units of the offshore wind power generator can be loaded is reduced.

Japanese Unexamined Patent Publication No. 2013-063767 (2013.04.11.)

Embodiments of the present invention are proposed in view of the problems of the prior art as described above, and to provide a wind power generator installation vessel capable of securing a wide loading space for loading units of offshore wind power generators.

According to one aspect of the invention, the hull; Legs installed to be able to go up and down on the hull; a lifting unit provided to be able to go up and down with respect to the leg; a body portion connected to the lifting portion and having a main crane installed thereon; and a guide portion connected to the elevation portion, supporting the body portion, and guiding movement of the body portion with respect to the elevation portion.

In addition, at least one fixing portion rotatably provided inside the body portion and selectively fixing the body portion to the leg may be further included.

In addition, the fixing unit, the first rotation means installed inside the body portion; a pivoting bar having one end coupled to the first pivoting means and rotating with respect to the body so that the other end is selectively exposed to the outside of the body; a second pivoting means coupled to the other end of the pivoting bar; And it may include a fixing member coupled to the second rotation means.

In addition, the fixing member, at least a portion of which is movably inserted in the longitudinal direction of the rotation bar; a hooking part connected to the moving part and selectively caught on the leg; and a movement driving unit installed on the moving unit to provide a driving force to the moving unit.

In addition, the legs are provided in plural pieces, and the elevating unit includes: an elevating main body coupled to elevate and descend with two adjacent legs in a longitudinal direction of the hull or a width direction of the hull among a plurality of the legs; and a lifting driver installed on the lifting body to provide a driving force to the lifting body.

In addition, the guide unit may include a first guide installed on any one of the elevating body and the body; a second guide installed on the other one of the elevating body and the body and matched with the first guide; And it may include a guide driver installed on any one of the first guide and the second guide to provide a driving force to any one of the first guide and the second guide.

In addition, the elevating main body may include an elevating main body guide part coupled to the leg to be able to move up and down; And it is connected to one side of the elevating main body guide portion may include a connecting portion disposed between the two adjacent legs in the longitudinal direction of the hull or the width direction of the hull.

In addition, the elevating main body guide unit includes a first elevating main body guide coupled to the leg to be able to move up and down; a second lifting body guide provided to be drawn in and out of the first lifting body guide; and a draw-in/out driving unit installed on the first lifting body guide and the second lifting body guide and providing a driving force to the second lifting body guide so that the second lifting body guide is drawn in and out of the first lifting body guide. Including, the first lifting body guide and the second lifting body guide may be formed with the first guide or the second guide.

In addition, at least one support unit installed on the hull and selectively supporting the elevation unit may be further included.

The wind power generator installation vessel according to the embodiments of the present invention has an effect that a wide loading space in which units of offshore wind power generators can be loaded can be secured.

1 is a front view showing a wind turbine installation vessel according to an embodiment of the present invention.
FIG. 2 is a view showing an elevation part of the wind turbine installation vessel of FIG. 1 .
3 is a AA cross-sectional view of FIG. 2 .
FIG. 4 is a view showing a fixing part of the wind turbine installation vessel of FIG. 1 .

Hereinafter, configuration and operation according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The following description is one of several aspects of the present invention that may be claimed, and the following description may form part of the detailed description of the present invention.

However, in describing the present invention, detailed descriptions of well-known configurations or functions may be omitted to clarify the present invention.

Since the present invention can make various changes and include various embodiments, specific embodiments will be illustrated in the drawings and described in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and should be understood as including all modifications, equivalents, or substitutes included in the spirit and technical scope of the present invention.

Terms including ordinal numbers, such as first and second, may be used to describe various elements, but the elements are not limited by these terms. These terms are only used to distinguish one component from another.

It is understood that when a component is referred to as being 'connected' or 'coupled' to another component, it may be directly connected or coupled to the other component, but other components may exist in the middle. It should be.

Terms used in this application are only used to describe specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise.

In addition, in this specification, directions such as up, down, and side are described based on the drawings, and it is made clear in advance that they may be expressed differently when the direction of the object is changed.

Hereinafter, a wind turbine installation vessel according to an embodiment of the present invention will be described with reference to the drawings.

1 to 4, a wind power generator installation vessel 1 according to an embodiment of the present invention includes a hull 10, a leg 20, an elevation part 30, a body part 40, a guide part ( 50), at least one fixing part 60, at least one support part 70, and a controller (not shown).

The hull 10 has a main deck capable of loading units of offshore wind power generators, such as foundations, nacelles, blades, and the like, to a location where the offshore wind power generator is to be installed (hereinafter referred to as 'installation location'). It can be switched to a sailing mode for moving and a jack-up mode for installing an offshore wind turbine at an installation location.

The leg 20 maintains a state of being moved upward of the hull 10 in order to reduce resistance by seawater in the sailing mode, and in the jack-up mode, it descends below the sea level and penetrates the sea floor, thereby raising the hull 10 from the sea level. can make it

Leg 20 is installed to be able to go up and down with respect to the hull (10). The leg 20 may move downward of the hull 10 and be fixed to the sea floor, and may be formed in a substantially triangular shape. For example, the leg 20 may include three chords 21 interconnected by a plurality of braces 23 and a rack 22 formed along the length of the chords 21. have.

The elevation part 30 is provided to be able to move up and down with respect to the leg 20 so that the main crane 2 can be moved up and down with respect to the leg 20 .

At this time, the elevating unit 30 is an elevating body 31 that is coupled to two legs 20 adjacent to each other in the longitudinal direction of the hull 10 or in the width direction of the hull 10 among the plurality of legs 20 so as to be able to ascend and descend. ) and a lifting driver 32 installed on the lifting body 31 to provide a driving force to the lifting body 31 .

The elevating main body 31 is connected to one side of the elevating main body guide part 31a and the elevating main body guide part 31a coupled to the leg 20 so as to be able to elevate, so that the longitudinal direction of the hull 10 or the hull 10 It may include a connecting portion (31b) disposed between the two adjacent legs 20 in the width direction.

At this time, the lifting body guide part 31a includes a first lifting body guide 311a coupled to the leg 20 to be able to move up and down, and a second lifting body provided to be drawn in and out of the first lifting body guide 311a. The second lifting main body guide 312a is installed on the guide 312a, the first lifting main body guide 311a and the second lifting main body guide 312a so that the second lifting main body guide 312a is drawn in and out of the first lifting main body guide 311a. It may include a pull-out driver 313a providing a driving force to the elevating main body guide 312a.

The first elevating main body guide 311a may have an accommodating portion in which the second elevating main body guide 312a can be selectively accommodated.

At least a portion of one surface of the first elevating body guide 311a may protrude to provide a movement path for the body 40 . Specifically, a first guide 51a to which the second guide 52 provided on the lower surface of the body portion 40 can be matched may be protruded from the upper surface of the first elevating main body guide 311a.

At least a portion of one surface of the second lifting body guide 312a may protrude to match the first lifting body guide 311a. Specifically, a first guide 51b that can be matched with the first guide 51a provided in the first elevation body guide 311a may protrude from the upper surface of the second elevation body guide 312a.

Meanwhile, the second elevating main body guide 312a may be inserted into the first elevating main body guide 311a or drawn out from the first elevating main body guide 311a. In this embodiment, a case in which the elevating main body 31 is composed of two elevating main body guides 31a and 31b is described as an example, but this is only an example and the spirit of the present invention is not limited thereto. The number of elevating main body guides constituting the elevating main body 31 can be variously changed as needed.

The retracting or pulling operation of the second elevating main body guide 312a relative to the first elevating main body guide 311a is performed by the pull-in and out driving units 313a installed on the side surfaces of the first elevating main body guide 311a and the second elevating main body guide 312a. ) can be performed by

One end of the pull-out driving unit 313a may be coupled to the first lifting body guide 311a and the other end of the pulling-out driving unit 313a may be coupled to the second lifting body guide 312a.

The pull-out driver 313a may include, for example, a hydraulic cylinder operated in a hydraulic or pneumatic manner, and may be controlled by a control unit (not shown). The control unit drives the pull-in/out drive unit 313a so that the second lifting main body guide 312a is drawn into the first lifting main body guide 311a or drawn out from the first lifting main body guide 311a, so that the second lifting main body guide 312a By providing a driving force to the elevating body 31 can be extended or reduced in length.

When the second elevating main body guide 312a is withdrawn from the first elevating main body guide 311a by the pull-in/out drive unit 313a, the second elevating main body guide 312a is located outside the hull 10 in the longitudinal direction, and , The body portion 40 may be moved along the guide portion 50 formed on the second elevating body guide 312a to be exposed to the outside in the longitudinal direction of the hull 10. Thus, the main crane 2 can perform work even at a position exposed to the outside in the longitudinal direction of the hull 10.

On the other hand, as the connecting portion 31b is connected to one side of the elevating main body guide portion 31a and extends in the direction opposite to the direction in which the elevating main body guide portion 31a extends, the connecting portion 31b is of the hull 10. It may be disposed on two adjacent legs 20 in the longitudinal direction or the width direction of the hull 10. Here, the two legs 20 adjacent in the longitudinal direction of the hull 10 or the width direction of the hull 10 correspond to a portion where excessive deformation of the leg 20 occurs during transportation of a unit of an offshore wind power generator, for example. , The elevating body 31 may function as a structural strength member of the leg 20 .

The lifting driver 32 provides a driving force to the lifting body 31 so that the lifting body 31 is lowered in a situation where the use of the main crane 2 is not necessary, so that the lifting body 31 is supported by the jack case 11 make it possible Unlike this, when the use of the main crane 2 is required, the lifting driver 32 may provide a driving force to the lifting body 31 so that the lifting body 31 is lifted.

The lifting driving unit 32 includes an extension part 32a extending from the first lifting body guide 311a and at least one drive installed on the extension part 32a and engaged with the rack 22 of the leg 20. A member 32b may be included.

At this time, the extension portion 32a may extend in a direction opposite to the direction in which the elevating body 31 extends, and then extend to both sides along the longitudinal direction of the leg 20 . Since the contact area between the lifting driver 32 and the leg 20 is widened by the shape of the extension part 32a, the lifting part 30 can be easily moved up and down with respect to the leg 20.

At least one driving member 32b may be rotated in one direction or the other direction under the control of the control unit to raise or lower the elevating body 31 relative to the leg 20 .

The body portion 40 may move the main crane 2 in the longitudinal direction of the hull 10. To this end, the main crane 2 can be rotatably coupled to one end of the body portion 40 via the pivoting means 41, and the other end of the body portion 40 relative to the lifting portion 30. It may be movably coupled in the longitudinal direction of the hull 10.

The guide part 50 may guide the movement of the body part 40 along the longitudinal direction of the elevation part 30 . At this time, the guide unit 50 is installed on the other one of the first guide 51 installed on any one of the elevating body 31 and the body portion 40, the elevating body 31 and the body portion 40, A second guide 52 matched with the first guide 51, and installed on any one of the first guide 51 and the second guide 52, among the first guide 51 and the second guide 52 It may include a guide driver (not shown) that provides a driving force to either one.

The first guides 51a and 51b may serve to provide a movement path for the body 40 . To this end, at least one may be provided in the first elevating main body guide 311a and the second elevating main body guide 312a, and the longitudinal direction of the first elevating main body guide 311a and the length of the second elevating main body guide 312a. It may be formed extending along the direction.

Hereinafter, for convenience of explanation, the two first guides 51a are spaced apart from each other by a predetermined interval in the width direction of the first elevating main body guide 311a, and the two first guides 51b are the second elevating main body guide ( 312a) will be described as an example in the case of being spaced apart at predetermined intervals in the width direction. In addition, the first guide 51a provided on the first elevating main body guide 311a is called the first elevating main body guide side first guide 51a, and the first guide provided on the second elevating main body guide 312a 51b will be referred to as the second elevating main body guide side first guide 51b.

The first guide 51a on the side of the first lifting main body guide and the first guide 51b on the side of the second lifting main body protrude from one surface of the first lifting main body guide 311a and one surface of the second lifting main body guide 312a, respectively. It can be formed and can have a shape that can be mutually matched.

The second guide 52 is coupled to the bottom surface of the body portion 40 and may extend along the longitudinal direction of the body portion 40. It can be matched with the guide-side first guide 51b.

The guide driver provides a driving force to the second guide 52 so that the body 40 can be moved along the first elevating main body guide 311a and the second elevating main body guide 312a. The guide driving unit may be controlled by a control unit.

At least one fixing part 60 may be selectively coupled to the leg 20 to fix the body part 40 to the leg 20 . Accordingly, sagging of the elevating main body 31 that may occur during use of the main crane 2 can be prevented by the fixing part 60 .

At this time, the fixing part 60 is a first rotation means 61 installed inside the body portion 40, one end is coupled to the first rotation means 61, and is rotated with respect to the body portion 40 to the other end A pivoting bar 62 selectively exposed to the outside of the body portion 40, a second pivoting means 63 coupled to the other end of the pivoting bar 62, and a fixing member coupled to the second pivoting means 63 (64) may be included.

At this time, at least a part of the fixing member 64 is connected to the moving part 64a, which is movably inserted in the longitudinal direction of the pivoting bar 62, and the moving part 64a, and is selectively caught on the leg 20. (64b) and a moving driving unit 64c installed on the moving unit 64a to provide a driving force to the moving unit 64a.

Depending on the distance between the hooking part 64b and the leg 20, the degree to which the moving part 64a moves in the longitudinal direction of the pivot bar 62 may be determined by the control unit, and the control unit drives the moving driving unit 64c. The driving force is provided to the moving part 64a so that the moving part 64a moves in the longitudinal direction of the pivot bar 62. The cord 21 or the rack 22 and the brace 23 by the hooking portion (64b) is caught between the body portion 40 can be maintained in a fixed state to the leg (20).

At least one support unit 70 may be installed on the hull 10 to selectively support the elevation unit 30 .

The support unit 70 may support the second lifting body guide 312a by being in contact with a bottom surface of the second lifting body guide 312a drawn forward from the first lifting body guide 311a. In this case, the support unit 70 may include a plurality of support members (not shown) coupled in a telescopic structure, and may be provided so as to be adjustable in length as needed.

In the wind power generator installation ship 1 having the configuration described above, the main crane 2 is not installed on the main deck of the hull 10 as in the prior art, but on the leg 20 installed through the hull 10. As it is installed to be able to go up and down, there is an effect that a loading space in which the units of the offshore wind power generator can be loaded can be secured widely.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art can realize that the present invention can be implemented in other specific forms without changing the technical spirit or essential features. you will be able to understand For example, those skilled in the art may change the material, size, etc. of each component according to the application field, or combine or substitute the embodiments to practice in a form not clearly disclosed in the embodiments of the present invention, but this is also the present invention. is not outside the scope of Therefore, the embodiments described above should not be understood as illustrative and limiting in all respects, and such modified embodiments should be included in the technical idea described in the claims of the present invention.

1: wind generator installation vessel 2: main crane
10: hull 11: jack case
20: leg 21: code
22: rack 23: brace
30: lifting part 31: lifting body
31a: elevating main body guide part 31b: connection part
311a: first elevating main body guide 312a: second elevating main body guide
313a: pull-out drive unit 32: lift drive unit
32a: extension part 32b: driving member
40: body part 41: rotation means
50: guide unit
51a: first guide on the side of the first elevating main body guide
51b: first guide on the side of the second elevating main body guide
52: second guide
60: fixing part 61: first rotation means
62: rotation bar 63: second rotation means
64: fixed member 64a: moving part
64b: hanging part 64c: moving driving part
70: support part

Claims (9)

hull;
Legs installed to be able to go up and down on the hull;
a lifting unit provided to be able to go up and down with respect to the leg;
a body portion connected to the lifting portion and having a main crane installed thereon;
a guide part connected to the elevation part, supporting the body part, and guiding movement of the body part with respect to the elevation part; and
At least one fixing part rotatably provided inside the body part and selectively fixing the body part to the leg;
The fixing part,
a first rotation means installed inside the body;
a pivoting bar having one end coupled to the first pivoting means and rotating with respect to the body so that the other end is selectively exposed to the outside of the body;
a second rotation unit coupled to the other end of the rotation bar; and
Including a fixing member coupled to the second rotation means,
Wind generator installation vessel. delete delete delete According to claim 1,
The legs are provided in plurality,
The lift part,
An elevating body coupled to two legs adjacent to each other in the longitudinal direction of the hull or in the width direction of the hull among the plurality of the legs so as to be able to move up and down; and
Including a lifting driver installed on the lifting body to provide a driving force to the lifting body,
Wind generator installation vessel. According to claim 5,
The guide part,
a first guide installed on one of the elevating body and the body;
a second guide installed on the other one of the elevating body and the body and matched with the first guide; and
Including a guide driver installed on any one of the first guide and the second guide to provide a driving force to any one of the first guide and the second guide,
Wind generator installation vessel. delete delete According to claim 1,
It is installed on the hull and further comprises at least one support part for selectively supporting the elevation part.
Wind generator installation vessel.

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