KR101974384B1 - Floating Marine Structure - Google Patents

Abstract

A floating structure capable of installing not only an offshore wind power generator but also a lower support is provided. The floating structure includes a clamping device installed on a deck; A hammer punch device installed on the deck; And a crane mounted on the deck, the clamping device clamping a lower supporter such that the lower support is positioned on an installation area of a seabed, the crane then hoisting and moving the hammer punch device And the hammering punch device performs a hammering operation to insert the lower support into the seabed.

Description

{Floating Marine Structure}

The present invention relates to a floating structure.

As the demand for environmentally friendly energy development grows, the development using wind power generators is getting popular all over the world. However, installation of wind turbines requires strict environmental conditions. For example, the place where the wind turbine is installed should be a place where a certain level of wind speed can be guaranteed to obtain significant rotation of the blade, and the pollution caused by the noise generated when driving the wind turbine should not be an issue do. Even if these environmental conditions are satisfied, a very large area of space is required to install a wind turbine generator.

In recent years, interest in offshore wind turbines has increased, which is relatively free from the above-mentioned constraints. Offshore wind turbines can be installed in a variety of ways, but generally they are constructed by dividing the components into several units, making them on land, and then transferring the units to sea for assembly.

The ship is a wind turbine installation vessel (WTIV), which transports offshore wind turbine units to the sea and installs offshore wind turbine generators on the sea.

Korean Patent Publication No. 10-1510539

On the other hand, a conventional wind turbine installation line has been used for installing only an offshore wind turbine generator on a lower support after the installation of a lower supporter is completed on the seabed.

A problem to be solved by the present invention is to provide a floating structure capable of installing not only an offshore wind power generator but also a lower support.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

According to an aspect of the present invention, there is provided a floating structure including: a clamping device installed on a deck; A hammer punch device installed on the deck; And a crane mounted on the deck, the clamping device clamping a lower supporter such that the lower support is positioned on an installation area of a seabed, the crane then hoisting and moving the hammer punch device And the hammering punch device performs a hammering operation to insert the lower support into the seabed.

Further comprising a plurality of legs extending through the deck, the clamping device being installed in a space between adjacent legs in an edge region of the deck.

The clamping device includes a foldable body portion and a clamper coupled to the body portion to fix the lower support body.

The hammering punch device includes a head having a docking clamp installed thereon, a body coupled to the head, a coupling portion for coupling with an upper surface of the lower support, and a body having a hammer for hammering an upper surface of the lower support. .

Wherein the body includes a first groove having a first outer diameter and a second groove connected to the first groove and having a second outer diameter smaller than the first outer diameter and the hammer is seated in the second groove, And the engaging portion is seated in the first groove.

A docking jig is installed in the crane, and the docking jig and the docking clamp of the hamming punch device are engaged with each other so that the crane can hoist and move the hamming punch device.

The crane may also be used in the installation of offshore wind turbines.

The details of other embodiments are included in the detailed description and drawings.

1 and 2 are a side view and a plan view, respectively, for explaining a floating structure according to some embodiments of the present invention.
Figs. 3 and 4 are views for explaining the clamping device shown in Figs. 1 and 2. Fig.
FIG. 5 is a view for explaining the hammer punching apparatus shown in FIGS. 1 and 2. FIG.
6 is a view for explaining a docking jig.
7 is a view for explaining the operation of a floating structure according to some embodiments of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

It is to be understood that when an element or layer is referred to as being " on " or " on " of another element or layer, All included. On the other hand, a device being referred to as " directly on " or " directly above " indicates that no other device or layer is interposed in between.

The terms spatially relative, "below", "beneath", "lower", "above", "upper" May be used to readily describe a device or a relationship of components to other devices or components. Spatially relative terms should be understood to include, in addition to the orientation shown in the drawings, terms that include different orientations of the device during use or operation. For example, when inverting an element shown in the figures, an element described as "below" or "beneath" of another element may be placed "above" another element. Thus, the exemplary term " below " can include both downward and upward directions. The elements can also be oriented in different directions, so that spatially relative terms can be interpreted according to orientation.

Although the first, second, etc. are used to describe various elements, components and / or sections, it is needless to say that these elements, components and / or sections are not limited by these terms. These terms are only used to distinguish one element, element or section from another element, element or section. Therefore, it goes without saying that the first element, the first element or the first section mentioned below may be the second element, the second element or the second section within the technical spirit of the present invention.

The terminology used herein is for the purpose of illustrating embodiments and is not intended to be limiting of the present invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. It is noted that the terms "comprises" and / or "comprising" used in the specification are intended to be inclusive in a manner similar to the components, steps, operations, and / Or additions.

Unless defined otherwise, all terms (including technical and scientific terms) used herein may be used in a sense commonly understood by one of ordinary skill in the art to which this invention belongs. Also, commonly used predefined terms are not ideally or excessively interpreted unless explicitly defined otherwise.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. A description thereof will be omitted.

1 and 2 are a side view and a plan view, respectively, for explaining a floating structure according to some embodiments of the present invention.

1 and 2, a floating structure 100 according to some embodiments of the present invention includes a mobile offshore drilling unit (MODU) such as a wind turbine installation vessel (WTIV) (E.g., a drill ship) to which a marine crane is applied. In this specification, for example, a wind turbine installation line is mainly described.

The hull 101 of the floating structure 100 is provided with a plurality of legs 105, a base plate (or a spudcan) 106 and a crane 10, a clamping device 200, a hammer punch device 300 ) And the like.

A plurality of leg wells are installed to penetrate the deck, and legs 105 are installed in each of the plurality of leg wells. Thus, the legs 105 are also installed to penetrate the deck. A base plate 106 is provided at the lower end of the leg 105. The base plate 106 serves to securely support the load of the hull 101 by the seabed surface in contact with the sea floor when the legs 105 descend. In addition, when the floating structure 100 is lifted above the sea level, the load of the hull 101 is uniformly dispersed in the plurality of legs 105. As a result, the plurality of legs 105 stably support the hull 101.

On the other hand, the deck of the hull 101 may be loaded with finished products or components of offshore wind turbines to be installed on the sea, and may be provided with a conveying means such as a crane, a winch, a conveyor or the like for carrying or installing them. Particularly, the deck of the hull 101 is also loaded with a structure (that is, a lower supporter 150) to be installed on the seabed before installing an offshore wind power generator.

Meanwhile, the floating structure 100 may be operated in, for example, a transit mode and a jackup mode.

The floating structure 100 moves to the navigation mode to install the offshore wind turbine or to drilling. In the general navigation mode, the floating structure 100 can move in a state of moving the legs 105 upward in order to reduce the resistance by the legs 105.

The floating structure 100 may be moved to the target position and then accurately positioned to lower the leg 105 using dynamic positioning. The automatic position control can be continued until the legs 105 descend and touch the seabed.

Then, the floating structure 100 switches to the jack-up mode to put the legs 105 on the seabed. When the lower end of the leg 105 touches the seabed, the leg 105 can no longer move downward. In this state, the floating structure 100 moves the hull 101 upward along the legs 105. The load of the hull 101 acts as a force to infiltrate the leg 105 into the seabed so that the leg 105 penetrates into the seabed and is fixed.

As the hull 101 is moved upward along the legs 105, the main body 10 may be spaced apart from the sea surface by a predetermined distance.

The floating structure 100 can be installed in a jack-up state using a crane 10, or can be drilled using a derrick. When the installation work is completed, And can start the operation. The method of switching the floating structure 100 into the jack-up state is merely an example, and various changes can be made within the scope of the present invention.

The clamping device 200 is installed on the deck. In particular, it may be installed in the space between the adjacent legs 105 in the edge regions 201, 202 of the deck. In FIG. 2, the edge regions 201 and 202 are illustratively shown, but the present invention is not limited thereto. It may be installed only in one edge region (for example, 202) as occasion demands. In the deck area of the floating structure 100, the finished product and parts, various equipments, and the lower support 150 for loading and unloading the offshore wind power oscillator are mounted / installed. Therefore, the clamping device 200 can be mounted / In a region that is not disturbed. In addition, since the clamping device 200 must be clamping the lower support 150 so that the lower support 150 can be positioned (fixed) on the installation area of the seabed, the edge areas 201, 202 of the deck Can be installed.

The crane 10 is installed on the deck. The crane 10 is used not only for an offshore wind power generator but also for installing a lower support 150. The crane 10 hoists and moves the hammer punch device 300 to position the hammer punch device 300 on the lower support 150 fixed by the clamping device 200. On the other hand, a separate docking jig (see FIG. 6) for coupling the hammer punch device 300 to the crane 10 may be installed.

The hammer punch device 300 is installed on the deck. The hammering punch device 300 hammers the upper surface of the lower support 150 so that the lower support 150 can be inserted and fixed in the installation area of the seabed. The hamming operation may be hydraulic pressure or power, but is not limited thereto.

To summarize, the clamping device 200 clamps the lower support 150 so that the lower support 150 is located on the installation area of the undersea. Thereafter, the crane 10 hoists and moves the hammer punch device 300 and places it on the lower support 150. Subsequently, the hammer punch device 300 performs a hammering operation to allow the lower support 150 to be inserted / fixed into the installation area of the seabed.

Figs. 3 and 4 are views for explaining the clamping device shown in Figs. 1 and 2. Fig.

3 and 4, the clamping device 200 may include a body portion 230, a clamper 210, a contact portion 215, a wire 260, a winch drum 270, and the like .

The body portion 230 may be fixed to the deck and may be foldable (see A in FIG. 3). Any shape can be used as long as it can be folded. As described above, since a large number of parts and equipment are provided on the deck, it is necessary to reduce the size of the clamping device 200. Also, even if the position where the lower support 150 is to be installed is somewhat spaced from the deck, the body 230 should be stretchable so that the lower support 150 can be easily clamped.

The clamper 210 may be coupled to the body portion 230 to fix the lower support 150. The clamper 210 can be moved, for example, through the hinge 240 (see reference character B in Fig. 3). In addition, a plurality of contact portions 215 may be provided on the inner side of the clamper 210. Depending on the size of the lower support 150, the clamper 210 and the contact 215 can move to hold the lower support 150 firmly.

In addition, the body portion 230 may be connected to the winch drum 270 through the wire 260. The wire 260 can be released and the lower support 150 can be moved to the outside of the hull 101 in accordance with the adjustment of the winch drum 270. That is, the wire 260 and the winch drum 270 can be used to move the lower support 150.

FIG. 5 is a view for explaining the hammer punching apparatus shown in FIGS. 1 and 2. FIG.

5, the hamming punch device 300 may include a head 310, a body 350, a coupling portion 351, a hammer 355, and the like.

The head 310 may be provided with a docking clamp 312. The docking clamp 312 can be coupled to the docking jig (see 190 in Fig. 6).

The body 350 is connected to the head 310. The body 350 may be provided with a coupling portion 351 for coupling with the upper surface of the lower support 150 and a hammer 355 for hammering the upper surface of the lower support 150. Specifically, the body 350 may include a first groove 361 having a first outer diameter, and a second groove 365 having a second outer diameter, which is connected to the first groove and is smaller than the first outer diameter. A hammer 355 is seated in the second groove 365 and a coupling portion 351 is seated in the first groove 361.

A power supply line 370 is connected to the hammer 355. By the power source applied through the power line 370, the hammer 355 can perform the hammering operation.

The coupling portion 351 is, for example, a device for fixing the lower support 150, for example, a clamp. The engaging portion 351 can be moved so as to hold the lower support 150 firmly according to the size of the lower support 150. The coupling portion 351 can be moved by, for example, hydraulic pressure or a power source.

6 is a view for explaining a docking jig.

Referring to FIG. 6, a docking jig 190 may be installed in the crane (see 10 in FIG. 1).

A lug 191 is provided on the upper side of the docking jig 190 and a docking part 195 is provided on the lower side. The docking jig 190 can be coupled with the crane 10 through the lug 191 and coupled with the hammer punch device 300 through the docking part 195. [ The docking portion 195 of the docking jig 190 engages with the docking clamp 312 of the hamming punch device 300.

As a result, the crane 10 can be coupled with the hammer punch device 300 through the docking jig 190. Thus, the crane 10 can hoist and move the hammer punch device 300.

7 is a view for explaining the operation of a floating structure according to some embodiments of the present invention.

Referring to FIG. 7, the clamping device clamps the lower support 150 so that the lower support 150 is fixed on the installation area of the underside. The clamping device is not shown in Fig.

The crane 10 is coupled to the hammer punch device 300 through the docking jig 190. [ The crane 10 hoists and moves the hammer punch device 300 and places it on the fixed lower support 150.

Subsequently, the hammer punch device 300 performs a hammering operation to allow the lower support 150 to be inserted / fixed into the installation area of the seabed. In FIG. 7, the hammering punch device 300 is illustrated as receiving the hydraulic pressure from the hydraulic pressure supply unit 390 and performing the hammering operation. However, the present invention is not limited thereto.

The floating structure 100 according to some embodiments of the present invention can provide the lower support 150 to the seabed through such a method. In addition, after installation of the lower support 150, an offshore wind power generator can be installed successively.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100: Floating structure 150: Lower support
190: Docking jig 200: Clamping device
300: Hamming punch device

Claims (7)

A clamping device installed on the deck;
A hammer punch device installed on the deck; And
And a crane installed on the deck,
Wherein the clamping device clamps a lower supporter so that the lower support is positioned on an installation area of a seabed and then the crane hoists and moves the hammer punch device onto the lower support, The hamming punch device performs a hammering operation to insert the lower support into the seabed,
The hammer punch device
A head provided with a docking clamp,
A body coupled to the head, the body having a coupling portion for coupling with an upper surface of the lower support,
And a body provided with a hammer for hammering an upper surface of the lower support,
The body
A first groove having a first outer diameter,
And a second groove connected to the first groove and having a second outer diameter smaller than the first outer diameter,
Wherein the hammer is seated in the second groove, and the engaging portion is seated in the first groove. The method according to claim 1,
Further comprising a plurality of legs extending through the deck,
Wherein the clamping device is installed in a space between adjacent legs in an edge region of the deck. The clamping device according to claim 2, wherein the clamping device
A foldable structure comprising: a foldable body; and a clamper coupled to the body to secure the lower support. delete delete The method according to claim 1,
The crane is provided with a docking jig,
Wherein the crane is capable of hoisting and moving the hammer punch device by combining the docking jig and the docking clamp of the hamming punch device. The method according to claim 1,
The crane is a floating structure that is also used in the installation of offshore wind turbines.

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