KR20200062936A - Floating structure for preventing rolling - Google Patents

Abstract

Disclosed is a floating structure for preventing rolling. According to one embodiment of the present invention, provided is the floating structure for preventing rolling, which includes: a main body; a plurality of legs which penetrate into the main body in a vertical direction and are liftable in the vertical direction with respect to the main body; and a connecting member connecting the plurality of legs to each other, wherein the connecting member is coupled to the legs to be attachable and detachable.

Description

Floating structure for preventing lateral fluctuation{FLOATING STRUCTURE FOR PREVENTING ROLLING}

The present invention relates to a floating structure for preventing lateral fluctuations.

As demand for eco-friendly energy development increases, power generation using wind power generators is drawing attention worldwide. However, demanding environmental conditions are required to install a wind power generator.

For example, the place where the wind power generator is installed should be a place where a wind speed of a certain level or higher can be guaranteed to obtain a significant rotation of the blade, and the air pollution caused by noise generated when the wind power generator is driven should not be an issue. . In addition, even if these environmental conditions are satisfied, there is a problem that a very large area is required to install a wind power generator.

Recently, interest in offshore wind power generators, which is relatively free from the above constraints, has increased. Offshore wind power generators can be installed in a variety of ways, but are generally installed by dividing parts into several units and making them on land, then moving the assembled units to the sea to assemble them.

A ship that moves a unit of an offshore wind generator manufactured onshore to the sea and installs the offshore wind generator on the sea is generally referred to as a wind turbine installation vessel (WTIV).

The ship with wind generators can be operated in sailing mode and jack-up mode due to the nature of the work. Specifically, the wind power generator installation ship moves in a voyage mode to a position where the offshore wind power generator is to be installed. In the sailing mode, the leg can maintain a state moved upward of the main body to reduce resistance caused by seawater.

Thereafter, the ship with the wind power generator is switched to the jack-up mode, lowers the leg, puts it on the seabed, and then lifts the body along the leg so that the body is spaced a certain distance from the sea level. When the main body reaches a certain position, the wind power generator installation ship stops the movement of the main body and installs the offshore wind power generator, and when the installation is completed, proceeds in the reverse order of the above procedure and moves to the next installation position.

Various types of environmental loads, such as wind, tides, waves, etc., are applied to the legs of the floating structure such as the above-described wind power generator installation vessel, whereby the leg tilts from side to side, that is, lateral fluctuation. .

When the lateral fluctuation phenomenon of the leg becomes severe, the size of the body acting on the leg and the moment due to the load of the leg increases, and in severe cases, the leg may be deformed or damaged, and the entire floating structure may be stranded.

Korean Patent Publication No. 10-2013-143362

One embodiment of the present invention, to provide a floating structure for preventing the lateral fluctuations to prevent the occurrence of lateral fluctuations in the legs of the floating structure, such as a wind turbine installation vessel.

According to an aspect of the invention, the main body; A plurality of legs penetrating the main body in the vertical direction and being movable up and down with respect to the main body; And a connecting member connecting the plurality of legs to each other, wherein the connecting member is detachably coupled to the leg, and a floating structure for preventing swaying may be provided.

Here, the connecting member includes: a first module detachably coupled to a first leg among the plurality of legs; A second module detachably coupled to a second leg among the plurality of legs; And a third module having both ends connected to the first module and the second module, respectively, between the first module and the second module.

In addition, the connection member may be provided at one end of the first module and the second module, and may further include clamp means for detachably coupling the first module or the second module to the leg.

In addition, the clamp means, the first module or the second module is rotatably connected to the angle adjustment is coupled, the clamp body is configured to surround a portion of the rack and the cord of the leg; And a clamp cover rotatably connected to the clamp body and configured to surround the rest of the rack and cord and coupled to the clamp body.

In addition, the connecting member is rotatably provided at the other ends of the first module and the second module, and may further include a locking unit for binding the first module or the second module with the third module.

According to the embodiment according to the present invention, it is possible to prevent the occurrence of lateral fluctuations in the legs by installing a connecting member between the legs in the sailing mode of the floating structure.

1 is a side view schematically showing a floating structure for preventing lateral fluctuation according to an embodiment of the present invention.
2 is an enlarged view showing an enlarged leg and a connecting member in a floating structure for preventing lateral fluctuation according to an embodiment of the present invention.
3 and 4 is a plan view showing a state before and after the installation of the clamp means for connecting the leg and the connecting member in the floating structure for preventing lateral fluctuation according to an embodiment of the present invention.
5 and 6 are side views showing a state before and after the locking portion for selectively binding the first module and the second module to the third module in the floating structure for preventing lateral fluctuation 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 an embodiment of the present invention. The following description is one of several aspects of the present invention that can be patented, and the following description may form part of the detailed description of the present invention.

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

The present invention can be applied to various changes and may include various embodiments, and 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 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 corresponding components are not limited by these 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 is understood that other components may be directly connected to or connected to the other component, but other components may exist in the middle. It should be.

The terms used in the present 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 indicates otherwise.

Hereinafter, a floating structure for preventing lateral fluctuation according to an embodiment of the present invention will be described with reference to the accompanying drawings.

1 and 2, the floating structure 10 for preventing lateral fluctuation according to an embodiment of the present invention may include a main body 100, a leg 200, and a connecting member 300.

The main body 100 means the hull of the floating structure 10, and the floating structure 10 of the present specification may include a wind-up generator installation vessel (WTIV) as well as a jack-up platform. , Hereinafter, a ship with a wind generator will be described as an example.

The main body 100 may be formed of a rectangular flat structure that can be floated at sea, and may be formed in a wider, lower-height, and shorter structure than a typical merchant ship. However, this is only an example, and the main body 100 according to the technical idea of the present invention may have any three-dimensional structure in which the leg 200 and the leg support can be installed.

The main body 100 may be loaded with the loaded material according to the function of the floating structure 10. The main body 100 may be a part of an offshore wind power generator, a blade, a nacelle, a tower, etc., and may be provided with a loading object, and a loading unit for fixing the loading object to the main body 100 may be provided.

Here, the type and loading method of the loaded material is only an example, and the loaded material may be loaded in various forms within a range in which the spirit of the present invention is maintained. For example, the blade and the nacelle may be stacked separately from each other, and when the floating structure 10 is a jack-up platform, the workpiece may be a riser pipe.

Meanwhile, the leg 200 penetrates the main body 100 in the vertical direction and supports the main body 100, and a plurality of legs 200 may be provided to stably support the main body. The number of legs 200 may vary depending on the purpose of use of the floating structure 10.

The leg 200 may be moved to extend downward of the main body 100 in the jack-up mode and fixed to the seabed. In this case, the main body 100 can be supported while supporting the load. The leg 200 may be formed in various forms, such as a columnar, square truss structure, triangular truss structure.

The leg 200 performs the relative motion in the vertical direction in relation to the main body 100 when the floating structure 10 performs the sailing mode or the jack-up mode, wherein the leg 200 is the relative motion It is a concept including both moving in the vertical direction with respect to (100), and moving in the vertical direction with respect to the leg (200).

1 shows the sailing mode of the floating structure 10, in this sailing mode, the leg 200 minimizes the resistance to the sea water, so that the leg 200 can move smoothly to the destination, the upper part of the main body 100 You can maintain the elevated state as much as possible.

However, when the leg 200 rises and sails while protruding high to the top of the main body 100, when various kinds of environmental loads such as wind and waves are applied to the leg 200, the leg 200 is placed in a free end state. A swinging motion, that is, a lateral swinging, which may be inclined to the left or right of the leg 200 may occur.

Accordingly, the connection member 300 may be provided between the plurality of legs 200 to prevent the lateral fluctuation phenomenon in the legs 200.

The connecting member 300 can increase the stability of the leg 200 by connecting the legs 200 to each other only in the sailing mode in which the leg 200 protrudes high to the top of the main body 100. Stability of the leg 200 in the sailing mode can be increased by connecting the spaced free-legged legs 200 to each other so that the legs 200 are in a fixed-end state.

The connecting member 300 may be detachably coupled to the leg 200 so that the legs 200 can be connected to each other only in the sailing mode in which the leg 200 is raised with respect to the main body 100.

The connection member 300 may be provided as a single member integrally formed as a whole as shown in FIG. 1. When the connecting member 300 is made of a single member, it can be lifted by a crane for installation, and maintains a horizontal position between the legs 200 in the lifting state, and both ends of the two legs 200 can be coupled to each other.

Meanwhile, the connecting member 300 may be divided into a plurality of members and coupled to each other as shown in FIG. 2 so as to be more easily and conveniently coupled to the leg 200. Specifically, the connecting member 300 may include a first module 310, a second module 320 and a third module 330.

The first module 310 is configured to be detachably coupled to the first leg 200 among the plurality of legs 200. The second module 320 is configured to be detachably coupled to the second leg 200 disposed in parallel with the first leg 200 among the plurality of legs 200. In addition, the third module 330 is configured such that both ends of the first module 310 and the second module 320 are connected to the first module 310 and the second module 320, respectively.

Thus, for example, when the connecting member 300 composed of the first module 310, the second module 320 and the third module 330 is installed between the two legs 200, the first module 310 After coupling to the first leg 200, the second module 320 is coupled to the second leg 200, and then the third module 330 between the first module 310 and the second module 320 By arranging and fixing the first module 310 and the third module 330 and the second module 320 and the third module 330 to be connected, the installation of the connecting member 300 may be completed.

When the connection member 300 is divided into a plurality of modules as described above, when the use of the connection member 300 is unnecessary (eg, jack-up mode), the loading of the connection member 300 is not only convenient, but also the connection member 300 Even in the case of installing between the legs 200, since the connecting members 300 are partially installed and then each module is connected, installation and disassembly are convenient.

Meanwhile, the connection member 300 may further include clamp means 340 provided at one end of the first module 310 and the second module 320, respectively.

The clamp means 340 is a configuration capable of detachably coupling the first module 310 to the first leg 200, and detachably coupling the second module 320 to the second leg 200, The first module 310 and the second module 320 can be detachably attached to the first leg 200 and the second leg 200 safely in bad weather situations because they are easily and conveniently combined or disassembled to the leg 200 as necessary. have.

3 and 4, the clamping means 340 may include a clamp body 341 and a clamp cover 342.

The clamp body 341 may be rotatably connected to the first module 310 or the second module 320 to be angle-adjustable between the first module 310 or the second module 320. have.

For example, the clamp body 341 may be connected via the first module 310 or the second module 320 and the hinge 341a, and the clamp body 341 is connected to the first module 310 by the hinge 341a. ) Or, since the angle is freely adjusted from the second module 320, installation freedom may be improved when the connection member 300 is installed between the legs 200.

In addition, the clamp body 341 may be formed to surround a portion of the rack and cord 210 provided in the leg 200, as shown in FIG. Accordingly, a curved surface portion suitable for the shape and curvature of the rack and cord 210 may be formed on the inner surface of the clamp body 341.

On the other hand, the clamp cover 342 is rotatably connected to one end to the clamp body 341, the curved surface is configured on the inner surface to surround the rest of the rack and cord 210 when installed on the leg 200, The other end may be detachably coupled to the clamp body 341.

Accordingly, when the clamp means 340 is installed on the leg 200, the clamp cover 342 is opened from the clamp body 341 as shown in FIG. 3 to be arranged to surround the rack and cord 210, As shown in FIG. 4, when the other end is bolted to the clamp body 341 by closing the clamp cover 342, the installation of the legs 200 of the first module 310 and the second module 320 is completed.

5 and 6, the connecting member 300 may further include a locking portion 350.

The locking unit 350 is configured to be rotatably provided at the other ends of the first module 310 and the second module 320, and the first module 310 and the second module 320 are the third module 330 And the third module 330 to be fixed without moving between the first module 310 and the second module 320. For reference, FIGS. 5 and 6 exemplarily show the combination of the first module 310 and the third module 330.

The following structures may be provided such that the first module 310 and the second module 320 are connected to the third module 330 by the locking unit 350.

That is, the first module 310 and the second module 320, each of the receiving groove 311, which can accommodate a portion of the end portion of any one of the adjacent modules at the end of each contact with the third module 330, 331) is formed, the receiving groove (311,331) may be formed in a structure in which a portion of the other end of the adjacent module is inserted.

For example, referring to FIG. 5, the first receiving groove 311 is formed on the upper surface of the first module 310 to accommodate a part of the end of the third module 330, and the first receiving groove 311 is formed. A part of the end of the third module 330 is inserted into, and a third receiving groove 331 is formed on the lower surface of the third module 330 to accommodate a part of the end of the first module 310. A part of the end of the first module 310 may be inserted into the third receiving groove 331.

Accordingly, the first module 310 and the third module 330 have a structure in which a part of each end overlaps, and the locking holes h may be formed to coincide with each other in the vertical direction at the overlapping portion. The locking unit 350 may be inserted into the locking holes h coinciding with each other to connect the first module 310 and the third module 330 to each other.

At this time, the locking unit 350 may be manually rotated by an operator to interconnect the first module 310 and the third module 330 or the second module 320 and the third module 330. However, in an embodiment of the present invention, the locking unit 350 may be implemented to automatically operate, including the touch center 400 and the control unit 500.

As shown in FIG. 5, the touch center 400 may be provided on one side of the first module 310 and the second module 320 in contact with the third module 330. The touch center 400 may detect a contact with the third module 330 and generate a detection signal, for example, a piezoelectric element may be used. The touch center 400 may be installed on the inner surface of the receiving grooves 311 and 321 formed in the first module 310 or the second module 320 to facilitate contact with the third module 330.

In addition, the control unit 500 rotates the locking unit 350 when it is determined that the first module 310 or the second module 320 contacts the third module 330 in response to the detection signal of the touch center 400 I can do it. A driving motor (not shown) controlled by the control unit 500 may be connected to the rotating shaft 351 of the locking unit 350.

Accordingly, as illustrated in FIG. 6, when the first module 310 contacts the third module 330, the locking unit 350 is automatically rotated to the first module 310 and the third module 330, respectively. It can be inserted into the formed locking hole (h) to bind the first module 310 and the third module 330. The process of binding the second module and the third module 330 is the same.

As described above, the present invention has been described using preferred embodiments, but the scope of rights of the present invention is not limited to the specific embodiments described, and any person having ordinary knowledge in the art may be within the scope of the present invention. Substitution and modification of components are possible, and this also belongs to the rights of the present invention.

10: floating structure
100: body 200: leg
210: rack and cord 300: connecting member
310: first module 320: second module
330: third module 340: clamp means
341: clamp body 342: clamp cover
350: locking unit 400: touch sensor
500: control unit

Claims (5)

main body;
A plurality of legs penetrating the main body in the vertical direction and being movable up and down with respect to the main body; And
It includes; a connecting member for connecting a plurality of said legs to each other,
The connecting member is detachably coupled to the leg, floating structure for preventing lateral fluctuations. According to claim 1,
The connecting member,
A first module detachably coupled to a first leg among the plurality of legs;
A second module detachably coupled to a second leg among the plurality of legs; And
A third module having both ends connected to the first module and the second module between the first module and the second module;
Including, floating structure for preventing sway. According to claim 2,
The connecting member,
Provided at one end of the first module and the second module, further comprising a clamp means for detachably coupling the first module or the second module to the leg, the floating structure for preventing sway. According to claim 3,
The clamp means,
A clamp body rotatably connected to the first module or the second module to be angle-adjustable, and configured to surround a portion of the rack's rack and cord; And
A clamp cover rotatably connected to the clamp body and configured to surround the rest of the rack and cord and coupled to the clamp body;
Including, floating structure for preventing sway. According to claim 2,
The connecting member,
The first module and the second module is rotatably provided on the other end, and further comprising a locking portion for binding the first module or the second module with the third module, the floating structure for preventing sway.

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