WO2023090516A1

WO2023090516A1 - Floating offshore structure anchoring device

Info

Publication number: WO2023090516A1
Application number: PCT/KR2021/018329
Authority: WO
Inventors: 방도수
Original assignee: ㈜메르센트
Priority date: 2021-11-18
Filing date: 2021-12-10
Publication date: 2023-05-25
Also published as: KR20230072917A; KR102601484B1

Abstract

The present invention relates to a floating offshore structure anchoring device, and provides a floating offshore structure anchoring device comprising: a movable leg provided at a floating offshore structure to be able to ascend and descend; a post fixed to the seabed and formed to detachably support the movable leg; a leg pin that protrudes from the movable leg; and a pin fixing part that is provided on the post and accommodates the leg pin.

Description

Floating Offshore Structure Fixture

The present invention relates to a floating offshore structure anchoring device.

In general, facilities such as housing pensions and fishing grounds are spaces for people's residence or leisure use, and most of them are structures built on the ground. Since people have lived on land for a long time, there are few cases of development of living and residential spaces for water life such as rivers, lakes, and seas, and the development of new leisure and residential structures is also insufficient compared to land structures.

Demand for new types of housing and leisure life has emerged due to industrial development and changes in consumption and leisure. A typical example is building a pension in a natural space to provide a resting space. As a result, demand for industrial products related to pension construction and management has increased, market demand has also expanded, and the people in the industry related to pension construction and management and related industrial fields have grown together.

A pension classified as a ground structure is built to have a certain area in a natural space. In order to build a pension, at least more green area than the size of the pension must be damaged, and external power is supplied indoors to drive various electrical and electronic devices. Since electric poles leading to the poles have to be built in natural spaces, nature and environment are severely damaged. In addition, there was a problem in that it was exposed to external intrusion and could not guarantee use safety due to crime prevention and protection restrictions.

An offshore structure for improving these problems is disclosed through Korean Patent Publication No. 10-2005-0077908. However, the disclosed offshore structure has a problem in that it is difficult to maintain safety due to deterioration of weather such as strong winds and waves than ground structures, and it is difficult to maintain safety because it is floating on water.

Since then, Korean Patent Registration No. 10-1163730 has disclosed a cruise ship lifting and lowering device that solves these problems. However, the lifting and lowering device of offshore structures such as cruise ships disclosed allows the leg pipe to be lowered to the seabed to safely anchor the vessel without shaking when anchored in the coastal waters. This was a difficult problem to maintain.

[Prior art literature]

[Patent Literature]

(Patent Document 1) Korean Patent Publication No. 10-2005-0077908

(Patent Document 2) Republic of Korea Patent Registration No. 10-1163730

Through an embodiment, the present invention provides a floating offshore structure anchoring device capable of safely staying on the sea despite deteriorating weather conditions or irregularities of the coastal seabed.

In order to solve the above problems, the present invention is provided with a movable leg capable of lifting (昇降) to the floating offshore structure; a post fixed to the seabed and formed to detachably support the movable leg; a leg pin protruding from the movable leg; It is provided on the post and provides a floating offshore structure fixing device comprising a; pin fixing portion for accommodating the leg pin.

The leg pin may be retractable from the movable leg, and the pin fixing part may include a pin through hole into which the leg pin is inserted.

The leg pin extends in a direction crossing the longitudinal direction of the movable leg, and the pin fixing part includes a bracket; and a pin receiving groove penetrating the bracket to accommodate the leg pin, and an upper end of the pin fixing part may be opened so that the leg pin can be accommodated in the pin receiving groove by the lowering of the movable leg. there is.

The leg pin extends in a direction crossing the longitudinal direction of the movable leg, and the movable leg is formed to be rotatable around a virtual axis of rotation extending along the longitudinal direction of the movable leg. A pin receiving groove may be formed on one side of the pin fixing part so that the leg pin is inserted by rotation.

a wire provided in the floating offshore structure; a moving unit rotatably provided on the movable leg to move the wire; It may further include a hooking part protruding from the post so that the wire moving by rotation is caught on the moving part.

The moving unit includes a wire accommodating portion in which a concave portion accommodating the wire is formed; a connecting portion connected to the wire accommodating portion and hinged to the movable leg so that the wire accommodating portion can rotate; and a power transmission unit provided on the movable leg and including a hydraulic cylinder to transmit power to the connection unit through a reciprocating motion.

According to an embodiment of the present invention, an offshore structure can safely stay on the sea despite deteriorating weather conditions or irregularities of the coastal seabed.

1 is a schematic diagram schematically showing a floating offshore structure fixing device according to an embodiment of the present invention.

FIG. 2 is a view illustrating an example of a coupling structure between a movable leg and a post shown in FIG. 1 .

3 is a view for explaining another example of a coupling structure between a movable leg and a post.

4 is a view illustrating another example of a coupling structure between a movable leg and a post.

5 to 7 are views schematically showing a structure for fixing a floating offshore structure using a wire according to an embodiment of the present invention.

The embodiments described below are shown by way of example to aid understanding of the invention, and it should be understood that the present invention may be variously modified and implemented differently from the embodiments described herein. However, in the description of the present invention, if it is determined that a detailed description of a related known function or component may unnecessarily obscure the subject matter of the present invention, the detailed description and detailed illustration thereof will be omitted. In addition, the accompanying drawings are not drawn to an actual scale to aid understanding of the present invention, and the dimensions of some components may be exaggerated.

The first and second terms used in this application may be used to describe various components, but the components should not be limited by the terms. Terms are only used to distinguish one component from another.

In addition, terms used in this application are only used to describe specific embodiments, and are not intended to limit the scope of rights. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as "comprise", "consist of" or "consist of" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, but one or It should be understood that it does not preclude the possibility of the presence or addition of more other features, numbers, steps, operations, components, parts, or combinations thereof.

1 is a schematic diagram schematically showing a floating offshore structure fixing device 1 according to an embodiment of the present invention. Referring to FIG. 1, a floating offshore structure fixing device 1 according to an embodiment of the present invention is a jack-up system and a floating offshore structure such as a barge 20 that can float on the sea. It performs the function of lifting and fixing it to the surface of the sea using the same lifting device.

Floating offshore structures can be manufactured in various forms. In FIG. 1, as an example, a floating offshore structure including a barge 20 and a platform 10 provided on top of the barge 20 is disclosed.

A jack-up system is generally installed on a floating offshore structure and lowers or raises a floating offshore structure by raising or lowering a movable leg (leg 30) formed to move up and down relative to the floating offshore structure. The floating offshore structure descends when the movable leg 30 rises, and rises when the movable leg 30 descends. In FIG. 1, for example, a movable leg 30 formed to move up and down in the leg through hole 11 of the platform 10 and a leg drive unit 12 provided on the platform 10 to lift the movable leg 30, The jack-up system is initiated.

The floating offshore structure fixing device 1 according to an embodiment of the present invention includes a movable leg 30 provided to be able to move up and down on a floating offshore structure, a post 40 supporting the movable leg 30, and a movable leg It includes a leg pin 100 provided in 30 and a pin fixing part 300 provided in post 40.

The movable leg 30 extends in one direction and moves in the vertical direction with respect to the platform 10 while being inserted into the leg through hole 11 in the vertical direction, that is, rises and falls. For example, the outer circumferential surface of the movable leg 30 may be in contact with the leg driving unit 12 so as to be raised and strong by the leg driving unit 12 . When the movable leg 30 descends, it may be supported by the post 40 while being seated on the upper end of the post 40 .

The post 40 extends in one direction and is aligned in the vertical direction. The post 40 is formed to support the movable leg 30 with its lower end positioned on the seabed and upper end positioned above the water surface. The post 40 detachably supports the movable leg 30, for example.

The leg pin 100 protrudes from the movable leg 30 so that the post 40 detachably supports the movable leg 30 and extends in a direction crossing the longitudinal direction of the movable leg 30 .

The pin fixing part 300 is provided at an upper end of the post 40 to accommodate the leg pin 100 so that the post 40 detachably supports the movable leg 30 .

Hereinafter, an example of a coupling structure between the movable leg 30 and the post 40 will be described with reference to FIG. 2 . FIG. 2 is a view illustrating an example of a coupling structure between the movable leg 30 and the post 40 shown in FIG. 1 . Referring to FIG. 2, the leg pin 100 is provided to be withdrawable from the movable leg 30, and for this purpose, a withdrawal unit (not shown) generates power for the withdrawal of the leg pin 100 inside the movable leg 30. ) is provided. These leg pins 100 may be provided singly or may form a pair.

These leg pins 100 are fixed to the movable leg 30. The leg pin 100 may be formed to have a smaller cross-sectional area as it moves away from the movable leg 30 so as to be forcefully fitted into the pin through

holes

311 and 321 to be described later, that is, to be tapered.

The leg pin 100 includes a first leg pin 110 and a second leg pin 120 . The first pin peripheral portion 31, which is the peripheral portion of the movable leg 30 on which the first leg pin 110 is formed, and the second pin peripheral portion 32, which is the peripheral portion of the movable leg 30 on which the second leg pin 120 is formed, Each of the movable legs 30 may be in surface contact with the pin fixing part 300 for stable support.

The pin fixing part 300 is provided with pin through-

holes

311 and 321 into which the leg pin 100 is inserted. The pin fixing part 300 may be formed in a ring shape as shown in FIG. 2, but is not limited thereto. The pin through-

holes

311 and 321 extend in the longitudinal direction of the leg pin 100 and, as described above, may be formed so that the leg pin 100 can be forcibly fitted.

The pin fixing part 300 includes a first pin fixing part 300 in which a first pin through hole 311 is formed and a second pin fixing part 300 in which a second pin through hole 321 is formed. A leg accommodating space 330 in which the movable leg 30 is accommodated is formed between the first pin fixing part 300 and the second pin fixing part 300, and the first pin fixing part 300 and the second pin fixing part 300 may make surface contact with the first pin peripheral portion 31 and the second leg pin 120, respectively.

Let's look at the operation of the floating offshore structure fixing device according to an example of the coupling structure between the movable leg 30 and the post 40.

The first leg pin 110 and the second leg pin 120 maintain a retracted state inside the movable leg 30 when the movable leg 30 descends.

When the movable leg 30 is accommodated in the leg accommodating space 330 formed between the first pin fixing part 300 and the second pin fixing part 300, it stops descending. Then, the first leg pin 110 and the second leg pin 120 are withdrawn from the movable leg 30 and inserted into the first pin through hole 311 and the second pin through hole 321, respectively. Accordingly, The movable leg 30 and the post 40 are stably coupled.

Then, when it is necessary to release the coupling between the movable leg 30 and the post 40, each of the above operations proceeds in reverse order.

Hereinafter, another example of a coupling structure between the movable leg 30 and the post 40 will be described with reference to FIG. 3 . 3 is a view for explaining another example of a coupling structure between the movable leg 30 and the post 40. In an embodiment described differently from an embodiment of the present invention described below, the same reference numerals are used for structures identical to those of the above-described embodiment, and detailed description thereof will be omitted.

Referring to FIG. 3 , in another example of the coupling structure between the movable leg 30 and the post 40, the leg pin 100 is fixed to the movable leg 30 and is not withdrawn. The leg pin 100 extends in a direction crossing the longitudinal direction of the movable leg 30 .

The

pin fixing parts

410 and 420 include

pin receiving grooves

413 and 423 penetrating the

brackets

411, 412, 421 and 422 to accommodate the

brackets

411, 412, 421 and 422 and the leg pin 100. do. Upper ends of the

pin fixing parts

410 and 420 are opened so that the leg pin 100 can be accommodated in the

pin receiving grooves

413 and 423 by the lowering of the movable leg 30 . Accordingly, the

pin receiving grooves

413 and 423 communicate with the upper regions of the

pin fixing parts

410 and 420 .

Specifically, the

pin fixing parts

410 and 420 include a first pin fixing part 410 and a second pin fixing part 420 .

The first pin fixing part 410 includes a first bracket 411 extending in the longitudinal direction of the leg pin 100 and a second bracket 412 spaced apart from the first bracket 411 . As the first pin fixing part 410 is spaced apart from the first bracket 411 and the second bracket 412, a first pin receiving groove 413 with an open upper end is formed.

The second pin fixing part 420 includes a third bracket 421 extending in the longitudinal direction of the leg pin 100 and a fourth bracket 422 spaced apart from the third bracket 421 . As the third bracket 421 and the fourth bracket 422 are spaced apart from each other in the second pin fixing part 420, a second pin receiving groove 423 with an open upper end is formed.

Meanwhile, the first bracket 411 and the third bracket 421 are spaced apart from each other, thereby forming a first leg accommodating space 430, and the second bracket 412 and the fourth bracket 422 are spaced apart from each other. Accordingly, the second leg accommodating space 440 is formed. The single movable leg 30 is simultaneously accommodated in the first leg accommodating space 430 and the second leg accommodating space 440, and the outer circumferential surface of the movable leg 30 is the first bracket 411 and the second bracket 412 ), the third bracket 421 and the fourth bracket 422 are in surface contact, respectively.

Let's look at the operation of the floating offshore structure fixing device according to another example of the coupling structure between the movable leg 30 and the post 40.

As the first leg pin 100 and the second leg pin 100 are fixed to the movable leg 30, they maintain a protruding state when the movable leg 30 descends.

When the movable leg 30 is accommodated in the first leg accommodating space 430 and the second leg accommodating space 440 formed between the first pin fixing part 410 and the second pin fixing part 420, it stops descending.

At this time, the first leg pin 100 and the second leg pin 100 are accommodated in the first pin receiving groove 413 and the second pin receiving groove 423 with open tops. Accordingly, the movable leg 30 and the post 40 are stably coupled.

Hereinafter, another example of a coupling structure between the movable leg 30 and the post 40 will be described with reference to FIG. 4 . 4 is a view for explaining another example of a coupling structure between the movable leg 30 and the post 40.

4, in another example of the coupling structure between the movable leg 30 and the post 40, the leg pin 100 is fixed to the movable leg 30 and is not withdrawn, and the movable leg 30 moves up and down and rotate on its own

The leg pin 100 extends in a direction crossing the longitudinal direction of the movable leg 30, and the movable leg 30 rotates around a virtual rotation axis extending along the longitudinal direction of the movable leg 30, that is, , is formed to be able to rotate. Pin receiving

grooves

513 and 523 are formed on one side of the

pin fixing parts

510 and 520 so that the leg pin 100 is inserted by the rotation of the movable leg 30 .

Specifically, the

pin fixing parts

510 and 520 include a first pin fixing part 510 and a second pin fixing part 520 .

The first pin fixing part 510 is, for example, a first vertical bracket 511 extending in the longitudinal direction of the post 40 and a first horizontal bracket extending in an axial direction intersecting the longitudinal axis of the post 40 ( 512). A first pin receiving groove 513 is formed between the first vertical bracket 511 and the first horizontal bracket 512 .

As another example, the first pin fixing part 510 protrudes from the upper end of the post 40 in the longitudinal direction of the post 40, and the first pin receiving groove is recessed in the tangential direction of the rotational surface of the first leg pin 110 ( 513) can be formed.

The second pin fixing part 520 is, for example, a second vertical bracket 521 extending in the longitudinal direction of the post 40 and a second horizontal bracket extending in an axial direction crossing the longitudinal axis of the post 40 ( 522). A second pin receiving groove 523 is formed between the second vertical bracket 521 and the second horizontal bracket 522 .

As another example, the second pin fixing part 520 protrudes from the upper end of the post 40 in the longitudinal direction of the post 40, and is inserted in the tangential direction of the rotational surface of the second leg pin 120. The second pin receiving groove ( 523) can be formed.

The direction in which the first pin receiving groove 513 is viewed and the direction in which the second pin receiving groove 523 is viewed are opposite to each other.

Meanwhile, a leg accommodating space 530 is formed between the first pin fixing part 510 and the second pin fixing part 520 . When the movable leg 30 is accommodated in the leg accommodating space 530 , the first pin fixing part 510 and the second pin fixing part 520 come into contact with the pin

peripheral parts

31 and 32 of the movable leg 30 . However, in this case, the cross section of the movable leg 30 may be circular.

As the first leg pin 110 and the second leg pin 120 are fixed to the movable leg 30, they maintain a protruding state when the movable leg 30 descends. At this time, the first leg pin 110 and the second leg pin 120 are located side by side on the first axis L1.

When the movable leg 30 is accommodated in the leg accommodating space 530, the movable leg 30 has a first leg pin 110 and a second leg pin 120 located parallel to the first axis L1. It rotates to be positioned parallel to the second axis L2 intersecting the axis L1. 4, the movable leg 30 rotates clockwise.

By the rotation of the movable leg 30, the first leg pin 110 and the second leg pin 120 are accommodated in the first pin receiving groove 513 and the second pin receiving groove 523, respectively. Accordingly, the movable leg 30 and the post 40 are stably coupled.

Hereinafter, a structure for fixing a floating offshore structure using a wire R1 according to an embodiment of the present invention will be described with reference to FIGS. 5 to 7 . 5 to 7 are views schematically showing a structure for fixing a floating offshore structure using a wire R1 according to an embodiment of the present invention.

5 to 7, a structure for fixing a floating offshore structure using a wire R1 according to an embodiment of the present invention moves the wire R1 and the wire R1 provided in the floating offshore structure. A moving part 600 rotatably provided on the movable leg 30 so as to make the movable leg 30, and a hooking part R2 protruding from the post 40 so that the wire R1 moving by rotation is caught on the moving part 600 includes

One end of the wire R1 is connected to the offshore structure, and a circular knot is formed at the other end so that the other end can be caught on the hooking part R2.

The movable part 600 is a movable leg connected to the wire accommodating part 610 where the concave part 611 accommodating the wire R1 is formed and the wire accommodating part 610 so that the wire accommodating part 610 can rotate. It is provided on the connecting portion 620 hinged to (30) and the movable leg 30 and includes a power transmission unit 630 including a hydraulic cylinder to transmit power to the connecting portion 620 through reciprocating motion.

The hooking portion R2 is provided at the upper end of the post 40 and is formed in a substantially 'L' shape. Accordingly, the ring-shaped knot of the wire R1 may be caught on the hooking portion R2.

Hereinafter, an operation of a structure for fixing a floating offshore structure using a wire R1 according to an embodiment of the present invention will be described.

First, after placing the wire R1 in the concave portion 611 of the wire receiving portion 610, the power transmission portion 630 is extended to rotate the connecting portion 620 hinged to the movable leg 30 forward. Accordingly, the wire R1 moves forward.

After the movable leg 30 descends and is seated at the upper end of the post 40, when the leg pins 110 and 120 and the

pin fixing parts

310 and 320 are mutually coupled, the ring-shaped knot of the wire R1 is the hooking part. It is located in front of (R2).

At this time, when the power transmission unit 630 is contracted and the connection unit 620 is rotated backward, the knot of the wire R1 is caught on the hooking unit.

In the floating offshore structure, the wire R1 is pulled to strengthen the coupling between the offshore structure and the post 40.

Thereafter, in order to release or loosen the coupling between the reinforced offshore structure and the post 40, each of the above operations proceeds in reverse order.

As described above, although the present invention has been described by the limited embodiments and drawings, the present invention is not limited thereto, and those skilled in the art to which the present invention pertains will follow the technical spirit of the present invention and Of course, various modifications and variations are possible within the equivalent scope of the claims to be described in.

[Description of code]

1: Floating Offshore Structure Fixture

10: platform

20: barge

30: movable leg

40: Post

100: leg pin

300: pin fixing part

Claims

A movable leg provided to be able to move up and down on a floating offshore structure;

a post fixed to the seabed and formed to detachably support the movable leg;

a leg pin protruding from the movable leg; and

Floating offshore structure fixing device including a; pin fixing part provided in the post and accommodating the leg pin.
According to claim 1,

The leg pin is provided to be withdrawable from the movable leg,

The floating offshore structure anchoring device, characterized in that the pin fixing portion is provided with a pin through hole into which the leg pin is inserted.
According to claim 1,

The leg pin extends in a direction crossing the longitudinal direction of the movable leg,

The pin fixing portion is a bracket; And a pin receiving groove penetrating the bracket to accommodate the leg pin; includes,

The floating offshore structure fixing device, characterized in that the upper end of the pin fixing portion is opened so that the leg pin can be accommodated in the pin receiving groove by the lowering of the movable leg.
According to claim 1,

The leg pin extends in a direction crossing the longitudinal direction of the movable leg,

The movable leg is formed to be rotatable around a virtual rotation axis extending along the longitudinal direction of the movable leg,

Floating offshore structure fixing device, characterized in that a pin receiving groove is formed on one side of the pin fixing portion so that the leg pin is inserted by rotation of the movable leg.
According to claim 1,

a wire provided in the floating offshore structure;

a moving unit rotatably provided on the movable leg to move the wire;

The floating offshore structure anchoring device further comprising a; hooking portion protruding from the post so that the wire moving by rotation is caught on the moving portion.
According to claim 5,

the moving part

a wire accommodating portion in which a concave portion accommodating the wire is formed;

a connecting portion connected to the wire accommodating portion and hinged to the movable leg so that the wire accommodating portion can rotate; and

A floating offshore structure anchoring device comprising a; power transmission unit provided on the movable leg and including a hydraulic cylinder to transmit power to the connection unit through reciprocating motion.