KR101540336B1 - Floating offshore structure - Google Patents

Floating offshore structure Download PDF

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Publication number
KR101540336B1
KR101540336B1 KR1020130118400A KR20130118400A KR101540336B1 KR 101540336 B1 KR101540336 B1 KR 101540336B1 KR 1020130118400 A KR1020130118400 A KR 1020130118400A KR 20130118400 A KR20130118400 A KR 20130118400A KR 101540336 B1 KR101540336 B1 KR 101540336B1
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KR
South Korea
Prior art keywords
mooring
sheave
body
mooring line
formed
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Application number
KR1020130118400A
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Korean (ko)
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KR20150039960A (en
Inventor
원혁빈
김홍수
최정웅
Original Assignee
삼성중공업 주식회사
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Priority to KR1020130118400A priority Critical patent/KR101540336B1/en
Publication of KR20150039960A publication Critical patent/KR20150039960A/en
Application granted granted Critical
Publication of KR101540336B1 publication Critical patent/KR101540336B1/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/04Fastening or guiding equipment for chains, ropes, hawsers, or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices

Abstract

Marine floating structures are provided. The marine floating structure includes a hull; A mooring bay formed on a side wall of the hull and accommodating a mooring line provided from the outside of the hull; A first sheave formed on the inner surface of the mooring bay and directing the mooring line to the top of the hull; Mooring equipment formed on the deck of the hull and fixing one end of the mooring line; And a second sheave formed on the deck of the hull and for guiding the mooring line guided by the first sheave to the mooring equipment.

Description

{FLOATING OFFSHORE STRUCTURE}

The present invention relates to a marine floating structure.

Natural gas or crude oil is transported through land or sea gas pipelines or transported to distant consumption sources in liquefied natural gas or crude oil stored in transit.

If drilling of natural gas or crude oil occurs at sea, the use of Floating Production, Storage and Offloading (FPSO), which is a floating structure for temporary storage or treatment, is frequently used.

FPSO means a facility that receives and collects gas or crude oil from drilling rigs before transporting them through shipping or pipelines. On the other hand, in the case of temporarily storing only gas or crude oil, it is called a floating storage unit (FSU).

The design type of the FPSO can be determined depending on the installation location. In the calm sea area, a relatively simple shape called a Converted oil tanker can be produced. In a deep sea area, it can be manufactured in a relatively complex shape called Purposedbuilt have.

Japanese Laid-Open Patent Publication No. 2011-074739 discloses a pressure regulating roller capable of buffering a force acting between a mounting material and a roller.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a marine floating structure and a marine floating structure for saving a mooring bay space for mooring a ship.

The technical problem of the present invention is not limited to the above-mentioned technical problems and other technical problems which are not mentioned can be clearly understood by the ordinary skilled in the art from the following description.

According to an aspect of the present invention, there is provided a marine floating structure including: a hull; A mooring bay formed in a side wall of the hull and accommodating a mooring line provided from the outside of the hull; A first sheave formed on the inner surface of the mooring bay and directing the mooring line to the top of the hull; Mooring equipment formed on the deck of the hull and fixing one end of the mooring line; And a second sheave formed on the deck of the hull and guiding the mooring line guided by the first sheave to the mooring equipment.

The first sheave may be rotatable about the central axis of the first sheave in the left and right direction according to the movement of the mooring line.

The first sheave or the second sheave may operate in a hydraulic manner.

The other end of the mooring line may be fixed to a ship connected through the mooring line.

According to another aspect of the present invention, there is provided a marine floating structure including: a hull; A mooring bay formed in a side wall of the hull and accommodating a mooring line provided from the outside of the hull; And mooring equipment formed on the deck of the hull and fixing one end of the mooring line, wherein the mooring line can reach the mooring equipment through the mooring bay and the hull.

The marine floating structure may further include a path changing device installed in the hull and changing a path of the moering line provided from the outside of the hull to connect the moering line to the moering device.

Wherein the path changing device comprises: a first changing part for changing the path of the moire ring line to an inner direction of the hull; and a second changing part for changing the path of the mooring line passing through the first changing part in the direction of the mooring equipment And a change unit.

Wherein the first changing portion is formed on the inner surface of the mooring bay and includes a first sheave for guiding the moire ring line to the top of the hull and the second changing portion is formed on the deck of the hull And a second sheave for guiding the mooring line guided by the first sheave to the mooring equipment.

The first sheave may be rotatable about the central axis of the first sheave in the left and right direction according to the movement of the mooring line.

The first sheave or the second sheave may operate in a hydraulic manner.

Other specific details of the invention are included in the detailed description and drawings.

1 is a view for explaining a floating structure of a marine structure according to an embodiment of the present invention.
Fig. 2 is an enlarged view of Fig. 1B. Fig.
Fig. 3 is an enlarged view of Fig. 1C. Fig.
4 is a schematic view for explaining a route changing device used in a marine floating structure according to an embodiment of the present invention.
5 illustrates a sheave used in a marine floating structure according to an embodiment of the present invention.
6 and 7 are views for explaining an operation example of a sheave used in a marine floating structure according to an embodiment of the present invention.

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 being 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. The dimensions and relative sizes of the components shown in the figures may be exaggerated for clarity of description. Like reference numerals refer to like elements throughout the specification and "and / or" include each and every combination of one or more of the mentioned items.

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.

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. The terms " comprises "and / or" comprising "used in the specification do not exclude the presence or addition of one or more other elements in addition to the stated element.

Although the first, second, etc. are used to describe various elements or components, it is needless to say that these elements or components are not limited by these terms. These terms are used only to distinguish one element or component from another. Therefore, it is needless to say that the first element or the constituent element mentioned below may be the second element or constituent element within the technical spirit of the present invention.

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.

FIG. 1 is a view for explaining a floating structure of a marine structure according to an embodiment of the present invention. FIG. 2 is an enlarged view of FIG. 1, and FIG. 3 is an enlarged view of FIG.

1 to 3, a marine floating structure 100 according to an embodiment of the present invention includes a mooring bay 400, a first sheave 410, a mooring equipment 420, and a second sheave 430 ).

Referring to FIG. 1, the marine floating structure 100 may be a floating LNG (Floating LNG, FLNG) structure that can be moored floating on the sea surface. The floating structure 100 according to another exemplary embodiment of the present invention may be implemented as a semi-submersible SEMI, a Tensioned Leg Platform (TLP), a SPAR, a Floating Production, a Storage and Off-loading (FPSO) A drilling rig or the like.

The ship 200 may be an LNG carrier (LNGC). LNG carriers are liquefied natural gas-carrying vessels that can transport liquefied natural gas produced from natural sources. In order to move the LNG stored in the marine floating structure 100 to the marine vessel 200, the marine vessel 200 may be fixed to the marine floating structure 100.

Referring to FIG. 2, the mooring bay 400 is formed on a side wall of the hull 300 and can receive a mooring line 440 provided from the outside of the hull 300. The mooring bay 400 may have inner surfaces 400a, 400b, and 400c. The mooring line 440 serves to secure the ship 200 and the marine floating structure 100 together. One end of the mooring line 440 is fixed to the mooring equipment 420 to be described later and the other end of the mooring line 440 is fixed to a mooring hook 450 installed on the ship 200. [ So that the ship 200 and the marine floating structure 100 can be maintained in a fixed state.

The first sheave 410 may guide the mooring line 440 to the upper portion of the hull 300. The first sheave 410 used in the marine floating structure 100 according to one embodiment of the present invention is formed on the upper surface 400a of the inner surfaces 400a, 400b, 400c of the mooring bay 400 The first sieve 410 used by the marine floating structure 100 according to another embodiment of the present invention is not limited to the inner surfaces 400a, 400b, and 400c of the mooring bay 400 May be formed on the upper surface 400c.

3, the mooring equipment 420 may be formed on the deck 310 of the hull 300 and may fix one end of the mooring line 440. The mooring equipment 420 may include a mooring hook.

The second sheave 430 may guide the mooring line 440 guided by the first sheave 410 to the mooring equipment 420. The mooring line 440 guided by the first sheave 410 may be fixed to the mooring equipment 420 after reaching the second sheave 430 through the hull 300. For example, as shown in FIG. 3, the mooring line 440 guided by the first sheave 410 may penetrate the hull 300 vertically. The second sieve 430 used in the marine floating structure 100 according to an embodiment of the present invention may be formed on the deck 310 of the ship 300.

By arranging the mooring equipment 420 required for the mooring of the marine floating structure 100 and the ship 200 on the deck 310 of the ship 300 in this way, the mooring equipment 420 can be operated or maintained A space for maintenance is secured on the deck 310 of the hull 300 so that the space of the mooring bay 400 for mooring the marine floating structure 100 and the ship 200 can be minimized.

4 is a schematic view for explaining a route changing device used in a marine floating structure according to an embodiment of the present invention.

4, the marine floating structure 100 is installed on the hull 300 and changes the path of the mooring line 440 provided from the outside of the hull 300 so as to connect the mooring line 400 to the mooring line (410). ≪ / RTI > The path changing device includes a first changing unit 415 for changing the path of the moering line 440 to an inner direction of the ship 300 and a second changing unit 415 for changing the path of the mooring line 440 To the direction of the mooring equipment 410. The second changing unit 435 may change the direction of the mooring equipment 410, The first modification 415 used in the marine floating structure 100 according to one embodiment of the present invention is formed on the inner surface of the mooring bay 400 and the mooring line 440 is formed on the upper side of the hull And the second changing portion 435 is formed on the deck 310 of the hull 300 and includes a mooring line 440 guided by the first sheave 410, To the mooring device 412. The second sieve 430 may include a second sieve 430,

5 illustrates a sheave used in a marine floating structure according to an embodiment of the present invention.

5, the sieve 500 may include guide grooves 520 for guiding the mooring line 440. In addition, In one embodiment of the present invention, the mooring line 440 may be a mooring rope 510. The mooring rope 510 fixed to the ship 200 is fixed to the mooring equipment 420 disposed on the deck 310 of the hull 300 through the first sheave 410 and the second sheave 430 The mooring rope 510 may be guided by the respective guide grooves provided in the first sheave 410 and the second sheave 430. [

In some embodiments of the present invention, the first sheave 410 or the second sheave 430 may be operated hydraulically. Thus, a buffering effect against an impact that may be generated according to the motion of the hull 300 can be generated.

Hereinafter, an operation example of the sheave shown in Fig. 5 will be described with reference to Figs. 6 and 7. Fig. 6 and 7 are views for explaining an operation example of a sheave used in a marine floating structure according to an embodiment of the present invention.

6, the sieve 500 positioned at the line aa 'in FIG. 5 has the center axis 530 (that is, the intersection of the lines aa', bb 'and c-c') of the sheave 500, Clockwise 540 and may be located at line bb '. This rotation is used to prevent the mooring rope 510 fixed to the ship 200 from deviating from the sheave 500 when the ship 300 is moved in a direction substantially parallel to the ship 200 will be. 7, the sheave 500 positioned at the line bb 'in FIG. 6 is rotated in the clockwise direction 550 with respect to the central axis 530 of the sheave 500, have.

In the marine floating structure according to an embodiment of the present invention, in particular, the first sheave 410 may be configured to be rotatable. This configuration can prevent the moire ring line 440 connected to the ship 200, that is, the mooring rope 510, from moving away from the first sheave 410 according to the movement of the ship 300.

Conventionally, mooring equipment including a mooring hook is disposed inside a mooring bay 400 for mooring the marine floating structure 100 and the ship 200, and sufficient space for operating or maintenance of the mooring equipment Had to be secured. However, in order to secure the space of the mooring bay 400, for example, the width of the hull of the marine floating structure 100 for safely storing the LNG has to be increased. According to various embodiments of the present invention, by arranging the marine floating structure 100 and the equipment required for the mooring of the vessel 200 on the deck 310 of the hull 300, Ring bay space can be minimized. Thereby, there is an advantage that the width of the hull 300 can be minimized.

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, You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

100: Marine floating structure 200: Ship
300: Hull 310: Deck
400: mooring bays 400a, 400b, 400c: inner surface
410: first sheave 415: first changing portion
420: Mooring equipment 430: Second sheave
435: Second changing part 440: Mooring line
450: mooring hook 500: sheave
510: mooring ropes 520; Guide home
530: center axis

Claims (10)

  1. Body;
    A mooring bay formed in a sidewall of the body, the mooring bay receiving a mooring line provided from the outside of the body;
    A first sheave formed on an inner upper surface of the mooring bay and directing the mooring line to an upper portion of the body;
    A mooring equipment formed on the deck of the body and fixing one end of the mooring line; And
    And a second sheave formed on the deck of the body and guiding the mooring line guided by the first sheave to the mooring equipment.
  2. The method according to claim 1,
    Wherein the first sheave is rotatable left and right about a central axis of the first sheave in accordance with the movement of the mooring line.
  3. delete
  4. The method according to claim 1,
    And the other end of the mooring line is fixed to a ship connected through the mooring line.
  5. Body;
    A mooring bay formed in a sidewall of the body, the mooring bay receiving a mooring line provided from the outside of the body; And
    And mooring equipment formed on the deck of the body for fixing one end of the mooring line,
    Wherein the mooring line extends through the body through a first sheave formed on an inner upper surface of the mooring bay to reach the mooring equipment.
  6. 6. The method of claim 5,
    Further comprising a path changing device mounted on the body and adapted to change the path of the mooring line provided from the outside of the body to connect the mooring line to the mooring equipment.
  7. The method according to claim 6,
    Wherein the path changing device comprises:
    A first changing unit for changing the path of the mooring line to an inner direction of the body,
    And a second changing portion for changing the path of the mooring line passing through the first changing portion to the direction of the mooring equipment.
  8. 8. The method of claim 7,
    Wherein the first changing portion is formed on an inner surface of the mooring bay and includes a first sheave for guiding the mooring line to an upper portion of the body,
    Wherein the second changing portion is formed on the deck of the body and comprises a second sheave for guiding the mooring line guided by the first sheave to the mooring equipment.
  9. 9. The method of claim 8,
    Wherein the first sheave is rotatable left and right about a central axis of the first sheave in accordance with the movement of the mooring line.
  10. delete
KR1020130118400A 2013-10-04 2013-10-04 Floating offshore structure KR101540336B1 (en)

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KR1020130118400A KR101540336B1 (en) 2013-10-04 2013-10-04 Floating offshore structure

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KR1020130118400A KR101540336B1 (en) 2013-10-04 2013-10-04 Floating offshore structure

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KR101540336B1 true KR101540336B1 (en) 2015-07-30

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09136688A (en) * 1995-09-11 1997-05-27 Mitsubishi Heavy Ind Ltd Length variable mooring winch device and method for extending mooring line
US20050072347A1 (en) * 2003-10-03 2005-04-07 Niebur Alvin J. Fairlead with integrated chain stopper
WO2008067406A2 (en) * 2006-11-28 2008-06-05 Transocean Sedco Forex Ventures Limited Through-hull mooring system
KR20100041299A (en) * 2008-10-14 2010-04-22 삼성중공업 주식회사 Drillilng platform

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09136688A (en) * 1995-09-11 1997-05-27 Mitsubishi Heavy Ind Ltd Length variable mooring winch device and method for extending mooring line
US20050072347A1 (en) * 2003-10-03 2005-04-07 Niebur Alvin J. Fairlead with integrated chain stopper
WO2008067406A2 (en) * 2006-11-28 2008-06-05 Transocean Sedco Forex Ventures Limited Through-hull mooring system
KR20100041299A (en) * 2008-10-14 2010-04-22 삼성중공업 주식회사 Drillilng platform

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