KR101732364B1 - Turret structure for offshore structure and method of manufacturing the same - Google Patents

Turret structure for offshore structure and method of manufacturing the same Download PDF

Info

Publication number
KR101732364B1
KR101732364B1 KR1020150155620A KR20150155620A KR101732364B1 KR 101732364 B1 KR101732364 B1 KR 101732364B1 KR 1020150155620 A KR1020150155620 A KR 1020150155620A KR 20150155620 A KR20150155620 A KR 20150155620A KR 101732364 B1 KR101732364 B1 KR 101732364B1
Authority
KR
South Korea
Prior art keywords
tensile force
support
support line
turret
mooring
Prior art date
Application number
KR1020150155620A
Other languages
Korean (ko)
Inventor
손창수
구창현
김남집
Original Assignee
삼성중공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼성중공업 주식회사 filed Critical 삼성중공업 주식회사
Priority to KR1020150155620A priority Critical patent/KR101732364B1/en
Application granted granted Critical
Publication of KR101732364B1 publication Critical patent/KR101732364B1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
    • B63B21/507—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers with mooring turrets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B9/00—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/448—Floating hydrocarbon production vessels, e.g. Floating Production Storage and Offloading vessels [FPSO]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B2221/00—Methods and means for joining members or elements
    • B63B2221/08—Methods and means for joining members or elements by means of threaded members, e.g. screws, threaded bolts or nuts

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

A turret structure for an offshore structure and a method of making the same are disclosed. A turret structure for an offshore structure according to an embodiment of the present invention includes: a turret body; A mooring connector rotatably coupled to a lower portion of the turret body in a vertical direction and guiding movement of the mooring line; And a support portion for supporting the mooring connector with respect to the turret body, wherein the support portion includes: a support line having one end connected to the mooring connector and the other end having a male threaded portion; A support plate fixed to the turret body and having a through-hole through which the male screw portion penetrates; And a nut member formed with a female screw portion engaged with the ridge portion passing through the through hole.

Description

Technical Field [0001] The present invention relates to a turret structure for an offshore structure and a turret structure for offshore structure,

The present invention relates to a turret structure for an offshore structure and a method of manufacturing the same.

In general, offshore structures such as drilling rigs and FPSOs (floatable crude oil producing and unloading storage facilities) can be loaded with turrets and stored marine resources such as oil, natural gas and the like drilled from the seabed.

The turret 20 may be installed in a vertical opening 11 or a moon pool provided in the hull 10 of the offshore structure 1 as shown in FIG. At this time, the hull 10 can relatively rotate about the turret 20 as a central axis. In this case, since the marine structure 1 can freely rotate around the turret 20 as the center of the hull 10 even if it is flowed by wind, waves or algae in the process of drilling the marine resources, And can be stably supplied through a tube or the like inside the turret. For reference, FIG. 1 is a view showing a marine structure in which a conventional turret is installed.

The turret 20 may be fixed by a mooring line 40 such as a chain to moor the offshore structure 1. At this time, the mooring line 40 may be guided through the mooring connector 30 formed at the lower portion of the turret 20 as shown in FIG.

The mooring connector 30 can collide with and break down on the sea floor when the offshore structure 1 moves through the ocean of shallow water depth. In order to prevent this, the mooring connector 30 can be supported and supported by a supporting portion (not shown) while being folded upward in the turret 20.

This supporting portion is released from the support for the mooring connector 30 when the offshore structure 1 is moored. At this time, there may be a problem that the mooring operation of the offshore structure 1 is not performed smoothly if the supporting state can not be easily released.

SUMMARY OF THE INVENTION An embodiment of the present invention is to provide a turret structure for a marine structure including a support portion that is easily released in a supported state and a method of manufacturing the same.

According to an aspect of the invention, there is provided a turret body comprising: a turret body; A mooring connector rotatably coupled to a lower portion of the turret body in a vertical direction and guiding movement of the mooring line; And a support portion for supporting the mooring connector with respect to the turret body, wherein the support portion includes: a support line having one end connected to the mooring connector and the other end having a male threaded portion; A support plate fixed to the turret body and having a through-hole through which the male screw portion penetrates; And a nut member formed with a female screw portion engaging with the ridge portion penetrating through the through hole. The turret structure for an offshore structure may be provided.

The mooring connector may be supported by the support portion while being inserted into an insertion groove formed in a lower portion of the turret body.

The support line can be cut when the required tensile force is satisfied in a state where the male screw portion and the nut member are screwed together.

The support line is provided with a tensile force that is greater than or equal to the required tensile force through a hydraulic tensioner and the tensile force provided to the support line through the hydraulic tensioner can be maintained through the threaded engagement of the male screw portion and the nut member.

The support line includes a wire rope having one end connected to the mooring connector; And a stud bolt coupled to the other end of the wire rope and having the male thread portion.

According to another aspect of the present invention, there is provided a method of manufacturing a turret structure for an offshore structure, the method comprising: (A) rotating the mooring connector vertically on a lower portion of the turret body; And (B) supporting the mooring connector with respect to the turret body through the support portion. The method for manufacturing a turret structure for an offshore structure can be provided.

The step (B) may include: (a) temporarily screwing the male screw portion penetrating the through hole and the nut member; And (b) the required tensile force is provided to the support line.

The step (b) includes the steps of (b-1) coupling the screw threaded portion and the nut member to a hydraulic tensioner; (B-2) operating the hydraulic tensioner to confirm a tensile force applied to the support line; (B-3) continuously operating the hydraulic tensioner so that the tensile force applied to the support line is equal to or greater than the required tensile force when the tensile force applied to the support line is smaller than the required tensile force; (B-4) stopping the operation of the hydraulic tensioner when the tensile force applied to the support line becomes equal to or greater than the required tensile force; And (b-5) completing the threaded engagement of the other end and the nut member by tightening the nut member.

And (C) installing a cutter on the support line.

The turret structure according to the present embodiment is capable of precisely providing the support line with a tensile force equal to or greater than the tensile force required by the cutter for cutting the support line supporting the mooring connector, So that the supporting state of the supporting portion with respect to the mooring connector can be released easily, so that the mooring operation on the offshore structure can be performed easily and quickly.

1 is a view showing a marine structure in which a conventional turret is installed.
2 is a view showing a part of a turret structure for an offshore structure according to an embodiment of the present invention.
Fig. 3 is a view showing the support portion of Fig. 2 separated. Fig.
4 is a flowchart illustrating a method of manufacturing a turret structure for an offshore structure according to an embodiment of the present invention.
5 to 8 are views for explaining a method of manufacturing a turret structure for an offshore structure according to an embodiment of the present invention.
FIG. 9 is a flowchart for explaining step S220 of FIG. 4 in detail.
10 to 12 are views for explaining a method of providing a tensile force to the support line through the hydraulic tensioner.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Referring to the accompanying drawings, the same or corresponding components are denoted by the same reference numerals, do.

FIG. 2 is a view showing a part of a turret structure for an offshore structure according to an embodiment of the present invention, and FIG. 3 is a view showing a separated part of the support part of FIG. For reference, the upper direction in FIG. 2 represents the upper direction of the turret body.

2 and 3, the turret structure 1000 for an offshore structure according to the present embodiment includes a turret body 1100, a mooring connector 1200, and a support portion 1300, 1). Here, the offshore structure (1 in Fig. 1) may be, but not limited to, a drill ship or FPSO.

The turret body 1100 is inserted into an opening (11 in Fig. 1) formed in the hull (10 in Fig. 1) of an offshore structure (1 in Fig. 1).

For example, the turret body 1100 may be provided in a cylindrical shape, and an opening (11 in Fig. 1) may be formed in the hull (10 in Fig. 1) so that the turret body 1100 can be inserted. However, this is merely an example, and the turret body 1100 can have various shapes, and the opening (11 in Fig. 1) can be formed in the hull (10 in Fig. 1) in such a shape that the turret body 1100 can be inserted.

The turret body 1100 may be rotatably coupled to an offshore structure (1 in Fig. 1).

For example, a bearing (21 in FIG. 1) may be interposed between the inner wall of the opening (11 in FIG. 1) and the outer wall of the turret body 1100. In this case, the hull (10 in Fig. 1) can rotate around the turret body 1100 via a bearing (21 in Fig. 1).

The mooring connector 1200 is rotatably coupled to the lower portion of the turret body 1100 in a vertical direction.

For example, the mooring connector 1200 may be hinged to the lower portion of the turret body 1100 at one end as shown in FIG. In this case, the mooring connector 1200 can rotate in the upward direction of the turret body 1100 when the offshore structure moves. At this time, the mooring connector 1200 may be supported by a support portion 1300 described later in a folded state with respect to the turret body 1100 as shown in FIG.

And the mooring connector 1200 can rotate in a downward direction of the turret body 1100 when the offshore structure is moored at a desired position. At this time. Although the mooring connector 1200 is not shown, the mooring connector 1200 can be freely rotatably supported on the turret body 1100 by releasing the support by the support portion 1300. [

Although the mooring connector 1200 is not shown, a plurality of mooring connectors 1200 may be provided. In this case, a plurality of mooring connectors 1200 may be disposed symmetrically with respect to the center of the telescopic body 1100.

For reference, in the present embodiment, one mooring connector coupled to the turret body and supported by the support portion is illustrated and described as shown in FIG. 2. However, the mooring structure for the plurality of mooring connectors and the support structure by the support portion are the same Therefore, the description of the remaining mooring connectors will be omitted.

Meanwhile, an insertion groove 1110 may be formed in a lower portion of the turret body 1100. The mooring connector 1200 in a folded state can be supported by a support portion 1300 described later in a state of being inserted into the insertion groove 1110. In this case, the mooring connector 1200 in a folded state can be stably supported without flowing due to currents or the like.

The mooring connector 1200 guides movement of the mooring line (40 in Fig. 1).

For example, a mooring line (40 in FIG. 1) such as a chain may be received within the turret body 1100. When the offshore structure is moored, the mooring connector 1200 rotates in a downward direction of the turret body 1100 to guide the mooring line (40 in Fig. 1) to extend from the turret body 1100 toward the undersurface have. At this time, an anchor (not shown) may be coupled to the end of the mooring line (40 in FIG. 1).

The mooring connector 1200 may have a hollow shape through which the mooring line (40 in FIG. 1) can pass.

In this embodiment, the support portion 1300 supports the mooring connector 1200 with respect to the turret body 1100. In other words, the support portion 1300 rotates upward of the turret body 1100 to support the mooring connector 1200 in a folded state.

In this case, when the marine structure is moving or located at a shallow water depth, the mooring connector rotates in the downward direction of the turret body 1100 and protrudes to prevent the mooring connector from colliding with the sea floor or the like and being damaged .

The support portion 1300 according to the present embodiment may include a support line 1310, a support plate 1320, and a nut member 1330.

One end of the support line 1310 may be connected to the mooring connector 1200 and the other end may have a male screw portion 1313. [

In one example, the support line 1310 may include a wire rope 1311 and a stud bolt 1312 as shown in FIG.

One end of the wire rope 1311 may be connected to the mooring connector 1200.

For example, one end of the wire rope 1311 can be hinged to the lug 1220 formed on the outer periphery of the mooring connector 1200 by the shackle 1314. [ In this case, the wire rope 1311 can effectively support the mooring connector 1200 rotating in the upward direction of the turret body 1100 in the process of supporting the mooring connector 1200 by the support portion 1300 .

A stud bolt 1312 may be coupled to the other end of the wire rope 1311.

For example, the wire rope 1311 and the stud bolt 1312 may be pressed and coupled through a pressing member (not shown), but are not limited thereto.

A male screw portion 1313 can be formed on the outer circumference of the stud bolt 1312. The male screw portion 1313 of the stud bolt 1312 can be screwed into a nut member 1330 described later.

The support plate 1320 is fixed to the turret body 1100 and a through hole 1321 through which the male threaded portion 1313 of the support line 1310 passes can be formed.

For example, the support plate 1320 may be fixed to the inner wall of the turret body 1100 by welding in the same manner as in Fig. At this time, the support plate 1320 may be disposed above the hinge 1210 formed in the mooring connector 1200.

The support plate 1320 may support a nut member 1330 screwed to the other end of the support line 1310.

The nut member 1330 may be provided with a female screw portion 1331 engaged with the male screw portion 1313 of the support line 1310 passing through the through hole 1321 of the support plate 1320. [ In this case, the male screw portion 1313 of the support line 1310 can be screwed to the nut member 1330. [

The support portion 1300 is structured such that the support line 1310 is supported by screwing the male screw portion 1313 and the nut member 1330 of the support line 1310 passing through the support plate 1320, The mooring connector 1200 connected to the mating connector 1310 can be supported.

According to the present embodiment, the support line 1310 is configured such that the cutter 1400 that cuts the support line 1310 when the offshore structure is moored, with the male threaded portion 1313 and the nuted member 1330 threaded, When the required tensile force is satisfied. Here, the required tensile force may be determined according to the cutter, the support line, or the like.

In this case, the support line 1310 in which the male screw portion 1313 is screwed with the nut member 1330 may have a tensile force equal to or greater than the required tensile force

In one example, the support line 1310 may be provided with a tensile force greater than or equal to the required tensile force through a hydraulic tensioner (not shown). At this time, the tensile force provided to the support line 1310 through the hydraulic tensioner can be maintained through the threaded engagement of the male threaded portion 1313 and the nuted member 1330 of the support line 1310.

When tension is provided through the hydraulic tensioner, the operator can easily ascertain the tensile force provided to the support line 1310 via a display device (not shown) such as a gauge formed in the hydraulic tensioner. Thus, the operator can confirm the tensile force applied to the support line 1310 and accurately provide a tensile force greater than or equal to the required tensile force with respect to the support line 1310.

The process by which such a hydraulic tensioner provides tension to the support line 1310 will be described later.

Needless to say, the support line 1310 may be provided with a tensile force in various ways.

If the support line 1310 has a tensile force less than the required tensile force, it is not easy to break the support line 1310 when the offshore structure is moored, thus wasting resources and time on the mooring operation of the offshore structure.

The turret structure 1000 according to the present embodiment can accurately perform the cutting operation on the support line 1310 when the offshore structure is moored by accurately providing the support line 1310 with a tensile force equal to or greater than the required tensile force, It is easy to release the supporting state of the supporting portion 1300 with respect to the connector 1200 for the sea structure, so that the mooring work on the offshore structure can be performed easily and quickly.

The cutter 1400 may be installed on the support line 1310 in a state where the male screw portion 1313 of the support line 1310 and the nut member 1330 are screwed together.

In this case, the cutting operation with respect to the support line 1310 is performed more quickly and easily by the cutter 1400 installed beforehand than when the cutter 1400 is moved to the support line 1310 in the process of mooring the offshore structure . Therefore, the mooring operation of the offshore structure can be performed quickly.

Meanwhile, the mooring connector 1200 according to the present embodiment can be prevented from rotating in the upward direction of the turret body 1100 in the process of providing the tensile force.

For example, the mooring connector 1200 is supported on the upper side of the insertion groove 1110 as shown in FIG. 2, and can maintain a horizontal state with the upper side of the insertion groove 1110 in a process of providing a tensile force. Alternatively, the mooring connector 1200 may be supported on a protruding member (not shown) protruding downward from the upper surface of the insertion groove 1110, so that the upper surface of the insertion groove 1110 and a predetermined inclination Lt; / RTI >

FIG. 4 is a flowchart illustrating a method of manufacturing a turret structure for an offshore structure according to an embodiment of the present invention. FIGS. 5 to 8 illustrate a method of manufacturing a turret structure for an offshore structure according to an embodiment of the present invention. FIG.

Hereinafter, a method of manufacturing the turret structure 1000 for an offshore structure according to an embodiment of the present invention will be described with reference to FIGS. 2 and 4 to 8. FIG.

4 and 5, the mooring connector 1200 is rotatably coupled to the lower portion of the turret body 1100 in a vertical direction (S100).

For example, the mooring connector 1200 may be coupled to the lower portion of the turret body 1100 via a hinge 1210. [ At this time, the mooring connector 1200 can be directed to the lower side of the turret body 1100.

2 and 4, the mooring connector 1200 is supported with respect to the turret body 1100 through the support portion 1300 (S200).

6, one end of the support line 1310 may be coupled to the mooring connector 1200, and the support plate 1320 may be fixed to the inner wall of the turret body 1100. As shown in FIG.

7, the mooring connector 1200 may be pulled by the first pulling line 1230 connected to a device such as a crane (not shown) and rotated in the upward direction of the turret body 1100.

The support line 1310 can be pulled toward the support plate 1320 through a second pull line 1315 connected to a device such as a crane (not shown). At this time, the male screw portion 1313 of the support line 1310 can pass through the through hole 1321 of the support plate 1320. [

4 and 8, the male screw portion 1313 and the nut member 1330 of the support line 1310 passing through the through hole 1321 of the support plate 1320 are temporarily screwed together (S210) .

For example, the temporary supporting screw line 1310 may support the mooring connector 1200 in a state of having a predetermined inclination with respect to the upper surface of the insertion groove 1110 as shown in FIG.

At this time, the first traction line 1230 and the second traction line 1315 can be removed.

4, a tensile force greater than or equal to the required tensile force is provided to the support line 1310 (S220).

For example, the support line 1310 may be provided with a tensile force through a hydraulic tensioner (1500 of FIG. 10).

The support line 1310 in which the male screw portion 1313 is screwed with the nut member 1330 in the process of supporting the mooring connector 1200 with respect to the turret body 1100 through the support portion 1300, Has a tensile force that is greater than or equal to the required tensile force required by the cutter 1400 that cuts the support line 1310 when the structure is moored.

Hereinafter, with reference to Figs. 9 and 10 to 12, a process of providing a tensile force equal to or greater than the required tensile force to the support line 1310 according to the present embodiment will be described in detail.

9 is a flow chart for explaining step S220 of FIG. 4 in detail, and FIGS. 10 to 12 are views for explaining a method of providing a tensile force to a support line through a hydraulic tensioner.

9 and 10, the hydraulic tensioner 1500 is coupled to the male screw portion 1313 and the nut member 1330 of the screwed support line 1310 (S221).

 Thereafter, the hydraulic tensioner 1500 is operated to check the tensile force applied to the support line 1310 (S222).

At this time, the operator can confirm the tensile force applied to the support line 1310 through a display device (not shown) such as a gauge formed on the hydraulic tensioner 1500.

9 and 11, when the tensile force applied to the support line 1310 is smaller than the required tensile force as a result of checking the tensile force applied to the support line 1310, the tensile force applied to the support line 1310 is lower than the required tensile force The hydraulic tensioner 1500 is continuously operated so as to be equal to or greater (S223).

For example, the hydraulic tensioner 1500 may provide a tensile force to the support line 1310 by pulling the support line 1310 through the hydraulic pressure provided by the hydraulic line 1510 as shown in FIG.

In this case, the mooring connector 1200 having a predetermined inclination with respect to the upper side of the insertion groove 1110 in FIG. 8 is inserted into the turret body 1100 along the supporting line 1310, And can be positioned horizontally with the upper surface of the insertion groove. At this time, the mooring connector 1200 is supported on the upper side of the insertion groove 1110 and can be prevented from rotating continuously in the upward direction of the turret body 1100.

On the other hand, while still operating the hydraulic tensioner 1500, the operator continues to check the tension applied to the support line 1310.

Thereafter, when the tensile force applied to the support line 1310 is equal to or greater than the required tensile force, the operation of the hydraulic tensioner 1500 is stopped (S224).

The nut member 1330 threadedly engaged with the male threaded portion 1313 of the support line 1310 moves along with the support line 1310 to be spaced apart from the support plate 1320 in the process of providing the tensile force by the hydraulic tensioner 1500. [ . In this case, when the hydraulic tensioner 1500 is removed, the nut member 1330 spaced from the support plate 1320 can move toward the support plate 1320. At this time, the tensile force provided to the support line 1310 can be reduced.

9 and 12, the nut member 1330 is tightened to complete the screwing of the male screw portion 1313 and the nut member 1330 of the support line 1310 (S225). In this case, the tensile force provided to the support line 1310 through the hydraulic tensioner 1500 to be equal to or greater than the required tensile force can be maintained.

For example, the operator can tighten the nut member 1330 through the tightening rod 1520 coupled to the hydraulic tensioner 1500. At this time, the nut member 1330 may be tightened to be supported by the support plate 1320.

After the threaded engagement of the male threaded portion 1313 and the nuted member 1330 of the support line 1310 is completed in this way, the operator can remove the hydraulic tensioner 1500.

On the other hand, the male screw portion 1313 and the nut member 1330 of the temporarily screwed support line 1310 are coupled to the hydraulic tensioner 1500 to check the tensile force applied to the support line 1310 through the hydraulic tensioner 1500 The tensile force applied to the support line 1310 may be greater than or equal to the required tensile force.

At this time, the male screw portion 1313 and the nut member 1330 of the support line 1310 can maintain the tensile force equal to or greater than the required tensile force applied to the support line 1310 in the temporarily screwed state.

In this case, the operator can stop and remove the operation of the hydraulic tensioner 1500.

2 and 4, a method of manufacturing the turret structure 1000 according to the present embodiment may further include a step of mounting the cutter 1400 on the support line 1310 (S300).

For example, the cutter 1400 may be positioned between the mooring connector 1200 and the support plate 1320. In this case, the mooring connector 1200 can rotate in the downward direction of the turret body 1100 by its own weight when the cutter 1400 cuts the support line 1310 during the mooring process of the offshore structure.

The turret structure 1000 according to the present embodiment is configured such that the support portion 1300 supports the mooring connector 1200 with respect to the turret body 1100 before the turret body 1100 is inserted into the opening of the hull, The support portion 1300 can support the mooring connector 1200 with respect to the turret body 1100 while the body 1100 is inserted into the opening of the hull.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, many modifications and changes may be made by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims. The present invention can be variously modified and changed by those skilled in the art, and it is also within the scope of the present invention.

1: Offshore structure 10: Hull
11: opening 20: turret
21: Bearing 40: Mooring line
1000: turret structure 1100: turret body
1110: insertion groove 30, 1200: mooring connector
1210: Hinge 1220: Rug
1230: first pull line 1300:
1310: Support line 1311: Wire rope
1312: Stud bolt 1313: Male thread
1314: shackle 1315: second tow line
1320: Support plate 1321: Through hole
1330: Nut member 1331: Female thread part
1400: Cutter 1500: Hydraulic tensioner
1510: Hydraulic line 1520: Fastening rod

Claims (9)

Turret body;
A mooring connector rotatably coupled to a lower portion of the turret body in a vertical direction and guiding movement of the mooring line; And
And a support portion for supporting the mooring connector with respect to the turret body,
The support portion
A support line having one end connected to the mooring connector and the other end having a male thread portion;
A support plate fixed to the turret body and having a through-hole through which the male screw portion penetrates; And
And a nut member formed with a female threaded portion engaged with the male threaded portion passing through the through hole. The method according to claim 1,
Wherein the mooring connector is supported by the support portion while being inserted into an insertion groove formed in a lower portion of the turret body. The method according to claim 1,
The support line may be formed,
Wherein the nut member is cut when the required tensile force is satisfied in a state where the male screw portion and the nut member are screwed together. The method of claim 3,
Wherein the support line is provided with a tensile force greater than or equal to the required tensile force through a hydraulic tensioner,
Wherein the tension force provided on the support line through the hydraulic tensioner is maintained through the threaded engagement of the male threaded portion and the nuted member. The method according to claim 1,
The support line may be formed,
A wire rope whose one end is connected to the mooring connector; And
And a stud bolt coupled to the other end of the wire rope and having the male thread portion formed therein. A method of manufacturing a turret structure for an offshore structure according to any one of claims 1 to 3,
(A) coupling the mooring connector to the lower portion of the turret body so as to be rotatable in a vertical direction; And
And (B) supporting the mooring connector with respect to the turret body through the support. ≪ RTI ID = 0.0 > 11. < / RTI > The method according to claim 6,
The step (B)
(A) temporarily screwing the male screw portion penetrating the through hole and the nut member; And
And (b) providing a desired tensile force to the support line. 8. The method of claim 7,
The step (b)
(B-1) coupling the screw threaded portion and the nut member to the hydraulic tensioner;
(B-2) operating the hydraulic tensioner to confirm a tensile force applied to the support line;
(B-3) continuously operating the hydraulic tensioner so that the tensile force applied to the support line is equal to or greater than the required tensile force when the tensile force applied to the support line is smaller than the required tensile force;
(B-4) stopping the operation of the hydraulic tensioner when the tensile force applied to the support line becomes equal to or greater than the required tensile force; And
And (b-5) completing the threaded engagement of the male screw portion and the nut member by tightening the nut member. The method according to claim 6,
Further comprising: (C) installing a cutter on the support line.
KR1020150155620A 2015-11-06 2015-11-06 Turret structure for offshore structure and method of manufacturing the same KR101732364B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150155620A KR101732364B1 (en) 2015-11-06 2015-11-06 Turret structure for offshore structure and method of manufacturing the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150155620A KR101732364B1 (en) 2015-11-06 2015-11-06 Turret structure for offshore structure and method of manufacturing the same

Publications (1)

Publication Number Publication Date
KR101732364B1 true KR101732364B1 (en) 2017-05-04

Family

ID=58743084

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150155620A KR101732364B1 (en) 2015-11-06 2015-11-06 Turret structure for offshore structure and method of manufacturing the same

Country Status (1)

Country Link
KR (1) KR101732364B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101994916B1 (en) * 2018-03-30 2019-07-01 삼성중공업 주식회사 Guide apparatus of turret

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200450477Y1 (en) 2010-01-13 2010-10-06 주식회사 비엠테크 Shock-absorbing wire fixing device for rockfall prevention

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200450477Y1 (en) 2010-01-13 2010-10-06 주식회사 비엠테크 Shock-absorbing wire fixing device for rockfall prevention

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101994916B1 (en) * 2018-03-30 2019-07-01 삼성중공업 주식회사 Guide apparatus of turret

Similar Documents

Publication Publication Date Title
US5297632A (en) Method and apparatus for production of subsea hydrocarbon formations
EP2729353B1 (en) Anchor line tensioning method
US8047151B2 (en) System and method for mooring of offshore structures
US7513208B1 (en) Disconnectable mooring system with vessel-mounted tensioning device
US6199500B1 (en) Device by ship for production/test production of oil/gas from a field below seabed level
JPH06500976A (en) Detachable mooring system
US3955521A (en) Tension leg platform with quick release mechanism
US20150259043A1 (en) Systems And Methods For Tensioning Mooring Lines At The Seafloor
EP3251942B1 (en) Mooring pulley tensioning system
US20140205383A1 (en) Jack-up drilling unit with tension legs
AU2013100495A4 (en) Buoy
US6893190B2 (en) Method and structure for connecting a floating structure with rope anchor lines to the seabed
KR101732364B1 (en) Turret structure for offshore structure and method of manufacturing the same
KR101702516B1 (en) Anchoring apparatus and floating offshore structure having the same
US20100098498A1 (en) Anchor system for offshore dynamically positioned drilling platform
KR101229226B1 (en) Apparatus for heaving anchor in vessel
US8690483B2 (en) Method for assembling tendons
KR102400054B1 (en) Spread mooring system of floating production storge offloading constructure and fpso constructure containing the same
US5651640A (en) Complaint platform with parasite mooring through auxiliary vessel
NO20170862A1 (en) A mooring system
KR100441856B1 (en) An equipment to close large opening located in the bottom of shuttle tanker like marine vessel
KR20160023044A (en) Drilling equipment of offshore and install structure of draw work
KR20150069722A (en) Top Compensator Test Device
AU2014100817A4 (en) Buoy
AU2008290598A1 (en) Tension leg connection system

Legal Events

Date Code Title Description
GRNT Written decision to grant