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 PDFInfo
- 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
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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
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- 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
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
The
The
This supporting portion is released from the support for the
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
The
For example, the
The
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
The
For example, the
And the
Although the
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
The
For example, a mooring line (40 in FIG. 1) such as a chain may be received within the
The
In this embodiment, the
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
The
One end of the
In one example, the
One end of the
For example, one end of the
A
For example, the
A
The
For example, the
The
The
The
According to the present embodiment, the
In this case, the
In one example, the
When tension is provided through the hydraulic tensioner, the operator can easily ascertain the tensile force provided to the
The process by which such a hydraulic tensioner provides tension to the
Needless to say, the
If the
The
The
In this case, the cutting operation with respect to the
Meanwhile, the
For example, the
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
4 and 5, the
For example, the
2 and 4, the
6, one end of the
7, the
The
4 and 8, the
For example, the temporary supporting
At this time, the
4, a tensile force greater than or equal to the required tensile force is provided to the support line 1310 (S220).
For example, the
The
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
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
Thereafter, the
At this time, the operator can confirm the tensile force applied to the
9 and 11, when the tensile force applied to the
For example, the
In this case, the
On the other hand, while still operating the
Thereafter, when the tensile force applied to the
The
9 and 12, the
For example, the operator can tighten the
After the threaded engagement of the male threaded
On the other hand, the
At this time, the
In this case, the operator can stop and remove the operation of the
2 and 4, a method of manufacturing the
For example, the
The
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:
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)
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.
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 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.
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 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) 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 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.
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.
Further comprising: (C) installing a cutter on the support line.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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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 |
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KR101732364B1 true KR101732364B1 (en) | 2017-05-04 |
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KR1020150155620A KR101732364B1 (en) | 2015-11-06 | 2015-11-06 | Turret structure for offshore structure and method of manufacturing the same |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101994916B1 (en) * | 2018-03-30 | 2019-07-01 | 삼성중공업 주식회사 | Guide apparatus of turret |
Citations (1)
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 |
-
2015
- 2015-11-06 KR KR1020150155620A patent/KR101732364B1/en active IP Right Grant
Patent Citations (1)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101994916B1 (en) * | 2018-03-30 | 2019-07-01 | 삼성중공업 주식회사 | Guide apparatus of turret |
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