CN113799945A - FLNG upper portion module disjunctor buttress structure - Google Patents
FLNG upper portion module disjunctor buttress structure Download PDFInfo
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- CN113799945A CN113799945A CN202111158522.0A CN202111158522A CN113799945A CN 113799945 A CN113799945 A CN 113799945A CN 202111158522 A CN202111158522 A CN 202111158522A CN 113799945 A CN113799945 A CN 113799945A
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- 229910000831 Steel Inorganic materials 0.000 claims description 29
- 239000010959 steel Substances 0.000 claims description 29
- 230000003014 reinforcing effect Effects 0.000 claims description 16
- 238000003466 welding Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 230000000192 social effect Effects 0.000 abstract description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 238000010276 construction Methods 0.000 description 4
- 239000003345 natural gas Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010205 computational analysis Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000003949 liquefied natural gas Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C5/00—Equipment usable both on slipways and in dry docks
- B63C5/02—Stagings; Scaffolding; Shores or struts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/60—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by the use of specific tools or equipment; characterised by automation, e.g. use of robots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C5/00—Equipment usable both on slipways and in dry docks
- B63C5/02—Stagings; Scaffolding; Shores or struts
- B63C2005/022—Shores or struts, e.g. individual oblique support elements for stabilizing hulls in dry-docks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Robotics (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to an FLNG upper module conjoined buttress structure, and belongs to the technical field of ship design and manufacture. The device comprises four buttress structures arranged at the bottom of an upper module, and the buttress structures are respectively arranged as a first buttress structure, a second buttress structure, a third buttress structure and a fourth buttress structure; the buttress structure comprises a bottom surface, a top surface and a side surface surrounded by four continuous curved surfaces at the periphery; the first buttress structure and the second buttress structure are connected together and arranged on the side, and the third buttress structure and the fourth buttress structure are connected together and arranged at the position close to the center line of the ship width. The conjoined buttress structure provided by the invention has a simple structure, is easy to build, and saves the manufacturing cost; the conjoined buttress structure can reduce the distance between the modules, is beneficial to the flexible arrangement of the upper modules, increases the cost yield, and can generate better economic and social effects in the actual project application and the pushing process.
Description
Technical Field
The invention relates to an FLNG upper module conjoined buttress structure, and belongs to the technical field of ship design and manufacture.
Background
Along with the gradual reduction of land natural Gas resources, natural Gas resources are gradually exploited to the sea from the land by the eyes of countries in the world, and the FLNG (Floating Liquefied natural Gas production storage and unloading device) is one of main natural Gas exploitation tools, so that the FLNG is widely applied to various countries for exploiting natural Gas at the sea due to the advantages of low investment, no influence of sea conditions at the sea bottom, short construction period, guaranteed construction quality, convenience in maintenance, flexible development of new modules, reusability and the like. With the growing maturity of FLNG construction technology, FLNGs in various countries around the world are advancing towards large tonnage, large-scale and complicated upper module. The buttress structure is particularly important in the FLNG design and construction process.
According to the functional requirements of FLNG, a layer of process module platform is arranged on a main deck of the FLNG, and production process, inert gas, thermal station, metering, power station, transformer and control room modules are arranged. For any FLNG, the connection (namely, the buttress structure) of each modular platform structure and the main hull of the FLNG is a very critical technology, and whether the connection is reliable or not directly influences the production flow of the whole FLNG. The problem that how to arrange modules completely and flexibly under the limited deck area is more concerned by the modules with large sizes and large numbers.
The distance between the traditional FLNG module buttress is about 5m, which also means that the upper module and the module have about 5m of clearance, and this clearance frosts the deck area snow that originally just is not enough, has caused the waste of main deck area, is unfavorable for the nimble of upper module to be arranged. At present, the traditional buttress arrangement is that a single buttress is arranged, the distance between the buttress and the buttress is far, the distance between a single module and a module is large, the middle gap causes the waste of the area of a main deck, and the increasing number of upper modules cannot be met. Accordingly, it is desirable to provide a buttress structure that facilitates flexible arrangement of upper modules to address some of the problems associated with the prior art.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and obtain a buttress structure which can reduce the distance between modules and is beneficial to the flexible arrangement of the upper modules.
In order to solve the above problems, the technical solution adopted by the present invention is to provide an FLNG upper module conjoined buttress structure, which is arranged between an upper module and a deck, and comprises four buttress structures arranged at the bottom of the upper module, and the four buttress structures are respectively arranged as a first buttress structure, a second buttress structure, a third buttress structure and a fourth buttress structure; the buttress structure comprises a bottom surface, a top surface and a side surface surrounded by four continuous curved surfaces at the periphery; the side is located together to first buttress structure and second buttress structure interconnect, third buttress structure and fourth buttress structure interconnect locate the position that is close to the ship width central line together.
Preferably, the side surface of the buttress structure is formed by welding and connecting four curved steel plates.
Preferably, the radius of the curved surface of the curved steel plate is set to be 4-6 m.
Preferably, the first buttress structure and the second buttress structure are provided with a steel plate shared along the width direction of the ship; and the third buttress structure and the fourth buttress structure are provided with one steel plate shared along the width direction of the ship.
Preferably, the buttress structure is arranged above the strong cross beams and the longitudinal girders below the main deck.
Preferably, the length and width of the pier structure top surface are set to 1.7-2.5 m.
Preferably, the length and width of the bottom surface of the buttress structure are set to be 2.6-3.6 m.
Preferably, the height of the buttress structure is set to be 2.5-3 m.
Preferably, horizontal reinforcing ribs are arranged inside the buttress structure; and vertical reinforcing ribs are arranged inside the buttress structure.
Preferably, the top surface of the buttress structure is provided with a thickened steel plate, and the plate thickness is 80-100 mm.
Compared with the prior art, the invention has the following beneficial effects:
1) the conjoined buttress structure of the invention has simple and clear structure, is easy to build in shipyards, and saves the weight of steel, thereby saving the cost for shipyards. 2) Due to the connected buttress structure, the distance between the modules can be reduced, flexible arrangement of the upper modules is facilitated, and the cost yield is increased. 3) Under the condition that the area of the main deck is fixed, the upper module can be arranged by about 30% more by using the conjoined buttress structure of the invention than other types of buttress structures, and better economic and social effects can be generated in the actual project application and the pushing process.
Drawings
Fig. 1 is a layout of four buttress configurations of the present invention on the deck level of the FLNG main hull.
FIG. 2 is a section A-A of FIG. 1, and R is the radius of the four buttress structured side panels.
Fig. 3 is a section B-B of fig. 2, which is the top of the four pier structure.
Fig. 4 is a section C-C in fig. 1.
Fig. 5 is a section T-1 in fig. 3.
Fig. 6 is a section T-2 in fig. 3.
Fig. 7 is a section L-1 in fig. 3.
Fig. 8 is a section L-2 in fig. 3.
Fig. 9 is a section H-1 in fig. 7 and 8.
Reference numerals: 1. a first buttress structure; 2. a second buttress structure; 3. a third buttress structure; 4. a fourth buttress structure; 5. one steel plate along the width direction of the ship; 6. horizontal reinforcing ribs; 7. and (5) vertical reinforcing ribs.
Detailed Description
In order to make the invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings:
as shown in fig. 1-9, the present invention provides an FLNG upper module conjoined buttress structure, which is arranged between an upper module and a deck, and comprises four buttress structures arranged at the bottom of the upper module, and the four buttress structures are respectively arranged as a first buttress structure 1, a second buttress structure 2, a third buttress structure 3 and a fourth buttress structure 4; the buttress structure comprises a bottom surface, a top surface and a side surface surrounded by four continuous curved surfaces at the periphery; the first buttress structure 1 and the second buttress structure 2 are connected together and arranged on the side, and the third buttress structure 3 and the fourth buttress structure 4 are connected together and arranged at the position close to the center line of the ship width; the side surface of the buttress structure is formed by welding and connecting four curved steel plates. The radius of the curved surface of the curved steel plate is set to be 4-6 m. The first buttress structure 1 and the second buttress structure 2 are provided with a steel plate 5 shared along the ship width direction; the third buttress structure 3 and the fourth buttress structure 4 are provided with one steel plate 5 in common in the width direction of the ship. The buttress structure is arranged above the strong cross beam and the longitudinal girder below the main deck. The length and the width of the top surface of the buttress structure are set to be 1.7-2.5 m. The length and the width of the bottom surface of the buttress structure are set to be 2.6-3.6 m. The height of the buttress structure is set to be 2.5-3 m. A horizontal reinforcing rib 6 is arranged inside the buttress structure; the interior of the buttress structure is provided with vertical reinforcing ribs 7. The top surface of the buttress structure is provided with a thickened steel plate; the thickness of the plate is 80-100 mm.
The invention aims to overcome the defects in the prior art and provide a FLNG upper module conjoined buttress structure, which reduces the distance between modules and is beneficial to the flexible arrangement of the upper modules. The technical scheme adopted by the invention is to provide an FLNG upper module conjoined buttress structure, which comprises a first buttress structure 1, a second buttress structure 2, a third buttress structure 3 and a fourth buttress structure 4 which are arranged at four angular points at the bottom of an upper module, wherein the first buttress structure 1 and the second buttress structure 2 are mutually connected together, and the third buttress structure 3 and the fourth buttress structure 4 are mutually connected together. The first buttress structure 1 and the second buttress structure 2 are disposed on the side, and the third buttress structure 3 and the fourth buttress structure 4 are disposed near the center line of the ship width. The side surfaces of the four buttress structures are all formed by welding curved steel plates, the overall height of the buttress structure is 2.5-3m, the size of the top surface is 1.7-2.5m, and the size of the bottom surface is 2.6-3.6 m. The side surfaces of the first buttress structure 1 and the second buttress structure 2 are all composed of four steel plates, the steel plates on the four surfaces are curved surfaces, the radius R of the curved surfaces is 4-6m, and the first buttress structure 1 and the second buttress structure 2 share one steel plate 5 along the width direction of the ship. The side surfaces of the third buttress structure 3 and the fourth buttress structure 4 are also composed of four steel plates, the four steel plates are curved surfaces, the radius R of the curved surface is 4-6m, and the third buttress structure 3 and the fourth buttress structure 4 share one steel plate 5 along the width direction of the ship. The length and the width of the top surface of each of the four buttress structures are 1.7-2.5m, and the length and the width of the lower bottom surface of each buttress structure are 2.6-3.6 m. And horizontal reinforcing ribs 6 and vertical reinforcing ribs 7 are arranged in the buttress structure. The top surfaces of the buttress structures are specially thickened plates.
Examples
The method comprises the following specific implementation steps:
referring to fig. 1, the integral buttress structure of the present invention is composed of four buttress structures, wherein the first buttress structure 1, the second buttress structure 2, the third buttress structure 3 and the fourth buttress structure 4 are connected together by a plate along the width direction of the ship.
1. With reference to fig. 1-3, the location of four buttress structures on the main hull deck surface is determined. The first buttress structure 1 and the second buttress structure 2 of the four buttress structures are disposed on the side, and the third buttress structure 3 and the fourth buttress structure 4 are disposed at positions close to the center line of the ship width. The module buttress is used as a connecting interface of the main hull and the upper production module, and the bottoms of the four buttress structures are aligned with the strong cross beams and the longitudinal girders below the main deck so as to transfer the weight of the upper module to the main hull structure.
2. The dimensions of the four buttress structures are determined. The side surfaces of the four buttress structures are all structures formed by welding curved steel plates, the steel plates on the four surfaces are curved surfaces, and the radius R of the curved surfaces is 4-6 m. The overall height of the four buttress structures is 2.5-3m, the size of the top surface is 1.7-2.5m, and the size of the bottom surface is 2.6-3.6 m.
3. The lower substructure is determined to share one steel plate 5 in the width direction of the ship. Since a part of the first pier structure 1 and the second pier structure 2 are connected together, the lower half portion of the common steel plate 5 is arranged along the ship width direction, and the upper half portions of the first pier structure 1 and the second pier structure 2 are separated from each other and have no common steel plate surface. The integral arrangement method of the third buttress structure 3 and the fourth buttress structure 4 is similar to the integral arrangement of the first buttress structure 1 and the second buttress structure 2.
4. And vertical reinforcing ribs of four buttress structures are arranged. Referring to fig. 5 and 6, vertical reinforcing ribs 7 are provided at regular intervals inside the four pier structures.
5. Four horizontal reinforcing ribs 6 of the buttress structure are arranged. Referring to fig. 9, horizontal ring reinforcing ribs 6 are provided at regular intervals inside the four buttress structures. The vertical reinforcing ribs 7 and the horizontal ring reinforcing ribs 6 support and bear force mutually, and the strength of the four buttress structures is ensured.
6. The top surfaces of the first buttress structure 1, the second buttress structure 2, the third buttress structure 3 and the fourth buttress structure 4 are specially thickened plates, and the plate thickness is 80-100 mm.
Embodiments of the present invention perform a great deal of comprehensive computational analysis to analyze the structural rationality and reliability. Analytical techniques applied in the development of the present invention are: the finite element analysis technology, basic structure standard calculation, local strength calculation and the like of the standardized cabin section are met. .
While the invention has been described with respect to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Those skilled in the art can make various changes, modifications and equivalent arrangements, which are equivalent to the embodiments of the present invention, without departing from the spirit and scope of the present invention, and which may be made by utilizing the techniques disclosed above; meanwhile, any changes, modifications and variations of the above-described embodiments, which are equivalent to those of the technical spirit of the present invention, are within the scope of the technical solution of the present invention.
Claims (10)
1. The utility model provides a FLNG upper portion module disjunctor buttress structure locates between upper portion module and the deck, its characterized in that: the device comprises four buttress structures arranged at the bottom of an upper module, and the buttress structures are respectively arranged as a first buttress structure, a second buttress structure, a third buttress structure and a fourth buttress structure; the buttress structure comprises a bottom surface, a top surface and a side surface surrounded by four continuous curved surfaces at the periphery; the side is located together to first buttress structure and second buttress structure interconnect, third buttress structure and fourth buttress structure interconnect locate the position that is close to the ship width central line together.
2. The FLNG upper module conjoined buttress structure of claim 1, wherein: the side face of the buttress structure is formed by welding and connecting four curved-surface steel plates.
3. The FLNG upper module conjoined buttress structure of claim 2, wherein: the radius of the curved surface of the curved steel plate is set to be 4-6 m.
4. The FLNG upper module conjoined buttress structure of claim 3, wherein: the first buttress structure and the second buttress structure are provided with one steel plate shared along the ship width direction; and the third buttress structure and the fourth buttress structure are provided with one steel plate shared along the width direction of the ship.
5. The FLNG upper module conjoined buttress structure of claim 4, wherein: the buttress structure is arranged above the strong cross beam and the longitudinal girder below the main deck.
6. The FLNG upper module conjoined buttress structure of claim 5, wherein: the length and the width of the top surface of the buttress structure are set to be 1.7-2.5 m.
7. The FLNG upper module conjoined buttress structure of claim 6, wherein: the length and the width of the bottom surface of the buttress structure are set to be 2.6-3.6 m.
8. The FLNG upper module conjoined buttress structure of claim 7, wherein: the height of the buttress structure is set to be 2.5-3 m.
9. The FLNG upper module conjoined buttress structure of claim 8, wherein: a horizontal reinforcing rib is arranged inside the buttress structure; and vertical reinforcing ribs are arranged inside the buttress structure.
10. The FLNG upper module conjoined buttress structure of claim 9, wherein: the top surface of the buttress structure is provided with a thickened steel plate; the thickness of the plate is 80-100 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111158522.0A CN113799945B (en) | 2021-09-30 | 2021-09-30 | FLNG upper module disjunctor buttress structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111158522.0A CN113799945B (en) | 2021-09-30 | 2021-09-30 | FLNG upper module disjunctor buttress structure |
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| Publication Number | Publication Date |
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| CN113799945A true CN113799945A (en) | 2021-12-17 |
| CN113799945B CN113799945B (en) | 2024-04-12 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2665007Y (en) * | 2003-12-30 | 2004-12-22 | 中海石油研究中心 | Module and ship hull connection structure in floating production oil-storage and unloading arrangement |
| RU2004132948A (en) * | 2004-11-12 | 2006-04-20 | ООО "ЛУКОЙЛ-Калининградморнефть" (RU) | TRANSITION BRIDGE OF MARINE STATIONARY PLATFORM |
| CN102031756A (en) * | 2010-12-01 | 2011-04-27 | 中建五局土木工程有限公司 | Support assembly and construction method of cast-in-place box girder |
| CN205077464U (en) * | 2015-09-01 | 2016-03-09 | 中泰国际高新技术有限公司 | Novel U canal |
| CN106122766A (en) * | 2016-08-16 | 2016-11-16 | 中海油能源发展股份有限公司 | A kind of FLNG upper module buttress system |
| CN106335613A (en) * | 2016-08-31 | 2017-01-18 | 中船黄埔文冲船舶有限公司 | Ship bed-jig |
| KR20170058734A (en) * | 2015-11-19 | 2017-05-29 | 다올이앤씨 주식회사 | Construction structure and method of composite girder for reduction amount of the steel in cross beam |
| CN108557031A (en) * | 2018-06-09 | 2018-09-21 | 西南石油大学 | A kind of box buttress of FPSO upper modules of semi-sliding |
| CN208632940U (en) * | 2018-08-08 | 2019-03-22 | 白婷婷 | A kind of assembling type steel structure arch bridge |
| CN112937797A (en) * | 2021-03-19 | 2021-06-11 | 中海石油(中国)有限公司 | Cylindrical FPSO (floating production storage and offloading) folding and butt-joint device and method thereof |
-
2021
- 2021-09-30 CN CN202111158522.0A patent/CN113799945B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2665007Y (en) * | 2003-12-30 | 2004-12-22 | 中海石油研究中心 | Module and ship hull connection structure in floating production oil-storage and unloading arrangement |
| RU2004132948A (en) * | 2004-11-12 | 2006-04-20 | ООО "ЛУКОЙЛ-Калининградморнефть" (RU) | TRANSITION BRIDGE OF MARINE STATIONARY PLATFORM |
| CN102031756A (en) * | 2010-12-01 | 2011-04-27 | 中建五局土木工程有限公司 | Support assembly and construction method of cast-in-place box girder |
| CN205077464U (en) * | 2015-09-01 | 2016-03-09 | 中泰国际高新技术有限公司 | Novel U canal |
| KR20170058734A (en) * | 2015-11-19 | 2017-05-29 | 다올이앤씨 주식회사 | Construction structure and method of composite girder for reduction amount of the steel in cross beam |
| CN106122766A (en) * | 2016-08-16 | 2016-11-16 | 中海油能源发展股份有限公司 | A kind of FLNG upper module buttress system |
| CN106335613A (en) * | 2016-08-31 | 2017-01-18 | 中船黄埔文冲船舶有限公司 | Ship bed-jig |
| CN108557031A (en) * | 2018-06-09 | 2018-09-21 | 西南石油大学 | A kind of box buttress of FPSO upper modules of semi-sliding |
| CN208632940U (en) * | 2018-08-08 | 2019-03-22 | 白婷婷 | A kind of assembling type steel structure arch bridge |
| CN112937797A (en) * | 2021-03-19 | 2021-06-11 | 中海石油(中国)有限公司 | Cylindrical FPSO (floating production storage and offloading) folding and butt-joint device and method thereof |
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| CN113799945B (en) | 2024-04-12 |
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