[go: up one dir, main page]

CN112319718B - An asymmetrical semi-submersible dismantling platform - Google Patents

An asymmetrical semi-submersible dismantling platform Download PDF

Info

Publication number
CN112319718B
CN112319718B CN202011401076.7A CN202011401076A CN112319718B CN 112319718 B CN112319718 B CN 112319718B CN 202011401076 A CN202011401076 A CN 202011401076A CN 112319718 B CN112319718 B CN 112319718B
Authority
CN
China
Prior art keywords
small
platform
upper hull
buoyancy tank
submersible
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
CN202011401076.7A
Other languages
Chinese (zh)
Other versions
CN112319718A (en
Inventor
刘建成
徐立新
吴海建
张建
唐文献
陈文科
陈伶翔
莫刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Merchants Marine Equipment Research Institute Co ltd
Jiangsu University of Science and Technology
China Merchants Heavy Industry Jiangsu Co Ltd
China Merchants Heavy Industry Shenzhen Co Ltd
Original Assignee
China Merchants Marine Equipment Research Institute Co ltd
Jiangsu University of Science and Technology
China Merchants Heavy Industry Jiangsu Co Ltd
China Merchants Heavy Industry Shenzhen Co Ltd
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 China Merchants Marine Equipment Research Institute Co ltd, Jiangsu University of Science and Technology, China Merchants Heavy Industry Jiangsu Co Ltd, China Merchants Heavy Industry Shenzhen Co Ltd filed Critical China Merchants Marine Equipment Research Institute Co ltd
Priority to CN202011401076.7A priority Critical patent/CN112319718B/en
Publication of CN112319718A publication Critical patent/CN112319718A/en
Application granted granted Critical
Publication of CN112319718B publication Critical patent/CN112319718B/en
Priority to PCT/CN2021/131055 priority patent/WO2022116818A1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/10—Arrangement of ship-based loading or unloading equipment for cargo or passengers of cranes
    • 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
    • B63B35/50—Vessels or floating structures for aircraft
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B43/00—Improving safety of vessels, e.g. damage control, not otherwise provided for
    • B63B43/02—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking
    • B63B43/10—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving buoyancy
    • B63B43/12—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving buoyancy using inboard air containers or inboard floating members
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/15—Vehicle, aircraft or watercraft design
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F30/00—Computer-aided design [CAD]
    • G06F30/10—Geometric CAD
    • G06F30/17—Mechanical parametric or variational design

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Theoretical Computer Science (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Computational Mathematics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Evolutionary Computation (AREA)
  • General Engineering & Computer Science (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Computer Hardware Design (AREA)
  • Automation & Control Theory (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Working Measures On Existing Buildindgs (AREA)
  • Foundations (AREA)

Abstract

The invention provides an asymmetric semi-submersible type disassembly platform which comprises an upper hull, a buoyancy tank and stand columns, wherein the stand columns are used for connecting the upper hull and the buoyancy tank; the large buoyancy tank is correspondingly connected with the two large upright posts, and the small buoyancy tank is correspondingly connected with the two small upright posts; the top surface of the upper hull is provided with a platform operation deck, the platform operation deck is provided with a crane, the side surface of the upper hull is provided with an apron, and the upper hull is internally provided with a platform living area. The surfaces of the upright post, the crane base, the crane installation bulkhead and the buoyancy tank are all designed into the positive Gaussian curved surfaces, and the crane base, the crane installation bulkhead and the upright post are designed into three-section cross-connection cambered surface design, so that composite force transmission is realized, the buoyancy of the buoyancy tank is effectively improved, and the bearing capacity, the operation capacity and the safety of a platform hull are improved; by adopting the asymmetric arrangement of the buoyancy tanks and the stand columns and utilizing the lever principle, the ballast efficiency, the hoisting capacity and the stability in the hoisting operation process of the disassembled platform are improved.

Description

Asymmetric semi-submersible type disassembling platform
Technical Field
The invention relates to the technical field of ocean engineering equipment, in particular to an asymmetric semi-submersible type disassembling platform.
Background
With the advocation of marine environmental protection and the emergence of rules in the marine oil and gas exploitation industry, many old offshore platforms of more than 4000 tons at home and abroad need to be disassembled and recycled, and the market space is very wide. The semi-submersible type hoisting and disassembling platform is used as professional disassembling equipment, needs to have an operation range, maximum bearing capacity and operation efficiency superior to those of a conventional hoisting platform, and is not a professional disassembling platform for offshore platforms in China.
A semi-submersible platform is generally composed of an upper hull platform and a lower hull composed of two pontoons and columns, and equipment such as a crane for work is installed on a deck of the upper hull. In a conventional semi-submersible lifting platform, two buoyancy tanks of a lower hull are symmetrically arranged, and a crane for operation is also symmetrically arranged at the stern of the platform. If the platform with larger hoisting capacity adopts symmetrically arranged buoyancy tanks and upright columns, the self weight of the crane can easily cause the stability of the platform to be reduced. In order to solve the problems, some existing semi-submersible platforms adopt asymmetric design of buoyancy tanks, the volumes of the two buoyancy tanks are different, large cranes are installed on one side of the large buoyancy tank, and ballast allocation is carried out by using the asymmetric form of a ship body in the hoisting operation process so as to ensure the stability of the ship body and improve the hoisting capacity of the platform.
The offshore oil and gas platform is disassembled, hoisting operation needs to be carried out on the disassembled large-scale component, transportation and recovery need to be carried out, and the disassembled platform has hoisting capacity and needs to improve the bearing capacity and transportation capacity of the platform.
Disclosure of Invention
In order to solve the defects, the invention aims to provide a semi-submersible lifting and disassembling platform which is based on asymmetric arrangement of buoyancy tanks, and has strong lifting capacity, strong bearing capacity and large transportation capacity.
In order to achieve the purpose, the invention provides an asymmetric semi-submersible type dismantling platform which comprises an upper ship body, buoyancy tanks and stand columns, wherein the stand columns are used for connecting the upper ship body and the buoyancy tanks, the buoyancy tanks comprise two large buoyancy tanks and small buoyancy tanks with different volumes, and the stand columns comprise two large stand columns positioned on one side below the bottom of the upper ship body and two small stand columns positioned on the other side below the bottom of the upper ship body; the large buoyancy tank is correspondingly connected with the two large upright posts, and the small buoyancy tank is correspondingly connected with the two small upright posts; the top surface of the upper hull is provided with a platform operation deck, and a plurality of cranes are arranged on the platform operation deck.
Further, two air aprons for taking off and landing the helicopter are arranged on the side face of the upper hull.
Further, a platform living area is arranged inside the upper ship body.
Furthermore, the large upright post and the small upright post are respectively connected with the bottom of the upper ship body through transition cambered surfaces.
Further, the curve equation of the lateral profile of the transition arc surface is a segment of a parabola, and the parabola equation is as follows:
Figure 267620DEST_PATH_IMAGE001
。
furthermore, four propeller thrusters are installed at the bottom of the large buoyancy tank, and two propeller thrusters are installed at the bottom of the small buoyancy tank.
Furthermore, the crane comprises two heavy offshore cranes and two small cranes, the two heavy offshore cranes are coaxially arranged with the two large columns respectively at the installation positions, two cambered bulkheads are arranged in the upper hull, and two ends of each cambered bulkhead are connected with the heavy offshore cranes and the large columns respectively.
Further, the surface lateral profile of the large upright column, the surface lateral profile of the small upright column, the cambered bulkhead and the base curved surface profile of the heavy-duty offshore crane are all arc profiles, and the curve equation of the arc profiles is that
Figure 388023DEST_PATH_IMAGE002
，
Wherein a and b are shape parameters respectively, and the curve shape of the arc-shaped profile is determined by the ratio of the parameters a and b
Figure 902181DEST_PATH_IMAGE003
Jointly determining;
the long axis of the arc profile curve equation is
Figure 828549DEST_PATH_IMAGE004
Minor axis of
Figure 49446DEST_PATH_IMAGE005
Wherein:
Figure 403067DEST_PATH_IMAGE006
，
Figure 76624DEST_PATH_IMAGE007
。
further, the curve equations of the surface transverse profiles of the large buoyancy tank and the small buoyancy tank are respectively
Figure 806683DEST_PATH_IMAGE008
，
Wherein a and b are shape parameters respectively, and the curve shape of the transverse profile is determined by the ratio of the parameters a and b
Figure 678824DEST_PATH_IMAGE009
Jointly determining;
the major axis of the curve equation of the transverse profile is
Figure 78713DEST_PATH_IMAGE004
Minor axis of
Figure 567463DEST_PATH_IMAGE005
Wherein:
Figure 835633DEST_PATH_IMAGE006
，
Figure 576929DEST_PATH_IMAGE007
。
further, the curve equations of the cross-sectional profiles of the large buoyancy tank and the small buoyancy tank are respectively
Figure 741194DEST_PATH_IMAGE010
，
Wherein a and b are shape parameters respectively, and the curve shape of the arc-shaped profile is determined by the ratio of the parameters a and b
Figure 389344DEST_PATH_IMAGE009
Determined together, with a first radius of curvature ofR 1 The second radius of curvature isR 2 ；
The long axis of the arc profile curve equation is
Figure 195626DEST_PATH_IMAGE004
Minor axis of
Figure 245622DEST_PATH_IMAGE005
Wherein:
Figure 111947DEST_PATH_IMAGE006
，
Figure 247393DEST_PATH_IMAGE007
。
the invention has the beneficial effects that: the upright column, the crane base, the crane installation bulkhead and the surface of the floating box are all designed into a positive Gaussian curved surface, and the crane base, the crane installation bulkhead and the upright column are designed into three-section cross-connection cambered surface design, so that composite force transmission is realized, the buoyancy of the floating box is effectively improved, and the bearing capacity, the operation capacity and the safety of a platform hull are improved; the asymmetrical arrangement of the buoyancy tanks and the stand columns is adopted, and a lever principle is utilized to provide an asymmetrical design method for large and small buoyancy tanks, so that the ballast efficiency, the hoisting capacity and the stability in the hoisting operation process of the disassembled platform are improved; the design of hidden life district not only can improve crewman's living environment, is showing simultaneously and increases the deck operation area that opens.
Drawings
FIG. 1 is a schematic perspective view of an asymmetric semi-submersible disassembly platform according to the present invention.
Fig. 2 is a port side view of the platform shown in fig. 1.
Fig. 3 is a side view of the stern of the platform shown in fig. 1.
FIG. 4 is a starboard side view of the platform shown in FIG. 1.
Fig. 5 is a top view of the platform shown in fig. 1.
FIG. 6 is a schematic view of the curved profile of the columns, buoyancy tanks, heavy crane base and curved connecting bulkheads.
FIG. 7 is a profile curve of a stud and an arc-shaped connecting bulkhead.
Fig. 8 is a profile curve of a base of a heavy duty crane.
Fig. 9 is a transverse profile curve of the surface of a large buoyancy tank.
Fig. 10 is a transverse profile curve of the surface of a small buoyancy tank.
Fig. 11 is a schematic view of a platform hoisting operation.
Wherein: 1. the marine floating crane comprises an upper ship body, 2, upright columns, 3, a buoyancy tank, 11, a platform operation deck, 12, a heavy marine crane, 13, a cambered bulkhead, 14, an apron, 15, a platform living area, 16, a small crane, 121, a base curved surface profile, 21, a large upright column, 22, a small upright column, 211, a surface lateral profile I, 212, a transition cambered surface I, 221, a surface lateral profile II, 222, a transition cambered surface II, 31, a large buoyancy tank, 32, a small buoyancy tank, 33 and a propeller.
Detailed Description
The present invention will now be described in detail by way of exemplary embodiments with reference to the accompanying drawings, in which embodiments of the invention are described in detail.
1-5, an asymmetric semi-submersible dismantling platform for installation of the platform working equipment. Comprises an upper hull 1, a buoyancy tank 3 and a stand column 2, wherein the stand column 2 is used for connecting the upper hull 1 and the buoyancy tank 3. The upper ship body 1 serves as an operation place, the upright column 2 is used for connecting the upper ship body 1 and the buoyancy tank 3, the upright column 2 plays a role in supporting the upper ship body 1, and the buoyancy tank 3 is used for providing buoyancy and navigation power.
The top surface of the upper hull 1 is set as a platform operation deck 11, a plurality of cranes are arranged on the platform operation deck 11, two air parks 14 for taking off and landing the helicopter are arranged on the side surface of the upper hull 1, and a platform living area 15 is arranged inside the upper hull 1. In the figure 2, the left side is a ship stern part, the right side is a ship bow part, the platform living area 15 is arranged in the upper ship body 1 and is positioned below the ship bow part operation deck 11, the living area is hidden and arranged in the ship body, the operation area of the platform operation deck 11 is obviously increased, the platform operation capacity is improved, and meanwhile, the platform living area 15 is positioned in a non-operation area, so that the living condition of a crew is also obviously improved. As shown in fig. 5, on the working platform 11, two offshore heavy cranes 12 are mounted on the starboard side of the hull, small cranes are mounted on the middle positions of the port and starboard sides of the hull, and two helicopter aprons 14 are mounted on the port side of the upper hull 1.
The buoyancy tank 3 comprises a large buoyancy tank 31 and a small buoyancy tank 32 which are different in volume and are positioned at the same height. The upright post 2 comprises two large upright posts 21 positioned on the starboard side of the platform and two small upright posts 22 positioned on the port side of the platform, and the large upright posts 21 and the small upright posts 22 have the same height and different sizes. The large buoyancy tank 31 is correspondingly connected with the two large upright posts 21, and the small buoyancy tank 32 is correspondingly connected with the two small upright posts 22. The large upright post 21 is connected with the bottom of the upper ship body 1 through a transition cambered surface I212. The small upright post 22 is connected with the bottom of the upper ship body 1 through a transition arc II 222. The joint is provided with a flange structure for reinforcement.
The lateral profile curve equation of the transition arc surface I212 of the large upright post 21 and the transition arc surface II 222 of the small upright post 22 is one section of a parabola, and the parabola equation is as follows:
Figure 857366DEST_PATH_IMAGE001
。
four propeller thrusters 33 are installed at the bottom of the large buoyancy tank 31, and two propeller thrusters 33 are installed at the bottom of the small buoyancy tank 32 for providing navigation power for the platform.
The interior of the upper hull 1 is provided with cabins with different volumes and different purposes, such as ballast tanks, living cabins, power cabins and the like, through partition boards.
The crane comprises two heavy offshore cranes 12 and two small cranes 16, the two heavy offshore cranes 12 are coaxially arranged with two large upright posts 21 respectively, two cambered bulkheads 13 are arranged in the upper hull 1, and two ends of the cambered bulkheads 13 are connected with the heavy offshore cranes 12 and the large upright posts 21 respectively to play roles of connection and support.
The surface lateral profile I211 of the large upright post 21, the surface lateral profile II 221 of the small upright post 22, the cambered bulkhead 13 for connecting the large upright post 21 with the base of the heavy-duty crane 12 and the base curved profile 121 of the heavy-duty offshore crane 12 are all cambered curves of cambered profiles.
As shown in fig. 6, the arc curve equation of the arc profile is:
the arc profile equation is
Figure 761868DEST_PATH_IMAGE011
。
The arc profile equation after deformation is:
Figure 64673DEST_PATH_IMAGE012
。
wherein a and b are shape parameters respectively, and the curve contour shape is determined by the ratio of the parameters a and b
Figure 421836DEST_PATH_IMAGE003
Determined together, with a first radius of curvature ofR 1 The second radius of curvature isR 2 。
The major axis of the curve of the arc profile is
Figure 507604DEST_PATH_IMAGE004
Minor axis of
Figure 594509DEST_PATH_IMAGE005
Wherein:
Figure 68215DEST_PATH_IMAGE006
，
Figure 912675DEST_PATH_IMAGE007
。
as shown in fig. 7, the curve equations of the surface lateral profile i 211 of the large column 21, the surface lateral profile ii 221 of the small column 22 and the cambered bulkhead 13 for connecting the large column 21 and the base of the heavy offshore crane 12 are shown, where =0.45, the curve corresponding equation is:
Figure DEST_PATH_IMAGE013
，
corresponding to the long shaft
Figure 268045DEST_PATH_IMAGE004
Minor axis
Figure 271773DEST_PATH_IMAGE005
Respectively as follows:
Figure 791747DEST_PATH_IMAGE014
，
Figure 248137DEST_PATH_IMAGE015
，
as shown in fig. 7, intercept from-x 1Tox 1The curves of (1) are a section of curve with black and thick in the figure, which is taken as a surface lateral profile I211 of the large upright post 21, a surface lateral profile II 221 of the small upright post 22 and a cambered bulkhead 13 connecting the large upright post 21 and the base of the heavy offshore crane 12.
The large upright post 21, the small upright post 22, the cambered bulkhead 13 and the base of the heavy offshore crane 12 are arranged at the same axial line position, and the surfaces of the large upright post 21, the small upright post 22, the cambered bulkhead 13 and the base of the heavy offshore crane 12 are designed by adopting cambered surfaces, so that composite force transmission can be formed in the axial direction, the bearing capacity of the large upright post 21 and the small upright post 22 is greatly enhanced, the working stability of the heavy offshore crane 12 is improved, and the hoisting capacity of a dismantling platform is obviously improved.
As shown in FIG. 8, the curve is a curved equation of the curved profile 121 of the base of the heavy marine crane 12, wherein
Figure 878969DEST_PATH_IMAGE003
If =0.45, the curve corresponding equation is:
Figure 471625DEST_PATH_IMAGE016
，
corresponding to the long shaft
Figure 162500DEST_PATH_IMAGE004
Minor axis
Figure 106185DEST_PATH_IMAGE005
Respectively as follows:
Figure 540709DEST_PATH_IMAGE017
，
Figure 253450DEST_PATH_IMAGE018
，
as shown in fig. 8, intercept fromx 2Tox 1The curved line segment of (a), which is a black and thick curved line segment in the figure, is used as the curved contour 121 of the base of the heavy-duty marine crane 12.
As shown in FIG. 9, the curve is the equation of the curve of the lateral profile 312 of the surface of the large buoyancy tank 31, wherein
Figure 646385DEST_PATH_IMAGE003
If =0.63, the curve correspondence equation is:
Figure 952733DEST_PATH_IMAGE019
，
corresponding to the long shaft
Figure 50002DEST_PATH_IMAGE004
Minor axis
Figure 758195DEST_PATH_IMAGE005
Respectively as follows:
Figure DEST_PATH_IMAGE020
，
Figure 59382DEST_PATH_IMAGE021
，
as shown in fig. 9, the curves relate toxAxisymmetric, forming a closed curve, and cutting outx 1Tox 1And is located atr<The curve segment in the area 0, i.e. a segment of the curve in the thin line part of the figure, is removed, and the remaining part of the curve is used as the surface transverse profile 312 of the large buoyancy tank 31.
As shown in FIG. 10, the curve is the equation of the lateral profile 322 of the surface of the small buoyancy tank 32, wherein
Figure 977659DEST_PATH_IMAGE003
If =0.35, the curve correspondence equation is:
Figure DEST_PATH_IMAGE022
，
corresponding to the long shaft
Figure 488406DEST_PATH_IMAGE004
Minor axis
Figure 910160DEST_PATH_IMAGE005
Respectively as follows:
Figure 113739DEST_PATH_IMAGE023
，
Figure 925838DEST_PATH_IMAGE024
，
as shown in fig. 10, the curves relate toxAxisymmetric, forming a closed curve, and cutting outx 1Tox 1And is located atr<The curved line segment of the 0 region, i.e., a segment of the curve of the thin line portion in the figure, is removed, and the remaining portion of the curve is used as the surface lateral profile 322 of the small buoyancy tank 32. The transverse profiles of the surfaces of the large buoyancy tank 31 and the small buoyancy tank 32 are designed into the curves, so that the volume of the large buoyancy tank and the volume of the small buoyancy tank are effectively increased, the buoyancy of the large buoyancy tank and the small buoyancy tank is improved, and the maximum hoisting weight of the platform is improved.
The disassembly platform is designed in an asymmetric structure, and a corresponding design method can be provided for the design of the large buoyancy tank and the small buoyancy tank of the platform according to the lever principle:
as shown in FIG. 11, during the hoisting process, the hoisting mass of the heavy crane 12 ismThe heavy object is suspended outside the right board of the platform, and the center of mass of the platform is positionedOAt the point of the above-mentioned process,F 1 andF 2 the large buoyancy tank 31 and the small buoyancy tank 32 are respectively subjected to buoyancy. By utilizing the lever principle, the large buoyancy tank 31 is taken as a fulcrum, in order to ensure the balance of the ship body, two sides of the fulcrum, namely two sides of the large buoyancy tank 31, need to be ensured to be stressed in balance, and the two sides of the fulcrum have a resultant force in the vertical direction
Figure 630488DEST_PATH_IMAGE025
And resultant moment
Figure DEST_PATH_IMAGE026
Is 0:
Figure 578853DEST_PATH_IMAGE027
Figure DEST_PATH_IMAGE028
can be pushed out by the above two typesF 1 AndF 2 the relationship of (1):
Figure 484492DEST_PATH_IMAGE029
wherein:
Figure DEST_PATH_IMAGE030
，
Figure 721569DEST_PATH_IMAGE031
，V 1 、V 2 the volumes of the large buoyancy tank 31 and the small buoyancy tank 32 are respectively, and because the lengths of the two buoyancy tanks are the same, the following can be obtained:
Figure DEST_PATH_IMAGE032
whereinS 1 、S 2 The cross-sectional areas of the large buoyancy tank 31 and the small buoyancy tank 32 are provided. From the cross-sectional profile curves of the large and small buoyancy tanks 31, 32 shown in fig. 9, 10, respectively, it can be derived:
the cross-sectional profile curve equation of the large buoyancy tank 31 is
Figure 370857DEST_PATH_IMAGE033
，
The cross-sectional profile curve equation of the small buoyancy tank 32 is
Figure DEST_PATH_IMAGE034
。
In the design of asymmetric arrangement of the large buoyancy tank 31 and the small buoyancy tank 32, the buoyancy relation of the large buoyancy tank and the small buoyancy tank and the shape parameters of the cross section contour curve of the buoyancy tank can be determined according to the three formulas, so that the overall stability of the platform under the working condition is ensured.

Claims (8)

1.一种非对称半潜式拆解平台，包括上船体、浮箱和立柱，所述立柱用于连接上船体和浮箱，其特征在于：所述浮箱包括两个体积不等的大浮箱与小浮箱，所述立柱包括位于上船体底部下方一侧的两根大立柱和位于上船体底部下方另一侧的两根小立柱；所述大浮箱与两根大立柱对应连接，所述小浮箱与两根小立柱对应连接；所述上船体顶部表面设为平台作业甲板，所述平台作业甲板上设有多台吊机；所述吊机包括两座重型海上吊机和两座小型吊机，两座所述重型海上吊机的安装位置分别与两根大立柱同轴心设置，所述上船体内有两个弧面舱壁，所述弧面舱壁的两端分别连接重型海上吊机与大立柱；所述大立柱的表面侧向轮廓、小立柱表面侧向轮廓、弧面舱壁以及重型海上吊机的底座曲面轮廓均为弧形轮廓，所述弧形轮廓的曲线方程为1. an asymmetrical semi-submersible dismantling platform, comprising upper hull, pontoon and column, and described column is used to connect upper hull and pontoon, it is characterized in that: described pontoon comprises two large unequal volumes. The floating box and the small floating box, the column includes two large columns located on one side below the bottom of the upper hull and two small columns located on the other side below the bottom of the upper hull; the large floating box is correspondingly connected with the two large columns , the small floating box is correspondingly connected with two small columns; the top surface of the upper hull is set as a platform operation deck, and a plurality of cranes are arranged on the platform operation deck; the cranes include two heavy-duty offshore cranes and two small cranes, the installation positions of the two heavy offshore cranes are respectively arranged coaxially with the two large columns, the upper hull has two arc bulkheads, and the two arc bulkheads are The ends are respectively connected to the heavy-duty offshore crane and the large column; the surface lateral contour of the large column, the surface lateral contour of the small column, the curved bulkhead and the curved contour of the base of the heavy offshore crane are all arc-shaped contours. The curve equation of the contour is
Figure 501019DEST_PATH_IMAGE001
，
Figure 501019DEST_PATH_IMAGE001
, 其中a、b分别为形状参数，所述弧形轮廓的曲线形状由参数a、b的比值
Figure 260902DEST_PATH_IMAGE002
决定；where a and b are shape parameters respectively, and the curve shape of the arc profile is determined by the ratio of the parameters a and b.
Figure 260902DEST_PATH_IMAGE002
Decide; 所述弧形轮廓曲线方程的长轴为
Figure 368535DEST_PATH_IMAGE003
，短轴为
Figure 232586DEST_PATH_IMAGE004
，其中：The long axis of the arc profile curve equation is
Figure 368535DEST_PATH_IMAGE003
, the short axis is
Figure 232586DEST_PATH_IMAGE004
,in:
Figure 391166DEST_PATH_IMAGE005
，
Figure 391166DEST_PATH_IMAGE005
,
Figure 416891DEST_PATH_IMAGE006
。
Figure 416891DEST_PATH_IMAGE006
. 2.根据权利要求1所述的非对称半潜式拆解平台，其特征在于：所述上船体侧面安装有用于直升机起降的两座停机坪。2 . The asymmetrical semi-submersible dismantling platform according to claim 1 , wherein two parking pads for helicopter take-off and landing are installed on the side of the upper hull. 3 . 3.根据权利要求1所述的非对称半潜式拆解平台，其特征在于：所述上船体内部设有平台生活区。3 . The asymmetrical semi-submersible dismantling platform according to claim 1 , wherein a platform living area is arranged inside the upper hull. 4 . 4.根据权利要求1所述的非对称半潜式拆解平台，其特征在于：所述大立柱与小立柱分别通过过渡弧面与上船体底部相连。4 . The asymmetrical semi-submersible dismantling platform according to claim 1 , wherein the large column and the small column are respectively connected to the bottom of the upper hull through a transition arc surface. 5 . 5.根据权利要求4所述的非对称半潜式拆解平台，其特征在于：所述过渡弧面侧向轮廓的曲线方程为抛物线中的一段，所述抛物线方程为：5. asymmetric semi-submersible dismantling platform according to claim 4, is characterized in that: the curve equation of described transition arc side profile is a section in parabola, and described parabola equation is:
Figure 11820DEST_PATH_IMAGE007
。
Figure 11820DEST_PATH_IMAGE007
. 6.根据权利要求1所述的非对称半潜式拆解平台，其特征在于：所述大浮箱底部位置安装有四台螺旋桨推进器，所述小浮箱底部位置安装有两台螺旋桨推进器。6. The asymmetrical semi-submersible dismantling platform according to claim 1 is characterized in that: four propellers are installed at the bottom of the large floating box, and two propellers are installed at the bottom of the small floating box. device. 7.根据权利要求1所述的非对称半潜式拆解平台，其特征在于：所述大浮箱和小浮箱的表面横向轮廓的曲线方程分别为7. the asymmetrical semi-submersible dismantling platform according to claim 1, is characterized in that: the curve equations of the surface lateral profile of described large pontoon and small pontoon are respectively:
Figure 53463DEST_PATH_IMAGE008
，
Figure 53463DEST_PATH_IMAGE008
, 其中a、b分别为形状参数，所述横向轮廓的曲线形状由参数a、b的比值
Figure 925605DEST_PATH_IMAGE009
决定；where a and b are shape parameters respectively, and the curve shape of the lateral profile is determined by the ratio of parameters a and b.
Figure 925605DEST_PATH_IMAGE009
Decide; 所述横向轮廓的曲线方程的长轴为
Figure 512444DEST_PATH_IMAGE010
，短轴为
Figure 345402DEST_PATH_IMAGE011
，其中：The long axis of the curve equation of the lateral profile is
Figure 512444DEST_PATH_IMAGE010
, the short axis is
Figure 345402DEST_PATH_IMAGE011
,in:
Figure 551255DEST_PATH_IMAGE012
，
Figure 551255DEST_PATH_IMAGE012
,
Figure 668116DEST_PATH_IMAGE013
。
Figure 668116DEST_PATH_IMAGE013
. 8.根据权利要求7所述的非对称半潜式拆解平台，其特征在于：所述大浮箱和小浮箱的横截面面积分别为8. The asymmetrical semi-submersible dismantling platform according to claim 7, wherein the cross-sectional areas of the large floating box and the small floating box are respectively
Figure 566801DEST_PATH_IMAGE014
。
Figure 566801DEST_PATH_IMAGE014
.
CN202011401076.7A 2020-12-04 2020-12-04 An asymmetrical semi-submersible dismantling platform Active CN112319718B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202011401076.7A CN112319718B (en) 2020-12-04 2020-12-04 An asymmetrical semi-submersible dismantling platform
PCT/CN2021/131055 WO2022116818A1 (en) 2020-12-04 2021-11-17 Asymmetric semi-submersible disassembly platform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011401076.7A CN112319718B (en) 2020-12-04 2020-12-04 An asymmetrical semi-submersible dismantling platform

Publications (2)

Publication Number Publication Date
CN112319718A CN112319718A (en) 2021-02-05
CN112319718B true CN112319718B (en) 2021-08-20

Family

ID=74302065

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011401076.7A Active CN112319718B (en) 2020-12-04 2020-12-04 An asymmetrical semi-submersible dismantling platform

Country Status (2)

Country Link
CN (1) CN112319718B (en)
WO (1) WO2022116818A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112319718B (en) * 2020-12-04 2021-08-20 招商局重工（江苏）有限公司 An asymmetrical semi-submersible dismantling platform
CN114954800B (en) * 2022-05-19 2023-07-04 大连理工大学 Asymmetric double-body LNG switching of little water plane is refuted

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102328733B (en) * 2011-07-14 2014-04-02 烟台中集来福士海洋工程有限公司 Semi-submersible lifting living platform
CN203889019U (en) * 2014-06-08 2014-10-22 张洪达 Asymmetric semi-submersible type ocean platform
KR20170059141A (en) * 2015-11-20 2017-05-30 삼성중공업 주식회사 Semi-submersible marine structure
CN106976530A (en) * 2016-01-18 2017-07-25 中国国际海运集装箱(集团)股份有限公司 Semisubmersible platform
CN109808850A (en) * 2019-03-28 2019-05-28 招商局重工（江苏）有限公司 A kind of connection structure of semi-submersible offshore engineering platform column and deck box
CN112319718B (en) * 2020-12-04 2021-08-20 招商局重工（江苏）有限公司 An asymmetrical semi-submersible dismantling platform

Also Published As

Publication number Publication date
WO2022116818A1 (en) 2022-06-09
CN112319718A (en) 2021-02-05

Similar Documents

Publication Publication Date Title
CN113581395B (en) Semi-submersible floating wind turbine with T-shaped buoy
CN102328733B (en) Semi-submersible lifting living platform
US8201514B2 (en) Powered boat hull
CN202765254U (en) Semi-submersible type lifting accommodation platform
CN112319718B (en) An asymmetrical semi-submersible dismantling platform
KR101731878B1 (en) Method of inclining test for semi-submergible RIG
WO2018210198A1 (en) Basic module of very large floating structure
CN103910044B (en) A semi-submersible lifting platform for large floating marine structures and its application method
US11052978B2 (en) Floating structure, and basic module of floating structure
CN107792303B (en) Semi-submersible type ocean hoisting platform and operation method thereof
JP2020500119A (en) Self-propelled jack-up vessel
CN204979167U (en) Semi -submerged formula accommodation platform
CN106143817A (en) Semi-submersible platform and its lower floating body
US20140238289A1 (en) Mobile offshore drilling unit
CN106516025B (en) Semi-submersible living platform
CN106976530A (en) Semisubmersible platform
CN111661235A (en) Semi-submersible type multifunctional transport dismounting ship
US7628115B2 (en) Mechanism for collapsible catamaran
CN203902800U (en) A semi-submersible lifting platform for large floating marine structures
CN201046770Y (en) Ship having wind-wave resistant function
CN109070973A (en) Large Displacement Hull Vessel
US20210047011A1 (en) Tug with an all around towing installation
CN113697026A (en) Three-body ship
CN205770046U (en) Semi-submersible type accommodation platform
CN117227919A (en) High-navigational speed semi-submersible platform suitable for high sea conditions

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant