WO2017003258A1 - Installation de plate-forme à pieds à flottement sélectif, et procédé de construction et procédé de fonctionnement de celle-ci - Google Patents

Installation de plate-forme à pieds à flottement sélectif, et procédé de construction et procédé de fonctionnement de celle-ci Download PDF

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Publication number
WO2017003258A1
WO2017003258A1 PCT/KR2016/007128 KR2016007128W WO2017003258A1 WO 2017003258 A1 WO2017003258 A1 WO 2017003258A1 KR 2016007128 W KR2016007128 W KR 2016007128W WO 2017003258 A1 WO2017003258 A1 WO 2017003258A1
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WIPO (PCT)
Prior art keywords
platform
leg
floating
buoyancy tank
selective
Prior art date
Application number
PCT/KR2016/007128
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English (en)
Korean (ko)
Inventor
최성락
Original Assignee
주식회사 가스이즈
최성락
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Application filed by 주식회사 가스이즈, 최성락 filed Critical 주식회사 가스이즈
Priority claimed from KR1020160083349A external-priority patent/KR101715061B1/ko
Publication of WO2017003258A1 publication Critical patent/WO2017003258A1/fr

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    • 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 
    • 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
    • B63B43/04—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability
    • B63B43/06—Improving safety of vessels, e.g. damage control, not otherwise provided for reducing risk of capsizing or sinking by improving stability using ballast tanks
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/52—Submerged foundations, i.e. submerged in open water

Definitions

  • the present invention relates to an optional floating leg platform facility structure, and more particularly, the LNG regasification facility may also serve as a virtual breakwater while allowing easy installation of offshore LNG regasification facilities adjacent to land.
  • the invention relates to a selection of floating leg platform installations in accordance with a new form which allows for a solid installation thereof, and a drying method and operation thereof.
  • LNG Liquefied Natural Gas
  • This regasification of LNG can be performed on land, but for safety reasons, it is generally installed on the sea near the land, and usually, LNGS (Liquefied Natural Gas Carrier), LNG Liquefied Natural Gas Regasification Vessel (LV), LNG It is installed in floating structures including ships and offshore structures such as Liquefied Natural Gas Floating Storage and Regasification Unit (FSRU) and Liquefied Natural Gas Floating Production Storage and Off-loading (FPSO).
  • Korean Patent Publication No. 10-2010-0133272 Korean Patent Registration No. 10-0888339, Korean Patent Publication No. 10-2007-0085870, Korean Patent Registration No. 10-1018741, Korean Patent Registration No. 10- 1185872 and the like.
  • the above-mentioned floating offshore structure has a problem that it is difficult to operate the equipment in a stable and continuously because of the influence of the weather and waves during the installation of its offshore.
  • a separate breakwater should be additionally installed around the regasification facility, or fixed to a specific position using a towing wire, etc.
  • the object of the present invention is to facilitate the installation of the sea to the LNG regasification facility adjacent to the land while the barge-shaped floating Optional floating leg platform facility according to the new type that can be fixed in the bottom and floating when needed by utilizing the lower leg structure and buoyancy tank instead of the type structure. And to provide a method of drying and operation thereof.
  • a selective floating leg platform facility for performing storage work, regasification, or power generation at sea (Platform); A concrete structure that is installed by being seated on a sea bottom facing the platform; And a leg having one end connected to the lower portion of the platform and the other end connected to the upper portion of the concrete structure.
  • the LNG tank is provided below the platform.
  • a void space having a set height is provided between the platform and the LNG tank.
  • the ballast pump may further include a ballast pump for supplying ballast water to the buoyancy tank, wherein the ballast pumps are disposed one on each side with the LNG tank interposed therebetween.
  • the leg is made of a structure capable of adjusting the length.
  • the legs are provided with a plurality, the plurality of legs are connected to the same height according to the water depth between the bottom of the platform and the top of the concrete structure.
  • the selected floating leg platform equipment for achieving the above object is a platform (Platform) for storing or regasification of cargo, or performing power generation work;
  • a selection floating structure provided on the platform and floating on the sea when the platform is moved, and configured to sink to the sea floor when the platform is not moved;
  • Located in the lower portion of the platform and the leg structure is installed on the sea floor; comprises a.
  • the platform is configured to include a LNG tank in which the LNG is stored, and a regasification apparatus provided on the upper portion of the LNG tank to regasify the LNG in the LNG tank.
  • the optional floating structure is disposed on the bottom surface of the platform, the ballast water is filled and provided as a weight body when the platform is not moved, and the ballast water is discharged when the platform is moved and provided as a buoyancy body, and the platform It is located on one side of the circumference and comprises a pump chamber provided with a pump driven to fill or drain the ballast water in the main buoyancy tank, and comprises a guide duct for guiding the filling or drainage flow of ballast water .
  • the main buoyancy tank of the selected floating structure is divided into an upper buoyancy tank and a lower buoyancy tank, the column is further provided between the upper buoyancy tank and the lower buoyancy tank.
  • a plurality of through holes are formed in the column to eliminate wave resistance.
  • the upper surface of the main buoyancy tank of the selection floating structure is formed to be positioned higher than the water level during low tide and high tide.
  • the upper surface of the pump chamber is located higher than the height of the wave in the region, the hatch is installed on the upper surface of the pump chamber for the operator to enter the pump chamber.
  • the circumference of the platform is further provided with a side buoyancy tank and trim tank.
  • leg structure is a ballast water is stored to support the floating of the platform while being mounted on the sea floor, or the auxiliary buoyancy tank is provided to the buoyancy space is empty ballast water, and the fixed buoyancy tank is fixed to the upper surface It comprises a plurality of legs on which the optional floating structure is mounted.
  • each leg In addition, a plurality of through holes are formed in each leg to remove wave resistance.
  • a mounting guide for guiding the mounting of the selection floating structure is further provided on the upper outer surface of each leg.
  • a rock layer is poured on the sea bottom, and the leg structure is installed on the rock layer.
  • a fender for mooring the vessel is further provided on the outer outer wall surface of the platform.
  • the drying method of the selective floating leg platform installation according to one embodiment of the present invention (a) to produce the leg connecting the depth between the lower portion of the platform and the concrete structure according to the depth Making; (b) connecting one end of the leg to the bottom of the platform; And (c) connecting the other end of the leg to an upper portion of the concrete structure.
  • the operation method of the selected floating leg platform installation according to one aspect of the platform stably operating the platform fixed to the sea floor by the legs and concrete structure, while the platform If it is necessary to move the one end of the leg or the other end of the connection comprises the step of floating the platform.
  • the operation method of the selected floating leg platform equipment according to another aspect of the present invention for achieving the above object is to be fixed in the area by filling the ballast water in the main buoyancy tank and the auxiliary buoyancy tank to sink in the water. It operates by performing regasification operation or power generation operation in a state, and when the platform is required to move, the pump is driven to discharge the ballast water in the main buoyancy tank forming the optional floating structure and the auxiliary buoyancy tank forming the leg structure. Floating on the; Towing the platform suspended in the sea to the ship to move to a set point;
  • the optional floating leg platform facility of the present invention is selected so that the platform is not affected by waves or winds while the selected floating structure and the leg structure are locked to the sea floor in the state of normal operation. It can ensure structural stability, and also has the effect that the platform regasification operation or power generation operation can proceed stably.
  • the optional floating leg platform installation of the present invention in consideration of the weight of the entire platform installation is to perform the function of a breakwater that is actually installed adjacent to the shore, thereby having the effect that no separate breakwater is required.
  • the optional floating leg platform facility of the present invention is additionally equipped with a fender for mooring the ship on the outer wall of the sea side of the platform to additionally perform the function of the eyepiece facility for mooring the ship. Has the effect.
  • the optional floating leg platform equipment of the present invention can be used as a mooring facility itself, so no separate mooring equipment is required, and it is possible to be lighter than the existing floating structure, and it is easy to access from the land. It is easy to support electricity, fresh water, steam, etc. from the land, and the additional installation of the fender 160 enables additional functions of the berthing facility for mooring the ship.
  • the optional floating leg platform equipment of the present invention is configured to move by floating to the sea through the de-ballasting (de-ballasting) if necessary, since it is manufactured in a place where the production cost is low, such as shipyards can be moved installation And it has the effect that it is possible to work by moving from one place to another after use.
  • the selective floating leg platform installation of the present invention can be expected to improve the economic effect because the structure change such as adjusting the height of each leg or the height of the column is simple and simple when used in a different depth of water.
  • FIG. 1 is a front view showing for explaining the optional floating leg platform installation according to the first embodiment of the present invention
  • Figure 2 is a plan view showing for explaining the optional floating leg platform installation according to the first embodiment of the present invention
  • Figure 3 is a side view showing for explaining the optional floating leg platform installation according to the first embodiment of the present invention
  • FIG. 4 is a flow chart briefly illustrating a method for drying and operating a selective floating leg platform device according to a first embodiment of the present invention.
  • Figure 5 is a front view showing for explaining the optional floating leg platform installation according to a second embodiment of the present invention
  • FIG. 6 is a plan view illustrating a selective floating leg platform installation according to a second exemplary embodiment of the present invention.
  • Figure 7 is a side view showing for explaining the optional floating leg platform installation according to a second embodiment of the present invention.
  • FIG. 8 is a side view illustrating another embodiment of the optional floating structure of the selected floating leg platform installation according to the second embodiment of the present invention
  • FIG. 9 is a plan view of the selected floating structure of the selected floating leg platform installation according to the second embodiment of the present invention.
  • FIG. 10 is a flow chart illustrating a drying and operating process of the selected floating leg platform installation according to a second embodiment of the present invention
  • FIG. 11 is a side view illustrating an example of a column and leg form of a selective floating leg platform device according to another exemplary embodiment of the present invention.
  • FIG. 12 is a side view illustrating an example of a column and leg form of a selective floating leg platform installation according to another embodiment of the present invention.
  • FIG. 1 is a side view illustrating the selective floating leg platform facility according to the first embodiment of the present invention
  • FIG. 2 illustrates the selective floating leg platform facility according to the first embodiment of the present invention
  • 3 is a cross-sectional view illustrating a selective floating leg platform device according to a first embodiment of the present invention
  • FIG. 4 is a selective floating leg according to a first embodiment of the present invention. It is a flow chart briefly showing the construction and operation of the platform equipment.
  • the optional floating leg platform installation according to the first embodiment of the present invention includes a leg structure 1, a platform 50, and a leg 10 connected therebetween. .
  • the platform 50 is a facility (or facility) for storing and regasifying LNG at sea, and may be disposed on an upper portion of the LNG tank 30, and is preferably mounted through a predetermined machine space. It is not limited to this.
  • the concrete structure (5) is installed on the bottom surface facing the platform 50 is installed.
  • the concrete structure 5 may be stably seated on the bottom surface 1 facing the platform 50, more specifically, the ballast water tank 20. And, the same height may be provided in the form of a flat structure.
  • the leg 10 is a columnar member having one end connected to a lower portion of the ballast water tank 20 and the other end connected to an upper portion of the concrete structure 5.
  • the material of the leg 10 does not need to be particularly limited, but while supporting the heavy load of the platform, cargo and ballast water tank 20 on the upper portion of the concrete structure 5, the strength for supporting various resistances It is good to have a material that can secure.
  • the selective floating leg platform equipment according to the first embodiment of the present invention configured as described above is installed on the sea, but is not a floating structure in the form of a barge (barge) as in the conventional fixed concrete structure 5 and the leg 10 It can be fixed to the bottom (1) by using, there is an advantage that can be floated using the ballast water tank (20: 20a, 20c) if necessary.
  • the height of the concrete structure (5) can be adjusted, can be installed in accordance with the change in the water depth can be expected economically beneficial effect.
  • the LNG tank 30 may be provided below the platform 50.
  • a separation space having a set height that is, a void space 60 may be provided between the machining space on which the platform 50 is mounted and the LNG tank 30. It is not limited.
  • ballast water tank (20: 20a, 20c) provided in a form surrounding the lower and circumference of the LNG tank (30).
  • the ballast water tanks 20: 20a, 20b, and 20c are filled with ballast water and stored therein. When the ballast water is fixed to the sea bottom or floating on the sea, the ballast water is stored or discharged. Buoyancy can be adjusted.
  • ballast water tanks 20: 20a and 20c should be further provided with a ballast pump 21 (see FIG. 2) for supplying ballast water.
  • the ballast pump 21 may have an arrangement structure installed one on both sides of the LNG tank 30, but is not necessarily limited thereto. Such an arrangement can be confirmed with reference to FIG. 2.
  • the leg 10 of the present invention is preferably made of a structure capable of adjusting the length, but is not necessarily limited thereto.
  • the leg 10 may be manufactured in the form of a module having a set length, and may be provided in a form in which several pieces may be connected in succession if length extension is required depending on the depth.
  • the length of the leg 10 itself is made of a structure that can be stretched and contracted (eg, telescopic structure, etc.) in a form that can be extended in length by using a variety of power sources (eg, hydraulic pressure, etc.) It may be provided, and may have various other structures.
  • a plurality of legs 10 may be disposed in the transverse direction between the ballast water tanks 20: 20a, 20b, and 20c and the concrete structure 5. Such a plurality of legs 10 are preferably all connected at the same height according to the depth between the lower portion of the platform 50 and the upper portion of the concrete structure (5).
  • one end of the leg 10 connected to the ballast water tanks 20: 20a, 20b, and 20c is separated or a leg connected to the upper portion of the concrete structure 5 ( The other end of 10) may be separated.
  • one end and the other end of the leg 10 may be made of a structure that is separated.
  • the platform 50 may be allowed to float on the sea with the ballast water tanks 20: 20a, 20b, and 20c and the LNG tank 30.
  • the selective floating leg platform according to the first embodiment of the present invention is fixed to the bottom of the sea, it is possible to ensure structural stability without being affected by waves and wind.
  • the selected floating leg platform platform itself according to the first embodiment of the present invention can be used as a mooring facility, a separate mooring facility is unnecessary, and the weight of the structure can be reduced compared to the existing floating structure. It is easy to get in and out of the land, there is an advantage of easy support such as electricity / fresh water / steam.
  • the drying method of the selective floating leg platform installation according to the first embodiment of the present invention may first perform the step (S10) of manufacturing the leg (10).
  • the manufacturing step (S10) of the leg 10 it is preferable to manufacture the leg 10 to have a length suitable for the depth when connected between the lower portion of the platform 50 and the upper portion of the concrete structure (5).
  • step S20 of connecting one end (eg, the upper end, etc.) of the leg 10 to the lower portion of the platform 50 may be performed.
  • step S30 of connecting the other end of the leg 10 (for example, the lower end) to the upper portion of the concrete structure 5 may be performed.
  • Step (S40) of stably operating the selected floating leg platform equipment fixed to the sea bottom by (5) can be performed.
  • the platform 50 is floated first, and then the concrete structure 5 is floated so that the movable installation is possible.
  • Figures 5 to 12 are attached to show a selective floating leg platform installation according to a second embodiment of the present invention.
  • FIG. 5 is a front view illustrating the selective floating leg platform facility according to the second embodiment of the present invention
  • FIG. 6 is the selective floating leg platform facility according to the second embodiment of the present invention
  • 7 is a plan view illustrating the selective floating leg platform according to the second embodiment of the present invention.
  • the selective floating leg platform facility includes a platform 100, a selection floating structure 200, and a leg structure 300.
  • the platform 100 can be moved in a floating state by the selection floating structure 200 while being able to maintain a fixed state on the sea bottom.
  • the platform 100 is a device that performs storage or regasification or power generation work of cargo at sea.
  • the platform 100 is provided on the LNG tank 110 and the LNG tank 110 in which the LNG is stored, and regasification for regasifying the LNG in the LNG tank 110.
  • the platform 100 includes a device 120.
  • the platform 100 may be configured only of the LNG tank 110 alone, or may be configured as a tank for storing other cargo, or a facility built to perform a power generation operation.
  • the platform 100 is further provided with a side buoyancy tank 130 and the trim tank 140.
  • the side buoyancy tank 130 and the trim tank 140 is a tank for maintaining the horizontal and buoyancy of the platform 100, wherein the side buoyancy tank 130 is the front side (land side) of the LNG tank 110 7, the trim tank 140 is provided at both sides of the LNG tank 110.
  • the trim tank 140 is provided at the right side and the rear side (sea side, left side when referring to the attached FIG. 3). It is installed on the wall (stern and bow part) respectively.
  • a void space 150 may be provided between the LNG tank 110 constituting the platform 100 and the regasification apparatus so that the LNG tank 110 may be protected from an external shock when the platform 100 moves. It is desirable to.
  • a fender 160 for mooring the vessel, through which the platform 100 ) Is not only provided as a facility for simple regasification or as a structure for storing LNG, but also as a structure that can play the role of a breakwater that can additionally perform the function of an eyepiece facility for mooring ships. It is to be provided.
  • the selective floating leg platform according to the second embodiment of the present invention has the advantage that it does not need a separate breakwater because it is a structure that also performs the actual breakwater function.
  • a machine space 170 is provided at one side of the platform 100.
  • the selection floating structure 200 is a configuration provided for fixing and moving the platform 100.
  • the optional floating structure 200 allows the platform 100 to be moved to a floating state while floating on the sea when the platform 100 moves, while on the sea floor when the platform 100 is not moved. It is fixed to the leg structure 300 in the sunk state serves to maintain the platform 100 is fixed in the wave or wind.
  • the optional floating structure 200 is configured to include a main buoyancy tank 210, the pump chamber 220 and the guide duct 230.
  • the main buoyancy tank 210 is disposed on the bottom surface of the platform 100 and provided as a weight body filled with ballast water when the platform 100 is not moved, and the ballast water is drained when the platform 100 is moved. It is a storage tank provided as a buoyancy body.
  • the main buoyancy tank 210 is divided into an upper buoyancy tank 211 and a lower buoyancy tank 212, and the upper buoyancy tank
  • a column 213 that is not subjected to buoyancy is further provided between the 211 and the lower buoyancy tank 212.
  • the structure of the main buoyancy tank 210 may be removed by cutting the column 213 horizontally in case of unusual occurrences such as a change in the depth of the installation area of the selected floating legged platform installation, or the cutting portion. By adding a new column in between, it is possible to adjust the height of the optional floating leg platform installation. At this time, the upper buoyancy tank 211 drains the ballast water stored therein at the time of adjusting the height of the selected floating legged platform equipment so that the platform 100 is in a floating state, thereby cutting the column 213 and the new column. After the addition, the welding work progresses safely and smoothly.
  • the height adjustment of the selected floating leg platform equipment may be performed through the height adjustment of each leg 320 constituting the leg structure 300 to be described later, in this case, the upper buoyancy tank 211 and the lower buoyancy tank (212) All should drain the ballast water stored therein and then go up and down.
  • the upper surface of the upper buoyancy tank 211 is formed so as to be positioned higher than the water level during high water
  • the upper surface of the lower buoyancy tank 212 is formed to be positioned higher than the water level during low water
  • the upper surface of the column 213 It is formed to be positioned higher than the water level during high water, a plurality of through holes 214 are formed in the column 213 to eliminate wave resistance.
  • the above-described height of the upper surface of the main buoyancy tank 210 is higher than the water level during low tide and high tide, it is possible to prevent the platform 100 from rising by buoyancy, and also through the respective through holes
  • the formation of 214 does not resist the force provided by the wave, but rather passes it through so that the entire selective floating leg platform installation may reduce the force provided by the wave.
  • the main buoyancy tank 210 is not limited to the structure of the above-described embodiment. That is, as shown in the accompanying FIG. 8, it may be provided by forming a single body without being divided into upper and lower parts.
  • the pump chamber 220 is a structure that provides an empty space in which the pump 221 driven to fill or drain the ballast water in the main buoyancy tank 210 is provided.
  • Such a pump chamber 220 is located on either side of the circumference of the platform 100, and in particular, the upper surface of the pump chamber 220 is positioned higher than the wave height of the region and the pump chamber 220 of the pump chamber 220.
  • a hatch 222 is installed on the upper surface of the pump room 220 to allow the worker to enter the pump chamber 220 so that the worker can smoothly enter the pump chamber 220 as needed.
  • the guide duct 230 is a fluid conduit for guiding the filling or drainage flow of ballast water.
  • the guide duct 230 has a main buoyancy force. For example, it is formed through the central side of the upper buoyancy tank 211 constituting the tank 210 and the central side of the lower buoyancy tank 212.
  • leg structure 300 is configured to be seated on the sea bottom while forming the bottom portion of the selective floating leg platform installation.
  • the rock layer 400 is poured on the sea floor, and the leg structure 300 is installed on the rock layer 400 so that the selective floating leg platform equipment can be installed while maintaining the flatness.
  • the leg structure 300 includes an auxiliary buoyancy tank 310 and a plurality of legs 320.
  • the auxiliary buoyancy tank 310 is located in the lower portion of the platform 100 and the ballast water is stored to assist in the floating of the platform 100 while being placed on the bottom of the platform, or the ballast water is empty buoyancy space It is provided with a tank.
  • the auxiliary buoyancy tank 310 may be configured as a tank consisting of a single whole, but if the consideration of the filling or drainage time of the ballast water, or considering the inundation, etc. divided into a plurality of configurations arranged side by side in the horizontal direction It is preferable to.
  • the plurality of legs 320 are fixed to the upper surface of the auxiliary buoyancy tank 310 is the site where the selection floating structure 200 is mounted.
  • each leg 320 a plurality of through holes 321 are formed in each leg 320 to eliminate wave resistance, and a mounting guide 322 protrudes outward from an upper outer surface of each leg 320.
  • the mounting guide 322 is a guide for guiding the mounting of the selection floating structure 200, and is formed to be gradually inclined inward toward the outer surface of the leg 320 toward the bottom.
  • each leg 320 may be configured in a structure capable of adjusting the length.
  • each leg 320 may be provided in a form in which a plurality of legs may be connected to each other in succession, or each leg 320 may be formed in a telescopic structure to provide a structure capable of extending or contracting the length. .
  • the rock is concrete, but is not limited thereto.
  • leg structure 300 is installed on the upper surface of the planarized portion is installed (S200).
  • the leg structure 300 drains the ballast water in the auxiliary buoyancy tank 310 to float on the surface of the auxiliary buoyancy tank 310 in the empty state, and then moved to the area when the rock is poured While gradually filling the ballast water in the buoyancy tank 310 sinks to the sea floor so that the leg structure 300 is correctly seated on the seabed surface of the rock.
  • the height of the legs 320 and the auxiliary buoyancy tank 310 constituting the leg structure 300 in consideration of the highest depth (Tide), the lowest depth (Low Tide) and the maximum wave (Max Wave) of the drying area. Is determined.
  • the selection floating structure 200 on which the platform 100 is placed is prepared (S300).
  • the place where the leg structure 300 is installed Move to (S500).
  • the movement of the selection floating structure 200 on which the platform 100 is mounted uses a ship.
  • the selective floating leg platform according to the second embodiment of the present invention is a state that is placed on the sea floor, thereby being able to maintain a fixed state without being shaken or flow in the waves and wind.
  • the selective floating leg platform installation according to the second embodiment of the present invention is filled with ballast water in the main buoyancy tank 210 and the auxiliary buoyancy tank 310 as described above to sink in the water to the area Operate by performing regasification operation or power generation operation in a fixed state.
  • the main buoyancy tank 210 which drives the pump 221 provided in the pump chamber 220 to form the selection floating structure 200 is provided. And floating the ballast water in the auxiliary buoyancy tank 310 forming the leg structure 300 to float the platform 100 on the sea and towing the platform 100 suspended in the sea to the ship to move to a set point, Subsequently, when arriving at a set point, the main buoyancy tank 210 forming the selection floating structure 200 and the auxiliary buoyancy tank 310 forming the leg structure 300 are filled with ballast water to sink the selection floating structure 200.
  • the selective floating leg platform installation of the present invention is not limited to being composed only of the structure of the second embodiment described above.
  • each leg 320 constituting the column 213 or the leg structure 300 constituting the main buoyancy tank 210 is composed of a plurality of vertical frame made of a straight structure as shown in FIG. It is also possible to minimize the effects of the waves without forming the balls (214, 321).
  • auxiliary frames 215 and 323 having an inclined structure may be further provided between the 320 to be configured to reinforce the strength.
  • Selective floating leg platform equipment is the platform 100 while the selected floating structure and the leg structure is locked to the sea floor in a state of being locked to the sea floor during normal operation It is possible to ensure structural stability by not being affected by the waves or wind, and also to allow the regasification operation or the power generation operation of the platform 100 to be stably performed.
  • the selective floating leg platform installation according to the second embodiment of the present invention in consideration of the weight of the entire platform installation is to perform the function of a breakwater that is installed in close proximity to the seashore in fact, there is no need for a separate breakwater There is this.
  • the selected floating leg platform equipment according to the second embodiment of the present invention can be used as a mooring facility by itself, a separate mooring facility is unnecessary, and it is possible to be lighter than existing floating structures, and It is easy to access from the ground, and it is easy to support electricity, fresh water, steam, etc. from the land, and also additionally performs the function of the berthing facility for mooring the ship through the additional installation of the fender 160. You can do it.
  • the selective floating leg platform equipment according to the second embodiment of the present invention is configured to float and move to the sea through de-ballasting if necessary, it is manufactured in a place where production cost is low such as a shipyard. It is possible to install after moving, and after moving from one place to another, there is an advantage that work is possible.
  • the structural change such as the height adjustment of each leg 320 or the height adjustment of the column is simple and simple, and thus it is expected to improve the economic effect.

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Abstract

La présente invention permet qu'une plate-forme, qui effectue le stockage de marchandises, une regazéification, ou une opération de génération d'électricité en mer, flotte sur la mer lorsque la plate-forme se déplace au moyen d'une structure à flottement sélectif, et fixe la plate-forme à une structure de pied lorsque la plate-forme ne se déplace pas, de manière à effectuer facilement et simplement la construction et permettre que la plate-forme soit déplacée et disposée comme requis.
PCT/KR2016/007128 2015-07-02 2016-07-01 Installation de plate-forme à pieds à flottement sélectif, et procédé de construction et procédé de fonctionnement de celle-ci WO2017003258A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20150094843 2015-07-02
KR10-2015-0094843 2015-07-02
KR1020160083349A KR101715061B1 (ko) 2015-07-02 2016-07-01 선택 부유형 레그드 플랫폼 설비와 이의 건조방법 및 운용방법
KR10-2016-0083349 2016-07-01

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Publication number Priority date Publication date Assignee Title
US4118942A (en) * 1975-11-17 1978-10-10 Jean Liautaud Marine platform for offshore drilling operations and the like
JP4052406B2 (ja) * 1998-08-24 2008-02-27 独立行政法人石油天然ガス・金属鉱物資源機構 洋上移載装置
KR20100114500A (ko) * 2007-12-21 2010-10-25 테크니프 프랑스 심층 흘수 반잠수형 ｌｎｇ 부유식 생산, 저장 및 하역 베셀
KR101449691B1 (ko) * 2012-09-12 2014-10-20 한국과학기술원 가이드 파일을 이용한 해상플랫폼 및 그의 설치방법
KR20150000599A (ko) * 2013-06-25 2015-01-05 대우조선해양 주식회사 잭업리그 및 잭업리그 레그의 길이 조정 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118942A (en) * 1975-11-17 1978-10-10 Jean Liautaud Marine platform for offshore drilling operations and the like
JP4052406B2 (ja) * 1998-08-24 2008-02-27 独立行政法人石油天然ガス・金属鉱物資源機構 洋上移載装置
KR20100114500A (ko) * 2007-12-21 2010-10-25 테크니프 프랑스 심층 흘수 반잠수형 ｌｎｇ 부유식 생산, 저장 및 하역 베셀
KR101449691B1 (ko) * 2012-09-12 2014-10-20 한국과학기술원 가이드 파일을 이용한 해상플랫폼 및 그의 설치방법
KR20150000599A (ko) * 2013-06-25 2015-01-05 대우조선해양 주식회사 잭업리그 및 잭업리그 레그의 길이 조정 방법

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