WO2020075631A1 - Utilization method for existing ships - Google Patents

Utilization method for existing ships Download PDF

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Publication number
WO2020075631A1
WO2020075631A1 PCT/JP2019/039236 JP2019039236W WO2020075631A1 WO 2020075631 A1 WO2020075631 A1 WO 2020075631A1 JP 2019039236 W JP2019039236 W JP 2019039236W WO 2020075631 A1 WO2020075631 A1 WO 2020075631A1
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WO
WIPO (PCT)
Prior art keywords
hull
bow
ship
stern
existing ship
Prior art date
Application number
PCT/JP2019/039236
Other languages
French (fr)
Japanese (ja)
Inventor
泰史 塚本
健司 津村
田村　浩
伸 上田
Original Assignee
三菱造船株式会社
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 三菱造船株式会社 filed Critical 三菱造船株式会社
Priority to CN202410533254.3A priority Critical patent/CN118323385A/en
Priority to SG11202103582RA priority patent/SG11202103582RA/en
Priority to KR1020217010383A priority patent/KR20210058878A/en
Priority to KR1020237033392A priority patent/KR20230145217A/en
Priority to CN201980066425.3A priority patent/CN112805216A/en
Publication of WO2020075631A1 publication Critical patent/WO2020075631A1/en

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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 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • 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 
    • B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
    • 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
    • B63B73/10—Building or assembling vessels from prefabricated hull blocks, i.e. complete hull cross-sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B83/00—Rebuilding or retrofitting vessels, e.g. retrofitting ballast water treatment systems

Definitions

  • the present invention relates to a method of utilizing an existing ship.
  • the present application claims priority to Japanese Patent Application No. 2018-1920156 filed in Japan on October 10, 2018, the contents of which are incorporated herein by reference.
  • a ship that carries Liquefied Natural Gas (LNG), etc., has a hull and multiple tanks. These plurality of tanks are arranged side by side in the fore-and-aft direction of the hull, and each holds a load such as LNG.
  • LNG Liquefied Natural Gas
  • the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method for utilizing an existing ship that can effectively utilize the existing ship and can manufacture a ship of an appropriate scale at low cost.
  • a method of using an existing ship is: from an existing ship having a hull in which a plurality of tanks are arranged in a bow-stern direction, a part of the plurality of tanks and the hull A step of cutting out an intermediate hull part including a part of the hull in the bow-stern direction in which the part of the tank is provided as a tank unit, and in the existing ship, from the intermediate hull part cut out as the tank unit Also forming a bow-side hull portion on the bow side of the stern-side hull portion including the engine room, which is arranged on the stern side, and manufacturing a new ship.
  • the bow side hull part is formed on the bow side of the stern side hull part including the engine room. It is possible to manufacture various ships. Since the new ship includes the engine room of the existing ship, there is no need to manufacture a particularly expensive engine room, which is particularly effective for cost reduction. Further, the cut-out intermediate hull portion can be used as a tank unit of a floating storage facility. In this way, by effectively utilizing the existing ship and manufacturing the new ship and the tank unit, the manufacturing cost of the ship and the tank unit can be suppressed.
  • the bow side hull section according to the first aspect uses the bow side hull section of the existing ship that is arranged on the bow side of the intermediate hull section of the existing ship. May be. With such a configuration, not only the stern-side hull portion but also the bow-side hull portion can be formed by effectively utilizing the existing ship. Therefore, the manufacturing cost of the ship can be further reduced.
  • the bow in the step of manufacturing the new ship according to the first or second aspect, is provided between the rear end of the bow side hull and the front end of the stern side hull.
  • the bow side hull and the stern side hull can be connected via the connecting hull.
  • the bow hull part for connection should be satisfactorily connected to the bow hull part and the stern side hull part.
  • various devices can be installed in the additional connection hull.
  • the method of using the existing ship according to any one of the first to third aspects may further include a step of installing the tank unit as a floating storage facility. .
  • the existing ship can be effectively used.
  • the floating-type storage facility thus formed has a length in the fore-and-aft direction that is smaller than that of an existing ship, and therefore can be installed even when the space for mooring is limited. Therefore, the degree of freedom of the installation location of the floating storage facility is increased.
  • the number of tanks provided in the tank unit may be determined as necessary, it is possible to provide a floating-type storage facility having a loading capacity according to the application.
  • the method of using the existing ship according to the fourth aspect prior to the step of installing the tank unit as the floating storage facility, a step of attaching a float to the tank unit,
  • the method may further include a step of attaching an outfitting component as a floating storage facility to at least one of the tank unit and the float.
  • the mooring space when the mooring space is limited or the mooring space is shallow, the mooring space can be installed, and the degree of freedom of the installation place of the floating storage facility is increased. Moreover, since the number of tanks included in the tank unit may be determined as necessary, it is possible to provide a floating-type storage facility having a loading amount according to the application.
  • FIG. 9 is a side view showing a state in which a bow side hull portion and a stern side hull portion of an existing ship are joined in the method of using the existing ship.
  • FIG. 9 is a plan view showing a state in which a bow side hull portion and a stern side hull portion of an existing ship are joined in the above-described method of using the existing ship.
  • FIG. 1 is a side view showing a schematic configuration of an existing ship used in the method of using the existing ship of this embodiment.
  • the existing ship 1 includes a hull 2 and a plurality of tanks 3. It has a pair of port sides 2s provided on both sides in the ship width direction and a ship bottom 2b.
  • the hull 2 includes an upper deck 2t that is provided above the ship bottom 2b with a space therebetween.
  • the hull 2 has an upper structure 2h that forms a living room or the like on the stern 2r side in the bow-stern direction Da.
  • the hull 2 includes a cargo loading section (hold) 2k on the bow 2a side in the bow-stern direction Da with respect to the upper structure 2h.
  • an engine room 2m including a main engine for propelling the existing ship 1 is provided on the stern 2r side in the bow-stern direction Da.
  • the upper deck 2t is a fully exposed deck that is exposed to the outside, and is provided so as to cover the cargo loading section 2k above.
  • the plurality of tanks 3 are independent tanks, and the liquefied gas such as LNG, which is a load, is housed inside the tanks 3.
  • the tank 3 is formed of, for example, an aluminum alloy in order to ensure toughness in a low temperature atmosphere and corrosion resistance.
  • a plurality of tanks 3 are arranged in the cargo loading section 2k in the hull 2 in the bow-aft direction Da.
  • the existing ship 1 in this embodiment exemplifies a case in which five tanks 3 which are moss-type independent spherical tanks are provided.
  • the upper portions 3a of the tanks 3 are arranged above the upper deck 2t.
  • FIG. 2 is a flowchart of a method of using the existing ship.
  • FIG. 3 is a side view showing a state in which the intermediate hull portion of the existing ship is cut out in the method of using the existing ship.
  • a method of using an existing ship using the existing ship 1 is a tank unit cutting step S1, a hull joining step (a step of manufacturing a new ship) S2, a float attaching step S3, and outfitting equipment. It includes an attaching step S4 and an installing step S5.
  • the intermediate hull parts 5C and 5D which are the middle parts in the bow-stern direction Da, are cut out from the existing ship 1.
  • the intermediate hull portions 5C and 5D are, respectively, a part of the plurality of tanks 3 and a part of the hull 2 of the existing ship 1 which is provided with the part of the tanks 3 described above. This is a portion including a part of the hull 2 in the direction Da.
  • the hull 2 of the existing ship 1 is cut at positions P1, P2, P3 spaced apart in the bow-aft direction Da, respectively. These positions P1, P2, P3 are set between the tanks 3 that are adjacent to each other in the bow-stern direction Da. In this way, by cutting the hull 2 at the positions P1, P2, and P3, respectively, the existing ship 1 has the two intermediate hull parts 5C and 5D, which are arranged in the middle part in the bow-stern direction Da, and the intermediate hull.
  • a bow-side hull portion 5A arranged on the bow 2a side of the portions 5C and 5D and a stern-side hull portion 5B arranged on the stern 2r side of the intermediate hull portions 5C and 5D.
  • the stern side hull portion 5B includes an engine room 2m and an upper structure 2h.
  • the intermediate hull portion 5C in this embodiment includes the hull 2C between the position P1 and the position P2 which is a part of the intermediate portion in the bow-stern direction Da, and the second tank 3B from the bow 2a side.
  • the intermediate hull portion 5D includes a hull 2D between a position P2 and a position P3 which is a part of an intermediate portion in the bow-stern direction Da, and a third tank 3C from the bow 2a side.
  • the intermediate hull portions 5C and 5D include the tanks 3B and 3C that are arranged in the middle portion in the bow-stern direction Da among the plurality of tanks 3. In this way, the intermediate hull parts 5C and 5D are cut out from the existing ship 1 as the two tank units 31A and 31B.
  • FIG. 4 is a side view showing a state in which the bow side hull portion and the stern side hull portion of the existing ship are joined in the above-described method of using the existing ship.
  • FIG. 5 is a plan view showing a state in which the bow side hull portion and the stern side hull portion of the existing ship are joined in the above-described method of using the existing ship.
  • the rear end 5r of the bow side hull portion 5A and the front end 5f of the stern side hull portion 5B are joined.
  • the rear end 5r of the bow side hull portion 5A and the front end 5f of the stern side hull portion 5B are joined mainly by welding.
  • connection plate 8 may be provided between the front end 5f and the front end 5f so as to extend in the plane direction intersecting the bow-stern direction Da.
  • a part or all of the manifold 23 provided in the existing ship 1 is arranged in the intermediate hull parts 5C and 5D, a part or all of the manifold 23 is provided in the bow side hull part 5A. May be.
  • the cargo device 24 such as the compressor is provided in the stern side hull portion 5B of the existing ship 1, and therefore may be provided at the position as it is.
  • the ship 10A After joining the rear end 5r of the bow side hull portion 5A and the front end 5f of the stern side hull portion 5B, various pipes and wires are connected between the bow side hull portion 5A and the stern side hull portion 5B. By doing this, a new ship 10A is manufactured.
  • the ship 10A has a hull 2X which is shorter than the existing ship 1 (see FIG. 1) in the bow-stern direction Da. Further, the ship 10A has a smaller number of tanks 3 than the existing ship 1.
  • FIG. 6 is a perspective view showing a floating-type storage facility manufactured by the method of utilizing the existing ship.
  • FIG. 7 is a side view showing a floating body type storage facility manufactured by the above-described method of utilizing an existing ship.
  • the first float portion (closure body) 33A and the second float portion (closure body) are provided on both sides in the bow-aft direction Da.
  • 33B is attached by welding.
  • Each of the first float portion 33A and the second float portion 33B has a pair of port sides 33s provided on both sides in the ship width direction and a ship bottom 33b.
  • the first float portion 33A and the second float portion 33B further include an upper deck 33t provided above the ship bottom 33b with a space. Further, the first float portion 33A and the second float portion 33B integrally have a tank unit connecting portion 33c and an end plate 33d.
  • the tank unit connection portion 33c of the first float portion 33A is formed on the side facing the tank units 31A and 31B of the first float portion 33A in the bow-aft direction Da.
  • the tank unit connecting portion 33c of the second float portion 33B is formed on the side facing the tank units 31A and 31B of the second float portion 33B in the bow-aft direction Da.
  • the cross-sectional contour of the tank unit connecting portion 33c viewed from the bow-stern direction Da in other words, the hull cross-sectional shape orthogonal to the bow-stern direction Da of the tank unit connecting portion 33c.
  • the end plate 33d is formed on each of the first float portion 33A and the second float portion 33B on the side separated from the tank units 31A, 31B in the bow-stern direction Da (in other words, on the opposite side of the tank unit connection portion 33c). Has been done.
  • the end plate 33d is provided so as to close a portion (opening) surrounded by the pair of port sides 33s, the ship bottom 33b, and the upper deck 33t in the first float portion 33A and the second float portion 33B.
  • a hollow structure is provided with a cavity 34, respectively.
  • the buoyancy of the first float portion 33A and the second float portion 33B is imparted by these voids 34.
  • the void 34 can be used as a ballast tank.
  • the vacant space 34 can also be used as an engine room, a living space, other tanks, or the like. In this way, the first float portion 33A and the second float portion 33B are attached to each of the tank units 31A and 31B.
  • the first float portion 33A and the second float portion 33B as described above are, in the intermediate hull portions 5C and 5D forming the tank units 31A and 31B, portions where the pair of port sides 2s and the bottom 2b open in the bow-stern direction Da. It is blocking.
  • the equipment 40 required as the floating storage equipment 30A, 30B is mounted on the tank units 31A, 31B, the first float portion 33A, and the second float portion 33B.
  • the outfit 40 in this embodiment is provided on each of the first float portion 33A and the second float portion 33B.
  • the equipment 40 include a mooring device 35, a manifold 38 for unloading LNG in the tanks 3B and 3C, a generator (not shown), and the like.
  • a regasification device 39 that heats and regasifies LNG stored in the tanks 3B and 3C is provided as the outfit 40.
  • These outfittings 40 are provided on at least one of the tank units 31A and 31B, the first float portion 33A, and the second float portion 33B.
  • the two floating body storage facilities 30A and 30B are installed. It is configured. Further, such floating body storage facilities 30A and 30B respectively include the tank units 31A and 31B, and the first float portion 33A and the second float portion 33B provided on both sides of the tank units 31A and 31B in the bow-stern direction Da. And the outfitting equipment 40 as the floating storage facilities 30A and 30B.
  • the two floating storage facilities 30A and 30B manufactured in this manner are laid at a predetermined position such as a harbor and installed.
  • the bow side hull part 5A including the engine room 2m is cut out.
  • a new ship 10A can be manufactured by providing the stern side hull portion 5B.
  • the cut-out intermediate hull portions 5C and 5D can be used as tank units 31A and 31B of the floating body storage facilities 30A and 30B. In this way, by effectively utilizing the existing ship 1, the new ship 10A and the floating storage equipment 30A, 30B are manufactured, thereby suppressing the manufacturing costs of the ship 10A and the floating storage equipment 30A, 30B.
  • the new ship 10A includes the engine room 2m of the existing ship 1, there is no need to newly manufacture the engine room 2m, which is particularly costly, and it is particularly effective for cost reduction. Further, the newly manufactured ship 10A can be manufactured with a shorter length in the bow-stern direction Da and a smaller number of tanks 3 than the existing ship 1. Such a ship 10A has a small load capacity of the load accommodated in the tank 3 and can be turned quickly. Therefore, it is advantageous when the large existing vessel 1 is inefficient or is a port or route that is difficult to navigate. Further, since the total weight of the ship 10A is smaller than that of the existing ship 1, the fuel consumption rate of the propulsion engine for navigation is also improved. In this way, it becomes possible to effectively use the existing ship 1 including the plurality of tanks 3.
  • the bow side hull portion 5A the one that is arranged closer to the bow 2a side than the intermediate hull portions 5C and 5D in the existing ship 1 is used. With such a configuration, not only the stern-side hull portion 5B but also the bow-side hull portion 5A can be formed by effectively utilizing the existing ship 1. Therefore, the manufacturing cost of the ship 10A can be further reduced.
  • the existing ship 1 can be effectively used.
  • the floating storage facilities 30A and 30B formed in this manner have a smaller length in the bow-stern direction Da than the existing ship 1, they can be installed even when the mooring space is limited. Therefore, the degree of freedom of the installation location of the floating body storage equipment 30A, 30B is increased.
  • the number of tanks 3 provided in the tank units 31A and 31B may be determined as necessary, it is possible to provide the floating body type storage equipment 30A and 30B having a loading amount according to the application. Further, a plurality of floating body type storage facilities 30A and 30B can be manufactured from one existing vessel 1, which is also excellent in cost.
  • the existing vessel 1 can be effectively used and required.
  • Floating body type storage facilities 30A and 30B having a function can be manufactured.
  • the draft can be made shallow by providing the first float portion 33A and the second float portion 33B.
  • the installation can be performed, and the degree of freedom of the installation location of the floating storage facilities 30A and 30B is increased.
  • the number of the tanks 3 included in the tank units 31A and 31B may be determined as necessary, it is possible to provide the floating-type storage facilities 30A and 30B having a loading amount according to the application.
  • FIG. 8 is a flowchart of the method of using the existing ship according to the second embodiment of the present invention.
  • FIG. 9 is a side view showing a ship manufactured by the method of using the existing ship.
  • FIG. 10 is a plan view showing a ship manufactured by the method of using the existing ship.
  • a method of using an existing ship using the existing ship 1 according to the second embodiment is a tank unit cutting step S1, a connecting hull inserting step S12, a hull joining step S13, and a float attaching step. It includes S3, a fitting attachment step S4, and an installation step S5.
  • the intermediate hull parts 5C and 5D are cut out from the existing ship 1 as in the first embodiment (see FIG. 3).
  • the connecting hull insertion step S12 As shown in FIGS. 9 and 10, the rear end 5r of the bow-side hull portion 5A, which is arranged on the bow 2a side of the cut intermediate hull portions 5C and 5D, and the intermediate hull
  • the connecting hull portion 20 is inserted between the front end 5f of the stern side hull portion 5B which is arranged on the stern 2r side of the portions 5C and 5D.
  • the connecting hull portion 20 is connected to the bow side hull portion 5A and the stern side hull portion 5B respectively in a hull joining step S13 described below.
  • the connecting hull portion 20 integrally includes a bow-side connecting portion 20a, a stern-side connecting portion 20r, and an intermediate connecting portion 20c.
  • the cross-sectional contour of the bow-side connecting portion 20a viewed from the bow-stern direction Da, in other words, the hull cross-sectional shape of the bow-side connecting portion 20a orthogonal to the bow-stern direction Da is the cutting surface of the rear end 5r of the bow-side hull portion 5A. It has the same shape as the contour.
  • the cross-sectional contour of the stern-side connecting portion 20r viewed from the stern-side direction Da is the cutting of the front end 5f of the stern-side hull portion 5B. It has the same shape as the contour of the surface.
  • the intermediate connecting portion 20c is formed so as to continuously connect the bow-side connecting portion 20a and the stern-side connecting portion 20r. That is, the connecting hull portion 20 is provided so that the outer surface of the hull 2Y is continuous between the bow side hull portion 5A and the stern side hull portion 5B.
  • the connecting hull portion 20 may make the length L in the bow-stern direction Da smaller than the length in the bow-stern direction Da for one tank 3. By doing so, it is possible to prevent the length of the boat 10B in the bow-stern direction Da from increasing.
  • the connecting hull portion 20 has a pair of port sides 20s provided on both sides in the ship width direction and a ship bottom 20b.
  • the connecting hull portion 20 includes an upper deck 20t that is provided above the ship bottom 20b with a gap.
  • connection pipe and the connection wiring 21 include a bow side pipe and a bow side wiring 6 provided in the bow side hull portion 5A, and a stern side pipe and a stern side wiring 7 provided in the stern side hull portion 5B. Connecting.
  • the bow side hull portion 5A and the stern side hull portion 5B are joined via the connecting hull portion 20.
  • the rear end 5r of the bow side hull portion 5A and the bow side connecting portion 20a of the connecting hull portion 20 are joined by welding, and the front end 5f of the stern side hull portion 5B and the connecting hull portion 20 are connected.
  • the stern-side connecting portion 20r is joined by welding.
  • the upper deck 20t of the connecting hull portion 20 and the upper deck 2t of the bow side hull portion 5A and the stern side hull portion 5B are further joined by welding.
  • the bow side piping and the bow side wiring 6 and the stern side piping and the stern side wiring 7 are further connected to the connecting piping and the connecting wiring 21 in the connecting hull portion 20, respectively.
  • the manifold 23 may be provided in the connecting hull section 20.
  • the connecting hull portion 20 may be provided with cargo equipment 24 such as a compressor provided in the existing vessel 1.
  • the boat 10B may be provided with a ballast tank 25 or the like for improving the balance of the boat 10B due to the cutout of the intermediate hulls 5C and 5D in the connecting hull 20.
  • the connecting hull 20 may be provided with various devices such as a regasification device and a ballast treatment device (both not shown), an article storage space, and the like.
  • the boat 10B is manufactured by additionally installing the connecting hull portion 20 between the bow side hull portion 5A and the stern side hull portion 5B.
  • the intermediate hull portions 5C and 5D cut out from the existing ship 1 in the tank unit cutting out step S1 go through the float attaching step S3, the outfitting attaching step S4, and the installing step S5, as in the first embodiment.
  • the floating storage facilities 30A and 30B as shown in FIGS. 6 and 7 are laid up at a predetermined position such as a harbor.
  • the engine room 2m is removed.
  • a new ship 10B can be manufactured by providing the stern side hull portion 5B including the bow side hull portion 5A. Further, the cut out intermediate hull portions 5C and 5D can be used as tank units 31A and 31B to manufacture the floating body storage facilities 30A and 30B. In this way, by effectively utilizing the existing ship 1, the new ship 10B and the floating storage equipment 30A, 30B are manufactured, thereby suppressing the manufacturing costs of the ship 10B and the floating storage equipment 30A, 30B.
  • the new ship 10B includes the engine room 2m of the existing ship 1, there is no need to newly manufacture the engine room 2m which is particularly costly, which is particularly effective for cost reduction.
  • the newly manufactured ship 10B can be manufactured with a shorter length Da in the bow-stern direction than the existing ship 1 and a smaller number of tanks 3 than the existing ship 1. In such a ship 10B, the load capacity of the cargo to be stored in the tank 3 is small, and the small turn can be achieved.
  • the intermediate hull portions 5C and 5D including the two tanks 3 are cut off from the existing ship 1, and the bow side hull part 5A and the stern side hull part 5B are separated.
  • a connecting hull portion 20 is additionally provided between them.
  • the ship 10 ⁇ / b> B including the hull 2 ⁇ / b> Y having a shorter length in the bow-stern direction Da than the existing ship 1 and the tank 3 having the smaller number can be manufactured from the existing ship 1. In this way, it becomes possible to effectively use the existing ship 1 including the plurality of tanks 3.
  • the bow-side hull portion 5A and the front end 5f of the stern-side hull portion 5B greatly differ in cross-sectional shape due to the connecting hull portion 20, the bow-side hull portion 5A and the stern side
  • the hull portion 5B can be satisfactorily connected to the hull portion 20 for connection.
  • various devices and the like can be installed in the additional connection hull 20.
  • the connecting hull portion 20 includes the bow-side connecting portion 20a and the stern-side connecting portion 20r, the bow-side hull portion 5A and the stern-side hull portion 5B can be continuously connected.
  • the connecting hull portion 20 includes connecting pipes and connecting wires 21.
  • the bow side piping and the bow side wiring 6 provided in the bow side hull portion 5A and the stern side piping and the stern side wiring 7 provided in the stern side hull portion 5B It can be connected via the wiring 21.
  • the bow-side hull portion 5A and the stern-side hull portion 5B are part of the same existing ship 1, the bow-side piping and the bow-side wiring 6 and the stern-side piping and the stern-side wiring 7 are in the bow-stern direction. In many cases, they are arranged at the same position on the cross section orthogonal to Da. Therefore, the bow side piping and the bow side wiring 6 and the stern side piping and the stern side wiring 7 can be particularly easily connected via the connecting piping and the connecting wiring 21.
  • the floating storage facilities 30A and 30B are formed by attaching the first float portion 33A and the second float portion 33B to the tank units 31A and 31B cut out from the existing ship 1.
  • FIG. 11 is a perspective view which shows the modification of the floating type storage installation manufactured by the said utilization method of the existing ship.
  • the tank unit 31C intermediate hull portion 5C
  • partition walls 9 (9A, 9B) at both ends in the bow-aft direction Da, respectively.
  • the first float portion 33A and the second float portion 33B may not be attached to the tank unit 31C.
  • the partition wall 9A provided at one end of the bow-stern direction Da is provided on the bow 2a side in the bow-stern direction Da with respect to the tank 3C.
  • the partition wall 9B provided on the other end of the stern direction Da is provided on the stern 2r side in the stern direction Da with respect to the tank 3C.
  • both end portions of the tank unit 31C in the bow-stern direction Da are closed by the partition walls 9 (9A, 9B) at portions where the pair of port sides 2s and the ship bottom 2b open in the bow-stern direction Da.
  • Such a tank unit 31C can be installed as it is as a floating body storage facility 30C.
  • the present invention is not limited to the above-described embodiment, and includes various modifications of the above-described embodiment without departing from the spirit of the present invention. That is, the specific shape, configuration, and the like described in the embodiment are merely examples, and can be appropriately changed.
  • the newly manufactured ships 10A and 10B are configured to join the stern side hull portion 5B and the bow side hull portion 5A obtained from the existing ship 1, but the present invention is not limited to this.
  • a stern side hull portion 5B obtained from the existing ship 1 may be joined to a newly manufactured bow side hull part or a bow side hull part cut out from another existing ship.
  • the newly manufactured ship is at least the engine of the existing ship 1. Includes a 2m room. As a result, there is no need to newly manufacture the engine room 2m, which is particularly costly, and it is particularly effective in reducing the manufacturing cost of the ship.
  • the two tank units 31A and 31B are cut out from the existing ship 1, but the number of tank units cut out from the existing ship 1 is only one, or It may be three or more. Further, the intermediate hull portion having a plurality of tanks may be cut out from the existing ship 1 as one tank unit. As a result, it is possible to manufacture a floating storage facility including a plurality of tanks.
  • the intermediate hull portions 5C and 5D are configured to include the second tank 3B and the third tank 3C from the bow 2a side, but not limited to this.
  • the intermediate hull portions 5C and 5D may include the tank 3 arranged in the middle portion in the bow-stern direction Da among the plurality of tanks 3, and may include the tank 3 on the bow side in the bow-stern direction Da and the tank 3 on the stern side. May be included.
  • the number of tanks 3 of the existing ship 1, the number of tanks 3 to be cut from the existing ship 1, the number of tanks 3 of the ships 10A and 10B, and the shape of the tank 3 may be any.
  • the tank 3 is not limited to one that stores LNG, and may be one that stores another load such as liquefied petroleum gas (LPG).
  • LPG liquefied petroleum gas

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Abstract

This utilization method for an existing ship (1) includes: a step in which some tanks (3), out of a plurality of tanks (3), and intermediate hull sections (5C, 5D), including some of the hull in the bow–stern direction (Da) of the ship that has some of the tanks (3) provided therein, are cut out as tank units (31A, 31B), from an existing ship (1) having a hull having the plurality of tanks (3) arranged in the bow–stern direction (Da); and a step in which a new ship is produced by providing a bow-side ship hull section (5A) in a stern-side ship hull section (5B) after tank units (31A, 31B) have been cut out from the existing ship (1), said stern-side ship hull section including an engine room (2m) and being arranged further on the stern (2r) side than the intermediate hull sections (5C, 5D).

Description

既存船舶の利用方法How to use existing vessels
　この発明は、既存船舶の利用方法に関する。
　本願は、２０１８年１０月１０日に日本に出願された特願２０１８－１９２０５６号について優先権を主張し、その内容をここに援用する。 The present invention relates to a method of utilizing an existing ship.
The present application claims priority to Japanese Patent Application No. 2018-1920156 filed in Japan on October 10, 2018, the contents of which are incorporated herein by reference.
　液化天然ガス（ＬＮＧ：Ｌｉｑｕｅｆｉｅｄ　Ｎａｔｕｒａｌ　Ｇａｓ）等を運搬する船舶は、船体と、複数のタンクとを備えている。これら複数のタンクは、船体の船首尾方向に並べて設けられ、それぞれにＬＮＧ等の積載物を収容する。 A ship that carries Liquefied Natural Gas (LNG), etc., has a hull and multiple tanks. These plurality of tanks are arranged side by side in the fore-and-aft direction of the hull, and each holds a load such as LNG.
　例えば、特許文献１に開示されているように、ＬＮＧを運搬する船舶が大型化する傾向にあるのに対し、近距離輸送や沿海の域内２次輸送に適した中規模容積の輸送船の需要が存在する。 For example, as disclosed in Patent Document 1, while vessels that carry LNG tend to be large, demand for medium-sized transport vessels suitable for short-distance transportation and secondary transportation in coastal areas Exists.
特開２０１６－２２９３１号公報JP, 2016-22931, A
　しかしながら、船舶を新たに製造するには、多大なコストが掛かる。特に、船舶の推進機関や居住区等には、大きなコストが掛かる。 However, it costs a lot of money to manufacture a new ship. In particular, a propulsion engine of a ship, a living area, and the like are expensive.
　ところで、船舶は、例えば二十年以上といった長期間にわたって使用される。その一方で、上記のような船舶は、時代とともに大型化が図られたり、推進機関の進歩により、航行時の燃料消費率が向上したりしている。そのため、旧型の船舶は、まだ使用可能であるにもかかわらず、稼働率が低くなる傾向にある。ＬＮＧ等を運搬する船舶の場合、タンクはアルミニウム合金等の腐食し難い材質で形成されているため、利用価値が高い。そのため、船体や推進機関が利用可能な状態にあれば、船舶を有効活用したいという要望がある。
　この発明は、上記事情に鑑みてなされたものであり、既存船舶を有効利用し、適切な規模の船舶を低コストで製造することができる既存船舶の利用方法を提供することを目的とする。 By the way, ships are used for a long period of time, for example, 20 years or more. On the other hand, ships such as those mentioned above are becoming larger in size with the times, and the fuel consumption rate during navigation is improving due to the progress of propulsion engines. As a result, older vessels tend to have lower utilization rates, even though they are still available. In the case of a ship that carries LNG or the like, the tank is highly useful because it is made of a material such as an aluminum alloy that does not easily corrode. Therefore, if the hull and the propulsion mechanism are available, there is a demand to effectively utilize the ship.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a method for utilizing an existing ship that can effectively utilize the existing ship and can manufacture a ship of an appropriate scale at low cost.
　この発明は、上記課題を解決するため、以下の手段を採用する。
　この発明の第一態様によれば、既存船舶の利用方法は、複数のタンクが船首尾方向に配列された船体を有する既存船舶から、前記複数のタンクのうち一部のタンク及び、前記船体のうち前記一部のタンクが設けられている船首尾方向の一部の船体を含む中間船体部を、タンクユニットとして切り出す工程と、前記既存船舶において、前記タンクユニットとして切り出された前記中間船体部よりも船尾側に配置されていた、機関室を含む船尾側船体部の船首側に、船首側船体部を形成することで、新たな船舶を製造する工程と、を含む。 The present invention employs the following means in order to solve the above problems.
According to the first aspect of the present invention, a method of using an existing ship is: from an existing ship having a hull in which a plurality of tanks are arranged in a bow-stern direction, a part of the plurality of tanks and the hull A step of cutting out an intermediate hull part including a part of the hull in the bow-stern direction in which the part of the tank is provided as a tank unit, and in the existing ship, from the intermediate hull part cut out as the tank unit Also forming a bow-side hull portion on the bow side of the stern-side hull portion including the engine room, which is arranged on the stern side, and manufacturing a new ship.
　このように構成することで、既存船舶から、一部のタンクを含む中間船体部を切り出した後、機関室を含む船尾側船体部の船首側に、船首側船体部を形成することで、新たな船舶を製造することができる。新たな船舶は、既存船舶の機関室を含んでいるので、特にコストが掛かる機関室を新たに製造する必要が無く、コスト低減に特に有効である。また、切り出した中間船体部は、浮体式貯留設備のタンクユニットとして用いることができる。このようにして、既存船舶を有効利用して、新たな船舶と、タンクユニットとを製造することで、船舶やタンクユニットの製造コストを抑えることができる。 With this configuration, after cutting out the intermediate hull part including some tanks from the existing ship, the bow side hull part is formed on the bow side of the stern side hull part including the engine room. It is possible to manufacture various ships. Since the new ship includes the engine room of the existing ship, there is no need to manufacture a particularly expensive engine room, which is particularly effective for cost reduction. Further, the cut-out intermediate hull portion can be used as a tank unit of a floating storage facility. In this way, by effectively utilizing the existing ship and manufacturing the new ship and the tank unit, the manufacturing cost of the ship and the tank unit can be suppressed.
　この発明の第二態様によれば、第一態様に係る船首側船体部は、前記既存船舶の前記中間船体部よりも船首側に配置されていた前記既存船舶の船首側船体部を用いるようにしてもよい。
　このように構成することで、船尾側船体部だけでなく、船首側船体部についても、既存船舶を有効利用して形成することができる。したがって、船舶の製造コストをさらに抑えることができる。 According to the second aspect of the present invention, the bow side hull section according to the first aspect uses the bow side hull section of the existing ship that is arranged on the bow side of the intermediate hull section of the existing ship. May be.
With such a configuration, not only the stern-side hull portion but also the bow-side hull portion can be formed by effectively utilizing the existing ship. Therefore, the manufacturing cost of the ship can be further reduced.
　この発明の第三態様によれば、第一又は第二態様に係る新たな船舶を製造する工程では、前記船首側船体部の後端と前記船尾側船体部の前端との間に、前記船首側船体部と前記船尾側船体部とを接続する接続用船体部を追設するようにしてもよい。
　このように構成することで、船首側船体部と船尾側船体部とを、接続用船体部を介して接続することができる。これにより、船首側船体部の後端と船尾側船体部の前端との船体断面形状が大きく異なる場合等に、接続用船体部によって船首側船体部と船尾側船体部とを良好に接続することができる。また、追設した接続用船体部に、各種の機器等を設置することもできる。 According to the third aspect of the present invention, in the step of manufacturing the new ship according to the first or second aspect, the bow is provided between the rear end of the bow side hull and the front end of the stern side hull. You may make it add the hull part for connection which connects a side hull part and the said stern side hull part.
With this configuration, the bow side hull and the stern side hull can be connected via the connecting hull. As a result, when the hull cross-sectional shapes of the rear end of the bow side hull and the front end of the stern side hull part are greatly different, etc., the bow hull part for connection should be satisfactorily connected to the bow hull part and the stern side hull part. You can In addition, various devices can be installed in the additional connection hull.
　この発明の第四態様によれば、第一から第三態様の何れか一つの態様に係る既存船舶の利用方法は、前記タンクユニットを、浮体式貯留設備として設置する工程をさらに含むようにしてもよい。
　このように、既存船舶の一部をタンクユニットとして切り出し、浮体式貯留設備として設置することで、既存船舶を有効利用することができる。また、このようにして形成された浮体式貯留設備は、既存船舶よりも船首尾方向の長さが小さくなるため、係留するスペースが限られる場合でも、設置することが可能となる。したがって、浮体式貯留設備の設置場所の自由度が高まる。また、必要に応じて、タンクユニットに備えるタンクの数を決めれば良いので、用途に応じた積載量を有した浮体式貯留設備を提供することができる。 According to the fourth aspect of the present invention, the method of using the existing ship according to any one of the first to third aspects may further include a step of installing the tank unit as a floating storage facility. .
In this way, by cutting out a part of the existing ship as a tank unit and installing it as a floating storage facility, the existing ship can be effectively used. Further, the floating-type storage facility thus formed has a length in the fore-and-aft direction that is smaller than that of an existing ship, and therefore can be installed even when the space for mooring is limited. Therefore, the degree of freedom of the installation location of the floating storage facility is increased. Moreover, since the number of tanks provided in the tank unit may be determined as necessary, it is possible to provide a floating-type storage facility having a loading capacity according to the application.
　この発明の第五態様によれば、第四態様に係る既存船舶の利用方法は、前記タンクユニットを、前記浮体式貯留設備として設置する工程に先立ち、前記タンクユニットに、フロートを取り付ける工程と、前記タンクユニット及び前記フロートの少なくとも一方に浮体式貯留設備としての艤装品を取り付ける工程と、をさらに含むようにしてもよい。
　このように、既存船舶の一部から切り出したタンクユニットに、フロートや艤装品を追加することで、既存船舶を有効利用しながら、所要の機能を備えた浮体式貯留設備を製造することができる。また、フロートを設けることで、喫水を浅くすることができる。これにより、係留するスペースが限られる場合や、水深が浅い場所でも、設置することが可能となり、浮体式貯留設備の設置場所の自由度が高まる。また、必要に応じて、タンクユニットが有するタンクの数を決めれば良いので、用途に応じた積載量を有した浮体式貯留設備を提供することができる。 According to a fifth aspect of the present invention, the method of using the existing ship according to the fourth aspect, prior to the step of installing the tank unit as the floating storage facility, a step of attaching a float to the tank unit, The method may further include a step of attaching an outfitting component as a floating storage facility to at least one of the tank unit and the float.
In this way, by adding floats and outfittings to the tank unit cut out from a part of the existing ship, it is possible to manufacture the floating storage facility with the required functions while effectively using the existing ship. . Moreover, the draft can be made shallow by providing the float. As a result, when the mooring space is limited or the mooring space is shallow, the mooring space can be installed, and the degree of freedom of the installation place of the floating storage facility is increased. Moreover, since the number of tanks included in the tank unit may be determined as necessary, it is possible to provide a floating-type storage facility having a loading amount according to the application.
　上記既存船舶の利用方法によれば、既存船舶を有効利用し、適切な規模の船舶を低コストで製造することが可能となる。 According to the above-mentioned method of using an existing ship, it is possible to effectively use the existing ship and manufacture a ship of an appropriate scale at low cost.
この発明の第一実施形態の既存船舶の利用方法で用いる既存船舶の概略構成を示す側面図である。It is a side view which shows the schematic structure of the existing ship used by the usage method of the existing ship of 1st embodiment of this invention. 上記既存船舶の利用方法のフローチャートである。It is a flowchart of the utilization method of the said existing ship. 上記既存船舶の利用方法において、既存船舶の中間船体部を切り出した状態を示す側面図である。It is a side view which shows the state which cut out the intermediate hull part of the existing ship in the usage method of the said existing ship. 上記既存船舶の利用方法において、既存船舶の船首側船体部と船尾側船体部とを接合した状態を示す側面図である。FIG. 9 is a side view showing a state in which a bow side hull portion and a stern side hull portion of an existing ship are joined in the method of using the existing ship. 上記既存船舶の利用方法において、既存船舶の船首側船体部と船尾側船体部とを接合した状態を示す平面図である。FIG. 9 is a plan view showing a state in which a bow side hull portion and a stern side hull portion of an existing ship are joined in the above-described method of using the existing ship. 上記既存船舶の利用方法で製造される浮体式貯留設備を示す斜視図である。It is a perspective view which shows the floating storage equipment manufactured by the utilization method of the said existing ship. 上記既存船舶の利用方法で製造される浮体式貯留設備を示す側面図である。It is a side view which shows the floating storage equipment manufactured by the using method of the said existing ship. この発明の第二実施形態の既存船舶の利用方法のフローチャートである。It is a flowchart of the utilization method of the existing ship of 2nd embodiment of this invention. 上記既存船舶の利用方法によって製造した船舶を示す側面図である。It is a side view which shows the ship manufactured by the utilizing method of the said existing ship. 上記既存船舶の利用方法によって製造した船舶を示す平面図である。It is a top view which shows the ship manufactured by the utilization method of the said existing ship. 上記既存船舶の利用方法で製造される浮体式貯留設備の変形例を示す斜視図である。It is a perspective view which shows the modification of the floating storage equipment manufactured by the using method of the said existing ship.
　以下、この発明の一実施形態における既存船舶の利用方法を図面に基づき説明する。
（第一実施形態）
　この実施形態の既存船舶の利用方法は、既存船舶を利用して、船舶を製造する。
　図１は、この実施形態の既存船舶の利用方法で用いる既存船舶の概略構成を示す側面図である。
　図１に示すように、既存船舶１は、船体２と、複数のタンク３と、を備える。船幅方向両側に設けられた一対の舷側２ｓと、船底２ｂと、を有する。船体２は、船底２ｂの上方に間隔をあけて設けられた上甲板２ｔを備える。船体２は、船首尾方向Ｄａの船尾２ｒ側に、居室部等を形成する上部構造２ｈを有する。船体２は、上部構造２ｈよりも船首尾方向Ｄａの船首２ａ側に貨物搭載区画（ホールド）２ｋを備えている。また、船体２内には、船首尾方向Ｄａの船尾２ｒ側に、既存船舶１を推進させるための主機を含む機関室２ｍが設けられている。 Hereinafter, a method of using an existing ship according to an embodiment of the present invention will be described with reference to the drawings.
(First embodiment)
The method of using the existing ship of this embodiment uses the existing ship to manufacture the ship.
FIG. 1 is a side view showing a schematic configuration of an existing ship used in the method of using the existing ship of this embodiment.
As shown in FIG. 1, the existing ship 1 includes a hull 2 and a plurality of tanks 3. It has a pair of port sides 2s provided on both sides in the ship width direction and a ship bottom 2b. The hull 2 includes an upper deck 2t that is provided above the ship bottom 2b with a space therebetween. The hull 2 has an upper structure 2h that forms a living room or the like on the stern 2r side in the bow-stern direction Da. The hull 2 includes a cargo loading section (hold) 2k on the bow 2a side in the bow-stern direction Da with respect to the upper structure 2h. Further, in the hull 2, an engine room 2m including a main engine for propelling the existing ship 1 is provided on the stern 2r side in the bow-stern direction Da.
　上甲板２ｔは、外部に露出する全通暴露甲板であり、貨物搭載区画２ｋの上方を覆うように設けられている。 The upper deck 2t is a fully exposed deck that is exposed to the outside, and is provided so as to cover the cargo loading section 2k above.
　複数のタンク３は、それぞれ独立タンクであって、その内部に、積載物であるＬＮＧ等の液化ガスを収容する。タンク３は、低温雰囲気における靭性や、耐腐食性を担保するべく、例えばアルミニウム合金等で形成されている。タンク３は、船体２内の貨物搭載区画２ｋに、船首尾方向Ｄａに複数配置されている。この実施形態における既存船舶１は、モス型の独立球形タンクである５つのタンク３を備えている場合を例示している。これらタンク３の上部３ａは、上甲板２ｔよりも上方に配置されている。 The plurality of tanks 3 are independent tanks, and the liquefied gas such as LNG, which is a load, is housed inside the tanks 3. The tank 3 is formed of, for example, an aluminum alloy in order to ensure toughness in a low temperature atmosphere and corrosion resistance. A plurality of tanks 3 are arranged in the cargo loading section 2k in the hull 2 in the bow-aft direction Da. The existing ship 1 in this embodiment exemplifies a case in which five tanks 3 which are moss-type independent spherical tanks are provided. The upper portions 3a of the tanks 3 are arranged above the upper deck 2t.
　図２は、上記既存船舶の利用方法のフローチャートである。図３は、上記既存船舶の利用方法において、既存船舶の中間船体部を切り出した状態を示す側面図である。
　図２に示すように、既存船舶１を利用した既存船舶の利用方法は、タンクユニット切り出し工程Ｓ１と、船体接合工程（新たな船舶を製造する工程）Ｓ２と、フロート取付工程Ｓ３と、艤装品取付工程Ｓ４と、設置工程Ｓ５と、を含む。 FIG. 2 is a flowchart of a method of using the existing ship. FIG. 3 is a side view showing a state in which the intermediate hull portion of the existing ship is cut out in the method of using the existing ship.
As shown in FIG. 2, a method of using an existing ship using the existing ship 1 is a tank unit cutting step S1, a hull joining step (a step of manufacturing a new ship) S2, a float attaching step S3, and outfitting equipment. It includes an attaching step S4 and an installing step S5.
　タンクユニット切り出し工程Ｓ１では、図３に示すように、既存船舶１から、船首尾方向Ｄａの中間部である中間船体部５Ｃ、５Ｄを切り出す。この実施形態では、既存船舶１から、２つの中間船体部５Ｃ、５Ｄを切り出す場合を例示するが、何れか１つの中間船体部を切り出したり、３つ以上の中間船体部を切り出したりするようにしてもよい。ここで、中間船体部５Ｃ、５Ｄとは、それぞれ、複数のタンク３のうちの一部のタンク３と、既存船舶１の船体２のうち、上記一部のタンク３が設けられている船首尾方向Ｄａの一部の船体２と、を含んだ部分である。 In the tank unit cutting step S1, as shown in FIG. 3, the intermediate hull parts 5C and 5D, which are the middle parts in the bow-stern direction Da, are cut out from the existing ship 1. In this embodiment, the case where two intermediate hulls 5C and 5D are cut out from the existing ship 1 is illustrated, but any one intermediate hull may be cut out or three or more intermediate hulls may be cut out. May be. Here, the intermediate hull portions 5C and 5D are, respectively, a part of the plurality of tanks 3 and a part of the hull 2 of the existing ship 1 which is provided with the part of the tanks 3 described above. This is a portion including a part of the hull 2 in the direction Da.
　上記中間船体部５Ｃ、５Ｄの切り出しを行うには、既存船舶１の船体２を、船首尾方向Ｄａに間隔をあけた位置Ｐ１、Ｐ２、Ｐ３で、それぞれ切断する。これらの位置Ｐ１、Ｐ２、Ｐ３は、船首尾方向Ｄａにおいて互いに隣り合うタンク３同士の間に設定する。このようにして、船体２をそれぞれ位置Ｐ１、Ｐ２、Ｐ３で切断することによって、既存船舶１は、船首尾方向Ｄａの中間部に配置されていた２つの中間船体部５Ｃ、５Ｄと、中間船体部５Ｃ、５Ｄよりも船首２ａ側に配置されていた船首側船体部５Ａと、中間船体部５Ｃ、５Ｄよりも船尾２ｒ側に配置されていた船尾側船体部５Ｂとに分断される。ここで、船尾側船体部５Ｂは、機関室２ｍと、上部構造２ｈと、を含んでいる。 In order to cut out the intermediate hull parts 5C and 5D, the hull 2 of the existing ship 1 is cut at positions P1, P2, P3 spaced apart in the bow-aft direction Da, respectively. These positions P1, P2, P3 are set between the tanks 3 that are adjacent to each other in the bow-stern direction Da. In this way, by cutting the hull 2 at the positions P1, P2, and P3, respectively, the existing ship 1 has the two intermediate hull parts 5C and 5D, which are arranged in the middle part in the bow-stern direction Da, and the intermediate hull. It is divided into a bow-side hull portion 5A arranged on the bow 2a side of the portions 5C and 5D and a stern-side hull portion 5B arranged on the stern 2r side of the intermediate hull portions 5C and 5D. Here, the stern side hull portion 5B includes an engine room 2m and an upper structure 2h.
　この実施形態では、例えば、船首２ａ側から１番目のタンク３Ａと２番目のタンク３Ｂとの間に設定した位置Ｐ１と、船首２ａ側から２番目のタンク３Ｂと３番目のタンク３Ｃとの間に設定した位置Ｐ２と、船首２ａ側から３番目のタンク３Ｃと４番目のタンク３Ｄとの間に設定した位置Ｐ３とで、それぞれ船体２を切断する。すなわち、この実施形態における中間船体部５Ｃは、船首尾方向Ｄａの中間部の一部である位置Ｐ１と位置Ｐ２との間の船体２Ｃと、船首２ａ側から２番目のタンク３Ｂと、を含む。また、中間船体部５Ｄは、船首尾方向Ｄａの中間部の一部である位置Ｐ２と位置Ｐ３との間の船体２Ｄと、船首２ａ側から３番目のタンク３Ｃと、を含む。このように、中間船体部５Ｃ、５Ｄは、複数のタンク３のうち、船首尾方向Ｄａの中間部に配置されたタンク３Ｂ、３Ｃを含む。このようにして、既存船舶１から、中間船体部５Ｃ、５Ｄを、２つのタンクユニット３１Ａ、３１Ｂとして切り出す。 In this embodiment, for example, between the position P1 set between the first tank 3A and the second tank 3B from the bow 2a side, and the position P1 between the second tank 3B and the third tank 3C from the bow 2a side. The hull 2 is cut at each of the position P2 set to No. 2 and the position P3 set between the third tank 3C and the fourth tank 3D from the bow 2a side. That is, the intermediate hull portion 5C in this embodiment includes the hull 2C between the position P1 and the position P2 which is a part of the intermediate portion in the bow-stern direction Da, and the second tank 3B from the bow 2a side. . In addition, the intermediate hull portion 5D includes a hull 2D between a position P2 and a position P3 which is a part of an intermediate portion in the bow-stern direction Da, and a third tank 3C from the bow 2a side. As described above, the intermediate hull portions 5C and 5D include the tanks 3B and 3C that are arranged in the middle portion in the bow-stern direction Da among the plurality of tanks 3. In this way, the intermediate hull parts 5C and 5D are cut out from the existing ship 1 as the two tank units 31A and 31B.
　図４は、上記既存船舶の利用方法において、既存船舶の船首側船体部と船尾側船体部とを接合した状態を示す側面図である。図５は、上記既存船舶の利用方法において、既存船舶の船首側船体部と船尾側船体部とを接合した状態を示す平面図である。
　船体接合工程Ｓ２では、図４、図５に示すように、船首側船体部５Ａの後端５ｒと、船尾側船体部５Ｂの前端５ｆとを接合する。船首側船体部５Ａの後端５ｒと、船尾側船体部５Ｂの前端５ｆとは、主に溶接により接合される。船首側船体部５Ａの後端５ｒと、船尾側船体部５Ｂの前端５ｆとにおいて、船体２の切断面の形状が異なる場合、船首側船体部５Ａの後端５ｒと、船尾側船体部５Ｂの前端５ｆとの間に、船首尾方向Ｄａに交差する面方向に延びる接続板８（図５参照）を設けてもよい。 FIG. 4 is a side view showing a state in which the bow side hull portion and the stern side hull portion of the existing ship are joined in the above-described method of using the existing ship. FIG. 5 is a plan view showing a state in which the bow side hull portion and the stern side hull portion of the existing ship are joined in the above-described method of using the existing ship.
In the hull joining step S2, as shown in FIGS. 4 and 5, the rear end 5r of the bow side hull portion 5A and the front end 5f of the stern side hull portion 5B are joined. The rear end 5r of the bow side hull portion 5A and the front end 5f of the stern side hull portion 5B are joined mainly by welding. When the shape of the cutting surface of the hull 2 is different between the rear end 5r of the bow side hull portion 5A and the front end 5f of the stern side hull portion 5B, the rear end 5r of the bow side hull portion 5A and the stern side hull portion 5B A connection plate 8 (see FIG. 5) may be provided between the front end 5f and the front end 5f so as to extend in the plane direction intersecting the bow-stern direction Da.
　例えば、既存船舶１に設けられていたマニホールド２３の一部又は全部が、中間船体部５Ｃ、５Ｄに配置されている場合、マニホールド２３の一部又は全部は、船首側船体部５Ａに設けるようにしてもよい。また、コンプレッサー等のカーゴ機器２４は、既存船舶１の船尾側船体部５Ｂに設けられているため、そのままの位置に設けておけばよい。 For example, when a part or all of the manifold 23 provided in the existing ship 1 is arranged in the intermediate hull parts 5C and 5D, a part or all of the manifold 23 is provided in the bow side hull part 5A. May be. Further, the cargo device 24 such as the compressor is provided in the stern side hull portion 5B of the existing ship 1, and therefore may be provided at the position as it is.
　船首側船体部５Ａの後端５ｒと船尾側船体部５Ｂの前端５ｆとを接合した後、船首側船体部５Ａと船尾側船体部５Ｂとの間で、各種の配管、配線類を接続する。このようにすることで、新たな船舶１０Ａが製造される。
　船舶１０Ａは、既存船舶１（図１参照）よりも船首尾方向Ｄａの長さが短い船体２Ｘを有している。また、船舶１０Ａは、既存船舶１よりも少ない数のタンク３を有している。 After joining the rear end 5r of the bow side hull portion 5A and the front end 5f of the stern side hull portion 5B, various pipes and wires are connected between the bow side hull portion 5A and the stern side hull portion 5B. By doing this, a new ship 10A is manufactured.
The ship 10A has a hull 2X which is shorter than the existing ship 1 (see FIG. 1) in the bow-stern direction Da. Further, the ship 10A has a smaller number of tanks 3 than the existing ship 1.
　図６は、上記既存船舶の利用方法で製造される浮体式貯留設備を示す斜視図である。図７は、上記既存船舶の利用方法で製造される浮体式貯留設備を示す側面図である。
　図６、図７に示すように、フロート取付工程Ｓ３では、タンクユニット３１Ａ、３１Ｂのそれぞれにおいて、船首尾方向Ｄａの両側に、第一フロート部（閉塞体）３３Ａ、第二フロート部（閉塞体）３３Ｂを、溶接により取り付ける。
　第一フロート部３３Ａ、第二フロート部３３Ｂは、それぞれ、船幅方向両側に設けられた一対の舷側３３ｓと、船底３３ｂと、を有している。第一フロート部３３Ａ、第二フロート部３３Ｂは、更に、船底３３ｂの上方に間隔をあけて設けられた上甲板３３ｔを備えている。また、第一フロート部３３Ａ、第二フロート部３３Ｂは、タンクユニット接続部３３ｃと、端板３３ｄと、を一体に有している。 FIG. 6 is a perspective view showing a floating-type storage facility manufactured by the method of utilizing the existing ship. FIG. 7 is a side view showing a floating body type storage facility manufactured by the above-described method of utilizing an existing ship.
As shown in FIGS. 6 and 7, in the float attaching step S3, in each of the tank units 31A and 31B, the first float portion (closure body) 33A and the second float portion (closure body) are provided on both sides in the bow-aft direction Da. ) 33B is attached by welding.
Each of the first float portion 33A and the second float portion 33B has a pair of port sides 33s provided on both sides in the ship width direction and a ship bottom 33b. The first float portion 33A and the second float portion 33B further include an upper deck 33t provided above the ship bottom 33b with a space. Further, the first float portion 33A and the second float portion 33B integrally have a tank unit connecting portion 33c and an end plate 33d.
　第一フロート部３３Ａのタンクユニット接続部３３ｃは、船首尾方向Ｄａで、第一フロート部３３Ａのタンクユニット３１Ａ、３１Ｂと対向する側に形成されている。同様に、第二フロート部３３Ｂのタンクユニット接続部３３ｃは、船首尾方向Ｄａで、第二フロート部３３Ｂのタンクユニット３１Ａ、３１Ｂと対向する側に形成されている。第一フロート部３３Ａ及び第二フロート部３３Ｂのそれぞれにおいて、船首尾方向Ｄａから見たタンクユニット接続部３３ｃの断面輪郭、言い換えれば、タンクユニット接続部３３ｃの船首尾方向Ｄａに直交する船体断面形状は、タンクユニット３１Ａ、３１Ｂの船首尾方向Ｄａの端部５ａ、５ｂの切断面の輪郭と同形状になっている。なお、第一フロート部３３Ａ及び第二フロート部３３Ｂのタンクユニット接続部３３ｃと、タンクユニット３１の船首尾方向Ｄａの端部５ａ、５ｂとの接合断面は、同形状ではなく、異なっていてもよい。 The tank unit connection portion 33c of the first float portion 33A is formed on the side facing the tank units 31A and 31B of the first float portion 33A in the bow-aft direction Da. Similarly, the tank unit connecting portion 33c of the second float portion 33B is formed on the side facing the tank units 31A and 31B of the second float portion 33B in the bow-aft direction Da. In each of the first float portion 33A and the second float portion 33B, the cross-sectional contour of the tank unit connecting portion 33c viewed from the bow-stern direction Da, in other words, the hull cross-sectional shape orthogonal to the bow-stern direction Da of the tank unit connecting portion 33c. Has the same shape as the contours of the cut surfaces of the end portions 5a, 5b of the tank units 31A, 31B in the bow-stern direction Da. The joint cross-sections of the tank unit connecting portion 33c of the first float portion 33A and the second float portion 33B and the end portions 5a, 5b of the tank unit 31 in the bow-stern direction Da are not the same shape and may be different. Good.
　端板３３ｄは、第一フロート部３３Ａ、第二フロート部３３Ｂのそれぞれで、船首尾方向Ｄａにおいてタンクユニット３１Ａ、３１Ｂから離間した側（換言すれば、タンクユニット接続部３３ｃと反対側）に形成されている。端板３３ｄは、第一フロート部３３Ａ、第二フロート部３３Ｂにおいて、一対の舷側３３ｓと、船底３３ｂと、上甲板３３ｔとに囲まれた部分（開口）を塞ぐように設けられている。 The end plate 33d is formed on each of the first float portion 33A and the second float portion 33B on the side separated from the tank units 31A, 31B in the bow-stern direction Da (in other words, on the opposite side of the tank unit connection portion 33c). Has been done. The end plate 33d is provided so as to close a portion (opening) surrounded by the pair of port sides 33s, the ship bottom 33b, and the upper deck 33t in the first float portion 33A and the second float portion 33B.
　第一フロート部３３Ａの内部、及び第二フロート部３３Ｂの内部には、それぞれ空所３４が設けられた中空構造となっている。これら空所３４によって第一フロート部３３Ａ及び第二フロート部３３Ｂの浮力が付与されている。なお、空所３４に対してポンプ（図示無し）等により海水等を給排水して、空所３４で発生する浮力を調整することで、空所３４をバラストタンクの如く利用することもできる。また、空所３４を、機関室や居住スペース、その他のタンク等として利用することもできる。
　このようにして、タンクユニット３１Ａ、３１Ｂのそれぞれに、第一フロート部３３Ａ、第二フロート部３３Ｂが取り付けられる。このような第一フロート部３３Ａ、第二フロート部３３Ｂは、タンクユニット３１Ａ、３１Ｂを形成する中間船体部５Ｃ、５Ｄにおいて、一対の舷側２ｓと船底２ｂとが船首尾方向Ｄａに開口する部分を塞いでいる。 Inside the first float portion 33A and the inside of the second float portion 33B, a hollow structure is provided with a cavity 34, respectively. The buoyancy of the first float portion 33A and the second float portion 33B is imparted by these voids 34. By supplying and draining seawater or the like to the void 34 by a pump (not shown) or the like and adjusting the buoyancy generated in the void 34, the void 34 can be used as a ballast tank. The vacant space 34 can also be used as an engine room, a living space, other tanks, or the like.
In this way, the first float portion 33A and the second float portion 33B are attached to each of the tank units 31A and 31B. The first float portion 33A and the second float portion 33B as described above are, in the intermediate hull portions 5C and 5D forming the tank units 31A and 31B, portions where the pair of port sides 2s and the bottom 2b open in the bow-stern direction Da. It is blocking.
　艤装品取付工程Ｓ４では、タンクユニット３１Ａ、３１Ｂや第一フロート部３３Ａ、第二フロート部３３Ｂに、浮体式貯留設備３０Ａ、３０Ｂとして必要な艤装品４０を取り付ける。この実施形態における艤装品４０は、第一フロート部３３Ａ、第二フロート部３３Ｂ上にそれぞれ設けられている。艤装品４０としては、例えば、係船装置３５、タンク３Ｂ，３Ｃ内のＬＮＧを荷揚げするためのマニホールド３８、発電機（図示無し）等を例示できる。また、この実施形態では、艤装品４０として、タンク３Ｂ，３Ｃ内に貯留されるＬＮＧを加熱して再ガス化する再ガス化装置３９が設けられている。これらの艤装品４０は、このようなタンクユニット３１Ａ、３１Ｂ及び第一フロート部３３Ａ、第二フロート部３３Ｂの少なくとも一方に設けられている。 In the equipment mounting step S4, the equipment 40 required as the floating storage equipment 30A, 30B is mounted on the tank units 31A, 31B, the first float portion 33A, and the second float portion 33B. The outfit 40 in this embodiment is provided on each of the first float portion 33A and the second float portion 33B. Examples of the equipment 40 include a mooring device 35, a manifold 38 for unloading LNG in the tanks 3B and 3C, a generator (not shown), and the like. Further, in this embodiment, a regasification device 39 that heats and regasifies LNG stored in the tanks 3B and 3C is provided as the outfit 40. These outfittings 40 are provided on at least one of the tank units 31A and 31B, the first float portion 33A, and the second float portion 33B.
　このようにして、タンクユニット３１Ａ、３１Ｂのそれぞれにおいて、船首尾方向Ｄａの両側に第一フロート部３３Ａ、第二フロート部３３Ｂを接合して取り付けることで、２つの浮体式貯留設備３０Ａ、３０Ｂが構成されている。また、このような浮体式貯留設備３０Ａ、３０Ｂは、それぞれ、タンクユニット３１Ａ、３１Ｂと、タンクユニット３１Ａ、３１Ｂの船首尾方向Ｄａの両側に設けられた第一フロート部３３Ａ、第二フロート部３３Ｂと、浮体式貯留設備３０Ａ、３０Ｂとしての艤装品４０と、を備えている。 In this way, in each of the tank units 31A and 31B, by joining and mounting the first float portion 33A and the second float portion 33B on both sides in the bow-aft direction Da, the two floating body storage facilities 30A and 30B are installed. It is configured. Further, such floating body storage facilities 30A and 30B respectively include the tank units 31A and 31B, and the first float portion 33A and the second float portion 33B provided on both sides of the tank units 31A and 31B in the bow-stern direction Da. And the outfitting equipment 40 as the floating storage facilities 30A and 30B.
　設置工程Ｓ５では、このようにして製造された２つ浮体式貯留設備３０Ａ、３０Ｂを、それぞれ、港湾等の所定位置に係船させて設置する。 In the installation step S5, the two floating storage facilities 30A and 30B manufactured in this manner are laid at a predetermined position such as a harbor and installed.
　上述した第一実施形態の既存船舶１の利用方法では、既存船舶１から、一部のタンク３Ｂ、３Ｃを含む中間船体部５Ｃ、５Ｄを切り出した後、機関室２ｍを含む船首側船体部５Ａに船尾側船体部５Ｂを設けることで、新たな船舶１０Ａを製造することができる。また、切り出した中間船体部５Ｃ、５Ｄは、浮体式貯留設備３０Ａ、３０Ｂのタンクユニット３１Ａ、３１Ｂとして用いることができる。このようにして、既存船舶１を有効利用して、新たな船舶１０Ａと、浮体式貯留設備３０Ａ、３０Ｂとを製造することで、船舶１０Ａや浮体式貯留設備３０Ａ、３０Ｂの製造コストを抑えることができる。また、新たな船舶１０Ａは、既存船舶１の機関室２ｍを含んでいるので、特にコストが掛かる機関室２ｍを新たに製造する必要が無く、コスト低減に特に有効である。また、新たに製造された船舶１０Ａは、既存船舶１よりも船首尾方向Ｄａの長さが短く、タンク３の数が少ない船舶１０Ａを製造することができる。このような船舶１０Ａは、タンク３に収容する積載物の積載量も少なく、小回りが利くものとなる。したがって、大型の既存船舶１では効率が悪かったり、航行し難い港湾や航路であったりする場合に、有利となる。また、船舶１０Ａは、既存船舶１よりも総重量が小さくなることから、航行のための推進機関における燃料消費率も向上する。このようにして、複数のタンク３を備えた既存船舶１を有効利用することが可能となる。 In the method of using the existing ship 1 of the first embodiment described above, after cutting out the intermediate hull parts 5C and 5D including some tanks 3B and 3C from the existing ship 1, the bow side hull part 5A including the engine room 2m is cut out. A new ship 10A can be manufactured by providing the stern side hull portion 5B. The cut-out intermediate hull portions 5C and 5D can be used as tank units 31A and 31B of the floating body storage facilities 30A and 30B. In this way, by effectively utilizing the existing ship 1, the new ship 10A and the floating storage equipment 30A, 30B are manufactured, thereby suppressing the manufacturing costs of the ship 10A and the floating storage equipment 30A, 30B. You can Further, since the new ship 10A includes the engine room 2m of the existing ship 1, there is no need to newly manufacture the engine room 2m, which is particularly costly, and it is particularly effective for cost reduction. Further, the newly manufactured ship 10A can be manufactured with a shorter length in the bow-stern direction Da and a smaller number of tanks 3 than the existing ship 1. Such a ship 10A has a small load capacity of the load accommodated in the tank 3 and can be turned quickly. Therefore, it is advantageous when the large existing vessel 1 is inefficient or is a port or route that is difficult to navigate. Further, since the total weight of the ship 10A is smaller than that of the existing ship 1, the fuel consumption rate of the propulsion engine for navigation is also improved. In this way, it becomes possible to effectively use the existing ship 1 including the plurality of tanks 3.
　また、船首側船体部５Ａは、既存船舶１において、中間船体部５Ｃ、５Ｄよりも船首２ａ側に配置されていたものを用いる。このように構成することで、船尾側船体部５Ｂだけでなく、船首側船体部５Ａについても、既存船舶１を有効利用して形成することができる。したがって、船舶１０Ａの製造コストをさらに抑えることができる。 Also, as the bow side hull portion 5A, the one that is arranged closer to the bow 2a side than the intermediate hull portions 5C and 5D in the existing ship 1 is used. With such a configuration, not only the stern-side hull portion 5B but also the bow-side hull portion 5A can be formed by effectively utilizing the existing ship 1. Therefore, the manufacturing cost of the ship 10A can be further reduced.
　また、既存船舶１の一部をタンクユニット３１Ａ、３１Ｂとして切り出し、浮体式貯留設備３０Ａ、３０Ｂとして設置することで、既存船舶１を有効利用することができる。また、このようにして形成された浮体式貯留設備３０Ａ、３０Ｂは、既存船舶１よりも船首尾方向Ｄａの長さが小さくなるため、係留するスペースが限られる場合でも設置可能となる。したがって、浮体式貯留設備３０Ａ、３０Ｂの設置場所の自由度が高まる。また、必要に応じて、タンクユニット３１Ａ、３１Ｂに備えるタンク３の数を決めれば良いので、用途に応じた積載量を有した浮体式貯留設備３０Ａ、３０Ｂを提供することができる。また、１つの既存船舶１から、複数の浮体式貯留設備３０Ａ、３０Ｂを製造することができ、コスト的にも優れている。 Also, by cutting out a part of the existing ship 1 as tank units 31A and 31B and installing it as floating body storage facilities 30A and 30B, the existing ship 1 can be effectively used. Further, since the floating storage facilities 30A and 30B formed in this manner have a smaller length in the bow-stern direction Da than the existing ship 1, they can be installed even when the mooring space is limited. Therefore, the degree of freedom of the installation location of the floating body storage equipment 30A, 30B is increased. Moreover, since the number of tanks 3 provided in the tank units 31A and 31B may be determined as necessary, it is possible to provide the floating body type storage equipment 30A and 30B having a loading amount according to the application. Further, a plurality of floating body type storage facilities 30A and 30B can be manufactured from one existing vessel 1, which is also excellent in cost.
　また、既存船舶１の一部から切り出したタンクユニット３１Ａ、３１Ｂに、第一フロート部３３Ａ、第二フロート部３３Ｂや艤装品４０を追加することで、既存船舶１を有効利用しながら、所要の機能を備えた浮体式貯留設備３０Ａ、３０Ｂを製造することができる。また、第一フロート部３３Ａ、第二フロート部３３Ｂを設けることで、喫水を浅くすることができる。これにより、係留するスペースが限られる場合や、水深が浅い場所でも、設置することが可能となり、浮体式貯留設備３０Ａ、３０Ｂの設置場所の自由度が高まる。また、必要に応じて、タンクユニット３１Ａ、３１Ｂが有するタンク３の数を決めれば良いので、用途に応じた積載量を有した浮体式貯留設備３０Ａ、３０Ｂを提供することができる。 Further, by adding the first float portion 33A, the second float portion 33B and the outfitting equipment 40 to the tank units 31A and 31B cut out from a part of the existing vessel 1, the existing vessel 1 can be effectively used and required. Floating body type storage facilities 30A and 30B having a function can be manufactured. Further, the draft can be made shallow by providing the first float portion 33A and the second float portion 33B. As a result, even when the mooring space is limited, or even when the water depth is shallow, the installation can be performed, and the degree of freedom of the installation location of the floating storage facilities 30A and 30B is increased. Moreover, since the number of the tanks 3 included in the tank units 31A and 31B may be determined as necessary, it is possible to provide the floating- type storage facilities 30A and 30B having a loading amount according to the application.
（第二実施形態）
　次に、この発明に係る既存船舶の利用方法の第二実施形態について説明する。以下に説明する第二実施形態においては、第一実施形態と接続用船体部２０の構成のみが異なるので、第一実施形態と同一部分に同一符号を付して説明するとともに、重複説明を省略する。 (Second embodiment)
Next, a second embodiment of the method of using the existing ship according to the present invention will be described. In the second embodiment described below, only the configuration of the connecting hull portion 20 is different from the first embodiment, so the same parts as those in the first embodiment will be denoted by the same reference numerals and will not be described. To do.
　図８は、この発明の第二実施形態の既存船舶の利用方法のフローチャートである。図９は、上記既存船舶の利用方法によって製造した船舶を示す側面図である。図１０は、上記既存船舶の利用方法によって製造した船舶を示す平面図である。
　図８に示すように、この第二実施形態における既存船舶１を利用した既存船舶の利用方法は、タンクユニット切り出し工程Ｓ１と、接続用船体挿入工程Ｓ１２と、船体接合工程Ｓ１３と、フロート取付工程Ｓ３と、艤装品取付工程Ｓ４と、設置工程Ｓ５と、を含む。 FIG. 8 is a flowchart of the method of using the existing ship according to the second embodiment of the present invention. FIG. 9 is a side view showing a ship manufactured by the method of using the existing ship. FIG. 10 is a plan view showing a ship manufactured by the method of using the existing ship.
As shown in FIG. 8, a method of using an existing ship using the existing ship 1 according to the second embodiment is a tank unit cutting step S1, a connecting hull inserting step S12, a hull joining step S13, and a float attaching step. It includes S3, a fitting attachment step S4, and an installation step S5.
　タンクユニット切り出し工程Ｓ１では、上記第一実施形態と同様、既存船舶１から、中間船体部５Ｃ、５Ｄを切り出す（図３参照）。 In the tank unit cutting step S1, the intermediate hull parts 5C and 5D are cut out from the existing ship 1 as in the first embodiment (see FIG. 3).
　接続用船体挿入工程Ｓ１２では、図９、図１０に示すように、切除された中間船体部５Ｃ、５Ｄよりも船首２ａ側に配置されていた船首側船体部５Ａの後端５ｒと、中間船体部５Ｃ、５Ｄよりも船尾２ｒ側に配置されていた船尾側船体部５Ｂの前端５ｆとの間に、接続用船体部２０を挿入する。 In the connecting hull insertion step S12, as shown in FIGS. 9 and 10, the rear end 5r of the bow-side hull portion 5A, which is arranged on the bow 2a side of the cut intermediate hull portions 5C and 5D, and the intermediate hull The connecting hull portion 20 is inserted between the front end 5f of the stern side hull portion 5B which is arranged on the stern 2r side of the portions 5C and 5D.
　接続用船体部２０は、後述する船体接合工程Ｓ１３で、船首側船体部５Ａと船尾側船体部５Ｂとにそれぞれ接続される。接続用船体部２０は、船首側接続部２０ａと、船尾側接続部２０ｒと、中間接続部２０ｃと、を一体に有する。船首尾方向Ｄａから見た船首側接続部２０ａの断面輪郭、言い換えれば、船首側接続部２０ａの船首尾方向Ｄａに直交する船体断面形状は、船首側船体部５Ａの後端５ｒの切断面の輪郭と同形状である。同様に、船首尾方向Ｄａから見た船尾側接続部２０ｒの断面輪郭、言い換えれば、船尾側接続部２０ｒの船首尾方向Ｄａに直交する船体断面形状は、船尾側船体部５Ｂの前端５ｆの切断面の輪郭と同形状である。 The connecting hull portion 20 is connected to the bow side hull portion 5A and the stern side hull portion 5B respectively in a hull joining step S13 described below. The connecting hull portion 20 integrally includes a bow-side connecting portion 20a, a stern-side connecting portion 20r, and an intermediate connecting portion 20c. The cross-sectional contour of the bow-side connecting portion 20a viewed from the bow-stern direction Da, in other words, the hull cross-sectional shape of the bow-side connecting portion 20a orthogonal to the bow-stern direction Da is the cutting surface of the rear end 5r of the bow-side hull portion 5A. It has the same shape as the contour. Similarly, the cross-sectional contour of the stern-side connecting portion 20r viewed from the stern-side direction Da, in other words, the hull cross-sectional shape of the stern-side connecting portion 20r orthogonal to the stern-side direction Da is the cutting of the front end 5f of the stern-side hull portion 5B. It has the same shape as the contour of the surface.
　このようにして中間接続部２０ｃは、船首側接続部２０ａと船尾側接続部２０ｒとを連続的に接続するよう形成されている。すなわち、接続用船体部２０は、船首側船体部５Ａと船尾側船体部５Ｂとの間で、船体２Ｙの外面が連続するように設けられる。
　接続用船体部２０は、船首尾方向Ｄａの長さＬを、タンク３の１つ分の船首尾方向Ｄａの長さよりも小さくするようにしてもよい。このようにすることで、船舶１０Ｂにおける船首尾方向Ｄａの長さが長くなることを抑制できる。 In this way, the intermediate connecting portion 20c is formed so as to continuously connect the bow-side connecting portion 20a and the stern-side connecting portion 20r. That is, the connecting hull portion 20 is provided so that the outer surface of the hull 2Y is continuous between the bow side hull portion 5A and the stern side hull portion 5B.
The connecting hull portion 20 may make the length L in the bow-stern direction Da smaller than the length in the bow-stern direction Da for one tank 3. By doing so, it is possible to prevent the length of the boat 10B in the bow-stern direction Da from increasing.
　接続用船体部２０は、船幅方向両側に設けられた一対の舷側２０ｓと、船底２０ｂと、を有する。接続用船体部２０は、船底２０ｂの上方に間隔をあけて設けられた上甲板２０ｔを備える。 The connecting hull portion 20 has a pair of port sides 20s provided on both sides in the ship width direction and a ship bottom 20b. The connecting hull portion 20 includes an upper deck 20t that is provided above the ship bottom 20b with a gap.
　図９に示すように、接続用船体部２０は、その内部に、接続用配管及び接続用配線２１を備える。接続用配管及び接続用配線２１は、船首側船体部５Ａ内に設けられた船首側配管及び船首側配線６と、船尾側船体部５Ｂ内に設けられた船尾側配管及び船尾側配線７とを接続する。 As shown in FIG. 9, the connecting hull portion 20 is provided with connecting pipes and connecting wires 21 therein. The connection pipe and the connection wiring 21 include a bow side pipe and a bow side wiring 6 provided in the bow side hull portion 5A, and a stern side pipe and a stern side wiring 7 provided in the stern side hull portion 5B. Connecting.
　船体接合工程Ｓ１３では、船首側船体部５Ａと船尾側船体部５Ｂとを接続用船体部２０を介して接合する。具体的には、船首側船体部５Ａの後端５ｒと、接続用船体部２０の船首側接続部２０ａとを溶接により接合し、船尾側船体部５Ｂの前端５ｆと、接続用船体部２０の船尾側接続部２０ｒとを溶接により接合する。 In the hull joining step S13, the bow side hull portion 5A and the stern side hull portion 5B are joined via the connecting hull portion 20. Specifically, the rear end 5r of the bow side hull portion 5A and the bow side connecting portion 20a of the connecting hull portion 20 are joined by welding, and the front end 5f of the stern side hull portion 5B and the connecting hull portion 20 are connected. The stern-side connecting portion 20r is joined by welding.
　船体接合工程Ｓ１３では、更に、接続用船体部２０の上甲板２０ｔと、船首側船体部５Ａ及び船尾側船体部５Ｂの上甲板２ｔとを、溶接により接合する。
　船体接合工程Ｓ１３では、更に、接続用船体部２０内で、接続用配管及び接続用配線２１に、船首側配管及び船首側配線６と、船尾側配管及び船尾側配線７とをそれぞれ接続する。 In the hull joining step S13, the upper deck 20t of the connecting hull portion 20 and the upper deck 2t of the bow side hull portion 5A and the stern side hull portion 5B are further joined by welding.
In the hull joining step S13, the bow side piping and the bow side wiring 6 and the stern side piping and the stern side wiring 7 are further connected to the connecting piping and the connecting wiring 21 in the connecting hull portion 20, respectively.
　ここで、既存船舶１に設けられていたマニホールド２３の一部又は全部が、中間船体部５Ｃ、５Ｄに設けられていた場合、接続用船体部２０にマニホールド２３を設けるようにしてもよい。接続用船体部２０には、既存船舶１に設けられていたコンプレッサー等のカーゴ機器２４を設けることもできる。 Here, when a part or all of the manifold 23 provided in the existing ship 1 is provided in the intermediate hull sections 5C and 5D, the manifold 23 may be provided in the connecting hull section 20. The connecting hull portion 20 may be provided with cargo equipment 24 such as a compressor provided in the existing vessel 1.
　船舶１０Ｂは、接続用船体部２０内に、中間船体部５Ｃ、５Ｄを切り出したことによる船舶１０Ｂのバランスを改善するためのバラストタンク２５等を設けるようにしても良い。
　さらに、接続用船体部２０には、再ガス化装置やバラスト処理装置（ともに図示無し）等の各種機器、物品収容空間等を設けることもできる。
　このようにして、船首側船体部５Ａと船尾側船体部５Ｂとの間に、接続用船体部２０を追設することで、船舶１０Ｂが製造される。接続用船体部２０を設けることで、船舶１０Ｂの喫水を浅くすることができ、水深が浅いＬＮＧ基地でのＬＮＧ輸送が対応可能となる。 The boat 10B may be provided with a ballast tank 25 or the like for improving the balance of the boat 10B due to the cutout of the intermediate hulls 5C and 5D in the connecting hull 20.
Further, the connecting hull 20 may be provided with various devices such as a regasification device and a ballast treatment device (both not shown), an article storage space, and the like.
In this way, the boat 10B is manufactured by additionally installing the connecting hull portion 20 between the bow side hull portion 5A and the stern side hull portion 5B. By providing the connecting hull portion 20, the draft of the ship 10B can be made shallow, and LNG transportation at an LNG base having a shallow water depth can be supported.
　一方、タンクユニット切り出し工程Ｓ１で既存船舶１から切り出された中間船体部５Ｃ、５Ｄは、上記第一実施形態と同様、フロート取付工程Ｓ３と、艤装品取付工程Ｓ４と、設置工程Ｓ５とを経ることで、図６、図７に示したような浮体式貯留設備３０Ａ、３０Ｂとして港湾等の所定位置に係船させて設置する。 On the other hand, the intermediate hull portions 5C and 5D cut out from the existing ship 1 in the tank unit cutting out step S1 go through the float attaching step S3, the outfitting attaching step S4, and the installing step S5, as in the first embodiment. As a result, the floating storage facilities 30A and 30B as shown in FIGS. 6 and 7 are laid up at a predetermined position such as a harbor.
　上述した第二実施形態の既存船舶１の利用方法では、上記第一実施形態と同様、既存船舶１から、一部のタンク３を含む中間船体部５Ｃ、５Ｄを切り出した後、機関室２ｍを含む船尾側船体部５Ｂに、船首側船体部５Ａを設けることで、新たな船舶１０Ｂを製造することができる。また、切り出した中間船体部５Ｃ、５Ｄは、タンクユニット３１Ａ、３１Ｂとして用い、浮体式貯留設備３０Ａ、３０Ｂを製造することができる。このようにして、既存船舶１を有効利用して、新たな船舶１０Ｂと、浮体式貯留設備３０Ａ、３０Ｂとを製造することで、船舶１０Ｂや浮体式貯留設備３０Ａ、３０Ｂの製造コストを抑えることができる。また、新たな船舶１０Ｂは、既存船舶１の機関室２ｍを含んでいるので、特にコストが掛かる機関室２ｍを新たに製造する必要が無く、コスト低減に特に有効である。また、新たに製造された船舶１０Ｂは、既存船舶１よりも船首尾方向Ｄａ長さが短く、タンク３数が少ない船舶１０Ｂを製造することができる。このような船舶１０Ｂは、タンク３に収容する積載物の積載量も少なく、小回りが利くものとなる。 In the method of using the existing ship 1 of the above-described second embodiment, similarly to the above-described first embodiment, after cutting out the intermediate hull portions 5C and 5D including some tanks 3 from the existing ship 1, the engine room 2m is removed. A new ship 10B can be manufactured by providing the stern side hull portion 5B including the bow side hull portion 5A. Further, the cut out intermediate hull portions 5C and 5D can be used as tank units 31A and 31B to manufacture the floating body storage facilities 30A and 30B. In this way, by effectively utilizing the existing ship 1, the new ship 10B and the floating storage equipment 30A, 30B are manufactured, thereby suppressing the manufacturing costs of the ship 10B and the floating storage equipment 30A, 30B. You can Further, since the new ship 10B includes the engine room 2m of the existing ship 1, there is no need to newly manufacture the engine room 2m which is particularly costly, which is particularly effective for cost reduction. In addition, the newly manufactured ship 10B can be manufactured with a shorter length Da in the bow-stern direction than the existing ship 1 and a smaller number of tanks 3 than the existing ship 1. In such a ship 10B, the load capacity of the cargo to be stored in the tank 3 is small, and the small turn can be achieved.
　また、上述した第二実施形態の既存船舶１の利用方法では、既存船舶１から２つのタンク３を含む中間船体部５Ｃ、５Ｄを切除し、船首側船体部５Ａと船尾側船体部５Ｂとの間に接続用船体部２０を追設している。これにより、既存船舶１よりも船首尾方向Ｄａの長さが短い船体２Ｙと、数が少ないタンク３を有した船舶１０Ｂを、既存船舶１から製造することができる。このようにして、複数のタンク３を備えた既存船舶１を有効利用することが可能となる。 In addition, in the method of using the existing ship 1 of the second embodiment described above, the intermediate hull portions 5C and 5D including the two tanks 3 are cut off from the existing ship 1, and the bow side hull part 5A and the stern side hull part 5B are separated. A connecting hull portion 20 is additionally provided between them. As a result, the ship 10 </ b> B including the hull 2 </ b> Y having a shorter length in the bow-stern direction Da than the existing ship 1 and the tank 3 having the smaller number can be manufactured from the existing ship 1. In this way, it becomes possible to effectively use the existing ship 1 including the plurality of tanks 3.
　また、接続用船体部２０により、船首側船体部５Ａの後端５ｒと船尾側船体部５Ｂの前端５ｆとの船体断面形状が大きく異なる場合等であっても、船首側船体部５Ａと船尾側船体部５Ｂとを接続用船体部２０を介して良好に接続することができる。また、追設した接続用船体部２０に、各種の機器等を設置することもできる。 Even if the rear hull portion 5A of the bow-side hull portion 5A and the front end 5f of the stern-side hull portion 5B greatly differ in cross-sectional shape due to the connecting hull portion 20, the bow-side hull portion 5A and the stern side The hull portion 5B can be satisfactorily connected to the hull portion 20 for connection. In addition, various devices and the like can be installed in the additional connection hull 20.
　さらに、接続用船体部２０は、船首側接続部２０ａと船尾側接続部２０ｒとを備えているため、船首側船体部５Ａと船尾側船体部５Ｂとを連続的に接続することができる。 Furthermore, since the connecting hull portion 20 includes the bow-side connecting portion 20a and the stern-side connecting portion 20r, the bow-side hull portion 5A and the stern-side hull portion 5B can be continuously connected.
　また、接続用船体部２０は、接続用配管及び接続用配線２１を備えている。これにより、船首側船体部５Ａ内に設けられた船首側配管及び船首側配線６と、船尾側船体部５Ｂ内に設けられた船尾側配管及び船尾側配線７とを、接続用配管及び接続用配線２１を介して接続することができる。
　船首側船体部５Ａと船尾側船体部５Ｂとは、同一の既存船舶１の一部であるため、船首側配管及び船首側配線６と、船尾側配管及び船尾側配線７とは、船首尾方向Ｄａに直交する断面で同一位置に配置されている場合が多い。そのため、船首側配管及び船首側配線６と、船尾側配管及び船尾側配線７とを、接続用配管及び接続用配線２１を介して特に容易に接続することができる。 Further, the connecting hull portion 20 includes connecting pipes and connecting wires 21. Thereby, the bow side piping and the bow side wiring 6 provided in the bow side hull portion 5A and the stern side piping and the stern side wiring 7 provided in the stern side hull portion 5B It can be connected via the wiring 21.
Since the bow-side hull portion 5A and the stern-side hull portion 5B are part of the same existing ship 1, the bow-side piping and the bow-side wiring 6 and the stern-side piping and the stern-side wiring 7 are in the bow-stern direction. In many cases, they are arranged at the same position on the cross section orthogonal to Da. Therefore, the bow side piping and the bow side wiring 6 and the stern side piping and the stern side wiring 7 can be particularly easily connected via the connecting piping and the connecting wiring 21.
（第一、第二実施形態の変形例）
　例えば、上記実施形態では、既存船舶１から切り出したタンクユニット３１Ａ、３１Ｂに、第一フロート部３３Ａ、第二フロート部３３Ｂを取り付けることで、浮体式貯留設備３０Ａ、３０Ｂを形成するようにしたが、これに限らない。
　図１１は、上記既存船舶の利用方法で製造される浮体式貯留設備の変形例を示す斜視図である。
　例えば、図１１に示すように、既存船舶１から切り出したタンクユニット３１Ｃ（中間船体部５Ｃ）が、船首尾方向Ｄａの両端部に、それぞれ隔壁９（９Ａ、９Ｂ）を有している場合、タンクユニット３１Ｃに第一フロート部３３Ａ、第二フロート部３３Ｂを取り付けなくてもよい。船首尾方向Ｄａの一方の側の端部に設けられた隔壁９Ａは、タンク３Ｃに対して船首尾方向Ｄａの船首２ａ側に設けられていたものである。船首尾方向Ｄａの他方の側の端部に設けられた隔壁９Ｂは、タンク３Ｃに対して船首尾方向Ｄａの船尾２ｒ側に設けられていたものである。この場合、タンクユニット３１Ｃの船首尾方向Ｄａの両端部は、隔壁９（９Ａ、９Ｂ）により、一対の舷側２ｓと船底２ｂとが船首尾方向Ｄａに開口する部分が塞がれている。このようなタンクユニット３１Ｃは、そのまま浮体式貯留設備３０Ｃとして設置することができる。 (Modifications of the first and second embodiments)
For example, in the above-described embodiment, the floating storage facilities 30A and 30B are formed by attaching the first float portion 33A and the second float portion 33B to the tank units 31A and 31B cut out from the existing ship 1. , But not limited to this.
FIG. 11: is a perspective view which shows the modification of the floating type storage installation manufactured by the said utilization method of the existing ship.
For example, as shown in FIG. 11, when the tank unit 31C (intermediate hull portion 5C) cut out from the existing vessel 1 has partition walls 9 (9A, 9B) at both ends in the bow-aft direction Da, respectively, The first float portion 33A and the second float portion 33B may not be attached to the tank unit 31C. The partition wall 9A provided at one end of the bow-stern direction Da is provided on the bow 2a side in the bow-stern direction Da with respect to the tank 3C. The partition wall 9B provided on the other end of the stern direction Da is provided on the stern 2r side in the stern direction Da with respect to the tank 3C. In this case, both end portions of the tank unit 31C in the bow-stern direction Da are closed by the partition walls 9 (9A, 9B) at portions where the pair of port sides 2s and the ship bottom 2b open in the bow-stern direction Da. Such a tank unit 31C can be installed as it is as a floating body storage facility 30C.
（その他の変形例）
　この発明は、上述した実施形態に限定されるものではなく、この発明の趣旨を逸脱しない範囲において、上述した実施形態に種々の変更を加えたものを含む。すなわち、実施形態で挙げた具体的な形状や構成等は一例にすぎず、適宜変更が可能である。
　例えば、上記実施形態では、新たに製造される船舶１０Ａ、１０Ｂは、既存船舶１から得た船尾側船体部５Ｂと船首側船体部５Ａとを接合するようにしたが、これに限らない。例えば、既存船舶１から得た船尾側船体部５Ｂに、新たに製作された船首側船体部や、他の既存船舶から切り出した船首側船体部を接合するようにしてもよい。
　このように構成することで、船首側船体部５Ａに新たに製作されたものや、他の既存船舶から切り出したものを用いても、新たに製造される船舶は、少なくとも、既存船舶１の機関室２ｍを含んでいる。これにより、特にコストが掛かる機関室２ｍを新たに製造する必要が無く、船舶の製造コスト低減に特に有効である。 (Other modifications)
The present invention is not limited to the above-described embodiment, and includes various modifications of the above-described embodiment without departing from the spirit of the present invention. That is, the specific shape, configuration, and the like described in the embodiment are merely examples, and can be appropriately changed.
For example, in the above-described embodiment, the newly manufactured ships 10A and 10B are configured to join the stern side hull portion 5B and the bow side hull portion 5A obtained from the existing ship 1, but the present invention is not limited to this. For example, a stern side hull portion 5B obtained from the existing ship 1 may be joined to a newly manufactured bow side hull part or a bow side hull part cut out from another existing ship.
With this configuration, even if a newly manufactured bow-side hull portion 5A or one cut out from another existing ship is used, the newly manufactured ship is at least the engine of the existing ship 1. Includes a 2m room. As a result, there is no need to newly manufacture the engine room 2m, which is particularly costly, and it is particularly effective in reducing the manufacturing cost of the ship.
　例えば、上記実施形態では、既存船舶１から、２つのタンクユニット３１Ａ、３１Ｂ（中間船体部５Ｃ、５Ｄ）を切り出すようにしたが、既存船舶１から切り出すタンクユニットの数は、１つのみ、又は３以上としてもよい。また、既存船舶１から、複数のタンクを有した中間船体部を１つのタンクユニットとして切り出すようにしても良い。これにより、複数のタンクを備えた浮体式貯留設備を製造することができる。 For example, in the above-described embodiment, the two tank units 31A and 31B ( intermediate hull portions 5C and 5D) are cut out from the existing ship 1, but the number of tank units cut out from the existing ship 1 is only one, or It may be three or more. Further, the intermediate hull portion having a plurality of tanks may be cut out from the existing ship 1 as one tank unit. As a result, it is possible to manufacture a floating storage facility including a plurality of tanks.
　また、中間船体部５Ｃ、５Ｄは、船首２ａ側から２番目のタンク３Ｂと、３番目のタンク３Ｃと、を含むようにしたが、これに限らない。中間船体部５Ｃ、５Ｄは、複数のタンク３のうち、船首尾方向Ｄａの中間部に配置されたタンク３を含んでいてもよいし、船首尾方向Ｄａの船首側、船尾側のタンク３を含んでいてもよい。
　さらに、既存船舶１のタンク３の数、既存船舶１から切除するタンク３の数、船舶１０Ａ、１０Ｂのタンク３の数、タンク３の形状は、いかなるものとしてもよい。
　加えて、タンク３は、ＬＮＧを収容するものに限らず、例えば液化石油ガス（ＬＰＧ：Ｌｉｑｕｅｆｉｅｄ　Ｐｅｔｒｏｌｅｕｍ　Ｇａｓ）等、他の積載物を収容するものであってもよい。 Further, the intermediate hull portions 5C and 5D are configured to include the second tank 3B and the third tank 3C from the bow 2a side, but not limited to this. The intermediate hull portions 5C and 5D may include the tank 3 arranged in the middle portion in the bow-stern direction Da among the plurality of tanks 3, and may include the tank 3 on the bow side in the bow-stern direction Da and the tank 3 on the stern side. May be included.
Furthermore, the number of tanks 3 of the existing ship 1, the number of tanks 3 to be cut from the existing ship 1, the number of tanks 3 of the ships 10A and 10B, and the shape of the tank 3 may be any.
In addition, the tank 3 is not limited to one that stores LNG, and may be one that stores another load such as liquefied petroleum gas (LPG).
　上記既存船舶の利用方法によれば、既存船舶を有効利用し、適切な規模の船舶を低コストで製造することが可能となる。 According to the above-mentioned method of using an existing ship, it is possible to effectively use the existing ship and manufacture a ship of an appropriate scale at low cost.
１　既存船舶
２、２Ｃ、２Ｄ、２Ｘ、２Ｙ　船体
２ａ　船首
２ｂ　船底
２ｈ　上部構造
２ｋ　貨物搭載区画
２ｍ　機関室
２ｒ　船尾
２ｓ　舷側
２ｔ　上甲板
３、３Ａ、３Ｂ、３Ｃ、３Ｄ　タンク
３ａ　上部
５Ａ　船首側船体部
５Ｂ　船尾側船体部
５Ｃ、５Ｄ　中間船体部
５ａ　端部
５ｂ　端部
５ｆ　前端
５ｒ　後端
６　船首側配線
７　船尾側配線
８　接続板
９、９Ａ、９Ｂ　隔壁
１０Ａ、１０Ｂ　船舶
２０　接続用船体部
２０ａ　船首側接続部
２０ｂ　船底
２０ｃ　中間接続部
２０ｒ　船尾側接続部
２０ｓ　舷側
２０ｔ　上甲板
２１　接続用配線
２３　マニホールド
２４　カーゴ機器
２５　バラストタンク
３０Ａ、３０Ｂ、３０Ｃ　浮体式貯留設備
３１Ａ、３１Ｂ、３１Ｃ　タンクユニット
３３Ａ　第一フロート部
３３Ｂ　第二フロート部
３３ｂ　船底
３３ｃ　タンクユニット接続部
３３ｄ　端板
３３ｓ　舷側
３３ｔ　上甲板
３４　空所
３５　係船装置
３７　カーゴポンプ
３８　マニホールド
３９　再ガス化装置
４０　艤装品
Ｄａ　船首尾方向
Ｓ１　タンクユニット切り出し工程
Ｓ２、Ｓ１３　船体接合工程（新たな船舶を製造する工程）
Ｓ３　フロート取付工程
Ｓ４　艤装品取付工程
Ｓ５　設置工程
Ｓ１２　接続用船体挿入工程 1 Existing Ship 2, 2C, 2D, 2X, 2Y Hull 2a Bow 2b Ship Bottom 2h Upper Structure 2k Cargo Loading Section 2m Engine Room 2r Stern 2s Portside 2t Upper Deck 3, 3A, 3B, 3C, 3D Tank 3a Upper 5A Bow Hull Part 5B Stern side hull part 5C, 5D Intermediate hull part 5a End part 5b End part 5f Front end 5r Rear end 6 Bow side wire 7 Stern side wire 8 Connection plate 9, 9A, 9B Bulkhead 10A, 10B Ship 20 Connection hull part 20a Bow side connection part 20b Ship bottom 20c Intermediate connection part 20r Stern side connection part 20s Port side 20t Upper deck 21 Connection wiring 23 Manifold 24 Cargo equipment 25 Ballast tanks 30A, 30B, 30C Floating type storage facilities 31A, 31B, 31C Tank unit 33A No. One float part 33B Second float part 33b Ship bottom 33c Tank unit connecting part 33d End plate 33s Side 33t Upper deck 34 Vacancy 35 Mooring device 37 Cargo pump 38 Manifold 39 Regasification device 40 Outfitting equipment Da Bow-stern direction S1 Tank unit cutting process S2, S13 Hull joining process (process for manufacturing a new ship)
S3 Float installation process S4 Outfitting equipment installation process S5 Installation process S12 Connection hull insertion process

Claims (5)

  1. 　複数のタンクが船首尾方向に配列された船体を有する既存船舶から、前記複数のタンクのうち一部のタンク及び、前記船体のうち前記一部のタンクが設けられている船首尾方向の一部の船体を含む中間船体部を、タンクユニットとして切り出す工程と、
    　前記既存船舶において、前記タンクユニットとして切り出された前記中間船体部よりも船尾側に配置されていた、機関室を含む船尾側船体部の船首側に、船首側船体部を形成することで、新たな船舶を製造する工程と、
    　を含む既存船舶の利用方法。     From an existing ship having a hull in which a plurality of tanks are arranged in the bow-stern direction, a part of the tanks of the plurality of tanks and a part of the hull in the bow-stern direction in which the part of the tanks are provided A step of cutting out the intermediate hull part including the hull of
    In the existing ship, by forming the bow-side hull portion on the bow side of the stern-side hull portion that is arranged on the stern side of the intermediate hull portion cut out as the tank unit, including the engine room, The process of manufacturing a large ship,
    How to use existing vessels including.
  2. 　前記船首側船体部は、前記既存船舶の前記中間船体部よりも船首側に配置されていた前記既存船舶の船首側船体部を用いる
    　請求項１に記載の既存船舶の利用方法。     The method for utilizing an existing ship according to claim 1, wherein the bow-side hull part uses the bow-side hull part of the existing ship that is arranged on the bow side of the intermediate hull part of the existing ship.
  3. 　前記新たな船舶を製造する工程では、前記船首側船体部の後端と前記船尾側船体部の前端との間に、前記船首側船体部と前記船尾側船体部とを接続する接続用船体部を追設する　請求項１又は２に記載の既存船舶の利用方法。 In the step of manufacturing the new ship, a connecting hull part for connecting the bow side hull part and the stern side hull part between the rear end of the bow side hull part and the front end of the stern side hull part. How to use the existing ship according to claim 1 or 2.
  4. 　前記タンクユニットを、浮体式貯留設備として設置する工程をさらに含む
    　請求項１から３の何れか一項に記載の既存船舶の利用方法。     The method of using the existing ship according to any one of claims 1 to 3, further comprising a step of installing the tank unit as a floating storage facility.
  5. 　前記タンクユニットを、前記浮体式貯留設備として設置する工程に先立ち、前記タンクユニットに、フロートを取り付ける工程と、
    　前記タンクユニット及び前記フロートの少なくとも一方に浮体式貯留設備としての艤装品を取り付ける工程と、をさらに含む
    　請求項４に記載の既存船舶の利用方法。     Prior to the step of installing the tank unit as the floating storage facility, a step of attaching a float to the tank unit,
    The method of using the existing ship according to claim 4, further comprising a step of attaching an outfitting component as a floating storage facility to at least one of the tank unit and the float.
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