WO2023199864A1 - Marine vessel - Google Patents

Marine vessel Download PDF

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Publication number
WO2023199864A1
WO2023199864A1 PCT/JP2023/014397 JP2023014397W WO2023199864A1 WO 2023199864 A1 WO2023199864 A1 WO 2023199864A1 JP 2023014397 W JP2023014397 W JP 2023014397W WO 2023199864 A1 WO2023199864 A1 WO 2023199864A1
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WO
WIPO (PCT)
Prior art keywords
upper deck
fuel
wall
ship
fuel tanks
Prior art date
Application number
PCT/JP2023/014397
Other languages
French (fr)
Japanese (ja)
Inventor
誠 勝部
康充 久間
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
Publication of WO2023199864A1 publication Critical patent/WO2023199864A1/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 
    • B63B11/00—Interior subdivision of hulls
    • B63B11/04—Constructional features of bunkers, e.g. structural fuel tanks, or ballast tanks, e.g. with elastic walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/14—Hull parts
    • B63B3/48—Decks

Definitions

  • Patent Document 1 discloses a ship configured to include a fuel tank on the upper deck of the stern portion of the hull.
  • the fuel tank of Patent Document 1 contains liquefied gas that serves as fuel for the main engine that exerts the propulsive force for navigating the ship, and is arranged on the upper deck on the stern side of the upper structure that has a living area. ing.
  • a cylindrical fuel tank is known as a fuel tank for ships as disclosed in Patent Document 1. If a fuel tank of this type is arranged with its longitudinal direction aligned with the ship's width direction, the liquefied gas inside the fuel tank will oscillate due to the shaking of the ship during sailing, which is called sloshing. Put it away. Therefore, the fuel tank is often arranged so that its longitudinal direction coincides with the bow-stern direction connecting the bow and stern of the hull.
  • the limited space on the upper deck makes it difficult to efficiently increase the capacity of the fuel tank while suppressing sloshing. There is.
  • the present disclosure has been made to solve the above problems, and aims to provide a ship that can efficiently increase the capacity of a fuel tank in a limited space on the upper deck.
  • a ship includes a hull, a superstructure, and a fuel tank.
  • the hull has an upper deck.
  • the superstructure extends further upward from the upper deck.
  • the superstructure has a living area.
  • the fuel tank is provided on the stern side of the superstructure on the upper deck. The fuel tank extends in the ship height direction as its longitudinal direction.
  • the capacity of the fuel tank can be efficiently increased in a limited space on the upper deck.
  • FIG. 1 is a side view showing a schematic configuration of a ship according to a first embodiment of the present disclosure.
  • FIG. 1 is a plan view showing the configuration of the stern side of the ship according to the first embodiment of the present disclosure.
  • FIG. 1 is a diagram of a ship according to a first embodiment of the present disclosure viewed from the stern side.
  • FIG. 2 is a side view showing a schematic configuration of a ship according to a second embodiment of the present disclosure.
  • FIG. 3 is a diagram of a ship according to a second embodiment of the present disclosure viewed from the stern side.
  • FIG. 7 is a plan view showing a configuration on the stern side of a ship according to a modification of the embodiment of the present disclosure.
  • the ship 1A of this embodiment mainly includes a hull 2, an upper structure 7, fuel tanks 10A, 10B, and walls 20A, 20B.
  • the type of ship 1A is not limited to a specific type.
  • the types of ships 1A include, for example, bulk carriers, liquefied gas carriers such as liquefied natural gas (LNG), carbon dioxide, and ammonia, ferries, RORO ships (Roll-on/Roll-off ships), and PCTCs (Pure Cars). & Truck Carrier), passenger ships, etc.
  • the hull 2 has a pair of sides 3A and 3B, a bottom 4, and an upper deck 5, which form the outer shell.
  • the sides 3A and 3B have a pair of side skins forming port and starboard sides, respectively.
  • the bottom 4 has a bottom shell plate that connects these sides 3A and 3B.
  • the pair of sides 3A, 3B and the bottom 4 form the outer shell of the hull 2 into a U-shape in a cross section perpendicular to the bow and stern direction FA.
  • the hull 2 includes multiple deck layers including an upper deck 5 and a bottom deck 6.
  • the upper deck 5 is a full deck located at the top layer. The upper deck 5 is exposed to the outside.
  • the upper structure 7 is formed on the upper deck 5 on the stern 2b side of the hull 2.
  • the superstructure 7 has a living area.
  • an engine casing 30 is disposed on the upper deck 5 on the stern 2b side in the bow-stern direction FA with respect to the upper structure 7.
  • the engine casing 30 discharges exhaust gas etc. discharged from the prime mover 15, which will be described later.
  • a plurality of sections S are formed within the hull 2.
  • the plurality of sections S are arranged in the bow and aft direction FA within the hull 2.
  • a plurality of partition walls 11 are formed within the hull 2 at intervals in the bow and aft direction FA.
  • the space between the bottom deck 6 and the upper deck 5 is partitioned in the bow and aft direction FA by a plurality of partition walls 11.
  • a plurality of sections S are formed by partitioning the interior of the hull 2 in the bow and aft direction FA by a plurality of partition walls 11.
  • seven sections S1 to S7 are arranged in the bow and aft direction FA.
  • the section S1 located closest to the stern 2b in the bow-stern direction FA is an engine room.
  • a prime mover 15 is arranged within a compartment S1 serving as an engine room.
  • the prime mover 15 uses liquefied gas supplied from the fuel tanks 10A and 10B as fuel.
  • the prime mover 15 is, for example, a main engine and an auxiliary engine.
  • the prime mover 15, which serves as the main engine exerts a propulsive force for navigating the vessel 1A.
  • a prime mover 15 serving as a main engine rotationally drives a screw 8 provided outside the stern 2b of the hull 2.
  • the prime mover 15 as an auxiliary machine generates power used within the ship 1A.
  • the prime mover 15 as an auxiliary machine is, for example, a generator engine for driving a generator (not shown).
  • a steam turbine, a gas turbine, a reciprocating engine, etc. can be used as the prime mover 15, for example, a steam turbine, high-temperature, high-pressure steam is generated in a boiler using liquefied gas as fuel, and the velocity energy of this steam is converted into motive energy.
  • the other compartments S2 to S6 excluding the compartment S1 serving as the engine room and the compartment S7 closest to the bow 2a, are so-called cargo compartments that accommodate cargo to be transported by the vessel 1A. has been done.
  • the cargo compartments S2 to S6 store ore, grain, or the like as cargo.
  • the fuel tanks 10A and 10B are provided at the rear of the hull 2.
  • Fuel tanks 10A and 10B are provided on the upper deck 5.
  • the fuel tanks 10A and 10B are arranged on the stern 2b side of the upper structure 7 in the bow-stern direction FA.
  • the fuel tanks 10A and 10B each store liquefied gas, such as ammonia, which serves as fuel for the prime mover 15, which will be described later.
  • the fuel tanks 10A and 10B are arranged at intervals in the ship width direction Dw.
  • the fuel tank 10A disposed on one side in the transverse direction Dw and the fuel tank 10B disposed on the other side in the transverse direction Dw are arranged symmetrically in the transverse direction Dw of the hull 2. has been done.
  • the fuel tanks 10A and 10B each have a cylindrical shape with a circular cross section extending in the ship height direction Dv.
  • the fuel tanks 10A and 10B have a dimension H in the longitudinal direction, that is, in the ship height direction Dv, which is larger than the diameter D of the circular cross section.
  • a case is shown in which the central axes of the cylindrical fuel tanks 10A and 10B extend in a direction perpendicular to the upper surface of the upper deck 5, but the central axes of the fuel tanks 10A and 10B are It is not limited to the case where it extends in a direction perpendicular to the upper surface of the deck 5.
  • the angle between the central axes of the fuel tanks 10A, 10B and the upper surface of the upper deck 5 may be slightly smaller than 90 degrees.
  • the fuel tanks 10A and 10B have a cylindrical tank main body portion 10m, an upper end plate portion 10t, and a lower end plate portion 10b.
  • the upper mirror plate portion 10t closes the upper end portion of the tank body portion 10m.
  • the upper mirror plate portion 10t has a hemispherical shape whose outer diameter gradually decreases from the bottom to the top.
  • the lower end plate portion 10b closes the lower end portion of the tank body portion 10m.
  • the lower mirror plate portion 10b has a hemispherical shape whose outer diameter gradually decreases from the top to the bottom.
  • the fuel tanks 10A and 10B are each supported on the upper deck 5 via a support member 12.
  • the support member 12 may be a plurality of leg members (not shown) or may be a cylindrical skirt member extending in the ship height direction Dv.
  • the walls 20A and 20B are arranged on the stern 2b side in the bow-stern direction FA with respect to the upper structure 7 and the engine casing 30.
  • the wall 20A is arranged corresponding to the fuel tank 10A.
  • the wall body 20B is arranged corresponding to the fuel tank 10B.
  • the walls 20A and 20B are made of steel and extend upward from the upper deck 5. It is preferable that the walls 20A, 20B have the same height or more as the height (dimension H) of the fuel tanks 10A, 10B. As shown in FIGS. 2 and 3, the wall body 20A has a first wall portion 21A and a second wall portion 22A, and these first wall portions 21A and second wall portions 22A form a It is shaped like a letter. Similarly, the wall body 20B also has a first wall portion 21B and a second wall portion 22B, and the first wall portion 21B and the second wall portion 22B form an L-shape in plan view.
  • the first wall portion 21A of the wall body 20A is arranged between the fuel tank 10A and the upper structure 7.
  • the first wall portion 21A of the wall body 20A extends inward in the ship width direction Dw from one side 3A.
  • the second wall 22A of the wall 20A extends from the end of the first wall 21A on the center side in the ship width direction Dw to the stern 2b in the bow and stern direction FA.
  • the first wall portion 21A of the wall body 20A partitions the fuel tank 10A and the upper structure 7.
  • the first wall portion 21A of the wall body 20A is arranged to cover the upper structure 7 when viewed from the fuel tank 10A.
  • the first wall portion 21B of the wall body 20B is arranged between the fuel tank 10B and the upper structure 7.
  • the first wall portion 21B of the wall body 20B extends inward in the ship width direction Dw from the other side 3B.
  • the first wall portion 21B of the wall body 20B is arranged to cover the upper structure 7 when viewed from the fuel tank 10B.
  • the second wall portion 22B of the wall body 20B extends from the center end of the first wall portion 21B in the ship width direction Dw to the stern 2b in the bow and aft direction FA.
  • the second wall portion 22A of the wall body 20A and the second wall portion 22B of the wall body 20B are spaced apart from each other in the ship width direction Dw.
  • the wall 20A and the fuel tank 10A are connected by tank support members 25A and 26A.
  • One end of the tank support member 25A is connected to the first wall portion 21A of the wall body 20A, and the other end is connected to the fuel tank 10A.
  • One end of the tank support member 26A is connected to the second wall portion 22A of the wall body 20A, and the other end is connected to the fuel tank 10A.
  • a plurality of tank support members 25A and 26A are arranged at intervals in the horizontal direction and the ship height direction Dv, respectively.
  • the wall body 20B and the fuel tank 10B are connected by a plurality of tank support members 25B and 26B.
  • One end of the tank support member 25B is connected to the first wall portion 21B of the wall body 20B, and the other end is connected to the fuel tank 10B.
  • One end of the tank support member 26B is connected to the second wall portion 22B of the wall body 20B, and the other end is connected to the fuel tank 10B.
  • a plurality of tank support members 25B and 26B are arranged at intervals in the horizontal direction and the ship height direction Dv, respectively.
  • An escape boat 40 is arranged between the second wall 22A of the wall 20A and the second wall 22B of the wall 20B.
  • the escape boat 40 is provided on the stern 2b side of the upper structure 7 on the upper deck 5.
  • the second wall portion 22A partitions the fuel tank 10A and the escape boat 40.
  • the second wall portion 22B partitions the fuel tank 10B and the escape boat 40.
  • the second wall portions 22A, 22B cover the escape boat 40 when viewed from the fuel tanks 10A, 10B.
  • a vent post 35 is arranged on the stern 2b side of the upper structure 7 on the upper deck 5.
  • the vent post 35 is capable of discharging vent gas and the like from the cargo tanks mounted in the cargo compartments S2 to S6 into the atmosphere. Further, the vent post 35 allows vent gas and the like in the fuel tanks 10A, 10B and some sections of the section S1 to be discharged into the atmosphere during standby.
  • the vent post 35 is arranged, for example, on the stern 2b side with respect to the first wall portion 21A of the wall body 20B.
  • the fuel tanks 10A and 10B extend in the ship height direction Dv as a longitudinal direction. Thereby, the capacity of the fuel tanks 10A, 10B can be increased while suppressing the area occupied by the fuel tanks 10A, 10B on the upper deck 5. Furthermore, since the fuel tanks 10A and 10B are not configured to extend in the ship width direction Dw, sloshing, in which the fuel stored in the fuel tanks 10A and 10B shakes with the hull 2, is less likely to occur. Furthermore, fuel tanks 10A and 10B are provided on the stern 2b side of the upper structure 7.
  • first walls 21A, 21B of the walls 20A, 20B partition the fuel tanks 10A, 10B and the upper structure 7, so that even if the fuel stored in the fuel tanks 10A, 10B leaks, Even if there is, it is possible to more effectively prevent fuel from reaching the upper structure 7.
  • the walls 20A and 20B can also be used as fireproof sections for the upper structure 7. Therefore, by providing the walls 20A and 20B, the distance between the fuel tanks 10A and 10B and the superstructure 7 in the bow and stern direction FA can be reduced, and the limited space on the upper deck 5 can be used effectively. Can be done.
  • the fuel stored in the fuel tanks 10A, 10B can be prevented from leaking. Even in such a case, fuel is prevented from reaching the escape boat 40.
  • the fuel tanks 10A, 10B can be It is firmly supported by the walls 20A, 20B via 25A, 25B, 26A, 26B. Thereby, the fuel tanks 10A and 10B whose longitudinal direction is the ship height direction Dv can be supported firmly and stably.
  • the walls 20A, 20B are at least the same height as the fuel tanks 10A, 10B, even if the fuel stored in the fuel tanks 10A, 10B leaks, the fuel will not flow upward. This can be more effectively suppressed from affecting the structure 7.
  • vent post 35 By disposing the vent post 35 on the stern 2b side of the wall 20B, exhaust gas discharged from the vent post 35 can be suppressed from reaching the upper structure 7 side.
  • the ship 1B of this embodiment mainly includes a hull 2B, an upper structure 7, fuel tanks 10A, 10B, and walls 20C, 20D.
  • the upper deck 5 of the hull 2B in this embodiment has a first upper deck 5A on the bow 2a side and a second upper deck 5B on the stern 2b side.
  • the second upper deck 5B formed on the stern 2b side of the upper deck 5 is formed at a lower position than the first upper deck 5A on the bow 2a side.
  • the first upper deck 5A is formed closer to the bow 2a in the bow and aft direction FA than the second upper deck 5B, and is provided with an upper structure 7, an engine casing 30, and the like.
  • the second upper deck 5B is arranged on the bow 2a side in the bow and aft direction FA with respect to the first upper deck 5A.
  • the fuel tanks 10A, 10B and the walls 20C, 20D are arranged on the second upper deck 5B.
  • the fuel tanks 10A and 10B are arranged at intervals in the ship width direction Dw, as in the first embodiment.
  • the fuel tanks 10A and 10B each extend in the ship height direction Dv as a longitudinal direction.
  • the walls 20C and 20D are arranged on the stern 2b side in the bow-stern direction FA with respect to the upper structure 7 and the engine casing 30.
  • the walls 20C and 20D are arranged corresponding to the fuel tanks 10A and 10B, respectively.
  • the wall body 20C is arranged corresponding to the fuel tank 10A.
  • the wall body 20D is arranged corresponding to the fuel tank 10B.
  • the walls 20C and 20D are made of steel and extend upward from the second upper deck 5B, which is a part of the upper deck 5. It is preferable that the walls 20C and 20D have the same height or more as the height of the fuel tanks 10A and 10B. Like the walls 20A and 20B of the first embodiment, the walls 20C and 20D each have an L-shape in plan view, and have first wall portions 21A and 21B and second wall portions 22A and 22B. have.
  • An escape boat 40 is arranged between the second wall 22A of the wall 20C and the second wall 22B of the wall 20D.
  • the escape boat 40 is arranged on the second upper deck 5B, which is a part of the upper deck 5.
  • the vent post 35 is arranged on the stern 2b side with respect to the first wall portion 21B of the wall body 20D.
  • the vent post 35 is arranged on the first upper deck 5A extending toward the stern 2b side with respect to the first wall portion 21B because it is necessary to set its height to a predetermined height or more.
  • the fuel tanks 10A, 10B are arranged on the second upper deck 5B, which is formed at a lower position than the first upper deck 5A that supports the upper structure 7, so that the fuel tanks 10A, 10B and the installation heights of walls 20A and 20B are reduced.
  • the center of gravity of the hull 2 can be lowered, which can contribute to improving the stability of the hull 2.
  • the fuel tanks 10A and 10B extend with the ship height direction Dv as the longitudinal direction, so that the capacity of the fuel tanks 10A and 10B can be reduced in the limited space on the upper deck 5. It becomes possible to increase the amount efficiently.
  • first walls 21A, 21B of the walls 20C, 20D partition the fuel tanks 10A, 10B and the upper structure 7, so that even if the fuel stored in the fuel tanks 10A, 10B leaks, Even if there is, it is possible to more effectively prevent fuel from reaching the upper structure 7.
  • the walls 20C and 20D can also be used as fireproof sections for the upper structure 7. Therefore, by providing the walls 20C and 20D, the distance between the fuel tanks 10A and 10B and the superstructure 7 in the bow and stern direction FA can be reduced, and the limited space on the upper deck 5 can be used effectively. I can do it.
  • the two fuel tanks 10A, 10B are individually surrounded by the walls 20A, 20C and the walls 20B, 20D, but the invention is not limited to this.
  • the two fuel tanks 10E and 10F may be surrounded by one wall 20E in the ship 1C.
  • the two fuel tanks 10E and 10F are arranged at intervals in the ship width direction Dw.
  • the fuel tanks 10E and 10F of the modified example of this embodiment are arranged biased toward the other side in the ship width direction Dw.
  • a fuel tank 10E is arranged on one side in the ship width direction Dw, and a fuel tank 10F is arranged on the other side in the ship width direction Dw.
  • the escape boat 40 is disposed on one side of the fuel tank 10E in the ship width direction Dw.
  • the wall body 20E is arranged on the stern 2b side in the bow-stern direction FA with respect to the upper structure 7 and the engine casing 30.
  • the wall 20E is made of steel and extends upward from the upper deck 5. It is preferable that the wall 20E has the same height or more as the height (dimension H; see FIG. 1) of the fuel tanks 10E, 10F.
  • the wall body 20E has an L-shape when viewed from above, and includes a first wall portion 21E and a second wall portion 22E.
  • the first wall portion 21E is arranged between the fuel tanks 10E, 10F and the upper structure 7.
  • the first wall portion 21E extends inward in the ship width direction Dw from the other side 3B.
  • the second wall portion 22E extends from the center end of the first wall portion 21E in the ship width direction Dw to the stern 2b in the bow and aft direction FA.
  • the first wall portion 21E partitions the fuel tanks 10E, 10F and the upper structure 7.
  • the first wall portion 21E is arranged to cover the upper structure 7 when viewed from the fuel tanks 10E and 10F.
  • the wall 20E and the fuel tank 10E are connected by tank support members 25E, 26E, and 27E.
  • a plurality of tank support members 25E, 26E, and 27E are arranged at intervals in the horizontal direction and the ship height direction Dv, respectively.
  • One end of the tank support member 25E is connected to the first wall portion 21E, and the other end of the tank support member 25E is connected to the fuel tanks 10E, 10F.
  • One end of the tank support member 26E is connected to the second wall portion 22E, and the other end of the tank support member 26E is connected to the fuel tank 10E.
  • One end of the tank support member 27E is connected to the fuel tank 10E, and the other end of the tank support member 27E is connected to the fuel tank 10F.
  • An escape boat 40 is arranged on one side of the second wall portion 22E of the wall body 20E in the ship width direction Dw. That is, the fuel tank 10F, the fuel tank 10E, the second wall portion 22E, and the escape boat 40 are arranged side by side in the ship width direction Dw.
  • the second wall portion 22E partitions the fuel tank 10E and the escape boat 40.
  • the second wall portion 22E covers the escape boat 40 when viewed from the fuel tank 10E side.
  • the capacity of the fuel tanks 10E, 10F can be increased. Furthermore, since the first wall portion 21E of the wall body 20E partitions between the fuel tanks 10E, 10F and the upper structure 7, even if the fuel stored in the fuel tanks 10E, 10F leaks, It is possible to more effectively prevent fuel from reaching the upper structure 7. Furthermore, by arranging the second wall portion 22E of the wall body 20E between the escape boat 40 and the fuel tanks 10E, 10F, even if the fuel stored in the fuel tanks 10E, 10F leaks, Also, fuel is prevented from reaching the escape boat 40.
  • the embodiment of the present disclosure has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and includes design changes within the scope of the gist of the present disclosure.
  • the two fuel tanks 10A and 10B, and the fuel tank 10E and 10F are provided, but the number of fuel tanks may be only one, or three or more may be provided. Good too.
  • the plurality of fuel tanks may be arranged not only in the transverse direction Dw but also in the bow and aft direction FA.
  • the walls 20A to 20E are L-shaped in plan view, but the fuel tanks 10A, 10B, 10E, 10F, the upper structure 7, the escape boat 40, the evacuation route to the escape boat 40, etc.
  • the planar shapes of the walls 20A to 20E there are no limitations on the planar shapes of the walls 20A to 20E, as long as the purpose of separating them can be achieved.
  • the corner portion of the wall body 20A where the first wall portion 21A and the second wall portion 22A intersect may have a shape that is obliquely chamfered in plan view.
  • the walls 20A to 20E may have an arcuate shape in plan view, or may have any other planar shape.
  • the walls 20A to 20E extend upward from the upper deck 5, but the walls 20A to 20E may extend obliquely upward from the upper deck 5, for example.
  • vent post 35 is arranged on the fuel tanks 10B, 10F side with respect to the walls 20B, 20D, 20E, but the vent post 35 can be moved to other positions as appropriate.
  • Ships 1A, 1B, and 1C include a hull 2 having an upper deck 5, an upper structure 7 extending further upward from the upper deck 5 and having a living area, and the upper deck Fuel tanks 10A, 10B, 10E, and 10F are provided on the stern 2b side of the upper structure 7 in No. 5 and extend with the ship height direction Dv as the longitudinal direction.
  • the capacity of the fuel tanks 10A, 10B, 10E, 10F can be increased while suppressing the area occupied by the fuel tanks 10A, 10B, 10E, 10F on the upper deck 5.
  • sloshing in which the fuel stored in the fuel tanks 10A, 10B, 10E, and 10F shakes with the hull 2, is less likely to occur.
  • the fuel tanks 10A, 10B, 10E, and 10F are provided on the stern 2b side of the superstructure 7, even if the fuel stored in the fuel tanks 10A, 10B, 10E, and 10F leaks, , the fuel flows to the stern 2b side in the bow-stern direction FA, which is the opposite side to the traveling direction of the hull 2.
  • the ships 1A, 1B, 1C according to the second aspect are the ships 1A, 1B, 1C of (1), which extend upward from the upper deck 5, and have the fuel tanks 10A, 10B, 10E. , 10F and the upper structure 7 are provided with walls 20A to 20E having first wall portions 21A, 21B, and 21E.
  • the first walls 21A, 21B, 21E of the walls 20A to 20E partition the fuel tanks 10A, 10B, 10E, 10F and the upper structure 7, so that in the unlikely event that the fuel tanks 10A, 10B, 10E, Even if the fuel stored in 10F leaks, it is possible to more effectively prevent the fuel from reaching the upper structure 7.
  • the walls 20A to 20E can also be used as fireproof compartments for the upper structure 7. Therefore, by providing the walls 20A to 20E, it is possible to narrow the distance between the fuel tanks 10A, 10B, 10E, 10F and the superstructure 7 in the bow and stern direction FA, thereby freeing up the limited space on the upper deck 5. It can be used effectively.
  • the ships 1A, 1B, 1C according to the third aspect are the ships 1A, 1B, 1C according to (2), and further include an escape boat 40 on the stern 2b side of the upper structure 7 on the upper deck 5.
  • the walls 20A to 20E have second wall portions 22A, 22B, and 22E that partition between the fuel tanks 10A, 10B, 10E, and 10F and the escape boat 40.
  • the ships 1A, 1B, 1C according to the fourth aspect are the ships 1A, 1B, 1C of (2) or (3), and one end is connected to the fuel tank 10A, 10B, 10E, 10F. , tank support members 25A, 25B, 25E, 26A, 26B, 26E, and 27E, the other ends of which are connected to the walls 20A to 20E.
  • tank support members 25A, 25B, 25E, 26A, 26B, 26E, 27E are provided, one end of which is connected to the fuel tanks 10A, 10B, 10E, 10F, and the other end of which is connected to the walls 20A to 20E.
  • fuel tanks 10A, 10B, 10E, and 10F are supported by walls 20A to 20E via tank support members 25A, 25B, 25E, 26A, 26B, 26E, and 27E.
  • the fuel tanks 10A, 10B, 10E, and 10F whose longitudinal direction is the ship height direction Dv can be stably supported.
  • the ships 1A, 1B, 1C according to the fifth aspect are the ships 1A, 1B, 1C of (2) or (3), and the walls 20A to 20E are the fuel tanks 10A, 10B, It is formed to have the same height or more as the height of 10E and 10F.
  • the walls 20A to 20E are at least the same height as the fuel tanks 10A, 10B, 10E, and 10F, fuel stored in the fuel tanks 10A, 10B, 10E, and 10F can be prevented from leaking. Even in such a case, it is possible to more effectively prevent fuel from reaching the upper structure 7.
  • the ships 1A, 1B, 1C according to the sixth aspect are the ships 1A, 1B, 1C of (2) or (3), and the fuel tanks 10A, 10B, 10E, 10F are the ships 1A, 1B, 1C according to the hull 2. A plurality of them are arranged at intervals in the ship width direction Dw.
  • the ship 1B according to the seventh aspect is the ship 1B according to (2) or (3), in which the upper deck 5 includes a first upper deck 5A located below the superstructure 7, and a first upper deck 5A located below the superstructure 7. a second upper deck 5B formed on at least a part of the stern 2b side of the hull 2 and formed at a lower position than the first upper deck 5A, the fuel tanks 10A, 10B, and the wall 20C; , 20D are arranged on the second upper deck 5B.
  • the fuel tanks 10A, 10B are arranged on the second upper deck 5B formed at a lower position than the first upper deck 5A that supports the upper structure 7, the fuel tanks 10A, 10B and the wall
  • the installation height of 20C and 20D is lower.
  • the center of gravity of the hull 2 can be lowered, which can contribute to improving the stability of the hull 2.
  • the ships 1A, 1B, 1C according to the eighth aspect are the ships 1A, 1B, 1C according to (2) or (3), and include a vent post for discharging gas generated within the hull 2 to the outside. 35, and the vent post 35 is arranged on the stern 2b side of the walls 20A to 20E.
  • vent post 35 is arranged on the stern 2b side of the walls 20A to 20E, so that gas discharged from the vent post 35 can be prevented from reaching the upper structure 7 side.
  • the capacity of the fuel tank can be efficiently increased in a limited space on the upper deck.

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  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

This marine vessel comprises: a hull having an upper deck; a top structure that extends further upward from the upper deck and has a living quarters; and a fuel tank that is provided on the stern side of the top structure of the upper deck, and whose longitudinal direction extends in the ship height direction.

Description

船舶ship
　本開示は、船舶に関する。
　本願は、２０２２年４月１５日に日本に出願された特願２０２２－０６７６０３号について優先権を主張し、その内容をここに援用する。 TECHNICAL FIELD This disclosure relates to ships.
This application claims priority to Japanese Patent Application No. 2022-067603 filed in Japan on April 15, 2022, the contents of which are incorporated herein.
　特許文献１には、船体の船尾部の上甲板上に、燃料タンクを備えた構成の船舶が開示されている。この特許文献１の燃料タンクは、船舶を航行させる推進力を発揮する主機等の燃料となる液化ガスを収容しており、居住区を有する上部構造に対し、船尾側の上甲板上に配置されている。 Patent Document 1 discloses a ship configured to include a fuel tank on the upper deck of the stern portion of the hull. The fuel tank of Patent Document 1 contains liquefied gas that serves as fuel for the main engine that exerts the propulsive force for navigating the ship, and is arranged on the upper deck on the stern side of the upper structure that has a living area. ing.
日本国特許第６９６６６６１号公報Japanese Patent No. 6966661
　特許文献１のような船舶の燃料タンクとしては、円筒状のものが知られている。このような形状の燃料タンクは、その長手方向と船幅方向とを一致させて配置した場合、航行時の船体の揺れにより、燃料タンク内の液化ガスが揺動する、いわゆるスロッシングが大きくなってしまう。そのため、燃料タンクは、その長手方向と、船体の船首と船尾とを結ぶ船首尾方向とを一致させて配置されることが多い。
　しかしながら、燃料タンクの容量増大を要望される場合があり、このような場合、上甲板上の限られたスペースでは、スロッシングを抑制しつつ燃料タンクの容量を効率良く増大させることが困難となっている。 A cylindrical fuel tank is known as a fuel tank for ships as disclosed in Patent Document 1. If a fuel tank of this type is arranged with its longitudinal direction aligned with the ship's width direction, the liquefied gas inside the fuel tank will oscillate due to the shaking of the ship during sailing, which is called sloshing. Put it away. Therefore, the fuel tank is often arranged so that its longitudinal direction coincides with the bow-stern direction connecting the bow and stern of the hull.
However, there are cases where it is requested to increase the capacity of the fuel tank, and in such cases, the limited space on the upper deck makes it difficult to efficiently increase the capacity of the fuel tank while suppressing sloshing. There is.
　本開示は、上記課題を解決するためになされたものであって、上甲板上の限られたスペースで、燃料タンクの容量を効率良く増大させることができる船舶を提供することを目的とする。 The present disclosure has been made to solve the above problems, and aims to provide a ship that can efficiently increase the capacity of a fuel tank in a limited space on the upper deck.
　上記課題を解決するために、本開示に係る船舶は、船体と、上部構造と、燃料タンクと、を備える。前記船体は、上甲板を有する。前記上部構造は、前記上甲板からさらに上方に向かって延びる。前記上部構造は、居住区を有する。前記燃料タンクは、前記上甲板における前記上部構造の船尾側に設けられる。前記燃料タンクは、船高さ方向を長手方向として延びる。 In order to solve the above problems, a ship according to the present disclosure includes a hull, a superstructure, and a fuel tank. The hull has an upper deck. The superstructure extends further upward from the upper deck. The superstructure has a living area. The fuel tank is provided on the stern side of the superstructure on the upper deck. The fuel tank extends in the ship height direction as its longitudinal direction.
　本開示の船舶によれば、上甲板上の限られたスペースで、燃料タンクの容量を効率良く増大させることができる。 According to the ship of the present disclosure, the capacity of the fuel tank can be efficiently increased in a limited space on the upper deck.
本開示の第一実施形態に係る船舶の概略構成を示す側面図である。1 is a side view showing a schematic configuration of a ship according to a first embodiment of the present disclosure. 本開示の第一実施形態に係る船舶の船尾側の構成を示す平面図である。FIG. 1 is a plan view showing the configuration of the stern side of the ship according to the first embodiment of the present disclosure. 本開示の第一実施形態に係る船舶を船尾側から見た図である。FIG. 1 is a diagram of a ship according to a first embodiment of the present disclosure viewed from the stern side. 本開示の第二実施形態に係る船舶の概略構成を示す側面図である。FIG. 2 is a side view showing a schematic configuration of a ship according to a second embodiment of the present disclosure. 本開示の第二実施形態に係る船舶を船尾側から見た図である。FIG. 3 is a diagram of a ship according to a second embodiment of the present disclosure viewed from the stern side. 本開示の実施形態の変形例に係る船舶の船尾側の構成を示す平面図である。FIG. 7 is a plan view showing a configuration on the stern side of a ship according to a modification of the embodiment of the present disclosure.
　以下、本開示の実施形態に係る船舶について、図１～図６を参照して説明する。
＜第一実施形態＞
（船舶の全体構成）
　図１～図３に示すように、この実施形態の船舶１Ａは、船体２と、上部構造７と、燃料タンク１０Ａ，１０Ｂと、壁体２０Ａ，２０Ｂと、を主に備えている。船舶１Ａの船種は、特定のものに限られない。船舶１Ａの船種は、例えば、ばら積み貨物船、液化天然ガス（ＬＮＧ）、二酸化炭素、アンモニア等の液化ガスの運搬船、フェリー、ＲＯＲＯ船（Ｒｏｌｌ－ｏｎ／Ｒｏｌｌ－ｏｆｆ船）、ＰＣＴＣ（Ｐｕｒｅ　Ｃａｒ　＆　Ｔｒｕｃｋ　Ｃａｒｒｉｅｒ）、客船等を例示できる。 Hereinafter, a ship according to an embodiment of the present disclosure will be described with reference to FIGS. 1 to 6.
<First embodiment>
(Overall configuration of the ship)
As shown in FIGS. 1 to 3, the ship 1A of this embodiment mainly includes a hull 2, an upper structure 7, fuel tanks 10A, 10B, and walls 20A, 20B. The type of ship 1A is not limited to a specific type. The types of ships 1A include, for example, bulk carriers, liquefied gas carriers such as liquefied natural gas (LNG), carbon dioxide, and ammonia, ferries, RORO ships (Roll-on/Roll-off ships), and PCTCs (Pure Cars). & Truck Carrier), passenger ships, etc.
　船体２は、その外殻をなす、一対の舷側３Ａ，３Ｂと、船底４と、上甲板５と、を有している。舷側３Ａ，３Ｂは、左右舷側をそれぞれ形成する一対の舷側外板を有する。船底４は、これら舷側３Ａ，３Ｂを接続する船底外板を有する。これら一対の舷側３Ａ，３Ｂ及び船底４により、船体２の外殻は、船首尾方向ＦＡに直交する断面において、Ｕ字状を成している。船体２は、その内部に、上甲板５、底部甲板６を含む、複数層の甲板を備えている。上甲板５は、最上層に配置される全通甲板である。上甲板５は、外部に露出している。 The hull 2 has a pair of sides 3A and 3B, a bottom 4, and an upper deck 5, which form the outer shell. The sides 3A and 3B have a pair of side skins forming port and starboard sides, respectively. The bottom 4 has a bottom shell plate that connects these sides 3A and 3B. The pair of sides 3A, 3B and the bottom 4 form the outer shell of the hull 2 into a U-shape in a cross section perpendicular to the bow and stern direction FA. The hull 2 includes multiple deck layers including an upper deck 5 and a bottom deck 6. The upper deck 5 is a full deck located at the top layer. The upper deck 5 is exposed to the outside.
　上部構造７は、船体２の船尾２ｂ側の上甲板５上に形成されている。上部構造７は、居住区を有している。
　図１、図２に示すように、上部構造７に対して、船首尾方向ＦＡの船尾２ｂ側の上甲板５には、エンジンケーシング３０が配置されている。エンジンケーシング３０は、後述する原動機１５から排出される排ガス等を排出する。 The upper structure 7 is formed on the upper deck 5 on the stern 2b side of the hull 2. The superstructure 7 has a living area.
As shown in FIGS. 1 and 2, an engine casing 30 is disposed on the upper deck 5 on the stern 2b side in the bow-stern direction FA with respect to the upper structure 7. The engine casing 30 discharges exhaust gas etc. discharged from the prime mover 15, which will be described later.
　図１に示すように、船体２内には、複数の区画Ｓが形成されている。複数の区画Ｓは、船体２内の船首尾方向ＦＡに配置されている。船体２内には、船首尾方向ＦＡに間隔をあけて形成された複数枚の区画壁１１が形成されている。一対の舷側３Ａ、３Ｂの間において、底部甲板６と上甲板５との間の空間は、複数枚の区画壁１１によって船首尾方向ＦＡに区切られている。船体２内が、複数枚の区画壁１１によって船首尾方向ＦＡに区切られることで、複数の区画Ｓが形成されている。本実施形態において、複数の区画Ｓとして、船首尾方向ＦＡに７つの区画Ｓ１～Ｓ７が配置されている。 As shown in FIG. 1, a plurality of sections S are formed within the hull 2. The plurality of sections S are arranged in the bow and aft direction FA within the hull 2. A plurality of partition walls 11 are formed within the hull 2 at intervals in the bow and aft direction FA. Between the pair of sides 3A and 3B, the space between the bottom deck 6 and the upper deck 5 is partitioned in the bow and aft direction FA by a plurality of partition walls 11. A plurality of sections S are formed by partitioning the interior of the hull 2 in the bow and aft direction FA by a plurality of partition walls 11. In this embodiment, as the plurality of sections S, seven sections S1 to S7 are arranged in the bow and aft direction FA.
　複数の区画Ｓ１～Ｓ７のうち、船首尾方向ＦＡで最も船尾２ｂ側に位置する区画Ｓ１は、機関室とされている。機関室としての区画Ｓ１内には、原動機１５が配置されている。原動機１５は、燃料タンク１０Ａ，１０Ｂから供給される液化ガスを燃料とする。本実施形態において、原動機１５は、例えば、主機、及び補機である。主機としての原動機１５は、船舶１Ａを航行させる推進力を発揮する。主機としての原動機１５は、船体２の船尾２ｂの外部に設けられたスクリュー８を回転駆動させる。補機としての原動機１５は、船舶１Ａ内で使用される動力を発生する。本実施形態では、補機としての原動機１５は、例えば、発電機（図示せず）を駆動させるための発電機用エンジンである。原動機１５としては、例えば、蒸気タービン、ガスタービン、レシプロエンジン等を用いることができる。なお、原動機１５が蒸気タービンの場合、液化ガスを燃料としてボイラーで高温高圧の蒸気を発生させて、この蒸気の速度エネルギーを動力エネルギーに変換する。 Of the plurality of sections S1 to S7, the section S1 located closest to the stern 2b in the bow-stern direction FA is an engine room. A prime mover 15 is arranged within a compartment S1 serving as an engine room. The prime mover 15 uses liquefied gas supplied from the fuel tanks 10A and 10B as fuel. In this embodiment, the prime mover 15 is, for example, a main engine and an auxiliary engine. The prime mover 15, which serves as the main engine, exerts a propulsive force for navigating the vessel 1A. A prime mover 15 serving as a main engine rotationally drives a screw 8 provided outside the stern 2b of the hull 2. The prime mover 15 as an auxiliary machine generates power used within the ship 1A. In this embodiment, the prime mover 15 as an auxiliary machine is, for example, a generator engine for driving a generator (not shown). As the prime mover 15, for example, a steam turbine, a gas turbine, a reciprocating engine, etc. can be used. Note that when the prime mover 15 is a steam turbine, high-temperature, high-pressure steam is generated in a boiler using liquefied gas as fuel, and the velocity energy of this steam is converted into motive energy.
　複数の区画Ｓ１～Ｓ７のうち、機関室としての区画Ｓ１と、最も船首２ａ側の区画Ｓ７とを除いた他の区画Ｓ２～Ｓ６は、船舶１Ａで運搬する貨物を収容する、いわゆる貨物区画とされている。本実施形態において、区画Ｓ２～Ｓ６の貨物区画は、貨物として、鉱石または穀物等を貯留する。 Among the plurality of compartments S1 to S7, the other compartments S2 to S6, excluding the compartment S1 serving as the engine room and the compartment S7 closest to the bow 2a, are so-called cargo compartments that accommodate cargo to be transported by the vessel 1A. has been done. In this embodiment, the cargo compartments S2 to S6 store ore, grain, or the like as cargo.
　図１～図３に示すように、燃料タンク１０Ａ，１０Ｂは、船体２の後部に設けられている。燃料タンク１０Ａ，１０Ｂは、上甲板５上に設けられている。燃料タンク１０Ａ，１０Ｂは、上部構造７に対し、船首尾方向ＦＡの船尾２ｂ側に配置されている。燃料タンク１０Ａ，１０Ｂは、それぞれ、後述する原動機１５の燃料となる液化ガス、例えばアンモニアを貯留する。図２、図３に示すように、本実施形態において、燃料タンク１０Ａ，１０Ｂは、船幅方向Ｄｗに間隔をあけて配置されている。本実施形態において、船幅方向Ｄｗの一方側に配置された燃料タンク１０Ａと、船幅方向Ｄｗの他方側に配置された燃料タンク１０Ｂとは、船体２の船幅方向Ｄｗで左右対称に配置されている。 As shown in FIGS. 1 to 3, the fuel tanks 10A and 10B are provided at the rear of the hull 2. Fuel tanks 10A and 10B are provided on the upper deck 5. The fuel tanks 10A and 10B are arranged on the stern 2b side of the upper structure 7 in the bow-stern direction FA. The fuel tanks 10A and 10B each store liquefied gas, such as ammonia, which serves as fuel for the prime mover 15, which will be described later. As shown in FIGS. 2 and 3, in this embodiment, the fuel tanks 10A and 10B are arranged at intervals in the ship width direction Dw. In this embodiment, the fuel tank 10A disposed on one side in the transverse direction Dw and the fuel tank 10B disposed on the other side in the transverse direction Dw are arranged symmetrically in the transverse direction Dw of the hull 2. has been done.
　図１、図３に示すように、燃料タンク１０Ａ，１０Ｂは、それぞれ、船高さ方向Ｄｖに延びる断面円形の筒状をなしている。燃料タンク１０Ａ，１０Ｂは、断面円形の直径Ｄよりも、長手方向すなわち船高さ方向Ｄｖの寸法Ｈの方が大きい。なお、本実施形態では、筒状の燃料タンク１０Ａ，１０Ｂの中心軸が上甲板５の上面から垂直な方向に延びている場合を示しているが、燃料タンク１０Ａ，１０Ｂの中心軸は、上甲板５の上面に対し垂直な方向に延びる場合に限られない。例えば、燃料タンク１０Ａ，１０Ｂの中心軸と上甲板５の上面とのなす角度は、９０度よりも僅かに小さくてもよい。 As shown in FIGS. 1 and 3, the fuel tanks 10A and 10B each have a cylindrical shape with a circular cross section extending in the ship height direction Dv. The fuel tanks 10A and 10B have a dimension H in the longitudinal direction, that is, in the ship height direction Dv, which is larger than the diameter D of the circular cross section. In this embodiment, a case is shown in which the central axes of the cylindrical fuel tanks 10A and 10B extend in a direction perpendicular to the upper surface of the upper deck 5, but the central axes of the fuel tanks 10A and 10B are It is not limited to the case where it extends in a direction perpendicular to the upper surface of the deck 5. For example, the angle between the central axes of the fuel tanks 10A, 10B and the upper surface of the upper deck 5 may be slightly smaller than 90 degrees.
　燃料タンク１０Ａ，１０Ｂは、円筒状をなすタンク本体部１０ｍと、上部鏡板部１０ｔと、下部鏡板部１０ｂと、を有している。上部鏡板部１０ｔは、タンク本体部１０ｍの上端部を塞いでいる。上部鏡板部１０ｔは、下方から上方に向かって外径寸法が漸次縮小する半球形状をなしている。下部鏡板部１０ｂは、タンク本体部１０ｍの下端部を塞いでいる。下部鏡板部１０ｂは、上方から下方に向かって外径寸法が漸次縮小する半球形状をなしている。燃料タンク１０Ａ，１０Ｂは、それぞれ、上甲板５上に、支持部材１２を介して支持されている。支持部材１２は、複数本の脚部材（図示せず）であってもよいし、船高さ方向Ｄｖに延びる筒状のスカート部材であってもよい。 The fuel tanks 10A and 10B have a cylindrical tank main body portion 10m, an upper end plate portion 10t, and a lower end plate portion 10b. The upper mirror plate portion 10t closes the upper end portion of the tank body portion 10m. The upper mirror plate portion 10t has a hemispherical shape whose outer diameter gradually decreases from the bottom to the top. The lower end plate portion 10b closes the lower end portion of the tank body portion 10m. The lower mirror plate portion 10b has a hemispherical shape whose outer diameter gradually decreases from the top to the bottom. The fuel tanks 10A and 10B are each supported on the upper deck 5 via a support member 12. The support member 12 may be a plurality of leg members (not shown) or may be a cylindrical skirt member extending in the ship height direction Dv.
　図１、図２に示すように、壁体２０Ａ，２０Ｂは、上部構造７、及びエンジンケーシング３０に対して船首尾方向ＦＡの船尾２ｂ側に配置されている。壁体２０Ａは、燃料タンク１０Ａに対応して配置されている。壁体２０Ｂは、燃料タンク１０Ｂに対応して配置されている。 As shown in FIGS. 1 and 2, the walls 20A and 20B are arranged on the stern 2b side in the bow-stern direction FA with respect to the upper structure 7 and the engine casing 30. The wall 20A is arranged corresponding to the fuel tank 10A. The wall body 20B is arranged corresponding to the fuel tank 10B.
　壁体２０Ａ，２０Ｂは、鋼製で、上甲板５から上方に向かって延びている。壁体２０Ａ，２０Ｂは、燃料タンク１０Ａ，１０Ｂの高さ（寸法Ｈ）と、同じ高さ以上とするのが好ましい。
　図２、図３に示すように、壁体２０Ａは、第一壁部２１Ａと、第二壁部２２Ａと、を有し、これら第一壁部２１Ａと第二壁部２２Ａとにより平面視Ｌ字状をなしている。同様に、壁体２０Ｂも、第一壁部２１Ｂと、第二壁部２２Ｂと、を有し、これら第一壁部２１Ｂと第二壁部２２Ｂとにより平面視Ｌ字状をなしている。 The walls 20A and 20B are made of steel and extend upward from the upper deck 5. It is preferable that the walls 20A, 20B have the same height or more as the height (dimension H) of the fuel tanks 10A, 10B.
As shown in FIGS. 2 and 3, the wall body 20A has a first wall portion 21A and a second wall portion 22A, and these first wall portions 21A and second wall portions 22A form a It is shaped like a letter. Similarly, the wall body 20B also has a first wall portion 21B and a second wall portion 22B, and the first wall portion 21B and the second wall portion 22B form an L-shape in plan view.
　壁体２０Ａの第一壁部２１Ａは、燃料タンク１０Ａと、上部構造７との間に配置されている。壁体２０Ａの第一壁部２１Ａは、一方の舷側３Ａから船幅方向Ｄｗの内側に向けて延びている。壁体２０Ａの第二壁部２２Ａは、第一壁部２１Ａの船幅方向Ｄｗの中央側の端部から、船首尾方向ＦＡの船尾２ｂまで延びている。壁体２０Ａの第一壁部２１Ａは、燃料タンク１０Ａと、上部構造７との間を仕切っている。壁体２０Ａの第一壁部２１Ａは、燃料タンク１０Ａから見て、上部構造７を覆うように配置されている。 The first wall portion 21A of the wall body 20A is arranged between the fuel tank 10A and the upper structure 7. The first wall portion 21A of the wall body 20A extends inward in the ship width direction Dw from one side 3A. The second wall 22A of the wall 20A extends from the end of the first wall 21A on the center side in the ship width direction Dw to the stern 2b in the bow and stern direction FA. The first wall portion 21A of the wall body 20A partitions the fuel tank 10A and the upper structure 7. The first wall portion 21A of the wall body 20A is arranged to cover the upper structure 7 when viewed from the fuel tank 10A.
　壁体２０Ｂの第一壁部２１Ｂは、燃料タンク１０Ｂと、上部構造７との間に配置されている。壁体２０Ｂの第一壁部２１Ｂは、他方の舷側３Ｂから船幅方向Ｄｗの内側に向けて延びている。壁体２０Ｂの第一壁部２１Ｂは、燃料タンク１０Ｂから見て、上部構造７を覆うように配置されている。壁体２０Ｂの第二壁部２２Ｂは、第一壁部２１Ｂの船幅方向Ｄｗの中央側の端部から、船首尾方向ＦＡの船尾２ｂまで延びている。壁体２０Ａの第二壁部２２Ａと、壁体２０Ｂの第二壁部２２Ｂとは、船幅方向Ｄｗに間隔をあけて配置されている。 The first wall portion 21B of the wall body 20B is arranged between the fuel tank 10B and the upper structure 7. The first wall portion 21B of the wall body 20B extends inward in the ship width direction Dw from the other side 3B. The first wall portion 21B of the wall body 20B is arranged to cover the upper structure 7 when viewed from the fuel tank 10B. The second wall portion 22B of the wall body 20B extends from the center end of the first wall portion 21B in the ship width direction Dw to the stern 2b in the bow and aft direction FA. The second wall portion 22A of the wall body 20A and the second wall portion 22B of the wall body 20B are spaced apart from each other in the ship width direction Dw.
　壁体２０Ａと、燃料タンク１０Ａとは、タンク支持部材２５Ａ，２６Ａにより接続されている。タンク支持部材２５Ａは、一端が壁体２０Ａの第一壁部２１Ａに接続され、他端が燃料タンク１０Ａに接続されている。タンク支持部材２６Ａは、一端が壁体２０Ａの第二壁部２２Ａに接続され、他端が燃料タンク１０Ａに接続されている。タンク支持部材２５Ａ，２６Ａは、それぞれ、水平方向、及び船高さ方向Ｄｖに間隔をあけて複数本配置されている。 The wall 20A and the fuel tank 10A are connected by tank support members 25A and 26A. One end of the tank support member 25A is connected to the first wall portion 21A of the wall body 20A, and the other end is connected to the fuel tank 10A. One end of the tank support member 26A is connected to the second wall portion 22A of the wall body 20A, and the other end is connected to the fuel tank 10A. A plurality of tank support members 25A and 26A are arranged at intervals in the horizontal direction and the ship height direction Dv, respectively.
　壁体２０Ｂと、燃料タンク１０Ｂとは、複数のタンク支持部材２５Ｂ，２６Ｂにより接続されている。タンク支持部材２５Ｂは、一端が壁体２０Ｂの第一壁部２１Ｂに接続され、他端が燃料タンク１０Ｂに接続されている。タンク支持部材２６Ｂは、一端が壁体２０Ｂの第二壁部２２Ｂに接続され、他端が燃料タンク１０Ｂに接続されている。タンク支持部材２５Ｂ，２６Ｂは、それぞれ、水平方向、及び船高さ方向Ｄｖに間隔をあけて複数本配置されている。 The wall body 20B and the fuel tank 10B are connected by a plurality of tank support members 25B and 26B. One end of the tank support member 25B is connected to the first wall portion 21B of the wall body 20B, and the other end is connected to the fuel tank 10B. One end of the tank support member 26B is connected to the second wall portion 22B of the wall body 20B, and the other end is connected to the fuel tank 10B. A plurality of tank support members 25B and 26B are arranged at intervals in the horizontal direction and the ship height direction Dv, respectively.
　壁体２０Ａの第二壁部２２Ａと、壁体２０Ｂの第二壁部２２Ｂとの間には、脱出ボート４０が配置されている。脱出ボート４０は、上甲板５における上部構造７の船尾２ｂ側に設けられている。第二壁部２２Ａは、燃料タンク１０Ａと脱出ボート４０との間を仕切っている。第二壁部２２Ｂは、燃料タンク１０Ｂと脱出ボート４０との間を仕切っている。燃料タンク１０Ａ，１０Ｂから見て、第二壁部２２Ａ，２２Ｂは、脱出ボート４０を覆っている。 An escape boat 40 is arranged between the second wall 22A of the wall 20A and the second wall 22B of the wall 20B. The escape boat 40 is provided on the stern 2b side of the upper structure 7 on the upper deck 5. The second wall portion 22A partitions the fuel tank 10A and the escape boat 40. The second wall portion 22B partitions the fuel tank 10B and the escape boat 40. The second wall portions 22A, 22B cover the escape boat 40 when viewed from the fuel tanks 10A, 10B.
　上甲板５における上部構造７の船尾２ｂ側には、ベントポスト３５が配置されている。ベントポスト３５は、区画Ｓ２～Ｓ６の貨物区画に搭載されたカーゴタンクのベントガス等を大気中に排出可能とされている。また、ベントポスト３５は、燃料タンク１０Ａ，１０Ｂ、及び区画Ｓ１の一部の区画内のベントガス等を、待機中に大気中に排出可能とする。本実施形態において、ベントポスト３５は、例えば、壁体２０Ｂの第一壁部２１Ａに対して船尾２ｂ側に配置されている。 A vent post 35 is arranged on the stern 2b side of the upper structure 7 on the upper deck 5. The vent post 35 is capable of discharging vent gas and the like from the cargo tanks mounted in the cargo compartments S2 to S6 into the atmosphere. Further, the vent post 35 allows vent gas and the like in the fuel tanks 10A, 10B and some sections of the section S1 to be discharged into the atmosphere during standby. In this embodiment, the vent post 35 is arranged, for example, on the stern 2b side with respect to the first wall portion 21A of the wall body 20B.
（作用効果）
　上記実施形態の船舶１Ａでは、燃料タンク１０Ａ，１０Ｂが、船高さ方向Ｄｖを長手方向として延びている。これにより、上甲板５上における燃料タンク１０Ａ，１０Ｂによる占有面積を抑えつつ、燃料タンク１０Ａ，１０Ｂの容量を増大させることができる。また、燃料タンク１０Ａ，１０Ｂは、船幅方向Ｄｗに延びている構成ではないため、燃料タンク１０Ａ，１０Ｂに貯留される燃料が、船体２とともに揺れるスロッシングも生じにくい。さらに、燃料タンク１０Ａ，１０Ｂが、上部構造７の船尾２ｂ側に設けられている。これにより、万が一、船舶１Ａの航行中に、燃料タンク１０Ａ，１０Ｂ内に貯留される燃料が漏れた場合であっても、燃料は、船体２の進行方向と反対側の、船首尾方向ＦＡにおける船尾２ｂ側に流れる。したがって、漏れた燃料が、燃料タンク１０Ａ，１０Ｂに対して船首尾方向ＦＡにおける船首２ａ側に位置する上部構造７に及ぶことが抑えられる。その結果、上甲板５上の限られたスペースで、燃料タンク１０Ａ，１０Ｂの容量を効率良く増大させることが可能となる。 (effect)
In the ship 1A of the above embodiment, the fuel tanks 10A and 10B extend in the ship height direction Dv as a longitudinal direction. Thereby, the capacity of the fuel tanks 10A, 10B can be increased while suppressing the area occupied by the fuel tanks 10A, 10B on the upper deck 5. Furthermore, since the fuel tanks 10A and 10B are not configured to extend in the ship width direction Dw, sloshing, in which the fuel stored in the fuel tanks 10A and 10B shakes with the hull 2, is less likely to occur. Furthermore, fuel tanks 10A and 10B are provided on the stern 2b side of the upper structure 7. As a result, even if the fuel stored in the fuel tanks 10A and 10B leaks while the ship 1A is sailing, the fuel will be stored in the fore and aft direction FA on the opposite side of the traveling direction of the ship 2. It flows towards the stern 2b side. Therefore, leaked fuel is prevented from reaching the upper structure 7 located on the bow 2a side in the bow and aft direction FA with respect to the fuel tanks 10A and 10B. As a result, it becomes possible to efficiently increase the capacity of the fuel tanks 10A and 10B in the limited space on the upper deck 5.
　また、壁体２０Ａ，２０Ｂの第一壁部２１Ａ，２１Ｂが、燃料タンク１０Ａ，１０Ｂと上部構造７との間を仕切ることで、万が一燃料タンク１０Ａ，１０Ｂに貯留される燃料が漏れた場合であっても、燃料が上部構造７に及ぶことを、より効果的に抑えることができる。また、この壁体２０Ａ，２０Ｂは、上部構造７に対する防火区画とすることもできる。したがって、壁体２０Ａ，２０Ｂを設けることで、燃料タンク１０Ａ，１０Ｂと上部構造７との船首尾方向ＦＡに置ける間隔を狭めることができ、上甲板５上の限られたスペースを有効利用することができる。 In addition, the first walls 21A, 21B of the walls 20A, 20B partition the fuel tanks 10A, 10B and the upper structure 7, so that even if the fuel stored in the fuel tanks 10A, 10B leaks, Even if there is, it is possible to more effectively prevent fuel from reaching the upper structure 7. Further, the walls 20A and 20B can also be used as fireproof sections for the upper structure 7. Therefore, by providing the walls 20A and 20B, the distance between the fuel tanks 10A and 10B and the superstructure 7 in the bow and stern direction FA can be reduced, and the limited space on the upper deck 5 can be used effectively. Can be done.
　また、脱出ボート４０と燃料タンク１０Ａ，１０Ｂとの間に、壁体２０Ａ，２０Ｂの第二壁部２２Ａ，２２Ｂを配置することで、万が一燃料タンク１０Ａ，１０Ｂ内に貯留される燃料が漏れた場合であっても、燃料が、脱出ボート４０に及ぶことが抑えられる。 In addition, by arranging the second walls 22A, 22B of the walls 20A, 20B between the escape boat 40 and the fuel tanks 10A, 10B, the fuel stored in the fuel tanks 10A, 10B can be prevented from leaking. Even in such a case, fuel is prevented from reaching the escape boat 40.
　また、一端が燃料タンク１０Ａ，１０Ｂに接続され、他端が壁体２０Ａ，２０Ｂに接続されるタンク支持部材２５Ａ，２５Ｂ，２６Ａ，２６Ｂを備えることで、燃料タンク１０Ａ，１０Ｂが、タンク支持部材２５Ａ，２５Ｂ，２６Ａ，２６Ｂを介して壁体２０Ａ，２０Ｂに強固に支持される。これにより、船高さ方向Ｄｖを長手方向とする燃料タンク１０Ａ，１０Ｂを、強固、かつ安定して支持することができる。 Moreover, by providing tank support members 25A, 25B, 26A, 26B whose one end is connected to the fuel tanks 10A, 10B and whose other end is connected to the walls 20A, 20B, the fuel tanks 10A, 10B can be It is firmly supported by the walls 20A, 20B via 25A, 25B, 26A, 26B. Thereby, the fuel tanks 10A and 10B whose longitudinal direction is the ship height direction Dv can be supported firmly and stably.
　また、壁体２０Ａ，２０Ｂを、燃料タンク１０Ａ，１０Ｂの高さと同じ高さ以上に形成することで、万が一燃料タンク１０Ａ，１０Ｂに貯留される燃料が漏れた場合であっても、燃料が上部構造７に及ぶことを、より効果的に抑えることができる。 Furthermore, by forming the walls 20A, 20B to be at least the same height as the fuel tanks 10A, 10B, even if the fuel stored in the fuel tanks 10A, 10B leaks, the fuel will not flow upward. This can be more effectively suppressed from affecting the structure 7.
　また、燃料タンク１０Ａ，１０Ｂを、船幅方向Ｄｗに複数備えることで、上甲板５上の限られたスペースで、燃料タンク１０Ａ，１０Ｂの容量を効率良く増大させることが可能となる。 Furthermore, by providing a plurality of fuel tanks 10A, 10B in the ship width direction Dw, it is possible to efficiently increase the capacity of the fuel tanks 10A, 10B in a limited space on the upper deck 5.
　また、ベントポスト３５が、壁体２０Ｂの船尾２ｂ側に配置されることで、ベントポスト３５から排出される排ガスが、上部構造７側に及ぶのを抑えることができる。 Furthermore, by disposing the vent post 35 on the stern 2b side of the wall 20B, exhaust gas discharged from the vent post 35 can be suppressed from reaching the upper structure 7 side.
＜第二実施形態＞
　次に、本開示に係る船舶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、第一実施形態と船舶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。
　図４、図５に示すように、この実施形態の船舶１Ｂは、船体２Ｂと、上部構造７と、燃料タンク１０Ａ，１０Ｂと、壁体２０Ｃ，２０Ｄと、を主に備えている。 <Second embodiment>
Next, a second embodiment of the ship according to the present disclosure will be described. In the second embodiment described below, only the configuration of the ship is different from the first embodiment, so the same parts as in the first embodiment will be described with the same reference numerals, and redundant explanation will be omitted.
As shown in FIGS. 4 and 5, the ship 1B of this embodiment mainly includes a hull 2B, an upper structure 7, fuel tanks 10A, 10B, and walls 20C, 20D.
　本実施形態における船体２Ｂの上甲板５は、船首２ａ側に第一上甲板５Ａを有し、船尾２ｂ側に第二上甲板５Ｂを有している。上甲板５の船尾２ｂ側に形成された第二上甲板５Ｂは、船首２ａ側の第一上甲板５Ａよりも低い位置に形成されている。第一上甲板５Ａは、第二上甲板５Ｂよりも船首尾方向ＦＡの船首２ａ側に形成され、上部構造７、エンジンケーシング３０等が設けられている。第二上甲板５Ｂは、第一上甲板５Ａに対して船首尾方向ＦＡの船首２ａ側に配置されている。 The upper deck 5 of the hull 2B in this embodiment has a first upper deck 5A on the bow 2a side and a second upper deck 5B on the stern 2b side. The second upper deck 5B formed on the stern 2b side of the upper deck 5 is formed at a lower position than the first upper deck 5A on the bow 2a side. The first upper deck 5A is formed closer to the bow 2a in the bow and aft direction FA than the second upper deck 5B, and is provided with an upper structure 7, an engine casing 30, and the like. The second upper deck 5B is arranged on the bow 2a side in the bow and aft direction FA with respect to the first upper deck 5A.
　燃料タンク１０Ａ，１０Ｂ、及び壁体２０Ｃ，２０Ｄは、第二上甲板５Ｂ上に配置されている。燃料タンク１０Ａ，１０Ｂは、上記第一実施形態と同様、船幅方向Ｄｗに間隔をあけて配置されている。燃料タンク１０Ａ，１０Ｂは、それぞれ、船高さ方向Ｄｖを長手方向として延びている。 The fuel tanks 10A, 10B and the walls 20C, 20D are arranged on the second upper deck 5B. The fuel tanks 10A and 10B are arranged at intervals in the ship width direction Dw, as in the first embodiment. The fuel tanks 10A and 10B each extend in the ship height direction Dv as a longitudinal direction.
　壁体２０Ｃ，２０Ｄは、上部構造７、及びエンジンケーシング３０に対して船首尾方向ＦＡの船尾２ｂ側に配置されている。壁体２０Ｃ，２０Ｄは、燃料タンク１０Ａ，１０Ｂのそれぞれに対応して配置されている。壁体２０Ｃは、燃料タンク１０Ａに対応して配置されている。壁体２０Ｄは、燃料タンク１０Ｂに対応して配置されている。 The walls 20C and 20D are arranged on the stern 2b side in the bow-stern direction FA with respect to the upper structure 7 and the engine casing 30. The walls 20C and 20D are arranged corresponding to the fuel tanks 10A and 10B, respectively. The wall body 20C is arranged corresponding to the fuel tank 10A. The wall body 20D is arranged corresponding to the fuel tank 10B.
　壁体２０Ｃ，２０Ｄは、鋼製で、上甲板５の一部である第二上甲板５Ｂから上方に向かって延びている。壁体２０Ｃ，２０Ｄは、燃料タンク１０Ａ，１０Ｂの高さと、同じ高さ以上とするのが好ましい。壁体２０Ｃ，２０Ｄは、上記第一実施形態の壁体２０Ａ，２０Ｂと同様、それぞれ、平面視Ｌ字状をなし、第一壁部２１Ａ，２１Ｂと、第二壁部２２Ａ，２２Ｂと、を有している。 The walls 20C and 20D are made of steel and extend upward from the second upper deck 5B, which is a part of the upper deck 5. It is preferable that the walls 20C and 20D have the same height or more as the height of the fuel tanks 10A and 10B. Like the walls 20A and 20B of the first embodiment, the walls 20C and 20D each have an L-shape in plan view, and have first wall portions 21A and 21B and second wall portions 22A and 22B. have.
　壁体２０Ｃの第二壁部２２Ａと、壁体２０Ｄの第二壁部２２Ｂとの間には、脱出ボート４０が配置されている。脱出ボート４０は、上甲板５の一部である第二上甲板５Ｂ上に配置されている。
　また、ベントポスト３５は、壁体２０Ｄの第一壁部２１Ｂに対して船尾２ｂ側に配置されている。ベントポスト３５は、その高さを所定以上に設定する必要があることから、第一壁部２１Ｂに対して船尾２ｂ側に延びた第一上甲板５Ａ上に配置されている。 An escape boat 40 is arranged between the second wall 22A of the wall 20C and the second wall 22B of the wall 20D. The escape boat 40 is arranged on the second upper deck 5B, which is a part of the upper deck 5.
Further, the vent post 35 is arranged on the stern 2b side with respect to the first wall portion 21B of the wall body 20D. The vent post 35 is arranged on the first upper deck 5A extending toward the stern 2b side with respect to the first wall portion 21B because it is necessary to set its height to a predetermined height or more.
（作用効果）
　上記実施形態の船舶１Ｂでは、燃料タンク１０Ａ，１０Ｂを、上部構造７を支持する第一上甲板５Ａよりも低い位置に形成された第二上甲板５Ｂ上に配置することで、燃料タンク１０Ａ，１０Ｂ、及び壁体２０Ａ，２０Ｂの設置高さが低くなる。これにより、船体２の重心位置を下げることができ、船体２の復原性向上に寄与することができる。
　また、上記第一実施形態と同様、燃料タンク１０Ａ，１０Ｂが、船高さ方向Ｄｖを長手方向として延びているので、上甲板５上の限られたスペースで、燃料タンク１０Ａ，１０Ｂの容量を効率良く増大させることが可能となる。 (effect)
In the ship 1B of the above embodiment, the fuel tanks 10A, 10B are arranged on the second upper deck 5B, which is formed at a lower position than the first upper deck 5A that supports the upper structure 7, so that the fuel tanks 10A, 10B and the installation heights of walls 20A and 20B are reduced. Thereby, the center of gravity of the hull 2 can be lowered, which can contribute to improving the stability of the hull 2.
Further, as in the first embodiment, the fuel tanks 10A and 10B extend with the ship height direction Dv as the longitudinal direction, so that the capacity of the fuel tanks 10A and 10B can be reduced in the limited space on the upper deck 5. It becomes possible to increase the amount efficiently.
　また、壁体２０Ｃ，２０Ｄの第一壁部２１Ａ，２１Ｂが、燃料タンク１０Ａ，１０Ｂと上部構造７との間を仕切ることで、万が一燃料タンク１０Ａ，１０Ｂに貯留される燃料が漏れた場合であっても、燃料が上部構造７に及ぶことを、より効果的に抑えることができる。また、この壁体２０Ｃ，２０Ｄは、上部構造７に対する防火区画とすることもできる。したがって、壁体２０Ｃ，２０Ｄを設けることで、燃料タンク１０Ａ，１０Ｂと上部構造７との船首尾方向ＦＡに置ける間隔を狭めることができ、上甲板５上の限られたスペースを有効利用することができる。 In addition, the first walls 21A, 21B of the walls 20C, 20D partition the fuel tanks 10A, 10B and the upper structure 7, so that even if the fuel stored in the fuel tanks 10A, 10B leaks, Even if there is, it is possible to more effectively prevent fuel from reaching the upper structure 7. Further, the walls 20C and 20D can also be used as fireproof sections for the upper structure 7. Therefore, by providing the walls 20C and 20D, the distance between the fuel tanks 10A and 10B and the superstructure 7 in the bow and stern direction FA can be reduced, and the limited space on the upper deck 5 can be used effectively. I can do it.
（実施形態の変形例）
　上記各実施形態では、二つの燃料タンク１０Ａ，１０Ｂを、壁体２０Ａ，２０Ｃと、壁体２０Ｂ，２０Ｄとで個別に囲うようにしたがこれに限られない。
　例えば、図６に示す実施形態の変形例のように、船舶１Ｃにおいて、二つの燃料タンク１０Ｅ，１０Ｆを、一つの壁体２０Ｅで囲うようにしてもよい。この実施形態の変形例では、二つの燃料タンク１０Ｅ，１０Ｆは、船幅方向Ｄｗに間隔をあけて配置されている。さらに、この実施形態の変形例の燃料タンク１０Ｅ，１０Ｆは、船幅方向Ｄｗの他方側に偏って配置されている。船幅方向Ｄｗの一方側に燃料タンク１０Ｅが配置され、船幅方向Ｄｗの他方側に燃料タンク１０Ｆが配置されている。そして、燃料タンク１０Ｅよりも船幅方向Ｄｗの一方側に脱出ボート４０が配置されている。 (Modified example of embodiment)
In each of the above embodiments, the two fuel tanks 10A, 10B are individually surrounded by the walls 20A, 20C and the walls 20B, 20D, but the invention is not limited to this.
For example, as in a modification of the embodiment shown in FIG. 6, the two fuel tanks 10E and 10F may be surrounded by one wall 20E in the ship 1C. In a modification of this embodiment, the two fuel tanks 10E and 10F are arranged at intervals in the ship width direction Dw. Furthermore, the fuel tanks 10E and 10F of the modified example of this embodiment are arranged biased toward the other side in the ship width direction Dw. A fuel tank 10E is arranged on one side in the ship width direction Dw, and a fuel tank 10F is arranged on the other side in the ship width direction Dw. The escape boat 40 is disposed on one side of the fuel tank 10E in the ship width direction Dw.
　壁体２０Ｅは、上部構造７、及びエンジンケーシング３０に対して船首尾方向ＦＡの船尾２ｂ側に配置されている。壁体２０Ｅは、鋼製で、上甲板５から上方に向かって延びている。壁体２０Ｅは、燃料タンク１０Ｅ，１０Ｆの高さ（寸法Ｈ；図１参照）と、同じ高さ以上とするのが好ましい。壁体２０Ｅは、平面視するとＬ字状で、第一壁部２１Ｅと、第二壁部２２Ｅと、を有している。 The wall body 20E is arranged on the stern 2b side in the bow-stern direction FA with respect to the upper structure 7 and the engine casing 30. The wall 20E is made of steel and extends upward from the upper deck 5. It is preferable that the wall 20E has the same height or more as the height (dimension H; see FIG. 1) of the fuel tanks 10E, 10F. The wall body 20E has an L-shape when viewed from above, and includes a first wall portion 21E and a second wall portion 22E.
　第一壁部２１Ｅは、燃料タンク１０Ｅ，１０Ｆと、上部構造７との間に配置されている。第一壁部２１Ｅは、他方の舷側３Ｂから船幅方向Ｄｗの内側に向けて延びている。第二壁部２２Ｅは、第一壁部２１Ｅの船幅方向Ｄｗの中央側の端部から、船首尾方向ＦＡの船尾２ｂまで延びている。第一壁部２１Ｅは、燃料タンク１０Ｅ，１０Ｆと、上部構造７との間を仕切っている。第一壁部２１Ｅは、燃料タンク１０Ｅ，１０Ｆから見て、上部構造７を覆うように配置されている。 The first wall portion 21E is arranged between the fuel tanks 10E, 10F and the upper structure 7. The first wall portion 21E extends inward in the ship width direction Dw from the other side 3B. The second wall portion 22E extends from the center end of the first wall portion 21E in the ship width direction Dw to the stern 2b in the bow and aft direction FA. The first wall portion 21E partitions the fuel tanks 10E, 10F and the upper structure 7. The first wall portion 21E is arranged to cover the upper structure 7 when viewed from the fuel tanks 10E and 10F.
　壁体２０Ｅと、燃料タンク１０Ｅとは、タンク支持部材２５Ｅ，２６Ｅ，２７Ｅにより接続されている。タンク支持部材２５Ｅ，２６Ｅ，２７Ｅは、それぞれ、水平方向、及び船高さ方向Ｄｖに間隔をあけて複数本配置されている。タンク支持部材２５Ｅの一端は、第一壁部２１Ｅに接続されており、タンク支持部材２５Ｅの他端は、燃料タンク１０Ｅ，１０Ｆに接続されている。タンク支持部材２６Ｅの一端は、第二壁部２２Ｅに接続されており、タンク支持部材２６Ｅの他端は、燃料タンク１０Ｅに接続されている。タンク支持部材２７Ｅの一端は、燃料タンク１０Ｅに接続されており、タンク支持部材２７Ｅの他端は、燃料タンク１０Ｆに接続されている。 The wall 20E and the fuel tank 10E are connected by tank support members 25E, 26E, and 27E. A plurality of tank support members 25E, 26E, and 27E are arranged at intervals in the horizontal direction and the ship height direction Dv, respectively. One end of the tank support member 25E is connected to the first wall portion 21E, and the other end of the tank support member 25E is connected to the fuel tanks 10E, 10F. One end of the tank support member 26E is connected to the second wall portion 22E, and the other end of the tank support member 26E is connected to the fuel tank 10E. One end of the tank support member 27E is connected to the fuel tank 10E, and the other end of the tank support member 27E is connected to the fuel tank 10F.
　壁体２０Ｅの第二壁部２２Ｅの船幅方向Ｄｗの一方側には、脱出ボート４０が配置されている。つまり、燃料タンク１０Ｆと、燃料タンク１０Ｅと、第二壁部２２Ｅと、脱出ボート４０とが、船幅方向Ｄｗに並んで配置されている。第二壁部２２Ｅは、燃料タンク１０Ｅと脱出ボート４０との間を仕切っている。燃料タンク１０Ｅ側から見て、第二壁部２２Ｅは、脱出ボート４０を覆っている。 An escape boat 40 is arranged on one side of the second wall portion 22E of the wall body 20E in the ship width direction Dw. That is, the fuel tank 10F, the fuel tank 10E, the second wall portion 22E, and the escape boat 40 are arranged side by side in the ship width direction Dw. The second wall portion 22E partitions the fuel tank 10E and the escape boat 40. The second wall portion 22E covers the escape boat 40 when viewed from the fuel tank 10E side.
　このような構成においても、燃料タンク１０Ｅ，１０Ｆが、船高さ方向Ｄｖを長手方向として延びているので、燃料タンク１０Ｅ，１０Ｆの容量を増大させることができる。
　また、壁体２０Ｅの第一壁部２１Ｅが、燃料タンク１０Ｅ，１０Ｆと上部構造７との間を仕切ることで、万が一燃料タンク１０Ｅ，１０Ｆに貯留される燃料が漏れた場合であっても、燃料が上部構造７に及ぶことを、より効果的に抑えることができる。
　また、脱出ボート４０と燃料タンク１０Ｅ，１０Ｆとの間に、壁体２０Ｅの第二壁部２２Ｅを配置することで、万が一燃料タンク１０Ｅ，１０Ｆ内に貯留される燃料が漏れた場合であっても、燃料が、脱出ボート４０に及ぶことが抑えられる。 Even in such a configuration, since the fuel tanks 10E, 10F extend with the ship height direction Dv as the longitudinal direction, the capacity of the fuel tanks 10E, 10F can be increased.
Furthermore, since the first wall portion 21E of the wall body 20E partitions between the fuel tanks 10E, 10F and the upper structure 7, even if the fuel stored in the fuel tanks 10E, 10F leaks, It is possible to more effectively prevent fuel from reaching the upper structure 7.
Furthermore, by arranging the second wall portion 22E of the wall body 20E between the escape boat 40 and the fuel tanks 10E, 10F, even if the fuel stored in the fuel tanks 10E, 10F leaks, Also, fuel is prevented from reaching the escape boat 40.
（その他の実施形態）
　以上、本開示の実施の形態について図面を参照して詳述したが、具体的な構成はこの実施の形態に限られるものではなく、本開示の要旨を逸脱しない範囲の設計変更等も含まれる。
　上記実施形態では、二つの燃料タンク１０Ａと燃料タンク１０Ｂ、燃料タンク１０Ｅと燃料タンク１０Ｆを備えるようにしたが、燃料タンクは、一つのみであってもよいし、３つ以上を備えていてもよい。さらに、複数の燃料タンクは、船幅方向Ｄｗに限らず、船首尾方向ＦＡに並べて配置するようにしてもよい。 (Other embodiments)
Although the embodiment of the present disclosure has been described above in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and includes design changes within the scope of the gist of the present disclosure. .
In the above embodiment, the two fuel tanks 10A and 10B, and the fuel tank 10E and 10F are provided, but the number of fuel tanks may be only one, or three or more may be provided. Good too. Furthermore, the plurality of fuel tanks may be arranged not only in the transverse direction Dw but also in the bow and aft direction FA.
　また、上記実施形態では、壁体２０Ａ～２０Ｅを、平面視Ｌ字状としたが、燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆと、上部構造７、脱出ボート４０、脱出ボート４０までの避難経路等とを区切る目的が達成できるのであれば、壁体２０Ａ～２０Ｅの平面形状については何ら限定するものではない。例えば、壁体２０Ａにおける第一壁部２１Ａと第二壁部２２Ａとが交差する角部を、平面視で斜めに面取りしたような形状としてもよい。他の壁体２０Ｂ～２０Ｅにおいても同様である。これ以外にも、壁体２０Ａ～２０Ｅを、平面視円弧状としてもよいし、他のいかなる平面形状としてもよい。
　また、上記実施形態では、壁体２０Ａ～２０Ｅを、上甲板５から上方に延びるようにしたが、例えば、壁体２０Ａ～２０Ｅは、上甲板５から斜め上方に延びるようにしてもよい。 In the above embodiment, the walls 20A to 20E are L-shaped in plan view, but the fuel tanks 10A, 10B, 10E, 10F, the upper structure 7, the escape boat 40, the evacuation route to the escape boat 40, etc. There are no limitations on the planar shapes of the walls 20A to 20E, as long as the purpose of separating them can be achieved. For example, the corner portion of the wall body 20A where the first wall portion 21A and the second wall portion 22A intersect may have a shape that is obliquely chamfered in plan view. The same applies to the other wall bodies 20B to 20E. In addition to this, the walls 20A to 20E may have an arcuate shape in plan view, or may have any other planar shape.
Further, in the above embodiment, the walls 20A to 20E extend upward from the upper deck 5, but the walls 20A to 20E may extend obliquely upward from the upper deck 5, for example.
　また、上記実施形態において、ベントポスト３５を、壁体２０Ｂ，２０Ｄ，２０Ｅに対して燃料タンク１０Ｂ，１０Ｆ側に配置するようにしたが、ベントポスト３５は適宜他の位置に変更可能である。 Furthermore, in the above embodiment, the vent post 35 is arranged on the fuel tanks 10B, 10F side with respect to the walls 20B, 20D, 20E, but the vent post 35 can be moved to other positions as appropriate.
＜付記＞
　各実施形態に記載の船舶１Ａ，１Ｂ，１Ｃは、例えば以下のように把握される。 <Additional notes>
The ships 1A, 1B, and 1C described in each embodiment are understood as follows, for example.
（１）第１の態様に係る船舶１Ａ，１Ｂ，１Ｃは、上甲板５を有する船体２と、前記上甲板５からさらに上方に向かって延び、居住区を有する上部構造７と、前記上甲板５における前記上部構造７の船尾２ｂ側に設けられて、船高さ方向Ｄｖを長手方向として延びる燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆと、を備える。 (1) Ships 1A, 1B, and 1C according to the first aspect include a hull 2 having an upper deck 5, an upper structure 7 extending further upward from the upper deck 5 and having a living area, and the upper deck Fuel tanks 10A, 10B, 10E, and 10F are provided on the stern 2b side of the upper structure 7 in No. 5 and extend with the ship height direction Dv as the longitudinal direction.
　これにより、上甲板５上における燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆによる占有面積を抑えつつ、燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆの容量を増大させることができる。また、燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆに貯留される燃料が、船体２とともに揺れるスロッシングも生じにくい。さらに、燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆが、上部構造７の船尾２ｂ側に設けられることで、万が一燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆ内に貯留される燃料が漏れた場合であっても、燃料は、船体２の進行方向と反対側の、船首尾方向ＦＡにおける船尾２ｂ側に流れる。これにより、漏れた燃料が、燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆに対して船首尾方向ＦＡにおける船首側に位置する上部構造７に及ぶことが抑えられる。その結果、上甲板５上の限られたスペースで、燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆの容量を効率良く増大させることが可能となる。 Thereby, the capacity of the fuel tanks 10A, 10B, 10E, 10F can be increased while suppressing the area occupied by the fuel tanks 10A, 10B, 10E, 10F on the upper deck 5. In addition, sloshing, in which the fuel stored in the fuel tanks 10A, 10B, 10E, and 10F shakes with the hull 2, is less likely to occur. Furthermore, since the fuel tanks 10A, 10B, 10E, and 10F are provided on the stern 2b side of the superstructure 7, even if the fuel stored in the fuel tanks 10A, 10B, 10E, and 10F leaks, , the fuel flows to the stern 2b side in the bow-stern direction FA, which is the opposite side to the traveling direction of the hull 2. This prevents leaked fuel from reaching the upper structure 7 located on the bow side in the bow and aft direction FA with respect to the fuel tanks 10A, 10B, 10E, and 10F. As a result, the capacity of the fuel tanks 10A, 10B, 10E, and 10F can be efficiently increased in the limited space on the upper deck 5.
（２）第２の態様に係る船舶１Ａ，１Ｂ，１Ｃは、（１）の船舶１Ａ，１Ｂ，１Ｃであって、前記上甲板５から上方に向かって延び、前記燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆと前記上部構造７との間を仕切る第一壁部２１Ａ，２１Ｂ，２１Ｅを有する壁体２０Ａ～２０Ｅを備える。 (2) The ships 1A, 1B, 1C according to the second aspect are the ships 1A, 1B, 1C of (1), which extend upward from the upper deck 5, and have the fuel tanks 10A, 10B, 10E. , 10F and the upper structure 7 are provided with walls 20A to 20E having first wall portions 21A, 21B, and 21E.
　これにより、壁体２０Ａ～２０Ｅの第一壁部２１Ａ，２１Ｂ，２１Ｅが、燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆと上部構造７との間を仕切ることで、万が一燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆに貯留される燃料が漏れた場合であっても、燃料が上部構造７に及ぶことを、より効果的に抑えることができる。また、この壁体２０Ａ～２０Ｅは、上部構造７に対する防火区画とすることもできる。したがって、壁体２０Ａ～２０Ｅを設けることで、燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆと上部構造７との船首尾方向ＦＡに置ける間隔を狭めることができ、上甲板５上の限られたスペースを有効利用することができる。 As a result, the first walls 21A, 21B, 21E of the walls 20A to 20E partition the fuel tanks 10A, 10B, 10E, 10F and the upper structure 7, so that in the unlikely event that the fuel tanks 10A, 10B, 10E, Even if the fuel stored in 10F leaks, it is possible to more effectively prevent the fuel from reaching the upper structure 7. Further, the walls 20A to 20E can also be used as fireproof compartments for the upper structure 7. Therefore, by providing the walls 20A to 20E, it is possible to narrow the distance between the fuel tanks 10A, 10B, 10E, 10F and the superstructure 7 in the bow and stern direction FA, thereby freeing up the limited space on the upper deck 5. It can be used effectively.
（３）第３の態様に係る船舶１Ａ，１Ｂ，１Ｃは、（２）の船舶１Ａ，１Ｂ，１Ｃであって、前記上甲板５における前記上部構造７の船尾２ｂ側に脱出ボート４０をさらに備え、前記壁体２０Ａ～２０Ｅは、前記燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆと前記脱出ボート４０の間を仕切る第二壁部２２Ａ，２２Ｂ，２２Ｅを有する。 (3) The ships 1A, 1B, 1C according to the third aspect are the ships 1A, 1B, 1C according to (2), and further include an escape boat 40 on the stern 2b side of the upper structure 7 on the upper deck 5. The walls 20A to 20E have second wall portions 22A, 22B, and 22E that partition between the fuel tanks 10A, 10B, 10E, and 10F and the escape boat 40.
　これにより、脱出ボート４０と燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆとの間に、壁体２０Ａ～２０Ｅの第二壁部２２Ａ，２２Ｂ，２２Ｅを配置することで、万が一燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆ内に貯留される燃料が漏れた場合であっても、燃料が、脱出ボート４０に及ぶことが抑えられる。 As a result, by arranging the second wall portions 22A, 22B, 22E of the walls 20A to 20E between the escape boat 40 and the fuel tanks 10A, 10B, 10E, 10F, it is possible to , 10F leaks, the fuel is prevented from reaching the escape boat 40.
（４）第４の態様に係る船舶１Ａ，１Ｂ，１Ｃは、（２）又は（３）の船舶１Ａ，１Ｂ，１Ｃであって、一端が前記燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆに接続され、他端が前記壁体２０Ａ～２０Ｅに接続される、タンク支持部材２５Ａ，２５Ｂ，２５Ｅ，２６Ａ，２６Ｂ，２６Ｅ，２７Ｅをさらに備える。 (4) The ships 1A, 1B, 1C according to the fourth aspect are the ships 1A, 1B, 1C of (2) or (3), and one end is connected to the fuel tank 10A, 10B, 10E, 10F. , tank support members 25A, 25B, 25E, 26A, 26B, 26E, and 27E, the other ends of which are connected to the walls 20A to 20E.
　これにより、一端が燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆに接続され、他端が壁体２０Ａ～２０Ｅに接続されるタンク支持部材２５Ａ，２５Ｂ，２５Ｅ，２６Ａ，２６Ｂ，２６Ｅ，２７Ｅを備えることで、燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆが、タンク支持部材２５Ａ，２５Ｂ，２５Ｅ，２６Ａ，２６Ｂ，２６Ｅ，２７Ｅを介して壁体２０Ａ～２０Ｅに支持される。これにより、船高さ方向Ｄｖを長手方向とする燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆを、安定して支持することができる。 As a result, tank support members 25A, 25B, 25E, 26A, 26B, 26E, 27E are provided, one end of which is connected to the fuel tanks 10A, 10B, 10E, 10F, and the other end of which is connected to the walls 20A to 20E. , fuel tanks 10A, 10B, 10E, and 10F are supported by walls 20A to 20E via tank support members 25A, 25B, 25E, 26A, 26B, 26E, and 27E. Thereby, the fuel tanks 10A, 10B, 10E, and 10F whose longitudinal direction is the ship height direction Dv can be stably supported.
（５）第５の態様に係る船舶１Ａ，１Ｂ，１Ｃは、（２）又は（３）の船舶１Ａ，１Ｂ，１Ｃであって、前記壁体２０Ａ～２０Ｅは、前記燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆの高さと同じ高さ以上に形成される。 (5) The ships 1A, 1B, 1C according to the fifth aspect are the ships 1A, 1B, 1C of (2) or (3), and the walls 20A to 20E are the fuel tanks 10A, 10B, It is formed to have the same height or more as the height of 10E and 10F.
　これにより、壁体２０Ａ～２０Ｅを、燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆの高さと同じ高さ以上に形成することで、万が一燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆに貯留される燃料が漏れた場合であっても、燃料が上部構造７に及ぶことを、より効果的に抑えることができる。 As a result, by forming the walls 20A to 20E to be at least the same height as the fuel tanks 10A, 10B, 10E, and 10F, fuel stored in the fuel tanks 10A, 10B, 10E, and 10F can be prevented from leaking. Even in such a case, it is possible to more effectively prevent fuel from reaching the upper structure 7.
（６）第６の態様に係る船舶１Ａ，１Ｂ，１Ｃは、（２）又は（３）の船舶１Ａ，１Ｂ，１Ｃであって、前記燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆは、前記船体２の船幅方向Ｄｗに間隔をあけて複数配置される。 (6) The ships 1A, 1B, 1C according to the sixth aspect are the ships 1A, 1B, 1C of (2) or (3), and the fuel tanks 10A, 10B, 10E, 10F are the ships 1A, 1B, 1C according to the hull 2. A plurality of them are arranged at intervals in the ship width direction Dw.
　これにより、燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆを、船幅方向Ｄｗに複数備えることで、上甲板５上の限られたスペースで、燃料タンク１０Ａ，１０Ｂ，１０Ｅ，１０Ｆの容量を効率良く増大させることが可能となる。 As a result, by providing a plurality of fuel tanks 10A, 10B, 10E, and 10F in the ship width direction Dw, the capacity of the fuel tanks 10A, 10B, 10E, and 10F can be efficiently increased in the limited space on the upper deck 5. It becomes possible to do so.
（７）第７の態様に係る船舶１Ｂは、（２）又は（３）の船舶１Ｂであって、前記上甲板５は、前記上部構造７の下方に位置する第一上甲板５Ａと、前記船体２の船尾２ｂ側の少なくとも一部に形成され、前記第一上甲板５Ａよりも低い位置に形成された第二上甲板５Ｂと、を備え、前記燃料タンク１０Ａ，１０Ｂ、及び前記壁体２０Ｃ，２０Ｄは、前記第二上甲板５Ｂ上に配置される。 (7) The ship 1B according to the seventh aspect is the ship 1B according to (2) or (3), in which the upper deck 5 includes a first upper deck 5A located below the superstructure 7, and a first upper deck 5A located below the superstructure 7. a second upper deck 5B formed on at least a part of the stern 2b side of the hull 2 and formed at a lower position than the first upper deck 5A, the fuel tanks 10A, 10B, and the wall 20C; , 20D are arranged on the second upper deck 5B.
　これにより、燃料タンク１０Ａ，１０Ｂを、上部構造７を支持する第一上甲板５Ａよりも低い位置に形成された第二上甲板５Ｂ上に配置することで、燃料タンク１０Ａ，１０Ｂ、及び壁体２０Ｃ，２０Ｄの設置高さが低くなる。これにより、船体２の重心位置を下げることができ、船体２の復原性向上に寄与することができる。 Thereby, by arranging the fuel tanks 10A, 10B on the second upper deck 5B formed at a lower position than the first upper deck 5A that supports the upper structure 7, the fuel tanks 10A, 10B and the wall The installation height of 20C and 20D is lower. Thereby, the center of gravity of the hull 2 can be lowered, which can contribute to improving the stability of the hull 2.
（８）第８の態様に係る船舶１Ａ，１Ｂ，１Ｃは、（２）又は（３）の船舶１Ａ，１Ｂ，１Ｃであって、前記船体２内で発生するガスを外部に排出するベントポスト３５をさらに備え、前記ベントポスト３５は、前記壁体２０Ａ～２０Ｅの船尾２ｂ側に配置される。 (8) The ships 1A, 1B, 1C according to the eighth aspect are the ships 1A, 1B, 1C according to (2) or (3), and include a vent post for discharging gas generated within the hull 2 to the outside. 35, and the vent post 35 is arranged on the stern 2b side of the walls 20A to 20E.
　これにより、ベントポスト３５が、壁体２０Ａ～２０Ｅの船尾２ｂ側に配置されることで、ベントポスト３５から排出されるガスが、上部構造７側に及ぶのを抑えることができる。 As a result, the vent post 35 is arranged on the stern 2b side of the walls 20A to 20E, so that gas discharged from the vent post 35 can be prevented from reaching the upper structure 7 side.
　本開示の船舶によれば、上甲板上の限られたスペースで、燃料タンクの容量を効率良く増大させることができる。 According to the ship of the present disclosure, the capacity of the fuel tank can be efficiently increased in a limited space on the upper deck.
１Ａ～１Ｃ…船舶　２，２Ｂ…船体　２ａ…船首　２ｂ…船尾　３Ａ，３Ｂ…舷側　４…船底　５…上甲板　５Ａ…第一上甲板　５Ｂ…第二上甲板　６…底部甲板　７…上部構造　８…スクリュー　１０Ａ，１０Ｂ，１０Ｅ，１０Ｆ…燃料タンク　１０ｂ…下部鏡板部　１０ｍ…タンク本体部　１０ｔ…上部鏡板部　１１…区画壁　１２…支持部材　１５…原動機　２０Ａ～２０Ｅ…壁体　２１Ａ，２１Ｂ，２１Ｅ…第一壁部　２２Ａ，２２Ｂ，２２Ｅ…第二壁部　２５Ａ，２５Ｂ，２５Ｅ，２６Ａ，２６Ｂ，２６Ｅ…タンク支持部材　２７Ｅ…タンク支持部材　３０…エンジンケーシング　３５…ベントポスト　４０…脱出ボート　Ｓ，Ｓ１～Ｓ７…区画 1A to 1C... Vessel 2, 2B... Hull 2a... Bow 2b... Stern 3A, 3B... Broadside 4... Bottom 5... Upper deck 5A... First upper deck 5B... Second upper deck 6... Bottom deck 7... Upper structure 8... Screws 10A, 10B, 10E, 10F...Fuel tank 10b...Lower head plate 10m...Tank body 10t...Upper head plate 11...Dividing wall 12...Supporting member 15...Motor 20A-20E... Wall 21A, 21B, 21E...No. One wall 22A, 22B, 22E... Second wall 25A, 25B, 25E, 26A, 26B, 26E...Tank support member 27E...Tank support member 30...Engine casing 35...Vent post 40...Escape boat S, S1-S7 …section

Claims (8)

  1. 　上甲板を有する船体と、
    　前記上甲板からさらに上方に向かって延び、居住区を有する上部構造と、
    　前記上甲板における前記上部構造の船尾側に設けられて、船高さ方向を長手方向として延びる燃料タンクと、
    を備える船舶。     a hull having an upper deck;
    a superstructure extending further upward from the upper deck and having a living area;
    a fuel tank provided on the stern side of the upper structure on the upper deck and extending in the ship height direction as a longitudinal direction;
    A ship equipped with
  2. 　前記上甲板から上方に向かって延び、前記燃料タンクと前記上部構造との間を仕切る第一壁部を有する壁体を備える
    　請求項１に記載の船舶。     The ship according to claim 1, further comprising a wall body that extends upward from the upper deck and has a first wall portion that partitions between the fuel tank and the upper structure.
  3. 　前記上甲板における前記上部構造の船尾側に脱出ボートをさらに備え、
    　前記壁体は、前記燃料タンクと前記脱出ボートの間を仕切る第二壁部を有する
    　請求項２に記載の船舶。     further comprising an escape boat on the stern side of the superstructure on the upper deck;
    The ship according to claim 2, wherein the wall has a second wall that partitions between the fuel tank and the escape boat.
  4. 　一端が前記燃料タンクに接続され、他端が前記壁体に接続される、タンク支持部材をさらに備える
    　請求項２又は３に記載の船舶。     The ship according to claim 2 or 3, further comprising a tank support member having one end connected to the fuel tank and the other end connected to the wall.
  5. 　前記壁体は、前記燃料タンクの高さと同じ高さ以上に形成される
    　請求項２又は３に記載の船舶。     The ship according to claim 2 or 3, wherein the wall body is formed to have a height equal to or higher than the height of the fuel tank.
  6. 　前記燃料タンクは、前記船体の船幅方向に間隔をあけて複数配置される
    　請求項２又は３に記載の船舶。     The ship according to claim 2 or 3, wherein a plurality of the fuel tanks are arranged at intervals in the width direction of the ship body.
  7. 　前記上甲板は、
    　前記上部構造の下方に位置する第一上甲板と、
    　前記船体の船尾側の少なくとも一部に形成され、前記第一上甲板よりも低い位置に形成された第二上甲板と、を備え、
    　前記燃料タンク、及び前記壁体は、前記第二上甲板上に配置される
    　請求項２又は３に記載の船舶。     The upper deck is
    a first upper deck located below the superstructure;
    a second upper deck formed on at least a portion of the stern side of the hull and formed at a lower position than the first upper deck,
    The ship according to claim 2 or 3, wherein the fuel tank and the wall are arranged on the second upper deck.
  8. 　前記船体内で発生するガスを外部に排出するベントポストをさらに備え、
    　前記ベントポストは、前記壁体の船尾側に配置される
    　請求項２又は３に記載の船舶。     Further comprising a vent post for discharging gas generated within the hull to the outside,
    The ship according to claim 2 or 3, wherein the vent post is arranged on the stern side of the wall.
PCT/JP2023/014397 2022-04-15 2023-04-07 Marine vessel WO2023199864A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130050820A (en) * 2011-11-08 2013-05-16 삼성중공업 주식회사 Lng propulsion ship
JP2016222110A (en) * 2015-05-29 2016-12-28 株式会社大島造船所 Ship
CN110789663A (en) * 2019-11-13 2020-02-14 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） Liquefied natural gas fuel tank arrangement structure of bulk carrier
KR20210156384A (en) * 2020-06-17 2021-12-27 삼성중공업 주식회사 Handling device for fuel tank

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20130050820A (en) * 2011-11-08 2013-05-16 삼성중공업 주식회사 Lng propulsion ship
JP2016222110A (en) * 2015-05-29 2016-12-28 株式会社大島造船所 Ship
CN110789663A (en) * 2019-11-13 2020-02-14 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） Liquefied natural gas fuel tank arrangement structure of bulk carrier
KR20210156384A (en) * 2020-06-17 2021-12-27 삼성중공업 주식회사 Handling device for fuel tank

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