Ships

Abstract

To inhibit cost increase caused by securing fireproof performance at the side of an upper structure which faces a fuel tank.SOLUTION: A ship includes: a hull having a pair of broadsides and an upper deck; an upper structure extending upward from the upper deck and having an accommodation space; a fuel tank disposed at the broadside side relative to the upper structure on the upper deck; and a partition wall provided between the fuel tank and the upper structure.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to marine vessels. [Background technology]

[0002] Patent Document 1 discloses a vessel equipped with a fuel tank on the upper deck at the stern of the hull. The fuel tank in Patent Document 1 stores liquefied gas that serves as fuel for the main engine, which generates the propulsive force that propels the vessel, and is located on the upper deck aft of the superstructure that contains the accommodation area. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 6966661 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when the liquefied gas stored in the fuel tank is, for example, ammonia, at least the side of the upper structure facing the fuel tank must be designed to meet certain fire prevention requirements. However, achieving a structure that meets these requirements is costly and can be difficult.

[0005] The present disclosure has been made to solve the above-mentioned problem, and aims to provide a ship that can suppress cost increases due to ensuring fire prevention performance on the side of the superstructure facing the fuel tank. [Means for solving the problem]

[0006] In order to solve the above problems, the present disclosure provides a vessel comprising a hull, a superstructure, a fuel tank, and a bulkhead. The hull has a pair of shipboard sides and an upper deck. The superstructure extends further upward from the upper deck and has an accommodation area. The fuel tank is disposed on the upper deck on at least one of the shipboard sides relative to the superstructure. The bulkhead is provided between the fuel tank and the superstructure. The bulkhead includes a first bulkhead portion extending upward from the upper deck and a second bulkhead portion inclined upward from the upper end of the first bulkhead portion toward the fuel tank. Another aspect of the vessel according to the present disclosure comprises a hull having a pair of side walls and an upper deck, a superstructure extending further upward from the upper deck and having accommodation areas, a fuel tank arranged on at least one of the side walls of the upper deck relative to the superstructure, and a bulkhead provided between the fuel tank and the superstructure, the upper edge of which is connected to a portion of the fuel tank. Yet another aspect of the vessel according to the present disclosure comprises a hull having a pair of side walls and an upper deck, a superstructure extending further upward from the upper deck and having accommodation areas, a fuel tank arranged on at least one of the side walls of the superstructure on the upper deck, and a bulkhead provided between the fuel tank and the superstructure, and a passageway extending in the bow-stern direction of the hull is formed between the bulkhead and the superstructure. [Effects of the Invention]

[0007] According to the ship of the present disclosure, it is possible to suppress cost increases caused by ensuring fire prevention performance on the side of the superstructure facing the fuel tank. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a side view of a vessel according to an embodiment of the present disclosure. [Figure 2] FIG. 1 is a plan view of the stern side of a vessel according to an embodiment of the present disclosure. [Figure 3] FIG. 1 is a view of a marine vessel according to an embodiment of the present disclosure as viewed from the stern side. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, a vessel according to an embodiment of the present disclosure will be described with reference to FIGS. 1 to 3. FIG. (Overall configuration of the ship) 1 to 3, the ship 1 of this embodiment mainly comprises a hull 2, a superstructure 7, fuel tanks 10A and 10B, and bulkheads 20A and 20B. The type of ship 1 is not limited to a specific one. Examples of the type of ship 1 include carriers of liquefied gases such as liquefied natural gas (LNG), carbon dioxide, and ammonia.

[0010] The hull 2 ​​has a pair of side walls 3A, 3B, a bottom wall 4, and an upper deck 5 that form its outer hull. The side walls 3A, 3B have a pair of side wall shells that form the port and starboard sides, respectively. The bottom wall 4 has a bottom wall shell that connects the side walls 3A, 3B. The pair of side walls 3A, 3B and the bottom wall 4 give the hull 2 ​​an outer hull U-shape in a cross section perpendicular to the bow-stern direction FA, which is the direction connecting the bow 2a and stern 2b of the hull 2. The hull 2 ​​has multiple deck layers inside, including an upper deck 5 and a bottom deck 6. The upper deck 5 is a full-length deck located on the top layer. The upper deck 5 is exposed to the outside.

[0011] The superstructure 7 is formed on the upper deck 5 closer to the stern 2b of the hull 2. The superstructure 7 has accommodation areas. In this embodiment, the superstructure 7 is illustrated as having an upper structure main body 71 and wing portions 72. In a plan view, the superstructure main body 71 has a rectangular shape with its long side extending in the fore-aft direction FA and its short side extending in the width direction Dw connecting the pair of ship sides 3A, 3B. The wing portions 72 protrude from a bridge (not shown) provided on the upper part of the superstructure main body 71 on both sides in the width direction Dw. The superstructure main body 71 and wing portions 72 form a T-shape when viewed from the fore-aft direction FA.

[0012] An engine casing 30 is disposed on the stern 2b side in the fore-aft direction FA relative to the superstructure 7. The engine casing 30 discharges exhaust gases and the like discharged from the prime mover 15, which will be described later.

[0013] As shown in FIG. 1, a plurality of compartments S are formed inside the hull 2. The plurality of compartments S are arranged in the fore-aft direction FA inside the hull 2. A plurality of compartment walls 11 are formed inside the hull 2 ​​at intervals in the fore-aft direction FA. Between the pair of shipsides 3A, 3B, the space between the bottom deck 6 and the upper deck 5 is divided in the fore-aft direction FA by the plurality of compartment walls 11. The interior of the hull 2 ​​is divided in the fore-aft direction FA by the plurality of compartment walls 11, thereby forming a plurality of compartments S. In this embodiment, seven compartments S1 to S7 are arranged in the fore-aft direction FA as the plurality of compartments S.

[0014] Of the multiple compartments S1 to S7, compartment S1, which is located closest to the stern 2b in the bow-stern direction FA, is designated as an engine room. A prime mover 15 is disposed within compartment S1, which serves as the engine room. The prime mover 15 uses liquefied gas supplied from 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, generates propulsive force to propel the ship 1. The prime mover 15, which serves as the main engine, drives and rotates a screw 8 provided outside the stern 2b of the hull 2. The prime mover 15, which serves as an auxiliary engine, generates power to be used within the ship 1. In this embodiment, the prime mover 15, which serves as an auxiliary engine, is, for example, a generator engine for driving a generator (not shown). The prime mover 15 may be, for example, a steam turbine, a gas turbine, a reciprocating engine, or the like. 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 power energy.

[0015] Of the multiple compartments S1 to S7, the remaining compartments S2 to S6, excluding compartment S1 which serves as an engine room and compartment S7 which is closest to the bow 2a, are so-called cargo compartments that accommodate cargo to be transported by the ship 1. In this embodiment, the cargo compartments of compartments S2 to S6 store liquefied gas as cargo.

[0016] As shown in Figures 1 to 3, the fuel tanks 10A, 10B are provided at the rear of the hull 2. The fuel tanks 10A, 10B are provided on the upper deck 5. The fuel tanks 10A, 10B are arranged in a position overlapping with the superstructure 7 in the fore-aft direction FA. The fuel tanks 10A, 10B are arranged on both sides of the superstructure 7 in the ship's transverse direction Dw. The fuel tank 10A is arranged on the upper deck 5 on one side 3A of the superstructure 7 in the ship's transverse direction Dw. The fuel tank 10B is arranged on the upper deck 5 on the other side 3B of the superstructure 7 in the ship's transverse direction Dw. In this embodiment, the fuel tank 10A arranged on one side in the ship's transverse direction Dw and the fuel tank 10B arranged on the other side in the ship's transverse direction Dw are arranged symmetrically across the center of the hull 2 ​​in the ship's transverse direction Dw.

[0017] Each of the fuel tanks 10A and 10B has a tank body 12, a stand 13, and a tank connection portion 14. The tank body 12 stores liquefied gas, such as ammonia, which serves as fuel for the engine 15. The tank body 12 is a cylindrical container with its longitudinal direction in the fore-aft direction FA. The tank body 12 has a tank intermediate section 12m, a first head section 12a, and a second head section 12b. The tank intermediate section 12m has a constant diameter and extends cylindrically in the fore-aft direction FA. The first head section 12a closes the bow 2a side of the tank intermediate section 12m in the fore-aft direction FA. The first head section 12a is formed in a hemispherical shape with an outer diameter that gradually decreases from the stern 2b side toward the bow 2a side in the fore-aft direction FA. The second head section 12b closes the stern 2b side of the tank intermediate section 12m in the fore-aft direction FA. The second end plate portion 12b is formed in a hemispherical shape with an outer diameter that gradually decreases from the bow 2a side toward the stern 2b side in the fore-aft direction FA.

[0018] A plurality of cradles 13 are provided at intervals in the fore-and-aft direction FA on the upper deck 5. The plurality of cradles 13 support the tank main body 12 from below. When viewed from the fore-and-aft direction FA, the cradles 13 protrude toward the center of the tank main body 12 in the ship's width direction Dw.

[0019] The tank connection part 14 is provided on the tank main body 12. In other words, the tank connection part 14 forms the uppermost part located at the top of the fuel tanks 10A, 10B. The tank connection part 14 accommodates, for example, a connection valve and various meters used when introducing fuel from the outside into the tank main body 12. In this embodiment, the height of the fuel tanks 10A, 10B is lower than the height of the superstructure 7. Note that a staircase (not shown) may be provided between the fuel tanks 10A, 10B and the upper floor of the superstructure 7 to allow workers to access the tank connection part 14 from the superstructure 7.

[0020] As shown in Figures 2 and 3, bulkheads 20A and 20B are arranged on both sides of the superstructure 7 in the ship's width direction Dw. Specifically, bulkhead 20A is arranged on one side of the superstructure 7 in the ship's width direction Dw (in other words, the port side), and bulkhead 20B is arranged on the other side of the superstructure 7 in the ship's width direction Dw (in other words, the starboard side). The height of bulkheads 20A and 20B is preferably equal to or greater than the height of fuel tanks 10A and 10B.

[0021] The bulkhead 20A is provided between the fuel tank 10A and the superstructure 7 in the ship's transverse direction Dw. The bulkhead 20A is located closer to the center in the ship's transverse direction Dw than the fuel tank 10A located on one side in the ship's transverse direction Dw. The bulkhead 20A exemplified in this embodiment is located between the fuel tank 10A located on one side in the ship's transverse direction Dw and the superstructure 7, at a position closer to the fuel tank 10A in the ship's transverse direction Dw than the superstructure 7.

[0022] The bulkhead 20A is formed to cover the surface of the fuel tank 10A facing the superstructure 7 in the ship's width direction Dw (the side facing the superstructure 7). The bulkhead 20A has dimensions that are the same as or larger than those of the fuel tank 10A in both the fore-aft direction FA and the vertical direction Dv so that the bulkhead 20A overlaps with the entire fuel tank 10A when viewed from the ship's width direction Dw. In other words, the bulkhead 20A is arranged to cover the superstructure 7 when viewed from the fuel tank 10A side. A passage 41A extending in the fore-aft direction FA is formed between the bulkhead 20A and the superstructure 7.

[0023] As shown in Figure 3, the bulkhead 20A is made of, for example, steel and has a first bulkhead portion 21A and a second bulkhead portion 22A. The first bulkhead portion 21A extends upward from the upper deck 5. The first bulkhead portion 21A is connected to the frame 13 and extends upward to a position above the bottom of the tank body 12 of the fuel tank 10A and below the top of the tank body 12 of the fuel tank 10A. Although the example shows the case where the first bulkhead portion 21A extends in a direction perpendicular to the top surface of the upper deck 5, the first bulkhead portion 21A is not limited to being vertical as long as it extends upward from the upper deck 5.

[0024] The second bulkhead portion 22A extends from the upper edge of the first bulkhead portion 21A toward the outside in the ship's transverse direction Dw. The second bulkhead portion 22A illustrated in this embodiment is inclined so that it is positioned higher toward the outside in the ship's transverse direction Dw. The outer edge of the second bulkhead portion 22A in the ship's transverse direction Dw is connected to the tank connection portion 14 located on the tank main body 12 of the fuel tank 10A. That is, in this embodiment, the upper edge of the bulkhead 20A is connected to the uppermost part of the fuel tank 10A. The side of the fuel tank 10A facing the superstructure 7 (the central side in the ship's transverse direction Dw) and the opposite side (the side of the ship's side 3A, which is the outside of the ship's transverse direction Dw) are open and not covered by the bulkhead 20A. The bulkhead 20A may be connected to the outer circumferential surface of the tank main body 12 of the fuel tank 10A via a connecting member (not shown).

[0025] The bulkhead 20B is arranged symmetrically to the bulkhead 20A in the ship's transverse direction Dw, and is arranged between the fuel tank 10B, which is arranged on the other side in the ship's transverse direction Dw, and the superstructure 7. In other words, the bulkhead 20B is arranged closer to the center in the ship's transverse direction Dw than the fuel tank 10B. The bulkhead 20B exemplified in this embodiment is arranged between the fuel tank 10B and the superstructure 7, on the side closer to the fuel tank 10B than the superstructure 7 in the ship's transverse direction Dw.

[0026] The bulkhead 20B is formed so as to cover the surface of the fuel tank 10B facing the superstructure 7 in the ship's width direction Dw (the side facing the superstructure 7). The bulkhead 20B has dimensions that are the same as or larger than those of the fuel tank 10B in both the fore-aft direction FA and the vertical direction Dv so as to overlap the entire fuel tank 10B when viewed from the ship's width direction Dw. In other words, the bulkhead 20B is arranged so as to cover the superstructure 7 when viewed from the fuel tank 10B side. A passage 41B extending in the fore-aft direction FA is formed between the bulkhead 20B and the superstructure 7.

[0027] Bulkhead 20B is made of steel, for example, and, like bulkhead 20A, has a first bulkhead portion 21B and a second bulkhead portion 22B. Like first bulkhead portion 21A, first bulkhead portion 21B extends upward from upper deck 5. First bulkhead portion 21B is integrally connected to frame 13 and extends upward to a position above the lowest part of tank body 12 of fuel tank 10B and below the highest part of tank body 12 of fuel tank 10B. Although the example shown is one in which first bulkhead portion 21B extends in a direction perpendicular to the top surface of upper deck 5, first bulkhead portion 21B is not limited to a vertical direction as long as it extends upward from upper deck 5.

[0028] The second bulkhead 22B is symmetrically disposed in the transverse direction Dw with respect to the second bulkhead 22A and extends from the upper edge of the first bulkhead 21B toward the outside in the transverse direction Dw. The second bulkhead 22B illustrated in this embodiment is inclined so that it is positioned higher toward the outside in the transverse direction Dw. The outer edge of the second bulkhead 22B in the transverse direction Dw is connected to the tank connection portion 14 located on the tank body 12 of the fuel tank 10B. That is, in this embodiment, the upper edge of the bulkhead 20B is connected to the top of the fuel tank 10B. The side of the fuel tank 10B facing the superstructure 7 (the center side in the transverse direction Dw) and the opposite side (the side of the ship's side 3B, which is the outside of the transverse direction Dw) are open and not covered by the bulkhead 20A. The bulkhead 20B may be connected to the outer circumferential surface of the tank body 12 of the fuel tank 10B via a connecting member (not shown).

[0029] An escape boat 40 is installed on the upper deck 5, closer to the stern 2b than the superstructure 7. In addition, a vent post 35 is installed on the upper deck 5 closer to the stern 2b than the superstructure 7. The vent post 35 is capable of discharging vent gases and the like from cargo tanks mounted in the cargo compartments of compartments S2 to S6 into the atmosphere. In this embodiment, the vent post 35 is disposed, for example, at a distance closer to the stern 2b than the superstructure 7 and fuel tanks 10A, 10B.

[0030] (Action and effect) In the ship 1 of the above embodiment, the fuel tanks 10A, 10B are disposed on the ship sides 3A, 3B side of the superstructure 7. This allows the fuel tanks 10A, 10B to be disposed by effectively utilizing the limited space on the upper deck 5. In this configuration, bulkheads 20A, 20B are provided between the fuel tanks 10A, 10B and the superstructure 7. These bulkheads 20A, 20B can effectively prevent fuel stored in the fuel tanks 10A, 10B from reaching the superstructure 7, even in the unlikely event of a leak. The bulkheads 20A, 20B can also serve as fire compartments for the superstructure 7. Therefore, providing the bulkheads 20A, 20B can narrow the distance between the fuel tanks 10A, 10B and the superstructure 7 in the ship's width direction Dw connecting the pair of ship sides 3A, 3B, and can suppress cost increases that would result from ensuring the fire resistance of the side of the superstructure 7 facing the fuel tanks 10A, 10B.

[0031] Furthermore, in the above embodiment, the fuel tanks 10A, 10B are arranged on one of the pair of shipboard sides 3A and the other shipboard side 3B relative to the superstructure 7. This makes it possible to effectively utilize the space on the upper deck 5 while increasing the capacity of the fuel tanks 10A, 10B.

[0032] Furthermore, in the above embodiment, the bulkheads 20A, 20B are formed to cover the sides of the fuel tanks 10A, 10B that face the superstructure 7. This makes it possible to more effectively prevent fuel from leaking from the fuel tanks 10A, 10B from reaching the superstructure 7. In addition, the outer sides of the fuel tanks 10A, 10B in the ship's width direction Dw, which are opposite the sides that face the superstructure 7, are not covered by the bulkheads 20A, 20B and are open. This makes it possible for fuel that leaks from the fuel tanks 10A, 10B to dissipate to the outer sides in the ship's width direction Dw, thereby reducing the impact on the superstructure 7.

[0033] In the above embodiment, the second partitions 22A, 22B extending upward from the upper ends of the first partitions 21A, 21B are inclined toward the fuel tanks 10A, 10B. This allows the partitions 20A, 20B to cover the sides of the fuel tanks 10A, 10B facing the superstructure 7 while keeping the height of the partitions 20A, 20B low.

[0034] Furthermore, in the above embodiment, the partition walls 20A, 20B are connected to the mounts 13 of the fuel tanks 10A, 10B. This allows the partition walls 20A, 20B to be firmly installed.

[0035] In the above embodiment, the upper edges of the partition walls 20A, 20B are connected to the tank connector 14, which is part of the fuel tanks 10A, 10B. This allows the partition walls 20A, 20B to be firmly installed.

[0036] Furthermore, in the above embodiment, passages 41A, 41B are formed between bulkheads 20A, 20B and superstructure 7. The fuel tank 10A side of passage 41A is covered by bulkhead 20A, and the fuel tank 10B side of passage 41B is covered by bulkhead 20B, ensuring the safety of passages 41A, 41B. Therefore, passages 41A, 41B can be used as evacuation passages.

[0037] (Other embodiments) The above describes in detail the embodiments of the present disclosure with reference to the drawings, but the specific configuration is not limited to this embodiment, and design changes and the like are also included within the scope that does not deviate from the gist of the present disclosure. In the above embodiment, the fuel tanks 10A, 10B are provided on both sides of the superstructure 7 in the ship width direction Dw, but this is not limited to this. The fuel tanks may be arranged on at least one of the ship sides 3A, 3B of the superstructure 7. Furthermore, multiple fuel tanks 10A, 10B may be arranged side by side in the fore-and-aft direction FA between the superstructure 7 and the ship sides 3A, 3B. In this case, the bulkheads 20A, 20B may be provided to integrally cover the multiple fuel tanks 10A, 10B lined up in the fore-and-aft direction FA, or may be provided individually for each of the multiple fuel tanks 10A, 10B lined up in the fore-and-aft direction FA.

[0038] <Additional Notes> The ship 1 described in the embodiment can be understood, for example, as follows.

[0039] (1) The vessel 1 of the first aspect comprises a hull 2 ​​having a pair of side walls 3A, 3B and an upper deck 5, a superstructure 7 extending further upward from the upper deck 5 and having accommodation areas, fuel tanks 10A, 10B arranged on at least one of the side walls 3A, 3B of the upper deck 5 relative to the superstructure 7, and bulkheads 20A, 20B provided between the fuel tanks 10A, 10B and the superstructure 7.

[0040] This allows the fuel tanks 10A, 10B to be arranged by effectively utilizing the limited space on the upper deck 5. In this configuration, bulkheads 20A, 20B are provided between the fuel tanks 10A, 10B and the superstructure 7. These bulkheads 20A, 20B can effectively prevent the fuel stored in the fuel tanks 10A, 10B from reaching the superstructure 7, even in the unlikely event of a leak. The bulkheads 20A, 20B can also serve as fire compartments for the superstructure 7. Therefore, by providing the bulkheads 20A, 20B, it is possible to narrow the distance between the fuel tanks 10A, 10B and the superstructure 7 in the ship's width direction Dw connecting the pair of ship sides 3A, 3B, and it is also possible to suppress an increase in costs due to ensuring the fire resistance of the side of the superstructure 7 facing the fuel tanks 10A, 10B.

[0041] (2) The ship 1 according to the second aspect is the ship 1 of (1), in which the fuel tanks 10A, 10B are arranged on one side of the ship 3A and the other side of the ship 3B relative to the superstructure 7, respectively.

[0042] This allows the space on the upper deck 5 to be used effectively, while increasing the capacity of the fuel tanks 10A and 10B.

[0043] (3) The ship 1 according to the third aspect is the ship 1 of (1) or (2), wherein the bulkheads 20A, 20B are formed to cover the sides of the fuel tanks 10A, 10B facing the superstructure 7.

[0044] This makes it possible to more effectively prevent the fuel from reaching the upper structure 7 even in the unlikely event that the fuel stored in the fuel tanks 10A, 10B leaks.

[0045] (4) The ship 1 according to the fourth aspect is the ship 1 of (1) or (2), wherein the bulkheads 20A, 20B comprise first bulkhead portions 21A, 21B extending upward from the upper deck 5 and second bulkhead portions 22A, 22B inclined upward from the upper ends of the first bulkhead portions 21A, 21B toward the fuel tanks 10A, 10B.

[0046] This allows the sides of the fuel tanks 10A, 10B facing the superstructure 7 to be covered by the partition walls 20A, 20B while keeping the height of the partition walls 20A, 20B low.

[0047] (5) The ship 1 according to the fifth aspect is the ship 1 of (1) or (2), wherein the fuel tanks 10A, 10B comprise a tank body 12 and a platform 13 provided on the upper deck 5 and supporting the tank body 12 from below, and the bulkheads 20A, 20B are connected to the platform 13.

[0048] This allows the partition walls 20A and 20B to be firmly installed.

[0049] (6) The vessel 1 according to a sixth aspect is the vessel 1 according to (1) or (2), wherein upper edges of the bulkheads 20A and 20B are connected to parts of the fuel tanks 10A and 10B.

[0050] This allows the partition walls 20A and 20B to be firmly installed.

[0051] (7) The ship 1 according to the seventh aspect is the ship 1 of (1) or (2), in which passages 41A, 41B extending in the bow-stern direction FA of the hull 2 ​​are formed between the bulkheads 20A, 20B and the superstructure 7.

[0052] As a result, the fuel tanks 10A, 10B sides of the passages 41A, 41B are covered by the partition walls 20A, 20B, ensuring safety in the passages 41A, 41B. Therefore, the passages 41A, 41B can be used for evacuation. [Explanation of symbols]

[0053] 1...Vessel 2...Hull 2a...Bow 2b...Stern 3A, 3B...Side 4...Bottom 5...Upper deck 6...Bottom deck 7...Superstructure 8...Screw 10A, 10B...Fuel tank 11...Compartment wall 12...Tank body 12a...First head section 12b...Second head section 12m...Middle tank section 13...Rack 14...Tank connection section 15...Prime motor 20A, 20B...Bulkhead 21A, 21B...First bulkhead section 22A, 22B...Second bulkhead section 30...Engine casing 35...Vent post 40...Escape boat 41A, 41B...Cassilety 71...Superstructure main body section 72...Wing section S, S1 to S7...Compartments

Claims

1. a hull having a pair of side walls and an upper deck; a superstructure extending further upward from the upper deck and having a living area; A fuel tank disposed on at least one of the ship sides relative to the superstructure on the upper deck; a bulkhead provided between the fuel tank and the upper structure; Equipped with The partition wall is A first bulkhead portion extending upward from the upper deck; a second partition wall portion inclined upward from the upper end of the first partition wall portion toward the fuel tank; ship.

2. A hull having a pair of side walls and an upper deck; a superstructure extending further upward from the upper deck and having a living area; A fuel tank disposed on at least one of the ship sides relative to the superstructure on the upper deck; a bulkhead provided between the fuel tank and the upper structure; Equipped with The upper edge of the bulkhead is connected to a portion of the fuel tank. ship.

3. A hull having a pair of side walls and an upper deck; a superstructure extending further upward from the upper deck and having a living area; A fuel tank disposed on at least one of the ship sides relative to the superstructure on the upper deck; a bulkhead provided between the fuel tank and the upper structure; Equipped with A passage extending in the bow-stern direction of the hull is formed between the bulkhead and the superstructure. ship.

4. The fuel tanks are disposed on one side of the superstructure and the other side of the superstructure. A vessel according to any one of claims 1 to 3.

5. The partition wall is formed to cover the side of the fuel tank facing the upper structure. A vessel according to any one of claims 1 to 3.

6. The fuel tank is The tank body and a platform provided on the upper deck and supporting the tank body from below, The partition is connected to the frame. A vessel according to any one of claims 1 to 3.

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