Liquefied gas carrier

Abstract

To provide a structure capable of arranging a cargo / equipment room at a proper location for transporting vaporized gas to be the fuel to an engine room and capable of sufficiently ensuring a placement area for the cargo / equipment room in a liquefied gas carrier.SOLUTION: A liquefied gas carrier comprises a hull where a bow compartment, a cargo compartment, and a stern compartment are lined from the bow in a ship longitudinal direction, an engine room placed under an upper deck in the stern compartment of the hull, and a superstructure placed above the engine room in the stern compartment of the hull. The superstructure has a first upper deck floor with a first opening on at least a part of both side faces in the width direction and with practically the same floor level as the upper deck, and a first upper layer floor in the upper layer than the first upper deck floor. The cargo / equipment room is placed on the first upper layer floor.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to a liquefied gas carrier ship.

Background Art

[0002] Liquefied gas carrier ships for transporting liquefied gases such as LNG and liquefied hydrogen are known. Some liquefied gas carrier ships have cargo tanks arranged in the cargo compartment at the center in the longitudinal direction of the hull, and an engine room arranged inside the hull on the stern side of the cargo compartment. In such a liquefied gas carrier ship, in order to use the vapor gas generated by the natural evaporation of the liquefied gas, which is the cargo, as fuel in the main engine in the engine room, fuel gas pipes are laid from the cargo tank to the rear of the engine room. A cargo machinery room housing equipment for transferring vapor gas to the engine room and onshore facilities is provided between the cargo tank and the engine room.

[0003] Patent Document 1 discloses an LNG ship including an upper stern structure and a plurality of spherical tanks arranged in the longitudinal direction on the bow side of the upper stern structure, and equipment arrangement areas provided on the decks on the left and right sides between the spherical tanks. A handling manifold and a gas equipment room (cargo machinery room) are arranged in these equipment arrangement areas.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the LNG ship disclosed in Patent Document 1, by utilizing the fact that the cargo tanks are spherical, the space generated between the spherical tanks is used as an equipment arrangement area where the cargo machinery room is arranged. However, the cargo tanks are not limited to spherical shapes, and there is a possibility that sufficient equipment arrangement areas cannot be secured due to the enlargement of the cargo tanks and cargo equipment.

[0006] This disclosure has been made in view of the above circumstances, and its purpose is to propose a structure for a liquefied gas carrier in which the cargo equipment room is located in a position suitable for transferring vaporized gas to the engine room, and which also ensures sufficient space for the cargo equipment room. [Means for solving the problem]

[0007] A liquefied gas carrier according to one aspect of this disclosure is A hull in which the bow compartment, cargo compartment, and stern compartment are arranged from the bow towards the length of the ship, The engine room located below the upper deck in the stern section of the hull, The stern superstructure is characterized by comprising: a first upper deck floor located above the engine room in the stern compartment of the hull, having first openings in at least a portion of both walls in the width direction and substantially the same floor level as the upper deck; and a first upper floor located above the first upper deck floor, with a cargo equipment room located on the first upper floor. [Effects of the Invention]

[0008] According to this disclosure, in a liquefied gas carrier, it is possible to propose a structure that allows for the placement of a cargo equipment room in a location suitable for the transfer of vaporized gas to the engine room, while also ensuring sufficient space for the cargo equipment room. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 is a side view showing the overall configuration of a liquefied gas carrier according to one embodiment of the present disclosure. [Figure 2] Figure 2 is an enlarged view of the stern section of a liquefied gas carrier. [Figure 3] Figure 3 is an enlarged view of the stern section of a liquefied gas carrier according to Modification 1. [Figure 4] Figure 4 is an enlarged view of the bow section of a liquefied gas carrier according to Modification 2. [Figure 5]Figure 5 is an enlarged view of the stern section of a liquefied gas carrier according to Modification 3. [Modes for carrying out the invention]

[0010] Next, embodiments of the present disclosure will be described with reference to the drawings. Figure 1 is a schematic diagram of a liquefied gas carrier 1 according to one embodiment of the present disclosure. The liquefied gas carrier 1 shown in Figure 1 is a liquefied hydrogen carrier for transporting liquefied hydrogen. However, the liquefied gas carrier 1 may be a vessel for transporting liquefied gases such as LNG or LPG. The liquefied gas carrier 1 comprises a hull 2 ​​composed of a bottom, side walls, and an upper deck 18, etc. A propeller 28 and a rudder 29 are located at the stern of the hull 2. The hull 2 ​​is defined as having a bow compartment R1, a cargo compartment R2, and a stern compartment R3 arranged in the direction of the ship's length from the bow.

[0011] Cargo compartment R2 is divided into multiple holds 21 arranged longitudinally by bulkheads 22. Cargo compartment R2 is defined as the section longitudinally from the transverse bulkhead 22 forming the forward wall of the hold 21 closest to the bow to the transverse bulkhead 22 forming the aft wall of the hold 21 closest to the stern. The forward compartment R1 is defined as the section of hull 2 ​​that is forward of cargo compartment R2. The aft compartment R3 is defined as the section of hull 2 ​​that is aft of cargo compartment R2.

[0012] A cargo tank 3 is positioned in each hold 21. The lower part of the cargo tank 3 is housed in the hold 21. Since the liquefied gas carrier 1 according to this embodiment is a liquefied hydrogen carrier, the cargo tank 3 is a liquefied hydrogen tank for transporting liquefied hydrogen. The liquefied gas carrier 1 according to this embodiment is equipped with four cargo tanks 3. However, the number of cargo tanks 3 mounted on the hull 2 ​​may be one or more.

[0013] Figure 2 is an enlarged view of the stern compartment R3 of the liquefied gas carrier 1. As shown in Figures 1 and 2, an engine room 35 is provided inside the hull 2 ​​of the stern compartment R3. Part of the engine room 35 may protrude above the upper deck 18. The engine room 35 houses machinery such as a main engine 34, a generator, and a boiler. The main engine 34 is connected to a propeller 28 located at the stern of the hull 2 ​​by a propeller shaft.

[0014] The stern superstructure 15 is located above the upper deck 18 of the stern compartment R3. The stern superstructure 15 is located immediately aft of the cargo compartment R2, and in plan view, part or all of the stern superstructure 15 overlaps with the engine room 35. The stern superstructure 15 has an upper deck floor 71 (first upper deck floor) at substantially the same floor level as the upper deck 18, and an upper floor 72 (first upper floor) that is higher than the upper deck floor 71.

[0015] The upper floor 72 may be singular or plural. The upper floor 72 is the cargo equipment room 14. Cargo equipment is located in the cargo equipment room 14. Cargo equipment includes, for example, cargo pumps, cargo compressors, cargo heaters, and vaporizers.

[0016] The upper deck floor 71 is provided with sufficiently large openings 67 (first openings) on both the port and starboard sides that are always open. For example, the upper deck floor 71 may be a space without walls on the port and starboard sides, and partitioned by walls on the stern and bow sides. Alternatively, for example, the stern superstructure 15 may be a raised structure, with the upper deck 18 and the upper floor 72 separated by columns, and the space between the upper deck 18 and the upper floor 72 being the upper deck floor 71. In this way, the stern superstructure 15 is partially or entirely a piloti structure.

[0017] An upper deck floor 71 existing between the upper and lower levels of the engine room 35 and the cargo equipment room 14 provides a gap between the upper and lower levels of the engine room 35 and the cargo equipment room 14. This can prevent gas leaked in the cargo equipment room 14 from entering the engine room 35. Also, it is possible to reduce the transmission of vibration and noise from the cargo equipment to the engine room 35 side.

[0018] A part of a communication passage 76 leading to the engine room 35 is arranged on the upper deck floor 71. In an example of the communication passage 76 shown in FIG. 2, the entrance and exit of the communication passage 76 are on the upper deck 18 and arranged on the stern side rather than the upper part of the stern structure 15. The communication passage 76 has a first part extending from the entrance and exit toward the bow side on the upper deck floor 71, and a second part extending downward from the end of the first part below the upper deck 18. To prevent the interior of the communication passage 76 from being exposed to the upper deck floor 71, the first part of the communication passage 76 passing through the upper deck floor 71 is enclosed, for example, formed in a cylindrical shape. The second part of the communication passage 76 is located inside the engine room 35 and is not enclosed. The interior of such a communication passage 76 is in communication with the engine room 35 and can be regarded as an extended part of the engine room 35. However, the end of the second part of the communication passage 76 serves as a connection port between the communication passage 76 and the substantial engine room 35. The mode of the communication passage 76 is not limited to the example shown in FIG. 2, and the entrance and exit of the communication passage 76 on the upper deck 18 may be arranged on the bow side, the right side, or the left side rather than the upper deck floor 71. Since the communication passage 76 passes through the upper deck floor 71 as described above, the connection port between the communication passage 76 and the substantial engine room 35 can be provided below the cargo equipment room 14 arranged in the upper part of the stern structure 15. The bow side part of the engine room 35 is located below the cargo equipment room 14. The bow side part of the engine room 35 is the part that serves as the working space for the crew in the engine room 35. By bringing the connection port between the communication passage 76 and the substantial engine room 35 closer to this working space, the movement line of the crew can be optimized.

[0019] The upper deck floor 71 can be used as a space where equipment and the like that can be exposed to the outside are arranged. In the example shown in FIG. 1, the mooring machine 49 is arranged substantially at the center in the ship width direction of the upper deck floor 71. The mooring machine 49 has a mooring line, a drum around which the mooring line is wound, and a winch capable of winding in and pulling out the mooring line. The mooring line drawn out from the mooring machine 49 can be pulled out to the right side or the left side of the hull through the opening 67 of the upper deck floor 71. Since the mooring line can be pulled out from the mooring machine 49 to either the left side or the right side, it is not necessary to provide the mooring machine 49 on both sides of the left side and the right side of the hull. However, the mooring machine 49 is arranged on one of the left side and the right side of the hull outside the upper deck floor 71, and a mooring line may be pulled out from the mooring machine 49 to the other of the left side and the right side of the hull through the opening 67 of the upper deck floor 71.

[0020] Above the upper deck 18 of the stern section R3 and on the stern side of the upper stern structure 15, a living area 16 (second living area) is arranged. The living area 16 is arranged at a position horizontally separated from the cargo equipment room 14, so that a horizontal gap is formed between the living area 16 and the cargo equipment room 14. Desirably, the living area 16 is arranged within the vertical height level of the upper deck floor 71 of the upper stern structure 15. Thereby, the living area 16 is arranged at a position horizontally and vertically separated from the cargo equipment room 14, so that horizontal and vertical gaps are formed between the living area 16 and the cargo equipment room 14.

[0021] In a plan view, the living quarters 16 partially or completely overlap with the engine room 35. The entrance to the living quarters 16 is located horizontally away from the cargo equipment room 14. For example, if the entrance to the living quarters 16 opens toward the bow, it is located a predetermined distance from the upper deck floor 71 toward the captain. Alternatively, for example, the entrance to the living quarters 16 may open toward the starboard or port side at a predetermined distance from the upper deck floor 71 toward the captain. It is desirable that the entrance to the connecting passage 76 be located near the entrance to the living quarters 16. In this case, crew members can move from the living quarters 16 to the engine room 35 (or vice versa) via the connecting passage 76. Examples of spaces included in the living quarters 16 (second living quarters) include toilets, washrooms, rest rooms, shower rooms, changing rooms, watch rooms, lockers, etc. The living quarters 16 may be used as living space for the crew working in the engine room 35.

[0022] An engine casing 36 is positioned on the upper deck 18 of the stern compartment R3, aft of the stern superstructure 15. The engine casing 36 encloses the boiler and the exhaust pipes of the main engine 34, which are located above the engine room 35, and a chimney 48 connected to these exhaust pipes protrudes from the top of the engine casing 36. It is desirable that the engine casing 36 be positioned aft of the living quarters 16. This creates a horizontal gap between the living quarters 16 and the engine casing 36. However, as shown in Figure 3, the living quarters 16 and the engine casing 36 may be positioned so as to overlap in the length direction. In this case, it is desirable that the living quarters 16 be positioned away from the engine casing 36 so that a gap exists in the width direction between the living quarters 16 and the engine casing 36. However, the engine casing 36 and the living quarters 16 may be adjacent to each other.

[0023] Returning to Figure 1, the bow superstructure 12 is positioned above the upper deck 18 of the bow compartment R1. A portion of the bow superstructure 12 may protrude below the upper deck 18. The bow superstructure 12 has an upper deck floor 73 (second upper deck floor) at substantially the same floor level as the upper deck 18, and an upper floor 74 (second upper floor) that is higher than the upper deck floor 73.

[0024] The upper floor 74 may have one or more levels. In the liquefied gas carrier 1 shown in Figure 1, the upper floor 74 has multiple levels, with the top level being the bridge 13. The bridge 13 is a place for navigation and ship handling, and includes the wheelhouse 11 and the bridge wing. In addition to the bridge 13, the bow superstructure 12 has a bow functional area 20 located below the bridge 13. The bow functional area 20 includes at least one of the following: a first living quarters, an equipment room for equipment related to safe operation, a warehouse for storing navigational equipment, a cable wiring area, a battery room, a passageway, and a staircase. Examples of spaces included in the first living quarters include a toilet, washroom, pilot's lounge, watch room, and watch pantry. The first living quarters may also include a public room, living quarters, office, sickroom, kitchen, galley for providing meals to the crew, and dining hall. Examples of equipment to be placed in the equipment room include navigational equipment such as the gyrocompass and VDR (Voyage Data Recorder), the control unit for the automatic switching telephone, the control unit for the shipboard broadcasting system, the antenna ground switching unit for the MF / HF transceiver, and the transducer for the radar.

[0025] The upper deck floor 73 of the bow superstructure 12 is provided with sufficiently large openings 66 (second openings) that are always open on both the port and starboard sides. For example, the upper deck floor 73 may be a space without walls on the port and starboard sides, and partitioned by walls on the stern and bow sides. Alternatively, for example, the bow superstructure 12 may be a raised structure, with the upper deck 18 and the upper floor 74 separated by columns, and the space between the upper deck 18 and the upper floor 74 being the upper deck floor 73. In this way, part or all of the bow superstructure 12 is a piloti structure. The upper deck floor 73 can be used as a space for equipment, tanks, etc. that can be exposed to the outside. For example, similar to the upper deck floor 71 of the stern superstructure 15, mooring equipment 46 may also be installed on the upper deck floor 71 of the bow superstructure 12.

[0026] Furthermore, as shown in Figure 4, an exposed auxiliary deck 75, continuous in the width direction of the ship, may be provided on the roof or side of the bow superstructure 12, in addition to or instead of the upper deck floor 71. Mooring machines 46 may be placed on this auxiliary deck 75. As shown in Figure 5, an auxiliary deck 78 similar to this auxiliary deck 75 may also be provided on the stern superstructure 15, and mooring machines 79 may be placed on the auxiliary deck 78. In this case, the mooring machines 49 on the upper deck floor 71 may be omitted, or mooring machines 49 and 79 may be placed on both the auxiliary deck 78 and the upper deck floor 71.

[0027] <Summary> As described above, the liquefied gas carrier 1 according to this embodiment is A hull 2 ​​is defined with a forward compartment R1, a cargo compartment R2, and a stern compartment R3 arranged from the bow in the direction of the ship's length, In the stern compartment R3 of the hull 2, the engine room 35 is located below the upper deck 18, The stern superstructure 15 is located in the stern compartment R3 of the hull 2, above the engine room 35, and has a first upper deck floor 71 at substantially the same floor level as the upper deck 18, with first openings 67 in at least a portion of both sides in the width direction, and a first upper floor 72 that is higher than the first upper deck floor 71, with a cargo equipment room 14 located on the first upper floor 72.

[0028] In the liquefied gas carrier 1 with the above configuration, the cargo equipment room 14 is located aft of the cargo compartment R2, so a sufficient area for the cargo equipment room 14 can be secured compared to the case where the cargo equipment room 14 is located between the cargo tanks 3. Furthermore, in the liquefied gas carrier 1, the upper deck floor 71 provides a gap between the engine room 35 and the cargo equipment room 14, preventing gas leaking from the cargo equipment room 14 from entering the engine room 35, and making it possible to position the cargo equipment room 14 above the engine room 35. The cargo equipment room 14, located above the engine room 35, is suitable for transporting vaporized gas that will be used as fuel to the engine room 35. In addition, the upper deck floor 71 can reduce the transmission of vibrations and noise from the cargo equipment located in the cargo equipment room 14 to the engine room 35. Furthermore, since the upper deck floor 71 is a space located above the upper deck 18 and is connected to the outside of the stern superstructure 15 through the first opening 67, the upper deck floor 71 can be used as a space for equipment, tanks, etc. that can be exposed to the outside. Therefore, compared to the case where a gap is provided below the upper deck 18 between the engine room 35 and the cargo equipment room 14, the uses of the space in this case are expanded.

[0029] As disclosed herein, the liquefied gas carrier 1 may further include a first mooring machine 49 located on the first upper deck floor 71 of the stern superstructure 15, capable of deploying mooring lines on both sides in the width direction of the ship through a first opening 67.

[0030] In conventional vessels, mooring machines are positioned on both the left and right sides of the ship. However, the large number of mooring machines leads to increased costs not only for the mooring machines themselves but also for hydraulic piping (if the drive system is hydraulic) and electrical wiring (if the drive system is electric). In contrast, in the liquefied gas carrier 1 described above, mooring machines 49 capable of extending mooring lines in both the port and starboard directions are positioned on the upper deck floor 71, thus reducing the costs of the mooring machines themselves, hydraulic piping, and electrical wiring.

[0031] Furthermore, as disclosed herein, in the liquefied gas carrier 1 described above, a connecting passage 76 that connects to the engine room 35 may be located on the first upper deck floor 71. The connecting passage 76 may be enclosed on the first upper deck floor 71.

[0032] Thus, by locating the connecting passage 76 to the engine room 35 on the first upper deck floor 71, crew members can move from the upper deck 18 to the engine room 35 (or vice versa) via the connecting passage 76. Furthermore, by locating the connecting passage 76 on the first upper deck floor 71, it becomes possible to position the actual connection point between the connecting passage 76 and the engine room 35 below the cargo equipment room 14. The forward portion of the engine room 35, located below the cargo equipment room 14, is the part of the engine room 35 that serves as the crew's workspace, and by bringing the connection point between the connecting passage 76 and the engine room 35 closer to this workspace, the crew's movement can be optimized.

[0033] Furthermore, as disclosed herein, the liquefied gas carrier 1 includes an engine casing 36 located aft of the stern superstructure 15 in the stern compartment R3 of the hull 2, and a living quarters 16 located aft of the stern superstructure 15. However, the liquefied gas carrier 1 may have at least one of the engine casing 36 and the living quarters 16. If both the engine casing 36 and the living quarters 16 are provided, for example, the living quarters 16 may be located horizontally apart from the stern superstructure 15 and the engine casing 36 between the stern superstructure 15 and the engine casing 36.

[0034] By positioning the living quarters 16 horizontally (in the length direction) away from the cargo equipment room 14 towards the stern, it is possible to prevent leaking gases from the cargo equipment room 14 from entering the living quarters 16. Similarly, by positioning the engine casing 36 horizontally (in the length direction) away from the cargo equipment room 14 towards the stern, it is possible to prevent leaking gases from the cargo equipment room 14 from entering the engine casing 36. Furthermore, the living quarters 16 can be used as living space for crew members working in the engine room 35 located below the stern superstructure 15. Moreover, it is possible to reduce the transmission of vibrations and noise from the cargo equipment located in the cargo equipment room 14 to the living quarters 16.

[0035] Furthermore, as disclosed herein, the living quarters 16 may be located within the vertical height level of the first upper deck floor 71 of the stern superstructure 15.

[0036] By positioning the living area 16 at a distance from the cargo equipment room 14 both vertically and horizontally, it is possible to prevent leaked gases from the cargo equipment room 14 from entering the living area 16.

[0037] Furthermore, as disclosed herein, the liquefied gas carrier 1 may further include a bow superstructure 12 located on the upper deck 18 of the bow compartment R1 of the hull 2, having a second upper deck floor 73 at substantially the same floor level as the upper deck 18 and having second openings 66 in at least a portion of both sides in the width direction, and a second upper floor 74 above the second upper deck floor 73, and a second mooring machine 46 located on the second upper deck floor 73 of the bow superstructure 12, capable of deploying mooring lines to both sides in the width direction through the second openings 66.

[0038] In the liquefied gas carrier 1 described above, a mooring machine 46 capable of extending mooring lines in both the port and starboard directions is positioned on the upper deck floor 73 of the bow superstructure 12. Therefore, it is not necessary to provide a mooring machine 46 on both the port and starboard sides, thereby reducing the cost of the mooring machine itself and hydraulic piping.

[0039] Alternatively, as described herein, the liquefied gas carrier 1 may further include a bow superstructure 12 located on the upper deck 18 of the bow section R1 of the hull 2 ​​and having an auxiliary deck 75 that is continuous in the width direction on the roof or side, and a second mooring machine 46 located on the auxiliary deck 75.

[0040] In the liquefied gas carrier 1 described above, a mooring machine 46 capable of extending mooring lines in both the port and starboard directions is positioned on the auxiliary deck 75 of the bow superstructure 12. Therefore, it is not necessary to provide a mooring machine 46 on both the port and starboard sides, thereby reducing the cost of the mooring machine itself and hydraulic piping.

[0041] Furthermore, as described herein, in the liquefied gas carrier 1 described above, the stern superstructure 15 may further include an auxiliary deck 78 on the roof or side that is continuous in the width direction of the ship, and a third mooring engine 79 located on the auxiliary deck 78.

[0042] In the liquefied gas carrier 1 described above, a mooring machine 79 capable of extending mooring lines in both the port and starboard directions is positioned on the auxiliary deck 78 of the stern superstructure 15. Therefore, it is not necessary to provide a mooring machine 79 on both the port and starboard sides, thereby reducing the cost of the mooring machine itself and hydraulic piping.

[0043] The foregoing disclosures are presented for illustrative and explanatory purposes only and are not intended to limit the invention to the forms disclosed herein. For example, in the above detailed description, various features of the disclosure are grouped into a single embodiment for the purpose of streamlining the disclosure. However, some of the features contained herein can be combined into alternative embodiments, configurations, or aspects other than those discussed above. [Explanation of Symbols]

[0044] 1: Liquefied gas carrier 2: Hull 3: Cargo tank 12: Bow superstructure 13: Funabashi 14: Cargo equipment room 15: Stern superstructure 16: Living area 18: Upper deck 35: Engine Room 46: Mooring machine 49: Mooring machine 71: Upper Deck Floor 72: Upper floor 73: Upper Deck Floor 74: Upper floor 75: Support Deck 76: Connecting passage 78: Support Deck 79: Mooring machine R1: Bow section R2: Cargo compartment R3: Stern section

Claims

1. A hull in which the bow compartment, cargo compartment, and stern compartment are arranged from the bow towards the length of the ship, The engine room located below the upper deck in the stern section of the hull, The stern superstructure comprises a first upper deck floor at the same floor level as the upper deck, located above the engine room in the stern section of the hull, having first openings in at least a portion of both sides in the width direction, and a first upper floor located above the first upper deck floor, with a cargo equipment room located on the first upper floor. Liquefied gas carrier.

2. The vessel further comprises a first mooring machine positioned on the first upper deck floor of the stern superstructure, capable of deploying mooring lines to both sides in the width direction of the vessel through the first opening. A liquefied gas carrier according to claim 1.

3. A connecting passageway is located on the first upper deck floor, which is connected to the engine room. A liquefied gas carrier according to claim 1 or 2.

4. The vessel further comprises at least one of the following: an engine casing located in the stern section of the hull, away from the stern superstructure toward the stern; and a living quarters located in the stern section of the hull, away from the stern superstructure toward the stern. A liquefied gas carrier according to any one of claims 1 to 3.

5. The living quarters are located within the vertical height level of the first upper deck floor of the stern superstructure. The liquefied gas carrier according to claim 4.

6. A bow superstructure is provided, which is located above the upper deck of the bow section of the hull, and has a second upper deck floor at the same floor level as the upper deck, with a second opening in at least a portion of both sides in the width direction of the hull, and a second upper floor above the second upper deck floor. The ship further comprises a second mooring machine positioned on the second upper deck floor of the aforementioned bow superstructure, capable of deploying mooring lines to both sides in the ship's width direction through the second opening. A liquefied gas carrier according to any one of claims 1 to 5.

7. A superstructure for the bow of the hull is located on the upper deck of the bow section of the hull and has an auxiliary deck on the roof or side that is continuous in the width direction of the ship, The vessel further comprises a second mooring engine located on the aforementioned auxiliary deck. A liquefied gas carrier according to any one of claims 1 to 5.

8. The aforementioned stern superstructure has an auxiliary deck on the roof or side that is continuous in the width direction of the ship, The vessel further comprises a third mooring engine located on the aforementioned auxiliary deck. A liquefied gas carrier according to any one of claims 1 to 7.

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