Ship

Abstract

The present invention relates to a ship, comprising: a hull accommodating a liquefied gas storage tank; and an engine room provided at the aft end of the hull and accommodating a propulsion engine. The hull has an upper deck of a cargo area that accommodates the liquefied gas storage tank, the upper deck being formed without a step difference, and has an aft deck that is provided above the engine room and is disposed lower than the upper deck, forming a step difference with the upper deck.

Description

shipping

[0001] The present invention relates to a ship.

[0002] A ship is a structure used to transport cargo and passengers or perform specific maritime operations. It typically consists of a hull, superstructure, and propulsion system. Ships carry cargo and float on the sea, transporting it from a point of origin to a destination. Their shape and size vary depending on their purpose. The type of cargo carried determines the ship's shape, interior, and exterior design. Modern ships, in particular, employ complex design techniques to ensure efficient operation and safety.

[0003] The interior of a ship is divided into several compartments, depending on its purpose. Typically, the space between the fore and aft is divided into the cargo area, engine room, and accommodations. The cabins contain living and working spaces for the crew, and for cargo ships, cargo storage space is given priority. Furthermore, in specialized vessels such as tankers, cargo storage tanks occupy the central structure, and special designs are applied to enhance safety and efficiency.

[0004] In particular, cabin locations on ships are fixed for each type of ship, depending on factors such as the shape of the cargo area. Specifically, for conventional gas carriers, cabins are located at the stern, while for container ships, they are located in the center. However, because the wheelhouse is located above the cabin, cabin placement becomes a crucial factor in determining the forward visibility during navigation. Furthermore, cabins, as structures with relatively large widths and heights, generate air resistance during navigation. Furthermore, cabins contain the crew's living quarters, and therefore must be designed as safe spaces.

[0005] Space utilization is a crucial factor in ship design. Within a limited hull, optimal layout must maximize cargo capacity and efficiently organize crew movement. Furthermore, designs must consider the ship's complex piping and electrical systems, and structural balance is essential to maintain the center of gravity and stability. Consequently, ship design requires a comprehensive approach that considers both space utilization optimization and safety and economic feasibility. In this context, numerous attempts are being made to modify the structure and layout of cabins to enhance operational efficiency.

[0006] The purpose of the present invention is to provide a ship in which a cabin is moved to the bow of a liquefied gas carrier and arranged, and which can efficiently utilize the hull space, including the stern space created by the cabin being moved to the bow.

[0007] The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned can be clearly understood by a person of ordinary skill in the art from the description below.

[0008] A ship according to one aspect of the present invention comprises a hull for accommodating a liquefied gas storage tank and an engine room provided at the stern of the hull for accommodating a propulsion engine, wherein the hull has an upper deck of a cargo area for accommodating the liquefied gas storage tank formed without a step, and a stern deck provided above the engine room and positioned lower than the upper deck to form a step with the upper deck.

[0009] Specifically, the engine casing is provided at the stern of the hull, and further includes an engine casing provided on the upper side of the engine room to discharge exhaust of the propulsion engine, the engine casing is arranged on the stern deck, and the engine room may have an upper surface provided parallel to the stern deck.

[0010] Specifically, a sunken deck equipped with mooring equipment is provided at the rear end of the stern deck, and the sunken deck can be connected to the rear end of the sunken deck in a flat plane without steps.

[0011] Specifically, the ship further includes a steering room provided at the rear of the engine room inside the hull and controlling the angle of the rudder, a carbon dioxide room provided between the side plating and the steering room inside the hull, a fresh water tank provided between the side plating and the steering room inside the hull, and a liquefied gas fuel tank provided above the engine room in the hull, wherein the carbon dioxide room is arranged on the opposite side of the fresh water tank with respect to the steering room, and is provided at the rear of the liquefied gas fuel tank, but may be provided at a position that does not overlap with the liquefied gas fuel tank.

[0012] Specifically, the vessel further includes a cabin provided on the bow of the hull and a passage provided on the upper deck and extending in the forward and backward directions, wherein the passage is provided in a sealed manner and connected to the rear end of the cabin, and the inside is controlled to be positively pressurized by receiving air from the cabin, and at least one entrance is provided at each of the front end, the rear end, and the middle point, and an air curtain by positive pressure is formed in the at least one entrance so that outside air can not flow into the inside of the passage.

[0013] According to one aspect of the present invention, a ship comprises a hull accommodating a liquefied gas storage tank, an engine room provided at the stern of the hull and accommodating a propulsion engine, a liquefied gas fuel tank provided above the engine room in the hull, and a cabin provided at the bow of the hull by being moved from the stern of the hull and including a wheelhouse, wherein at least a portion of the liquefied gas fuel tank is disposed in a stern space of the hull created by moving the cabin to the bow of the hull, a portion of which is provided above the engine room, and the remaining portion of which is provided above the liquefied gas storage tank.

[0014] Specifically, the liquefied gas fuel tanks are provided in multiple numbers, and are arranged on the left and right sides based on the dome of the liquefied gas storage tank exposed upward on the upper deck of the hull, but may be arranged in the front-rear direction of the hull, and the front end may be arranged adjacent to the dome of the liquefied gas storage tank.

[0015] Specifically, the plurality of liquefied gas fuel tanks each include a cylindrical portion extending in the longitudinal direction and a spherical portion ending both ends of the cylindrical portion, and a point where the front end of the cylindrical portion and the spherical portion are connected may be provided at a position overlapping the dome in the left-right direction.

[0016] Specifically, the ship further includes an engine casing provided at the stern of the hull and disposed on the upper side of the engine room to discharge exhaust of the propulsion engine, and the plurality of liquefied gas fuel tanks may be arranged in parallel in the front-back direction at the front of the engine casing.

[0017] Specifically, the engine room further includes an engine room hatch that is provided on the deck above the engine room at the front of the engine casing and opens and closes for entering and exiting the engine room, and a plurality of the liquefied gas fuel tanks can be arranged on the left and right sides based on the engine room hatch.

[0018] According to one aspect of the present invention, a ship includes a hull that accommodates a liquefied gas storage tank and a cabin provided at a bow of the hull, the cabin including a living area supported on a bow deck of the hull and having a first slope in which the front recedes from the bottom to the top, and a steering area provided above the living area and having a second slope in which the front protrudes forward from the bottom to the top, and the living area includes a lower area having a first-first slope angle with respect to the deck of the hull, and an upper area having a first-second slope angle that is relatively larger than the first-first angle.

[0019] Specifically, the front of the steering area and the front of the living area can have a shape that is sunken toward the rear.

[0020] Specifically, the front of the steering area may be arranged so that the lower part is parallel to the upper part of the front of the living area in the forward and backward direction.

[0021] Specifically, the hull may have an upper deck of a cargo area that accommodates the liquefied gas storage tank formed without a step, and the cabin may be provided on the bow deck that is positioned lower than the upper deck and forms a step with the upper deck.

[0022] Specifically, the cabin may be supported by a piloti structure and spaced upward from the bow deck, and the lower surface of the cabin may be arranged parallel to the upper deck.

[0023] A vessel according to the present invention can efficiently utilize the hull space, including the stern space created by moving the cabin to the bow of a liquefied gas carrier.

[0024] The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

[0025] Figure 1 is a side cross-sectional view of a vessel according to a first embodiment of the present invention.

[0026] Figure 2 is a plan view of a ship according to the first embodiment of the present invention.

[0027] Figure 3 is a cross-sectional view of a ship according to the first embodiment of the present invention.

[0028] Figure 4 is a cross-sectional view of a vessel according to the first embodiment of the present invention.

[0029] Figure 5 is an enlarged cross-sectional side view of the stern portion of a ship according to the first embodiment of the present invention.

[0030] FIG. 6 is an enlarged plan view of a manifold area of ​​a vessel according to the first embodiment of the present invention.

[0031] Figure 7 is an enlarged cross-sectional view of a portion of a manifold area of ​​a vessel according to the first embodiment of the present invention.

[0032] Figure 8 is an enlarged cross-sectional side view of the bow portion of a ship according to the first embodiment of the present invention.

[0033] Figure 9 is an enlarged cross-sectional side view of the cargo area of ​​a ship according to the first embodiment of the present invention.

[0034] Fig. 10 is an enlarged plan view of the stern portion of a ship according to the second embodiment of the present invention.

[0035] Fig. 11 is an enlarged plan view of the stern portion of a ship according to the second embodiment of the present invention.

[0036] Fig. 12 is an enlarged plan view of the stern portion of a ship according to the second-third embodiment of the present invention.

[0037] Fig. 13 is an enlarged cross-sectional side view of the stern portion of a ship according to the second embodiment of the present invention.

[0038] Fig. 14 is an enlarged plan view of the stern portion of a ship according to the 2nd-4th embodiment of the present invention.

[0039] Fig. 15 is an enlarged cross-sectional side view of the stern portion of a ship according to the second embodiment of the present invention.

[0040] Fig. 16 is an enlarged plan view of the stern portion of a ship according to the 2nd-5th embodiment of the present invention.

[0041] Fig. 17 is an enlarged cross-sectional side view of the bow portion of a vessel according to the third embodiment of the present invention.

[0042] Fig. 18 is a drawing for explaining an extended area at the rear of a cabin in the bow portion of a ship according to a third embodiment of the present invention.

[0043] Fig. 19 is an enlarged perspective view of the bow portion of a ship according to the third embodiment of the present invention.

[0044] Fig. 20 is a drawing for explaining a blocking part in the bow portion of a ship according to the third embodiment of the present invention.

[0045] FIG. 21 is a drawing for explaining a separation space of a piloti structure in a bow portion of a ship according to a third embodiment of the present invention.

[0046] Fig. 22 is a drawing for explaining a mining section of a cabin in the bow section of a ship according to a third embodiment of the present invention.

[0047] FIG. 23 is a drawing for explaining a plurality of crew rooms and corridors provided in a piloti structure in the bow section of a ship according to a third embodiment of the present invention.

[0048] Fig. 24 is an enlarged plan view of the stern portion of a ship according to the fourth embodiment of the present invention.

[0049] Figure 25 is an enlarged cross-sectional view of the stern portion of a ship according to the fourth embodiment of the present invention.

[0050] Fig. 26 is an enlarged cross-sectional side view of the stern portion of a ship according to the fourth embodiment of the present invention.

[0051] Fig. 27 is an enlarged cross-sectional side view of the stern portion of a ship according to the fifth embodiment of the present invention.

[0052] Fig. 28 is an enlarged plan view of the stern portion of a ship according to the fifth embodiment of the present invention.

[0053] Figure 29 is a side cross-sectional view of a vessel according to the sixth embodiment of the present invention.

[0054] Figure 30 is an enlarged plan view of a portion of the cargo area of ​​a ship according to the sixth embodiment of the present invention.

[0055] Figure 31 is an enlarged perspective view of a liquefied gas processing room portion of a ship according to the sixth embodiment of the present invention.

[0056] Figure 32 is an enlarged perspective view of a portion of a cargo area of ​​a ship according to the sixth embodiment of the present invention.

[0057] Figure 33 is an enlarged cross-sectional side view of a portion of a cargo area of ​​a ship according to the sixth embodiment of the present invention.

[0058] Figure 34 is a side cross-sectional view of a vessel according to the seventh embodiment of the present invention.

[0059] Figure 35 is a plan view of a ship according to the seventh embodiment of the present invention.

[0060] Figure 36 is a cross-sectional view of a vessel according to the seventh embodiment of the present invention.

[0061] The purpose, specific advantages, and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments, taken in conjunction with the accompanying drawings. In this specification, when reference numerals are assigned to components in each drawing, it should be noted that, where possible, identical components are assigned the same reference numerals even if they appear in different drawings. Furthermore, in describing the present invention, if a detailed description of a related known technology is deemed to unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

[0062] In addition, it should be noted that the expression “prior art” in the present invention is merely a comparative example for explaining the features of the present invention, and does not necessarily mean that the content is known.

[0063] In this specification, a vessel may be a merchant vessel carrying various types of cargo. The cargo may be standardized goods or materials, such as containers. Alternatively, the cargo may be gas, a substance with a boiling point lower than room temperature and transported in a liquid form, such as LNG, LPG, ethane, methanol, ammonia, hydrogen, or CO2.

[0064] That is, the type of ship in the present invention is not limited, but the ship may be a ship that carries an unlimited type of cargo, or may be a gas carrier that carries liquefied petroleum gas or ammonia as cargo.

[0065] For example, the cargo in this example may be a gas with a boiling point of -100 degrees Celsius or higher and lower than room temperature. For convenience, the vessel will be described below as a liquefied petroleum gas carrier. Furthermore, liquefied petroleum gas may be referred to as liquefied gas or fuel, and may be in a gaseous or liquid state. In other words, despite the terms "liquefied petroleum gas" or "liquefied gas," the substance may also be in a gaseous state.

[0066] Furthermore, the ship of the present invention is a concept that includes not only a merchant ship that carries cargo, but also a cruise ship that carries people, an FSRU, FPSO, bunkering vessel, and marine plant that are moored and operated in a certain area.

[0067] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings. For reference, the longitudinal direction and the forward / backward direction of a ship are the same, the width direction of the ship is the same as the left / right direction, and the height direction of the ship is the same as the up / down direction. In addition, the deck is a part provided horizontally on the hull, and the deck can be provided at a certain height above the bottom of the hull. In other words, the height of the deck hereinafter refers to the height in the up / down direction based on the bottom (base line). However, the deck may be in the form of an overall flat surface or an inclined surface. In the latter case, the height of the deck refers to any one of the average height, the minimum height, or the maximum height.

[0068]

[0069] Fig. 1 is a side cross-sectional view of a vessel according to a first embodiment of the present invention. Fig. 2 is a plan view of a vessel according to a first embodiment of the present invention. Fig. 3 is a plan cross-sectional view of a vessel according to a first embodiment of the present invention. Fig. 4 is a front cross-sectional view of a vessel according to a first embodiment of the present invention.

[0070] Referring to FIGS. 1 to 4, a vessel according to a first embodiment of the present invention includes a hull (1). The hull (1) is a structure forming the outer surface of the vessel and is formed in a form that is long in length and relatively small in width and height. The hull (1) can be divided into an interior and an exterior, and cargo, an engine, etc. are provided inside the hull (1). In addition, a cabin (30), an engine casing (21), propulsion equipment, mooring equipment, and various other equipment or electrical equipment can be provided outside the hull (1).

[0071] In the present invention, the vessel may be divided into a cargo area (C), a bow area (F), and a stern area (A). These areas encompass both the interior and exterior of the hull (1), and may also encompass other structures or equipment added to the hull (1). The cargo area (C), bow area (F), and stern area (A) may be longitudinally divided sections of the vessel of the present invention. Below, the features of the present invention will be described in detail for each area.

[0072] The cargo area (C) stores cargo. The cargo area (C) may refer to the approximate central portion of the hull (1). The hull (1) has the largest longitudinal cross-section at the central portion, and the cross-section may be reduced at the forward and aft portions. In this case, the cargo area (C) may include the central portion of the hull (1) whose longitudinal cross-section is constant in the forward and backward directions.

[0073] Furthermore, the cargo area (C) may further include at least a portion of the forward and aft portions of the hull (1) whose normal cross-sections are somewhat reduced. For example, the forward portion of the cargo area (C) may have a shape with a smaller normal cross-section than the other portions.

[0074] As previously described, the cargo area (C) can store various types of cargo without limitation. However, in the present embodiment, if the ship is a liquefied petroleum gas carrier, the cargo area (C) can store liquefied petroleum gas. For this purpose, a liquefied gas storage tank (10) may be provided in the cargo area (C). The liquefied gas storage tank (10) may be accommodated inside the hull (1) in the cargo area (C). A plurality of liquefied gas storage tanks (10) are provided in the longitudinal direction of the hull (1), and adjacent liquefied gas storage tanks (10) in the front and rear may be spaced apart from each other by bulkheads.

[0075] The liquefied gas storage tank (10) may be provided so as to be surrounded on all sides by the hull (1), and a ballast tank and a pipe duct (36) may be provided at the lower part of the liquefied gas storage tank (10) in the hull (1). In addition, the ballast tank may be provided so as to surround the left and right sides of the liquefied gas storage tank (10) in the hull (1). A fuel line, which will be described later, may be provided in the pipe duct (36), and the fuel passing through the pipe duct (36) may be a substance having a boiling point higher than room temperature, unlike the liquefied gas that is the cargo. Therefore, the fuel line in the pipe duct (36) may be of a type that does not require significant insulation.

[0076] A passageway (60) for workers to move may be provided on the upper part of the liquefied gas storage tank (10) in the hull (1). In addition, the upper surface of the liquefied gas storage tank (10) may be referred to as an inner deck, and an exposed deck exposed to the outside is provided on the upper part of the inner deck.

[0077] The liquefied gas storage tank (10) may have an octagonal cross-section to maximize the volume by considering the cross-sectional shape of the hull (1). In this case, the exposed deck may also be provided to correspond to the polygonal structure of the upper part of the liquefied gas storage tank (10). The liquefied gas storage tank (10) is provided with a dome to allow the outflow or inflow of liquefied gas and evaporation gas, etc., and the dome may penetrate both the inner deck and the trunk deck so that the upper part is exposed to the outside.

[0078] The upper deck is a portion of the hull (1) that is exposed to the outside, and may be an upper surface that divides the interior and exterior of the hull (1). The upper deck may be provided above a cargo storage space formed within the hull (1), but the upper deck may not directly constitute the upper surface of the cargo storage space. In other words, the cargo storage space and the upper deck may be spaced apart vertically to form a space that protects the cargo.

[0079] The upper deck may be equipped with equipment for loading or unloading cargo. Additionally, the exposed deck may be equipped with additional facilities for cargo handling. For example, if the cargo is liquefied petroleum gas, the upper deck may be equipped with a manifold (50) for cargo transfer. The manifold (50) is located in the central portion of the hull (1) to facilitate connection to the port's transfer arm when the vessel approaches a port.

[0080] The manifold (50) is provided in a form capable of transporting both gaseous and liquid phases of liquefied gas, and may have a form in which gaseous lines and liquid lines are provided alternately. The manifold (50) may be provided with at least three lines in the forward and backward direction, and gaseous lines and liquid lines may be configured in accordance with the arrangement of the transfer arm of the port.

[0081] The manifold (50) may be provided in a form extending from the upper deck to both left and right ends. The manifold (50) may be bent downward from the outside of the upper deck in the width direction to have a height that connects to an external transfer arm, and may extend left and right on the upper deck.

[0082] The manifold (50) can communicate the liquefied gas storage tank (10) and the transfer arm, and for this purpose, the manifold (50) can be connected to a liquefied gas line extending from the dome of the liquefied gas storage tank (10). The liquefied gas line extends forward or rearward from the dome. In the liquefied gas storage tank (10) provided rearward with respect to the manifold (50) provided in the center of the hull (1), the liquefied gas line passes through the dome and then extends forward to be connected to the manifold (50). On the other hand, in the liquefied gas storage tank (10) provided forward of the manifold (50) provided in the center of the hull (1), the liquefied gas line passes through the dome and then extends rearward to be connected to the manifold (50). In other words, the manifold (50) integrally connects a plurality of liquefied gas storage tanks (10) provided in the front-back direction.

[0083] On the upper deck, a vent mast may be provided to discharge liquefied gas discharged from a liquefied gas storage tank (10) into the atmosphere. At least one vent mast may be assigned to each liquefied gas storage tank (10). In the cargo area (C) of the present embodiment, a total of four liquefied gas storage tanks (10) may be provided, and a total of four vent masts may also be provided.

[0084] When two liquefied gas storage tanks (10) are provided at the rear and front of the manifold (50), two vent masts may be provided at the rear and front of the manifold (50), respectively. The vent masts may be provided at the central portion in the width direction on the upper deck, and may have a height greater than a certain level to protect workers located on the upper deck. That is, the vent masts are designed to discharge liquefied gas at a height greater than a certain level so that the liquefied gas discharged from the vent masts does not threaten workers.

[0085] The vent mast can discharge liquefied gas to the outside when the safety valve opens when the internal pressure of the liquefied gas storage tank (10) becomes excessive. Alternatively, the vent mast can discharge liquefied gas flowing between the liquefied gas storage tank (10) and the manifold (50) to the outside as needed.

[0086] The liquefied gas processing room (15) can accommodate a compressor for compressing liquefied gas, a motor for operating the compressor, and a condenser or heater for cooling or heating the liquefied gas.

[0087] When a liquefied gas storage tank (10) is installed, a configuration that handles processing such as re-liquefaction of the liquefied gas and fuel supply needs to be provided. These configurations are formed as a liquefied gas processing room (15), and the liquefied gas processing room (15) is provided on the deck.

[0088] The liquefied gas processing room (15) can accommodate a compressor for compressing liquefied gas, a motor for operating the compressor, and a condenser or heater for cooling or heating the liquefied gas.

[0089] An engine casing (21) is provided on the stern deck that divides the exterior and interior of the hull (1) in the stern area (A) described later. However, if a cabin (30) is additionally provided on the stern deck, the space in the stern area (A) is not sufficient, so the liquefied gas processing room (15) may be placed on the upper deck of the cargo area (C).

[0090] However, in the present invention, the cabin (30) is located in the bow area (F) rather than the stern area (A). This will be described in detail below. Through this feature, the present invention secures sufficient space for the liquefied gas fuel tank (40) to be located on the stern deck.

[0091] Fuel tanks can store fuel for use in generators, engine rooms, and other areas. The fuel can be a different substance than the liquefied gas stored in the cargo area (C), with a boiling point higher than room temperature. For example, the fuel can be an oil fuel, such as HFO or MGO. Therefore, fuel tanks can be designed to isolate a specific space without separate insulation. However, the inner walls of the fuel tank may be coated to prevent corrosion or other contamination.

[0092] Of course, the fuel tank may also store liquefied gas, similar to cargo, in which case the fuel tank may be insulated. Alternatively, the fuel tank may be a standalone pressurized tank that is manufactured separately externally and then installed inside the hull (1) to store fuel at high pressure.

[0093] The bow area (F) is provided forward of the cargo area (C). The bow area (F) may include the bow portion of the hull (1) and encompasses the forward portion based on the ship's direction of travel. In the bow area (F), the hull (1) has a shape in which the width rapidly narrows toward the front. Therefore, unlike the cargo area (C), the bow area (F) has relatively narrow spaces both inside and outside the hull (1).

[0094] In the bow area (F), the front of the hull (1) may be provided with a bulbous bow. Furthermore, the front of the hull (1) is the bow facing the waves, and its shape can determine resistance according to ship speed. The upper portion of the bulbous bow at the front of the hull (1) may have a shape that recedes from top to bottom. Alternatively, the front of the hull (1) may have a vertical shape.

[0095] The bow area (F) may be provided with a bow deck that divides the interior and exterior of the hull (1). In particular, according to the present invention, a cabin (30) is provided on the bow deck. At this time, the cabin (30) may include a wheelhouse (31), and together with the wheelhouse (31), includes a living room.

[0096] The bow deck has a relatively lower height than the upper deck formed in the cargo area (C). That is, the bow area (F) can accommodate an additional height of the cabin (30) equal to the height by which the bow deck is lowered from the upper deck. Since the lower surface of the cabin (30) is separated upward from the bow deck only by the height necessary for the use of mooring equipment, the upper surface of the cabin (30) can be lowered by lowering the bow deck itself.

[0097] At this time, the wheelhouse (31) may be a space equipped with equipment for controlling the operation of the ship. However, if autonomous navigation is applied to the ship of the present invention, the equipment placed inside the wheelhouse (31) and the size of the wheelhouse (31) may be changed.

[0098] The living quarters may be spaces where workers perform various tasks onboard the vessel. In addition to the spaces where workers reside, the living quarters encompass all areas where workers rest, work, and eat. In other words, the living quarters may be configured to include all spaces where workers can reside, other than the wheelhouse (31). If autonomous navigation is applied to the vessel of the present invention, the living quarters may be minimized or omitted.

[0099] In the case of conventional liquefied gas carriers, it was common for cabins (30) such as a wheelhouse (31) to be provided at the stern. However, unlike the conventional case, the present invention arranges cabins (30) on the bow deck in the bow area (F), thereby increasing the space utilization of the stern area (A) and cargo area (C).

[0100] In addition, since the cabin (30) is arranged in the bow area (F), there is no blind spot due to the hull (1) when looking forward from the wheelhouse (31). In the conventional case where the cabin (30) is arranged at the stern, a blind spot is created due to the length of the hull (1) in front of the cabin (30), and there is a risk of an accident due to this. On the other hand, the present invention provides the cabin (30) on the bow deck so that when looking forward from the wheelhouse (31) of the cabin (30), there is no part blocked by the hull (1), thereby minimizing the risk of collision during operation.

[0101] The bow deck, like the shape of the hull (1), has a shape that narrows toward the front, and may have a convex curve toward the front. Furthermore, the bow deck must be equipped with mooring equipment for mooring the vessel, and securing mooring space is necessary. Therefore, the bow deck does not have sufficient floor space to accommodate cabins (30), such as the wheelhouse (31) and living quarters.

[0102] When it is desired to place a cabin (30) on a bow deck where there is insufficient free space, there is a method of securing the required area of ​​the cabin (30) by increasing the number of floors of the cabin (30). However, in this case, there is a problem that the air resistance caused by the cabin (30) is considerable.

[0103] Therefore, the present invention proposes a method for ensuring the required area of ​​the cabin (30) and securing sufficient mooring space while minimizing air resistance caused by the cabin (30) placed in the player area (F).

[0104] Specifically, the present invention has a cabin (30) provided on the upper part of the bow deck, and has a cross-section in which the width of the cabin (30) decreases toward the forward side of the bow. At this time, the width of the cabin (30) decreases nonlinearly toward the forward side of the bow, so that the front of the cabin (30) may have a curved shape, or the width of the cabin (30) may decrease like steps toward the forward side of the bow. Alternatively, the width of the cabin (30) may decrease linearly toward the forward side of the bow, but the slope of the decrease in width may vary at certain portions, so that the front of the cabin (30) may have a polygonal shape.

[0105] That is, the cabin (30) of the present invention can be provided in a bullet type, having a cross-section similar to the bow deck, rather than in the rectangular shape provided at the stern. Through this, the present invention can minimize air resistance caused by the cabin (30).

[0106] The cabin (30) includes a wheelhouse (31) and a living room, and the living room is arranged below the wheelhouse (31). Based on the wheelhouse (31), the floor can be defined as the steering deck, and the ceiling can be defined as the compass deck, and the living room can be arranged below the steering deck. The compass deck can be exposed to the outside while forming the upper surface of the cabin (30). Of course, some living space can also be formed above the steering deck. In other words, the function / use of the wheelhouse (31) and the living room are not necessarily limited according to the terms.

[0107] The living quarters of the cabin (30) may include decks A through B, etc., depending on the number of floors. In this case, the size of deck B is formed relatively smaller than deck A. In addition, the steering deck may have a smaller size than the deck of the living quarters. The lower part of the cabin (30) forming the living quarters may have a cross-sectional area that decreases as it goes upward, while conversely, the upper part of the cabin (30) forming the steering room (31) may have a cross-sectional area that increases as it goes upward. In other words, the cabin (30) may have a front end in the shape of the letter '<' when viewed from the side.

[0108] Moreover, the cabin (30) may have a form in which the upper part forming the wheelhouse (31) is set back compared to the lower part forming the living space. That is, the lower part forming the living space in the cabin (30) and the upper part forming the wheelhouse (31) are connected vertically with a step difference based on the steering deck. In this case, at least a portion of the perimeter of the steering deck is exposed to the outside. At this time, the angle looking downward from the wheelhouse (31) may be partially limited by the steering deck forming the upper surface of the living space, but since the cabin (30) is arranged on the bow deck, even if the downward movement of the visibility line is partially limited by the steering deck, it goes without saying that the blind spot compared to the past can be innovatively eliminated.

[0109] Additionally, the wheelhouse (31) can be protected by a living quarters that protrudes further forward. For example, when waves are present on the bow deck during operation, the waves can be broken by the living quarters and not hit the wheelhouse (31). In particular, the lower portion of the cabin (30) has a forward convex shape, so that the front of the cabin (30) can perform the function of cutting through waves, much like the bow of the hull (1).

[0110] However, at least the front of the lower part of the cabin (30) may be reinforced in structure and material compared to the upper part of the cabin (30) to prepare for impact from waves. For example, a window provided in the front of the lower part of the cabin (30) may be made of tempered glass with a higher strength than that used for the window of the wheelhouse (31), and the thickness of the metal structure forming the front of the lower part of the cabin (30) may be relatively greater than the thickness of the metal structure forming the front of the upper part of the cabin (30).

[0111] When the wheelhouse (31), which is the upper part of the cabin (30), is retracted compared to the living quarters, which are the lower part of the cabin (30), the steering deck exposed to the outside can be connected to the wing bridge. Accordingly, workers in the wheelhouse (31) move to the wing bridge via the steering deck. For this purpose, the steering deck can be arranged parallel to the upper surface of the wing bridge. In addition, escape equipment for workers' escape can be arranged on both sides of the cabin (30), and the steering deck exposed to the outside can enable access to the escape equipment.

[0112] The lower part forming the living room can have a slope in which the front end recedes from the bottom to the top when viewed from the side, while the upper part forming the wheelhouse (31) can have an opposite slope. That is, the upper part forming the wheelhouse (31) in the cabin (30) can have a slope in which the front end advances from the bottom to the top when viewed from the side.

[0113] Nonetheless, the front end of the wheelhouse (31) may be located further back than the front end of the living quarters. That is, the front-to-rear step between the upper part forming the wheelhouse (31) and the lower part forming the living quarters in the cabin (30) may be greater than the front-to-rear length along which the front end of the wheelhouse (31) is inclined.

[0114] Such a cabin (30) may have a lower area projected to more than 70% of the bow deck. Therefore, the present invention can secure the required area of ​​the cabin (30) even though the area of ​​the bow deck is relatively narrow.

[0115] However, if the cabin (30) covers most of the bow deck, securing mooring space becomes a problem. To this end, the cabin (30) is installed so as to be spaced upward relative to the bow deck. In other words, the cabin (30) can be structured so that its lower surface is spaced upward from the bow deck through support, thereby forming a piloti structure.

[0116] The height at which the lower surface of the cabin (30) is spaced above the bow deck is determined by taking into consideration the size of the mooring equipment and the height required for maintenance of the mooring equipment. For example, the height may be 4.7 m or more.

[0117] The support may be arranged so as not to interfere with the use of mooring equipment. That is, the support may be arranged so as to maximize the opening between the lower surface of the cabin (30) and the bow deck. For example, the support may be arranged at the front of the cabin (30).

[0118] Since the cabin (30) is provided in a form that covers almost the entirety of the bow deck, the support can vertically connect the front end of the bow deck and the front end of the cabin (30). In particular, the support can support the cabin (30) using a bulwark provided around the perimeter of the bow deck.

[0119] In the bow area (F), a bulwark may be installed forward of the bow deck. The bulwark is designed to encircle the forward portion of the bow deck and has a flat cross-section with a convex curve facing forward, conforming to the shape of the bow deck. The bulwark prevents waves from entering the bow deck during operation. The bulwark may also have a structure through which mooring lines can pass.

[0120] Such bulwarks may be formed on a portion of the forward deck, with the lower portion of the support being provided on the bulwark and the upper portion connected to the lower portion of the cabin (30). Since the lower portion of the cabin (30) forms a living space, the upper portion of the support may be provided to support the lower surface of the living space. In particular, the supports may be provided in pairs so as to extend from both ends of the curved bulwark to the lower surface of the cabin (30).

[0121] The lower surface of the cabin (30) is made smaller than the area of ​​the bow deck, and the perimeter of the lower surface of the cabin (30) can be set back from the perimeter of the bow deck, so the support connecting the bulwark and the cabin (30) can have a shape in which the upper surface is inclined backward compared to the lower surface when viewed in plan.

[0122] Additionally, the support may have a shape in which the upper part is inclined backwards compared to the lower part when viewed from the side, thereby enabling the present invention to prevent the lower part of the support from blocking the view for mooring.

[0123] Therefore, when workers use mooring equipment placed on the bow deck, the space on the bow deck is only covered by the cabin (30) above, and the surrounding area is open except for the support. Through this, the present invention can reduce air resistance caused by the cabin (30) while arranging the cabin (30) on the bow deck to a sufficient size, thereby ensuring the efficiency of mooring operations.

[0124] A pair of supports forms a bow opening surrounded by the lower surface of the cabin (30) and the bow deck, and the mooring line of the mooring equipment passes through the bow opening. The bow opening has a size and shape that is as open as possible through the arrangement and shape of the supports, thereby enabling easy mooring by workers.

[0125] Furthermore, the present invention can further reduce air resistance by lowering the maximum height of the cabin (30). The height of the cabin (30) can be minimized by sizing and shaping the cross-section of the cabin (30) itself to cover most of the bow deck, and additionally, the bow area (F) can obtain the effect of lowering the upper part of the cabin (30) by lowering the bow deck itself.

[0126] The stern area (A) is provided aft of the cargo area (C). The stern area (A) may include the stern portion of the hull (1) and encompasses the rear portion based on the ship's direction of travel. In the stern area (A), the hull (1) may have a shape that slightly narrows toward the rear, but it is also possible for the hull (1) not to narrow.

[0127] However, even though the width of the hull (1) in the stern area (A) becomes narrower as it goes rearward, the degree to which the width of the hull (1) is reduced in the stern area (A) may be relatively smaller compared to the bow area (F). Therefore, unlike the bow area (F) which has a sharp front end, the stern area (A) may have a shape in which the rear end is cut in the width direction.

[0128] In the stern section (A), a propeller for propulsion is provided at the rear of the hull (1). A rudder may also be provided at the rear of the propeller to control the vessel's direction of travel. Additionally, energy-saving devices may be installed at the rear of the propeller or forward of the rudder to improve propulsion efficiency.

[0129] The stern area (A) may be provided with a stern deck that divides the interior and exterior of the hull (1). Furthermore, the stern deck may be provided with equal heights in the forward and aft sections. The aft section of the stern deck may be provided with mooring equipment as described for the bow deck, forming a sunken deck.

[0130] The forward and aft portions of the stern deck can be distinguished by the rear of the engine casing (21) provided on the stern deck. For convenience of explanation, the stern deck may refer to the forward portion from the stern deck, unless otherwise specified.

[0131] An engine casing (21) is mounted on the stern deck, and the rear of the engine casing (21) may be parallel to the rear end of the stern deck. The engine casing (21) is provided on the outside of the hull (1) and discharges exhaust from the engine room, which will be described later. A chimney is provided in the center of the engine casing (21) in the left and right directions. The chimney is a configuration that discharges exhaust from the engine room and may be referred to as a funnel. The chimney can accommodate an exhaust pipe that discharges exhaust extending from the engine room. Of course, the chimney may also be provided in a location other than the center of the engine casing (21).

[0132] To protect workers on the stern deck, the stack discharges exhaust into the atmosphere above a certain height. Therefore, the exhaust from the stack does not flow to the stern deck, but instead escapes aft as the ship moves.

[0133] The engine casing (21) may include exhaust treatment equipment that treats exhaust gas emitted from the engine room to satisfy various environmental regulations applicable to the exhaust of a ship. The exhaust treatment equipment purifies at least one of the exhaust gas of the engine room and the exhaust gas of the combustion equipment, and may include a selective catalytic reduction equipment that reduces pollutants contained in the exhaust gas. Alternatively, the exhaust treatment equipment may further include a filter that removes particles contained in the exhaust gas, a scrubber that washes the exhaust gas with seawater, etc. Furthermore, the exhaust treatment equipment may include an exhaust recirculation equipment that improves the condition of exhaust gas to be emitted in the future, rather than a device that directly purifies exhaust gas already emitted.

[0134] Referring to FIGS. 1 to 3, a cargo area (C) of a ship according to the first embodiment of the present invention is provided with a first storage tank (11), a second storage tank (12), a third storage tank (13), and a fourth storage tank (14) for storing liquefied gas, and a liquefied gas processing room (15) and a dry powder room (17) for fire suppression may be provided at the top of the fourth storage tank (14).

[0135] In the bow section (F) of the ship according to the first embodiment of the present invention, a cabin (30) including a wheelhouse (31) is provided, and a spare space (32) and an underdeck store (33) behind the spare space (32) can be provided at the lower part of the bow deck.

[0136] Additionally, a first ballast tank (34) may be provided at the bottom of the underdeck store (33), and a pump room (35) may be provided below the front of the first ballast tank (34).

[0137] Meanwhile, in the cargo area (C), a 2-1 ballast tank (41) surrounding the 1st storage tank (11), a 2-2 ballast tank (42) surrounding the 2nd storage tank (12), a 2-3 ballast tank (43) surrounding the 3rd storage tank (13), and a 2-4 ballast tank (44) surrounding the 4th storage tank (14) may be provided.

[0138] In the stern area (A) of the ship according to the first embodiment of the present invention, an engine room (20) may be provided below the stern deck, and an engine casing (21) and a plurality of liquefied gas fuel tanks (40) may be provided on both sides of the engine casing (21) at the upper part of the stern deck.

[0139] Additionally, an emergency generator room (22) and a deck store (23) below the emergency generator room (22) are provided in front of the engine casing (21), and an engine room ballast tank (24) may be provided in the front end inside the engine room (20).

[0140] At the rear of the engine room (20), an element storage room (27) is provided on the central side, a first fresh water tank (25) and a second fresh water tank (26) at the rear of the first fresh water tank (25) are provided on one side of the element storage room (27), and a carbon dioxide room (28) may be provided on the other side of the element storage room (27).

[0141] Referring to Fig. 4, the first liquefied gas storage tank (10) may be provided with a dome (111) at the top and a pipe duct (36) at the bottom. The second-first ballast tank (41) may be provided to surround the bottom and a portion of the side of the first liquefied gas storage tank (10).

[0142]

[0143] Hereinafter, a vessel according to the first embodiment of the present invention will be described in detail with reference to FIGS. 5 to 9. Furthermore, the description of the vessel according to the first embodiment of the present invention described in FIGS. 1 to 4 may be equally applied to vessels according to the remaining embodiments of the present invention (the second to seventh embodiments) described below, unless otherwise specifically stated.

[0144] Figure 5 is an enlarged cross-sectional side view of the stern portion of a ship according to the first embodiment of the present invention.

[0145] Referring to FIG. 5, a ship according to the first embodiment of the present invention includes a hull (1) that accommodates a liquefied gas storage tank (10) and an engine room (20) provided at the stern of the hull (1) that accommodates a propulsion engine.

[0146] The hull (1) can be formed without steps on the upper deck (101) of the cargo area (C) that accommodates the liquefied gas storage tank (10).

[0147] The upper deck (101) can extend in the longitudinal direction of the hull (1) along the arrangement direction of a plurality of liquefied gas storage tanks (10) provided in the cargo area (C).

[0148] The upper deck (101) may be provided with an incline that tilts on both sides based on the center side where the dome of the liquefied gas storage tank (10) is provided when looking at the hull (1) from the front.

[0149] The hull (1) is provided above the engine room (20) and may have a stern deck (102) positioned lower than the upper deck (101) to form a step with the upper deck (101).

[0150] The stern deck (102) is provided to have a step with the upper deck (101) when the hull (1) is viewed from the side, and can be provided in a form that extends from the lower part of the upper deck (101) to the rear end of the hull (1).

[0151] As the height of the engine room (20) located below the stern deck (102) is lowered, the stern deck (102) can have a step with the upper deck (101) and be located below the upper deck (101).

[0152] A vessel according to the first embodiment of the present invention may include a hull (1), an engine room (20), and an engine casing (21).

[0153] The engine casing (21) is provided at the stern of the hull (1), but is provided on the upper side of the engine room (20) so as to discharge the exhaust of the propulsion engine.

[0154] The engine casing (21) may be arranged on the stern deck (102), and the rear of the engine casing (21) may be arranged parallel to the rear of the engine room (20).

[0155] The engine room (20) can be arranged so that its upper surface is parallel to the stern deck (102).

[0156] The engine casing (21) can be positioned with its front end forward of the rear end of the engine room ballast tank (24).

[0157] An emergency generator room (22) and a deck store (23) can be provided at a distance from each other in front of the engine casing (21).

[0158] The emergency generator room (22) can be arranged so that the rear is parallel to the rear of the deck store (23).

[0159] The emergency generator room (22) is placed above the deck store (23), but the front end may be provided behind the front end of the deck store (23).

[0160] The top of the engine casing (21) can be arranged to be higher than the top of the emergency generator room (22).

[0161] In a vessel according to the first embodiment of the present invention, a large deck (103) equipped with mooring equipment may be provided at the rear end of the stern deck (102).

[0162] The stern deck (102) can be connected to the rear end of the sunken deck (103) in a flat plane without steps.

[0163] That is, the stern deck (102) and the sunken deck (103) can be formed at the same height without a step.

[0164] A first fresh water tank (25), a second fresh water tank (26), an element storage room (27), a propeller, etc. may be provided at the lower part of the large deck (103).

[0165] The front end of the first clear water tank (25) can be arranged parallel to the front end of the sunken deck (103).

[0166] The second fresh water tank (26) may be provided at the rear of the first fresh water tank (25), but may be provided so as to be spaced apart from the rearmost end of the hull (1).

[0167] The element storage room (27) can be provided below the first fresh water tank (25) and the second fresh water tank (26) when looking at the hull (1) from the side.

[0168] The front end of the element storage room (27) can be arranged parallel to the front end of the large deck (103).

[0169] The front of the first fresh water tank (25) and the element storage room (27) can be arranged adjacent to the rear of the engine room (20).

[0170] Fig. 6 is an enlarged plan view of a manifold area of ​​a vessel according to the first embodiment of the present invention. Fig. 7 is an enlarged cross-sectional view of a portion of a manifold area of ​​a vessel according to the first embodiment of the present invention.

[0171] Referring to Fig. 6, a manifold area (M) may be provided in the cargo area (C) that is partitioned in the middle portion of the cargo area (C).

[0172] The manifold area (M) may be arranged adjacent to the second storage tank (12) and the third storage tank (13).

[0173] The manifold area (M) can be provided above the third storage tank (13) at the rear of the second storage tank (12).

[0174] Referring to Fig. 7, the manifold area (M) may include a recessed deck that is sunken more than the upper deck (101). For reference, Fig. 7 is a drawing showing a cross-section of the circled portion of Fig. 6.

[0175] In the manifold area (M), the manifold (50) is provided above the upper deck (101) and the recess deck, and may be provided in the form of a pipe extending outward from the center of the upper deck (101) toward a part of the recess deck.

[0176] The manifold (50) can load or unload liquefied gas through a pipe connected to the liquefied gas storage tank (10).

[0177] The recessed deck may include a vertical portion (121), a horizontal portion (122), and an inclined portion (123).

[0178] The vertical section (121) can be bent and connected to both ends of the upper deck (101).

[0179] The horizontal section (122) has a connecting end (51) of a manifold (50) connected to the outside and can be connected to the outer side plate (104).

[0180] The inclined portion (123) can connect the vertical portion (121) and the horizontal portion (122) at an angle.

[0181] The manifold (50) extends horizontally from the upper deck (101) and can be bent to extend vertically along the vertical portion (121).

[0182] The manifold (50) extends horizontally from the top of the vertical section (121), and after passing the inclined section (123), is bent and extends vertically, but a connecting end (51) may be provided at the bottom so as to be arranged toward the side plate (104).

[0183] A vessel according to the first embodiment of the present invention may further include a topside wing tank (124) provided at a point where the recessed deck and the side shell plating (104) meet.

[0184] The topside wing tank (124) can be installed so that ballast water is filled at the point where the top of the side shell (104) and the side edge of the upper deck meet.

[0185] The topside wing tank (124) can be formed so that the portion where the recessed deck is provided is sunken.

[0186] The topside wing tank (124) may be provided with a portion where the upper surface is connected to the upper deck (101), a vertical portion (121), an inclined portion (123), and a horizontal portion (122), and a portion where the side is connected to the outer shell (104).

[0187] The vertical portion (121) and the horizontal portion (122) can be provided on the outer surface of the top side wing tank (124).

[0188] The slope (123) can be provided as a separate slope member on the outer surface of the top side wing tank (124).

[0189] The horizontal portion (122) can be inclined downward from the inner end connected to the inclined portion (123) toward the outer side plate (104).

[0190] The inclined portion (123) is connected to the vertical portion (121) and the horizontal portion (122) at an obtuse angle and may have an incline parallel to the bottom surface of the topside wing tank (124).

[0191] That is, the inclined portion (123) is designed to have a greater incline than the horizontal portion (122), thereby securing a distance at which the manifold (50) is separated from the upper surface of the topside wing tank (124).

[0192] Figure 8 is an enlarged cross-sectional side view of the bow portion of a ship according to the first embodiment of the present invention.

[0193] Referring to Fig. 8, a ship according to the first embodiment of the present invention has a cabin (30) including a wheelhouse (31) provided at the bow of the hull (1).

[0194] The cabin (30) is provided on the bow deck (105) at the front of the hull (1), and the wheelhouse (31) can be provided on the top floor of the cabin (30).

[0195] The player deck (105) may be positioned lower than the upper deck (101) to form a step with the upper deck (101). For example, the step may be formed to be approximately 4.7 meters.

[0196] A piloti structure is provided on the central side of the bow deck (105), and mooring equipment and bulwarks arranged around the perimeter of the bow deck (105) can be provided in front of the piloti structure.

[0197] The cabin (30) is spaced upward from the bow deck (105) so that the lower surface of the cabin (30) can be supported by a piloti structure.

[0198] The lower surface of the cabin (30) can be arranged parallel to the upper deck (101).

[0199] That is, a piloti structure is provided between the player deck (105) and the cabin (30), and the piloti structure can support the cabin (30).

[0200] Below the bow deck (105), a spare space (32), an underdeck store (33), a first ballast tank (34), and a pump room (35) may be provided.

[0201] The spare space (32) and underdeck store (33) can be arranged with their upper surfaces parallel to the bow deck (105).

[0202] The first ballast tank (34) may be provided below the underdeck store (33).

[0203] In the bow of the hull (1), a liquefied gas fuel tank (71) may be provided at the lower part of the bow deck (105).

[0204] The first ballast tank (34) may be arranged to surround at least a portion of the liquefied gas fuel tank (71).

[0205] The liquefied gas fuel tank (71) can be placed on the central side of the first ballast tank (34).

[0206] The pump room (35) is provided in front of the first ballast tank (34), but the lower part may be provided in parallel with the lower part of the first ballast tank (34).

[0207] The pump room (35) can be arranged so that the front is parallel to the rear of the reserve space (32).

[0208] The first ballast tank (34) may be arranged so that the rear is parallel to the rear of the underdeck store (33) and the rear of the cabin (30).

[0209] Figure 9 is an enlarged cross-sectional side view of the cargo area of ​​a ship according to the first embodiment of the present invention.

[0210] Referring to Fig. 9, in the cargo area (C), a second ballast tank surrounding the liquefied gas storage tank (10) may be provided on the left and right sides of the liquefied gas storage tank (10).

[0211] The second ballast tank may be provided with multiple isolated spaces in the forward and backward direction of the hull (1).

[0212] The cargo area (C) can be divided into multiple sections in the forward and backward direction of the hull (1) by transverse bulkheads (130).

[0213] The second ballast tank can be divided into multiple spaces by a transverse bulkhead (130).

[0214] The second ballast tank can be divided into multiple spaces by an auxiliary bulkhead (140) that is arranged so as not to overlap the transverse bulkhead (130).

[0215] For example, the first storage tank (11), the second storage tank (12), the third storage tank (13), and the fourth storage tank (14) can be placed in a space partitioned by the first transverse bulkhead (131), the second transverse bulkhead (132), and the third transverse bulkhead (133).

[0216] For example, the 2-1 ballast tank (41) may be arranged to surround the 1st storage tank (11), the 2-2 ballast tank (42) may be arranged to surround the 2nd storage tank (12), the 2-3 ballast tank (43) may be arranged to surround the 3rd storage tank (13), and the 2-4 ballast tank (44) may be arranged to surround the 4th storage tank (14).

[0217] The 2-1 ballast tank (41), the 2-2 ballast tank (42), the 2-3 ballast tank (43), and the 2-4 ballast tank (44) can be placed in a space partitioned by the first transverse bulkhead (131), the second transverse bulkhead (132), and the third transverse bulkhead (133).

[0218] The 2-1 ballast tank (41) can be divided into multiple spaces by the first auxiliary bulkhead (141).

[0219] The 2-2 ballast tank (42) can be divided into multiple spaces by the second auxiliary bulkhead (142).

[0220] The 2-3 ballast tank (43) may be arranged so as not to be divided into multiple spaces.

[0221] The 2-4 ballast tank (44) can be divided into multiple spaces by the 3rd auxiliary bulkhead (143).

[0222] The first auxiliary bulkhead (141) is provided in front of the first transverse bulkhead (131), but may be provided in front of the dome (111) of the first storage tank (11).

[0223] The second auxiliary bulkhead (142) is provided between the first transverse bulkhead (131) and the second transverse bulkhead (132), but may be provided in front of the dome (112) of the second storage tank (12).

[0224] The third auxiliary bulkhead (143) is provided at the rear of the third transverse bulkhead (133), but may be provided at the front of the dome (114) of the fourth storage tank (14).

[0225] The second ballast tank, which is divided into multiple spaces by the transverse bulkhead (130) and the auxiliary bulkhead (140), can secure buoyancy by dividing the flooded area when the hull (1) is damaged by an external impact.

[0226]

[0227] Hereinafter, a vessel according to a second embodiment of the present invention will be described with reference to FIGS. 10 to 16. The vessel according to the second embodiment of the present invention includes vessels according to Embodiments 2-1, 2-2, 2-3, 2-4, and 2-5. The following description will focus on the differences between this embodiment and the preceding embodiments, and omitted parts will be replaced with the preceding content. It should be noted that this also applies to other embodiments below.

[0228] Fig. 10 is an enlarged plan view of the stern portion of a ship according to the second embodiment of the present invention.

[0229] Referring to FIG. 10, a ship according to the second embodiment of the present invention includes a hull (1) that accommodates a liquefied gas storage tank (10), an engine room (20) provided at the stern of the hull (1) and that accommodates a propulsion engine, and a cabin (30) that is moved from the stern of the hull (1) and provided at the bow of the hull (1) and includes a wheelhouse (31).

[0230] The liquefied gas fuel tank (200) can be provided on the upper side of the engine room (20) in the hull (1).

[0231] At least a portion of the liquefied gas fuel tank (200) may be placed in the stern space (210) of the hull (1) that is created as the cabin (30) is moved to the bow of the hull (1).

[0232] A portion of the liquefied gas fuel tank (200) may be provided above the engine room (20), and the remaining portion may be provided above the liquefied gas storage tank (10).

[0233] A portion of the liquefied gas fuel tank (200) may be placed in the cargo area (C) and the remaining portion may be placed in the stern area (A).

[0234] The liquefied gas fuel tank (200) is provided in multiple units and can be placed on the left and right sides based on the dome of the liquefied gas storage tank (10) exposed upward on the upper deck (101) of the hull (1).

[0235] A plurality of liquefied gas fuel tanks (200) may be arranged in the front-rear direction of the hull (1) and arranged so that the front end is adjacent to the dome of the liquefied gas storage tank (10).

[0236] A plurality of liquefied gas fuel tanks (200) may each include a cylindrical portion (201) extending in the longitudinal direction and a spherical portion (202) closing both ends of the cylindrical portion (201).

[0237] The point where the front end of the cylindrical portion (201) and the spherical portion (202) of the liquefied gas fuel tank (200) are connected can be provided at a position that overlaps the dome in the left-right direction.

[0238] The liquefied gas fuel tank (200) can be arranged so that the center of the cylindrical portion (201) is located within the stern region (A).

[0239] That is, the center of the liquefied gas fuel tank (200) may be located further rearward than the liquefied gas storage tank (10).

[0240] A vessel according to the second embodiment of the present invention may further include an engine casing (21) provided at the stern of the hull (1) and provided on the upper side of the engine room (20) to discharge exhaust of the propulsion engine.

[0241] A plurality of liquefied gas fuel tanks (200) can be arranged parallel in the front-back direction at the front of the engine casing (21).

[0242] An emergency generator room (211) and a carbon dioxide room (212) may be provided on both sides of the engine casing (21).

[0243] The engine casing (21) can be arranged so that the rear is parallel to the rear end of the stern section (A).

[0244] A plurality of liquefied gas fuel tanks (200) can be arranged so as to be spaced apart from the front of the engine casing (21).

[0245] At the front of the engine casing (21), an engine room (20) hatch that opens and closes for entry and exit to the engine room (20) may be provided on the deck above the engine room (20).

[0246] The engine room (20) hatch can be provided on one side of the center of the hull (1).

[0247] A plurality of liquefied gas fuel tanks (200) can be placed on the left and right sides of the engine room (20) hatch.

[0248] The point where the rear end of the cylindrical portion (201) and the spherical portion (202) of the liquefied gas fuel tank (200) are connected may be provided in front of the engine room (20) hatch.

[0249] A mooring deck (230) is provided at the rear of the engine casing (21), and mooring equipment (231) can be provided on the mooring deck (230).

[0250] Fig. 11 is an enlarged plan view of the stern portion of a vessel according to the second embodiment of the present invention. Fig. 12 is an enlarged plan view of the stern portion of a vessel according to the second embodiment of the present invention.

[0251] Referring to FIG. 11, a ship according to the second embodiment of the present invention includes a hull (1) that accommodates a liquefied gas storage tank (10), an engine room (20) provided at the stern of the hull (1) and that accommodates a propulsion engine, and a cabin (30) that is moved from the stern of the hull (1) and provided at the bow of the hull (1) and includes a wheelhouse (31).

[0252] The liquefied gas fuel tank (200) can be provided on the upper side of the engine room (20) in the hull (1).

[0253] At least a portion of the liquefied gas fuel tank (200) may be placed in the stern space (210) of the hull (1) that is created as the cabin (30) is moved to the bow of the hull (1).

[0254] The entire liquefied gas fuel tank (200) can be placed above the engine room (20).

[0255] The entire liquefied gas fuel tank (200) can be placed in the stern area (A).

[0256] The liquefied gas fuel tank (200) is provided in multiple units, and can be arranged in the front-rear direction of the hull (1) so that the front end is adjacent to the rear end of the cargo area (C).

[0257] A plurality of liquefied gas fuel tanks (200) may each include a cylindrical portion (201) extending in the longitudinal direction and a spherical portion (202) closing both ends of the cylindrical portion (201).

[0258] A vessel according to the second embodiment of the present invention may further include an engine casing (21) provided at the stern of the hull (1) and provided on the upper side of the engine room (20) to discharge exhaust of the propulsion engine.

[0259] An emergency generator room (211) may be provided between a plurality of liquefied gas fuel tanks (200) in front of the engine casing (21).

[0260] The liquefied gas fuel tank (200) is provided in multiple pieces and is arranged on the left and right with the engine casing (21) in between, but can be arranged in the front-back direction of the hull (1).

[0261] The liquefied gas fuel tank (200) may be arranged so that the rear end is adjacent to the engine casing (21), and the front end is adjacent to the emergency generator room (211).

[0262] An emergency generator room (211) and a deck store (23) may be provided at the front of the engine casing (21).

[0263] The engine casing (21) can be arranged so that the rear is parallel to the rear end of the stern section (A).

[0264] The liquefied gas fuel tank (200) can be arranged so that the center of the cylindrical portion (201) is located in front of the engine casing (21).

[0265] The point where the front end of the cylindrical portion (201) and the spherical portion (202) of the liquefied gas fuel tank (200) are connected may be arranged to be located forward of the rear end of the emergency generator room (211) and the deck store (23).

[0266] The liquefied gas fuel tank (200) may be arranged so that the point where the rear end of the cylindrical portion (201) and the spherical portion (202) are connected is located further rearward than the front end of the engine casing (21).

[0267] A plurality of liquefied gas fuel tanks (200) can be arranged so as to be spaced apart from the side of the engine casing (21).

[0268] At the front of the engine casing (21), an engine room (20) hatch that opens and closes for entry and exit to the engine room (20) may be provided on the deck above the engine room (20).

[0269] The engine room (20) hatch can be provided on one side of the center of the hull (1).

[0270] A plurality of liquefied gas fuel tanks (200) can be placed on the left and right sides of the engine room (20) hatch.

[0271] The point where the rear end of the cylindrical portion (201) and the spherical portion (202) of the liquefied gas fuel tank (200) are connected may be provided at a rearward position relative to the hatch of the engine room (20).

[0272] The hull (1) has a mooring deck (230) equipped with mooring equipment at the rear end of the stern, and the mooring deck (230) can be provided at the rear of the engine casing (21).

[0273] A plurality of liquefied gas fuel tanks (200) may be arranged on a mooring deck (230) at least in part at the rear end, and the rear end may be supported by a support member (203).

[0274]

[0275] The hull (1) is connected to a portion that accommodates a liquefied gas fuel tank (200) and may have a curved portion whose width decreases toward the rear end of the hull (1).

[0276] The front end of the curved portion may be provided behind the support portion (203) that supports the rear end of the liquefied gas fuel tank (200).

[0277] In Fig. 11, the side of the ship was formed along the dotted line portion in the past, but as the front end of the curved portion is moved back compared to the past, a wide space can be secured in the stern space (210).

[0278] Referring to FIG. 12, a ship according to the 2-3 embodiment of the present invention may be provided such that the liquefied gas fuel tank (200) is extended rearward from the ship according to the 2-2 embodiment of the present invention and a portion of the tank is positioned on the mooring deck.

[0279] That is, the vessel according to the second to third embodiment of the present invention can be provided with a liquefied gas fuel tank (200) having a larger capacity.

[0280] The liquefied gas fuel tank (200) can be arranged so that the rear end is adjacent to the curved portion.

[0281] The point where the rear end of the cylindrical portion (201) and the spherical portion (202) of the liquefied gas fuel tank (200) are connected can be provided at a position that overlaps the rear of the engine casing (21) in the left-right direction.

[0282] The support member (203) is arranged in front of the mooring deck (230) and can prevent interference with the mooring equipment of the mooring deck (230) by spacing a plurality of liquefied gas fuel tanks (200) upward.

[0283]

[0284] Fig. 13 is an enlarged cross-sectional side view of the stern portion of a vessel according to the second embodiment of the present invention. Fig. 14 is an enlarged plan view of the stern portion of a vessel according to the second embodiment of the present invention.

[0285] Referring to FIG. 11, a ship according to the 2nd-4th embodiment of the present invention includes a hull (1) that accommodates a liquefied gas storage tank (10), an engine room (20) provided at the stern of the hull (1) and that accommodates a propulsion engine, and a cabin (30) that is moved from the stern of the hull (1) and provided at the bow of the hull (1) and includes a wheelhouse (31).

[0286] The liquefied gas fuel tank (200) can be provided on the upper side of the engine room (20) in the hull (1).

[0287] At least a portion of the liquefied gas fuel tank (200) may be placed in the stern space (210) of the hull (1) that is created as the cabin (30) is moved to the bow of the hull (1).

[0288] The entire liquefied gas fuel tank (200) can be placed above the engine room (20).

[0289] The entire liquefied gas fuel tank (200) can be placed in the stern area (A).

[0290] The liquefied gas fuel tank (200) may be arranged in the left and right directions of the hull (1) and may be arranged so that the front end is adjacent to the rear end of the cargo area (C).

[0291] The liquefied gas fuel tank (200) may include a cylindrical portion (201) extending in the width direction and a spherical portion (202) closing both ends of the cylindrical portion (201).

[0292] A vessel according to the second-fourth embodiment of the present invention may further include an engine casing (21) provided at the stern of the hull (1) and provided on the upper side of the engine room (20) to discharge exhaust of the propulsion engine.

[0293] The liquefied gas fuel tank (200) can be arranged in the left-right direction of the hull (1) between the engine casing (21) and the dome of the liquefied gas storage tank (10) exposed upward from the upper deck (101) of the hull (1).

[0294] The liquefied gas fuel tank (200) can be arranged parallel to the left and right in front of the engine casing (21).

[0295] An emergency generator room (211) and a carbon dioxide room (212) may be provided on both sides of the engine casing (21).

[0296] The engine casing (21) can be arranged so that the rear is parallel to the rear end of the stern section (A).

[0297] The liquefied gas fuel tank (200) can be positioned so as to be spaced apart from the front of the engine casing (21).

[0298] At the front of the engine casing (21), an engine room (20) hatch that opens and closes for entry and exit to the engine room (20) may be provided on the deck above the engine room (20).

[0299] The engine room (20) hatch can be provided on one side of the center of the hull (1).

[0300] The liquefied gas fuel tank (200) can be placed forward based on the engine room (20) hatch.

[0301] A mooring deck (230) is provided at the rear of the engine casing (21), and mooring equipment (231) can be provided on the mooring deck (230).

[0302] Fig. 15 is an enlarged cross-sectional side view of the stern portion of a vessel according to the second embodiment of the present invention. Fig. 16 is an enlarged plan view of the stern portion of a vessel according to the second embodiment of the present invention.

[0303] Referring to FIG. 11, a ship according to the 2-5 embodiment of the present invention includes a hull (1) that accommodates a liquefied gas storage tank (10), an engine room (20) provided at the stern of the hull (1) and that accommodates a propulsion engine, and a cabin (30) that is moved from the stern of the hull (1) and provided at the bow of the hull (1) and includes a wheelhouse (31).

[0304] The liquefied gas fuel tank (200) can be provided on the upper side of the engine room (20) in the hull (1).

[0305] At least a portion of the liquefied gas fuel tank (200) may be placed in the stern space (210) of the hull (1) that is created as the cabin (30) is moved to the bow of the hull (1).

[0306] The entire liquefied gas fuel tank (200) can be placed above the engine room (20).

[0307] The entire liquefied gas fuel tank (200) can be placed in the stern area (A).

[0308] The liquefied gas fuel tank (200) may be arranged in the left and right directions of the hull (1) and may be arranged so that the front end is adjacent to the rear end of the cargo area (C).

[0309] The liquefied gas fuel tank (200) may include a cylindrical portion (201) extending in the width direction and a spherical portion (202) closing both ends of the cylindrical portion (201).

[0310] A vessel according to the 2nd-5th embodiment of the present invention may further include an engine casing (21) provided at the stern of the hull (1) and provided on the upper side of the engine room (20) to discharge exhaust of the propulsion engine.

[0311] A plurality of liquefied gas fuel tanks (200) are provided, and can be arranged side by side in the front-rear direction of the hull (1) between the engine casing (21) and the dome of the liquefied gas storage tank (10) exposed upward from the upper deck (101) of the hull (1).

[0312] An emergency generator room (211) and a carbon dioxide room (212) may be provided on both sides of the engine casing (21).

[0313] The engine casing (21) can be arranged so that the rear is parallel to the rear end of the stern section (A).

[0314] The liquefied gas fuel tank (200) can be positioned so as to be spaced apart from the front of the engine casing (21).

[0315] At the front of the engine casing (21), an engine room (20) hatch that opens and closes for entry and exit to the engine room (20) may be provided on the deck above the engine room (20).

[0316] The engine room (20) hatch can be provided on one side of the center of the hull (1).

[0317] A plurality of liquefied gas fuel tanks (200) can be placed on the left and right sides of the engine room (20) hatch.

[0318] A mooring deck (230) is provided at the rear of the engine casing (21), and mooring equipment (231) can be provided on the mooring deck (230).

[0319]

[0320] Below, a vessel according to a third embodiment of the present invention will be described with reference to FIGS. 17 through 23. The following description will focus on the differences between this embodiment and the previous embodiment, and omitted portions will be replaced with the previous description. It should be noted that this also applies to other embodiments below.

[0321] Fig. 17 is an enlarged cross-sectional side view of the bow portion of a vessel according to the third embodiment of the present invention.

[0322] Referring to FIG. 17, a ship according to a third embodiment of the present invention includes a hull (1) that accommodates a liquefied gas storage tank (10) and a cabin (30) provided at the bow of the hull (1).

[0323] The cabin (30) includes a living area (320) and a steering area (310).

[0324] The living quarters (320) are supported on the bow deck (105) of the hull (1) and may have a first slope that recedes from the bottom to the top at the front.

[0325] The steering area (310) is provided above the living area (320) and may have a second slope that protrudes forward from the bottom to the top.

[0326] The residential area (320) includes a lower area (321) and an upper area (322).

[0327] The lower section (321) may have a 1-1 inclination angle relative to the deck of the hull (1).

[0328] The upper section (322) may have a 1-2 inclination angle that is relatively larger than the 1-1 angle with respect to the deck of the hull (1).

[0329] The steering area (310), lower area (321) and upper area (322) of the cabin (30) can be arranged so that the rear is parallel to each other when viewed from the side.

[0330] The steering area (310) and the upper area (322) may be arranged to be symmetrical with respect to the lower surface of the steering area (310) when viewed from the side.

[0331] The front of the steering section (310) and the front of the upper section (322) may have angles that are symmetrical from top to bottom when viewed from the side.

[0332] Since the front of the steering area (310), the front of the upper area (322), and the front of the lower area (321) have different slopes, the front of the steering area (310) and the front of the living area (320) can have a shape that is sunken toward the rear.

[0333] The front of the steering area (310) and the front of the living area (320) are smoothly connected to each other, but have a shape that is sunken toward the rear, thereby reducing wind resistance.

[0334] The front of the steering area (310) can be arranged so that the lower part is parallel to the upper part of the front of the living area (320) in the forward and backward direction.

[0335] In the residential area (320), the upper part of the front of the lower area (321) can be arranged parallel to the lower part of the front of the upper area (322) in the front-back direction.

[0336] The hull (1) can have an upper deck (101) of a cargo area (C) that accommodates a liquefied gas storage tank (10) without steps.

[0337] The cabin (30) may be provided on the bow deck (105) which is positioned lower than the upper deck (101) and forms a step with the upper deck (101).

[0338] The cabin (30) can be spaced upward from the bow deck (105) and supported by a piloti structure (330).

[0339] The lower surface of the cabin (30) can be arranged parallel to the upper deck (101).

[0340] The piloti structure (330) may have an angle in which the front protrudes forward from the top to the bottom.

[0341] The piloti structure (330) can support the lower part of the center side of the cabin (30).

[0342] That is, a piloti structure (330) is provided between the player deck (105) and the cabin (30), and the piloti structure (330) can support the cabin (30).

[0343] A plurality of crew rooms (350) can be provided at the rear of the piloti structure (330).

[0344] The multiple crew rooms (350) include a general crew room (351) used by general crew members and a Suez crew room (352) used by Suez Canal crew members.

[0345] Below the bow deck (105), a spare space (32), an underdeck store (33), a first ballast tank (34), and a pump room (35) may be provided.

[0346] The spare space (32) and underdeck store (33) can be arranged with their upper surfaces parallel to the bow deck (105).

[0347] The first ballast tank (34) may be provided below the underdeck store (33).

[0348] The pump room (35) is provided in front of the first ballast tank (34), but the lower part may be provided in parallel with the lower part of the first ballast tank (34).

[0349] The pump room (35) can be arranged so that the front is parallel to the rear of the reserve space (32).

[0350] The first ballast tank (34) may be arranged so that the rear is parallel to the rear of the underdeck store (33) and the rear of the cabin (30).

[0351] Fig. 18 is a drawing for explaining an extended area behind a cabin (30) in the bow portion of a ship according to a third embodiment of the present invention.

[0352] Referring to Fig. 18, an expansion zone (325) may be provided at the rear of the cabin (30).

[0353] The extension zone (325) has a structure that extends rearwardly from the steering zone (310) and the upper zone (322), and its interior can be connected to the steering zone (310) and the upper zone (322).

[0354] The expansion zone (325) can be supported by a support pillar (326) supported on the upper deck (101) at the rear of the lower zone (321).

[0355] The front of the expansion zone (325) can be arranged parallel to the front of the cargo zone (C) when looking at the hull (1) from the side.

[0356] The upper surface of the extension area (325) may be arranged to be connected to the upper surface of the steering area (310) when looking at the hull (1) from the side.

[0357] A support pillar (326) is provided at the rear end of the expansion area (325) and can support the upper surface of the upper deck (101) and the lower surface of the cabin (30).

[0358] The support pillar (326) can be arranged so that the rear side is parallel to the rear side of the expansion area (325) when looking at the hull (1) from the side.

[0359] Fig. 19 is an enlarged perspective view of the bow portion of a vessel according to a third embodiment of the present invention. Fig. 20 is a drawing for explaining a blocking part in the bow portion of a vessel according to a third embodiment of the present invention.

[0360] Referring to FIGS. 19 and 20, the bow deck is provided with vent equipment (341) and a blocking member (342) exposed to the outside.

[0361] Vent equipment (341) is installed on each of the left and right sides of the bow deck, but can be installed on the left and right sides based on the piloti structure (330).

[0362] Vent equipment (341) may be installed on the outside based on multiple crew rooms (350).

[0363] The vent equipment (341) may be installed at a location adjacent to the front of the cargo area (C).

[0364] The blocking part (342) is provided in the shape of the letter ‘ㄱ’ and can block the front and outside of the vent equipment (341).

[0365] The blocking member (342) may be provided in a form in which the rear end is connected to the front of the cargo area (C) and is bent inward to surround a portion of the vent equipment (341).

[0366] A staircase connecting the bow deck (105) and the upper deck (101) may be provided on the inside of the vent equipment (341).

[0367] Fig. 21 is a drawing for explaining a separation space of a piloti structure in the bow portion of a ship according to a third embodiment of the present invention. Fig. 22 is a drawing for explaining a mining section of a cabin in the bow portion of a ship according to a third embodiment of the present invention.

[0368] Referring to FIGS. 21 and 22, the cabin (30) is supported by a piloti structure (330) on the lower deck (105).

[0369] The piloti structure (330) supports the left and right sides of the cabin (30), but a separation space (331) can be formed on the central side.

[0370] A plurality of crew rooms (350) can be provided on the left and right sides of the separation space (331).

[0371] The rear of the separation space can be connected to the upper deck (101) from above.

[0372] The cabin (30) includes a mining section (323) formed by opening at least a portion of the rear.

[0373] The mining section (323) can be connected to the separation space (331) of the piloti structure (330).

[0374] The mining area (323) can be formed by opening a portion of the rear of the living area (320).

[0375] The mining unit (323) can receive light from the rear of the cabin (30) in the direction of the arrow in Fig. 22.

[0376] Light introduced into the mining unit (323) can be introduced into the space (331) from above the space (331) as shown in the direction of the arrow in Fig. 21.

[0377] Light entering the separation space (331) can enter multiple crew rooms (350).

[0378] FIG. 23 is a drawing for explaining a plurality of crew rooms and corridors provided in a piloti structure in the bow section of a ship according to a third embodiment of the present invention.

[0379] Referring to FIG. 23, the piloti structure (330) includes a plurality of crew rooms (350) provided at the rear of the bow deck (105) and a corridor (354) provided at the front of the plurality of crew rooms (350).

[0380] A plurality of crew rooms (350) are provided at the lower rear end of the living area (320) and can be arranged in the left and right directions of the hull (1).

[0381] The corridor (354) is arranged in the left and right directions of the hull (1) along the front of the multiple crew rooms (350), and a bulkhead (355) may be provided at the front.

[0382] In each of the crew rooms (350), a door (353) that opens and closes toward the hallway (354) may be provided.

[0383] The doors (353) of the multiple crew rooms (350) may be arranged to face the front of the hull (1).

[0384] The corridor (354) functions as a connecting passage between multiple crew rooms (350), and an entrance (356) connecting to the bow deck (105) may be provided at each of the left and right ends of the corridor (354).

[0385] On both sides of the multiple crew rooms (350), stairs connecting the bow deck (105) and the upper deck (101) may be provided.

[0386] Mooring equipment may be provided in front of the multiple crew rooms (350).

[0387] At the front of the bow deck (105), a bulwark may be provided along the perimeter of the bow deck (105).

[0388]

[0389] Below, a vessel according to a fourth embodiment of the present invention will be described with reference to FIGS. 24 through 26. The following description will focus on the differences between this embodiment and the previous embodiment, and omitted portions will be replaced with the previous description. It should be noted that this also applies to other embodiments.

[0390] Fig. 24 is an enlarged plan view of the stern portion of a vessel according to the fourth embodiment of the present invention. Fig. 25 is an enlarged cross-sectional view of the stern portion of a vessel according to the fourth embodiment of the present invention.

[0391] Referring to FIGS. 24 and 25, a ship according to a fourth embodiment of the present invention includes a hull (1) that accommodates a liquefied gas storage tank (10), an engine room (20) provided at the stern of the hull (1) and that accommodates a propulsion engine, a steering room (420) provided at the rear of the engine room (20) inside the hull (1) and that controls the angle of a rudder, and a carbon dioxide room (430) provided between the side shell plating (104) and the steering room (420) inside the hull (1).

[0392] A liquefied gas fuel tank (400) can be provided on the upper side of the engine room (20) in the hull (1).

[0393] At least a portion of the liquefied gas fuel tank (400) may be placed in the stern space of the hull (1) that is created when the cabin (30) is moved to the bow of the hull (1).

[0394] The entire liquefied gas fuel tank (400) can be placed above the engine room (20).

[0395] The entire liquefied gas fuel tank (400) can be placed in the stern area (A).

[0396] The liquefied gas fuel tank (400) is provided in multiple units, and can be arranged in the front-rear direction of the hull (1) so that the front end is adjacent to the rear end of the cargo area (C).

[0397] A ship according to a fourth embodiment of the present invention may further include an engine casing (21) provided at the stern of the hull (1) and provided on the upper side of the engine room (20) to discharge exhaust of the propulsion engine.

[0398] An emergency generator room (404) may be provided between a plurality of liquefied gas fuel tanks (400) in front of the engine casing (21).

[0399] The liquefied gas fuel tank (400) is provided in multiple pieces and is arranged on the left and right with the engine casing (21) in between, but can be arranged in the front-back direction of the hull (1).

[0400] The liquefied gas fuel tank (400) may be arranged so that the rear end is adjacent to the engine casing (21) and the front end is adjacent to the emergency generator room (404).

[0401] An emergency generator room (404) and a deck store (406) may be provided at the front of the engine casing (21).

[0402] The emergency generator room (404) can be placed on the upper surface of the deck store (406).

[0403] On the upper surface of the deck store (406), an entrance (408) may be provided that is connected to an access trunk that vertically connects the pipe duct (36) of the hull (1) to the front of the emergency generator room (404).

[0404] The engine casing (21) can be arranged so that the rear is parallel to the rear end of the stern section (A).

[0405] A plurality of liquefied gas fuel tanks (400) can be arranged so as to be spaced apart from the side of the engine casing (21).

[0406] At the front of the engine casing (21), an engine room (20) hatch that opens and closes for entry and exit to the engine room (20) may be provided on the deck above the engine room (20).

[0407] The engine room (20) hatch can be provided on one side of the center of the hull (1).

[0408] A plurality of liquefied gas fuel tanks (400) can be placed on the left and right sides of the engine room (20) hatch.

[0409] The hull (1) has a mooring deck (410) equipped with mooring equipment at the rear end of the stern, and the mooring deck (410) can be provided at the rear of the engine casing (21).

[0410] The hull (1) is connected to a portion that accommodates a liquefied gas fuel tank (400) and may have a curved portion (411) whose width decreases toward the rear end of the hull (1).

[0411] The front end of the curved portion (411) may be provided at a rearward position relative to the support portion that supports the rear end of the liquefied gas fuel tank (400).

[0412] A carbon dioxide room (430), a steering room (420), and a fresh water tank (440) can be provided on the mooring deck (410) at the rear of the engine casing (21) in the hull (1).

[0413] The steering room (420) can be provided on the central side inside the hull (1).

[0414] The fresh water tank (440) can be provided between the side shell (104) and the steering room (420) inside the hull (1).

[0415] It can be placed on the opposite side of the fresh water tank (440) based on the carbon dioxide room (430) and steering room (420).

[0416] The fresh water tank (440) includes a first fresh water tank (441) and a second fresh water tank (442).

[0417] The carbon dioxide room (430) can be placed in the space on the other side of the hull (1) that is created when both the first fresh water tank (441) and the second fresh water tank (442) are placed on one side of the hull (1).

[0418] For example, the balance of the ship can be secured by placing the carbon dioxide room (430) on the left side and the fresh water tank (440) on the right side based on the central steering room (420).

[0419] The front of the carbon dioxide room (430) and the front of the first fresh water tank (441) can be arranged to be parallel to the rear of the engine casing when looking at the hull (1) from the side.

[0420] The carbon dioxide room (430) is provided at the rear of the liquefied gas fuel tank (400), but may be provided at a location that does not overlap with the liquefied gas fuel tank (400).

[0421] The hull (1) may have a curved portion (411) that is connected to a portion where a liquefied gas fuel tank (400) is provided and whose width decreases toward the rear end of the hull (1).

[0422] The carbon dioxide room (430) can be arranged to extend from one point of the curved portion (411) to the rear end of the hull (1).

[0423] The rear end of the second fresh water tank (442) may be provided in front of the rear end of the carbon dioxide room (430).

[0424] The front end of the carbon dioxide room (430) and the front end of the first fresh water tank (441) can be arranged to be adjacent to the rear end of the engine casing (21).

[0425] An element storage room (450) may be provided at the center bottom of the carbon dioxide room (430) and the fresh water tank (440).

[0426] The element storage room (450) may be provided inside the steering room (420) or at the bottom of the steering room (420).

[0427] Fig. 26 is an enlarged cross-sectional side view of the stern portion of a ship according to the fourth embodiment of the present invention.

[0428] A vessel according to a fourth embodiment of the present invention includes a cabin (30) (not shown) that is moved from the stern of the hull (1) and is provided at the bow of the hull (1), and includes a wheelhouse (31).

[0429] Referring to Fig. 26, a vessel according to the fourth embodiment of the present invention further includes an auxiliary navigation room (460) provided at the stern of the hull (1).

[0430] In the auxiliary operating room (460), operation assistance for the wheelhouse (31) can be provided based on image information.

[0431] The auxiliary operating room (460) may be provided in at least a part of the interior of the steering room and the interior of the engine control room within the engine room (20).

[0432] The auxiliary steering room (460) can be provided at the center of the steering room.

[0433] The auxiliary operating room (460) can be provided in the upper part of the center of the engine room (20).

[0434] The auxiliary operating room (460) can be provided at the rear of the engine room ballast tank (24) inside the engine room (20).

[0435] For example, in FIG. 26, the auxiliary operating room (460) may be provided in a space (460a) provided inside the steering room or a space (460b) provided inside the engine room (20).

[0436] In the auxiliary operation room (460), image data collection for the wheelhouse (31), transmission and reception of control signals, and assistance in ship operation can be performed.

[0437] That is, in an emergency situation, such as when the wheelhouse (31) is inaccessible, the ship can be directly operated or operation assistance can be performed from the auxiliary operation room (460).

[0438]

[0439] Below, a vessel according to a fifth embodiment of the present invention will be described with reference to FIGS. 27 and 28. The following description will focus on the differences between this embodiment and the previous embodiment, and omitted portions will be replaced with the previous description. It should be noted that this also applies to other embodiments.

[0440] Fig. 27 is an enlarged cross-sectional side view of the stern portion of a vessel according to the fifth embodiment of the present invention. Fig. 28 is an enlarged plan view of the stern portion of a vessel according to the fifth embodiment of the present invention.

[0441] Referring to FIGS. 27 and 28, a ship according to a fifth embodiment of the present invention includes a hull (1) that accommodates a liquefied gas storage tank (10) and an engine room (20) provided at the stern of the hull (1) and that accommodates a propulsion engine.

[0442] The liquefied gas fuel tank (570) can be provided on the upper side of the engine room (20) in the hull (1).

[0443] At least a portion of the liquefied gas fuel tank (570) may be placed in the stern space of the hull (1) that is created when the cabin (30) is moved to the bow of the hull (1).

[0444] The entire liquefied gas fuel tank (570) can be placed above the engine room (20).

[0445] The entire liquefied gas fuel tank (570) can be placed in the stern area (A).

[0446] The liquefied gas fuel tank (570) is provided in multiple units, and can be arranged in the forward and backward direction of the hull (1) so that the front end is adjacent to the rear end of the cargo area (C).

[0447] The hull (1) may have a lower deck (502) that is provided above the engine room (20) and is positioned lower than the upper deck (501) that accommodates the liquefied gas storage tank (10).

[0448] The lower deck (502) may correspond to the stern deck (102) in a vessel according to another embodiment.

[0449] A ship according to a fifth embodiment of the present invention may further include an engine casing (21) provided at the stern of the hull (1) and provided on the upper side of the engine room (20) to discharge exhaust of the propulsion engine.

[0450] An emergency generator room (510) may be provided between a plurality of liquefied gas fuel tanks (570) in front of the engine casing (21).

[0451] The liquefied gas fuel tank (570) is provided in multiple pieces and is arranged on the left and right with the engine casing (21) in between, but can be arranged in the front-back direction of the hull (1).

[0452] The liquefied gas fuel tank (570) may be arranged so that the rear end is adjacent to the engine casing (21) and the front end is adjacent to the emergency generator room (510).

[0453] An emergency generator room (510) and a deck store (520) may be provided at the front of the engine casing (21).

[0454] The emergency generator room (510) can be placed spaced apart from the front of the engine casing (21).

[0455] The engine casing (21) may have its rear end positioned rearward of the rear ends of the plurality of liquefied gas fuel tanks (570), and the emergency generator room (510) may have its front end positioned rearward of the plurality of liquefied gas fuel tanks (570).

[0456] A deck store (520) may be provided at a point where the lower deck (502) is connected to the upper deck (501) in a step manner.

[0457] The emergency generator room (510) can be placed on the upper surface of the deck store (520).

[0458] The emergency generator room (510) can be provided on the upper side of the deck store (520).

[0459] The deck store (520) may be arranged so that the rear end corresponds to the rear end of the emergency generator room (510) when looking at the hull (1) from the side.

[0460] When looking at the hull (1) from the side, the front end of the deck store (520) protrudes forward more than the front end of the emergency generator room (510), so that a portion of the upper surface may be exposed upward.

[0461] On the upper surface of the deck store (520), an entrance (540) may be provided that is connected to a trunk (560) (Access Trunk) that vertically connects the pipe duct (550) of the hull (1) to the front of the emergency generator room (510).

[0462] The entrance (540) may be provided in an exposed portion of the front of the deck store (520).

[0463] A pipe duct (550) extending in the forward and backward direction may be provided at the bottom of the hull (1).

[0464] A trunk (560) extending in the vertical direction may be provided inside the hull (1).

[0465] The trunk (560) can secure movement space for workers by connecting the pipe duct (550) vertically.

[0466] The engine casing (21) can be arranged so that the rear is parallel to the rear end of the stern section (A).

[0467] A plurality of liquefied gas fuel tanks (570) can be arranged so as to be spaced apart from the side of the engine casing (21).

[0468] At the front of the engine casing (21), an engine room (20) hatch that opens and closes for entry and exit to the engine room (20) may be provided on the deck above the engine room (20).

[0469] The engine room (20) hatch can be provided on one side of the center of the hull (1).

[0470] A plurality of liquefied gas fuel tanks (570) can be placed on the left and right sides of the engine room (20) hatch.

[0471] The hull (1) has a mooring deck equipped with mooring equipment at the rear end of the stern, and the mooring deck can be provided at the rear of the engine casing (21).

[0472] The emergency generator room (510) can be provided at a point where the lower deck (502) is connected to the upper deck (501) in a step manner.

[0473] A cofferdam (530) may be provided between the engine room (20) and the part housing the liquefied gas storage tank (10).

[0474] The lower deck (502) can extend to the upper surface of the cofferdam (530).

[0475] The point where the lower deck (502) is connected to the upper deck (501) in a step manner can be provided at the front of the engine room (20).

[0476] The emergency generator room (510) can be arranged so that the front end corresponds to the front end of the engine room (20) when looking at the hull (1) from the side.

[0477]

[0478] Below, a vessel according to a sixth embodiment of the present invention will be described with reference to FIGS. 29 through 33. The following description will focus on the differences between this embodiment and the previous embodiment, and any omitted portions will be replaced with the previous description. It should be noted that this also applies to other embodiments.

[0479] Fig. 29 is a side cross-sectional view of a vessel according to the sixth embodiment of the present invention. Fig. 30 is an enlarged plan view of a portion of a cargo area of ​​a vessel according to the sixth embodiment of the present invention.

[0480] Referring to FIGS. 29 and 30, a ship according to a sixth embodiment of the present invention includes a hull (1) that accommodates a plurality of liquefied gas storage tanks (10), a liquefied gas processing room (15) provided on the deck of the hull (1) and that processes the liquefied gas, and a plurality of vent masts (600) that discharge the liquefied gas into the atmosphere.

[0481] A liquefied gas processing room (15) and multiple vent masts (600) can be provided on the upper deck (101) in the cargo area (C) of the hull (1).

[0482] The vent mast (600) includes a plurality of first vent masts (610) allocated to each of the plurality of liquefied gas storage tanks (10) and a second vent mast (620) allocated to the liquefied gas processing room (15).

[0483] A plurality of first vent masts (610) and second vent masts (620) can be arranged in a left-right direction in front of the liquefied gas processing room (15).

[0484] The plurality of first vent masts (610) include a first-first vent mast (611) and a first-second vent mast (612) assigned to a liquefied gas storage tank (10) positioned at the rear among the plurality of liquefied gas storage tanks (10).

[0485] The first-first vent mast (611), the first-second vent mast (612), and the second vent mast (620) can be arranged in a parallel manner in the left-right direction at a distance from the front of the liquefied gas processing room (15).

[0486] The first-first vent mast (611) is placed on the center side of the hull (1), and the first-second vent mast (612) and the second vent mast (620) can be placed on the left and right sides with the first-first vent mast (611) as the center.

[0487] Fig. 31 is an enlarged perspective view of a liquefied gas processing room portion of a ship according to the sixth embodiment of the present invention. Fig. 32 is an enlarged perspective view of a portion of a cargo area of ​​a ship according to the sixth embodiment of the present invention.

[0488] Referring to FIGS. 31 and 32, in a vessel according to the sixth embodiment of the present invention, the first-first vent mast (611), the first-second vent mast (612), and the second vent mast (620) can be interconnected through brackets (not shown).

[0489] That is, the 1-1 vent mast (611), the 1-2 vent mast (612), and the 2nd vent mast (620) can be arranged side by side in the left and right direction of the hull (1) to form a single tower shape.

[0490] Since the 1-1 vent mast (611), the 1-2 vent mast (612), and the 2nd vent mast (620) are configured in a tower shape, durability and stability can be improved.

[0491] A vessel according to a sixth embodiment of the present invention may further include a cabin (30) provided at a bow of a hull (1) and including a wheelhouse (31).

[0492] The plurality of first vent masts (610) and second vent masts (620) may have a height higher than the liquefied gas processing room (15) and lower than the cabin (30).

[0493] The plurality of liquefied gas storage tanks (10) include a first storage tank (11), a second storage tank (12), a third storage tank (13), and a fourth storage tank (14) arranged sequentially from the bow side to the stern side of the hull (1).

[0494] The liquefied gas processing room (15) can be provided at the upper front end of the fourth storage tank (14) adjacent to the stern side of the hull (1).

[0495] The plurality of first vent masts (610) include a first-first vent mast (611) and a first-second vent mast (612) assigned to the third storage tank (13) and the fourth storage tank (14).

[0496] The first-first vent mast (611), the first-second vent mast (612), and the second vent mast (620) may be provided at the upper rear end of the third storage tank (13).

[0497] A plurality of first vent masts (610) and second vent masts (620) can be provided between the dome (113) of the third storage tank (13) and the liquefied gas processing room (15).

[0498] The plurality of first vent masts (610) further include first-third vent masts (613) and first-fourth vent masts (614) assigned to the first storage tank (11) and the second storage tank (12).

[0499] The 1-3rd vent mast (613) and the 1-4th vent mast (614) can be arranged in parallel in the forward and backward direction of the hull (1) in front of the 1-1st vent mast (611), the 1-2nd vent mast (612), and the 2nd vent mast (620).

[0500] The 1-1st vent mast (611), the 1-3rd vent mast (613), and the 1-4th vent mast (614) are each provided on the center side of the hull (1), and can be arranged in parallel in the front-rear direction of the hull (1).

[0501] Figure 33 is an enlarged cross-sectional side view of a portion of a cargo area of ​​a ship according to the sixth embodiment of the present invention.

[0502] Referring to Fig. 33, in the cargo area (C) where a plurality of liquefied gas storage tanks (10) are provided in the hull (1), a crane (630) installed on the hull (1) may be provided for cargo transfer and maintenance work on the deck.

[0503] In the cargo area (C), a plurality of lighting posts (640) installed on the hull (1) may be provided to ensure safety during night unloading and maintenance work.

[0504] At least one boom rest (641) for mounting the boom of the crane (630) may be provided at the top of each of the plurality of lighting posts (640).

[0505] At least one boom rest (641) for mounting the boom of the crane (630) may be provided on the upper surface of the liquefied gas processing room (15).

[0506] Referring to Fig. 30, work of the crane (630) can be performed on the inside of the work line (L1).

[0507]

[0508] Below, a vessel according to the seventh embodiment of the present invention will be described with reference to FIGS. 34 to 36. The following description will focus on the differences between this embodiment and the previous embodiment, and any omitted portions will be replaced with the previous description. It should be noted that this also applies to other embodiments.

[0509] Fig. 34 is a side cross-sectional view of a vessel according to the seventh embodiment of the present invention. Fig. 35 is a plan view of a vessel according to the seventh embodiment of the present invention.

[0510] Referring to FIGS. 34 and 35, a ship according to the seventh embodiment of the present invention includes a hull (1) that accommodates a plurality of liquefied gas storage tanks (10), a cabin (30) provided at the bow of the hull (1), and a passageway (700).

[0511] The passageway (700) is provided on the upper deck (101) of the section that accommodates a plurality of liquefied gas storage tanks (10) and can extend in the forward and backward directions.

[0512] The moving passage (700) is provided in a sealed form and the inside can be controlled by positive pressure.

[0513] Since the interior of the passageway (700) is controlled to positive pressure, it is possible to ensure that crew members or workers can move safely in an emergency situation where the air outside the passageway (700) is contaminated or a toxic substance is leaked.

[0514] The passage (700) is connected to the rear end of the cabin (30), and the inside can be controlled to positive pressure by receiving air from the cabin (30).

[0515] The passageway (700) may be provided with at least one entrance (not shown) at each of the front, rear, and middle points.

[0516] Sailors or workers can move to the bow area (F) and the stern area (A) through at least one entrance or exit provided at the front and rear ends of the passageway (700).

[0517] Crew members or workers can move to the cargo area (C) through at least one entrance or exit provided at the midpoint of the passageway (700).

[0518] An air curtain using positive pressure is formed at at least one entrance or exit of the passageway (700), thereby preventing outside air from flowing into the passageway (700).

[0519] The air within the passage (700) can be discharged to the outside through a separate exhaust port (not shown) while maintaining positive pressure inside.

[0520] The exhaust port is equipped with a device to prevent backflow of gas, thereby preventing outside air from entering.

[0521] The plurality of liquefied gas storage tanks (10) include a first storage tank (11), a second storage tank (12), a third storage tank (13), and a fourth storage tank (14) arranged sequentially from the bow side to the stern side of the hull (1).

[0522] The moving passage (700) can be arranged to pass through the upper surfaces of the first storage tank (11), the second storage tank (12), the third storage tank (13), and the fourth storage tank (14).

[0523] The moving passage (700) can be arranged adjacent to the domes (111, 112, 113, 114) of each of the first storage tank (11), the second storage tank (12), the third storage tank (13), and the fourth storage tank (14).

[0524] A liquefied gas processing room (15) for processing liquefied gas may be provided at the upper front end of the fourth storage tank (14) adjacent to the stern side of the hull (1).

[0525] The passageway (700) can be arranged to extend upward from the fourth storage tank (14) and pass through the upper surface of the liquefied gas processing room (15).

[0526] The moving passage (700) can be arranged to extend downward from the upper front end of the liquefied gas processing room (15) and pass through the upper surface of the third storage tank (13).

[0527] In the stern area (A) of the hull (1), an engine room (20) for accommodating a propulsion engine and an emergency generator room (22) provided at the upper front end of the engine room (20) may be provided.

[0528] The passageway (700) may be provided with an entrance (drawing number not indicated) on one side of the front of the emergency generator room (22).

[0529] Sailors or workers can move from the stern area (A) to the bow area (F) through the passageway (700).

[0530] Figure 36 is a cross-sectional view of a vessel according to the seventh embodiment of the present invention.

[0531] Referring to Fig. 36, a pipe rack (710) extending along at least a portion of the moving passage (700) and having a cargo pipe accommodated on the inside may be provided on the upper side of the moving passage (700).

[0532] Cargo pipes can transport liquefied gas by connecting cargo tanks and unloading equipment (pumps, loading arms, etc.) on liquefied gas carriers.

[0533] Cargo pipes may include insulation and expansion compensation structures to ensure safe transport in cryogenic environments.

[0534] The pipe rack (710) is installed to support and protect the cargo pipe (cargo pipe) and can be placed above the passageway (700) along the passageway (700).

[0535] The pipe rack (710) may include a support method that takes into account thermal expansion of the pipe and an open design for maintenance convenience.

[0536] Cargo pipes and pipe racks (710) may be arranged to bypass the passageway (700) in some areas.

[0537] For example, the cargo pipe and pipe rack (710) may be arranged to bypass the outside of the liquefied gas processing room (15) in a section where the passage (700) extends upward from the fourth storage tank (14) and passes over the upper surface of the liquefied gas processing room (15).

[0538]

[0539] The present invention is not limited to the embodiments described above, and may include a combination of the above embodiments or a combination of at least one of the above embodiments and a known technology as another embodiment.

[0540] Although the present invention has been described in detail through specific examples, this is intended to specifically explain the present invention, and the present invention is not limited thereto, and it will be apparent that modifications and improvements can be made by those skilled in the art within the technical spirit of the present invention.

[0541] All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims.

Claims

1. A hull accommodating a liquefied gas storage tank; and An engine room is provided at the stern of the above hull and includes a propulsion engine; The above hull, The upper deck of the cargo area accommodating the above liquefied gas storage tank is formed without steps, A ship having a stern deck provided above the engine room and positioned lower than the upper deck to form a step with the upper deck.

2. In paragraph 1, An engine casing provided at the stern of the above hull and disposed on the upper side of the engine room to discharge the exhaust of the propulsion engine; The above engine casing, Placed on the above stern deck, The above engine room, A ship whose upper surface is arranged parallel to the stern deck.

3. In paragraph 1, At the rear of the above stern deck, A large deck equipped with mooring equipment is provided. The above stern deck, A ship that is connected to the rear end of the above-mentioned large deck by a flat surface without steps.

4. In paragraph 1, A steering room provided at the rear of the engine room inside the hull and controlling the angle of the rudder; A carbon dioxide room provided between the side shell and the steering room inside the hull; A fresh water tank provided between the side shell and the steering room inside the hull; and Further comprising a liquefied gas fuel tank provided on the upper side of the engine room in the above hull; The above carbon dioxide room is, It is placed on the opposite side of the fresh water tank based on the above steering room, A ship provided at the rear of the above liquefied gas fuel tank, but provided in a position that does not overlap with the above liquefied gas fuel tank.

5. In paragraph 1, A cabin provided on the bow of the above hull; and It further includes a passage provided on the upper deck and extending in the forward and backward direction; The above passageway is, It is installed in a sealed form and connected to the rear end of the cabin, and the inside is controlled to positive pressure by supplying air from the cabin. A ship having at least one entrance / exit at each of the front, rear, and middle points, and an air curtain formed by positive pressure in at least one of the entrance / exit points, thereby preventing outside air from flowing into the passageway.

6. Hull accommodating liquefied gas storage tank; An engine room provided at the stern of the above hull and housing a propulsion engine; A liquefied gas fuel tank provided on the upper side of the engine room in the above hull; and A cabin including a wheelhouse, which is provided at the bow of the hull and is transferred from the stern of the hull; At least a portion of the above liquefied gas fuel tank, The above cabin is placed in the stern space of the above hull as it is moved to the bow of the above hull, A portion of it is provided above the engine room, A vessel in which the remaining portion is provided above the liquefied gas storage tank.

7. In paragraph 6, The above liquefied gas fuel tank, A ship, which is provided in multiple pieces and is arranged on the left and right sides based on the dome of the liquefied gas storage tank exposed above the upper deck of the hull, and is arranged in the forward and backward direction of the hull, and is arranged so that the front end is adjacent to the dome of the liquefied gas storage tank.

8. In paragraph 7, The above plurality of liquefied gas fuel tanks are, Each includes a cylindrical portion extending in the longitudinal direction and a spherical portion ending both ends of the cylindrical portion, The point where the front end of the above cylindrical portion and the above spherical portion are connected is A vessel provided in a position overlapping the above dome in the left and right directions.

9. In paragraph 7, An engine casing provided at the stern of the above hull and disposed on the upper side of the engine room to discharge the exhaust of the propulsion engine; The above plurality of liquefied gas fuel tanks are, A ship, arranged parallel to the front and rear in the forward direction at the front of the above engine casing.

10. In paragraph 9, Further comprising an engine room hatch provided on the deck above the engine room at the front of the engine casing and opened and closed for entry and exit to the engine room; A plurality of the above liquefied gas fuel tanks, A ship placed on the left and right sides based on the above engine room hatch.

11. A hull accommodating a liquefied gas storage tank; and Including a cabin provided on the bow of the above hull; The above cabin, A living space supported on the bow deck of the hull and having a first slope that recedes from the bottom to the top at the front; and A steering area provided above the above-mentioned living area and having a second slope that protrudes forward from the bottom to the top; The above residential area is, A ship comprising a lower section having a first-first inclination angle relative to the deck of the hull, and an upper section having a first-second inclination angle that is relatively greater than the first-first angle.

12. In paragraph 11, The front of the above steering area and the front of the above living area, A ship with a shape that is sunken towards the rear.

13. In paragraph 11, The front of the above steering area is, A ship whose lower part is arranged parallel to the upper part of the front of the above-mentioned living area in the forward and backward direction.

14. In paragraph 11, The above hull, The upper deck of the cargo area accommodating the above liquefied gas storage tank is formed without steps, The above cabin, A ship provided on the bow deck, which is positioned lower than the upper deck and forms a step with the upper deck.

15. In paragraph 14, The above cabin, It is supported by a piloti structure and is spaced upward from the above player deck, The lower part of the above cabin is A ship arranged parallel to the upper deck.

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