WO2020195340A1 - Ship - Google Patents

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Publication number
WO2020195340A1
WO2020195340A1 PCT/JP2020/006152 JP2020006152W WO2020195340A1 WO 2020195340 A1 WO2020195340 A1 WO 2020195340A1 JP 2020006152 W JP2020006152 W JP 2020006152W WO 2020195340 A1 WO2020195340 A1 WO 2020195340A1
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WO
WIPO (PCT)
Prior art keywords
tank
hull
ship
connection box
fuel
Prior art date
Application number
PCT/JP2020/006152
Other languages
French (fr)
Japanese (ja)
Inventor
浩紀 竹村
金子　秀明
加藤　雅之
Original Assignee
三菱造船株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱造船株式会社 filed Critical 三菱造船株式会社
Priority to CN202080023636.1A priority Critical patent/CN113613993A/en
Priority to KR1020217030320A priority patent/KR20210129168A/en
Publication of WO2020195340A1 publication Critical patent/WO2020195340A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B11/00—Interior subdivision of hulls
    • B63B11/04—Constructional features of bunkers, e.g. structural fuel tanks, or ballast tanks, e.g. with elastic walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like

Definitions

  • the present invention relates to ships.
  • the present application claims priority with respect to Japanese Patent Application No. 2019-062591 filed in Japan on March 28, 2019, the contents of which are incorporated herein by reference.
  • Ships such as ferries, RORO (Roll-on / Roll-off) ships, PCTC (Pure Car & Truck Carrier) ships, and passenger ships are equipped with fuel tanks for storing fuel for driving main engines and auxiliary machinery.
  • RORO Roll-on / Roll-off
  • PCTC Purge Car & Truck Carrier
  • Patent Document 1 discloses a configuration in which an LNG (Liquefied Natural Gas) fuel tank is provided on the upper deck of a ship.
  • Patent Document 2 discloses a configuration in which a cylindrical LNG fuel tank is provided inside the ship.
  • the fuel tank for storing liquefied gas fuel such as the LNG fuel tank is provided with a tank connection space for accommodating pipes, valves, and the like connected to the fuel tank.
  • the tank connection space has a hollow box shape for the purpose of preventing diffusion when gas leaks, and is explosion-proof. If a fuel tank and such a tank connection space are provided inside the ship, the loading space inside the ship and the space for providing a cabin or the like will be reduced accordingly.
  • the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a ship capable of effectively utilizing the space inside the ship and increasing the space for providing a loading space, a cabin, and the like.
  • the ship includes a hull, a main engine, a fuel tank, and a tank connection box portion.
  • the hull has a plurality of layers of decks provided at intervals in the ship height direction.
  • the main engine is provided inside the ship.
  • the fuel tank is provided inside the ship.
  • the fuel tank stores liquefied gas fuel or gas fuel to be supplied to the main engine.
  • the tank connection box portion accommodates at least a part of the fuel tank. At least a part of the tank connection box portion is formed of a plate-shaped hull member provided on the hull side.
  • At least a part of the tank connection box part can be integrated with the hull by forming at least a part of the tank connection box part with the hull members constituting the hull.
  • the space for providing the tank connection box portion can be reduced. Therefore, it is possible to make effective use of the space inside the ship and increase the space for loading space, guest rooms, and the like.
  • the fuel tank according to the first aspect may include a tank main body and a tank protrusion.
  • the tank protrusion protrudes outward from the outer surface of the tank body.
  • the tank connection box portion may include the hull member and the surrounding wall member.
  • the hull member has an insertion hole through which the tank protrusion is inserted.
  • the surrounding wall member is arranged on the side opposite to the tank main body with the hull member interposed therebetween.
  • the surrounding wall member may surround the tank protruding portion protruding from the hull member to the opposite side through the insertion hole.
  • the tank body is provided on the first side of the hull member, and the tank connection box portion is provided on the second side (opposite side) of the hull member. Therefore, since only the tank connection box portion surrounding the tank protrusion is provided on the second side of the hull member, the space on the second side of the hull member can be effectively used. Further, the layout of the tank connection box portion is not limited by the tank body or the like. Therefore, the degree of freedom in the layout of the tank connection box portion on the second side of the hull member is increased. Since only the tank body needs to be provided on the first side of the hull member, it is not necessary to secure a space for providing the tank connection box portion on the first side of the hull member.
  • the axial length of the tank body can be shortened accordingly. Therefore, the space on the first side of the hull member can be effectively used.
  • the hull member forming the tank connection box portion according to the first or second aspect may include the deck.
  • the tank body may be arranged on a lower level of the deck.
  • the tank protrusion may be made to protrude upward from the deck having the insertion hole through the insertion hole.
  • the ship according to any one of the first to third aspects may include a flange portion, a tank cover portion, and a seal member.
  • the flange portion extends outward from the outer surface of the fuel tank.
  • the tank cover portion extends from the inner peripheral surface of the tank connection box portion toward the flange portion, and is provided at a distance from the flange portion.
  • the sealing member is provided so as to close between the flange portion and the tank cover portion.
  • FIG. 1 is a side view showing the overall configuration of the ship in this embodiment.
  • FIG. 2 is a diagram showing the configuration of the ship, and is a cross-sectional view taken along the line AA of FIG.
  • FIG. 3 is a side sectional view showing a fuel tank and a tank connection box portion provided on the ship.
  • FIG. 4 is an enlarged side sectional view showing a main part of a fuel tank and a tank connection box portion provided on the ship.
  • the ship 1 of this embodiment is, for example, a vehicle carrier capable of carrying a vehicle.
  • the ship 1 includes a hull 2, a main engine 8, a fuel tank 20, and a tank connection box portion 30.
  • the hull 2 has side 3A and 3B, a ship bottom 4, and a multi-layered deck 10.
  • the side 3A and 3B are composed of a pair of ship side skin plates forming the left and right side sides on both sides of the ship width direction Dw.
  • the ship bottom 4 is composed of a ship bottom outer plate connecting these side 3A and 3B.
  • the cross-sectional shapes of the pair of side 3A and 3B and the bottom 4 are U-shaped.
  • the hull 2 is provided with a shore lamp 7 in order to allow the vehicle to board (roll on) or disembark (roll off) in the hull 2.
  • the shore lamp 7 is provided, for example, on the stern 2b or the like.
  • the shore lamp 7 can be tilted toward the outside of the hull 2.
  • the vehicle travels on the shore lamp 7 with the shore lamp 7 tilted to the outside of the hull 2 and disembarks and disembarks.
  • the multi-layered decks 10 are provided in the hull 2 at intervals in the ship height direction Dh.
  • a freeboard deck 11 is provided as one of the multi-layered decks 10.
  • a plurality of layers of decks 12, 13, 14, 15, 16 and 17 are provided above and below the freeboard deck 11.
  • the deck 10 used as the vehicle deck on which the vehicle is loaded is provided with a rampway (not shown) for the vehicle to move between adjacent decks 10 in the ship height direction Dh. Has been done.
  • the hull 2 illustrated in this embodiment is provided with a bottom deck 18 forming a double bottom together with the ship bottom 4 below the freeboard deck 11.
  • the main engine 8 is provided inside the hull 2. Specifically, the main engine 8 is installed in the engine room S1 provided inside the hull 2. A propeller 5 and a rudder 6 are provided at the bottom of the hull 2 on the stern 2b side. The propeller 5 is driven by a main engine 8 provided in the hull 2 to generate a propulsive force for propelling the ship 1. The rudder 6 is provided behind the propeller 5 and controls the traveling direction of the hull 2.
  • the fuel tank 20 stores the fuel to be supplied to the main engine 8.
  • the fuel tank 20 in this embodiment is arranged on the bottom deck 18. Further, in this embodiment, two fuel tanks 20 are arranged side by side with a gap in the ship width direction Dw (see FIG. 2). Further, the two fuel tanks 20 illustrated in this embodiment have the same shape and are arranged symmetrically with respect to the center position in the ship width direction Dw.
  • the fuel tank 20 includes a tank main body 21 and a tank protrusion 22, respectively.
  • the fuel of the main engine 8 illustrated in this embodiment is a liquefied gas such as LNG (Liquefied Natural Gas) or LPG (Liquefied Petroleum Gas), and the fuel tank 20 is a so-called pressure vessel.
  • the tank body 21 of this embodiment has a cylindrical shape extending in the stern-tail direction Da.
  • the tank body 21 is housed in a tank chamber S2 formed on the bottom deck 18.
  • the tank chamber S2 is separated from the engine room S1 on the stern 2b side by a bulkhead 19A which is a horizontal bulkhead extending in the ship width direction Dw.
  • the tank chamber S2 is separated from the cargo compartment S3 on the bow 2a side by a bulkhead 19B which is a horizontal bulkhead extending in the ship width direction Dw.
  • the tank chamber S2 of this embodiment has a height over a plurality of layers of the cargo compartment S3. That is, in the cargo compartment S3, a plurality of decks 16 and 17 are arranged below the deck 15 located above the tank chamber S2 (hereinafter, the deck 15 is referred to as the upper deck 15).
  • the tank projecting portion 22 projects radially outward from the outer peripheral surface (outer surface) of the tank body 21.
  • the tank protrusion 22 projects upward from the tank body 21 toward the hull.
  • the tank protrusion 22 has a tubular portion 22a and a dome portion 22b.
  • the tubular portion 22a has a cylindrical shape extending vertically upward from the upper surface of the tank body 21.
  • the dome portion 22b is continuously formed on the upper side of the tubular portion 22a.
  • the dome portion 22b has a hemispherical shape that is convex upward.
  • the dome portion 22b is formed so as to close the upper part of the tubular portion 22a.
  • the upper deck 15 located above the tank chamber S2 is provided with an insertion hole 34 penetrating in the ship height direction Dh.
  • the tank protrusion 22 projects to the layer S4 immediately above the upper deck 15 through the insertion hole 34 of the upper deck 15. That is, the tank protrusion 22 protrudes above the upper deck 15.
  • the tank connection box portion 30 is provided on the upper deck 15 located above the tank body 21.
  • the tank connection box portion 30 is provided in the upper layer S4 of the tank chamber S2 in which the tank main body 21 is provided.
  • the tank connection box portion 30 has a hollow box shape.
  • the tank connection box portion 30 of this embodiment has a rectangular shape in a plan view having a long axis direction in the ship width direction Dw.
  • the tank connection box portion 30 surrounds the tank protrusion 22 that protrudes upward from the upper deck 15.
  • the tank protrusions 22 of the two fuel tanks 20 arranged in the ship width direction Dw are surrounded by one tank connection box portion 30.
  • the tank connection box portion 30 has a bottom plate portion 31, a side plate portion 32, and a top plate portion 33.
  • the tank connection box portion 30 is airtightly configured. In other words, in the layer S4, the internal space of the tank connection box portion 30 and the space outside the tank connection box portion 30 are sealed so that gas does not flow.
  • the bottom plate portion 31 is formed by the upper deck 15 constituting the hull 2. That is, a part of the upper deck 15 also serves as the bottom plate portion 31 of the tank connection box portion 30.
  • the upper deck 15 is a plate-shaped hull member 31s that constitutes the hull 2.
  • the side plate portion 32 is provided on the upper deck 15 (in other words, the bottom plate portion 31).
  • the side plate portion 32 is arranged so as to surround the periphery of the tank protrusion 22 of the two fuel tanks 20 in a plan view.
  • the side plate portion 32 has, for example, a rectangular shape in a plan view.
  • the side plate portions 32 are provided at intervals in the stern-tail direction Da and the ship width direction Dw with respect to the two tank protrusions 22.
  • the side plate portion 32 is formed by a plate-shaped surrounding wall member 32p made of a member different from the upper deck 15.
  • the top plate portion 33 is provided so as to close the upper portion of the side plate portion 32.
  • the top plate portion 33 is formed by the freeboard deck 11 constituting the hull 2. That is, a part of the freeboard deck 11 also serves as the top plate portion 33 of the tank connection box portion 30.
  • the freeboard deck 11 is a plate-shaped hull member 33s that constitutes the hull 2.
  • the tank connection box portion 30 includes a hull member 31s, a wall member 32p, and a hull member 33s.
  • the hull member 31s has an insertion hole 34 into which the tank protrusion 22 is inserted.
  • the surrounding wall member 32p is arranged on the opposite side (upper side) of the tank body 21 with the hull member 31s interposed therebetween.
  • the surrounding wall member 32p surrounds the tank protruding portion 22 protruding to the opposite side from the hull member 31s through the insertion hole 34.
  • the tank connection box portion 30 accommodates a tank protrusion 22 which is a part of the fuel tank 20 and pipes (not shown) and valves (not shown) connected to the fuel tank 20.
  • a tank-side flange member (flange portion) 25 is provided on the tank protrusion 22 of the fuel tank 20 housed in the tank connection box portion 30.
  • the tank-side flange member 25 extends radially outward from the outer peripheral surface (more specifically, the tubular portion 22a) of the tank protrusion 22 of the fuel tank 20, and is formed in an annular shape continuous in the circumferential direction of the tank protrusion 22. Has been done.
  • the tank-side flange members 25 are formed at intervals above the upper deck 15.
  • a tank cover portion 35 is provided on the upper deck 15.
  • the tank cover portion 35 is provided so as to surround the tank protrusion 22 of the fuel tank 20.
  • the tank cover portion 35 is provided at intervals outward in the radial direction with respect to the outer peripheral surface of the tank protrusion portion 22.
  • the tank cover portion 35 is formed in an annular shape along the inner peripheral edge of the insertion hole 34.
  • the tank cover portion 35 has a tubular shape extending upward from the upper deck 15.
  • An upper end flange 35a extending on both sides in the horizontal direction is integrally provided at the upper end of the tank cover portion 35.
  • the upper end flange 35a of the tank cover portion 35 is arranged vertically below the tank side flange member 25.
  • the upper end flange 35a of the tank cover portion 35 and the tank side flange member 25 face each other with a gap in the ship height direction Dh.
  • the seal member 40 is provided so as to close between the tank side flange member 25 and the tank cover portion 35.
  • the seal member 40 is made of a material having airtightness and elasticity such as a rubber-based material.
  • the seal member 40 ensures airtightness between the tank protrusion 22 of the fuel tank 20 and the tank connection box portion 30. Further, the seal member 40 is elastically deformed even when the relative displacement between the tank protrusion 22 and the tank connection box 30 occurs due to the difference in the coefficient of thermal expansion between the hull 2 and the fuel tank 20. It is possible to maintain airtightness.
  • the bottom plate portion 31 which is at least a part of the tank connection box portion 30 is formed by the upper deck 15 which is the hull member 31s constituting the hull 2.
  • the tank connection box portion 30 can be formed by the upper deck 15 integrated with the hull 2.
  • the fuel tank 20 is provided with a tubular tank body 21 and a tank protrusion 22. Further, the surrounding wall members 32p and 33p forming the tank connection box portion 30 are arranged on the opposite side of the tank body 21 with the hull member 31s interposed therebetween. Further, the surrounding wall members 32p and 33p surround the tank protruding portion 22 protruding to the opposite side from the hull member 31s through the insertion hole 34.
  • the tank body 21 can be arranged on the lower side (first side) of the upper deck 15 which is the hull member 31s, and the tank connection box portion 30 can be arranged on the upper side (second side) of the upper deck 15. it can. Since only the tank connection box portion 30 surrounding the tank protrusion 22 is provided on the upper side of the upper deck 15, the space in the upper layer S4 of the upper deck 15 can be effectively used. Further, the layout of the tank connection box portion 30 is not limited by the tank main body 21. Therefore, the degree of freedom in the layout of the tank connection box portion 30 on the upper side of the hull member 31s is also increased. As a result, in the upper layer S4 of the upper deck 15, it is possible to effectively utilize the space for providing the loading space and the like.
  • the diameter dimension of the tank body 21 can be maximized according to the interior dimension of the tank chamber S2 in the ship height direction Dh. Further, when the tank capacity is constant, the axial length of the tank body 21 can be shortened by the amount that the diameter dimension of the tank body 21 is maximized. As a result, the space of the tank chamber S2 below the upper deck 15 which is the hull member 31s can be effectively used.
  • the tank body 21 is arranged in the tank chamber S2 on the lower level of the upper deck 15. Further, the tank protrusion 22 projects upward from the upper deck 15 through the insertion hole 34.
  • the upper layer S4 of the upper deck 15 may be provided with only the tank connection box portion 30 surrounding the tank protrusion 22 without providing the tank main body 21. Further, only the tank main body 21 needs to be provided in the tank chamber S2, which is the lower layer of the upper deck 15. As a result, effective use of space can be achieved in each of the upper layer S4 and the lower layer of the upper deck 15.
  • a seal member 40 is provided so as to close the space between the tank side flange member 25 and the tank cover portion 35.
  • FIG. 5 is a side sectional view showing a configuration in a modified example of the first embodiment of the ship.
  • a piping section S6, a related equipment room S7, and the like may be provided in the upper layer S4 of the upper deck 15.
  • the pipe section S6 extends in the ship height direction Dh, and accommodates a fuel supply pipe that supplies fuel into the fuel tank 20 from the ship.
  • various equipments and the like provided attached to the fuel tank 20 are housed.
  • These piping sections S6 and related equipment room S7 are arranged around the tank connection box portion 30 and are adjacent to the tank connection box portion 30.
  • the piping compartment S6 is arranged on the first side of the tank connection box portion 30 in the ship width direction Dw, and the related equipment room S7 is arranged on the second side of the tank connection box portion 30 in the ship width direction Dw.
  • the space around the tank connection box portion 30 can be effectively used in the upper layer S4 of the upper deck 15.
  • FIG. 6 is a cross-sectional view corresponding to FIG. 3 showing the configuration of a ship according to the second embodiment of the present invention.
  • FIG. 7 is a cross-sectional view corresponding to FIG. 2 of the ship according to the second embodiment of the present invention.
  • the ship 1B in the second embodiment includes a fuel tank 50.
  • the fuel tank 50 is arranged on the bottom deck 18 in the hull 2.
  • the fuel tank 50 stores fuel to be supplied to the main engine 8 (see FIG. 1).
  • Two fuel tanks 50 of the second embodiment are provided as in the fuel tank 20 of the first embodiment. These two fuel tanks 50 are arranged side by side at intervals in the ship width direction Dw.
  • the two fuel tanks 50 have the same shape and are arranged symmetrically with respect to the center position in the ship width direction Dw.
  • the fuel tank 50 has a cylindrical shape extending in the stern direction Da.
  • the fuel tank 50 is housed in a tank chamber S2 formed on the bottom deck 18.
  • the tank chamber S2 is separated from the engine room S1 on the stern 2b side by the partition wall 19A. Further, the tank chamber S2 is separated from the cargo compartment S3 on the bow 2a side by the partition wall 19B.
  • the tank connection box portion 60 is provided in the same tank chamber S2 as the fuel tank 50.
  • the tank connection box portion 60 has a hollow box shape.
  • the tank connection box portion 60 in the second embodiment has a rectangular shape in a plan view having a long axis direction in the ship width direction Dw.
  • the tank connection box portion 60 is provided on the side of the fuel tank 50 near the stern 2b in the stern direction Da. More specifically, the tank connection box portion 60 is provided so as to surround the tank end portion 52 on the stern 2b side of the fuel tank 50.
  • the tank connection box portion 60 of the second embodiment surrounds the tank end portions 52 of the two fuel tanks 50 arranged side by side in the ship width direction Dw.
  • the tank connection box portion 60 has a bottom plate portion 61, an end plate portion 62, a side plate portion 63, and a top plate portion 64.
  • the bottom plate portion 61 is formed by the bottom deck 18.
  • the bottom deck 18 is a plate-shaped hull member 61s that constitutes the hull 2.
  • the end plate portion 62 is provided on the bottom deck 18.
  • the end plate portion 62 is provided at a distance on the stern 2b side with respect to the tank end portion 52.
  • the end plate portion 62 is formed by the partition wall 19A.
  • the partition wall 19A is a plate-shaped hull member 62s that constitutes the hull 2.
  • the side plate portions 63 are provided on both sides of the two fuel tanks 50 in the ship width direction Dw, respectively.
  • the side plate portion 63 extends from the end plate portion 62 toward the bow 2a side, and is provided at intervals on both sides of the tank end portion 52 in the ship width direction Dw.
  • the top plate portion 64 is formed by the upper deck 15.
  • the upper deck 15 is a plate-shaped hull member 64s that constitutes the hull 2.
  • a part of the tank connection box portion 60 is formed of hull members 61s, 62s, 64s.
  • the tank connection box portion 60 accommodates a tank end portion 52, which is a part of the fuel tank 50, and pipes (not shown) and valves (not shown) connected to the fuel tank 50.
  • a tank side flange member (flange portion) 55 is provided at the tank end portion 52 of the fuel tank 50.
  • the tank-side flange member 55 extends radially outward from the outer peripheral surface of the fuel tank 50.
  • the tank-side flange member 55 is formed in an annular shape continuous in the circumferential direction of the fuel tank 50.
  • a tank cover portion 65 is provided on the inner surface of the tank connection box portion 60.
  • the tank cover portion 65 is provided so as to surround the tank end portion 52 of the fuel tank 50.
  • the tank cover portion 65 is provided at intervals outward in the radial direction with respect to the outer peripheral surface of the tank end portion 52.
  • the tank cover portion 65 extends from the bottom deck 18, the side plate 63, and the upper deck 15 toward the outer peripheral surface of the tank end 52.
  • the tank cover portion 65 faces the tank side flange member 55 on the outer side in the radial direction at intervals.
  • the seal member 70 is provided so as to close between the tank side flange member 55 and the tank cover portion 65.
  • the seal member 70 is made of a material having airtightness and elasticity such as a rubber-based material.
  • the seal member 70 ensures airtightness inside and outside the tank connection box portion 60 in which the tank end portion 52 of the fuel tank 50 is housed. Further, in the seal member 70, as in the seal member 40 of the first embodiment, the relative displacement between the tank end portion 52 and the tank connection box portion 30 is caused by the difference in the coefficient of thermal expansion between the hull 2 and the fuel tank 50. Even if it occurs, it is elastically deformed so that airtightness can be maintained.
  • the bottom plate portion 61, the end plate portion 62, and the top plate portion 64 that form a part of the tank connection box portion 60 are plate-shaped provided on the hull 2 side. It was formed by the bottom deck 18, the partition wall 19A, and the upper deck 15, which are the hull members 61s, 62s, and 64s. Further, the tank end portion 52 of the fuel tank 50 is housed in the tank connection box portion 60. As a result, the space for providing the tank connection box portion 60 can be reduced. As a result, it is possible to effectively use the space in the hull 2 and increase the space for loading the cargo space, the guest room, and the like.
  • the present invention is not limited to the above-described embodiment, and includes various modifications of the above-described embodiment without departing from the spirit of the present invention. That is, the specific shape, configuration, and the like given in the embodiment are merely examples, and can be changed as appropriate. For example, the number of layers of the deck 10 in the hull 2 of the ships 1 and 1B can be changed as appropriate.
  • the number, shape, structure, etc. of the fuel tanks 20 and 50 can be changed as appropriate.
  • the case where the two fuel tanks 50 have the same shape has been described as an example, but the shape is not limited to the same.
  • the case where the fuel tank 50 is arranged on the bottom deck 18 has been described, but the bottom deck 18 may be arranged on the deck 10 at a level higher than the bottom deck 18. Good.
  • the case where the fuel tanks 20 and 50 extend in the stern direction Da is illustrated.
  • the fuel tanks 20 and 50 may extend in the ship width direction Dw.
  • the case where the fuel stored in the fuel tanks 20 and 50 is a liquid liquefied gas has been described.
  • the fuel stored in the fuel tanks 20 and 50 is not limited to the liquid.
  • it may be a fuel in a gaseous state such as natural gas or petroleum gas.
  • the two fuel tanks 50 are arranged in the same watertight compartment (tank chamber) S2 as an example, but the two fuel tanks 50 are different from each other. They may be arranged in adjacent watertight compartments. In other words, a longitudinal partition wall may be arranged between the two fuel tanks 50.
  • the side wall of the tank chamber S2 in the width direction Dw is formed by the side 3A and 3B is illustrated.
  • the side wall of the tank chamber S2 in the ship width direction Dw is not limited to the side 3A and 3B.
  • a longitudinal partition wall may be arranged inside the ship width direction Dw rather than the side 3A and 3B.
  • the dimension of the tank chamber S2 in the ship width direction Dw may be, for example, a size corresponding to the size of the arrangement space of the fuel tank 50.
  • the ship type of the ship 1 is not limited to a specific one, and various ship types such as a ferry, a RORO ship (Roll-on / Roll-off ship), a PCTC (Pure Car & Truck Carrier), and a passenger ship can be adopted. ..

Abstract

This ship (1) comprises: a hull (2); a plurality of decks (10); a main engine; a fuel tank (20); and a tank connection box (30). The hull (2) has broadsides on both sides of the hull (2) in the ship width direction. The plurality of decks (10) are provided with intervals therebetween in the ship height direction within the hull (2). The main engine is provided within the hull (2). The fuel tank (20) stores fuel which is supplied to the main engine. The tank connection box (30) houses at least part of the fuel tank (20). The tank connection box (30) is a hollow box shape. The tank connection box (30) is formed by a plate-shaped hull member (31s) provided at least partially on the hull (2) side.

Description

船舶Ship
　この発明は、船舶に関する。
　本願は、２０１９年３月２８日に日本に出願された特願２０１９－０６２５９１号について優先権を主張し、その内容をここに援用する。 The present invention relates to ships.
The present application claims priority with respect to Japanese Patent Application No. 2019-062591 filed in Japan on March 28, 2019, the contents of which are incorporated herein by reference.
　フェリー、ＲＯＲＯ（Ｒｏｌｌ－ｏｎ／Ｒｏｌｌ－ｏｆｆ）船、ＰＣＴＣ（Ｐｕｒｅ　Ｃａｒ　＆　Ｔｒｕｃｋ　Ｃａｒｒｉｅｒ）船、旅客船等の船舶は、主機や補機を駆動するための燃料を貯留する燃料タンクを備えている。 Ships such as ferries, RORO (Roll-on / Roll-off) ships, PCTC (Pure Car & Truck Carrier) ships, and passenger ships are equipped with fuel tanks for storing fuel for driving main engines and auxiliary machinery.
　例えば、特許文献１には、船舶の上甲板上に、ＬＮＧ（Liquefied Natural Gas）燃料タンクを備えた構成が開示されている。
　また、特許文献２には、円筒形状をなしたＬＮＧ燃料タンクを、船体内に備えた構成が開示されている。 For example, Patent Document 1 discloses a configuration in which an LNG (Liquefied Natural Gas) fuel tank is provided on the upper deck of a ship.
Further, Patent Document 2 discloses a configuration in which a cylindrical LNG fuel tank is provided inside the ship.
特許第６００２８１３号公報Japanese Patent No. 6002813 特許第６１４３４０７号公報Japanese Patent No. 6143407
　しかしながら、特許文献１に開示されたような構成では、船体の上方部にＬＮＧ燃料タンクやタンク覆い等の重量物を配置することになり、船舶の重心が上昇することで不安定となる。船体の安定性を確保するためには、船底部に海水バラストを搭載する必要が生じ、結果として船の全体重量（排水量）が増加して推進のためにより多くの燃料が必要となる。 However, in the configuration as disclosed in Patent Document 1, heavy objects such as an LNG fuel tank and a tank cover are arranged in the upper part of the hull, and the center of gravity of the ship rises, resulting in instability. In order to ensure the stability of the hull, it is necessary to mount seawater ballast on the bottom of the ship, and as a result, the total weight (displacement) of the ship increases and more fuel is required for propulsion.
　特許文献２に開示されたような構成では、ＬＮＧ燃料タンクを船体内に設けているため、上記したような問題は回避することができる。しかし、ＬＮＧ燃料タンク等の液化ガス燃料を船体内に貯留する燃料タンクには、燃料タンクに接続される配管や弁等が収容されるタンクコネクションスペースが設けられる。タンクコネクションスペースは、ガスの漏洩時に拡散を防止する目的から中空箱状をなしており、防爆仕様となっている。燃料タンクと、このようなタンクコネクションスペースとを船体内に備えると、その分、船体内の積荷スペースや、客室等を設けるスペースが小さくなる。
　この発明は、上記事情に鑑みてなされたものであり、船体内のスペースの有効利用を図り、積荷スペースや客室等を設けるスペースを増大させることができる船舶を提供することを目的とする。 In the configuration as disclosed in Patent Document 2, since the LNG fuel tank is provided inside the ship, the above-mentioned problems can be avoided. However, the fuel tank for storing liquefied gas fuel such as the LNG fuel tank is provided with a tank connection space for accommodating pipes, valves, and the like connected to the fuel tank. The tank connection space has a hollow box shape for the purpose of preventing diffusion when gas leaks, and is explosion-proof. If a fuel tank and such a tank connection space are provided inside the ship, the loading space inside the ship and the space for providing a cabin or the like will be reduced accordingly.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a ship capable of effectively utilizing the space inside the ship and increasing the space for providing a loading space, a cabin, and the like.
　この発明は、上記課題を解決するため、以下の手段を採用する。
　この発明の第一態様によれば、船舶は、船体と、主機と、燃料タンクと、タンク接続ボックス部と、を備える。前記船体は、船高さ方向に間隔をあけて設けられた複数層の甲板を有する。前記主機は、前記船体内に設けられている。前記燃料タンクは、前記船体内に設けられている。前記燃料タンクは、前記主機に供給する液化ガス燃料又はガス燃料を貯留する。前記タンク接続ボックス部は、少なくとも前記燃料タンクの一部を収容する。前記タンク接続ボックス部は、少なくとも一部が前記船体側に設けられた板状の船体部材により形成されている。 The present invention employs the following means in order to solve the above problems.
According to the first aspect of the present invention, the ship includes a hull, a main engine, a fuel tank, and a tank connection box portion. The hull has a plurality of layers of decks provided at intervals in the ship height direction. The main engine is provided inside the ship. The fuel tank is provided inside the ship. The fuel tank stores liquefied gas fuel or gas fuel to be supplied to the main engine. The tank connection box portion accommodates at least a part of the fuel tank. At least a part of the tank connection box portion is formed of a plate-shaped hull member provided on the hull side.
　このように構成することで、タンク接続ボックス部の少なくとも一部を、船体を構成する船体部材により形成することで、タンク接続ボックス部の少なくとも一部を船体と一体化することができる。これにより、タンク接続ボックス部を設けるためのスペースが少なくて済む。したがって、船体内のスペースの有効利用を図り、積荷スペースや客室等を設けるスペースを増大させることが可能となる。 With this configuration, at least a part of the tank connection box part can be integrated with the hull by forming at least a part of the tank connection box part with the hull members constituting the hull. As a result, the space for providing the tank connection box portion can be reduced. Therefore, it is possible to make effective use of the space inside the ship and increase the space for loading space, guest rooms, and the like.
　この発明の第二態様によれば、第一態様に係る前記燃料タンクは、タンク本体と、タンク突出部と、を備えるようにしてもよい。前記タンク突出部は、前記タンク本体の外面から外側に突出する。前記タンク接続ボックス部は、前記船体部材と、囲壁部材と、を備えるようにしてもよい。前記船体部材は、前記タンク突出部が挿通される挿通孔を有している。前記囲壁部材は、前記船体部材を挟んで前記タンク本体と反対側に配置されている。前記囲壁部材は、前記挿通孔を通して前記船体部材から前記反対側に突出した前記タンク突出部を囲うようにしてもよい。
　このように構成することで、船体部材に形成された挿通孔を通して船体部材の反対側に突出したタンク突出部は、囲壁部材により囲まれる。これにより、タンク本体は、船体部材の第一側に設けられ、タンク接続ボックス部は、船体部材の第二側（反対側）に設けられる。したがって、船体部材の第二側には、タンク突出部を取り囲むタンク接続ボックス部のみが設けられるため、船体部材の第二側におけるスペースを有効利用することができる。また、タンク接続ボックス部のレイアウトが、タンク本体等によって制限されることがない。したがって、船体部材の第二側におけるタンク接続ボックス部のレイアウトの自由度が高まる。船体部材の第一側には、タンク本体のみを設ければよいので、船体部材の第一側でタンク接続ボックス部を設けるためのスペースを確保する必要がない。さらに、船体部材の第一側で、タンク接続ボックス部を設けるためのスペースを考慮することなく、タンク本体の径寸法を最大限に大きくすることが可能となる。その分、タンク本体の軸方向長さを短くすることができる。したがって、船体部材の第一側におけるスペースの有効利用を図ることができる。 According to the second aspect of the present invention, the fuel tank according to the first aspect may include a tank main body and a tank protrusion. The tank protrusion protrudes outward from the outer surface of the tank body. The tank connection box portion may include the hull member and the surrounding wall member. The hull member has an insertion hole through which the tank protrusion is inserted. The surrounding wall member is arranged on the side opposite to the tank main body with the hull member interposed therebetween. The surrounding wall member may surround the tank protruding portion protruding from the hull member to the opposite side through the insertion hole.
With this configuration, the tank protrusion protruding to the opposite side of the hull member through the insertion hole formed in the hull member is surrounded by the surrounding wall member. As a result, the tank body is provided on the first side of the hull member, and the tank connection box portion is provided on the second side (opposite side) of the hull member. Therefore, since only the tank connection box portion surrounding the tank protrusion is provided on the second side of the hull member, the space on the second side of the hull member can be effectively used. Further, the layout of the tank connection box portion is not limited by the tank body or the like. Therefore, the degree of freedom in the layout of the tank connection box portion on the second side of the hull member is increased. Since only the tank body needs to be provided on the first side of the hull member, it is not necessary to secure a space for providing the tank connection box portion on the first side of the hull member. Further, it is possible to maximize the diameter of the tank body on the first side of the hull member without considering the space for providing the tank connection box portion. The axial length of the tank body can be shortened accordingly. Therefore, the space on the first side of the hull member can be effectively used.
　この発明の第三態様によれば、第一又は第二態様に係る前記タンク接続ボックス部を形成する船体部材は、前記甲板を含むようにしてもよい。前記タンク本体は、前記甲板の下側の階層に配置されているようにしてもよい。さらに、前記タンク突出部は、前記挿通孔を通して前記挿通孔を有した前記甲板よりも上方に突出しているようにしてもよい。
　このように構成することで、甲板の上方にタンク突出部を突出させることで、甲板の上側の階層には、タンク接続ボックス部のみを設ければよい。また、甲板の下側の階層には、タンク本体のみを設ければよい。したがって、甲板の上側の階層、及び下側の階層のそれぞれにおいて、スペースの有効利用を図ることができる。 According to the third aspect of the present invention, the hull member forming the tank connection box portion according to the first or second aspect may include the deck. The tank body may be arranged on a lower level of the deck. Further, the tank protrusion may be made to protrude upward from the deck having the insertion hole through the insertion hole.
With this configuration, the tank protruding portion is projected above the deck, so that only the tank connection box portion needs to be provided on the upper layer of the deck. Further, only the tank body needs to be provided on the lower level of the deck. Therefore, effective use of space can be achieved in each of the upper layer and the lower layer of the deck.
　この発明の第四態様によれば、第一から第三態様の何れか一つの態様に係る船舶は、フランジ部と、タンクカバー部と、シール部材と、を備えるようにしてもよい。前記フランジ部は、前記燃料タンクの外面から外側に延びる。前記タンクカバー部は、前記タンク接続ボックス部の内周面から前記フランジ部に向かって延び、前記フランジ部と間隔をあけて設けられている。前記シール部材は、前記フランジ部と前記タンクカバー部との間を塞ぐように設けられている。
　このように構成することで、燃料タンクが設けられた空間と、タンク接続ボックス部内との空間を区画し、気密性を確保することができる。 According to the fourth aspect of the present invention, the ship according to any one of the first to third aspects may include a flange portion, a tank cover portion, and a seal member. The flange portion extends outward from the outer surface of the fuel tank. The tank cover portion extends from the inner peripheral surface of the tank connection box portion toward the flange portion, and is provided at a distance from the flange portion. The sealing member is provided so as to close between the flange portion and the tank cover portion.
With this configuration, the space where the fuel tank is provided and the space inside the tank connection box can be partitioned, and airtightness can be ensured.
　上記船舶によれば、船体内のスペースの有効利用を図り、積荷スペースや客室等を設けるスペースを増大させることが可能となる。 According to the above-mentioned ship, it is possible to make effective use of the space inside the ship and increase the space for loading space, guest rooms, etc.
この発明の第一実施形態における船舶の全体構成を示す側面図である。It is a side view which shows the whole structure of the ship in 1st Embodiment of this invention. 上記船舶の構成を示す図であり，図１のＡ－Ａ矢視平断面図である。It is a figure which shows the structure of the said ship, and is the cross-sectional view taken along the arrow AA of FIG. 上記船舶に設けた燃料タンク及びタンク接続ボックス部を示す側断面図である。It is a side sectional view which shows the fuel tank and the tank connection box part provided in the said ship. 上記船舶に設けた燃料タンク及びタンク接続ボックス部の要部を示す拡大側断面図である。It is an enlarged side sectional view which shows the main part of the fuel tank and the tank connection box part provided in the said ship. 上記船舶の第一実施形態の変形例の構成を示す側断面図である。It is a side sectional view which shows the structure of the modification of the 1st Embodiment of the said ship. この発明の第二実施形態における船舶の構成を示す側断面図である。It is a side sectional view which shows the structure of the ship in 2nd Embodiment of this invention. 上記船舶の平断面図である。It is a plan sectional view of the said ship.
　以下、この発明の一実施形態における船舶を図面に基づき説明する。
（第一実施形態）
　図１は、この実施形態における船舶の全体構成を示す側面図である。図２は、上記船舶の構成を示す図であり，図１のＡ－Ａ矢視平断面図である。図３は、上記船舶に設けた燃料タンク及びタンク接続ボックス部を示す側断面図である。図４は、上記船舶に設けた燃料タンク及びタンク接続ボックス部の要部を示す拡大側断面図である。
　図１、図２に示すように、この実施形態の船舶１は、例えば、車両を運搬可能な車両運搬船である。船舶１は、船体２と、主機８と、燃料タンク２０と、タンク接続ボックス部３０と、を備えている。 Hereinafter, the ship according to the embodiment of the present invention will be described with reference to the drawings.
(First Embodiment)
FIG. 1 is a side view showing the overall configuration of the ship in this embodiment. FIG. 2 is a diagram showing the configuration of the ship, and is a cross-sectional view taken along the line AA of FIG. FIG. 3 is a side sectional view showing a fuel tank and a tank connection box portion provided on the ship. FIG. 4 is an enlarged side sectional view showing a main part of a fuel tank and a tank connection box portion provided on the ship.
As shown in FIGS. 1 and 2, the ship 1 of this embodiment is, for example, a vehicle carrier capable of carrying a vehicle. The ship 1 includes a hull 2, a main engine 8, a fuel tank 20, and a tank connection box portion 30.
　船体２は、舷側３Ａ，３Ｂと、船底４と、複数層の甲板１０と、を有している。舷側３Ａ，３Ｂは、船幅方向Ｄｗ両側の左右舷側をそれぞれ形成する一対の船側外板からなる。船底４は、これら舷側３Ａ，３Ｂを接続する船底外板からなる。これら一対の舷側３Ａ，３Ｂ及び船底４の断面形状は、Ｕ字状に形成されている。 The hull 2 has side 3A and 3B, a ship bottom 4, and a multi-layered deck 10. The side 3A and 3B are composed of a pair of ship side skin plates forming the left and right side sides on both sides of the ship width direction Dw. The ship bottom 4 is composed of a ship bottom outer plate connecting these side 3A and 3B. The cross-sectional shapes of the pair of side 3A and 3B and the bottom 4 are U-shaped.
　図１に示すように、船体２は、車両を船体２内に乗船（ロールオン）または下船（ロールオフ）させるため、ショアランプ７を備えている。ショアランプ７は、例えば、船尾２ｂ等に設けられている。ショアランプ７は、船体２の外側に向けて起倒可能となっている。車両は、ショアランプ７を船体２の外側に倒して展開した状態で、ショアランプ７上を走行して、乗船及び下船する。 As shown in FIG. 1, the hull 2 is provided with a shore lamp 7 in order to allow the vehicle to board (roll on) or disembark (roll off) in the hull 2. The shore lamp 7 is provided, for example, on the stern 2b or the like. The shore lamp 7 can be tilted toward the outside of the hull 2. The vehicle travels on the shore lamp 7 with the shore lamp 7 tilted to the outside of the hull 2 and disembarks and disembarks.
　複数層の甲板１０は、船体２内に船高さ方向Ｄｈに間隔をあけて設けられている。複数層の甲板１０の一つとして、乾舷甲板１１が設けられている。また、複数の甲板１０として、乾舷甲板１１の上方、及び下方に、複数層の甲板１２，１３，１４，１５，１６，１７が設けられている。これら複数層の甲板１０のうち、車両を積み込む車両甲板として用いられる甲板１０には、船高さ方向Ｄｈで隣り合う甲板１０の間を車両が移動するためのランプウェイ（図示せず）が設けられている。 The multi-layered decks 10 are provided in the hull 2 at intervals in the ship height direction Dh. A freeboard deck 11 is provided as one of the multi-layered decks 10. Further, as the plurality of decks 10, a plurality of layers of decks 12, 13, 14, 15, 16 and 17 are provided above and below the freeboard deck 11. Of these multi-layered decks 10, the deck 10 used as the vehicle deck on which the vehicle is loaded is provided with a rampway (not shown) for the vehicle to move between adjacent decks 10 in the ship height direction Dh. Has been done.
　この実施形態で例示する船体２は、乾舷甲板１１の下方に、船底４とともに２重底を構成する底部甲板１８を備えている。 The hull 2 illustrated in this embodiment is provided with a bottom deck 18 forming a double bottom together with the ship bottom 4 below the freeboard deck 11.
　主機８は、船体２内に設けられている。具体的には、主機８は、船体２内部に設けられた機関室Ｓ１に設置されている。船体２の船尾２ｂ側の底部には、プロペラ５と、舵６とが設けられている。プロペラ５は、船体２内に設けられた主機８によって駆動され、船舶１を推進させる推進力を発生させる。舵６は、プロペラ５の後方に設けられ、船体２の進行方向を制御する。 The main engine 8 is provided inside the hull 2. Specifically, the main engine 8 is installed in the engine room S1 provided inside the hull 2. A propeller 5 and a rudder 6 are provided at the bottom of the hull 2 on the stern 2b side. The propeller 5 is driven by a main engine 8 provided in the hull 2 to generate a propulsive force for propelling the ship 1. The rudder 6 is provided behind the propeller 5 and controls the traveling direction of the hull 2.
　燃料タンク２０は、主機８に供給する燃料を貯留している。この実施形態における燃料タンク２０は、底部甲板１８上に配置されている。また、この実施形態では、船幅方向Ｄｗに間をあけて二つの燃料タンク２０が並べて配置されている（図２参照）。さらに、この実施形態で例示する二つの燃料タンク２０は、同一形状であり、船幅方向Ｄｗの中心位置を基準にして左右対称に配置されている。これら燃料タンク２０は、タンク本体２１と、タンク突出部２２と、をそれぞれ備えている。この実施形態で例示する主機８の燃料は、ＬＮＧ（Liquefied Natural Gas）やＬＰＧ（Liquefied Petroleum Gas）等の液化ガスであり、燃料タンク２０は、いわゆる圧力容器である。 The fuel tank 20 stores the fuel to be supplied to the main engine 8. The fuel tank 20 in this embodiment is arranged on the bottom deck 18. Further, in this embodiment, two fuel tanks 20 are arranged side by side with a gap in the ship width direction Dw (see FIG. 2). Further, the two fuel tanks 20 illustrated in this embodiment have the same shape and are arranged symmetrically with respect to the center position in the ship width direction Dw. The fuel tank 20 includes a tank main body 21 and a tank protrusion 22, respectively. The fuel of the main engine 8 illustrated in this embodiment is a liquefied gas such as LNG (Liquefied Natural Gas) or LPG (Liquefied Petroleum Gas), and the fuel tank 20 is a so-called pressure vessel.
　図３に示すように、この実施形態のタンク本体２１は、船首尾方向Ｄａに延びる円筒状をなしている。タンク本体２１は、底部甲板１８上に形成されたタンク室Ｓ２に収容されている。タンク室Ｓ２は、船幅方向Ｄｗに延びる横置隔壁である隔壁１９Ａにより、船尾２ｂ側の機関室Ｓ１と隔てられている。また、タンク室Ｓ２は、船幅方向Ｄｗに延びる横置隔壁である隔壁１９Ｂにより、船首２ａ側の貨物室Ｓ３と隔てられている。この実施形態のタンク室Ｓ２は、貨物室Ｓ３の複数階層に渡る高さを有している。すなわち、貨物室Ｓ３では、タンク室Ｓ２の上側に位置する甲板１５（以下、この甲板１５を上側甲板１５と称する）の下方に、複数の甲板１６、１７が配置されている。 As shown in FIG. 3, the tank body 21 of this embodiment has a cylindrical shape extending in the stern-tail direction Da. The tank body 21 is housed in a tank chamber S2 formed on the bottom deck 18. The tank chamber S2 is separated from the engine room S1 on the stern 2b side by a bulkhead 19A which is a horizontal bulkhead extending in the ship width direction Dw. Further, the tank chamber S2 is separated from the cargo compartment S3 on the bow 2a side by a bulkhead 19B which is a horizontal bulkhead extending in the ship width direction Dw. The tank chamber S2 of this embodiment has a height over a plurality of layers of the cargo compartment S3. That is, in the cargo compartment S3, a plurality of decks 16 and 17 are arranged below the deck 15 located above the tank chamber S2 (hereinafter, the deck 15 is referred to as the upper deck 15).
　図４に示すように、タンク突出部２２は、タンク本体２１の外周面（外面）から径方向外側に突出する。この実施形態において、タンク突出部２２は、タンク本体２１から船体上方に向かって突出している。タンク突出部２２は、筒状部２２ａと、ドーム部２２ｂと、を有している。筒状部２２ａは、タンク本体２１の上面から鉛直上方に延びる円筒状をなしている。ドーム部２２ｂは、筒状部２２ａの上側に連続して形成されている。ドーム部２２ｂは、上方に向かって凸となる半球状をなしている。ドーム部２２ｂは、筒状部２２ａの上方を塞ぐように形成されている。 As shown in FIG. 4, the tank projecting portion 22 projects radially outward from the outer peripheral surface (outer surface) of the tank body 21. In this embodiment, the tank protrusion 22 projects upward from the tank body 21 toward the hull. The tank protrusion 22 has a tubular portion 22a and a dome portion 22b. The tubular portion 22a has a cylindrical shape extending vertically upward from the upper surface of the tank body 21. The dome portion 22b is continuously formed on the upper side of the tubular portion 22a. The dome portion 22b has a hemispherical shape that is convex upward. The dome portion 22b is formed so as to close the upper part of the tubular portion 22a.
　タンク室Ｓ２の上側に位置する上側甲板１５は、船高さ方向Ｄｈに貫通する挿通孔３４を備えている。タンク突出部２２は、上側甲板１５の挿通孔３４を通して、上側甲板１５の直ぐ上の階層Ｓ４に突出している。つまり、タンク突出部２２は、上側甲板１５よりも上方に突出している。 The upper deck 15 located above the tank chamber S2 is provided with an insertion hole 34 penetrating in the ship height direction Dh. The tank protrusion 22 projects to the layer S4 immediately above the upper deck 15 through the insertion hole 34 of the upper deck 15. That is, the tank protrusion 22 protrudes above the upper deck 15.
　タンク接続ボックス部３０は、タンク本体２１の上側に位置する上側甲板１５上に設けられている。タンク接続ボックス部３０は、タンク本体２１が設けられたタンク室Ｓ２の上側の階層Ｓ４に設けられている。タンク接続ボックス部３０は、中空箱状をなしている。図２に示すように、この実施形態のタンク接続ボックス部３０は、船幅方向Ｄｗに長軸方向を有する平面視長方形状をなしている。タンク接続ボックス部３０は、上側甲板１５から上方に突出したタンク突出部２２を取り囲んでいる。この実施形態では、船幅方向Ｄｗに並んだ２つの燃料タンク２０のタンク突出部２２を一つのタンク接続ボックス部３０により取り囲んでいる。 The tank connection box portion 30 is provided on the upper deck 15 located above the tank body 21. The tank connection box portion 30 is provided in the upper layer S4 of the tank chamber S2 in which the tank main body 21 is provided. The tank connection box portion 30 has a hollow box shape. As shown in FIG. 2, the tank connection box portion 30 of this embodiment has a rectangular shape in a plan view having a long axis direction in the ship width direction Dw. The tank connection box portion 30 surrounds the tank protrusion 22 that protrudes upward from the upper deck 15. In this embodiment, the tank protrusions 22 of the two fuel tanks 20 arranged in the ship width direction Dw are surrounded by one tank connection box portion 30.
　図４に示すように、タンク接続ボックス部３０は、底板部３１と、側板部３２と、天板部３３と、を有している。上側甲板１５よりも上側の階層Ｓ４において、このタンク接続ボックス部３０は、気密に構成されている。言い換えれば、階層Ｓ４において、タンク接続ボックス部３０の内部空間と、タンク接続ボックス部３０よりも外側の空間との間では、気体が流通しないように密閉されている。 As shown in FIG. 4, the tank connection box portion 30 has a bottom plate portion 31, a side plate portion 32, and a top plate portion 33. In the layer S4 above the upper deck 15, the tank connection box portion 30 is airtightly configured. In other words, in the layer S4, the internal space of the tank connection box portion 30 and the space outside the tank connection box portion 30 are sealed so that gas does not flow.
　底板部３１は、船体２を構成する上側甲板１５により形成されている。つまり、上側甲板１５の一部は、タンク接続ボックス部３０の底板部３１を兼ねている。上側甲板１５は、船体２を構成する板状の船体部材３１ｓである。 The bottom plate portion 31 is formed by the upper deck 15 constituting the hull 2. That is, a part of the upper deck 15 also serves as the bottom plate portion 31 of the tank connection box portion 30. The upper deck 15 is a plate-shaped hull member 31s that constitutes the hull 2.
　側板部３２は、上側甲板１５（言い換えれば、底板部３１）上に設けられている。側板部３２は、平面視で、２つの燃料タンク２０のタンク突出部２２の周囲を取り囲むように配置されている。側板部３２は、例えば、平面視長方形状をなしている。側板部３２は、２つのタンク突出部２２に対し、船首尾方向Ｄａ及び船幅方向Ｄｗに間隔をあけて設けられている。側板部３２は、上側甲板１５とは別部材からなる板状の囲壁部材３２ｐにより形成されている。 The side plate portion 32 is provided on the upper deck 15 (in other words, the bottom plate portion 31). The side plate portion 32 is arranged so as to surround the periphery of the tank protrusion 22 of the two fuel tanks 20 in a plan view. The side plate portion 32 has, for example, a rectangular shape in a plan view. The side plate portions 32 are provided at intervals in the stern-tail direction Da and the ship width direction Dw with respect to the two tank protrusions 22. The side plate portion 32 is formed by a plate-shaped surrounding wall member 32p made of a member different from the upper deck 15.
　天板部３３は、側板部３２の上方を塞ぐように設けられている。天板部３３は、船体２を構成する乾舷甲板１１により形成されている。つまり、乾舷甲板１１の一部は、タンク接続ボックス部３０の天板部３３を兼ねている。乾舷甲板１１は、船体２を構成する板状の船体部材３３ｓである。 The top plate portion 33 is provided so as to close the upper portion of the side plate portion 32. The top plate portion 33 is formed by the freeboard deck 11 constituting the hull 2. That is, a part of the freeboard deck 11 also serves as the top plate portion 33 of the tank connection box portion 30. The freeboard deck 11 is a plate-shaped hull member 33s that constitutes the hull 2.
　このように、タンク接続ボックス部３０は、船体部材３１ｓと、囲壁部材３２ｐと、船体部材３３ｓと、を備えている。船体部材３１ｓは、タンク突出部２２が挿通される挿通孔３４を有している。囲壁部材３２ｐは、タンク本体２１に対し、船体部材３１ｓを挟んで反対側（上側）に配置されている。囲壁部材３２ｐは、挿通孔３４を通して船体部材３１ｓから反対側に突出したタンク突出部２２を囲っている。 As described above, the tank connection box portion 30 includes a hull member 31s, a wall member 32p, and a hull member 33s. The hull member 31s has an insertion hole 34 into which the tank protrusion 22 is inserted. The surrounding wall member 32p is arranged on the opposite side (upper side) of the tank body 21 with the hull member 31s interposed therebetween. The surrounding wall member 32p surrounds the tank protruding portion 22 protruding to the opposite side from the hull member 31s through the insertion hole 34.
　タンク接続ボックス部３０は、燃料タンク２０の一部であるタンク突出部２２と、燃料タンク２０に接続される配管（図示せず）や弁（図示せず）を収容している。 The tank connection box portion 30 accommodates a tank protrusion 22 which is a part of the fuel tank 20 and pipes (not shown) and valves (not shown) connected to the fuel tank 20.
　タンク接続ボックス部３０内に収容された燃料タンク２０のタンク突出部２２には、タンク側フランジ部材（フランジ部）２５が設けられている。タンク側フランジ部材２５は、燃料タンク２０のタンク突出部２２の外周面（より具体的には、筒状部２２ａ）から径方向外側に延び、タンク突出部２２の周方向に連続した環状に形成されている。タンク側フランジ部材２５は、上側甲板１５の上方に間隔をあけて形成されている。 A tank-side flange member (flange portion) 25 is provided on the tank protrusion 22 of the fuel tank 20 housed in the tank connection box portion 30. The tank-side flange member 25 extends radially outward from the outer peripheral surface (more specifically, the tubular portion 22a) of the tank protrusion 22 of the fuel tank 20, and is formed in an annular shape continuous in the circumferential direction of the tank protrusion 22. Has been done. The tank-side flange members 25 are formed at intervals above the upper deck 15.
　一方で、上側甲板１５上には、タンクカバー部３５が設けられている。タンクカバー部３５は、燃料タンク２０のタンク突出部２２を取り囲むように設けられている。タンクカバー部３５は、タンク突出部２２の外周面に対し、径方向外側に間隔をあけて設けられている。言い換えれば、タンクカバー部３５は、挿通孔３４の内周縁に沿って環状に形成されている。タンクカバー部３５は、上側甲板１５から上方に向かって延びる筒状をなしている。タンクカバー部３５の上端には、水平方向両側に広がる上端フランジ３５ａが一体に設けられている。タンクカバー部３５の上端フランジ３５ａは、タンク側フランジ部材２５の鉛直下方に配置されている。タンクカバー部３５の上端フランジ３５ａと、タンク側フランジ部材２５とは、船高さ方向Ｄｈに間隔をあけて対向している。 On the other hand, a tank cover portion 35 is provided on the upper deck 15. The tank cover portion 35 is provided so as to surround the tank protrusion 22 of the fuel tank 20. The tank cover portion 35 is provided at intervals outward in the radial direction with respect to the outer peripheral surface of the tank protrusion portion 22. In other words, the tank cover portion 35 is formed in an annular shape along the inner peripheral edge of the insertion hole 34. The tank cover portion 35 has a tubular shape extending upward from the upper deck 15. An upper end flange 35a extending on both sides in the horizontal direction is integrally provided at the upper end of the tank cover portion 35. The upper end flange 35a of the tank cover portion 35 is arranged vertically below the tank side flange member 25. The upper end flange 35a of the tank cover portion 35 and the tank side flange member 25 face each other with a gap in the ship height direction Dh.
　シール部材４０は、タンク側フランジ部材２５とタンクカバー部３５との間を塞ぐように設けられている。シール部材４０は、ゴム系材料等、気密性、及び弾性を有した材料から形成されている。シール部材４０は、燃料タンク２０のタンク突出部２２とタンク接続ボックス部３０との間における気密性を確保する。シール部材４０は、さらに、船体２と燃料タンク２０との熱膨張係数の違い等により、タンク突出部２２とタンク接続ボックス部３０との相対変位が生じた場合であっても、弾性変形して気密性を維持できるようになっている。 The seal member 40 is provided so as to close between the tank side flange member 25 and the tank cover portion 35. The seal member 40 is made of a material having airtightness and elasticity such as a rubber-based material. The seal member 40 ensures airtightness between the tank protrusion 22 of the fuel tank 20 and the tank connection box portion 30. Further, the seal member 40 is elastically deformed even when the relative displacement between the tank protrusion 22 and the tank connection box 30 occurs due to the difference in the coefficient of thermal expansion between the hull 2 and the fuel tank 20. It is possible to maintain airtightness.
　したがって、上述した第一実施形態の船舶１によれば、タンク接続ボックス部３０の少なくとも一部である底板部３１を、船体２を構成する船体部材３１ｓである上側甲板１５により形成した。これにより、タンク接続ボックス部３０の少なくとも一部を船体２と一体化された上側甲板１５により形成することができる。その結果、船体２内のスペースの有効利用を図り、積荷スペースや客室等を設けるスペースを増大させることが可能となる。
　とりわけ、船舶１が車両を運搬する場合には、車両甲板における車両の積載数の減少を抑制することができる点で有利となる。 Therefore, according to the ship 1 of the first embodiment described above, the bottom plate portion 31 which is at least a part of the tank connection box portion 30 is formed by the upper deck 15 which is the hull member 31s constituting the hull 2. As a result, at least a part of the tank connection box portion 30 can be formed by the upper deck 15 integrated with the hull 2. As a result, it is possible to effectively use the space in the hull 2 and increase the space for loading the cargo space, the guest room, and the like.
In particular, when the ship 1 transports a vehicle, it is advantageous in that a decrease in the number of vehicles loaded on the vehicle deck can be suppressed.
　上述した実施形態では、燃料タンク２０が、筒状のタンク本体２１と、タンク突出部２２と、を備えるようにした。さらに、タンク接続ボックス部３０を形成する囲壁部材３２ｐ、３３ｐは、タンク本体２１に対して船体部材３１ｓを挟んで反対側に配置されるようにした。また、囲壁部材３２ｐ、３３ｐは、挿通孔３４を通して船体部材３１ｓから反対側に突出したタンク突出部２２を囲うようにした。 In the above-described embodiment, the fuel tank 20 is provided with a tubular tank body 21 and a tank protrusion 22. Further, the surrounding wall members 32p and 33p forming the tank connection box portion 30 are arranged on the opposite side of the tank body 21 with the hull member 31s interposed therebetween. Further, the surrounding wall members 32p and 33p surround the tank protruding portion 22 protruding to the opposite side from the hull member 31s through the insertion hole 34.
　これにより、タンク本体２１を、船体部材３１ｓである上側甲板１５の下側（第一側）に配置し、タンク接続ボックス部３０を、上側甲板１５の上側（第二側）に配置することができる。上側甲板１５の上側には、タンク突出部２２を取り囲むタンク接続ボックス部３０のみが設けられるため、上側甲板１５の上側の階層Ｓ４におけるスペースを有効利用することができる。また、タンク接続ボックス部３０のレイアウトが、タンク本体２１によって制限されることがない。そのため、船体部材３１ｓの上側におけるタンク接続ボックス部３０のレイアウトの自由度も高まる。これにより、上側甲板１５の上側の階層Ｓ４において、積荷スペース等を設けるスペースを有効利用することが可能となる。 As a result, the tank body 21 can be arranged on the lower side (first side) of the upper deck 15 which is the hull member 31s, and the tank connection box portion 30 can be arranged on the upper side (second side) of the upper deck 15. it can. Since only the tank connection box portion 30 surrounding the tank protrusion 22 is provided on the upper side of the upper deck 15, the space in the upper layer S4 of the upper deck 15 can be effectively used. Further, the layout of the tank connection box portion 30 is not limited by the tank main body 21. Therefore, the degree of freedom in the layout of the tank connection box portion 30 on the upper side of the hull member 31s is also increased. As a result, in the upper layer S4 of the upper deck 15, it is possible to effectively utilize the space for providing the loading space and the like.
　また、船体部材３１ｓの下側には、タンク本体２１のみを設ければよいので、タンク室Ｓ２にタンク接続ボックス部３０を設けるためのスペースを確保する必要がない。そのため、タンク本体２１の径寸法を、タンク室Ｓ２の船高さ方向Ｄｈの室内寸法に応じて最大限に大きくすることができる。さらに、タンク容量一定の場合には、タンク本体２１の径寸法を最大限に大きくする分、タンク本体２１の軸方向長さを短くすることができる。その結果、船体部材３１ｓである上側甲板１５の下側のタンク室Ｓ２のスペースの有効利用を図ることができる。 Further, since only the tank body 21 needs to be provided under the hull member 31s, it is not necessary to secure a space for providing the tank connection box portion 30 in the tank chamber S2. Therefore, the diameter dimension of the tank body 21 can be maximized according to the interior dimension of the tank chamber S2 in the ship height direction Dh. Further, when the tank capacity is constant, the axial length of the tank body 21 can be shortened by the amount that the diameter dimension of the tank body 21 is maximized. As a result, the space of the tank chamber S2 below the upper deck 15 which is the hull member 31s can be effectively used.
　また、タンク本体２１は、上側甲板１５の下側の階層のタンク室Ｓ２に配置されている。さらに、タンク突出部２２は、挿通孔３４を通して上側甲板１５から上方に突出している。
　このように構成することで、上側甲板１５の上側の階層Ｓ４には、タンク本体２１を設けることなく、タンク突出部２２を取り囲むタンク接続ボックス部３０のみを設ければよい。また、上側甲板１５の下側の階層であるタンク室Ｓ２には、タンク本体２１のみを設ければよい。その結果、上側甲板１５の上側の階層Ｓ４、及び下側の階層のそれぞれにおいて、スペースの有効利用を図ることができる。 Further, the tank body 21 is arranged in the tank chamber S2 on the lower level of the upper deck 15. Further, the tank protrusion 22 projects upward from the upper deck 15 through the insertion hole 34.
With this configuration, the upper layer S4 of the upper deck 15 may be provided with only the tank connection box portion 30 surrounding the tank protrusion 22 without providing the tank main body 21. Further, only the tank main body 21 needs to be provided in the tank chamber S2, which is the lower layer of the upper deck 15. As a result, effective use of space can be achieved in each of the upper layer S4 and the lower layer of the upper deck 15.
　また、タンク側フランジ部材２５とタンクカバー部３５との間を塞ぐようシール部材４０が設けられている。このように構成することで、上側甲板１５の下側のタンク室Ｓ２と上側甲板１５の上側の階層Ｓ４のタンク接続ボックス部３０内の空間とを区画し、気密性を確保することができる。また、船体２と燃料タンク２０との熱膨張係数の違い等によりタンク突出部２２とタンク接続ボックス部３０とが相対変位した場合であっても、シール部材４０が弾性変形して気密性を維持できる。 Further, a seal member 40 is provided so as to close the space between the tank side flange member 25 and the tank cover portion 35. With this configuration, the space in the tank connection box portion 30 of the lower layer S4 of the upper deck 15 and the tank chamber S2 on the lower side of the upper deck 15 can be partitioned, and airtightness can be ensured. Further, even when the tank protrusion 22 and the tank connection box 30 are relatively displaced due to a difference in the coefficient of thermal expansion between the hull 2 and the fuel tank 20, the seal member 40 elastically deforms to maintain airtightness. it can.
（第一実施形態の変形例）
　図５は、上記船舶の第一実施形態の変形例における構成を示す側断面図である。
　図５に示すように、上側甲板１５の上側の階層Ｓ４には、例えば、配管区画Ｓ６、関連機器室Ｓ７等を設けるようにしても良い。配管区画Ｓ６は、船高さ方向Ｄｈに延び、船上から燃料タンク２０内に燃料を供給する燃料供給配管が収容されている。関連機器室Ｓ７には、燃料タンク２０に付随して設けられる各種の機器等が収容されている。これら配管区画Ｓ６、関連機器室Ｓ７は、タンク接続ボックス部３０の周囲に配置され、タンク接続ボックス部３０に隣接している。この実施形態では、タンク接続ボックス部３０の船幅方向Ｄｗの第一側に配管区画室Ｓ６が配置され、タンク接続ボックス部３０の船幅方向Ｄｗの第二側に関連機器室Ｓ７が配置される場合を例示している。このように構成することで、上側甲板１５の上側の階層Ｓ４にて、タンク接続ボックス部３０の周囲のスペースを有効利用することができる。 (Modified example of the first embodiment)
FIG. 5 is a side sectional view showing a configuration in a modified example of the first embodiment of the ship.
As shown in FIG. 5, for example, a piping section S6, a related equipment room S7, and the like may be provided in the upper layer S4 of the upper deck 15. The pipe section S6 extends in the ship height direction Dh, and accommodates a fuel supply pipe that supplies fuel into the fuel tank 20 from the ship. In the related equipment room S7, various equipments and the like provided attached to the fuel tank 20 are housed. These piping sections S6 and related equipment room S7 are arranged around the tank connection box portion 30 and are adjacent to the tank connection box portion 30. In this embodiment, the piping compartment S6 is arranged on the first side of the tank connection box portion 30 in the ship width direction Dw, and the related equipment room S7 is arranged on the second side of the tank connection box portion 30 in the ship width direction Dw. The case is illustrated. With this configuration, the space around the tank connection box portion 30 can be effectively used in the upper layer S4 of the upper deck 15.
（第二実施形態）
　次に、この発明に係る船舶第二実施形態について説明する。以下に説明する第二実施形態においては、第一実施形態と同一部分に同一符号を付して説明するとともに、重複説明を省略する。 (Second Embodiment)
Next, the second embodiment of the ship according to the present invention will be described. In the second embodiment described below, the same parts as those in the first embodiment are designated by the same reference numerals, and duplicate description will be omitted.
　図６は、この発明の第二実施形態における船舶の構成を示す図３に相当する断面図である。図７は、この発明の第二実施形態における船舶の図２に相当する断面図である。
　図６、図７に示すように、この第二実施形態における船舶１Ｂは、燃料タンク５０を備えている。燃料タンク５０は、船体２内の底部甲板１８上に配置されている。燃料タンク５０は、主機８（図１参照）に供給する燃料を貯留している。この第二実施形態の燃料タンク５０は、第一実施形態の燃料タンク２０と同様に、二つ設けられている。これら二つの燃料タンク５０は、船幅方向Ｄｗに間隔をあけて並んで配置されている。二つの燃料タンク５０は、同一形状であり、船幅方向Ｄｗの中心位置を基準にして左右対称に配置されている。 FIG. 6 is a cross-sectional view corresponding to FIG. 3 showing the configuration of a ship according to the second embodiment of the present invention. FIG. 7 is a cross-sectional view corresponding to FIG. 2 of the ship according to the second embodiment of the present invention.
As shown in FIGS. 6 and 7, the ship 1B in the second embodiment includes a fuel tank 50. The fuel tank 50 is arranged on the bottom deck 18 in the hull 2. The fuel tank 50 stores fuel to be supplied to the main engine 8 (see FIG. 1). Two fuel tanks 50 of the second embodiment are provided as in the fuel tank 20 of the first embodiment. These two fuel tanks 50 are arranged side by side at intervals in the ship width direction Dw. The two fuel tanks 50 have the same shape and are arranged symmetrically with respect to the center position in the ship width direction Dw.
　燃料タンク５０は、船首尾方向Ｄａに延びる円筒状をなしている。燃料タンク５０は、底部甲板１８上に形成されたタンク室Ｓ２に収容されている。タンク室Ｓ２は、隔壁１９Ａにより、船尾２ｂ側の機関室Ｓ１と隔てられている。また、タンク室Ｓ２は、隔壁１９Ｂにより、船首２ａ側の貨物室Ｓ３と隔てられている。 The fuel tank 50 has a cylindrical shape extending in the stern direction Da. The fuel tank 50 is housed in a tank chamber S2 formed on the bottom deck 18. The tank chamber S2 is separated from the engine room S1 on the stern 2b side by the partition wall 19A. Further, the tank chamber S2 is separated from the cargo compartment S3 on the bow 2a side by the partition wall 19B.
　タンク接続ボックス部６０は、燃料タンク５０と同じタンク室Ｓ２に設けられている。タンク接続ボックス部６０は、中空箱状をなしている。この第二実施形態におけるタンク接続ボックス部６０は、船幅方向Ｄｗに長軸方向を有する平面視長方形状をなしている。タンク接続ボックス部６０は、船首尾方向Ｄａにおける燃料タンク５０の船尾２ｂに近い側に設けられている。より具体的には、タンク接続ボックス部６０は、燃料タンク５０の船尾２ｂ側のタンク端部５２を取り囲むように設けられている。この第二実施形態のタンク接続ボックス部６０は、船幅方向Ｄｗに並んだ２つの燃料タンク５０のタンク端部５２を取り囲んでいる。 The tank connection box portion 60 is provided in the same tank chamber S2 as the fuel tank 50. The tank connection box portion 60 has a hollow box shape. The tank connection box portion 60 in the second embodiment has a rectangular shape in a plan view having a long axis direction in the ship width direction Dw. The tank connection box portion 60 is provided on the side of the fuel tank 50 near the stern 2b in the stern direction Da. More specifically, the tank connection box portion 60 is provided so as to surround the tank end portion 52 on the stern 2b side of the fuel tank 50. The tank connection box portion 60 of the second embodiment surrounds the tank end portions 52 of the two fuel tanks 50 arranged side by side in the ship width direction Dw.
　タンク接続ボックス部６０は、底板部６１と、端板部６２と、側板部６３と、天板部６４と、を有している。 The tank connection box portion 60 has a bottom plate portion 61, an end plate portion 62, a side plate portion 63, and a top plate portion 64.
　底板部６１は、底部甲板１８により形成されている。底部甲板１８は、船体２を構成する板状の船体部材６１ｓである。
　端板部６２は、底部甲板１８上に設けられている。端板部６２は、タンク端部５２に対し、船尾２ｂ側に間隔をあけて設けられている。この実施形態において端板部６２は、隔壁１９Ａにより形成されている。隔壁１９Ａは、船体２を構成する板状の船体部材６２ｓである。
　側板部６３は、２つの燃料タンク５０の船幅方向Ｄｗ両側にそれぞれ設けられている。側板部６３は、端板部６２から船首２ａ側に向かって延び、タンク端部５２の船幅方向Ｄｗ両側に間隔をあけて設けられている。
　天板部６４は、上側甲板１５により形成されている。上側甲板１５は、船体２を構成する板状の船体部材６４ｓである。 The bottom plate portion 61 is formed by the bottom deck 18. The bottom deck 18 is a plate-shaped hull member 61s that constitutes the hull 2.
The end plate portion 62 is provided on the bottom deck 18. The end plate portion 62 is provided at a distance on the stern 2b side with respect to the tank end portion 52. In this embodiment, the end plate portion 62 is formed by the partition wall 19A. The partition wall 19A is a plate-shaped hull member 62s that constitutes the hull 2.
The side plate portions 63 are provided on both sides of the two fuel tanks 50 in the ship width direction Dw, respectively. The side plate portion 63 extends from the end plate portion 62 toward the bow 2a side, and is provided at intervals on both sides of the tank end portion 52 in the ship width direction Dw.
The top plate portion 64 is formed by the upper deck 15. The upper deck 15 is a plate-shaped hull member 64s that constitutes the hull 2.
　このように、タンク接続ボックス部６０の一部は、船体部材６１ｓ、６２ｓ、６４ｓにより形成されている。タンク接続ボックス部６０は、燃料タンク５０の一部であるタンク端部５２と、燃料タンク５０に接続される配管（図示せず）や弁（図示せず）と、を収容している。 As described above, a part of the tank connection box portion 60 is formed of hull members 61s, 62s, 64s. The tank connection box portion 60 accommodates a tank end portion 52, which is a part of the fuel tank 50, and pipes (not shown) and valves (not shown) connected to the fuel tank 50.
　タンク接続ボックス部６０内において、燃料タンク５０のタンク端部５２には、タンク側フランジ部材（フランジ部）５５が設けられている。タンク側フランジ部材５５は、燃料タンク５０の外周面から径方向外側に延びている。タンク側フランジ部材５５は、燃料タンク５０の周方向に連続した環状に形成されている。 In the tank connection box portion 60, a tank side flange member (flange portion) 55 is provided at the tank end portion 52 of the fuel tank 50. The tank-side flange member 55 extends radially outward from the outer peripheral surface of the fuel tank 50. The tank-side flange member 55 is formed in an annular shape continuous in the circumferential direction of the fuel tank 50.
　一方で、タンク接続ボックス部６０の内面には、タンクカバー部６５が設けられている。タンクカバー部６５は、燃料タンク５０のタンク端部５２を取り囲むように設けられている。タンクカバー部６５は、タンク端部５２の外周面に対し、径方向外側に間隔をあけて設けられている。タンクカバー部６５は、底部甲板１８、側板部６３、及び上側甲板１５から、タンク端部５２の外周面に向かって延びている。タンクカバー部６５は、タンク側フランジ部材５５の径方向外側に間隔をあけて対向している。 On the other hand, a tank cover portion 65 is provided on the inner surface of the tank connection box portion 60. The tank cover portion 65 is provided so as to surround the tank end portion 52 of the fuel tank 50. The tank cover portion 65 is provided at intervals outward in the radial direction with respect to the outer peripheral surface of the tank end portion 52. The tank cover portion 65 extends from the bottom deck 18, the side plate 63, and the upper deck 15 toward the outer peripheral surface of the tank end 52. The tank cover portion 65 faces the tank side flange member 55 on the outer side in the radial direction at intervals.
　シール部材７０は、タンク側フランジ部材５５とタンクカバー部６５との間を塞ぐように設けられている。シール部材７０は、ゴム系材料等、気密性、及び弾性を有した材料から形成されている。シール部材７０は、燃料タンク５０のタンク端部５２が収容されたタンク接続ボックス部６０の内外における気密性を確保する。さらに、シール部材７０は、第一実施形態のシール部材４０と同様に、船体２と燃料タンク５０との熱膨張係数の違い等により、タンク端部５２とタンク接続ボックス部３０との相対変位が生じた場合であっても、弾性変形して気密性を維持できるようになっている。 The seal member 70 is provided so as to close between the tank side flange member 55 and the tank cover portion 65. The seal member 70 is made of a material having airtightness and elasticity such as a rubber-based material. The seal member 70 ensures airtightness inside and outside the tank connection box portion 60 in which the tank end portion 52 of the fuel tank 50 is housed. Further, in the seal member 70, as in the seal member 40 of the first embodiment, the relative displacement between the tank end portion 52 and the tank connection box portion 30 is caused by the difference in the coefficient of thermal expansion between the hull 2 and the fuel tank 50. Even if it occurs, it is elastically deformed so that airtightness can be maintained.
　したがって、上述した第二実施形態の船舶１Ｂによれば、タンク接続ボックス部６０の一部を構成する底板部６１、端板部６２、天板部６４を、船体２側に設けられた板状の船体部材６１ｓ、６２ｓ、６４ｓである底部甲板１８、隔壁１９Ａ、及び上側甲板１５により形成した。また、燃料タンク５０のタンク端部５２は、タンク接続ボックス部６０内に収容されている。これにより、タンク接続ボックス部６０を設けるためのスペースが少なくて済む。その結果、船体２内のスペースの有効利用を図り、積荷スペースや客室等を設けるスペースを増大させることが可能となる。 Therefore, according to the ship 1B of the second embodiment described above, the bottom plate portion 61, the end plate portion 62, and the top plate portion 64 that form a part of the tank connection box portion 60 are plate-shaped provided on the hull 2 side. It was formed by the bottom deck 18, the partition wall 19A, and the upper deck 15, which are the hull members 61s, 62s, and 64s. Further, the tank end portion 52 of the fuel tank 50 is housed in the tank connection box portion 60. As a result, the space for providing the tank connection box portion 60 can be reduced. As a result, it is possible to effectively use the space in the hull 2 and increase the space for loading the cargo space, the guest room, and the like.
（その他の変形例）
　なお、この発明は、上述した実施形態に限定されるものではなく、この発明の趣旨を逸脱しない範囲において、上述した実施形態に種々の変更を加えたものを含む。すなわち、実施形態で挙げた具体的な形状や構成等は一例にすぎず、適宜変更が可能である。
　例えば、船舶１、１Ｂの船体２内における甲板１０の階層数も、適宜変更可能である。 (Other variants)
It should be noted that the present invention is not limited to the above-described embodiment, and includes various modifications of the above-described embodiment without departing from the spirit of the present invention. That is, the specific shape, configuration, and the like given in the embodiment are merely examples, and can be changed as appropriate.
For example, the number of layers of the deck 10 in the hull 2 of the ships 1 and 1B can be changed as appropriate.
　さらに、燃料タンク２０、５０の設置数、形状、構造等は、適宜変更可能である。例えば、第一、第二実施形態では、二つの燃料タンク５０が同一形状である場合を一例にして説明したが、同一形状に限られない。また、第一、第二実施形態では、燃料タンク５０を底部甲板１８上に配置する場合について説明したが、底部甲板１８は、底部甲板１８よりも上の階層の甲板１０上に配置してもよい。 Furthermore, the number, shape, structure, etc. of the fuel tanks 20 and 50 can be changed as appropriate. For example, in the first and second embodiments, the case where the two fuel tanks 50 have the same shape has been described as an example, but the shape is not limited to the same. Further, in the first and second embodiments, the case where the fuel tank 50 is arranged on the bottom deck 18 has been described, but the bottom deck 18 may be arranged on the deck 10 at a level higher than the bottom deck 18. Good.
　さらに、第一、第二実施形態では、燃料タンク２０，５０が船首尾方向Ｄａに延びる場合を例示した。しかし、燃料タンク２０，５０は、船幅方向Ｄｗに延びるようにしてもよい。第一、第二実施形態では、燃料タンク２０，５０に貯留される燃料が液体である液化ガスの場合について説明した。しかし、燃料タンク２０，５０に貯留される燃料は、液体に限られない。例えば、天然ガスや石油ガス等の気体状態の燃料であってもよい。 Further, in the first and second embodiments, the case where the fuel tanks 20 and 50 extend in the stern direction Da is illustrated. However, the fuel tanks 20 and 50 may extend in the ship width direction Dw. In the first and second embodiments, the case where the fuel stored in the fuel tanks 20 and 50 is a liquid liquefied gas has been described. However, the fuel stored in the fuel tanks 20 and 50 is not limited to the liquid. For example, it may be a fuel in a gaseous state such as natural gas or petroleum gas.
　また、上述した第一、第二実施形態では、二つの燃料タンク５０が同一の水密区画（タンク室）Ｓ２に配置される場合を一例にして説明したが、二つの燃料タンク５０は、それぞれ異なる隣り合う水密区画に配置されていてもよい。言い換えれば、二つの燃料タンク５０の間には、縦通隔壁が配置されるようにしてもよい。 Further, in the first and second embodiments described above, the case where the two fuel tanks 50 are arranged in the same watertight compartment (tank chamber) S2 has been described as an example, but the two fuel tanks 50 are different from each other. They may be arranged in adjacent watertight compartments. In other words, a longitudinal partition wall may be arranged between the two fuel tanks 50.
　さらに、上述した第一、第二実施形態では、タンク室Ｓ２の船幅方向Ｄｗの側壁を舷側３Ａ，３Ｂによって形成する場合を例示した。しかし、タンク室Ｓ２の船幅方向Ｄｗの側壁は、舷側３Ａ，３Ｂに限られない。タンク室Ｓ２の船幅方向Ｄｗの側壁として、舷側３Ａ，３Ｂよりも船幅方向Ｄｗ内側に縦通隔壁を配置するようにしてもよい。また、タンク室Ｓ２の船幅方向Ｄｗの寸法は、例えば、燃料タンク５０の配置スペースの大きさに応じた大きさにしてもよい。 Further, in the first and second embodiments described above, the case where the side wall of the tank chamber S2 in the width direction Dw is formed by the side 3A and 3B is illustrated. However, the side wall of the tank chamber S2 in the ship width direction Dw is not limited to the side 3A and 3B. As a side wall of the tank chamber S2 in the ship width direction Dw, a longitudinal partition wall may be arranged inside the ship width direction Dw rather than the side 3A and 3B. Further, the dimension of the tank chamber S2 in the ship width direction Dw may be, for example, a size corresponding to the size of the arrangement space of the fuel tank 50.
　また、船舶１の船種は特定のものに限られず、例えばフェリー、ＲＯＲＯ船（Ｒｏｌｌ－ｏｎ／Ｒｏｌｌ－ｏｆｆ船）、ＰＣＴＣ（Ｐｕｒｅ　Ｃａｒ　＆　Ｔｒｕｃｋ　Ｃａｒｒｉｅｒ）、旅客船等、種々の船種を採用できる。 Further, the ship type of the ship 1 is not limited to a specific one, and various ship types such as a ferry, a RORO ship (Roll-on / Roll-off ship), a PCTC (Pure Car & Truck Carrier), and a passenger ship can be adopted. ..
　上記船舶によれば、船体内のスペースの有効利用を図り、積荷スペースや客室等を設けるスペースを増大させることが可能となる。 According to the above-mentioned ship, it is possible to make effective use of the space inside the ship and increase the space for loading space, guest rooms, etc.
１、１Ｂ　船舶
２　船体
２ａ　船首
２ｂ　船尾
３Ａ、３Ｂ　舷側
４　船底
５　プロペラ
６　舵
７　ショアランプ
８　主機
１０　甲板
１１　乾舷甲板
１２、１３、１４、１６、１７　甲板
１５　上側甲板（甲板）
１８　底部甲板
１９Ａ、１９Ｂ　隔壁
２０、５０　燃料タンク
２１　タンク本体
２２　タンク突出部
２２ａ　筒状部
２２ｂ　ドーム部
２５、５５　タンク側フランジ部材（フランジ部）
３０、６０　タンク接続ボックス部
３１、６１　底板部
３１ｓ、３３ｓ、６１ｓ、６２ｓ、６４ｓ　船体部材
３２、６３　側板部
３２ｐ　囲壁部材
３３、６４　天板部
３４　挿通孔
３５、６５　タンクカバー部
３５ａ　上端フランジ
４０、７０　シール部材
５２　タンク端部
６２　端板部
Ｓ１　機関室
Ｓ２　タンク室
Ｓ３　貨物室
Ｓ４　階層
Ｓ６　配管区画
Ｓ７　関連機器室 1, 1B Ship 2 Hull 2a Stern 2b Stern 3A, 3B Side 4 Ship bottom 5 Propeller 6 Rudder 7 Shore lamp 8 Main engine 10 Deck 11 Dry deck 12, 13, 14, 16, 17 Deck 15 Upper deck (deck)
18 Bottom deck 19A, 19B Partitions 20, 50 Fuel tank 21 Tank body 22 Tank protrusion 22a Cylindrical part 22b Dome part 25, 55 Tank side flange member (flange part)
30, 60 Tank connection box part 31, 61 Bottom plate part 31s, 33s, 61s, 62s, 64s Hull member 32, 63 Side plate part 32p Surrounding wall member 33, 64 Top plate part 34 Insertion hole 35, 65 Tank cover part 35a Upper end flange 40 , 70 Seal member 52 Tank end 62 End plate part S1 Engine room S2 Tank room S3 Cargo room S4 Hierarchy S6 Piping section S7 Related equipment room

Claims (4)

  1. 　船高さ方向に間隔をあけて設けられた複数層の甲板を有する船体と、
    　前記船体内に設けられた主機と、
    　前記船体内に設けられ、前記主機に供給する液化ガス燃料又はガス燃料を貯留する燃料タンクと、
    　少なくとも前記燃料タンクの一部を収容するタンク接続ボックス部と、を備え、
    　前記タンク接続ボックス部の少なくとも一部は、前記船体を構成する船体部材により形成されている
    　船舶。     A hull with multiple layers of decks spaced apart in the height direction of the ship,
    The main engine installed inside the ship and
    A fuel tank provided inside the ship and storing liquefied gas fuel or gas fuel to be supplied to the main engine.
    A tank connection box portion for accommodating at least a part of the fuel tank is provided.
    A ship in which at least a part of the tank connection box portion is formed of hull members constituting the hull.
  2. 　前記燃料タンクは、
    　　タンク本体と、
    　　前記タンク本体の外面から外側に突出するタンク突出部と、を備え、
    　前記タンク接続ボックス部は、
    　　前記タンク突出部が挿通される挿通孔を有した前記船体部材と、
    　　前記船体部材を挟んで前記タンク本体と反対側に配置され、前記挿通孔を通して前記船体部材から前記反対側に突出した前記タンク突出部を囲う囲壁部材と、を備える
    　請求項１に記載の船舶。     The fuel tank
    With the tank body
    A tank protrusion that protrudes outward from the outer surface of the tank body is provided.
    The tank connection box portion
    The hull member having an insertion hole through which the tank protrusion is inserted,
    The ship according to claim 1, further comprising a wall member that is arranged on the side opposite to the tank body with the hull member interposed therebetween and surrounds the tank protrusion that protrudes from the hull member to the opposite side through the insertion hole.
  3. 　前記タンク接続ボックス部を形成する船体部材は、前記甲板を含み、
    　前記タンク本体は、前記甲板の下側の階層に配置され、
    　前記タンク突出部は、前記挿通孔を通して前記挿通孔を有した前記甲板よりも上方に突出している
    　請求項２に記載の船舶。     The hull member forming the tank connection box portion includes the deck.
    The tank body is arranged on the lower level of the deck.
    The ship according to claim 2, wherein the tank protrusion protrudes upward from the deck having the insertion hole through the insertion hole.
  4. 　前記燃料タンクの外面から外側に延びるフランジ部と、
    　前記タンク接続ボックス部の内周面から前記フランジ部に向かって延び、前記フランジ部と間隔をあけて設けられたタンクカバー部と、
    　前記フランジ部と前記タンクカバー部との間を塞ぐように設けられたシール部材と、を備える
    　請求項１から３の何れか一項に記載の船舶。     A flange portion extending outward from the outer surface of the fuel tank and
    A tank cover portion extending from the inner peripheral surface of the tank connection box portion toward the flange portion and provided at a distance from the flange portion, and a tank cover portion.
    The ship according to any one of claims 1 to 3, further comprising a seal member provided so as to close between the flange portion and the tank cover portion.
PCT/JP2020/006152 2019-03-28 2020-02-18 Ship WO2020195340A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202080023636.1A CN113613993A (en) 2019-03-28 2020-02-18 Ship with a detachable cover
KR1020217030320A KR20210129168A (en) 2019-03-28 2020-02-18 Ship

Applications Claiming Priority (2)

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JP2019-062591 2019-03-28
JP2019062591A JP2020158068A (en) 2019-03-28 2019-03-28 Vessel

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WO2020195340A1 true WO2020195340A1 (en) 2020-10-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3122400A1 (en) * 2021-04-30 2022-11-04 Gaztransport Et Technigaz Ro-ro ship comprising a tank for the storage of liquefied gas

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012183864A (en) * 2011-03-03 2012-09-27 Kawasaki Heavy Ind Ltd Structure for tank dome flange section
KR20170138282A (en) * 2016-06-07 2017-12-15 현대중공업 주식회사 Container ship
KR20190011564A (en) * 2017-07-25 2019-02-07 현대중공업 주식회사 Ship

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5658912A (en) 1979-10-19 1981-05-22 Denki Kagaku Kogyo Kk Desulfurizer of molten iron
JPS6138295U (en) * 1984-08-13 1986-03-10 三菱重工業株式会社 Tank mounting structure for cryogenic vessels
JPS6212593U (en) * 1985-07-09 1987-01-26
JP2651769B2 (en) 1992-06-19 1997-09-10 株式会社荏原製作所 Heat recovery combustion equipment
KR20100099907A (en) * 2009-03-04 2010-09-15 삼성중공업 주식회사 Double upper deck for protecting tank dome and ship having the same
KR101918906B1 (en) * 2015-09-28 2018-11-14 바르실라 핀랜드 오이 Fuel tank arrangement of marine vessel

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012183864A (en) * 2011-03-03 2012-09-27 Kawasaki Heavy Ind Ltd Structure for tank dome flange section
KR20170138282A (en) * 2016-06-07 2017-12-15 현대중공업 주식회사 Container ship
KR20190011564A (en) * 2017-07-25 2019-02-07 현대중공업 주식회사 Ship

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3122400A1 (en) * 2021-04-30 2022-11-04 Gaztransport Et Technigaz Ro-ro ship comprising a tank for the storage of liquefied gas

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