JP5931602B2 - Ship - Google Patents

Description

  The present invention relates to ships such as passenger ships, ferries, RO-RO ships (Roll-on / Roll-off Ship), PCC (Pure Car Carrier), PCTC (Pure Car / Truck Carrier), etc. .

  For example, a conventional passenger ship is generally provided with a section having a multi-layer deck in the hull, and a ramp way for connecting the decks of each layer is provided in each section. In this case, a residential section is formed in the upper layer of the hull, a vehicle section is formed in the lower layer, and the car is driven by the driver, enters the deck on the ship from the quay via the shore ramp way, and passes through the ramp way to the lower layer. Move to the deck and park at the designated location.

  In addition, such a passenger ship has a large number of compartments such as an engine room and a shaft compartment in the ship, in addition to the residential compartment and the vehicle compartment. In this case, damage stability requirements are stipulated as international regulations for ships and are reflected in Japanese law. This rule stipulates the requirements for ship side damage, such as ensuring the remaining restoring force after damage and hull inclination angle.

  In addition, there exists what was described in following patent document 1 as such a division structure of the ship. The automobile carrier described in Patent Document 1 is provided with seawater introduction means that can be remotely opened on a watertight deck at the bottom layer that forms a void space on the bottom of a ship. When seawater enters the ship, the seawater that has entered the ship is introduced into the void space by opening the seawater introduction means provided on the bottom watertight deck. By functioning as a tank, the ship's restoring power can be recovered.

JP 2008-201308 A

  The technology of Patent Document 1 can restore the ship's restoring power, but in the unlikely event of damage, the probability of introducing water that has entered the ship into the void space or ballast tank is further increased, and the center of gravity of the hull can be increased in a shorter time. It is hoped that the ship will be lowered to increase the stability of the ship.

  The present invention solves the above-described problems, and an object of the present invention is to provide a ship that lowers the center of gravity of the hull in the event of damage and improves the stability of the ship.

  To achieve the above object, a ship includes a hull including left and right side walls and a bottom, a plinth deck, and a double bottom upper deck that is a double bottom between the plinth deck and the bottom. , At least one void space or ballast tank inside the hull between the ship bottom and the double bottom upper deck, through the double bottom upper deck and at least above the double bottom upper deck. And a seawater introduction port disposed in a space below the plinth deck, a seawater guide pipe that connects the void space or the ballast tank and the space, and an open / close valve that opens and closes the seawater introduction port. It is characterized by providing.

  Even if the side wall is damaged by this structure, seawater flows into the void space or the ballast tank through the seawater guide pipe only by flooding the inundation suppression watertight section. For this reason, the water flowing into the void space or the ballast tank can lower the center of gravity of the hull. As a result, the ship can improve stability.

  As a desirable mode of the present invention, the hull includes a long bulkhead bulkhead along the side wall on the inside of each of the left and right side walls on the bow side, and the seawater guide pipe is one of the side walls on the left and right side. It is preferable to be provided in an inundation-suppressing watertight compartment that is partitioned between the longge bulkhead partition wall and the seawater inlet is in the inundation-suppressing watertight compartment.

  This structure reduces the probability that the area surrounded by the long bulkhead bulkhead, the double bottom upper deck, and the freeboard deck will be submerged, even if the side wall is damaged, while the inundation suppression watertight compartment will submerge. it can. In addition, the infiltration suppression performance can be improved by providing the infiltration suppression watertight compartments on both the left and right sides of the hull.

  As a desirable mode of the present invention, when the on-off valve is remotely operated to open the seawater inlet, it is preferable that water in the space can flow into the void space or the ballast tank through a seawater guide pipe.

  With this structure, it is possible to partition the infiltration-suppressed watertight compartment and the void space or the ballast tank during normal times. Further, when the opening / closing valve is opened, the inundation suppression watertight section and the void space or the ballast tank can be connected and communicated with each other.

  As a desirable mode of the present invention, it is preferable that the on-off valve is a check valve capable of flowing the water in the space into the void space or the ballast tank through the seawater guide pipe by the pressure of water in the space.

  With this structure, it is possible to partition the infiltration-suppressed watertight compartment and the void space or the ballast tank during normal times. Further, when the opening / closing valve is opened, the inundation suppression watertight section and the void space or the ballast tank can be connected and communicated with each other.

  As a desirable mode of the present invention, it is preferable that the seawater guide pipe is provided with a second seawater introduction port above the psoriasis deck through the psoriasis deck.

  With this structure, the seawater guide pipe can cause the water submerged in the upper surface of the dry deck to flow into the void space or the ballast tank, and can suppress the inclination of the hull caused by the inundation. And if it has the closed on-off valve and the on-off valve is in the closed state, the inundation-suppressing watertight compartment and the space above the plinth deck, for example, the vehicle-mounted compartment can be recognized as separate spaces.

  According to the ship of the present invention, the center of gravity of the hull can be lowered in the event of damage and the stability of the ship can be improved.

FIG. 1 is a schematic diagram illustrating a side surface of a ship according to the first embodiment. FIG. 2 is a schematic diagram of the II-II cross section of the ship shown in FIG. FIG. 3 is a schematic diagram of a section taken along the line III-III of the ship shown in FIG. FIG. 4 is an explanatory diagram illustrating a relationship between the inundation suppression watertight section and the seawater guide pipe according to the first embodiment. FIG. 5 is a schematic view showing a perspective view of the port side of the inundation suppression watertight section shown in FIG. 4 as viewed from the center of the hull. FIG. 6 is a schematic diagram showing a perspective view of the port side of the first modification of the seawater guide tube as seen from the center of the hull. FIG. 7 is a schematic view showing a perspective view of the port side of the second modification of the seawater guide pipe as viewed from the center of the hull. FIG. 8 is a schematic view showing a perspective view of the port side of the third modification of the seawater guide tube as seen from the center of the hull. FIG. 9 is an explanatory diagram illustrating a relationship between the inundation-suppressed watertight section and the seawater guide pipe according to the second embodiment. FIG. 10 is a schematic diagram showing a perspective state of the port side of the seawater guide pipe shown in FIG. 9 as seen from the center of the hull. FIG. 11 is an explanatory diagram showing the relationship between the inundation-suppressing watertight section and the void space according to the third embodiment. FIG. 12 is an explanatory diagram illustrating a relationship between the inundation-suppressing watertight section according to the third embodiment and a modification of the void space. FIG. 13 is a schematic diagram illustrating a seawater guide duct according to the fourth embodiment. FIG. 14 is an explanatory view illustrating the arrangement of the seawater guide duct according to the fourth embodiment.

  DESCRIPTION OF EMBODIMENTS Embodiments (embodiments) for carrying out the present invention will be described in detail with reference to the drawings. The present invention is not limited by the contents described in the following embodiments. The constituent elements described below include those that can be easily assumed by those skilled in the art and those that are substantially the same. Furthermore, the constituent elements described below can be appropriately combined.

(Embodiment 1)
FIG. 1 is a schematic diagram illustrating a side surface of a ship according to the first embodiment. FIG. 2 is a schematic diagram of the II-II cross section of the ship shown in FIG. FIG. 3 is a schematic diagram of a section taken along the line III-III of the ship shown in FIG. In FIG. 3, the solid line indicates the structure of the hull 10 viewed from above III-III shown in FIG. 1, and the alternate long and short dash line indicates the structure of the hull 10 viewed from below III-III shown in FIG. 1.

  A ship 1 shown in FIG. 1 is a vehicle carrying ship (car ferry) capable of carrying a vehicle. As shown in FIG. 2, the hull 10 of the ship 1 is surrounded by a ship bottom 10B and left and right side walls (outer plates) 20a and 20b. WL is a full waterline of the hull 10. B is the width of the hull 10 at the full load water line WL. CL is the center of the width in the transverse direction of the hull. The hull 10 includes a propeller 71 that is connected to a main engine that is a main propulsion force source and transmits the propulsion force, and a rudder 72 that controls the direction of the hull 10. The ship 1 can give a propulsive force in an arbitrary direction of the hull 10 by the rotation of the propeller 71 and the steering direction of the rudder 72. The hull 10 may include a bow thruster 73 in order to control the direction of the hull 10 at an early stage.

  The hull 10 is provided with a tiltable bowside rampway 61 for rolling the vehicle on and off at the bowside, and a tiltable stern rampway 62 is provided on the sternside starboard. Yes. The freeboard deck 13 is a boarding deck provided with a stern rampway 62 or a bowside rampway 61. A lower space is formed below the freeboard deck 13, and a main engine room (engine room) 42 in which a propulsion engine is disposed on the stern side of the lower space is provided. The hull 10 is provided with multilayer decks 11, 12, 14, 15, 16, and 17 above and below the plinth deck 13. The deck 11 is a double bottom upper deck that forms a double bottom between the freeboard deck 13 and the ship bottom 10B. Hereinafter, the deck 11 is referred to as a double bottom upper deck 11.

  Between the plinth deck 13 and the deck 14, at least one inboard lamp 64, 65 that can pass a large vehicle is also provided. At least one inboard lamp may be provided between the deck 14 and the deck 15. As shown in FIG. 2, a vehicle mounting section on which large vehicles such as trucks and buses can be mounted is formed on the freeboard deck 13 and deck 14.

  Deck 15, 16, 17 is provided for residential areas, and a plurality of residential areas are formed. In this case, in order to avoid noise from the propulsion engine, the living section is formed on the bow side from directly above the main engine room 42 where the propulsion engine is installed. The stern side of the residential section (on deck 15) is used as a walking space.

  Further, the hull 10 has left and right side walls 20a, 20b and a ship bottom 10B. In the space between the freeboard deck 13 and the ship bottom 10B and in the space behind the position where the deck 12 is disposed, A generator room 41, a main machine room 42, and a shaft room 43, which are a plurality of rooms, are provided. The space surrounded by the double bottom upper deck 11, the ship bottom 10B, and the left and right side walls 20a and 20b can be used as a void space, a fuel tank, a ballast tank or a space. For example, as shown in FIG. 2, the hull 10 includes a void space 81 between the bottom 10 </ b> B and the double bottom upper deck 11. The hull 10 includes ballast tanks 82 on the left and right side walls 20a and 20b side of the void space 81, respectively. Thus, the void space 81 is disposed between the left and right side ballast tanks 82 in the transverse direction (width direction) of the hull perpendicular to the longitudinal direction of the hull 10. The double bottom upper deck 11 may be disposed from the bow to the stern. In this embodiment, the space between the double bottom upper deck 11 and the deck 12 is an empty space, but an inboard ramp is provided between the deck 12 and the double bottom upper deck 11 so that the double bottom upper deck 11 is It may be the lowermost vehicle deck.

  As shown in FIG. 1, an upper and lower space (room) is defined in the hull 10 by providing a deck 12 between a freeboard deck 13 and a ship bottom 10B. Further, as shown in FIG. 3, the hull 10 includes partition walls 25, 24, 23, and 22 that partition the port side side wall 20a and the starboard side wall 20b with a space from the stern toward the bow. Thus, the shaft chamber 43, the main engine chamber 42, and the generator chamber 41 are partitioned. The hull 10 further includes a bow bulkhead 26 on the bow side of the bulkhead 22. The void space 81 described above is disposed between the bow bulkhead 26 and the bulkhead 22. The void space 81 may be disposed between the bow bulkhead 26 and the bulkhead 22 and may be divided in the longitudinal direction of the hull 10. The void space 81 may be disposed between the bow bulkhead 26 and the bulkhead 22 and may be divided symmetrically or asymmetrically in the short direction (width direction) of the hull 10.

  The hull 10 is provided with a left side watertight compartment 31a, 32a in contact with the port side wall 20a and the partition wall 23, and a right side watertight compartment 31b, 32b in contact with the starboard side wall 20b and the partition wall 23. It has been. Further, the hull 10 is provided with a left watertight compartment 33a in contact with the port side side wall 20a and the partition wall 24, and a right watertight compartment 33b in contact with the right side wall 20b and the partition wall 24. .

  Between the deck 12 and the freeboard deck 13, there is provided at least one inboard lamp 63 through which the vehicle can pass. A vehicle mounting section is also formed on the deck 12 below the freeboard deck 13, and longage bulkhead bulkheads 21a and 21b are provided on the bow side of the hull 10 so as to surround the vehicle mounting section on the deck 12. The longj bulkhead bulkheads 21a and 21b are provided inside the hull 10 along the portside side wall 20a and the starboard side wall 20b. The lower vehicle mounting section DL shown in FIG. 3 is a space surrounded by the double bottom upper deck 11, the freeboard deck 13, the long bulkhead bulkheads 21 a and 21 b, the bow bulkhead 26 and the bulkhead 22.

  A plurality of watertight sections 51a, 52a, 53a, 54a, 55a, 56a, 57a, between the port side wall 20a and the longe bulkhead partition wall 21a and between the starboard side wall 20b and the longe bulkhead partition wall 21b, 51b, 52b, 53b, 54b, 55b, 56b, 57b are formed. The plurality of watertight compartments 51a, 52a, 53a, 54a, 55a, 56a, 57a, 51b, 52b, 53b, 54b, 55b, 56b, 57b are void spaces, fuel tanks, ballast tanks, fresh water tanks, equipment rooms, warehouses. Available as a cargo compartment. In the present embodiment, among the plurality of watertight compartments 51a, 52a, 53a, 54a, 55a, 56a, 57a, 51b, 52b, 53b, 54b, 55b, 56b, 57b, the watertight compartments 52a, 53a, 52b, 53b, A seawater guide pipe 83 is provided. The seawater guide pipe 83 may be provided in any one or more of the watertight compartments 51a, 52a, 53a, 54a, 55a, 56a, 57a, 51b, 52b, 53b, 54b, 55b, 56b, 57b. . Hereinafter, in the space above the double bottom upper deck 11 and below the freeboard deck 13, the watertight sections 52a, 53a, 52b, 53b provided with the seawater guide pipe 83 are submerged into the water-suppressing watertight sections 52a, 53a, 52b, 53b.

  FIG. 4 is an explanatory diagram illustrating a relationship between the inundation suppression watertight section and the seawater guide pipe according to the first embodiment. FIG. 4 is a schematic view schematically showing a part of the IV-IV cross section of the ship shown in FIG. FIG. 5 is a schematic view showing a perspective view of the port side of the inundation suppression watertight section shown in FIG. 4 as viewed from the center of the hull. As shown in FIGS. 3 and 4, the water-suppressing watertight compartments 52 b and 53 b are symmetrical to the water-suppressing watertight compartments 52 a and 53 a with respect to the center in the transverse direction (width direction) of the hull perpendicular to the longitudinal direction of the hull 10. Is arranged. The following description will be made using the inundation-suppressing watertight compartments 52a and 53a on the port side shown in FIG. 4, but the infiltration-suppressing watertight compartments 52b and 53b have the same configuration. Is omitted.

  As shown in FIG. 5, the inundation suppression watertight compartments 52a and 53a (52b and 53b) are watertight compartments that divide the hull 10 from the double bottom upper deck 11 to the freeboard deck 13 in the height direction. Since the upper surfaces of the inundation-suppressing watertight compartments 52a and 53a (52b and 53b) are up to the height of the plinth deck 13, when the inundation-suppressing watertight compartments 52a and 53a (52b and 53b) are submerged, the hull 10 is affected by the inundation. The inclination can be suppressed and the stability of the inclination of the hull 10 can be enhanced. The inundation-suppressing watertight compartments 52a and 53a (52b and 53b) may be watertight compartments in which the bottom 10B of the hull 10 to the freeboard deck 13 are partitioned. The inundation suppression watertight sections 52a and 53a (52b and 53b) are adjacent to each other through a partition wall K in the longitudinal direction of the hull 10.

  The longitudinal bulkhead bulkhead 21a (21b) shown in FIG. 4 has a dimension from the left side wall 20a (right side wall 20b) toward the center of the hull 10 in the short direction, which is 1 of the width B of the hull 10 at the full load waterline WL. It is set larger than / 10. For this reason, the long bulkhead bulkhead bulkhead is larger than the expected damage stipulated in SOLAS Chapter II-1 Part B-1 Regulation 8.3.2, which is an international law, and in Article 44 of the Ship Division, which is a Japanese law. The dimension which goes to the center of the hull 10 from the left side wall 20a (right side wall 20b) of 21a (21b) to a transversal direction can be enlarged. For example, even if the left side wall 20a (the right side wall 20b) is damaged, the longj bulkhead partition wall 21a (21b) is not easily damaged, and there is a possibility that only the damage to the inundation-suppressing watertight sections 52a, 53a (52b, 53b) may be stopped. Get higher. When the port side wall 20a located near the inundation-suppressing watertight compartments 52a and 53a is damaged from the outside of the hull 10, the inundation-suppressing watertight compartments 52a and 53a are submerged, but the long bulkhead partition walls 21a and 21b. And the probability that the area | region enclosed by the double bottom upper deck 11 and the freezer deck 13 will be flooded can be lowered | hung.

  As shown in FIG.4 and FIG.5, the inundation suppression watertight division 52a, 53a (52b, 53b) is provided with the seawater guide pipe 83 inside. The seawater guide pipe 83 penetrates the ballast tank 82 and the double bottom upper deck 11 from the void space 81, and connects the void space 81 with the space below the psoriasis deck 13 and above the double bottom upper deck 11. . The seawater guide pipe 83 connects the space surrounded by the ship bottom 10B, the double bottom upper deck 11 and the left and right side walls 20a, 20b, and the space below the freeboard deck 13 and above the double bottom upper deck 11. It is a pipe member. The seawater guide pipe 83 includes a seawater inlet 83 </ b> A at least in a space below the dry deck 13 and above the double bottom upper deck 11. The seawater introduction port 83A is provided closer to the upper surface of the double bottom upper deck 11 than the lower surface of the freeboard deck 13, so that the water in the inundation-suppressing watertight sections 52a, 53a, 52b, 53b flows into the void space 81. Probability can be increased.

  The seawater introduction port 83A is a hole that opens to the branch pipe 83a of the seawater guide pipe 83 that is inside the inundation suppression watertight compartments 52a, 53a, 52b, 53b. The seawater guide pipe 83 communicates the void space 81 with each of the inundation suppression watertight sections 52a, 53a, 52b, and 53b. The seawater guide pipe 83 includes an open / close valve 84 that closes the seawater inlet 83A of the branch pipe 83a inside the inundation suppression watertight compartments 52a, 53a, 52b, and 53b. Normally, the open / close valve 84 is closed. Yes. For example, the control device 2 is mounted on the hull 10, and the control device 2 can open and close the opening / closing valve 84 by remote operation. When the open / close valve 84 is remotely operated so as to open the seawater inlet 83 </ b> A, the water in the inundation suppression watertight sections 52 a, 53 a, 52 b, and 53 b can flow into the void space 81 through the seawater guide pipe 83.

  When the portside side wall 20a located near the inundation-suppressing watertight compartments 52a, 53a is damaged from the outside of the hull 10, the inundation-suppressing watertight compartments 52a, 53a are submerged, but the long bulkhead partition walls 21a, 21b, The probability that the area surrounded by the double bottom upper deck 11 and the dry plinth deck 13 will be submerged can be reduced. In addition, the control device 2 shown in FIG. 4 opens the opening / closing valve 84 by remote control, so that the water submerged in the inundation suppression watertight compartments 52a and 53a (52b and 53b) It can be put into the space 81 and the center of gravity of the hull 10 can be lowered in a short time to improve the stability of the ship. Moreover, the ship 1 can suppress the inclination of the hull 10 by the influence of flooding.

  The on-off valve 84 may be a check valve. In this case, the check valve is opened by the pressure of the water submerged in the water-suppressing watertight compartments 52a, 53a (52b, 53b), and the water submerged in the water-suppressed watertight compartments 52a, 53a (52b, 53b) It is possible to flow into the void space 81 below the deck 11 to lower the center of gravity of the hull 10 in a short time, and to suppress the inclination of the hull 10 due to the influence of flooding that improves the stability of the ship.

  The open / close valve 84 of the seawater guide pipe 83 is set to be larger than 1/20 of the width B of the hull 10 at 760 mm from the ship bottom 10B or at the full load water line WL. For this reason, the seawater guide pipes are larger than the expected damages stipulated in SOLAS Chapter II-1 Part B-1 Regulation 9.2, which is an international law, and Articles 44 and 65, which are Japanese law. The position of the 83 open / close valve 84 from the ship bottom 10B can be increased. For this reason, even when the ship bottom 10B is damaged, the possibility of damage to the on-off valve 84 is suppressed.

  The seawater guide pipe 83 has a seawater introduction port 83B, which is a second seawater introduction port at the upper end, disposed above the upper surface of the plinth deck 13, and any of the inundation suppression watertight sections 52a, 53a, 52b, and 53b. It is preferable that the space above the freeboard deck 13 and the void space 81 communicate with each other. As a result, the seawater guide pipe 83 can cause the water that has been damaged by the port-side side wall 20a (starboard-side side wall 20b) and flooded into the upper surface of the plinth deck 13 to flow into the void space 81. The stability of the hull 10 can be improved.

  Further, the seawater guide pipe 83 is a longitudinal communication that connects the internal flow paths of the respective seawater guide pipes 83 provided in the inundation suppression watertight sections 52a and 53a (52b and 53b) adjacent to the longitudinal direction of the hull 10. A tube 85 is provided. For this reason, when the water immersed in the upper surface of the plinth deck 13 is caused to flow into the void space 81, for example, even if one seawater guide pipe 83 reaches the upper limit of the flow rate that the internal flow path can flow, one seawater guide pipe 83 The water submerged through the vertical communication pipe 85 can be bypassed, and the water bypassed by the other seawater guide pipe 83 can flow into the void space 81. For this reason, even if the diameter of the seawater guide pipe 83 is not increased, the water immersed in the upper surface of the freeboard deck 13 by the plurality of seawater guide pipes 83 can be caused to flow into the void space 81.

  Thus, in the ship 1 of the first embodiment, the hull 10 has a double bottom between the left and right side walls 20a and 20b and the bottom 10B, the plinth deck 13, the plinth deck 13 and the bottom 10B. And a double bottom upper deck 11. At least one of the void space 81 or the ballast tank 82 is provided inside the hull 10 and between the ship bottom 10B and the double bottom upper deck 11. The seawater guide pipe 83 includes a seawater introduction port 83A that penetrates the double bottom upper deck 11 and is disposed in a space at least above the double bottom upper deck 11 and below the freeboard deck 13, and includes a void space 81 or a ballast. The tank 82 is connected to the space above the double bottom upper deck 11 and below the freeboard deck 13. An open / close valve 84 for opening and closing the seawater inlet 83A of the seawater guide pipe 83 is provided.

  In the technique of Patent Document 1 described above, the air vent pipe is damaged, so that it is possible to suppress the inclination of the hull due to the influence of flooding that improves the stability of the ship. On the other hand, the ship 1 according to the first embodiment has water that has been submerged in the inundation-suppressing watertight sections 52a, 53a, 52b, and 53b even if the seawater guide pipe 83 is not damaged along with the damage of the side wall 20a or the side wall 20b. In the void space 81 below the double bottom upper deck 11, the center of gravity of the hull 10 is lowered in a short time, and the inclination of the hull 10 due to the influence of flooding that improves the stability of the ship can be suppressed. For this reason, the center of gravity of the hull can be lowered in a shorter time than the technique of Patent Document 1, and the stability of the ship can be improved. Further, the seawater guide pipe 83 can cause the water that has been damaged by the port side wall 20a or the starboard side wall 20b to enter the void space 81 and flow into the void space 81. Can improve the stability.

  Further, in the ship 1 according to the first embodiment, the left water-suppressing watertight compartments 52a and 53a in contact with the port-side side wall 20a and the partition wall 23, and the right water-inhibition watertight compartment 52b in contact with the right side wall 20b and the partition wall 23, 53b. Thereby, the infiltration suppression watertight compartments 52a, 53a, 52b, and 53b are respectively provided on the left and right sides of the hull 10, and the infiltration suppression performance can be improved.

  In the ship 1 according to the first embodiment, the hull 10 includes longi bulkhead bulkheads 21a and 21b on the inner sides of the left and right side walls 20a and 20b on the bow side. It is provided in the inundation-suppressing watertight compartments 52a, 53a, 52b, 53b, which are defined between the side walls 20a, 20b and the long bulkhead partition walls 21a, 21b. The inside of the long bulkhead partition walls 21a and 21b can sufficiently secure the water immersion suppression performance.

  In the marine vessel 1 according to the first embodiment, the seawater guide tube 83 penetrates the freeboard deck 13 and includes a seawater inlet 83 </ b> B above the freeboard deck 13. For this reason, at the time of damage, the seawater guide pipe 83 causes the water that has been damaged by the port side wall 20a or the starboard side wall 20b to be submerged in the upper surface of the dry deck 13 to the void space 81 via the seawater inlet 83B. It can be made to flow in, and the inclination of the hull 10 by the influence of flooding can be suppressed. In addition, when the on-off valve 84 is closed except when damaged, and the on-off valve 84 is in a closed state, the space above the inundation suppression watertight compartments 52a, 53a, 52b, 53b and the freeboard deck 13 is provided. For example, it can be recognized as a separate space from the vehicle mounting section.

<First Modification of Embodiment 1>
FIG. 6 is a schematic diagram showing a perspective view of the port side of the first modification of the seawater guide tube as seen from the center of the hull. The same components as those in the first embodiment described above are denoted by the same reference numerals, and redundant description is omitted. As shown in FIG. 6, the seawater guide pipe 83 is provided in the inundation suppression watertight section 53a (53b). The seawater guide pipe 83 may be provided in the infiltration suppression watertight section 52a (52b) instead of the infiltration suppression watertight section 53a (53b). Thus, the seawater guide pipe 83 is in any one of the plurality of watertight compartments 51a, 52a, 53a, 54a, 55a, 56a, 57a, 51b, 52b, 53b, 54b, 55b, 56b, 57b. The seawater guide pipe 83 may be provided.

  The hull 10 is preferably provided with a water-inhibiting watertight section including a seawater guide pipe 83 symmetrically on the left and right sides of the hull 10. The infiltration suppression performance can be improved by providing the infiltration suppression watertight sections 53a and 53b including the seawater guide pipe 83 symmetrically on the left and right sides of the hull 10, respectively.

  As shown in FIG. 6, the inundation suppression watertight section 53 a (53 b) includes a seawater guide pipe 83 inside, and once the seawater guide pipe 83 appears in the lower vehicle mounting section DL, it is inserted into the void space 81. Yes. For this reason, in the seawater guide pipe 83, each of the void space 81, the lower vehicle mounting section DL, and the inundation suppression watertight section 53a (53b) communicates. The seawater guide pipe 83 includes an open / close valve 84A for closing the seawater inlet 83A of the branch pipe 83a inside the inundation suppression watertight section 53a (53b), and a seawater outlet 83C of the branch pipe 83b inside the lower vehicle mounting section DL. The opening / closing valve 84B for closing is provided, and the opening / closing valves 84A, 84B are normally closed. The open / close valve 84B is disposed near the surface of the double bottom upper deck 11. For example, the control device 2 described above is mounted on the hull 10, and the control device 2 can open and close the open / close valves 84A and 84B by remote control. When the on-off valve 84A is remotely operated so as to open the seawater inlet 83A, the water in the inundation suppression watertight sections 52a, 53a, 52b, 53b can flow into the void space 81 through the seawater guide pipe 83. When the on-off valve 84B is remotely operated to open the seawater inlet 83C, the water in the lower vehicle mounting section DL can flow into the void space 81 through the seawater guide pipe 83.

  When the port side wall 20a located near the inundation-suppressing watertight compartment 53a is damaged from the outside of the hull 10, the inundation-suppressing watertight compartment 53a is submerged, but the longage bulkhead bulkheads 21a and 21b and the double bottom The probability that the area surrounded by the deck 11 and the freeboard deck 13 is submerged can be lowered. In addition, the control device 2 shown in FIG. 4 opens the on-off valve 84 </ b> A by remote control, so that the water submerged in the submersion suppression watertight section 53 a (53 b) is put into the void space 81 below the double bottom upper deck 11. Thus, the center of gravity of the hull 10 can be lowered in a short time, and the stability of the ship can be improved. Further, when the lower vehicle mounting section DL is flooded, the control device 2 opens the opening / closing valve 84B by remote control, so that the water submerged in the lower vehicle mounting section DL becomes a void below the double bottom upper deck 11. It can be put into the space 81 and the center of gravity of the hull 10 can be lowered in a short time to improve the stability of the ship.

  Further, the seawater guide pipe 83 has a seawater inlet 83B at the upper end disposed above the upper surface of the freeboard deck 13 and penetrates one of the inundation suppression watertight compartments 53a (53b). It is preferable that the space and the void space 81 communicate with each other. As a result, the seawater guide pipe 83 can flow the water that has been damaged by the port side wall 20a (starboard side wall 20b) and has been submerged into the upper surface of the plinth deck 13 into the void space 81, and in a short time. The center of gravity of 10 can be lowered and the stability of the ship can be improved.

<Second Modification of Embodiment 1>
FIG. 7 is a schematic view showing a perspective view of the port side of the second modification of the seawater guide pipe as viewed from the center of the hull. The same components as those in the first embodiment and the first modification described above are denoted by the same reference numerals, and redundant description is omitted. As shown in FIG. 7, the seawater guide pipe 83 is provided in the inundation suppression watertight section 53a (53b).

  The hull 10 is preferably provided with a water-inhibiting watertight section including a seawater guide pipe 83 symmetrically on the left and right sides of the hull 10. The infiltration suppression performance can be improved by providing the infiltration suppression watertight sections 53a and 53b including the seawater guide pipe 83 symmetrically on the left and right sides of the hull 10, respectively.

  As shown in FIG. 7, the inundation suppression watertight section 53a (53b) includes a seawater guide pipe 83 therein, and the ballast tank 82 and the infiltration suppression watertight section 53a (53b) communicate with each other. The seawater guide pipe 83 closes the open / close valve 84A for closing the seawater inlet 83A of the branch pipe 83a inside the inundation suppression watertight section 53a (53b) and the seawater outlet 83C of the branch pipe 83b inside the ballast tank 82. An open / close valve 84B is provided, and the open / close valves 84A and 84B are normally closed. For example, the control device 2 described above is mounted on the hull 10, and the control device 2 can open and close the open / close valves 84A and 84B by remote control. When remotely operated to open the seawater inlet 83 </ b> A, the water in the inundation-suppressed watertight sections 52 a, 53 a, 52 b, and 53 b can flow into the void space 81 through the seawater guide pipe 83. Further, when remotely operated to open the seawater inlets 83 </ b> A and 83 </ b> C, the water in the inundation suppression watertight sections 52 a, 53 a, 52 b and 53 b can flow into the ballast tank 82 and the void space 81 through the seawater guide pipe 83.

  When the port side wall 20a located near the inundation-suppressing watertight compartment 53a is damaged from the outside of the hull 10, the inundation-suppressing watertight compartment 53a is submerged, but the longage bulkhead bulkheads 21a and 21b and the double bottom The probability that the area surrounded by the deck 11 and the freeboard deck 13 is submerged can be lowered. In addition, the control device 2 shown in FIG. 4 opens the opening / closing valves 84A and 84B by remote control, so that the water immersed in the inundation suppression watertight section 53a (53b) is a void space below the double bottom upper deck 11. By putting it in at least one of 81 and the ballast tank 82, the center of gravity of the hull 10 can be lowered in a short time, and the stability of the ship can be improved.

  Further, the seawater guide pipe 83 has a seawater inlet 83B at the upper end disposed above the upper surface of the freeboard deck 13 and penetrates one of the inundation suppression watertight compartments 53a (53b). It is preferable that the space and the ballast tank 82 communicate with each other. As a result, the seawater guide pipe 83 flows into at least one of the void space 81 and the ballast tank 82 of water that has been damaged by the port side wall 20a (starboard side wall 20b) and has been immersed in the upper surface of the plinth deck 13. The center of gravity of the hull 10 can be lowered in a short time, and the stability of the ship can be improved.

<Third Modification of Embodiment 1>
FIG. 8 is a schematic view showing a perspective view of the port side of the third modification of the seawater guide tube as seen from the center of the hull. The same components as those in the first embodiment described above are denoted by the same reference numerals, and redundant description is omitted. In the third modification, the above-described opening / closing valve 84 is provided to open and close the flow path inside the vertical communication pipe 85. Since the open / close valve 84 that opens and closes the flow path inside the vertical communication pipe 85 is provided, the open / close valve 84 is opened by remote control so that the plurality of seawater guide pipes 83 can dry the open / close valve 84 as described in the first embodiment. Water immersed in the upper surface of the upper deck 13 can flow into the void space 81. Further, by closing the on-off valve 84 by remote control, it is possible to determine the submerged section of the submersion-suppressed watertight sections 52a, 53a (52b, 53b) and adjust the balance of the hull 10.

(Embodiment 2)
FIG. 9 is an explanatory diagram illustrating a relationship between the inundation-suppressed watertight section and the seawater guide pipe according to the second embodiment. FIG. 10 is a schematic diagram showing a perspective state of the port side of the seawater guide pipe shown in FIG. 9 as seen from the center of the hull. In addition, the same code | symbol is attached | subjected to the member which has the same function as embodiment mentioned above, and detailed description is abbreviate | omitted.

  As shown in FIGS. 9 and 10, the inundation suppression watertight sections 52 a and 53 a (52 b and 53 b) are provided with a seawater guide pipe 86 inside, and the seawater guide pipe 86 is submerged above the double bottom upper deck 11. A seawater inlet 83A is provided inside the restrained watertight compartments 52a, 53a (52b, 53b), is disposed so as to penetrate the ballast tank 82 from the void space 81, and penetrates the double bottom upper deck 11 to form a void space. 81 and the space above the double bottom upper deck 11 are connected. The seawater guide pipe 86 includes a seawater inlet 83A inside the inundation suppression watertight sections 52a, 53a (52b, 53b). The seawater guide pipe 86 allows the void space 81 and the infiltration suppression watertight sections 52a, 53a, Each of 52b and 53b is connected. The seawater guide pipe 86 includes an opening / closing valve 84 that closes the seawater inlet 83A inside the inundation suppression watertight compartments 52a, 53a (52b, 53b), and the opening / closing valve 84 is normally closed. For example, the control device 2 is mounted on the hull 10, and the control device 2 can open and close the opening / closing valve 84 by remote operation.

  The open / close valve 84 of the seawater guide pipe 86 is set to 760 mm from the ship bottom 10B or higher than 1/20 of the width B of the hull 10 at the full load water line WL. For this reason, the opening / closing valve of the seawater guide pipe 86 is larger than the expected damage stipulated in SOLAS Chapter II-1 Part B-1 Regulation 9.2, which is an international law, and Article 44 of the ship division regulations, which is a Japanese domestic law. The position of 84 from the ship bottom 10B can be increased. For this reason, even if the ship bottom 10B is damaged, the possibility of damage to the check valve 83 is suppressed.

  When the portside side wall 20a located near the inundation-suppressing watertight compartments 52a, 53a is damaged from the outside of the hull 10, the inundation-suppressing watertight compartments 52a, 53a are submerged, but the long bulkhead partition walls 21a, 21b, The probability that the area surrounded by the double bottom upper deck 11 and the dry plinth deck 13 will be submerged can be reduced. In addition, the control device 2 shown in FIG. 4 opens the opening / closing valve 84 by remote control, so that the water submerged in the inundation suppression watertight compartments 52a and 53a (52b and 53b) By entering the space 81, the center of gravity of the hull 10 can be lowered in a short time to improve the stability of the ship, and the inclination of the hull 10 due to the influence of flooding can be suppressed.

  In addition, as with the longitudinal communication pipe 85 of the first embodiment described above, the seawater guide pipe 86 is provided in each of the inundation suppression watertight sections 52a and 53a (52b and 53b) adjacent to the front and rear in the longitudinal direction of the hull 10. A vertical communication pipe that connects the internal flow paths of the seawater guide pipe 86 may be provided.

(Embodiment 3)
FIG. 11 is an explanatory diagram showing the relationship between the inundation-suppressing watertight section and the void space according to the third embodiment. In addition, the same code | symbol is attached | subjected to the member which has the same function as embodiment mentioned above, and detailed description is abbreviate | omitted.

  As shown in FIG. 11, the void space 81 is provided with a partition wall K1 that divides the void space 81 in the longitudinal direction of the hull 10 and can be remotely operated by the control device 2 described above. A watertight sliding door 87 is provided. Since the watertight sliding door 87 is normally closed, even if the flooded water is put into the lower void space 81 via the seawater guide pipe 83 and the center of gravity of the hull 10 is lowered in a short time, the void space There may be a limit to the allowable amount that can flow into 81. In this case, the watertight sliding door 87 that can be remotely operated by the control device 2 is opened, the capacity of the void space 81 is increased, the center of gravity of the hull 10 is lowered, and the stability of the ship can be improved. Further, the control device 2 can control the amount of water intruding into the void space 81 in a stepwise manner.

  FIG. 12 is an explanatory diagram illustrating a relationship between the inundation-suppressing watertight section according to the third embodiment and a modification of the void space. As a modified example of the void space 81, a void space communication pipe 88 that penetrates the partition wall K1 is provided in the partition wall K1. The void space communication pipe 88 is provided with an opening / closing valve 89 that can open and close the opening of the void space communication pipe 88 by remote control with the control device 2 described above. Since the on-off valve 89 is normally closed, even if the flooded water is put into the lower void space 81 via the seawater guide pipe 83 and the center of gravity of the hull 10 is lowered in a short time, the void space 81 There may be a limit on the amount of water that can flow into the tank. In this case, the control device 2 can open the on-off valve 89 that can be remotely operated to increase the capacity of the void space 81, lower the center of gravity of the hull 10, and improve the stability of the ship.

  In addition, a watertight sliding door is provided on the longage bulkhead partition wall 21a (21b) side of the inundation-suppressing watertight compartments 52a and 53a (52b and 53b) of the first to third embodiments described above, and the watertight door is opened and closed. The ingress and egress of the infiltration-suppressed watertight compartments 52a and 53a (52b and 53b) may be enabled. For this reason, the inundation suppression watertight compartments 52a and 53a (52b and 53b) are utilized as warehouses, equipment rooms for storing roll suppression (fin stabilizer) equipment, air conditioning, waste disposal equipment, etc., and machine rooms for storing machine tools. can do.

(Embodiment 4)
FIG. 13 is a schematic diagram illustrating a seawater guide duct according to the fourth embodiment. FIG. 14 is an explanatory view illustrating the arrangement of the seawater guide duct according to the fourth embodiment. FIG. 14 is also a schematic diagram schematically showing a part of the IV-IV cross section of the ship shown in FIG. Members having the same functions as those of the above-described embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIGS. 13 and 14, a seawater guide duct 90 is provided in the height direction of the hull 10 on the center CL side of the width of the long bulkhead bulkhead 21 a (21 b) in the width direction of the hull. The seawater guide duct 90 is at a lower position in the height direction than the hollow columnar duct main body 91 whose one end opens above the dry deck 13, the ventilation opening 92, and the ventilation opening 92. In addition, a seawater introduction opening 93 located above the double bottom upper deck 11, a watertight sliding door 95 that can be remotely operated by the control device 2, and a ventilation fan F are provided. The watertight sliding door 95 is normally closed. In the seawater guide duct 90, the duct body 91 penetrates the double bottom upper deck 11. The watertight sliding door 95 may be a watertight hatch or a valve that can be remotely opened and closed by the control device 2.

  The watertight sliding door 95 is set to be 760 mm from the ship bottom 10B or higher than 1/20 of the width B of the hull 10 at the full load water line WL. For this reason, the bottom 10B of the watertight sliding door 95 is larger than the expected damage stipulated in SOLAS Chapter II-1 Part B-1 Regulation 9.2, which is an international law, and Article 44 of the ship division regulations, which is a Japanese domestic law. The position from can be raised. For this reason, even if the ship bottom 10B is damaged, the possibility of damage to the watertight sliding door 95 is suppressed.

  As shown in FIG. 14, the seawater guide duct 90 may include a plurality of openings 92 and seawater introduction openings 93 in the duct body 91. A plurality of seawater guide ducts 90 may be provided in the longitudinal direction of the hull 10 along the long bulkhead bulkhead 21a (21b). Further, as shown in FIG. 14, the seawater guide duct 90 is provided on each of the inner side of the longe bulkhead bulkhead 21 a and the inner side of the longge bulkhead bulkhead 21 b, and is provided so as to face the short direction of the hull 10. It has been.

  Usually, the seawater guide duct 90 acts as a ventilation duct, and the air AIR is discharged from the ventilation opening 92 to the upper side of the freeboard deck 13 through the duct body 91 by the ventilation fan F. The seawater guide duct 90 may act as a ventilation duct, or the air AIR may be discharged from the seawater introduction opening 93 to the upper side of the freeboard deck 13 via the duct body 91 by the ventilation fan F. Thereby, the space of the lower vehicle mounting section DL is ventilated.

  In the ship 1 of the fourth embodiment, the hull 10 has a double bottom between the left and right side walls 20a and 20b and the bottom 10B, the freeboard deck 13, and the freeboard deck 13 and the bottom 10B. A heavy bottom upper deck 11 and a seawater guide duct 90 are included. The void space 81 is provided inside the hull 10 and between the ship bottom 10B and the double bottom upper deck 11. The seawater guide duct 90 penetrates the double bottom upper deck 11 and is disposed in a space at least above the double bottom upper deck 11 and below the freeboard deck 13 and a seawater introduction opening 93 and a double bottom 10B. At least one of a watertight sliding door 95, a watertight hatch, and a valve provided between the bottom upper deck 11 is provided. When at least one of the watertight sliding door 95, the watertight hatch, and the valve is opened, the seawater guide duct 90 connects the void space 81 and the space above the double bottom upper deck 11 and below the freeboard deck 13. be able to.

  When there is water in the lower vehicle mounting section DL, the control device 2 opens the watertight sliding door 95 by remote control, for example, so that the water w submerged in the lower vehicle mounting section DL is converted into the seawater introduction opening 93 and the duct body. Through 91, it can be put into the void space 81 below the double bottom upper deck 11, and the center of gravity of the hull 10 can be lowered in a short time to improve the stability of the ship.

DESCRIPTION OF SYMBOLS 1 Ship 2 Control apparatus 10 Hull 10B Ship bottom 11 Double-bottom upper deck 13 Psoriasis deck 12, 14, 15, 16, 17 Deck 20a Port side wall (side wall)
20b Starboard side wall (side wall)
21a, 21b Long bulkhead bulkhead 22, 23, 24, 25 Bulkhead 31a, 31b, 32a, 32b, 33a, 33b Watertight compartment 81 Void space 82 Ballast tank 83, 86 Seawater guide pipe 83a Branch pipe 84, 84A, 84B 89 Open / close valve 85 Vertical communication pipe 87 Watertight sliding door 88 Void space communication pipe 90 Seawater guide duct K, K1 Bulkhead WL Full load water line

Claims (11)

A hull including left and right side walls and a ship bottom, a plinth deck, and a double bottom upper deck that forms a double bottom between the plinth deck and the ship bottom;
At least one void space or ballast tank inside the hull between the ship bottom and the double bottom upper deck;
A seawater introduction port that penetrates the double bottom upper deck and is disposed in a space at least above the double bottom upper deck and below the psoriasis deck, and includes the void space or the ballast tank and the space. A seawater guide pipe to be connected;
An open / close valve for opening and closing the seawater inlet;
Equipped with a,
The hull is provided with a long bulkhead bulkhead along the side wall on the inside of each of the side walls on the left and right sides on the bow side,
The seawater guide pipe is provided in an inundation-suppressing watertight compartment defined between the side wall on either side of the left and right side and the longi bulkhead partition, and the seawater inlet is in the inundation-suppressing watertight compartment. Ship. In the case where the seawater inlet is the first seawater inlet, the seawater guide pipe penetrates the pseuzer deck and is provided with a second seawater inlet above the psyllium deck. The ship according to claim 1 .   A hull including left and right side walls and a ship bottom, a plinth deck, and a double bottom upper deck that forms a double bottom between the plinth deck and the ship bottom;
  At least one void space or ballast tank inside the hull between the ship bottom and the double bottom upper deck;
  A seawater introduction port that penetrates the double bottom upper deck and is disposed in a space at least above the double bottom upper deck and below the psoriasis deck, and includes the void space or the ballast tank and the space. A seawater guide pipe to be connected;
  An open / close valve for opening and closing the seawater inlet;
  With
  In the case where the seawater inlet is the first seawater inlet, the seawater guide pipe penetrates the pseuzer deck and is provided with a second seawater inlet above the psyllium deck. To ship. The said seawater guide pipe is provided with two or more, Each said seawater guide pipe is provided with the said 1st seawater inlet and the said 2nd seawater inlet, The Claim 2 or Claim 3 characterized by the above-mentioned. Ship. The marine vessel according to claim 2 or 3 , wherein a plurality of the seawater guide tubes are provided, and internal flow paths of the seawater guide tubes are connected to each other. The ship according to any one of claims 1 to 5 , wherein the seawater guide pipe is a seawater guide duct that can act as a duct for ventilation.   A hull including left and right side walls and a ship bottom, a plinth deck, and a double bottom upper deck that forms a double bottom between the plinth deck and the ship bottom;
  At least one void space or ballast tank inside the hull between the ship bottom and the double bottom upper deck;
  A seawater introduction port that penetrates the double bottom upper deck and is disposed in a space at least above the double bottom upper deck and below the psoriasis deck, and includes the void space or the ballast tank and the space. A seawater guide pipe to be connected;
  An open / close valve for opening and closing the seawater inlet;
  With
  The seawater guide pipe is a seawater guide duct that can act as a duct for ventilation.   The ship according to any one of claims 1 to 7, further comprising a control device capable of remotely opening and closing the opening / closing valve.   The third seawater introduction port is provided in a partition partitioning the void space or the ballast tank, and has a third seawater introduction port communicating with the void space or the ballast tank partitioned by the partition. The ship according to any one of 8. The on-off valve, the case of a remotely operated to open the seawater inlet, through sea water guide pipe, claim the water in the space the preceding claims, characterized in that can flow into the void space or the ballast tank 9 The ship according to any one of the above. The on-off valve according to claim claim 1, wherein the the pressure of the water in said space through said seawater guide tube, a check valve which can flow the water in the space to the void space or the ballast tank The ship according to any one of 9 .

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