JP5819755B2 - Ship - Google Patents

Description

  The present invention relates to a ship in which an emergency fire pump is disposed outside the ship side of a safer engine room.

  In a conventional ship, in order to extinguish a cargo hold etc. other than the engine room, the fire is extinguished with a fire extinguishing pump provided in the engine room, etc., and the fire inside the engine room is arranged outside the engine room. The fire is extinguished with an emergency fire pump.

  This is an “emergency use” as defined in “Marine Life Safety Convention (SOLAS) Chapter-1. Rule 10 1.1.3.2.1 Location of Section” to ensure the safety of ships. This is because the area with the fire pump must not be adjacent to the boundary of the Class A engine room or the area with the fire pump.

  In order to comply with this rule, in the prior art, as shown in FIGS. 8 and 9, an emergency fire pump 22 is disposed in an emergency fire pump chamber 21 disposed behind the rear partition wall 10 a of the engine room 10. ing. However, with the progress of research on the shape of the hull form, considering the relationship with the ship speed, which is the most important item in performance, the width of the stern portion 1a below the full-length draft line Wf becomes narrower, and the upper part thereof tends to become narrower. is there.

  Therefore, as shown in FIG. 9, if the emergency fire pump 22 is arranged in the aft peak tank 13 below the steering machine room 12 in the stern portion 1a where the ship width is relatively wide, the emergency fire pump 22 21d is disposed above the full load water line Wf, the floor surface 21d tends to be too far from the full load water line Wf, the actual lifting height Sh1 becomes large, and the necessary suction head (suction head) becomes insufficient. The problem that it is easy to fall and the portion where the seawater intake port (sea chest) 24 to which the suction pipe 23 for seawater suction of the emergency fire pump 22 is connected are limited to the upper side of the propeller shaft center Pc. There is a problem.

  Moreover, in recent years, new rules related to the specifications and design conditions of emergency fire pumps have come into effect, and the design conditions of emergency fire pumps have become stricter than before. Guidelines for the Maritime Safety Committee (MSC) of the International Maritime Organization (IMO) scheduled to take effect in May 2012. 1 / Circ. When the design conditions of the emergency fire pump 1388 are applied, the height of the water line used when planning the installation location of the emergency fire pump is lower than the waterline in the minimum voyage state, which was the conventional plan condition. Therefore, the problem that the required suction lift of the emergency fire pump is insufficient and the problem that the seawater intake does not submerge are becoming more serious.

  In addition, MSC. 1 / Circ. 1271 (requirement for approval of high-expansion foam fire extinguishing system) and IACS UI SC163 (requirement for water jets on the deck of the fire hydrant on the deck) of the unified interpretation of the International Classification Societies (IACS) require an increase in the capacity of the emergency fire pump. As a result, the pressure loss in the suction pipe increases, and it becomes more difficult to obtain the necessary suction lift.

  That is, Circ. It is difficult to ensure a sufficient depth for the water line required by 1388. In some cases, as shown in FIGS. There arises a problem that the seawater intake port 24 cannot be disposed at a position where the seawater intake port 24 is submerged at a position higher than the water line required by 1388. Moreover, even if the seawater intake 24 can be submerged, Circ. Serious problem that the actual lift of the emergency fire pump 22 with respect to the water line required by 1388 becomes large, and as a result, the necessary suction lift cannot be obtained, and it becomes difficult to fully exhibit the function of the emergency fire pump 22 Will occur.

  If the emergency fire pump chamber 21 is provided in the stern portion 1a while solving these problems, the diagram of the stern portion needs to be widened and the stern portion 1a must be extended in the longitudinal direction. At the same time, there is a problem that the captain becomes long.

  In order to solve these problems, a ship is proposed in which an emergency fire pump for extinguishing the engine room is disposed in the compartment with a fire prevention structure that satisfies a predetermined requirement in the engine room of the ship. (For example, refer to Patent Document 1).

  However, when an emergency fire pump is provided in the engine room having a relatively wide ship width as described above, it is necessary to provide not only the emergency fire pump room compartment but also a safety compartment around the engine room. It is necessary to expand the engine room in which various devices are arranged and become narrow, and in this case as well, there is a problem that the engine room becomes longer and the captain becomes longer.

  On the other hand, in the engine room, when a fire occurs in the engine room, it is necessary for sailors to evacuate to a safe area, and the engine room is provided with an evacuation passage (escape route). This evacuation passage is usually placed in the engine room. However, it is necessary to ensure sufficient safety against fire in the engine room, and a fire prevention structure is required. There is a problem of securing space in the room.

JP 2008-149798 A

  The present invention has been made in view of the above-described situation, and the purpose of the present invention is to make an emergency fire pump without increasing the stern part or the engine room and without being affected by the stern-shaped spine. A seawater intake for this emergency fire pump can be installed in Circ. It can be placed well below the water line required by 1388, can secure a sufficient necessary suction head, can reliably supply seawater to the engine room in an emergency, and can easily escape from the engine room It is to provide a ship that can be secured.

In order to achieve the above object, the ship of the present invention includes a front-end transverse bulkhead of the engine room to a rear-end transverse bulkhead of the engine room in the longitudinal direction of the hull , and a vertical direction of the engine room in the width direction of the hull. An installation section for installing an emergency fire pump is provided in a region outside the engine room from the partition wall to the ship side skin.

  According to this configuration, the installation section in which the emergency fire pump can be arranged is provided on the bow side from the rear end bulkhead of the engine room and on the ship side from the engine room. Compared with the case where it arranges, since the space which is wide can be secured for the installation section, the necessary suction lift of the emergency fire pump can be easily obtained by lowering the pump installation position and reducing the actual lift.

  Compared to the configuration of the emergency fire pump located behind the stern bulkhead of the engine room of the prior art, this structure can secure a certain amount of space necessary for the arrangement of the emergency fire pump, and it can be arranged comfortably. It becomes possible. In addition, the position of the seawater intake for the emergency fire pump can be lowered, and MSC.1 / Circ. The water line required by 1388 can be easily submerged.

  In the above-described ship, if the first transportation path that goes back and forth between the upper deck and the second transportation path that goes back and forth between the engine rooms is provided in the installation section, the conventional technique usually evacuates. The passage is located in the engine room, but in this configuration, the first and second traffic paths are provided in the section where the emergency fire pump is installed, allowing traffic from the engine room side. It can be used as an evacuation passage to the deck, and can be evacuated more safely in the event of a fire in the engine room. In addition, when a part of the installation section is adjacent to the engine room, A-60 grade fireproof material is applied to the adjacent wall surface to meet the requirements of the SOLAS regulations.

  Furthermore, at present, in order to secure an evacuation passage in the engine room, it is necessary to provide a dedicated escape trunk formed in a fire-proof structure from the lower part to the upper part. (Access route from the upper deck) and the second traffic route (access route from the engine room side) are located in a safe space outside the engine room, so the second route to and from the engine room to the emergency fire pump installation section By making only the entrance / exit part (escape entrance) to the engine room of 2 traffic roads into a fireproof structure, a safe escape passage (escape route) can be easily provided. Thereby, the evacuation passage can be provided outside the engine room, and the influence on the arrangement space of the devices arranged in the engine room can be reduced.

  In addition to the conventional evacuation passage in the engine room, if an evacuation passage is provided via the area where the emergency fire pump is installed, a plurality of evacuation passages from the engine room can be provided, and safety can be further improved. it can. In addition, if an evacuation passage is provided via an emergency fire pump installation area in place of the conventional evacuation passage in the engine room, the space in the engine room provided with the evacuation passage can be used effectively.

  Therefore, an emergency fire pump can be arranged without making the stern part and engine room part longer, and without being affected by the stern-shaped spine, and between the engine room and the upper deck. The number of traffic routes (access routes) that can be used as evacuation paths can be increased, and the engine room can be evacuated more safely in case of fire.

  In the above-described ship, when the installation section is provided in the lower part of the inboard tank and the first traffic path is provided in the inboard tank, the installation section is easily provided. In addition, since the first traffic path is in the tank on the ship, even when the engine room is in a fire, it is possible to evacuate without worrying about heat.

  In the above-described ship, when the first traffic path is provided in a space between the inboard tank and the ship side skin, it is easier to provide the first traffic path, and the first traffic path is closer to the ship side skin than the ship tank. By being on the side, even if the engine room is in fire, even if the water level of the tank in the ship is low, you can evacuate without worrying about the heat from the engine room.

  In the above-mentioned ship, when a plurality of the first traffic paths are provided, in the prior art, the space between the upper deck and the emergency fire pump installation section is a passage as a maintenance / inspection passage for the emergency fire pump. Although only one is provided, in the present invention, since it is also used for an evacuation passage, by providing a plurality of first traffic paths, evacuation during a fire in the engine room becomes easier and safety can be further enhanced. .

  In the above-mentioned ship, when the seawater intake for the emergency fire pump is disposed immediately below the installation section, the position of the seawater intake is lowered than when the seawater intake is disposed behind the engine room. Specified MSC. 1 / Circ. The water line required by 1388 can be submerged, and the length of the suction pipe can be shortened by reducing the vertical distance between the emergency fire pump and seawater intake, reducing the pressure loss of the suction pipe. Thus, the required suction head can be reduced.

According to the ship of the present invention, the installation section in which the emergency fire pump is arranged is from the front end horizontal bulkhead of the engine room to the rear end horizontal bulkhead of the engine room in the longitudinal direction of the hull and in the width direction of the hull. Is installed in the area outside the engine room from the position of the vertical bulkhead of the engine room to the ship side skin, so that the stern part and the engine room are not lengthened and are not affected by the stern-shaped spine. An emergency fire pump can be arranged. Accordingly, the stern shape remains thin and the boat can travel with good fuel efficiency without slowing down the boat speed, and the amount of carbon dioxide (CO ₂ ) emission can be reduced.

  In addition, the seawater intake for this emergency fire pump can be placed well below the waterline during navigation, ensuring a sufficient required suction head, and ensuring that seawater is supplied to the engine room in an emergency. it can.

  Furthermore, if it is configured to provide a first traffic path to and from the upper deck in the installation section of the emergency fire pump and a second traffic path to and from the engine room, from the engine room to the upper deck One or more evacuation passages can be easily provided, and safety can be improved.

It is a partial side view of a ship showing an installation section provided with an emergency fire pump in the ship of the embodiment according to the present invention. FIG. 2 is a partial perspective view of FIG. 1. It is a figure which shows the positional relationship of the fragmentary perspective view of FIG. It is a X1-X1 arrow view of FIG. It is a Z1-Z1 arrow line view of FIG. It is a Z2-Z2 arrow view of FIG. It is a Z3-Z3 arrow line view of FIG. It is a side view which shows arrangement | positioning to the stern part of the emergency fire-extinguishing pump in a prior art. It is the figure which looked at arrangement | positioning to the stern part of the emergency fire pump of FIG. 8 from the stern side.

  Hereinafter, a ship according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a partial side view of a ship showing an installation section provided with an emergency fire pump in the ship according to the embodiment of the present invention. The range of X1 to X2 is Y2- shown in FIGS. The view from the Y2 arrow is shown, and the others are side cross-sectional views of the center of the hull (Yc-Yc) and (Y1-Y1).

  FIG. 2 is a perspective view showing the X1-X2 portion in the ship length direction of FIG. 1, the starboard side portion from Y1 in the ship width direction, and the portion below Z3 in the up-down direction. FIG. 3 is a diagram illustrating the positional relationship of FIG. 4 is an X1-X1 arrow view, and FIGS. 5 to 7 are a Z1-Z1 arrow view, a Z2-Z2 arrow view, and a Z3-Z3 arrow view, respectively.

  As shown in FIGS. 1-7, the ship 1 of embodiment which concerns on this invention is double formed with the upper upper deck 2, the lower ship bottom outer board 3, and the inner ship bottom inner board 4 in it. It has a double-shell structure formed by a bottom structure, a ship side outer plate 6 that surrounds the side between them, and a ship side inner plate 7 inside. A space portion 5 is provided between the double bottom structures of the ship bottom, and a void space (space portion) 8 is provided between the double shell structures on the side.

  An engine room 10 is provided in the center behind the stern. At the rear end of the engine room 10 is provided a rear end transverse bulkhead 10a that is a vertical wall extending in the width direction of the ship (the left-right direction of the ship: the Y direction). It is a partition between the chamber (steering machine chamber) 12 and the aft peak tank 13. The aft peak tank 13 is in contact with the bottom of the stern portion 1 a, and the steering machine room 12 is disposed on the aft peak tank 13.

  Further, a front end transverse bulkhead 10b, which is a vertical wall extending in the width direction of the ship, is provided at the front end of the engine room 10, and this front end transverse bulkhead 10b is a tanker ship or the like as shown in FIG. It is a partition between the cofferdam 11 and the pump room, and a partition between the pump carrier and the bulk carrier. In a bulk carrier or the like, it is a partition between the cargo hold of the bulk carrier adjacent to the front.

  In addition, a residential area 14 is provided above the engine room 10, and a bridge (not shown) is further provided above. A space portion 5 is provided under the engine room 10 by a double bottom structure of a ship bottom outer plate 3 and a ship bottom inner plate 14.

  On the side of the engine room 10, an inboard tank 15 is provided adjacent to the outside of the vertical partition 10c, which is a partition in the ship width direction of the engine room 10 and extends in the ship length direction (X direction). A void space (space portion) 8 is provided between the double shell structure formed by the ship side inner plate 7 and the ship side outer plate 6 constituting the outer wall of the inboard tank 15.

  As shown in FIG. 1 to FIG. 7, an installation section 21 for installing an emergency fire pump 22 is provided under the inboard tank 15, and an emergency operation is performed on the ship bottom inner plate 7 that is a bottom plate of the installation section 21. A fire extinguishing pump 22 is arranged. The installation section 21 may be provided inside the inboard tank 15 instead of under the inboard tank 15.

In short, is related to the front-rear direction X of the hull, behind the rear transverse bulkhead 9a of the last cargo 9 (regions shown in FIG. 1 Rx), more preferably, the engine room from the front end transverse bulkhead 10b of the engine room 10 10 to the rear end lateral bulkhead 10a, and in the width direction Y of the hull, the area outside the engine room 10 from the position of the vertical bulkhead 10c of the engine room 10 to the ship side skin 6 (area Ry shown in FIG. 4). An installation section 21 for installing the emergency fire pump 22 is provided inside (Rx & Ry).

  As for the arrangement position of the floor surface of the installation section 21 in the vertical direction, it is preferable to make the necessary suction heads Sh1 and Sh2 of the emergency fire pump 22 as small or negative as possible, and it is desirable to arrange them as low as possible.

  As described above, when the installation section 21 is provided under the inboard tank 15, it is possible to arrange the emergency fire pump chamber while securing the volume of the original inboard tank. If the emergency fire pump 22 is installed in the inboard tank 15, even if the ship side skin 3 of the ship 1 is damaged due to a collision or the like, the installation section 21 provided in the inboard tank 15 is affected by the damage. Therefore, there is an advantage that the safety of the emergency fire pump 22 can be remarkably improved.

  When a part of the wall surface of the installation section 21 of the emergency fire pump 22 is adjacent to the engine room 10, the adjacent wall surface (vertical partition wall: hatched portion in FIGS. 2 and 3) 10c A fireproof material is applied to make an A-60 grade fireproof structure, which meets the requirements of SOLAS regulations.

  According to this configuration, since the installation section 21 in which the emergency fire pump 22 can be arranged is provided on the ship side of the engine room 10, the ship width is remarkably wider than the rear part of the engine room 10 in which the hull shape is narrow. Can be used for the installation section 21. As a result, a space necessary for the arrangement of the emergency fire pump 22 can be ensured to some extent, and a reasonable arrangement is possible. Moreover, the necessary suction lift of the emergency fire-extinguishing pump 22 can be easily obtained by lowering the pump installation position and reducing the actual lift.

  At the same time, a seawater intake (sea chest) 24 for the emergency fire pump 22 is disposed immediately below the installation section 21. With this configuration, the position of the seawater intake port 24 for the emergency fire pump 22 can be arranged lower than the ballast water line Wb, and MSC.1 / Circ. The water line required by 1388 can be easily submerged. Accordingly, the seawater intake 24 is disposed below the ballast water line Wb so that it is always in a submerged state during navigation.

  Further, the emergency fire pump 22 and the seawater intake 24 are connected by a suction pipe 23. With this configuration, the distance between the emergency fire pump 22 and the seawater intake 24 becomes the shortest distance, and the length of the suction pipe 23 can be shortened, so the pressure loss in the suction pipe 23 is reduced and the required suction head is reduced. be able to. Further, piping (not shown) necessary for emergency fire extinguishing is provided from the emergency fire pump 22 to a part necessary for fire fighting work.

  Further, a first traffic path 16 that is a section communicating between the installation section 21 and the upper deck 2 is provided, and an access hatch (not shown) is provided at the top of the first traffic path 16. A traffic ladder 17 is provided inside 16 so that it can go back and forth between the installation section 21 and the upper deck 2.

  Although not particularly shown, the installation section 21 is provided with ventilation equipment and lighting equipment necessary for maintenance and inspection, and the discharge pipe of the emergency fire pump 22 and the ventilation pipe of the installation section 21 which is a pump room are It arrange | positions so that it may pass out of the cargo area on the upper deck 2 through the void space 8 of a heel side part. With these configurations, maintenance / inspection of the emergency fire pump 22, suction pipe 23, seawater intake 24, fire extinguishing pipe (not shown), etc. is facilitated, and maintenance / inspection can be performed efficiently.

  Further, according to the present invention, as shown in the perspective view of FIG. 2 and the Z1-Z1 arrow view of FIG. A door 10d having a structure (cross-hatch portion in FIGS. 2 and 3) is provided as a second horizontal traffic path 10d that goes back and forth between the installation section 21 and the engine room 10. By providing the second traffic path 16d, an evacuation passage (escape route) that passes from the engine room 10 to the upper deck 2 via the installation area 21 can be formed by the first traffic path 16 and the second traffic path 10d.

  In the configuration of FIGS. 1 to 7, one of the first traffic paths 16 is located in the inboard tank 15 along the vertical partition wall 10 c of the engine room 10, and between the ship side inner plate 7 and the ship side outer plate 6 of the inboard tank 15. The void space 8 is provided. According to this configuration, since the first traffic path 16 is in the inboard tank 15, the engine room 10 is cooled by the liquid in the inboard tank 15 even in the event of a fire, so there is no need to worry about heat. You can evacuate with confidence. The other of the first traffic paths 16 is provided in the void space 8 between the inboard tank 15 and the ship side outer plate 6. According to this configuration, even if the water level of the inboard tank 15 is low when the engine room 10 is in a fire, heat from the engine room 10 is blocked by the two wall surfaces of the vertical partition wall 10c of the engine room 10 and the ship side inner plate 7. Evacuate safely without worrying about the heat from the engine room 10.

  In addition, when a plurality of first traffic paths 16 are provided in this way, a plurality of evacuation passages are provided, and evacuation in the event of a fire in the engine room 10 becomes easier and safety is further improved. However, in some cases, it may be only in the inboard tank 15 or in the void space 8 alone.

  According to the ship 1 having the above-described configuration, the emergency fire pump 22 can be disposed without making the stern portion 1a and the engine room 10 longer, and without being affected by the stern-shaped spine. The seawater intake port 24 for the emergency fire pump 22 can be disposed well below the draft lines Wf and Wb at the time of navigation, so that a sufficient necessary suction head can be secured, and seawater can be reliably supplied to the engine room 10 in an emergency. In addition to being able to extinguish the fire, it is possible to easily secure an evacuation passage from the engine room 10 through the second traffic path 10d, the installation section 21, and the first traffic path 16.

  The ship of the present invention is affected by the stern-shaped spine without correcting the diagram, without reducing the speed of the ship, which is the most important item in performance, without lengthening the stern part or the engine room. The emergency fire pump can be installed without any problem, and the seawater intake for this emergency fire pump can be placed well below the waterline during navigation, ensuring a sufficient suction head. In addition, seawater can be reliably supplied to the engine room in an emergency, and an escape passage from the engine room can be easily secured, so that it can be used as many ships.

1, 1X Ship 1a Stern part 5 Space part 6 Ship side outer plate 7 Ship side inner plate 8 Void space (space part)
9 Cargo hold 9a Rear horizontal bulkhead 10 at the rear cargo hold Engine room 10a Engine room rear end horizontal bulkhead 10b Engine room front end horizontal bulkhead 10ba Engine room lower front end horizontal bulkhead 10c Vertical bulkhead 10d Fire-proof door (second traffic Road)
15 Inboard tank 16 First traffic path 21 Installation section 22 Emergency fire pump 23 Suction pipe 24 Seawater intake (sea chest)
Wb Ballast water line Wf Full load water line

Claims (6)

The front and rear direction of the hull is from the front bulkhead of the engine room to the rear bulkhead of the engine room, and the width of the hull is the outside of the engine room from the position of the vertical bulkhead of the engine room to the ship side skin. A ship with an installation section in the area where an emergency fire pump is installed.   The ship according to claim 1, wherein a first traffic path that goes back and forth between the upper deck and a second traffic path that goes back and forth between the engine rooms is provided in the installation section.   The ship according to claim 1 or 2, wherein the installation section is provided in a lower part of the inboard tank and the first traffic path is provided in the inboard tank.   The ship according to any one of claims 1 to 3, wherein the first traffic path is provided in a space between the inboard tank and a ship side skin.   The ship according to any one of claims 1 to 4, wherein a plurality of the first traffic paths are provided.   The marine vessel according to any one of claims 1 to 5, wherein a seawater intake port for the emergency fire extinguishing pump is disposed immediately below the installation section.

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