JP7627136B2 - Ships - Google Patents

Description

The present invention relates to a ship.

A conventional ship is described in Patent Document 1. This ship includes a cargo handling section for storing cargo, an engine room for the main engine, a pump room for pumps, and the like. Inside the ship, various devices operate at the required times to propel the ship and drive pumps for cargo handling.

JP 2008-132974 A

Now, in ships such as those described above, storage batteries may be installed. In this case, the storage batteries can store electricity generated by the energy of certain operations within the ship (such as the rotation of the propeller by the main engine) and supply power for the operation of various devices. However, it may be difficult to place them in the limited space on the ship. On the other hand, if an independent battery room or the like is provided to place the storage batteries, the ship will become larger, which is a problem.

Therefore, the present invention aims to provide a ship that can effectively utilize storage batteries while preventing the ship from becoming too large.

The vessel according to the present invention comprises a ventilation chamber in which a ventilation mechanism is provided, and a storage battery for storing electric power, the storage battery being disposed within the ventilation chamber.

The ship is equipped with a storage battery that stores electric power. The storage battery can store electric power generated by a specific power source in the ship (power from the main engine that rotates the propeller). The storage battery can also supply the stored electric power at an appropriate time for the operation of various devices. Here, the storage battery is arranged in a ventilation room in which a ventilation mechanism is provided. In this way, it is possible to reduce the need to provide a new battery room dedicated to arranging the storage battery, and to arrange the storage battery in the ventilation room, which is an existing space in the ship, thereby saving space inside the ship. In addition, ventilation is required where the storage battery is arranged, but an existing ventilation mechanism (ventilation by a fan) is provided in the ventilation room. Therefore, by arranging the storage battery in the steering room and reusing the existing ventilation mechanism, it is possible to prevent the ship from becoming larger due to an increase in equipment and the increase in equipment. As a result, the storage battery can be effectively used while preventing the size from increasing. Note that the engine room is another room in which a ventilation mechanism by a fan is provided. For this reason, the storage battery may be provided in the engine room.

The ventilation room is a steering room in which a steering gear for operating the rudder is located, and the storage battery may be located in the steering room. In this case, the area where the storage battery is located can be ventilated using a ventilation mechanism (fan ventilation) that is already installed in the steering room as an existing facility.

The storage battery may be placed on the bow side of the steering gear. The steering gear is placed directly above the rudder located on the stern side. Therefore, within the steering room, there is more space on the bow side than on the stern side of the steering gear. In this way, by placing the storage battery in a place where there is more space, it is possible to improve the freedom of placement.

The steering room may be constructed over multiple floors, and the storage battery may be located on at least one of the floors. In this case, it is possible to effectively utilize the vertical space of the steering room when arranging the storage battery.

The storage battery may be capable of storing electricity generated by the rotation of the propeller shaft of the propeller shaft system. The propeller shaft rotates by the power of the highly efficient main engine. Therefore, a portion of the power of the highly efficient main engine can be recovered as electricity, and the storage battery can store this electricity.

The storage battery may be capable of supplying power to a device that rotates the rotating shaft of the propeller of the propulsion shaft system. For example, when propelling a ship at low speed in a harbor, the main engine can be stopped and the propeller can be rotated using power from the storage battery. In this way, the main engine can be stopped, which suppresses the generation of smoke in harbors and the like, thereby reducing air pollution in harbors.

The storage battery may be capable of supplying power to equipment that operates during loading and unloading. For example, if the equipment that operates during loading and unloading is driven by a turbine using steam from a boiler or a motor using electricity from a generator, the boiler or generator that serves as the driving source must be enlarged, even though it is only used during loading and unloading. In contrast, if the equipment that operates during loading and unloading uses electricity stored in the storage battery, the enlargement of the driving source as described above can be prevented, and air pollution at the port can be reduced.

The ship may be a tanker. This prevents the tanker from becoming too large and allows for effective use of the storage batteries inside the tanker.

The present invention provides a ship that can effectively utilize storage batteries while preventing the ship from becoming too large.

FIG. 1 is a side view showing a marine vessel according to an embodiment of the present invention. FIG. 2 is an enlarged view of the stern portion of the vessel of FIG. 1 . FIG. 2 is a schematic diagram showing an example of the arrangement of storage batteries in a steering room. FIG. 2 is a schematic diagram showing an example of the arrangement of storage batteries in a steering room. FIG. 2 is a schematic diagram showing a connection structure between electrical devices in a ship. 5A to 5C are schematic diagrams showing the flow of electricity in each current conduction mode. 5A to 5C are schematic diagrams showing the flow of electricity in each current conduction mode. 5A to 5C are schematic diagrams showing the flow of electricity in each current conduction mode. 5A to 5C are schematic diagrams showing the flow of electricity in each current conduction mode.

A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, the same or equivalent parts will be designated by the same reference numerals, and duplicated descriptions will be omitted.

Figure 1 is a side view showing a ship according to an embodiment of the present invention. Figure 2 is an enlarged view showing the stern portion of the ship in Figure 1. As shown in Figure 1, the ship 1 of this embodiment is a tanker or the like having a storage area for storing cargo, and is equipped with a hull 2, a propulsion shafting system 3, and a rudder 4. In the following description, the direction toward the bow may be referred to as "forward" and the direction toward the stern may be referred to as "aft."

The hull 2 has an engine room 6 on the stern side. The engine room 6 is a space for arranging equipment such as the main engine. The main engine drives the propeller of the propulsion shaft system 3. A pump room 5 is provided on the bow side of the engine room 6. The hull 2 has, from top to bottom, a steering room 7, a space under the steering room 8, and a stern structure 9 on the stern side of the engine room 6. The steering room 7 is a space for arranging a steering gear for steering the rudder 4. The space under the steering room 8 is a space provided below the steering room 7. The stern structure 9 is provided below the space under the steering room 8 and is a part that constitutes part of the propulsion shaft system 3. A cargo oil tank, ballast tanks, etc. are provided on the bow side of the pump room 5.

Next, the structure on the stern side will be described in more detail with reference to Figure 2. As shown in Figure 2, the space under the steering room 8 is provided so as to slope downward from the rear end of the stern side of the hull 2 towards the bow side. Therefore, the rear end of the stern structure 9 is located closer to the bow than the rear end of the hull 2. The rear end of the stern structure 9 has a shape that protrudes towards the stern side, and the propeller 11 of the propulsion shaft system 3 is provided at the tip of this protruding shape.

The propulsion shafting system 3 is a mechanism that generates the propulsive force of the ship 1. The propulsion shafting system 3 is provided to the stern structure 9. The propulsion shafting system 3 is disposed below the space under the steering room 8, and is disposed at a position at least lower than the water surface when the ship 1 is in operation. The propulsion shafting system 3 includes a propeller 11 and a rotating shaft 12. The propeller 11 rotates in conjunction with the rotation of the rotating shaft 12, thereby generating a water current toward the rear. The rotating shaft 12 extends horizontally from the propeller 11 toward the bow inside the stern structure 9. The bow-side end of the rotating shaft 12 is given rotational force from the main engine 21 in the engine room 6.

The rudder 4 is a mechanism for changing the direction of the ship 1. The rudder 4 comprises a rudder blade 13 and a rotating shaft 14. The rudder blade 13 is disposed in the space under the steering room 8 and on the stern side of the stern structure 9, and is disposed at a position at least lower than the water surface when the ship 1 is in operation. The rudder blade 13 is also disposed in a position facing the propeller 11 on the stern side.

The rudder blade 13 extends vertically while being spread out in the fore-and-aft direction. The upper end of the rudder blade 13 is connected to a rotating shaft 14. The rotating shaft 14 extends upward from the upper end of the rudder blade 13. The rotating shaft 14 extends through the space under the steering room 8 to the inside of the hull 2. The rotating shaft 14 extends to the steering room 7 and is connected to a steering gear 16 provided in the steering room 7. The steering gear 16 can change the direction by rotating the rotating shaft 14 to rotate the rudder blade 13 around the rotating shaft 14.

In addition to the main engine 21, the engine room 6 is provided with a main switchboard 22, a diesel generator 23, a shaft generator 24, and a cargo oil pump motor 26. The main switchboard 22 is a device for distributing power to each electrical device on the ship 1. The main switchboard 22 is supplied with power generated on board and distributes the power to appropriate devices on board. In this embodiment, it is possible to automatically or manually switch between the diesel generator 23, the shaft generator 24, and the storage battery 30. The diesel generator 23 is a device for generating power using fuel. The diesel generator 23 supplies the generated power to the main switchboard 22.

The shaft generator 24 is a device that converts the rotational force of the rotating shaft 12 of the propeller 11 into electric power. The shaft generator 24 is provided on the rotating shaft 12 between the propeller 11 and the main engine 21. When the main engine 21 rotates the rotating shaft 12, the shaft generator 24 generates electric power by converting a part of the rotational force into electric power. The shaft generator 24 supplies the generated electric power to the main switchboard 22. The shaft generator 24 is also supplied with electric power from the main switchboard 22. When supplied with electric power, the shaft generator 24 can also function as a motor that rotates the rotating shaft 12. The cargo oil pump motor 26 is a device that generates driving force for driving the pump 27 in the pump room 5.

The ship 1 is equipped with a storage battery 30 that stores electricity generated on board. The storage battery 30 receives electricity generated by the shaft generator 24 and the diesel generator 23 via the main switchboard 22 and stores the electricity. The storage battery 30 also supplies electricity to necessary equipment on board via the main switchboard 22 by discharging electricity at times when electricity is needed on board. A charge/discharge panel 31 that manages the charging and discharging of the storage battery 30 is provided between the storage battery 30 and the main switchboard 22.

In this embodiment, the storage battery 30 is arranged in the steering room 7. The charging and discharging panel 31 is also arranged in the steering room 7. The steering room 7 is provided with a ventilation section 33 with the outside. The ventilation section 33 is composed of a ventilator installed on the ceiling of the steering room 7, i.e., on the deck. The ventilation section 33 is equipped with a mechanism for exhausting air from inside the steering room 7, such as a fan. The steering room 7 is also provided with an opening for intake air. This allows the ventilation section 33 to ventilate the steering room 7 with outside air. The ventilation section 33 can function as a facility for ventilating the installation space of the steering gear 16, and at the same time, can also function as a facility for ventilating the installation space of the storage battery 30.

Next, referring to FIG. 3, a specific example of the arrangement of the storage battery 30 in the steering room 7 will be described. FIG. 3(a) is a schematic diagram showing the state inside the steering room 7 when viewed from above. FIG. 3(b) is a schematic diagram showing the state inside the steering room 7 when viewed from the starboard side. As shown in FIG. 3(a), the steering room 7 has a front wall portion 7a on the bow side, a rear wall portion 7b on the stern side, a side wall portion 7c on the starboard side, a side wall portion 7d on the port side, a floor portion 7e, and a ceiling portion 7f (see FIG. 3(b)). The front wall portion 7a also functions as a bulkhead portion with the engine room 6. The floor portion 7e also functions as a bulkhead portion with the space under the steering room 8. The ceiling portion 7f also functions as a deck. The steering room 7 is configured such that the width from left to right becomes wider as it approaches the bow side. Therefore, the width dimension from left to right is larger for the front wall portion 7a than for the rear wall portion 7b. Additionally, the left and right side walls 7c and 7d have a shape that widens in the width direction as they move from the rear wall 7b to the front wall 7a.

The steering gear 16 is an equipment located directly above the rudder 4. Therefore, the steering gear 16 is located on the stern side of the steering room 7. In this way, since the steering gear 16, which occupies a large space, is located closer to the stern side, the bow side of the steering room 7 has more space in the fore-and-aft direction. Furthermore, since the bow side of the steering room 7 is wider from side to side, there is even more space. Therefore, the storage battery 30 and the charging/discharging panel 31 are located on the bow side of the steering gear 16. Here, the storage battery 30 and the charging/discharging panel 31 are located in the space between the front wall 7a and the steering gear 16 in the fore-and-aft direction. In addition, the storage battery 30 has a long and thin shape from side to side and is located in that space. The charging/discharging panel 31 is located in a position adjacent to the storage battery 30 in the left-right direction. The electric wires of the current-carrying line L1 connected to the storage battery 30 and the charging/discharging panel 31 are routed to the main distribution board 22 of the engine room 6 via the front wall 7a. Because the storage battery 30 and the charging/discharging panel 31 are located on the bow side, the length of the electric wires of the current carrying line L1 inside the steering room 7 can be shortened.

As shown in FIG. 3(b), the steering gear 16, the storage battery 30, and the charging/discharging panel 31 are installed on the floor 7e. The space in which the steering gear 16, the storage battery 30, and the charging/discharging panel 31 are arranged continues up to the ceiling 7f. Therefore, the air around the steering gear 16, the storage battery 30, and the charging/discharging panel 31 is ventilated through the ventilation section 33.

Also, an arrangement as shown in FIG. 4 may be adopted. In the example shown in FIG. 4, the steering room 7 is configured with multiple floors (here, the second floor). Such a configuration can be adopted when the ceiling 7f of the steering room 7 is high. FIG. 4(a) is a schematic diagram showing the first floor of the steering room 7 as viewed from above. FIG. 4(b) is a schematic diagram showing the second floor of the steering room 7 as viewed from above. FIG. 4(c) is a schematic diagram showing the inside of the steering room 7 as viewed from the starboard side. As shown in FIG. 4(c), the steering room 7 is configured as a two-story space by dividing the space between the floor 7e and the ceiling 7f by the second floor floor 7g. The second floor floor 7g forms the floor of the second floor and also forms the ceiling of the first floor.

As shown in FIG. 4(a), the steering gear 16, the charging/discharging panel 31, and the storage battery 30 are arranged on the first floor of the steering room 7. The position and shape of the steering gear 16 and the charging/discharging panel 31 are the same as those shown in FIG. 3. On the other hand, the storage battery 30 is divided into a plurality of units. On the first floor, a pair of storage battery 30 units are arranged on the bow side of the steering room 7, near the left and right side walls 7c and 7d. As shown in FIG. 4(b), on the second floor, a plurality of storage batteries 30 are arranged in a line across the entire area. On the second floor, the storage battery 30 units are arranged in a row on the stern side and a row on the bow side. The row on the bow side has a larger number of storage battery 30 units than the row on the stern side. The arrangement of the storage battery 30 on each floor is not limited to that shown in FIG. 4. Furthermore, the storage battery 30 unit only needs to be placed on at least one of the floors; for example, the storage battery 30 unit may be placed only on the second floor.

A duct 36 is provided from the ventilation section 33, which extends into the space of the steering room 7. The duct 36 has an opening 36a that extends downward and opens into the space on the first floor, and an opening 36b that branches off and opens into the space on the second floor. As a result, the space on the first floor is ventilated through the opening 36a, and the space on the second floor is ventilated through the opening 36b.

Next, an example of the electricity distribution mode by the main switchboard 22 for utilizing the storage battery 30 will be described with reference to Figs. 5 to 9. Fig. 5 is a schematic diagram showing the connection structure between each electrical device in the ship 1. Figs. 6 to 9 are schematic diagrams showing the flow of electricity in each current supply mode. As shown in Fig. 5, the storage battery 30 and the charge/discharge board 31 are connected to the main switchboard 22 via a current supply line L1. The diesel generator 23 is connected to the main switchboard 22 via a current supply line L2. The shaft generator 24 is connected to the main switchboard 22 via a current supply line L3. The cargo oil pump motor 26 is connected to the main switchboard 22 via a current supply line L4. The other devices 29 of the ship 1 are connected to the main switchboard 22 via a current supply line L5. In Figs. 6 to 9, among the current supply lines, the current supply lines through which electricity flows are shown by solid lines, and the current supply lines through which electricity does not flow are shown by dashed lines.

Figure 6 is a schematic diagram showing the flow of electricity in the current-carrying mode during sailing. During sailing, the main engine 21 rotates the propeller 11 via the rotating shaft 12 to propel the ship 1. At this time, the shaft generator 24 converts the rotational force of the rotating shaft 12 into electricity to generate power. The shaft generator 24 supplies power to the main switchboard 22 via the current carrying line L3. The main switchboard 22 supplies power to other equipment 29 via the current carrying line L5. The main switchboard 22 also supplies power to the storage battery 30 via the current carrying line L1. As a result, the storage battery 30 stores the power generated by the shaft generator 24.

Figure 7 is a schematic diagram showing the flow of electricity in the energized mode during loading and unloading. During loading and unloading, the ship is stopped at the port, so the main engine 21 is stopped. The storage battery 30 discharges and supplies power to the main switchboard 22 via the energized line L1. The main switchboard 22 supplies power to the cargo oil pump motor 26 via the energized line L4. This activates the cargo oil pump 27 to perform loading and unloading work. The main switchboard 22 supplies power to other equipment 29 via the energized line L5. At this time, the shaft generator 24 and diesel generator 23 stop generating power. Therefore, the use of boilers and generators at the port is refrained, and smoke generated at the port can be reduced.

Figure 8 is a schematic diagram showing the flow of electricity in the energization mode during low-speed navigation in a harbor. In a harbor, it is preferable to refrain from using the main engine 21 and the generator from the viewpoint of reducing air pollution, so the main engine 21 and the diesel generator 23 are stopped. Therefore, the ship 1 is propelled at a low speed by using the power of the storage battery 30. Specifically, the storage battery 30 discharges and supplies power to the main switchboard 22 via the current line L1. The main switchboard 22 supplies power to the shaft generator 24 via the current line L3. As a result, the shaft generator 24 operates as a motor and applies rotational force to the rotating shaft 12. Therefore, the propeller 11 rotates at a low speed within the range possible with the power of the storage battery 30. The main switchboard 22 supplies power to other equipment 29 via the current line L5. As described above, the main engine 21 and the diesel generator 23 are stopped. Therefore, the use of the boiler and the generator in the harbor is refrained, and the smoke generated in the harbor can be reduced.

Figure 9 is a schematic diagram showing the flow of electricity in the energizing mode when the shaft generator 24 fails or the capacity of the storage battery 30 decreases. At this time, as in Figure 8, the shaft generator 24 cannot generate electricity. Therefore, the diesel generator 23 generates electricity and supplies it to the main switchboard 22 via the current line L2. The main switchboard 22 supplies electricity to other equipment 29 via the current line L5.

Next, the action and effect of the vessel 1 according to this embodiment will be described.

The ship 1 is equipped with a storage battery 30 that stores electric power. The storage battery 30 can store electric power generated by a predetermined power source within the ship 1, for example, the highly efficient power of the main engine 21 that rotates the propeller 11. The storage battery 30 can also supply the stored electric power at an appropriate time for the operation of various devices. Here, the storage battery 30 is arranged in the steering room 7 (ventilation room). In this way, it is possible to reduce space inside the ship by suppressing the need to provide a new dedicated battery room for arranging the storage battery 30 and arranging the storage battery 30 in the steering room 7, which is an existing space in the ship 1. In addition, while ventilation is required in the location where the storage battery 30 is arranged, an existing ventilation mechanism (ventilation section 33 that can ventilate by a fan) is provided in the steering room 7. Therefore, by arranging the storage battery 30 in the steering room 7 and reusing the existing ventilation mechanism, it is possible to suppress the increase in size of the ship 1 due to the increase in equipment and the increase in equipment. As described above, the storage battery 30 can be effectively used while suppressing the increase in size.

The storage battery 30 may be placed on the bow side of the steering gear 16. The steering gear 16 is placed directly above the rudder 4 located on the stern side. Therefore, within the steering room 7, there is more space on the bow side than on the stern side of the steering gear 16. In this way, by placing the storage battery 30 in a place where there is more space, it is possible to improve the freedom of placement.

The steering room 7 may be constructed over multiple floors, and the storage battery 30 may be placed on at least one of the floors. In this case, the vertical space of the steering room 7 can also be effectively utilized to place the storage battery 30.

The storage battery 30 may be capable of storing electricity generated by the rotation of the rotating shaft 12 of the propeller 11 of the propulsion shaft system 3. The rotating shaft 12 of the propeller 11 rotates by the power of the highly efficient main engine 21. Therefore, the shaft generator 24 can convert part of the power of the highly efficient main engine 21 into electricity and recover it, and the storage battery 30 can store this electricity.

The storage battery 30 may be capable of supplying power to a device (shaft generator 24) that rotates the rotating shaft 12 of the propeller 11 of the propulsion shaft system 3. For example, when propelling the ship 1 at low speed in a harbor, the main engine 21 can be stopped and the propeller 11 can be rotated by power from the storage battery 30. In this way, since the main engine 21 can be stopped, smoke generation in the harbor can be suppressed, and air pollution in the harbor can be reduced.

The storage battery 30 may be capable of supplying power to equipment (cargo oil pump 27) that operates during loading and unloading. For example, if the cargo oil pump 27 that operates during loading and unloading is driven by a turbine using steam from a boiler or a motor using electricity from a generator, it becomes necessary to enlarge the boiler or generator that serves as the driving source, even though they are only used during loading and unloading. In contrast, if the cargo oil pump 27 that operates during loading and unloading uses electricity stored in the storage battery 30, it is possible to prevent the driving source from becoming larger as described above. In addition, it is possible to prevent smoke from being generated in ports and the like, thereby reducing air pollution in ports and the like.

The ship 1 may be a tanker. This prevents the tanker from becoming too large and allows the storage batteries inside the tanker to be used effectively.

The present invention is not limited to the above-described embodiments.

For example, the arrangement of the storage battery 30 in the steering room 7 shown in Figures 3 and 4 is merely an example, and may be modified as appropriate without departing from the spirit of the present invention.

The configuration and current supply of the electrical system of the vessel 1 shown in Figures 5 to 9 are merely examples and may be modified as appropriate without departing from the spirit of the present invention.

In addition, in the above embodiment, the ship is a tanker, which is particularly suitable, but the invention can also be applied to dual-purpose ships that can carry not only oil but also solid cargo (bulk) such as ore and coal, and other vessels.

In the above embodiment, a steering room is given as an example of a ventilation room. However, the ventilation room may be any room that is at least equipped with a fan function. In addition to a steering room, such a ventilation room may also be an engine room equipped with a ventilation mechanism such as a fan. Therefore, a storage battery may be provided in the engine room.

1...ship (tanker), 3...propulsion shaft system, 4...rudder, 7...steering room (ventilation room), 11...propeller, 12...rotating shaft, 16...steering gear, 30...storage battery

Claims (8)

a ventilation room in which a ventilation mechanism is provided;
A storage battery that stores power,
The storage battery is disposed in the ventilation chamber,
The storage battery stores electric power generated by a predetermined power source in the ship,
The ship has a mode in which the main engine is stopped and the electric power stored in the storage battery is supplied to a supply unit . The ventilation room is a steering room in which a steering gear for operating a rudder is arranged,
The vessel according to claim 1 , wherein the storage battery is disposed in the steering room. The vessel according to claim 2, wherein the storage battery is disposed closer to the bow than the steering gear. The ship according to claim 2 or 3, wherein the steering room is constructed on multiple floors, and the storage battery is arranged on at least one of the floors. The ship described in any one of claims 1 to 4, wherein the storage battery is capable of storing electricity generated by the rotation of the rotating shaft of the propeller of the propulsion shaft system. The ship according to any one of claims 1 to 5, wherein the storage battery, as the supply unit, is capable of supplying electric power to a device that rotates a rotating shaft of a propeller of a propulsion shaft system. The ship according to any one of claims 1 to 5, wherein the storage battery, as the supply unit, is capable of supplying power to equipment that operates during loading and unloading. The vessel according to any one of claims 1 to 7, wherein the vessel is a tanker.

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