JP2015143099A - Electric propulsion passenger ship capable of securing safety of passengers in passenger room - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric propulsion passenger ship which has taken measures for suppressing damage to a minimum level, in the case of an accident.SOLUTION: An electric propulsion passenger ship 10 has a passenger room 12, and a power source disposed in a power room 20 disposed on a rear side of the passenger room 12 and divided with the passenger room. On an upper wall part of a wall part of a ship body forming the power room, a hatch 23 whose intensity to air blast is low relative to that of the wall part, is provided. In addition, the ship body is preferably made of aluminum.

Description

  The present invention relates to an electric propulsion passenger ship, and more particularly, to an electric propulsion passenger ship equipped with a lithium ion battery as a power source for supplying electric power to a propulsion motor that drives a screw.

  In recent years, ships equipped with an electric propulsion system have been developed in order to reduce greenhouse gases such as exhaust gas and carbon dioxide generated during navigation. For example, in Patent Document 1, a technology for propelling a ship by mounting a hybrid power source composed of a power generation device and a storage battery charged by the power generation device on a ship and supplying electric power from the storage battery in the hybrid power supply to a propulsion motor. Is disclosed.

JP 2011-235840 A

  The technology of Patent Document 1 is equipped with a hybrid power supply, and regenerative power generated in the propulsion motor during charging is charged to the storage battery to effectively use energy. Basically, the output power of the generator Is to be navigated by.

  In order to further enhance the energy saving effect, it is conceivable to sail for a long time using only the electric power of the storage battery. For that purpose, it is effective to use a large-capacity lithium ion battery. In particular, when the hull is made of aluminum, it is very lightweight, so it can be said that it is suitable for navigation using only the power of the lithium ion battery. However, when using a lithium-ion battery, if the electrolyte leaks for some reason, the volatilized gas will not stay, or the damage will be kept to a minimum in case of an explosion, and the damage will not spread. Desired. Of course, such a request is stronger in the case of passenger ships.

  The present invention has been made in view of the above, and it is an object of the present invention to provide an electric propulsion passenger ship having a hull mounted with a lithium ion battery and provided with measures for minimizing damage in case of an accident. And

  In order to solve the above problems, the electric propulsion passenger ship of the present invention is characterized in that the hull is made of aluminum and a lithium ion battery is used as a power source. In order to solve the above problems, the electric propulsion passenger ship of the present invention is an electric propulsion passenger ship provided with a passenger cabin, the hull is made of aluminum, and uses a lithium ion battery as a power source, The battery unit including the lithium ion battery is disposed in a power room provided in a rear part of the hull so as to be separated from a passenger cabin.

  It is preferable that the power room is provided apart from the passenger cabin by a predetermined distance via a partition wall. It is preferable that a weak body portion having a relatively low strength is provided at an appropriate location on the wall portion of the hull forming the power chamber. The weak body portion is preferably formed from a hatch formed on the upper wall portion of the hull. The hatch is preferably made of a synthetic resin plate. It is preferable that the battery unit is provided at a predetermined height from the ship bottom. It is preferable that an air-cooling ventilation unit for cooling the battery unit is provided at an appropriate location on the wall portion of the hull forming the power chamber. It is preferable that an emergency propulsion power unit driven by fuel is provided at the rear of the hull.

  According to the electric propulsion passenger ship of the present invention, since the power room in which the battery unit including the lithium ion battery is arranged is partitioned from the passenger room, even if an explosion occurs in the power room for some reason, The safety of passengers in the passenger cabin can be secured.

  Moreover, even if an explosion occurs in the power chamber for some reason by providing a weak body portion with a relatively low strength at an appropriate location on the wall portion of the hull that forms the power chamber, the weak body portion is caused by the blast. Is opened or blown away. Therefore, damage to the wall portion of the power room can be reduced, and damage to the travel cabin can be further reduced. By making the weak body part a hatch formed on the upper wall part of the hull, damage to the bottom of the ship at the time of explosion can be reduced, and it helps to avoid intrusion of water from the bottom of the ship.

FIG. 1 is a side view of an electric propulsion passenger ship according to an embodiment of the present invention. FIG. 2 is a side view schematically showing an internal state of the electric propulsion passenger ship of FIG. FIG. 3 is a plan view schematically showing an internal state of the electric propulsion passenger ship of FIG.

Hereinafter, the present invention will be described in more detail based on embodiments shown in the drawings. As shown in FIGS. 1 to 3, the electric propulsion passenger ship 10 according to the embodiment of the present invention has a hull 11 made of aluminum (including an aluminum alloy), for example, a total length of 10 to 20 m, a width of 3 to 5 m, and a capacity. Some dozen people. Of course, the present invention is applicable to both larger and smaller sizes. By making it aluminum, the hull can be reduced in weight, and it is suitable for propulsion by the electric power of the lithium ion batteries 31 and 32.

  In addition, a passenger cabin 12 having a passenger seat 16 is provided at the front part of the electric propulsion ship 10 in the forward direction, and a power room 20 having various devices for propelling the electric propulsion ship 10 is provided at the rear part of the forward direction. Is provided. The passenger seat 16 is also made of aluminum, so that not only the weight can be reduced, but the passenger cabin 12 is less likely to burn, which is preferable from the viewpoint of safety. In the power chamber 20, a propulsion motor 36, two lithium ion batteries 31 and 32 constituting a battery unit, a propulsion motor control panel 33, a power distribution panel 34 for inboard power supply, and the like are arranged.

  The power room 20 and the travel cabin 12 are provided at a predetermined distance from each other. This is to ensure the safety of passengers in the travel cabin 12. In the present embodiment, the power chamber 20 is provided with a predetermined distance from the passenger cabin 12 via the partition wall 17. Even if an explosion occurs in the power room 20 for some reason, the travel room 12 has a distance between the power room 20 and the travel room 12 and has the partition wall 17. The impact of explosions on can be reduced. It is desirable that the partition wall 17 has a higher strength than the wall portion 21 of the hull 11 that forms the power chamber 20, for example.

  It is desirable to provide a weak body portion having a relatively low strength at an appropriate location on the wall portion 21 of the hull 11 forming the power chamber 20. In the present embodiment, a hatch 23 is formed on the upper wall portion of the hull 11 and this hatch is used as a weak body portion. The hatch 23 can be formed of a synthetic resin plate such as an acrylic plate. Should an explosion occur in the power chamber 20 for any reason, the hatch 23 is opened or blown away by the blast, and the pressure is released. Thereby, the influence of the explosion that reaches the travel cabin 12 can be suppressed. By forming the hatch 23 on the upper wall portion as in the present embodiment, pressure is released in the direction opposite to the bottom of the ship, so that it is possible to avoid water from entering due to a hole in the bottom of the ship due to the blast.

  On the side portion of the wall portion 21 of the hull 11 forming the power chamber 20, a ventilation duct 25 (three locations in the present embodiment) is provided as an air cooling ventilation portion for cooling the lithium ion batteries 31 and 32 constituting the battery portion. ). In addition, it is preferable that a ventilation fan is provided in at least one ventilation duct 25 to positively ventilate the power chamber 20 in addition to natural ventilation. By providing the ventilation duct 25 as described above, the air cooling function of the battery unit described above can be achieved, and in the event of an explosion, it functions as a relief of pressure, and further, combustible gas can be exhausted. It becomes.

  The screw 38 for propelling the electric propulsion passenger ship 10 is connected to a screw shaft 37 extending from the ship bottom at the center of the stern width to the water and rotates. The screw shaft 37 is rotationally driven by a propulsion motor 36 disposed in the power chamber 20. As the electric motor 36 for propulsion, for example, an AC motor of 1000 to several thousand rpm at 10 to several tens kw is used, and for example, it is set to be able to navigate at a speed of several knots or more.

  The propulsion motor control panel 33 controls the rotational drive of the propulsion motor 36 and is disposed near the front of the power chamber 20, and the onboard power distribution panel 34 is disposed near the propulsion motor control panel 33. ing.

  The lithium ion batteries 31 and 32 constituting the battery unit are power supplies that supply power to the propulsion motor 36. The power chamber 20 is positioned approximately at the center in the length direction, and is arranged on the left and right sides of the propulsion motor 36 with a balance between the left and right sides. In this embodiment, each lithium ion battery 31 and 32 is comprised by the battery assembly pack, and each can store the electric power of a large capacity | capacitance of several tens kw.

  Each of the two lithium ion batteries 31 and 32 is desirably provided at a predetermined height from the ship bottom. If the lithium ion batteries 31 and 32 have exploded in the power chamber 20 for some reason, if they are provided at a predetermined height in this way, the influence of the blast on the ship bottom can be reduced, It is possible to prevent holes from being formed. A plurality of lead batteries 35 are arranged near the rear of the power chamber 20 and connected to a power distribution board 34 for power supply to the ship, so that general lighting, ship electronic equipment, electric heat equipment, and other devices are generally used. Used as a power source.

  The lithium ion batteries 31 and 32 are configured to be charged from a land commercial power source via a power receiving seat provided in the electric propulsion passenger ship 10. This enables charging while the ship is anchored. In addition, the electric power of the lithium ion batteries 31 and 32 is supplied to the propulsion motor 36 made of an AC motor under the control of the propulsion motor control panel 33. By supplying the electric power via the inverter, the lithium ion batteries 31 and 32 are supplied. 32 DC power sources can be used as driving power sources for AC motors.

  In addition, since the above-described lithium ion batteries 31 and 32 have a predetermined weight, it is desirable that the power chamber 20 is originally arranged at substantially the center of the hull 11 for balance. However, in the present embodiment, as described above, the power chamber 20 including the lithium ion batteries 31 and 32 is provided at the rear of the hull as one of the countermeasures for the explosion. Therefore, the center of gravity is biased to the rear part of the hull 11, which may cause a reduction in speed. Therefore, a buoyancy body (not shown) is provided on the bottom of the hull 11 so that the buoyancy acting on the rear of the hull is relatively increased, and the propulsive force of the screw 38 functions without loss. preferable.

  Note that an emergency propulsion power unit 41 driven by fuel is preferably provided at the rearmost part of the hull 11. Since the emergency propulsion power unit 41 is not used in normal navigation, the screw portion is lifted from the surface of the water, but in the unlikely event that an accident occurs during navigation, it is shown in FIG. Thus, the part of the propeller screw propeller is submerged and driven.

  According to the present embodiment, the power chamber 20 in which the battery unit including the lithium ion batteries 31 and 32 is arranged is separated from the passenger cabin 12 and is made of an acrylic plate on the upper wall portion of the power chamber 20. A hatch 23 is provided. Therefore, even if an explosion occurs in the power chamber 20 due to some reason, the hatch 23 is preferentially opened or blown away, so that the influence of the explosion on the travel cabin 12 can be suppressed. The electric propulsion passenger ship 10 using the lithium ion batteries 31 and 32 as a drive source is suitable.

DESCRIPTION OF SYMBOLS 10 Electric propulsion passenger ship 11 Hull 12 Passenger cabin 17 Bulkhead 20 Power room 21 Wall part 23 Hatch 25 Ventilation duct 31, 32 Lithium ion battery 33 Propulsion motor control panel 36 Propulsion motor (AC motor)
38 Screw 41 Emergency propulsion power unit

Claims (7)

An electric propulsion passenger ship with a passenger cabin,
The power source is located in the power room that is separated from the passenger cabin and is located behind the passenger cabin, and the strength against the blast is relatively higher on the upper wall of the wall of the hull that forms the power cabin. Electric propulsion passenger ship, characterized by a low hatch.   The electric propulsion passenger ship according to claim 1, wherein the hull is made of aluminum.   The electric propulsion passenger ship according to claim 2, wherein the hatch is made of a synthetic resin plate.   The electric propulsion passenger ship according to any one of claims 1 to 3, wherein the power room is provided at a predetermined distance from the travel room via a partition wall between the power room and the travel room.   The electric propulsion passenger ship according to any one of claims 1 to 4, wherein the battery unit including the power source is provided at a position at a predetermined height from the ship bottom.   The electric propulsion passenger ship according to any one of claims 1 to 5, wherein an air-cooling ventilation unit for cooling a battery unit including a power source is provided at an appropriate position of a wall portion of a hull forming a power chamber.   The electric propulsion passenger ship according to any one of claims 1 to 6, wherein an emergency propulsion power unit driven by fuel is provided at a rear part of the hull.

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