JP2013133030A - Ship, and method for ensuring ship stability - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ship that prevents all of the same type of equipment installed on a ship from being disabled, and to provide a method for ensuring ship stability.SOLUTION: A ship includes: a plurality of compartments 11P, 12P, 11S and 12S of a hull 1; and a flow path 31. The plurality of compartments include: the compartment 11P in which equipment 21P is arranged; the compartment 11S in which equipment 21S of the same type as the equipment 21P is arranged; and the compartment 12S in which equipment of the same type as the equipment 21P is not arranged. The compartment 11P is arranged on either one of a port side 4 and a starboard side 5 of the hull 1. The compartment 11S and the compartment 12S are arranged on the another of the port side 4 and the starboard side 5. The flow path 31 connects between the compartment 11P and the compartment 12S so that water is movable therebetween.

Description

  The present invention relates to a technique for ensuring the stability of a ship.

  Generally, a ship is designed to have a stability that allows it to return to a normal position even if it is tilted left and right. If the ship is damaged and flooded, its stability will be affected. Measures are required to ensure stability in the event of ship damage. For example, when two sections arranged on both sides so as to be symmetrical with respect to the center plane of the hull are connected by a flow path, and there is a hole in the hull and one section is submerged, one section is A technique for ensuring stability by moving water to a compartment through a flow path is known.

  Patent Document 1 discloses a ship restoring power recovery device as an example of a technique for ensuring stability. Restoration power recovery device is a seawater introduction means that can be remotely opened to the bottom watertight deck on the void space at the bottom of the ship, the inundation detection device provided on the watertight deck, and the inundation detection device detected inundation A submergence indicator for indicating this and a watertight door operation unit. The seawater introduction means includes a seawater introduction hole opened near the shore side of the watertight deck, a watertight door that closes the lower surface of the seawater introduction hole, and a watertight door opening device that opens the watertight door. The watertight door operation unit outputs an operation signal for opening the watertight door to the watertight door opening device.

  On the other hand, when a plurality of similar devices are mounted on a hull, there are many examples in which the devices are mounted symmetrically with respect to the hull center plane. When multiple devices of the same type are distributed and mounted in the above two sections, if one section is submerged and water is moved from one section to the other section, all of the plurality of similar apparatuses are unusable. turn into.

Japanese Patent No. 4814120

  An object of the present invention is to provide a ship and a method for ensuring the stability of the ship, in which it is prevented that all of a plurality of similar devices mounted on the ship become unusable.

  The means for solving the problem will be described below using the numbers used in the (DETAILED DESCRIPTION). These numbers are added to clarify the correspondence between the description of (Claims) and (Mode for Carrying Out the Invention). However, these numbers should not be used to interpret the technical scope of the invention described in (Claims).

  A ship according to one aspect of the present invention includes a plurality of sections (11P to 14P, 11S to 14S) of a hull (1) and flow paths (31 to 34). The plurality of sections include a first section (11P, 13P) in which the first devices (21P, 23P) are disposed, and a second section in which the same second device (21S, 23S) as the first device is disposed. (11S, 13S) and a third section (12S, 14S) in which a device of the same type as the first device is not disposed. The first section is disposed on one of the port side (4) and starboard (5) of the hull. The second section and the third section are arranged on the other side of the port and the starboard. The flow path connects the first section and the third section so that water can move.

  The first section is disposed on the first side with respect to the center of gravity (G) of the hull. The third section is disposed on the second side with respect to the position of the center of gravity. The first side is one of the bow (2) side and the stern (3) side. The second side is the other of the bow side and the stern side.

  The distance (L1) between the first section and the hull center plane (C) is equal to the distance (L2) between the third section and the hull center plane.

  The first device and the second device are a device for moving a fin stabilizer, a generator, or a waste disposal device.

  According to another aspect of the present invention, there is provided a method for ensuring the stability of a ship when the hull (1) is damaged and the first section (11P, 13P) in which the first devices (21P, 23P) are disposed is submerged. Without moving water from one section to the second section (11S, 13S) where the second device (21S, 23S) of the same type as the first device is arranged, the same kind of device as the first device from the first section The step of moving the water to the third section (12S, 14S) where is not arranged. The first section is disposed on one of the port side (4) and starboard (5) of the hull. The second section and the third section are arranged on the other side of the port and the starboard.

  According to the present invention, it is an object of the present invention to provide a ship and a ship stability ensuring method that can prevent all of the same type of devices mounted on the ship from becoming unusable.

FIG. 1 is a schematic plan view of a ship according to the first embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of a ship according to the second embodiment of the present invention.

  With reference to an accompanying drawing, a form for carrying out a ship and a restoration nature securing method of a ship by the present invention is explained below.

(First embodiment)
With reference to FIG. 1, the ship which concerns on the 1st Embodiment of this invention is provided with the hull 1, the propeller (not shown) which generate | occur | produces a thrust, and a rudder (not shown). The hull 1 includes sections 11P, 11S, 12P and 12S, and flow paths 31 and 32. The compartments 11P, 11S, 12P and 12S and the flow paths 31 and 32 are arranged inside the outer plate of the hull 1. The partitions 11P, 11S, 12P, and 12S are arranged on the same deck. The sections 11P and 12P are arranged on the port 4 of the hull 1. The sections 11S and 12S are arranged on the starboard 5 of the hull 1. The sections 11P and 11S are arranged symmetrically with respect to the hull center plane C. The sections 12P and 12S are arranged symmetrically with respect to the hull center plane C. The sections 12P and 12S are disposed closer to the bow 2 than the sections 11P and 11S. The flow path 31 connects the partition 11P and the partition 12S so that water can move. The flow path 32 connects the section 11S and the section 12P so that water can move. The flow paths 31 and 32 are pipes, for example.

  Devices 21P, 21S, 22P and 22S are arranged in the sections 11P, 11S, 12P and 12S, respectively. The device 21P is the same type of device as the device 21S. The device 22P is the same type of device as the device 22S. The devices 21P and 21S are different devices from the devices 22P and 22S. Devices of the same type as the devices 21P and 21S are not arranged in the sections 12P and 12S. Devices of the same type as the devices 22P and 22S are not arranged in the sections 11P and 11S.

  When the hull 1 is damaged and the section 11P is submerged, the stability of the hull 1 is secured by moving water from the section 11P to the section 12S via the flow path 31. When the section 11P in which the device 21P is disposed is submerged, the water is not moved to the section 11S in which the same type of device 21S as the device 21P is moved, but the water is moved to the section 12S in which the same type of device as the device 21P is not disposed. Thus, it is possible to prevent all of the devices 21P and 21S of the same type from being unusable.

  When the hull 1 is damaged and the section 11S is submerged, the stability of the hull 1 is secured by moving water from the section 11S to the section 12P via the flow path 32. When the hull 1 is damaged and the section 12P is submerged, the stability of the hull 1 is secured by moving water from the section 12P to the section 11S via the flow path 32. When the hull 1 is damaged and the section 12S is inundated, the stability of the hull 1 is secured by moving water from the section 12S to the section 11P via the flow path 31.

  It is preferable that the distance L1 between the sections 11P and 11S and the hull center plane C is equal to the distance L2 between the sections 12P and 12S and the hull center plane C from the viewpoint of ensuring stability.

  In the present embodiment, the devices 21P, 21S, 22P and 22S are repaired when the device is used for navigating the ship, the device for supplying power in the ship, the device for ensuring sanitation in the ship, or the water. This is particularly effective when the device is expensive or long-term equipment. The devices 21P and 21S are, for example, devices that move the fin stabilizer, a generator, or a waste disposal device. The devices 22P and 22S are, for example, devices that move the fin stabilizer, a generator, or a waste disposal device, and are devices different from the devices 21P and 21S.

  In consideration of the stability of the trim angle, the sections 11P and 11S are arranged on the stern 3 side with respect to the center of gravity position G of the hull 1, and the sections 12P and 12S are arranged on the bow 2 side with respect to the center of gravity position G. Is preferred.

(Second Embodiment)
Referring to FIG. 2, a ship according to a second embodiment of the present invention includes a hull 1, a propeller (not shown) that generates a propulsive force, and a rudder (not shown). The hull 1 includes sections 13P, 13S, 14P, and 14S, and flow paths 33 and 34. The compartments 13P, 13S, 14P and 14S and the flow paths 33 and 34 are arranged inside the outer plate of the hull 1. The sections 13P and 13S are arranged on the upper deck, and the sections 14P and 14S are arranged on the lower deck. The sections 13P and 14P are arranged on the port 4 of the hull 1. The sections 13S and 14S are arranged on the starboard 5 of the hull 1. The sections 13P and 13S are arranged symmetrically with respect to the hull center plane C. The sections 14P and 14S are arranged symmetrically with respect to the hull center plane C. The section 14P is disposed directly below the section 13P. The section 14S is disposed directly below the section 13S. The flow path 33 connects the partition 13P and the partition 14S so that water can move. The flow path 34 connects the partition 13S and the partition 14P so that water can move. The flow paths 33 and 34 are pipes, for example.

  Devices 23P, 23S, 24P and 24S are arranged in the sections 13P, 13S, 13P and 13S, respectively. The device 23P is the same type of device as the device 23S. The device 24P is the same type of device as the device 24S. The devices 23P and 23S are different devices from the devices 24P and 24S. Devices of the same type as the devices 23P and 23S are not arranged in the sections 14P and 14S. Devices of the same type as the devices 24P and 24S are not arranged in the sections 13P and 13S.

  When the hull 1 is damaged and the section 13P is flooded, the stability of the hull 1 is secured by moving water from the section 13P to the section 14S via the flow path 33. Here, when a certain amount of water moves from the section 13P to the section 14S, it is preferable to close a valve (not shown) provided in the flow path 33 so that the water does not move further. When the section 13P in which the device 23P is disposed is submerged, the water is not moved to the section 13S in which the same type of device 23S as the device 23P is moved, but the water is moved to the section 14S in which the same type of device as the device 23P is not disposed. Thus, it is possible to prevent all the devices 23P and 23S of the same type from being unusable.

  In addition, when the hull 1 is damaged and the section 13S is submerged, the stability of the hull 1 is secured by moving water from the section 13S to the section 14P via the flow path 34. Here, when a certain amount of water moves from the section 13S to the section 14P, it is preferable to close a valve (not shown) provided in the flow path 34 so that the water does not move further.

  In the present embodiment, the devices 23P and 23S are expensive for the navigation of the ship, the device for supplying power in the ship, the device for ensuring sanitation in the ship, or repaired when immersed in water. This is particularly effective when the device is for a long time. The devices 23P and 23S are, for example, a device that moves the fin stabilizer, a generator, or a waste disposal device.

  As mentioned above, although the ship and ship restoration property ensuring method by this invention were demonstrated with reference to embodiment, the ship and ship restoration property ensuring method by this invention are not limited to the said embodiment. It is possible to add a change to the said embodiment or to combine the said embodiment. For example, the sections 11P and 11S may be arranged on a first deck, and the sections 12P and 12S may be arranged on a second deck different from the first deck.

DESCRIPTION OF SYMBOLS 1 ... Hull 2 ... Bow 3 ... Stern 4 ... Port 5 ... Starboard 11P-14P, 11S-14S ... Section 21P-24P, 21S-24S ... Equipment 31-34 ... Channel G ... Center of gravity C ... Hull center plane L1, L2 ... Distance

Claims (7)

Multiple sections of the hull,
A flow path,
The plurality of compartments are:
A first section in which the first device is disposed;
A second section in which a second device of the same type as the first device is disposed;
A third section in which a device of the same type as the first device is not disposed,
The first section is disposed on one of the port side and the starboard side of the hull,
The second section and the third section are arranged on the other side of the port and starboard,
The flow path connects the first section and the third section so that water can move. The ship of claim 1,
The first section is disposed on the first side with respect to the center of gravity position of the hull,
The third section is disposed on the second side with respect to the position of the center of gravity,
The first side is one of the bow side and the stern side;
The second side is the other of the bow side and the stern side. The ship according to claim 1 or 2,
The distance between the first section and the hull center plane is equal to the distance between the third section and the hull center plane. A ship according to any one of claims 1 to 3,
The first device and the second device are devices that move a fin stabilizer. A ship according to any one of claims 1 to 3,
The first device and the second device are generators. A ship according to any one of claims 1 to 3,
The first device and the second device are waste disposal devices. When the hull is damaged and the first section where the first device is disposed is submerged, the water does not move from the first section to the second section where the second device of the same type as the first device is disposed, Moving water from the first section to a third section where the same type of equipment as the first device is not disposed;
The first section is disposed on one of the port side and the starboard side of the hull,
The second section and the third section are arranged on the other side of the port side and the starboard side.

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