JP2001001981A - Hull structure of ship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the number of loaded vehicles for the same ship type size. SOLUTION: A hull structure of this ship adopts a constitution having multiple compartments 2 formed along all over a hull 1 on both sides in a crosswise direction of the hull to form a space extending in a lengthwise direction of the hull almost at the center in a crosswise direction, multiple electric generators 17 which are distributed in the compartments 2 on the sides of the hull and generates electric power, and a propulsion motor 19 generating a propulsion force from electric power generated from the electric generator 17 on a stern side of the hull 1. An electric propulsion structure eliminating a shaft room and a propulsion shaft and distributed generators 17 secure a wide area extending in the lengthwise direction of the hull at the center of the crosswise direction on a story having the compartments (story with the generators) to increase the number of vehicles to be loaded.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hull structure of a ship such as a roll-on / roll-off passenger ship.

[0002]

2. Description of the Related Art Roll-on / roll-off passenger ships represented by ferries are shown in FIGS. 3 (a) to 3 (c) and FIG.
As shown in (a) and (b), a plurality of compartments b are formed on the bottom side of a hull a, and a track space c for accommodating a truck is formed in an upper floor space.
Here, m is a ramp for moving the vehicle between the upper and lower floor spaces.

[0003] Usually, roll-on and roll-off passenger ships are
Equipped with propellers and water jets, they are propelled by the propellers and water jets.

[0004] Roll-on / roll-off passenger ships are required to drive the propellers and water jets as shown in FIG.
As shown in FIGS. 4 (a) and 4 (b) and FIGS. 4 (a) and 4 (b), an axle chamber d, an engine room f, and an auxiliary machine room g are formed at the rear of the hull a. An engine h such as an engine is installed, an auxiliary machine i is installed in an auxiliary machine room g, and a propeller shaft g (propulsion shaft) extending from the engine h is passed through the shaft chamber d and connected to a propeller k. In addition, n shows a steering machine room.

The propulsion structure in which the engine h hung the propeller k requires a large occupied space for both the engine h and the auxiliary equipment i.

For this reason, in a roll-on / roll-off passenger ship, the engine room f and the auxiliary machine room g are generally formed so as to extend over both sides of the hull a substantially at the center in the full length direction of the hull a, and are secured widely. The engine h is housed in the engine room f and the auxiliary machine i is housed in the auxiliary machine room g.

[0007]

However, the ship employs a structure in which a plurality of compartments b are formed below the main deck in order to ensure stability in the event of damage, so that the engine room On the floor where f and the auxiliary equipment room g are located, there is a lot of space occupied by the engine room f and the auxiliary equipment room g, and it is difficult to secure a space for loading vehicles on the same floor. In FIG. 3, the space p is a passenger car space p. However, the space p cannot be increased due to the restrictions of the engine room f and the accessory room g. Moreover,
Since the space p cannot have a long section due to the layout of each room, it is not suitable for loading a heavy vehicle. In particular, it is desired that the roll-on / roll-off passenger ship has a large number of vehicles loaded. However, if the number of loaded vehicles is large, the hull form becomes large and the cost burden increases.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a hull structure of a ship capable of increasing the number of vehicles to be loaded in the same hull form.

[0009]

According to a first aspect of the present invention, there is provided a hull structure for a hull, wherein a space extending on the both sides in the width direction of the hull is formed at the center in the width direction so as to extend the full length of the hull. A plurality of compartments formed along the entire length, and a plurality of power generation devices for generating electric power, which are distributed and installed in these hull side compartments, and the power generation device attached to the stern side of the hull With a configuration having a propulsion motor that generates propulsion by electric power generated in the above, an electric propulsion structure that does not require a shaft chamber and a propulsion shaft, and a distributed arrangement of power generation equipment, a floor where a compartment is located ( At the center in the width direction of the floor where the power generation equipment is located), a wide section that extends long in the full length direction of the hull is secured.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on one embodiment shown in FIGS.

1 and 2 show a ship to which the present invention is applied, for example, a roll-on roll-off passenger ship. 1A shows the structure of the passenger ship on the side of the ship, FIG. 1B shows the structure of the center of the ship, and FIG.
2 shows a plane cross section along the line AA in FIG.
(A) shows a plane cross section along line BB in FIG. 1 (b),
FIG. 2B shows a plane cross section along the line CC of FIG. 1B.

In FIG. 1, reference numeral 1 denotes the hull of the passenger ship. A plurality of compartments 2 are formed on the left and right sides of the bottom of the hull 1 below the main deck so as to open the center in the width direction, that is, separate from each other, for example, left and right. Compartment 2
Is a partition formed by combining a plurality of horizontal bulkheads 3 arranged in each part of the hull 1 in the horizontal direction and two vertical partition walls 4 arranged vertically in the center of the hull 1. It is formed with a structure. Thus, a plurality of left and right compartments 2 are continuously arranged along the entire length of the hull. And
An open space extending over substantially the entire length is formed in a portion sandwiched between the pair of longitudinal through bulkheads 4 except for narrow portions at the bow end and the stern end. The upper side of this open space is covered with a deck 5 which forms the upper wall of the partition 2. A deck 6 is provided between the deck 5 and the bottom of the ship, and divides the open space vertically. Further, above the deck 5, a deck 7 and a deck 8 are provided at predetermined intervals, respectively, and a region above the deck 5 is vertically divided. A passenger car space 10 for loading passenger cars is formed from the deck sandwiched by the vertical bulkheads 4 on the bottom of the ship, and trucks are loaded from a wide deck extending the entire length of the hull sandwiched by the vertical bulkheads 4 on the upper floor. A track space 11 for loading trucks from the decks on the upper floor and the next upper floor is formed. The deck on the top floor has a cabin. However, reference numeral 14 denotes a flip-up type or seesaw type lamp for moving the vehicle between decks on the upper and lower floors.

Of the partition walls 2, for example, two pairs of left and right compartments 2 arranged at the center of the entire length are a first generator room 15 and a second generator room 16, respectively. Each of the generator rooms 15 and 16 is provided with a generator, for example, an engine-driven generator 17 (generator driven by an engine, hereinafter simply referred to as a generator).
Are installed (four). Thus, a plurality of generators 17 are dispersedly arranged in the compartment 2 on the side of the hull. Each of the generators 17 generates electric power necessary for the navigation of the ship.

At the stern of the hull 1, a motor room 18 formed of a compartment is arranged. In this motor room 18,
Propulsion motor 1 operated by electric power generated by each generator 17
9 are installed. A propulsion member, for example, a propeller 20 is attached to an output shaft of the propulsion motor 19, and the propeller 20 is rotated by the propulsion motor 19. That is, propulsion is generated from the electric power generated by each generator 17.

In the roll-on / roll-off passenger ship configured as described above, the number of vehicles loaded in the same hull size can be increased as compared with a passenger ship that drives a propeller or a water jet with an engine output.

That is, unlike a propulsion structure in which a propeller or a water jet is driven by an engine output, an electric propulsion passenger ship does not require a shaft chamber and a propulsion force, and the propulsion motor 19 can be separated from a power generation facility. There are few restrictions on installation.

Therefore, in order to take advantage of this feature, not only is the power generation facility composed of a plurality of generators 9 but also the compartments 2 which are continuously arranged in the full length direction so as to open the center at the side of the ship. The generators 9 were dispersed in the compartment 2.

As a result, the engine area is accommodated in the side of the ship, and the main engine area, which conventionally occupies a large area near the center of the hull 1, is eliminated. Space is secured.

That is, this space becomes the passenger car space 10 or the truck space 11 as it is, and is used as a vehicle compartment for loading a truck or a passenger car.
The number of vehicles to be loaded can be greatly increased while having the same hull size.

Of course, if the number of vehicles loaded on the conventional roll-on / roll-off passenger ship is the same, the hull form can be made smaller than that of the passenger ship, and there is also an advantage that the cost can be reduced.

In the embodiment, a propeller is used, but a ship using a water jet may be used.

[0022]

As described above, the hull structure of a ship according to the present invention uses an electric propulsion structure that does not require a shaft chamber and a propulsion shaft, and a compartment structure that is formed so as to open the center toward the ship. As a result, since the generators forming the electric propulsion structure are distributed in the compartments, a wide section extending in the full length direction of the hull is provided at the center in the width direction of the floor where the compartments are located (the floor where the generators are located). It can be secured and the same section can be used for loading various vehicles.

Therefore, the number of vehicles loaded in the same hull size can be greatly increased. In addition, if the number of vehicles loaded is the same as the conventional one, the hull form can be reduced, and the cost can be reduced.

[Brief description of the drawings]

FIG. 1A is a cross-sectional view of a ship side showing a hull structure of a ship according to an embodiment of the present invention. FIG. 2B is a cross-sectional view of the center of the ship. (C) is the same as A in FIG. 1 (b).
FIG. 2 is a cross-sectional plan view of the deck floor along the line A.

FIG. 2A is a cross-sectional plan view of a deck floor along line BB in FIG. 1B. (B) is a plane sectional view of the deck floor along CC in FIG. 1 (b).

FIG. 3A is a cross-sectional view of a ship side showing a hull structure of a conventional roll-on / roll-off passenger ship. FIG. 2B is a cross-sectional view of the center of the ship. (C) is the same as FIG.
The plane sectional view of the deck floor which follows the AA line in the inside.

FIG. 4A is a plan sectional view of the deck floor along the line BB in FIG. 3B. (B) is a plane sectional view of the deck floor along CC in FIG. 3 (b).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Hull 2 ... Separation room 3 ... Horizontal partition wall 4 ... Vertical partition wall 10 ... Passenger car space 11, 12 ... Truck space 15 ... 1st generator room 16 ... 2nd generator room 17 ... Generator 18 ... Motor room 19 ... propulsion motor.

Claims (1)

[Claims] 1. A plurality of compartments formed along the entire length of a hull on both sides in the width direction of the hull so as to form a space extending the entire length of the hull at the center in the width direction; And a plurality of power generating devices for generating electric power, and a propulsion motor attached to the stern side of the hull and generating a propulsion force by the power generated by the power generating devices. Hull structure of the ship.