JPH09226676A - Independent tank protecting partition wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce damage to vertically communicating partition walls in wide sections when side collision happens to laterally residing partition walls in a hull, on which a cargo handling area is partitioned with several laterally residing partition walls where independent tanks are set up, by providing the vertically communicating partition walls at given positions in sections adjacent to either the front or the rear of the laterally residing partition walls. SOLUTION: A cargo handling area 2 in a hull 1 is partitioned with several laterally residing partition walls 3 to form independent tanks 4. The independent tank 4 in a cargo handling area 21 is formed at the maximum width, as a void space in a section 7 at both starboard and port or the minimum width enough to do constructing work for a ballast tank is left, and divided into both starboard and port tanks. The section 7 is encircled by the laterally residing partition wall 3, an outer plate 6 and a vertically communicating partition wall 5 at both starboard and port sides of the independent tank 4. On the other hand, the independent tanks 4 in the cargo handling areas 22, 23, which have the front parts in the longitudinal direction with a width to be about 3/5 of a ship width and the rear parts with the maximum width as the minimum width is left, are divided into both starboard and port tanks. A section 7' which has a width to be about 1/5 of the ship width is encircled by the laterally residing partition wall 3, the outer plate 6 and a vertically communicating partition wall 5'.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a partition having an independent tank provided in a chemical tanker or a gas carrier, and relates to a double partition.

[0002]

2. Description of the Related Art Conventionally, according to the invention of this type, as shown in FIG. 3, a cargo handling area 32 of a hull 31 is divided by several horizontal partitions 33, and an independent tank 34 is installed in the division.
The longitudinal bulkheads 35 extend along the outer plate 36 at about 1 / the width of the hull 31.
It was provided between the cargo handling areas 32 at 10. Horizontal partition 3
3, the partition 37 surrounded by the outer plate 36 and the vertical partition 35 is a void space or a ballast tank, and is partitioned by the partition partition 38 to have an appropriate capacity.

[0003]

As described in the prior art, by providing a longitudinal bulkhead over the entire cargo handling area at about 1/10 of the width of the hull, a small accident or a horizontal bulkhead is provided. Although it can survive a ship-side collision accident, when a ship-side collision accident occurs in a horizontal bulkhead, the amount of inundation increases and the ship does not survive because of non-target inundation. I had a problem.

The present invention has been made in view of the above problems of the prior art, and an object thereof is to change the position of the vertical partition wall in the horizontal partition wall.
It seeks to vary the width of the compartments to provide an arrangement where the horizontal bulkheads will not damage the two compartments following a ship side impact.

[0005]

In order to achieve the above-mentioned object, the present invention has a longitudinal partition wall which is adjacent to either the front or rear of the horizontal partition wall between the independent tanks and has a length about 1/3 of the independent tank. In addition, the width of the ship is about 1/5 of the ship's width.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention divides a cargo handling area into a plurality of horizontal partition walls, and in a hull in which independent tanks are installed, a longitudinal partition wall of a partition adjacent to either the front or rear of the horizontal partition walls between independent tanks. Is provided with a length of about 1/3 of the independent tank and a width of about 1/5 of the ship width from the outer plate, and the other section keeps the minimum width for construction work, It is surrounded by lateral bulkheads, outer plates and longitudinal bulkheads.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments will be described with reference to the drawings.
As shown in FIGS. 1 and 2, the cargo handling area 2 of the hull 1 is divided by several horizontal partition walls 3 and an independent tank 4 is installed.

The independent tank 4 in the first loading / unloading area 21 is provided with the maximum width, leaving a minimum width (about 900 mm) that allows the construction work of the void space or the ballast tank in the section 7 on both sides to be divided into both sides. Has been. The compartment 7 is surrounded by the lateral partition 3, the outer plate 6, and the longitudinal partition 5 on both sides of the independent tank 4, and is divided into two compartments, the front and the rear.

The second cargo handling area 22 and the third cargo handling area 23
The independent tank 4 has a width of about 3/5 of the ship width at the front in the longitudinal direction, and the minimum space (about 900 m) that can be used for the void space of the port 7 on the port side or the ballast tank at the rear.
m) is left and it is provided with the maximum width and is divided into both port tanks. Compartment 7 has horizontal partition walls 3 on both sides of independent tank 4,
Surrounded by the outer plate 6 and the longitudinal bulkheads 5 and located at the rear, the section 7'has a width of about 1/5 of the ship width, and the horizontal bulkheads 3, the outer plates 6 and the longitudinal bulkheads 5'are arranged in the compartment 7 '. It is surrounded and located in front.

[0010]

Since the present invention is configured as described above, the following effects can be obtained. The present invention changes the position of the longitudinal bulkhead of the compartment adjacent to the front or rear of the horizontal bulkhead between the independent tanks, and changes the width of the compartment, so that when the horizontal bulkhead receives a side collision, Although the bulkhead is damaged, the vertical bulkhead of a large compartment is less likely to be damaged, does not become a two-part flood and remains, and the safety of the ship is further maintained.

[Brief description of drawings]

FIG. 1 is a plan view schematically showing a tank split according to the present invention.

FIG. 2 is a schematic side view of the tank split according to the present invention.

FIG. 3 is a schematic plan view of a conventional tank split.

[Explanation of symbols]

 1 Hull 2 Loading area 3 Horizontal bulkhead 4 Independent tank 5 Longitudinal bulkhead 5'longitudinal bulkhead 6 Outer plate 7 Section 7'section 21 First cargo handling area 22 Second cargo handling area 23 Third cargo handling area

Claims (1)

[Claims] 1. In a hull in which a cargo handling area is divided by a plurality of horizontal bulkheads and independent tanks are installed, a vertical bulkhead of a partition adjacent to either the front or rear of the horizontal bulkheads between the independent tanks is separated by about 1 of the independent tanks. / 3 length and about 1 ship width from the outer plate
The width of / 5 is provided separately, and the other section is left with a minimum width that allows construction work, and is surrounded by horizontal bulkheads, outer plates and vertical bulkheads on both sides of the independent tank. Protective partition.