JP2008239097A - Liquid carrying vessel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid carrying vessel capable of dispensing with piping. <P>SOLUTION: In the liquid carrying vessel, a plurality of cargo oil tanks are provided in the vessel length direction, and piping for cargo unloading and for loading is provided along the cargo oil tanks. One or a plurality of chine type trunks 8a-8c, 18a-18c for cargo unloading and loading using bottom parts 2 of the cargo oil tanks or an exposed part upper deck 20 and a pair of adjacent longitudinal frames 9 are provided on the lower face of the bottom parts 5 of the cargo oil tanks and/or the lower face of the exposed part upper deck 20. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a liquid carrier that carries crude oil, kerosene, liquid chemicals, and the like.

  As the liquid carrier ship, for example, an oil tank ship can be cited, but in the conventional oil tank ship, the piping device for unloading crude oil and the piping device for loading are all configured by piping. That is, as shown in FIG. 5, the conventional oil tanker 100 has the pipes 103 arranged on the exposed part upper deck 101 and in the cargo oil tank 102. These pipes 103 are shown in FIG. 6. In addition, it was installed on a gate-shaped cradle or horse 104 and fixed on the cradle or horse 104 by a metal band 105. Furthermore, the pipes 103 are connected to each other through a joint (not shown) such as a flange. In the figure, reference numeral 106 denotes a tank bottom.

  Since it is difficult to install the pipes at the same time as the production of the tank structure, it is necessary to separately perform piping work. In addition, conventional piping work requires the ordering, delivery, and management of a large number of devices and parts such as piping, cradle, horse, band, bolt / nut, and packing. There was a difficult point that it was difficult to work. In the conventional piping system, sludge may accumulate on a cradle or a horse when the cargo oil tank is washed.

  On the other hand, in response to the revision of the Marine Pollution Convention (MARPOL), a tunnel is installed in the longitudinal direction of the oil tanker (oil tanker) on the inner peripheral surface of the inner shell of the double ship bottom, and a coin oil pipe (pipe) is installed in this tunnel. An oil tanker with a double hull structure is proposed (see, for example, Patent Document 1).

According to this patent document 1, it may be possible to perform maintenance of a freight oil pipe (pipe) in a dry environment, but the freight oil pipe (pipe) is installed on a gate-shaped cradle or horse and is used with a band. In the case of fixing, there is a problem that procurement of various parts such as piping, cradle, horse, band, bolt / nut, packing, and installation work of a coin oil pipe (piping) become complicated.
JP-A-8-113189

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a liquid carrier that realizes pipe-less.

  The liquid carrier according to the first aspect of the present invention is the liquid carrier provided with a plurality of cargo oil tanks in the direction of the length of the ship and provided with piping for lifting and loading along the cargo oil tank. A rectangular trunk for lifting and loading using the bottom of the cargo oil tank or the upper deck of the exposed portion and a pair of adjacent longitudinal ribs on the lower surface of the bottom of the tank and / or the exposed portion of the upper deck. One or a plurality are provided.

  According to a second aspect of the present invention, there is provided a liquid carrier ship comprising: a plurality of cargo oil tanks in a direction of a ship length; and a cargo carrier provided with piping for lifting and loading along the cargo oil tank. One or a plurality of rectangular trunks for loading and loading using the bottom of the cargo oil tank or the exposed upper deck are provided on the lower surface of the bottom of the tank and / or the exposed upper deck. To do.

  A liquid carrier according to a third aspect of the present invention is the liquid carrier according to the first aspect, wherein the rectangular trunk is connected to the bottom of the cargo oil tank or the upper deck of the exposed portion, and the lower surface of the bottom of the cargo oil tank and / or the lower surface of the exposed upper deck. And is formed by two longitudinal ribs adjacent to each other and a bottom plate added between the two longitudinal ribs.

  According to a fourth aspect of the present invention, there is provided the liquid carrier ship according to the first, second, or third aspect, wherein a suction pipe is provided at the tip of a rectangular trunk provided on the bottom lower surface of the cargo oil tank.

  According to a fifth aspect of the present invention, the liquid carrier according to the first, second, or third aspect is characterized in that a rectangular trunk provided on the lower surface of the upper deck of the exposed portion is communicated with the exposed portion traversing piping through the connecting pipe. And

  According to a sixth aspect of the present invention, there is provided a liquid carrier ship according to the first, second, or third aspect, wherein the square trunk provided on the bottom lower surface of the cargo oil tank and the square trunk provided on the lower surface of the exposed upper deck are pump rooms. It is characterized by communicating through an internal pipe.

  The invention according to claim 1 is a liquid carrier ship provided with a plurality of cargo oil tanks in the direction of the length of the ship and provided with piping for lifting and loading along the cargo oil tank, and a bottom lower surface of the cargo oil tank. And / or one or more rectangular trunks for lifting and loading using the bottom of the cargo oil tank or the upper deck of the exposed section and a pair of adjacent longitudinal ribs on the lower surface of the exposed section upper deck. Since it is provided, it is possible to manufacture the square trunk integrally with the longitudinal rib in the ship's direction in the double bottom or the lower surface of the exposed upper deck.

  In addition, by adopting the above-mentioned rectangular trunk, the liquid transfer line is completed at the same time as the cargo oil tank is completed, and the piping fitting process can be shortened. Furthermore, by adopting the above-mentioned square trunk, the number of parts such as cradle, horse, band, bolt / nut, packing, etc. is reduced compared to the conventional piping system, making it easy to order, deliver and manage these parts. become.

  In addition, when cleaning the cargo oil tank, since the piping is conventionally mounted on the cradle and horse, sludge may not accumulate and flow in the corners of fittings such as the cradle and horse. However, the adoption of the above-mentioned square trunk reduces the fittings such as cradle and horse at the upper part of the double bottom, and improves the flow of sludge.

  The invention according to claim 2 is a liquid carrier ship provided with a plurality of cargo oil tanks in the direction of the length of the ship, and provided with piping for lifting and loading along the cargo oil tank. And / or one or more rectangular trunks for loading and loading using the bottom of the cargo oil tank or the upper deck of the exposed section are provided on the lower surface of the exposed section upper deck. The same effect as the invention can be obtained.

  The invention according to claim 3 is the invention according to claim 1, wherein the square trunk is provided on the bottom of the cargo oil tank or the upper deck of the exposed portion, the lower surface of the bottom of the cargo oil tank and / or the lower surface of the exposed portion of the upper deck, In addition, since it is formed by two longitudinal ribs adjacent to each other and a bottom plate added between the two longitudinal ribs, the cargo oil tank can be completed simply by adding a bottom plate between two adjacent longitudinal ribs. At the same time, the liquid transfer line is completed, and the piping fitting process can be shortened.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this embodiment, an oil tanker is taken as an example of the liquid carrier.

  As shown in FIG. 1, this oil tanker ship 1 is provided with a plurality (for example, four) of cargo oil tanks 2 in the direction of the captain, and with a pump room 3 behind the rearmost cargo oil tank 2. Moreover, this oil tank ship 1 has a double hull structure. A ballast tank 7 is formed between the ship bottom skin 4 and the bottom 5 of the cargo oil tank 2 and between the ship bottom skin 4 and the bottom 6 of the pump room 3. And the crude oil L is accommodated in the cargo oil tank 2, respectively.

  Further, as shown in FIGS. 1 and 2, the oil tanker 1 is used for a plurality of (for example, three) lifted and loaded cargos having a rectangular cross section formed at the bottom of the bottom 5 of the cargo oil tank 2. Square trunks 8a to 8c are provided. For example, as shown in FIG. 3, the rectangular trunk 8 b in the ballast tank 7 is provided on the bottom 5 of the cargo oil tank and on the bottom surface of the bottom 5 of the cargo oil tank, and two L-shaped vertical portions adjacent to each other. The ribs 9 and 9 and a flat bottom plate 10 extended between the two longitudinal ribs 9 and 9 are formed. Further, the rectangular trunks 8a and 8c are formed in the same manner as the rectangular trunk 8b.

  As shown in FIG. 4, the square trunks 8a to 8c are provided with a suction pipe 11 at the tip thereof. The suction pipe 11 is made up of a straight pipe 13 having an open / close valve 12, a bending pipe 14 provided at the tip of the straight pipe 13, and a bell mouth 15 provided at the tip of the bending pipe 14.

  The suction pipe 11 is provided in an oil sump 16 provided at the lower part of the bottom 5 of the cargo oil tank. This oil sump 16 is formed in a bowl shape, and its upper opening 17 opens at the bottom 5 of the cargo oil tank.

  By the way, as shown in FIG. 2, the suction pipe 11 attached to the tip of the square trunk 8a is NO. 2 cargo oil tank 2b. The suction pipe 11 attached to the tip of the square trunk 8b is NO. 1 cargo oil tank 2a (see FIG. 1). Further, the suction pipe 11 attached to the tip of the rectangular trunk 8c is NO. 3 for the cargo oil tank 2c. Note that NO. Only a suction pipe is provided for the four cargo oil tanks 2d.

  Further, as shown in FIG. 2, the oil tanker 1 includes a plurality of (for example, four) squares for lifting and loading at the lower part of the exposed upper deck 20 corresponding to the upper parts of the cargo oil tanks 2b to 2d. Trunks 18a to 18d are provided.

  For example, the rectangular trunk 18a in the cargo oil tanks 2b to 2d includes an exposed portion upper deck 20, two lower longitudinal ribs 9 and 9 provided below the exposed portion upper deck 20, and adjacent to each other. It is formed by a bottom plate 10 extended between two longitudinal ribs 9 and 9. Further, the rectangular trunks 18b to 18d are formed in the same manner as the rectangular trunk 18a. The rectangular trunks 18a to 18d in the cargo oil tanks 2b to 2d communicate with the exposed portion traversing pipe 21 via connection pipes (not shown).

  Further, the rectangular trunk 8a in the ballast tank 7 and the rectangular trunk 18a in the cargo oil tanks 2b to 2d are communicated with each other by a pipe 23a provided in the pump room 6, as shown in FIG.

  Further, the rectangular trunk 8b and the rectangular trunk 18b are communicated with each other by a pipe 23b provided in the pump room 6. Further, the rectangular trunk 8 c and the rectangular trunk 18 c are communicated with each other by a pipe 23 c provided in the pump room 6.

  Furthermore, NO. The suction pipe 11 corresponding to the No. 4 cargo oil tank 2d and the trunk 18d are communicated with each other by a pipe 23d provided in the pump room 6. These pipes 23a to 23d are each provided with a pump 24 in the middle thereof.

  For example, NO. When the pump 24 corresponding to the cargo oil tank 2c of No. 3 is driven, NO. 3 is supplied to the rectangular trunk 18c in the cargo oil tanks 2b to 2d through the rectangular trunk 8c in the ballast tank 7 and the pipe 23c in the pump room 6, and further, the crude oil L in the cargo oil tank 2c is supplied to the rectangular trunk 18c. The cargo is unloaded from the trunk 18c through the transverse pipe 21. In addition, NO. The cargo oil tanks 2a, 2b, 2d other than 3 are also unloaded.

  In the above description, the oil tank ship is taken as an example of the liquid carrier ship, but the present invention is not limited to this, and the liquid carrier ship can be applied to a ship that carries liquids other than crude oil such as kerosene and chemicals. The square trunk is not limited to a plurality, and may be, for example, one (one set).

  Furthermore, the case where the square trunk is provided on both the bottom lower surface of the cargo oil tank and the lower surface of the exposed upper deck has been described. However, the present invention is not limited to this, for example, only the bottom lower surface of the cargo oil tank or the lower surface of the exposed upper deck. In some cases, it is provided.

  In addition, the square trunk is U-shaped or recessed in cross section on the lower surface of the bottom plate of the cargo oil tank or the lower part of the upper deck of the exposed area so that it is located between two adjacent longitudinal ribs. It can also be formed by attaching a member.

It is sectional drawing of the liquid carrier ship which concerns on this invention. It is a principal part expansion perspective view of the liquid carrier ship which concerns on this invention. It is a perspective view of the square trunk provided in the ballast tank. It is an enlarged side view of the front-end | tip part of the square trunk provided in the ballast tank. It is a cross-sectional view of a conventional oil tank ship. It is a principal part expanded sectional view of the conventional oil tank ship.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Liquid carrier 5 Bottom part of tank tank 8a-8c, 18a-18d Square trunk 9 Longitudinal rib 20 Exposed part upper deck

Claims (6)

  In a liquid carrier ship provided with a plurality of cargo oil tanks in the ship's direction and provided with piping for lifting and loading along the cargo oil tank, the bottom bottom surface of the cargo oil tank and / or the bottom surface of the exposed upper deck Further, one or a plurality of rectangular trunks for lifting and loading using the bottom of the cargo oil tank or the upper deck of the exposed portion and a pair of adjacent longitudinal ribs are provided. .   In a liquid carrier ship provided with a plurality of cargo oil tanks in the ship's direction and provided with piping for lifting and loading along the cargo oil tank, the bottom bottom surface of the cargo oil tank and / or the bottom surface of the exposed upper deck Further, one or a plurality of rectangular trunks for lifting and loading using the bottom of the cargo oil tank or the upper deck of the exposed portion are provided.   A square trunk is provided on the bottom of the cargo oil tank or the upper deck of the exposed portion, and on the bottom lower surface of the cargo oil tank and / or on the lower surface of the exposed upper deck of the cargo oil tank, The liquid carrier according to claim 1, wherein the liquid carrier is formed by a bottom plate added between two longitudinal ribs.   The liquid carrier according to claim 1, 2, or 3, wherein a suction pipe is provided at a tip of a square trunk provided on a bottom lower surface of the cargo oil tank.   The liquid carrier according to claim 1, 2, or 3, wherein a rectangular trunk provided on the lower surface of the upper deck of the exposed part is communicated with the exposed part traversing piping through a connecting pipe.   The square trunk provided on the bottom lower surface of the cargo oil tank and the square trunk provided on the lower surface of the exposed upper deck are communicated with each other via a pipe in the pump room. Liquid carrier.

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