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Liquefied gas carrier

A technology for liquefied gas and transport ships, which is applied in the directions of transportation and packaging, hull, and ship construction, and can solve the problems of higher center of gravity, lower recovery performance, and increased ballast volume.

Active Publication Date: 2021-07-09
MITSUI ENG & SHIPBUILD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the center of gravity of the entire hull becomes high, and the recovery performance decreases, so in order to prevent this, it is necessary to increase the ballast volume

Method used

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Examples

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Embodiment Construction

[0029] Below, while referring to the attached Figure 1 Next, a liquefied gas carrier according to an embodiment of the present invention will be described. The liquefied gas carrier 1 according to this embodiment of the present invention is a liquefied gas carrier that transports liquefied gas having a relatively high specific gravity such as LPG (liquefied petroleum gas).

[0030] exist Figure 1 ~ Figure 3 In the liquefied gas carrier 1 of the illustrated embodiment, the hull is formed by surrounding the bow 2, the stern 3, the bottom 4, the upper plate of the double bottom (the floor of the cargo hold) 5, the outer shell 6, and the upper deck 7. . In addition, there are cargo tanks 10a (thick line parts) in the cargo hold 10 for loading liquefied gas, ballast tanks (cross hatched parts) 20 for feeding and discharging ballast water, and fuel tanks (hatched parts with oblique lines) for loading fuel. ) 30. In this liquefied gas carrier 1, the cargo tank 10a is arrange|po...

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PUM

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Abstract

The present invention provides a liquefied gas carrier which has sufficient recovery performance while securing the volume of the cargo box as much as possible and also securing the volume of ballast water. In the liquefied gas carrier (1) having a cargo tank (10a) capable of carrying a liquefied gas having a specific gravity in the range of 0.58 or more and 0.70 or less in the cargo hold (10), the cargo tank (10a) is configured such that the tank (10a) does not include a tank dome portion Except for (10b), it is arranged below the upper deck (7), and the overall length Loa of the liquefied gas carrier (1) is 160m or more and 190m or less; if the length between vertical lines is Lpp, the moulded width is Bm, set the full load draught as dsm, then Lpp / Bm is 5.0 or more and 6.0 or less, and Bm / dsm is 2.0 or more and 3.0 or less; and at the central section of the hull, if the cross-sectional area of ​​the ballast tank (20) is set as Sbm, set When the hull cross-sectional area is Smm, Sbm / Smm is 0.10 or more and 0.25 or less.

Description

technical field [0001] The present invention relates to a liquefied gas carrier, and more specifically, to a liquefied gas carrier having a sufficient restoration performance while ensuring a maximum capacity of a cargo tank and also ensuring a capacity of ballast water. Background technique [0002] In the past, a liquefied gas carrier was also called a gas carrier, and it loaded liquefied natural gas (LNG), liquefied propane, butane, and other liquefied petroleum gas (LPG) or ammonia in a liquid state into cargo containers. transported within. Among these LNG carriers, the temperature during transportation is very low at about minus 163°C. Except for the case where pressure tanks are mounted on the side of the cargo hold with cargo tanks, the ship's side shell and the inner longitudinal bulkhead are double-layered. The composition of the ship's side. On the other hand, in an LPG ship, the temperature during transportation is about minus 50°C, which is higher than that of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B43/06B63B25/08B63B29/00
CPCB63B15/00B63B25/08B63B29/00B63B43/06B63B11/04
Inventor 铃木宏始
Owner MITSUI ENG & SHIPBUILD CO LTD