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Liquefied gas carrying vessel

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

Active Publication Date: 2019-06-07
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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  • Liquefied gas carrying vessel
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  • Liquefied gas carrying vessel

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Experimental program
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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 carrying vessel, which maximizes the capacity of a cargo tank while ensuring ballast water capacity such that the vessel has sufficient stability. This liquefied gas carrying vessel (1) has, within a cargo hold (10), a cargo tank (10a) capable of loading liquefied gas having a specific gravity in the range of 0.58-0.70, wherein: the cargo tank (10a) except for a tank dome portion (10b) is disposed below an upper deck (7); Lpp / Bm is within a range of 5.0-6.0 and Bm / dsm is within a range of 2.0-3.0, where the length over all Loa is in a range of 160-190 m, Lpp is the length between perpendiculars, Bm is the breadth molded, and dsm is the full load draft; and in the hull central cross section, Sbm / Smm is within a range of 0.10-0.25, where Sbm isthe sectional area of a ballast tank (20) and Smm is the sectional area of the hull.

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 Applications(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