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lng ship or lpg ship

A technology for LNG ships and hulls, applied in the directions of ship hulls, ship parts, ship construction, etc., can solve problems such as damage to membranes or insulation parts, and achieve the effect of reducing material costs and large tank volume

Inactive Publication Date: 2018-10-12
森元信吉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the other hand, if a thin-film type tank encounters wind and waves when it is half loaded, there will be a sloshing phenomenon in which excessive pressure is applied to the inner wall of the tank due to the swaying of the hull and the swaying of the LNG liquid level. The liquid load in the tank fluctuates violently due to the swaying of the hull, causing damage to the membrane or insulation under the impact

Method used

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Embodiment Construction

[0075] Embodiments of the present invention will be described below with reference to the drawings.

[0076] Such as figure 1 and figure 2 As shown, the LNG ship is sequentially connected from the front with the bow 10 , the tank partition 12 , the machinery room 14 and the stern 16 , and above the machinery room there is a living area 18 and even a wheelhouse 20 . The tank section is divided into a plurality of sections by transverse partition walls 32 .

[0077] In the present invention, it is an LNG ship having a structure in which a substantially square independent tank 30 is installed in the hold without being integrated with hull (double hull) structural members 36 and 35 .

[0078] In addition, supports 36 , 36 .

[0079] In the present invention, at least a part of the tank group is designed as an independent rectangular long tank 30 that is longer in the ship's length direction than in the ship's width direction, and the long tank 30 is arranged in the cabin alon...

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Abstract

An economical hull structure can be obtained by using a single-shaped tank that has a large tank volume relative to the size of the ship and can reduce material costs. An LNG ship or LPG ship having a structure in which substantially square independent tanks are provided in a hold without being integrated with hull structural members, the tanks being larger in the direction of the length of the ship than in the direction of the width of the ship A long long tank (30) is arranged in the cabin along the length direction of the ship, and the long tank (30) is divided into two parts in the length direction of the ship by a partition wall (31) separated by a plate along the width direction of the ship. More than two liquid load chambers (30‑1, 30‑2, 30‑3).

Description

technical field [0001] The present invention relates to liquefied natural gas (LNG) or LPG ships. Background technique [0002] With regard to LNG, since the emission of nitrogen oxides and sulfur dioxide is small during combustion, the demand for it as a clean energy source is increasing year by year. LNG is liquefied by cooling natural gas to -162°C. The tanks of LNG carriers that transport LNG at sea use low-temperature materials to withstand a wide range of temperature changes, and take into account thermal shrinkage / thermal stress caused by temperature differences. Structure. In addition, since the LNG carrier is responsible for high-speed / mass transportation, it usually has a speed of about 20 knots (Knot), and the hull tends to be larger, and the tank capacity of more than 200,000m is currently being planned 3 LNG carrier. [0003] In the past LNG carriers, the LNG tanks mounted on the LNG carriers are roughly divided into two types, one is a spherical tank method ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B63B25/16B63B11/00
CPCB63B25/16B63B2025/087B63B11/00F17C2223/0161B63B2025/085F17C2270/0105F17C2260/016B63B17/0027B63B11/02B63B25/08
Inventor 森元信吉
Owner 森元信吉
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