Liquid cargo tank and liquefied gas ship

Abstract

The invention provides a liquid cargo tank and a liquefied gas ship, and relates to the technical field of ships. The cargo tank comprises a shell and a supporting structure; the shell comprises a bottom wall, a side wall and a top wall; the supporting structure comprises a bottom reinforcing frame, a lateral reinforcing frame, a top reinforcing frame and perforated webs. the bottom reinforcing frame is connected to the inner side of the bottom wall, the lateral reinforcing frame is connected to the inner side of the side wall, the top reinforcing frame is connected to the inner side of the top wall, the bottom reinforcing frame and the lateral reinforcing frame are connected through perforated webs, and the top reinforcing frame and the lateral reinforcing frame are connected through perforated webs. The liquefied gas ship comprises the liquid cargo tank. The technical problems that in the prior art, for enabling a liquid gasification ship body of an existing A-type liquid cargo tankto enter the Yangtze River to travel, the weight of the liquid cargo tank is large due to the fact that the ship width is increased in the mode of increasing the component size, and the shipyard operation cost is high are solved.

Description

technical field [0001] The invention relates to the technical field of ships, in particular to a liquid cargo tank and a liquefied gas ship. Background technique [0002] According to the regulations of the International Maritime Organization, the main types of liquid cargo tanks of ships carrying liquefied gases in bulk are membrane liquid cargo tanks and independent liquid cargo tanks. Independent cargo tanks can be subdivided into three types: Type A, Type B and Type C. Type A requires a complete secondary barrier, Type B requires a partial secondary barrier, and Type C is a pressure vessel without a secondary barrier. [0003] In order to make the liquefied gas ship with A-type liquid cargo tanks whose bottom plate and roof width are smaller than the height can enter the Yangtze River, it is necessary to improve the structure of the liquefied gas ship according to the limitations of the water depth and the height of the bridge on the Yangtze River. To become a liquefie...

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Problems solved by technology

[0004] The object of the present invention is to provide a liquid cargo tank and a liquefied gas ship, so as to alleviate the problem in the prior art that the liquefied gas hull of the existing A-type liquid cargo tank can enter the Yangtze River and travel, and the width of the ship is increased by increasing the size of its components. The resulting weight of the liquid cargo tank is too large, so the technical problem of the high operating cost of the shipyard

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