Liquefied natural gas transport ship and liquefied natural gas transport system

Abstract

The invention provides a liquefied natural gas transport ship and a liquefied natural gas transport system, and relates to the technical field of oceans. The ship body comprises a double-layer bottomplate, a double-board side plate and a single-layer main deck; the double-layer bottom plate comprises a ship bottom outer plate, a ship bottom inner plate and a ship bottom rib plate; the double-board side plate comprises a board side outer plate, a board side inner plate and a board side reinforcing frame plate; the single-layer main deck comprises a deck body and a deck reinforcing structure; the ship bottom inner plate, the broad side inner plate and the deck body form a liquid tank cabin in a surrounding mode, and the deck reinforcing structure is arranged on the outer side face of the deck body. The liquefied natural gas transport system comprises the ship. The technical problems that in the prior art, the capacity of a ship body structure cabin of an LNT A-BOX type liquefied gas ship is small, the overall weight of the ship body is heavy, the top in the cabin is low, the laying of a secondary screen wall and the construction process of a supporting structure are difficult, the period is long, the cost is high, and the maintenance difficulty in the cabin is large are solved.

Description

technical field [0001] The invention relates to the field of marine technology, in particular to a liquefied natural gas transport ship and a liquefied natural gas transport system. 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 liquid 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; according to " The Rules for the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk (referred to as the IGC Code) require that when the temperature of the cargo loaded in an independent type tank is lower than -10°C, a complete secondary barrier needs to be installed. The structure of the hu...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of liquefied natural gas transport ship and liquefied natural gas transport system, to alleviate the cabin capacity that the hull structure of the LNT A-BOX type liquefied gas ship in the prior art exists; the overall weight of the hull is relatively heavy; The top is low, the laying of the secondary screen wall and the construction process of the supporting structure are difficult, the cycle is long, the cost is high, and the technical problems of cabin maintenance are difficult

Images