LNG marine vessel design

LNG vessels have specialized cryogenic handling equipment and cargo containment systems able to carry LNG cooled to -160° C. With a rapidly evolving LNG market, newer vessels are being designed and built to incorporate continuous technical innovations; noticeably increased cargo carrying capacity, more efficient hull designs and propulsion systems, enhanced cargo insulation and improvements of on-board liquefaction and re-gasification.

Structure of LNG Vessel

Liquefied natural gas (LNG) ship types according to the structure of the cargo tank have independent storage tank type and membrane type two kinds. Early liquefied natural gas (LNG) ship is independent storage tank type, is cylindrical, cylindrical and spherical shape of the storage tank in the boat. The tank itself has certain strength and stiffness. Structural member support and fixed effect to the tank only. Late 60 s, the film type LNG ship. This kind of double hull structure is used in ship hull inner shell is the carriage of the cargo tank shell. In the cargo tank lining has a membrane made of nickel alloy steel sheet. In contact with it and the cryogenic liquid directly, but only up to prevent liquid leakage barrier effect, both on the membranes of the liquid cargo to load through the membrane and the thermal barrier between the inner hull directly to the main hull. Compared with independent storage tank type, diaphragm type has the advantage of high volume utilization, structure, light weight, so the new LNG ship, especially large, membrane structure is used to most. The structure of materials and technology requirements. In addition, Japan also developed a half film type ship structure in between.

Liquefied natural gas (LNG) ship equipment complex, high technical requirements, volume compared with the deadweight of the same oil tanker is larger, so the cost is much bigger. Liquefied natural gas (LNG) ship is generally equipped with gas liquefaction plant again, can also transport liquefied petroleum gas (LPG).

Company information

UniSite group was established in a strategic location, Chinese second largest port, Ningbo, which is characterized by visible leadership, vitality, innovation, long-term vision and a sound financial position.

As an international partner, we are specialized in providing comprehensive service of dredging, land reclamation, offshore projects, marine engineering, municipal engineering and environmental remediation projects.

Besides our own production base and technology system, we also have strategic partnerships with DONGPENG shipyard, a leading producer of chemical vessels in China.UniSite group was established in a strategic location, Chinese second largest port, Ningbo, which is characterized by visible leadership, vitality, innovation, long-term vision and a sound financial position.
As an international partner, we are specialized in providing comprehensive service of dredging, land reclamation, offshore projects, marine engineering, municipal engineering and environmental remediation projects.
Besides our own production base and technology system, we also have strategic partnerships with DONGPENG shipyard, a leading producer of chemical vessels in China.

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Product Categories : Chemical Vessel > LNG Vessel