FLOATING STORAGE OF LIQUEFIED NATURAL GAS Russian patent published in 2016 - IPC B63B25/16 B63B35/00 

FIELD: gas industry.

SUBSTANCE: invention relates to production of liquefied natural gas on Arctic seas continental plate and can be used for accumulation, storage and distribution of liquefied natural gas (LNG). Ice-resistant ship hull (1) of floating LNG storage consists of circular inclined board with flat bottom (2), in the middle of which spherical bulge (3) is arranged. From above hull (1) is closed by deck (4) inclined to boards. In ship hull bottom (2) spherical bulge (3) through heat-insulating layer (5) cryogenic spherical reservoir (6) is installed with double walls and heat insulating vacuumed cavity between them. LNG filling and output cryogenic pipelines (7) are located inside reservoir (6) from its head (8) to lower level. Outside tank (6) pipelines (7) are located in passage (9) closed from outer side. Under deck superstructure (10) and deck (4) shaft (11) with lift and ladders is located to ice-resistant ship hull (1) flat bottom (2). On flat bottom (2) process compartments (12) are located, as well as combined power plant propulsor compartment (13).

EFFECT: enabling possibility of simplified LNG production and transportation system on Arctic seas continental plate, as well as improving its reliability.

1 cl, 5 dwg