UNDERGROUND STORAGE OF LIQUEFIED NATURAL GAS Russian patent published in 2011 - IPC F17C1/00 B65G5/00 E04B7/14 

FIELD: construction.

SUBSTANCE: storage is arranged below earth level (1) at the elevation that prevents freezing of the earth surface during the longest possible storage of gas. The storage is enclosed along the perimetre from the soil massif with a concrete wall of "wall in soil" type (2) and comprises a reinforced concrete reservoir (5) arranged on the base from compacted soil (3) and a heat insulation layer (4), and this reservoir at its external side surface is surrounded with a pliable layer (6) and is coated from inside with layers of heat insulation (7) and hydraulic insulation (8). The storage is equipped with a process well that exits the reinforced concrete reservoir to earth surface. On the concrete wall of the "wall in soil" type above the roof of the reinforced concrete reservoir below earth surface there is a support reinforced concrete ring (14), where guy ropes (15) coated with anticorrosion material are attached to support the roof of the reinforced concrete reservoir. The upper of the reinforced concrete reservoir roof, guy ropes and the support reinforced concrete ring to soil surface are filled with a layer of light heat insulation material.

EFFECT: possibility of increased capacity storages construction.

1 dwg