Underground storage tank for low temperature liquefied gas

Patent · Tue Nov 19 04:00:00 EST 1974

OSTI ID:5941812

Takase, K; Miyakohsi, H; Ohmura, M

The new inground LNG storage tank developed by Osaka Gas Co., Ltd., and Ohbayashi-Gumi, Ltd., is specially constructed to prevent the freezing of the soil beneath the floor slab to avoid upward stressing of the tank bottom and possible cracking. The floor slab lower floor slab consists of an upper floor slab section, upon the excavated bottom of the soil below the groundwater level, and numerous supports interposed between the upper and lower floor slab sections. An annular side wall of the tank extends to the lower floor slab section to form an adiabatic space free from the soil inside of the side wall between the upper and lower floor slab sections and the supporting member. This adiabatic space effectively prevents groundwater from entering into the adiabatic space and also keeps the coldness of the liquefied gas from being conducted to the soil under the lower floor slab, section, so that the storage tank does not receive any uplift thrust caused by freezing of the water and the soil. A heater can be located in the lower slab to keep the slab at a temperature higher than the soil's freezing temperature.

• Assignee: Osaka Gas Co., Ltd.
• Patent Number(s): US 3848418
• OSTI ID: 5941812
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
035000* -- Natural Gas-- Storage-- (1989-)
42 ENGINEERING
420205 -- Engineering-- Transport & Storage Facilities-- (1980-)
ASIA
CONTAINERS
DESIGN
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
JAPAN
LIQUEFIED GASES
LIQUEFIED NATURAL GAS
NATURAL GAS
STORAGE
TANKS
THERMAL INSULATION
UNDERGROUND STORAGE