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Anti-freezing method and apparatus for ground surrounding liquefied-gas-storing underground tank

Patent ·
OSTI ID:6368299
; ; ;
Because the freezing of subsurface soil surrounding an underground LNG storage tank exerts a pressure on the tank that jeopardizes the tank's safety, Japan's Kajima Kensetsu KK developed a method for warming the ground around the tank by circulating water in an adjacent column. A synthetic resin bag or envelope placed in the column is filled with granular materials such as sand or gravel to form a water-permeable body. Water injected into the bottom of the column and discharged from the top warms the ground surrounding the underground tank to prevent freezing.
Assignee:
Kajima, Kensetsu KK
Patent Number(s):
US 4094151
OSTI ID:
6368299
Country of Publication:
United States
Language:
English

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Related Subjects

03 NATURAL GAS
035000 -- Natural Gas-- Storage-- (1989-)
42 ENGINEERING
420205* -- Engineering-- Transport & Storage Facilities-- (1980-)
CONTAINERS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FREEZE PROTECTION
FUEL GAS
FUELS
GAS FUELS
GASES
HYDROGEN COMPOUNDS
LIQUEFIED NATURAL GAS
NATURAL GAS
OXYGEN COMPOUNDS
STORAGE
STORAGE FACILITIES
TANKS
UNDERGROUND STORAGE
WATER