Method for detecting a leak in a sealed and thermally insulating tank

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United States of America

PATENT NO 11959593
SERIAL NO

17299932

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Abstract

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The invention relates to a method for detection of a leak from a tank for liquid gas, said tank comprising a membrane surrounding the liquid gas, the membrane being surrounded by an insulation space which separates the membrane from a wall, the insulation space being filled an inert gas which is injected and extracted by at least one duct. The detection method comprises the following steps:

    determining 921 a first variation of mass of inert gas ΔM1 between two moments by measuring the gas added and removed by the duct;calculating 922 a second variation of mass of inert gas ΔM2 corresponding to a difference between two masses of inert gas measured in the insulation space; andcomparing 931 the first variation with the second variation, and triggering an alarm if a difference E1 between the first variation and the second variation of mass of inert gas is greater than a first threshold S1.

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Patent Owner(s)

Patent OwnerAddress
GAZTRANSPORT ET TECHNIGAZ1 ROUTE DE VERSAILLES 78470 SAINT-REMY-LES-CHEVREUSE 78470

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bugnicourt, Bertrand Saint Remy les Chevreuse, FR 5 4
Dupont, Nicolas Saint Remy les Chevreuse, FR 11 19
Le, Stang Jean-Yves Saint Remy les Chevreuse, FR 2 2
Spittael, Laurent Saint Remy les Chevreuse, FR 7 21

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