G - Physics – 01 – N
Patent
G - Physics
01
N
73/115, 116/66.1
G01N 19/08 (2006.01) F17C 13/12 (2006.01) G01M 3/22 (2006.01)
Patent
CA 1135977
A B S T R A C T A problem with tanks for storing liquefied gases is the development of cracks in the heat-insulating lining of the tank. Methods have been proposed for the detection of cracks occurring in the lining comprising passing a purging gas, for example nitrogen, through a channelled layer in the heat-insulating lining to a gas-analyzer, Contamination of the purging gas by the contents of the tank, which can be detected by the gas-analyzer, indicates the presence of a crack in the heat-insulating lining. The invention is directed to an improved design of the channelled layer, so that a uniform distribution of the purging gas along an area to be watched for the development of cracks is obtained.
349438
Shell Internationale Research Maatschappij B.v.
Sherman
LandOfFree
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