Thermally insulating jacket under reversible vacuum

Details Thermally insulating jacket under reversible vacuum Thermally insulating jacket under reversible vacuum

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F28F 13/00 (2006.01) B01L 7/04 (2010.01) B01J 20/02 (2006.01) F16L 59/00 (2006.01) F16L 59/075 (2006.01) F17C 3/08 (2006.01) H01M 2/02 (2006.01) H01M 2/10 (2006.01) H01M 10/50 (2006.01) B01L 11/02 (2006.01)

Patent

CA 2126815

ABSTRACT "THERMALLY-INSULATING-JACKET-UNDER-REVERSIBLE-VACUUM', A thermally insulating jacket under reversible vacuum, having an inner wall (2), an outer wall (3) and an inner space (4) between said walls in fluid communication with an outer housing (6; 6'; K) containing a reversible non-evaporable hydrogen getter (7; 7') loaded with hydrogen before use, wherein: a) said reversible hydrogen getter (7; 7') has a hydrogen equilibrium pressure (Px1) lower than 100 mbar at 500°C, when the hydrogen concentration in the getter is 0.1% b.w., and is kept at a variable or constant temperature (Ti) essentially different from the temperature (Tc) of the hotter wall of the jacket; b) said inner space (4) contains a non-evaporable promoter getter (9; 9'; 9") having a hydrogen equilibrium pressure (Px2) higher than 100 mbar at 500°C, when the hydrogen concentration in the getter is 0.1% b.w., which is essentially exposed to said temperature (Tc).

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