Method and apparatus for filling a tank with a cryogenic liquid

F - Mech Eng,Light,Heat,Weapons – 17 – C

Patent

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Details

F17C 9/00 (2006.01) F17C 6/00 (2006.01) F17C 13/02 (2006.01)

Patent

CA 2751136

The invention relates to a method for filling a tank with a cryogenic liquid from a storage unit (1), a filling process during which a part of the cryogenic liquid is transformed into a gas phase in the tank, and in which, during the filling, at least part of the gas thus formed is discharged, characterised in that the method comprises providing a filling station (5) containing a first channel (2) which connects the storage unit to the tank and enables the transfer of cryogenic liquid from the storage unit to the tank, and a second channel (3) which connects a gas outlet of the tank to the filling station and makes it possible to transfer the gases to be discharged from the tank to the filling station, where said gases will be discharged to the outside, the station comprising a means (23) for detecting the presence of cryogenic liquid in the gas transferred to the station, the detection information being transmitted to a unit for acquiring and processing data, inside or outside the station, suitable for automatically stopping the filling apparatus when the tank is considered to be full.

L'invention a pour objet un procédé de remplissage par un liquide cryogénique d'un réservoir, à partir d'un stockage (1), remplissage durant lequel une partie du liquide cryogénique est transformée en phase gazeuse dans le réservoir, et où l'on procède, durant le remplissage, à l'évacuation d'au moins une partie du gaz ainsi formé, se caractérisant en ce que l'on dispose d'une station de remplissage (5) au travers de laquelle transite une première voie (2) reliant le stockage au réservoir et permettant le transfert de liquide cryogénique du stockage au réservoir, et une seconde voie (3) reliant une sortie gaz du réservoir à la station de remplissage et permettant de ramener les gaz à évacuer du réservoir vers la station de remplissage où ils seront évacués vers l'extérieur, la station comportant des moyens de détection (23) de la présence de liquide cryogénique dans le gaz ramené vers la station, l'information de détection étant transmise à une unité d'acquisition et de traitement de données interne ou non à la station, apte à permettre l'arrêt automatique du remplissage quand le réservoir est considéré comme plein.

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