| US 7,591,290 B2 | ||
| Protection of cryogenic storage units against filling overpressures | ||
| Emmanuel Bourgeois, Longjumeau (France); André Marion, Villeparisis (France); Robert Wallez, Ayrens (France); and Jean-Marc Rozo, Ormesson (France) | ||
| Assigned to L'Air Liquide, Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude, Paris (France) | ||
| Appl. No. 10/562,982 PCT Filed Jun. 23, 2004, PCT No. PCT/FR2004/050287 § 371(c)(1), (2), (4) Date Dec. 28, 2005, PCT Pub. No. WO2005/008121, PCT Pub. Date Jan. 27, 2005. |
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| Claims priority of application No. 03 50317 (FR), filed on Jul. 10, 2003. | ||
| Prior Publication US 2006/0130925 A1, Jun. 22, 2006 | ||
| Int. Cl. B65B 1/30 (2006.01) | ||
| U.S. Cl. 141—83 [141/231] | 7 Claims |
| 1. A system for filling a cryogenic fluid storage tank from a mobile tank comprising a pressurized-fluid supply pump connectable
via a filling hose to a fluid inlet of the storage tank, wherein the mobile tank comprises a pump control unit including a
pressure sensor connectable to a pressure tapping of the storage tank via a secondary hose, said pressure sensor adapted to
measure a pressure inside the storage tank and supply the measured pressure to a programmable controller, said programmable
controller being written with programmable logic allowing the pump to operate only when the pressure measured in the storage
tank lies within one of three pressure ranges, said programmable logic adapted to:
i) compare the measured pressure to the three pressure ranges, each one of which has a minimum pressure and a maximum pressure,
ii) establish operation of the pump within one of said pressure ranges, and
iii) trigger a safety shutdown of the pump if the maximum pressure of the established range is reached within the storage
tank.
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