Systems and methods to reduce the pressure in a pressure...

A - Human Necessities – 23 – L

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A23L 3/015 (2006.01)

Patent

CA 2609699

Systems and methods for performing a stepwise depressurization of a high- pressure fluid (liquid) filled chamber are shown and described. At least two valves are controllably opened and closed in a sequence to release a predetermined amount of pressure from the high-pressure chamber. At least some of the pressurized fluid released from the high-pressure chamber is stored, at least temporarily, in a second pressure chamber. The second pressure chamber is located between the two controllable valves. A control system controls the valves in response to a signal from at least one pressure sensor coupled to the high-pressure chamber. Additional components can be included in the system such as a pressure intensifier and a high-pressure pump, both coupled to the high-pressure chamber, and at least one other pressure sensor to improve the accuracy of the measured pressure in the high-pressure chamber.

L'invention concerne des systèmes et des procédés destinés à réduire la pression dans une chambre haute pression remplie d'un fluide (liquide). Au moins deux valves sont ouvertes et fermées de façon commandée en séquence en vue de la libération d'une quantité prédéterminée de pression à partir de la chambre haute pression. Une partie au moins du fluide sous pression libéré à partir de la chambre haute pression est stockée, au moins temporairement, dans une seconde chambre de pression. La seconde chambre de pression est située entre les deux valves pouvant être commandées. Un système de commande assure la commande des valves en réponse à un signal en provenance d'au moins un capteur de pression couplé à la chambre haute pression. Des éléments supplémentaires peuvent être inclus dans le système, tels qu'un multiplicateur de pression et une pompe haute pression, tous deux couplés à la chambre haute pression, au moins un autre capteur de pression étant utilisé pour améliorer la précision de la mesure de la pression dans la chambre haute pression.

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