Methods and systems for pressure exchange

B - Operations – Transporting – 01 – D

Patent

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Details

B01D 61/06 (2006.01) F04F 13/00 (2009.01) F04B 43/02 (2006.01) F04B 43/08 (2006.01) F04B 43/113 (2006.01)

Patent

CA 2749726

Methods and systems for energy recovery in desalination or other systems are provided to transfer the pressure en-ergy from one fluid to anther fluid. A system for energy recovery (300) with a container comprises two sections (302,304) separat-ed by one or plurality of flexible impermeable diaphragms (306) and pressures of the two fluids in the two sections are transmit-ted- during the cyclical filling and pumping operations, as well as flow control valves (308,310,312,314) As one embodiment, two flexible impermeable tubes operable to receive two fluids of different pressures respectively connect to flow control valves. The first fluid and the second fluid are separated b\ the flexible impermeable diaphragm formed by the flexible tubes. Cyclical inflows of the two fluids transmit the higher pressure of one fluid to the other through the diaphragm and transfer the energy from one flu-id to the other.

La présente invention concerne des procédés et des systèmes de récupération d'énergie utilisés dans des systèmes de dessalement ou autres qui servent à transférer l'énergie de pression d'un fluide à un autre fluide. Un système de récupération d'énergie (300) équipé d'une cuve comprend deux parties (302, 304) séparées par un ou plusieurs diaphragmes (306) souples et imperméables et la pression des deux fluides dans les deux parties est transmise durant les opérations cycliques de remplissage et de pompage; ledit système comprend également des vannes de régulation du débit (308,310,312,314). Selon un mode de réalisation, deux tubes flexibles imperméables pouvant être amenés à recevoir deux fluides de pression différente sont respectivement raccordés à des vannes de régulation du débit. Le premier fluide et le second fluide sont séparés par le diaphragme souple et imperméable formé par les tubes flexibles. Le débit entrant cyclique des deux fluides transmet la pression la plus importante d'un fluide à l'autre par l'intermédiaire du diaphragme et il y a ainsi transfert d'énergie d'un fluide à l'autre.

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