Energy recovery system

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United States of America Patent

PATENT NO 9993773
SERIAL NO

15128333

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Importance

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Abstract

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An energy recovery system in a seawater desalination plant uses a reverse-osmosis membrane method for removing salinity from seawater. The system is configured to supply high-pressure water produced by pressurizing raw water with a high-pressure pump to a reverse-osmosis membrane cartridge, and to supply concentrated water discharged from the cartridge to an isobaric energy recovery device to recover pressure energy of the concentrated water whereby part of the raw water supplied to the isobaric energy recovery device is pressurized, and then to allow the pressurized raw water to merge into the high-pressure water pressurized by the high-pressure pump. The system includes a booster pump for boosting a pressure of the concentrated water discharged from the cartridge, and an energy recovery turbine for recovering energy by using the pressure head difference between the pressurized raw water from the isobaric energy recovery device and the high-pressure water discharged from the pump.

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Patent Owner(s)

Patent OwnerAddress
EBARA CORPORATIONOHTA-KU TOKYO 144-8510

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Goto, Akira Tokyo, JP 133 1556
Takita, Shigeo Tokyo, JP 4 12

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