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《中国化学工程学报(英文版)》 2008-02
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Energy Recovery Device with a Fluid Switcher for Seawater Reverse Osmosis System

SUN Jiaxi,WANGYue,XU Shichang and WANG Shichang Chemical Engineering Research Center,State Key Laboratory of Chemical Engineering,School of Chemical Engi- neering and Technology,Tianjin University,Tianjin 300072,China  
Energy recovery device(ERD)is an important part of the seawater reverse osmosis(SWRO)desalina- tion system.There are principally two kinds of ERDs,the centrifugal type and the positive displacement(PD)type. The PD type is of extensive concern and is preferred in large-scale plants.In this article,an innovative fluid switcher was presented and a two-cylinder hydraulic energy recovery unit with a lab-scale fluid switcher was set up. Tap water was used as the working medium instead of the actual seawater and brine in SWRO desalination plants. Under steady state operating conditions,the experimental results were obtained on the variations of the pressure and flow rate to and from the energy recovery unit.The hydraulic recovery efficiency(EH)of the energy recovery unit with the fluid switcher reached up to 76.83%.
【Fund】: the Seawater Desalination Research Programs of Tianjin(043185211-4)
【CateGory Index】: P747.5
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1 WANGYue ,WANGShichang andXUShichang (ChemicalEngineeringResearchCenter ,SchoolofChemicalEngineeringandTechnology , StateKeyLaboratoryofChemicalEngineering ,TianjinUniversity,Tianjin 30 0 0 72 ,China);HYDRAULIC ENERGY RECOVERY FOR SWRO DESALINATION PLANTS[J];Journal of Chemical Industry and Engineering(China);2003-06
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