Operating Characteristics of Rotary Pressure Exchanger for SWRO Desalination System
ZHANG Jin-Xin1,2,3, WANG Yue1,2,3, YANG Yong-Jun1,2,3, CHENG Bai-Hua1,2,3, XU Shi-Chang1,2,3, WANG Shi-Chang1,2,3
1.��School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;��
2.��Chemical Engineering Research Center, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;��
3.��Tianjin Key Laboratory of Membrane Science and Desalination Technology, Tianjin University, Tianjin 300072, China
Abstract��
The operation cost for seawater reverse osmosis system has been reduced greatly due to the rapid development and wide application of energy recovery device��ERD��in recent years. In this article, a novel rotary pressure exchanger was designed and manufactured. The corresponding test platform was set up and the operating characteristics of the device were examined and analyzed��The results demonstrated that the device run steadily with a high energy recovery efficiency of 95.8%—97.7% under the capacity of 8.3 m3/h and operating pressure of 6.0 MPa. The device also presents good dynamic balance at rotation speed of 100—500 r/min. The minimum torque for driving the device is obtained at the rotation speed of 500 r/min, which is monitored to be 17—18 N·m.
ZHANG Jin-Xin, WANG Yue, YANG Yong-Jun, CHENG Bai-Hua, XU Shi-Chang, WANG Shi-Chang.Operating Characteristics of Rotary Pressure Exchanger for SWRO Desalination System[J]. Chemcial Industry and Engineering, 2012,29(5): 48-52
2012, Vol. 29 
