研究开发了一种反渗透淡化用差动式能量回收装置,并对装置进行了性能测试和8×24 h连续运行试验。结果表明:该差动式能量回收装置的全部指标均符合国家海洋行业标准《反渗透用能量回收装置》(HY/T 108—2008)的要求,有效能量转换效率达到94.6%以上。该装置运行平稳,满足反渗透系统使用需要,已成功应用于海水RO膜的检测。 A differential energy recovery unit for reverse osmosis desalination was researched and developed, and the performance test and 8 × 24 h continuous operation test of the unit were carried out. The results show that all the indexes of the differential energy recovery unit meet the requirements of National Oceanic Industry Standard “Reverse Osmosis Energy Recovery Device” (HY / T 108-2008), and the effective energy conversion efficiency reaches 94.6%. The device runs smoothly to meet the needs of the use of reverse osmosis systems, has been successfully applied to the detection of seawater RO membrane.