介绍了南水北调中线工程河南安阳段液压启闭机系统的设备配置、特点和在现场的应用调试情况。该液压启闭系统左侧油路选用比例阀,右侧油路为开关阀,通过比例阀调节闸门启闭过程中的同步。将比例阀纠偏与开关阀纠偏的液压启闭系统进行比较,显示了比例阀控制的特点。 This paper introduces the equipment configuration, characteristics and commissioning of the hydraulic hoist system of the mid-route of South-to-North Water Diversion Project in Anyang, Henan Province. The left and right hydraulic opening and closing system hydraulic proportional valve, the right side of the oil valve for the opening and closing, through the proportional valve to adjust the process of opening and closing the gate synchronization. The proportional valve deviation correction and switching valve hydraulic opening and closing system compared to show the characteristics of proportional valve control.