Abstract: The hydraulic opening and closing equipment of Fengman dam works on two cylindes. The difference of the two cylindes are required in30 mm lest the valve would be locked. We finished it by combination of the rude adjust with flow control valve and the accurate adjust with solenoid operated directional valve for drainage.It is explained in this article.?

摘要： 丰满发电厂溢洪坝液压启闭机闸门系统为烈缸启闭，为防止闸门在门轨中卡滞，要求带动闸门启闭的两个油缸的同步偏差不超过30mm，为此，采用了调速阀粗调结合放油电磁阀精调的同步控制系统。本文重点阐述了该同步控制系统的液压及电气控制工作原理及元件的选择等。