关键词: 溢洪道弧形工作闸门, 接力式液压启闭机, 双吊点同步控制

Abstract: The spillway relay hydraulic hoist of Shuikou hydropower station is a new type developed in the 1980s to solve the problem of difficult processing of piston rod with long stroke. It has the characteristics of short stroke instead of long stroke and small capacity instead of large capacity. It is the first of its kind in China. To enhance the automation level of the equipment, realize remote control and increase the function of closed-loop synchronous control of double lifting points, renovation is carried out. This paper summarizes the key technologies in the renovation design. Due to its excellent technical and economic indicators, it is expected that there would be wider application of relay hydraulic hoist to projects home and abroad in the future.

Key words: spillway radial gate, relay hydraulic hoist, synchronizing control of double lifting points of gate