基于同步冗余策略的龙溪口船闸启闭机设计

Hoist design for Longxikou ship lock based on synchronous redundancy strategy

针对龙溪口34 m口门船闸人字门在启闭过程中要求运行平稳、快速、同步性好、关终位门体错位小等问题,深入分析船闸人字门启闭过程中运行阻力矩的变化特性,详细介绍船闸启闭机形式和布置方式。从设备和土建等方面对人字门全开位时启闭机活塞杆与门体垂直和倾斜连接两种布置方式进行对比,得出口门宽度小于等于16 m的船闸宜采用倾斜连接,口门宽度大于16 m的船闸宜采用垂直连接布置形式。梳理了龙溪口船闸启闭机及液压控制设计特点,并基于同步冗余策略开展龙溪口船闸启闭机设计,设置两套位移传感器互备互校,实现人字门高效安全同步。通过龙溪口船闸试运行验证启闭机设计布置、选型和同步冗余策略合理可行。

Regarding the problems of stable operation,fast operation,good synchronization,and small dislocation of the closing door body of the 34 m gate of the Longxikou shiplock during the opening and closing process,this paper deeply analyzes the changing characteristics of the running resistance torque,and introduces the model and arrangement of hoist in detail.From the aspects of equipment and civil engineering,the two arrangement methods of inclined connection and vertical connection between the piston rod of hoist and the door body when the miter gate is fully open are compared,and the lock with a width of less than or equal to 16 m of the miter gate is suitable for oblique connection,and the vertical connection arrangement for the lock with the width of the miter gate greater than 16 m.The design characteristics of hoist and hydraulic control are introduced in detail.Based on the synchronous redundancy strategy,the design of hydraulic gate hoist is carried out.To realize the efficient and safe synchronization of the miter gate,two sets of displacement sensors are set up for mutual backup and mutual calibration.Through the trial operation of the Longxikou shiplock,the results are verified,and the design arrangement,selection and synchronous redundancy strategy of the hoist are reasonable and feasible.