新安江水电站进水口检修闸门拉杆改造与有限元强度分析  

Modification and Finite Element Strength Analysis for the Tie Rod of Maintenance Gate of Xin’anjiang Hydropower Station

作　　者：顾承庆 邓亚新 厉洪祥 王青华 朱春鹏 GU Chengqing;DENG Yaxin;LI Hongxiang;WANG Qinghua;ZHU Chunpeng(State Grid Xin Yuan hydropower Co.,Xin’An river Hydroelectric Power Station,Hangzhou 311608,China;Shanghai Energy Science&Technology Co.Ltd.,Shanghai 201315,China)

机构地区：[1]国网新源水电有限公司新安江水力发电厂,浙江省杭州市311608 [2]上海安乃基能源科技有限公司,上海市201315

出　　处：《水电与抽水蓄能》2023年第2期78-83,共6页Hydropower and Pumped Storage

基　　金：国网新源控股有限公司科技项目(SGXYXA00FJJS2100027)。

摘　　要：新安江水电站检修门的门槽底坎距离坝面足有44.6m,必须采用专用多节拉杆配合坝顶门机副钩才能完成闸门的启闭操作。每当机组检修停/复役操作时,需将多节拉杆逐一拆装、吊运,经多次起吊闸门才能完成检修门的启闭工作。本文对闸门拉杆进行改装研究,采用伸缩套杆结构替换原多节拉杆结构,每节套杆间由穿销锁定,使闸门启闭时无需对套杆进行拆装操作,提升吊装效率。为验证套杆结构可靠性,采用ANSYS Workbench平台对伸缩套杆结构进行有限元强度分析。结果表明:所设计的伸缩套杆结构,在各运行工况下最大等效应力值均小于材料屈服极限,满足强度需求。研究成果可为伸缩套杆结构的安全运行及后续结构优化设计提供理论依据。The gate slot of the maintenance gate of Xin’anjiang hydropower station is 44.6m away from the dam surface.The opening and closing operation of gate can be completed only by using special multi-section pull rods and the auxiliary hook of the gantry crane on dam crest.Whenever the unit is overhauled,shut down or put into service,it has to disassemble and lift the multi section pull rods one by one,and the opening and closing of the maintenance gate can be completed only after lifting the gate for many times.In this paper,the gate pull rod is reformed and studied.The telescopic sleeve rods are used to replace the original multi-section pull rod structure.Each sleeve rod is locked by a pin,so that there is no need to disassemble the sleeve rod when the gate is opened and closed,so as to improve the hoisting efficiency.In order to verify the reliability of the telescopic sleeve rod structure,the finite element strength analysis of the telescopic sleeve rod is carried out by using ANSYS Workbench.The result shows that the maximum equivalent stress of the designed telescopic sleeve rod is less than the material yield limit under various operating conditions,which meets the strength requirements.The research result can provide a theoretical basis for the safe operation of telescopic rod structure and the subsequent structural optimization design.

关 键 词：检修闸门 伸缩套杆 结构设计 强度校核 

分 类 号：TV735[水利工程—水利水电工程]