洋溪高水头单级船闸输水系统选型及水力数值分析  

Selection and hydraulic numerical analysis of water conveyance system for high head single-stage ship lock of Yangxi Hydraulic Complex

作　　者：望燕慧 郭超[2] 莫祖韬 韦海勇[1] WANG Yan-hui;GUO Chao;MO Zu-tao;WEI Hai-yong(Guangxi Water&Power Design Institute Co.,Ltd.,Nanning 530023,China;Nanjing Hydraulic Research Institute,Nanjing 210008,China)

机构地区：[1]广西水利电力勘测设计研究院有限责任公司,南宁530023 [2]南京水利科学研究院,南京210008

出　　处：《广西水利水电》2024年第6期42-47,共6页Guangxi Water Resources & Hydropower Engineering

摘　　要：洋溪水利枢纽工程是广西柳江上以防洪为主、兼顾发电和航运的大型综合水利枢纽工程。船闸为1000 t级Ⅲ级船闸,其有效尺度为190 m×23.5 m×4.8 m,最大设计水头为32.8 m,是广西境内仅次于大藤峡(40.25 m)的单级高水头船闸。船闸输水系统是运行最频繁的工作系统,运行水头越高,在一定的过闸时间要求下,闸室内水位变幅越大;船闸级别越高,闸室尺寸越大,闸室充水流量则越大,闸室水面波动也越明显,对输水廊道消能要求越高。本文针对船闸输水规模,开展了输水系统的结构尺寸计算,通过对3种典型工况的水力数值分析成果表明,提出的船闸输水系统廊道布置尺寸参数满足水力学指标要求。Located on Liujiang River in Guangxi,Yangxi Hydraulic Complex is a large-scale multi-purpose project privileged to flood control incorporating with power generation and navigation.It is designed with a 1000t-level Class III ship lock with effective dimensions of 190m×23.5m×4.8m and the maximum design head of 32.8m.This ship lock will be a single-stage high head ship lock in Guangxi,second only to Datengxia Gorge Hydraulic Complex with a head of 40.25m.The ship lock water conveyance system is the most frequently operated working system.The higher the operating water head is,the greater the water level fluctuation in the lock chamber is under the requirement of a certain passage time.The higher the level of the ship lock,the larger the size of lock chamber,the greater the water filling flow of lock chamber,the more obvious the fluctuation of the water surface in the lock chamber,and the higher the energy dissipation requirements for the water conveyance gallery.Structural dimension calculation of the water conveyance system was carried out according to the water delivery scale of ship lock.The results of hydraulic numerical analysis under three typical operating conditions demonstrate the selected dimensions of lock water conveyance gallery conform to the hydraulic index requirements.

关 键 词：高水头单级船闸 水力数值分析 部分旁侧泄水 惯性输水系统 洋溪水利枢纽 

分 类 号：U641.1[交通运输工程—船舶及航道工程]