南水北调中线干渠闸门调度运行方式探讨  

Gate operation in the middle route of the South-to-North Water Diversion Channel

作　　者：方神光[1] 吴保生[1] 傅旭东[1] 

机构地区：[1]清华大学水沙科学与水利水电工程国家重点实验室,北京100084

出　　处：《水力发电学报》2008年第5期93-97,共5页Journal of Hydroelectric Engineering

基　　金：中国博士后科学基金(20060390078);国家自然科学创新研究群体科学基金(50221903)

摘　　要：本文选取天津分水口为例,采用建立的南水北调中线电子渠道模型,模拟计算了该分水口分水流量变化时分别采用时序控制和同步控制进行闸门调度时干渠中的水流过渡过程。结果显示,时序控制较同步控制可以大幅度缩短干渠水力过渡时间并减小闸前水位变化幅度,但闸下流量和闸门开度变化幅度较同步控制要大。若采用分水口之间的分水流量进行区间调度以维持渠首流量不变,应用时序控制时可以更进一步缩短干渠水力过渡时间。闸前常水位运行模式下,不管采用哪种调度方式,都会影响到进入惠南庄前池的流量,这要求前池具有一定的调蓄容积以避免水位大幅度的变化,When the timed gate operation and simultaneous gate operation are used respectively to answer flow variation of Tianjin diversion, hydraulic transitional processes in the channel is simulated on the South-to-North electronic channel model. It shows that transitional time and variational range of water levels can be more reduced by using timed gate operation compared with simultaneous, but the variational ranges of gate discharge and openings would be more. Transitional time can be reduced more when redistributed withdrawal flow between diversions keeps up rather than changing inflow from the channel head. Flow entering into Huinanzhuang pool will be affected under using either gate operation, it requires additional volume of pool to avoid big variation of water levels in it.

关 键 词：水力学 南水北调中线工程 非恒定流 数学模型 时序控制 同步控制 

分 类 号：TV133.2[水利工程—水力学及河流动力学]