发电供水工程输水系统过渡过程数值模拟方法研究
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摘要
为了实现水资源的综合利用,工程上常常从现有水电站的引水隧洞或压力管道取水,兼顾发电与供水的需求。本文以南水水库供水工程为例,针对兼有发电、供水特征的输水系统建立了数学模型,分析其在发电、供水以及发电+供水三种运行工况时,恒定流计算初始参数的调整方法和发电与供水两系统在非恒定流过渡过程中的相互影响,探索兼有发电、供水特征的输水系统过渡过程的模拟计算分析思路与方法,为类似发电供水工程输水系统过渡过程的分析计算提供借鉴。
In order to achieve both hydropower generation and water supply,some hydropower stations with high water quality provide water to downstream areas by drawing water from the headrace tunnel. This paper takes the South Water Reservoir Project as an example to study the transient process of the water conveyance system combining power generation and water supply by using the numerical method. Firstly,a mathematical model of the hydropower and water-supply system of the selected project is established. Then,the adjusting method of the initial parameters of the steady flow case and the interaction of hydropower and water-supply systems in the transient process under the three operation modes are analyzed. Finally,the numerical analysis ideas for transient process are induced in order to provide a design basis for this type of power generation and water supply engineering.
In order to achieve both hydropower generation and water supply,some hydropower stations with high water quality provide water to downstream areas by drawing water from the headrace tunnel. This paper takes the South Water Reservoir Project as an example to study the transient process of the water conveyance system combining power generation and water supply by using the numerical method. Firstly,a mathematical model of the hydropower and water-supply system of the selected project is established. Then,the adjusting method of the initial parameters of the steady flow case and the interaction of hydropower and water-supply systems in the transient process under the three operation modes are analyzed. Finally,the numerical analysis ideas for transient process are induced in order to provide a design basis for this type of power generation and water supply engineering.
引文
[1]冯文涛.水电站压力管道取水对发电机组出力影响分析[J].吉林水电,2016,(7):31-34.
[2]刘怡,杨建东.引水管道取水的水电站过渡过程分析[J].中国农村水利水电,2012,(4):120-122.
[3] Wylie E B,Streeter V L. Fluid Transient in Systems[M]. London:Prentice-Hall,Inc.,1993.
[2]刘怡,杨建东.引水管道取水的水电站过渡过程分析[J].中国农村水利水电,2012,(4):120-122.
[3] Wylie E B,Streeter V L. Fluid Transient in Systems[M]. London:Prentice-Hall,Inc.,1993.