摘要
以山西省引黄入晋抽水系统为研究时象．建立了复杂抽水系统水力过渡过程计算的边界条件数学模型，并对以调压井和可控间作为防护手段的抽水系统事故停泵水力过渡过程进行了计算，提出了调压井稳定要求的经济断面．大量计算表明，有效地设置调压井并合理地确定可控阀的关阀程序，可避免抽水系统中水柱分离的产生，同时将压力管道中水锤压力的升高限制在允许的范围内．
The mathematical models of boundary conditions for complex pumping system areset up with the use of basic theory of waterhammer and the characteristics method. The hydraulic transients in a pumping system applying surge shafts and controllable valves. as waterhammer protection measures are analyzed and the economic cross-sectional areas of theshafts proposed. A great deal of computation shows that the effective layout of surge shaftsand suitable determination of the program of valve closure can avoid water calumn seperationand confine the waterhammer pressure in a limited range.
出处
《武汉水利电力大学学报》
CSCD
1995年第1期8-14,共7页
Engineering Journal of Wuhan University
关键词
调压井
泵
水锤
抽水系统
数学模型
pumping system
hydraulic transient
surge shaft
controllable valve
surge
