并联水泵单调速优化运行研究  

Parallel Pumps Based on the One Variable-speed Optimal Operation

作　　者：汤跃[1] 赵坤[1] 阳君 李亚林[1] 王涛[1] 

机构地区：[1]江苏大学流体工程技术研究中心,江苏镇江212013

出　　处：《中国农村水利水电》2010年第10期139-141,144,共4页China Rural Water and Hydropower

基　　金：国家杰出青年科学基金项目(50825902);"十一五"国家科技支撑计划项目(2008BAF34B15-1)

摘　　要：利用最小二乘法对水泵性能曲线进行二次拟合,根据等扬程流量叠加原理建立了水泵并联运行曲线方程。对不同型号水泵配置的单调速泵站,通过建立的水泵并联调速运行方程和泵站的年供水规律,计算得到各供水指标下调速泵的调速比,可以实现完全通过改变水泵的特性来达到工况点改变的目的。The pump performance curve is fitted by the least square method.According to the principle of flow superposition at the same flow,a pump curve equation about parallel pump operation is established.To configure different types of single speed pumps,the laws on water supply which changes in different periods in pump stations are summed up and the speed ratio of the speed-governing pump is calculated under different indexes of water supply.Finally it can realize that a change in the operating point by changing the characteristics of pumps.

关 键 词：最小二乘法 性能曲线 调速比 

分 类 号：TH311[机械工程—机械制造及自动化]