单级泵站不同机组流量分配的优化研究

调水工程中泵站建成后,在不同的时期承担不同的调水任务,为了完成各种调水任务,往往使水泵在不同的工况点运行。基于离散的单级泵站运行工况点,对泵站的流量分配进行了优化研究;在满足水泵流量、扬程和各种水力学条件的约束下,以泵站整体效率最高为目标函数,基于一些工况进行了不同机组流量分配的对比研究,建立了流量优化分配数学模型,得出了各个工况点下泵站内机组流量分配的最优组合。

Optimization of flow distribution of different units in a single2stage pumping station

After the pumping st ation of the w ater tr ansfer pro ject is built, it may car ry o n different water transfer tasks at differ2 ent times. In o rder to finish w ater transfer tasks, the pumping stat ion operates under different w or king conditio ns. Based on the discr et e w or king points of a sing le2stag e pumping station, flow distr ibution of the pump statio n was optimized. T o achieve the maximum efficiency of the pumping statio n sy st em, w e established the flow dist ribution o ptimization mo del under the con2 str aints of pump flow, pump assembly head, and number of o per ating units. Flow dist ributio ns of different units w ere compared under sev eral wo rking co nditions, and the optimal combination o f flow distr ibution o f different units in a sing le2stag e pumping stat ion was o btained.