水电能源科学

在泵站开机台数确定时，不同的开机组合会造成泵站进水系统的流态出现差异。选择非最优开机组合可能导致进水系统出现不良流态，进而导致泵站效率降低，甚至影响工程安全。为此，以邓楼泵站为研究对象，采用计算流体力学方法，建立进水系统的三维数学模型，结合衡量进水流态优劣的评价指标与前池、进水池的流场图，探究典型工况下的最优开机组合。研究结果表明，在泵组开机台数相同时，开启位置居中的机组优于开启两侧机组，开启相邻机组普遍优于开启间隔机组。根据全部开机组合模拟结果提出不同开机台数时的最优开机组合，为泵站优化调度提供了合理的开机决策参考。

When determining the number of pump stations to be started up, different start-up combinations can cause differences in the flow state of the inlet system of the pump station. Choosing a non-optimal start-up combination may result in poor flow conditions in the inlet system, leading to lower efficiency of pump station and even affecting engineering safety. Therefore, this article takes Denglou Pump Station as the research object, computational fluid dynamics methods is used to establish a three-dimensional mathematical model of the inlet system. Combined the indicators to measure the quality of the inlet flow state with the flow field diagrams of the forebay and inlet pool, the optimal start-up combination under typical working conditions is explored. The research results show that when the number of pump units is the same, the unit with the center opening position is better than the units on both sides, and opening adjacent units is generally better than opening interval units. Based on the simulation results of all start-up combinations, the optimal start-up combination for different start-up numbers is proposed, providing a reasonable start-up decision reference for pump station optimization scheduling.