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    • 38. 发明授权
    • Method and device for controlling the number of pumps to be operated
    • 用于控制要运行的泵数量的方法和装置
    • US4178132A
    • 1979-12-11
    • US751988
    • 1976-12-20
    • Atsuko ShiraishiMakoto Shioya
    • Atsuko ShiraishiMakoto Shioya
    • G05B13/00E03F5/22F04B49/06G05B11/18G05B13/02
    • E03F5/22
    • In a system for controlling the flow rate of water supplied in a multi-pump water supply system which includes a pond or reservoir for the water, a first characteristic curve representing the cumulative values of predicted load flow rates over a period of time and a second characteristic curve representing the sum of the cumulative values and the capacity of the pond are generated. Operation routes restricted as to the number of pump change-over operations are then sought so that the routes pass through the region between the first and second characteristic curves and the gradient of the portion of each operation route is changed when the operation route crosses with the first or second characteristic curve. Among the operation routes sought, there is selected an optimum operation route which has the most suitable evaluation function from the point of view of energy consumption and efficiency. The pumps are then controlled in number in response to the selected operation route.
    • 在用于控制供水的供水流量的系统中,所述多泵供水系统包括用于水的池塘或蓄水池,表示在一段时间内和第二时间段内预测的负荷流量的累积值的第一特征曲线 生成表示累积值和池塘容量之和的特征曲线。 然后寻求限制泵转换操作次数的操作路线,使得路线通过第一和第二特性曲线之间的区域,并且当操作路线与该操作路线相交时,每个操作路线的部分的坡度被改变 第一或第二特征曲线。 在寻求的运营路线中,从能耗和效率的角度,选择了最适合的评估功能的最佳运行路线。 然后响应于所选择的操作路线,数量地控制泵。