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    • 5. 发明授权
    • Reverse osmosis membrane separation device
    • 反渗透膜分离装置
    • US09370746B2
    • 2016-06-21
    • US13608249
    • 2012-09-10
    • Atsuyuki ManabeHayato WatanabeYukio Noguchi
    • Atsuyuki ManabeHayato WatanabeYukio Noguchi
    • B01D61/12C02F1/44B01D61/02
    • B01D61/12B01D61/025B01D2311/10B01D2311/14B01D2311/16B01D2311/243B01D2311/246C02F1/441C02F2209/02
    • A reverse osmosis membrane separation device includes: a reverse osmosis membrane module; a flow rate detecting unit configured to detect a flow rate of permeate water to output a detected flow rate value corresponding to the flow rate; a pressure pump configured to be driven at a rotation speed corresponding to an input drive frequency and to feed supply water to the reverse osmosis membrane module; an inverter configured to output a drive frequency corresponding to an input current value signal to the pressure pump; and a control unit configured to calculate a drive frequency of the pressure pump by a velocity type digital PID algorithm, such that a detected flow rate value output from the flow rate detecting unit becomes a target flow rate value that is set in advance to output a current value signal corresponding to a calculation value of the drive frequency to the inverter.
    • 反渗透膜分离装置包括:反渗透膜组件; 流量检测单元,被配置为检测渗透水的流量,以输出与流量对应的检测流量值; 压力泵,其构造成以与输入驱动频率对应的转速驱动,并将供水供给到所述反渗透膜组件; 反相器,被配置为将对应于输入电流值信号的驱动频率输出到所述压力泵; 以及控制单元,被配置为通过速度型数字PID算法来计算压力泵的驱动频率,使得从流量检测单元输出的检测流量值成为预先设定的目标流量值,以输出 电流值信号对应于到逆变器的驱动频率的计算值。