发明名称 |
REVERSE OSMOSIS MEMBRANE SEPARATION DEVICE |
摘要 |
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.
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申请公布号 |
US2013068674(A1) |
申请公布日期 |
2013.03.21 |
申请号 |
US201213608249 |
申请日期 |
2012.09.10 |
申请人 |
MANABE ATSUYUKI;WATANABE HAYATO;NOGUCHI YUKIO;MIURA CO., LTD. |
发明人 |
MANABE ATSUYUKI;WATANABE HAYATO;NOGUCHI YUKIO |
分类号 |
B01D61/12 |
主分类号 |
B01D61/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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