发明名称 |
DESALINATION APPARATUS AND METHOD OF CLEANING THE SAME |
摘要 |
A desalination apparatus according to the present invention includes: a pretreatment device having a pretreatment membrane that filters a turbid content contained in raw water; a reverse osmosis membrane device having a reverse osmosis membrane that reduces a salt content contained in filtrate water supplied from the pretreatment device to produce permeated water; a first control valve that is provided between a high-pressure pump mounted on a filtrate water line through which the filtrate water is supplied from the pretreatment device to the reverse osmosis membrane device and the reverse osmosis membrane device, and temporarily decreases a supply pressure of the filtrate water; and the control device that operates the first control valve to perform suck-back control by which a pressure at the entrance of the reverse osmosis membrane device is decreased in a pulse-like manner during operation.
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申请公布号 |
US2011315612(A1) |
申请公布日期 |
2011.12.29 |
申请号 |
US200913255210 |
申请日期 |
2009.08.07 |
申请人 |
KAKIGAMI HIDEMASA;ITO YOSHIAKI;TAKEUCHI KAZUHISA;MATSUI KATSUNORI;IWAHASHI HIDEO;MITSUBISHI HEAVY INDUSTRIES, LTD. |
发明人 |
KAKIGAMI HIDEMASA;ITO YOSHIAKI;TAKEUCHI KAZUHISA;MATSUI KATSUNORI;IWAHASHI HIDEO |
分类号 |
C02F1/44;B01D65/02 |
主分类号 |
C02F1/44 |
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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