Title:
ELECTRIC DEIONIZATION DEVICE AND METHOD FOR PRODUCING DEIONIZED WATER
Document Type and Number:
WIPO Patent Application WO/2019/159870
Kind Code:
A1
Abstract:
On a plate surface of a frame 20 for a desalination chamber, a groove 26 is provided to the periphery of the frame 20, and a groove 27 connecting the groove 26 to the bottom edge of the frame 20 is provided. This electric deionization device is constructed by stacking the frame for the desalination chamber, a frame for a concentration chamber, a spacer for an anode, a spacer for a cathode, and an end plate. The desalination chamber is filled with an ion exchange resin. As the pressure in the desalination chamber increases, a portion of water in the desalination chamber flows along the plate surface of the frame 20 so as to permeate same. Since this water flows out of the electric deionization device 30 through the grooves 26, 27, the pressure in the desalination chamber is prevented from increasing excessively.
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Inventors:
KATO TERUHISA (JP)
Application Number:
PCT/JP2019/004792
Publication Date:
August 22, 2019
Filing Date:
February 12, 2019
Export Citation:
Assignee:
KURITA WATER IND LTD (JP)
International Classes:
C02F1/469; B01D61/54
Foreign References:
| JPS58132505U | 1983-09-07 | |||
| JPS62168508A | 1987-07-24 | |||
| JPS5522356A | 1980-02-18 | |||
| JPS5117241Y1 | 1976-05-10 | |||
| JP2008510600A | 2008-04-10 | |||
| JP2011177293A | 2011-09-15 | |||
| JP2016150304A | 2016-08-22 | |||
| JP2017176968A | 2017-10-05 |
Attorney, Agent or Firm:
SHIGENO, Tsuyoshi et al. (JP)
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