Title:
WATER SOFTENING DEVICE
Document Type and Number:
Japanese Patent JP2023110147
Kind Code:
A
Abstract:
To provide a water softening device which discharges a hardness component in a device at an appropriate timing, and can shorten a time required for regeneration treatment of the water softening device.SOLUTION: A water softening device 1 includes a water softening tank 3, a neutralization tank 4, an electrolytic cell 12, a water feed pump 19, and a current value detection part 18. The water softening tank 3 softens raw water containing a hardness component by a weakly acidic cation-exchange resin 10. The neutralization tank 4 neutralizes a pH of the softened water having passed through the water softening tank by a weakly basic anion-exchange resin 11. The electrolytic cell 12 generates acidic electrolytic water for regenerating the weakly acidic cation-exchange resin 10 of the water softening tank 3, and alkaline electrolytic water for regenerating the weakly basic anion-exchange resin 11 of the neutralization tank 4. When a current value of the water feed pump 19 detected by the current value detection part 18 is less than a predetermined value during regeneration treatment, the water softening device 1 stops the regeneration treatment, and performs hardness component discharge treatment of discharging the hardness component in the device to the outside of the device.SELECTED DRAWING: Figure 1
Inventors:
LU YUJUN
MURASE HIROKI
MURASE HIROKI
Application Number:
JP2022011393A
Publication Date:
August 09, 2023
Filing Date:
January 28, 2022
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
C02F1/42; B01J49/08; B01J49/53; B01J49/57; B01J49/85; C02F1/461
Attorney, Agent or Firm:
Kenji Kamada
Kenji Maeda
Kenji Maeda