Title:
WATER SOFTENING APPARATUS
Document Type and Number:
Japanese Patent JP2022116415
Kind Code:
A
Abstract:
To provide a water softening apparatus capable of reliably removing precipitates separated in a separation part in a cleaning process for separating precipitates generated in an electrolysis tank.SOLUTION: A water softening apparatus 1 has a water softening tank 3 in which raw water containing hardness components is softened by a weakly acidic cation exchange resin 10, a neutralization tank 4 in which the pH of the softened water that has passed through the water softening tank is neutralized by a weakly basic anion exchange resin 11, an electrolysis tank 12 in which acidic electrolysis water for regeneration of the weakly acidic cation exchange resin 10 and alkaline electrolysis water for regeneration of the weakly basic anion exchange resin 11, and a separation part 14 provided in the flow path connecting the electrolytic tank 12 and the neutralization tank 4 to separate precipitates caused by hardness components in the water introduced into the electrolytic tank 12. The water softening apparatus 1 performs a separation part cleaning process in which, after the regeneration process of the water softening tank 3 and the neutralization tank 4, the acidic softened water that has circulated through the water softening tank 3 is distributed to the separation part 14 and discharged outside the apparatus.SELECTED DRAWING: Figure 1
Inventors:
NAGATA AYAKA
MATSUMOTO YUI
MURASE HIROKI
KATO MINATO
ISHIKAWA DAIKI
KOIKE RISAKO
MATSUMOTO YUI
MURASE HIROKI
KATO MINATO
ISHIKAWA DAIKI
KOIKE RISAKO
Application Number:
JP2021012565A
Publication Date:
August 10, 2022
Filing Date:
January 29, 2021
Export Citation:
Assignee:
PANASONIC IP MAN CORP
International Classes:
C02F1/42; B01D35/02; B01J39/07; B01J41/07; B01J49/08; C02F1/461
Attorney, Agent or Firm:
Kenji Kamata
Koichi Nomura
Koichi Nomura