公开(公告)号：US20240342701A1

公开(公告)日：2024-10-17

申请号：US18294958

申请日：2022-07-12

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Naoki TSUCHIDA ,  Hiroki MURASE ,  Yui MATSUMOTO ,  Hiroki ISHIKAWA ,  Ayaka NAGATA ,  Minato KATO ,  Yuko MARUO ,  Masahiko SHIOI

IPC分类号： B01J49/85 ,  B01J39/07 ,  B01J41/07 ,  B01J47/028 ,  C02F1/42 ,  C25B15/08

CPC分类号： B01J49/85 ,  B01J39/07 ,  B01J41/07 ,  B01J47/028 ,  C02F1/42 ,  C25B15/081 ,  C02F2001/422 ,  C02F2001/425 ,  C02F2201/002 ,  C02F2201/4618 ,  C02F2303/16

摘要： Water softening device includes water softening tank, neutralization tank, and electrolytic tank. Electrolytic tank generates acidic electrolytic water for regenerating weakly acidic cation exchange resin and alkaline electrolytic water for regenerating weakly basic anion exchange resin. Then, water softening device includes an acidic electrolytic water circulation flow path that circulates the acidic electrolytic water through electrolytic tank, first discharge port, water softening tank, and first water intake port in the stated order, and an alkaline electrolytic water circulation flow path that circulates the alkaline electrolytic water through electrolytic tank, second discharge port, neutralization tank, and second water intake port in the stated order.

公开(公告)号：US20240002263A1

公开(公告)日：2024-01-04

申请号：US18254114

申请日：2021-11-10

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Hiroki ISHIKAWA ,  Ayaka NAGATA ,  Risako KOIKE ,  Yui MATSUMOTO ,  Hiroki MURASE ,  Minato KATO ,  Yohsuke HAMADA ,  Yuko MARUO ,  Hiroshi YANO ,  Yoshihiro SAKAGUCHI

IPC分类号： C02F1/42 ,  C02F1/461 ,  C02F1/00 ,  B01J39/07 ,  B01J39/18 ,  B01J41/07 ,  B01J41/12 ,  B01J47/028 ,  B01J47/14 ,  B01J49/75 ,  B01J49/53 ,  B01J49/57 ,  B01J49/85 ,  B01J49/06 ,  B01J49/07 ,  B01J49/08

CPC分类号： C02F1/42 ,  C02F1/4618 ,  C02F1/008 ,  B01J39/07 ,  B01J39/18 ,  B01J41/07 ,  B01J41/12 ,  B01J47/028 ,  B01J47/14 ,  B01J49/75 ,  B01J49/53 ,  B01J49/57 ,  B01J49/85 ,  B01J49/06 ,  B01J49/07 ,  B01J49/08 ,  C02F2001/425 ,  C02F2001/422 ,  C02F2303/16 ,  C02F2301/08 ,  C02F2201/4613 ,  C02F2201/46145 ,  C02F2303/14 ,  C02F2301/043 ,  C02F2209/42

摘要： Water softening device includes water softening tank and neutralizing tank. Water softening tank softens raw water containing a hardness component by weakly acidic cation exchange resin. Water softening tank includes first water softening tank and second water softening tank. Neutralizing tank neutralizes the pH of softened water that has passed through water softening tank by weakly basic anion exchange resin. Neutralizing tank includes first neutralizing tank and second neutralizing tank. Water softening device is configured to cause raw water containing a hardness component to flow through first water softening tank, first neutralizing tank, second water softening tank, and second neutralizing tank in this order.

公开(公告)号：US20230295015A1

公开(公告)日：2023-09-21

申请号：US18021494

申请日：2021-09-15

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Yuko MARUO ,  Hiroshi YANO

IPC分类号： C02F1/42

CPC分类号： C02F1/42 ,  C02F2001/425 ,  C02F2209/06 ,  C02F2209/40 ,  C02F2209/005 ,  C02F2303/16

摘要： Provided is a water softening device including a water softening tank that softens raw water using a weakly acidic cation exchange resin, a pH adjustment tank, an electrolytic cell that produces acidic electrolyzed water, a conductivity measurement unit S1 that measures conductivity of the raw water, a conductivity measurement unit S2 that measures conductivity of soft water, a water flow amount detecting unit, and a control unit, wherein the control unit calculates a regeneration time for the weakly acidic cation exchange resin based on an amount of the hardness component adsorbed to the weakly acidic cation exchange resin calculated from a difference between the conductivity of the raw water and the conductivity of the soft water and from the accumulated water flow amount of the raw water, and performs a regeneration treatment of the weakly acidic cation exchange resin during the regeneration time.

公开(公告)号：US20220356099A1

公开(公告)日：2022-11-10

申请号：US17621541

申请日：2020-06-18

申请人： Panasonic Intellectual Property Management Co., Ltd.

发明人： Hiroshi YANO ,  Yasunari MAEDA ,  Takuya KANDA ,  Yuko MARUO ,  Takayoshi TAKANO

IPC分类号： C02F5/02

摘要： A water softening system includes a water feed channel through which water to be treated flows, and a crystallization unit that causes a metal ion contained in the water to be treated to precipitate. Further, the water softening system includes a separation unit that separates the water to be treated having passed through the crystallization unit into a crystal obtained through precipitation by the crystallization unit and soft water. Further, the water feed channel is configured so that at least a part thereof functions as a feed channel being a pressure application system in a substantially sealed state, and the crystallization unit and the separation unit are connected to parts corresponding to the feed channel being a pressure application system in a substantially sealed state in the water feed channel.