US 12,264,093 B2
Ion removal system
Takuya Kanda, Kyoto (JP); Ayane Takehisa, Nara (JP); Yasunari Maeda, Osaka (JP); and Tomohiro Akita, Osaka (JP)
Assigned to Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Appl. No. 17/629,911
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
PCT Filed May 29, 2020, PCT No. PCT/JP2020/021359
§ 371(c)(1), (2) Date Jan. 25, 2022,
PCT Pub. No. WO2021/019892, PCT Pub. Date Feb. 4, 2021.
Claims priority of application No. 2019-139353 (JP), filed on Jul. 30, 2019.
Prior Publication US 2022/0298044 A1, Sep. 22, 2022
Int. Cl. C02F 5/02 (2023.01); C02F 1/461 (2023.01)
CPC C02F 5/02 (2013.01) [C02F 1/46104 (2013.01); C02F 1/4618 (2013.01); C02F 2001/46152 (2013.01); C02F 2201/4611 (2013.01); C02F 2201/46115 (2013.01); C02F 2303/26 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An ion removal system comprising:
an electrolysis device configured to generate alkaline water and acidic water by electrolysis;
a first flow path and a second flow path through which the alkaline water and the acidic water generated by the electrolysis device are alternately allowed to flow;
a hard water flow path connected to the electrolysis device to supply the electrolysis device with hard water; and
a fine bubble generation device configured to generate fine bubbles in a flow path upstream or downstream of the electrolysis device,
wherein a first flow-rate adjustment valve is connected to the first flow path, and a second flow-rate adjustment valve is connected to the second flow path, and
further comprising a controller, wherein
the controller controls the electrolysis device to perform a first mode of allowing the alkaline water to flow through the first flow path and allowing the acidic water to flow through the second flow path, and a second mode of allowing the acidic water to flow through the first flow path and allowing the alkaline water to flow through the second flow path, and
an opening degree of the first flow-rate adjustment valve is set to be smaller in the second mode than in the first mode, and an opening degree of the second flow-rate adjustment valve is set to be smaller in the first mode than in the second mode.