US 12,474,723 B2
Method and apparatus for adjusting hardness of outflow water from water softening device and electronic device
Zhipeng Hao, Foshan (CN); Chenghuan Hu, Foshan (CN); Pu Qing, Foshan (CN); Bo Zhang, Foshan (CN); Ziming Gong, Foshan (CN); Rensheng Huang, Foshan (CN); Yuedong Zheng, Foshan (CN); and Yumin Liao, Foshan (CN)
Assigned to FOSHAN MIDEA CHUNGHO WATER PURIFICATION EQUIPMENT CO., LTD., Foshan (CN); and MIDEA GROUP CO., LTD., Foshan (CN)
Appl. No. 18/563,909
Filed by FOSHAN MIDEA CHUNGHO WATER PURIFICATION EQUIPMENT CO., LTD., Foshan (CN); and MIDEA GROUP CO., LTD., Foshan (CN)
PCT Filed Apr. 11, 2023, PCT No. PCT/CN2023/087669
§ 371(c)(1), (2) Date Nov. 23, 2023,
PCT Pub. No. WO2023/231586, PCT Pub. Date Dec. 7, 2023.
Claims priority of application No. 202210605780.7 (CN), filed on May 30, 2022.
Prior Publication US 2025/0103070 A1, Mar. 27, 2025
Int. Cl. G05D 11/13 (2006.01); B01F 23/40 (2022.01); B01F 35/22 (2022.01); B01F 101/00 (2022.01); C02F 1/00 (2023.01); C02F 1/42 (2023.01)
CPC G05D 11/139 (2013.01) [B01F 23/405 (2022.01); B01F 35/2206 (2022.01); B01F 35/2209 (2022.01); C02F 1/008 (2013.01); C02F 1/42 (2013.01); G05D 11/135 (2013.01); B01F 2101/305 (2022.01); C02F 2001/425 (2013.01); C02F 2209/003 (2013.01); C02F 2209/005 (2013.01); C02F 2209/055 (2013.01); C02F 2301/043 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method for adjusting hardness of outflow water from a water softening device, comprising:
determining, in response to a hardness adjustment request for the outflow water, target hardness of outflow water corresponding to the hardness adjustment request for the outflow water;
determining a water mixing ratio of soft water to raw water based on the target hardness of outflow water;
adjusting an opening degree of a water mixing unit of a water softening device based on the water mixing ratio;
obtaining current hardness of outflow water from the water softening device; and
determining an opening degree compensation value based on a difference between the current hardness of outflow water and the target hardness of outflow water, and further adjusting the opening degree of the water mixing unit based on the opening degree compensation value;
wherein the water mixing unit is configured to control the mixing of raw water and soft water in the water softening device.