Title:
WATER PURIFICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/153325
Kind Code:
A1
Abstract:
This water purification system comprises: a raw water supply unit 11 including at least groundwater; a purified water supply path 61 for supplying, to a second reverse osmosis membrane device 51, purified water that exits from a first reverse osmosis membrane device 21; a first outlet flow path 121 through which flows the purified water that exits from the first reverse osmosis membrane device; a second outlet flow path 122 through which flows concentrated water that exits from the reverse osmosis membrane device; electromagnetic valves 123a, 123b (separation/connection means) for cutting off the first outlet flow path in normal circumstances and allowing communication with the first outlet flow path in abnormal circumstances; water-sending pump electromagnetic valves 124a, 124b (separation/connection means) for cutting off the second outlet flow path in normal circumstances and allowing communication with the second outlet flow path in abnormal circumstances; a water-sending pump 62 (purified water supply path separation/connection means) for allowing communication with the purified water supply path in normal circumstances and cutting off the purified water supply path in abnormal circumstances; and household power-generating equipment 131 for supplying electric power to an electrical appliance provided in a section leading from the raw water supply unit to the purified water supply path.
Inventors:
KOBAYAKAWA KATSUFUMI (JP)
Application Number:
PCT/JP2023/003541
Publication Date:
August 17, 2023
Filing Date:
February 03, 2023
Export Citation:
Assignee:
WATERPOINT INC (JP)
International Classes:
B01D61/08; B01D61/44; C02F1/44; C02F1/469; E03B1/02; E03B3/08
Domestic Patent References:
| WO2014133101A1 | 2014-09-04 |
Foreign References:
| JP2020163348A | 2020-10-08 | |||
| JP2014108422A | 2014-06-12 | |||
| JPH057873A | 1993-01-19 |
Attorney, Agent or Firm:
ISEKI Katsumori et al. (JP)
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