Title:
WATER-PURIFYING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/030862
Kind Code:
A1
Abstract:
The present invention provides a water-purifying apparatus comprising: a reverse osmosis filter (110) for filtering raw water in a reverse osmosis type, the reverse osmosis filter (110) being divided into a filtering side (112a) and a non-filtering side (112b) with reference to a built-in reverse osmosis membrane (111); a pump unit (120) provided on a raw-water line (130) connected to the front-end side of the reverse osmosis filter (110) so as to move raw water toward the non-filtering side (112b); a purified-water discharging line (140) connected to the filtering side (112a) of the reverse osmosis filter (110) such that filtered purified-water is discharged therethrough; a purified-water extracting valve (142) provided on the purified-water discharging line (140) so as to open/close the purified-water discharging line (140); a domestic-water discharging line (150) connected to the non-filtering side (112b) of the reverse osmosis filter (110) so as to discharge unfiltered domestic water from the reserve osmosis filter (110); a domestic-water discharging valve (152) provided on the domestic-water discharging line (150) so as to open/close the domestic water-discharging line (150); and a control unit (160) for controlling operations of the pump unit (120) and the domestic-water discharging valve (152). The control unit (160) closes the domestic-water discharging valve (152) in a transient state, until the pressure difference between the front-end side of the pump unit (120) and the rear-end side thereof reaches a normal state since closure of the purified-water extracting valve (142) and initial operation of the pump unit (120).
Inventors:
MOON HYOUNG MIN (KR)
KIM CHUL HO (KR)
MOON HYUN SUK (KR)
HONG YOUNG HOON (KR)
PARK SI JUN (KR)
SHIN HYUN SOO (KR)
PARK CHAN JUNG (KR)
KIM CHUL HO (KR)
MOON HYUN SUK (KR)
HONG YOUNG HOON (KR)
PARK SI JUN (KR)
SHIN HYUN SOO (KR)
PARK CHAN JUNG (KR)
Application Number:
PCT/KR2021/009777
Publication Date:
February 10, 2022
Filing Date:
July 28, 2021
Export Citation:
Assignee:
COWAY CO LTD (KR)
International Classes:
B01D61/10; B01D61/02; B01D61/08; B01D61/12; C02F1/00; C02F1/44
Domestic Patent References:
| WO1996023733A1 | 1996-08-08 |
Foreign References:
| KR20200046342A | 2020-05-07 | |||
| KR20200006704A | 2020-01-21 | |||
| KR20190104042A | 2019-09-05 | |||
| CN105731603A | 2016-07-06 |
Attorney, Agent or Firm:
HANOL INTELLECTUAL PROPERTY & LAW (KR)
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