| CPC C02F 1/008 (2013.01) [C02F 1/003 (2013.01); C02F 1/32 (2013.01); C02F 1/461 (2013.01); C02F 2201/005 (2013.01); C02F 2209/006 (2013.01); C02F 2209/40 (2013.01); C02F 2209/44 (2013.01); C02F 2301/043 (2013.01); C02F 2303/04 (2013.01); C02F 2307/06 (2013.01)] | 15 Claims |
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1. A water purifier comprising:
a raw water flow path formed to allow raw water to flow from outside;
a first valve arranged in a water purification path connected to the raw water flow path such that the raw water from the outside passes through a water purifying filter, and opening or closing the water purification path;
a second valve arranged in a wash water flow path connected to the raw water flow path such that the raw water from the outside flows without passing through the water purifying filter, and opening or closing the wash water flow path;
a purified water valve arranged in a purified water supply tube connected to the water purification path such that purified water having passed through the water purification path is supplied to a water purifier outlet nozzle, and opening or closing the purified water supply tube;
a flow sensor arranged in a cooking water supply tube connected to the water purification path and the wash water flow path such that the purified water having passed through the water purification path or wash water having passed through the wash water flow path is supplied to a cooking water outlet nozzle, and sensing an amount of fluid flowing in the cooking water supply tube;
a drainage valve arranged in a drainage flow path branched from the cooking water supply tube such that a stagnant fluid in the cooking water supply tube is drained to the outside, and opening or closing the drainage flow path; and
a controller configured to drain the stagnant fluid in the cooking water supply tube to the outside through the drainage flow path by controlling opening or closing of the purified water valve, the first valve, the second valve, and the drainage valve based on a value of the flow amount sensed by the flow sensor for a preset period of time being equal to or less than a preset value.
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