Water purifying system and backwash module control method thereof
AssigneeDoosan Heavy Industries Construction Co., Ltd
InventorsWoo Nyoung Lee, Sung Won Park
Life of this patent
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Abstract
Disclosed herein is a water purifying system, including: a raw water tank configured to store raw water; a filter unit configured to include a plurality of filtration modules for purifying the raw water and a plurality of valves for feeding or cutting off the raw water; a raw water pump configured to feed the raw water from the raw water tank to the filter unit; and a backwash module configured to feed backwash water to the filter unit, in which some of permeate water permeated by the filter unit is fed to the backwash module to be used as the backwash water and a feed pressure of the backwash water is fed by the raw water pump.
Claims20
A water purifying system, comprising:
- a raw water tank configured to store raw water;
- a filter unit configured to include a plurality of filtration modules for purifying the raw water and a plurality of valves configured to feed or cut off the raw water;
- a raw water pump configured to feed the raw water from the raw water tank to the filter unit;
- and
- a backwash module configured to feed backwash water to the filter unit,
- wherein the raw water pump is configured to feed the raw water to the backwash module,
- the backwash module is configured to receive a portion of permeate water permeated by the filter unit, and to apply pressure to the portion of permeate water with the raw water that is fed to the backwash module such that the backwash module feeds the portion of permeate water to the filter unit as the backwash water, and
- the backwash module is configured to apply pressure to the raw water, that is fed thereto, with the portion of the permeate water, that is fed thereto, such that the backwash module feeds the raw water back to the raw water tank.
Dependencies are inferred from the claim text.