US 2024/0182330 A1 · ELECTRODEIONIZATION SYSTEM AND CONTROL METHOD FOR ELECTRODEIONIZATION SYSTEM

Abstract

Provided are an electrodeionization system containing multiple electrodeionization devices installed in parallel and a control method for the system. The system contains a regulator varying a flow rate of supply water to the electrodeionization devices; an adjustor adjusting, for each electrodeionization device, a flow rate of concentrated water discharged from each electrodeionization device; and a maintainer maintaining the flow rate of the concentrated water at a certain level or higher. The maintainer is installed only in a main flow path where multiple sub-flow paths are integrated and a main path where multiple sub-paths are integrated. Desalted water produced in each electrodeionization device flows through each sub-flow path while concentrated water discharged from each electrodeionization device flows through each sub-path. The electrodeionization system reduces the production cost while suppressing the occurrence of scale due to a decrease in the flow rate of supply water to each electrodeionization device.

Claims6

Dependent claims

An electrodeionization system, comprising:

a plurality of electrodeionization devices installed in parallel,
a supply water flow rate regulator that varies a flow rate of supply water to the plurality of electrodeionization devices;
a concentrated water flow rate adjustor that adjusts, for each electrodeionization device, a flow rate of concentrated water discharged from each of the plurality of electrodeionization devices;
and
a concentrated water flow rate maintainer that maintains the flow rate of the concentrated water discharged from each of the plurality of electrodeionization devices at a certain level or higher,
wherein the concentrated water flow rate maintainer is installed only in a main flow path in which a plurality of sub-flow paths are integrated and a main path in which a plurality of sub-paths are integrated, wherein desalted water produced in each of the plurality of electrodeionization devices flows through each of the plurality of sub-flow paths while concentrated water discharged from each of the plurality of electrodeionization devices flows through each of the plurality of sub-paths.

3 more elements

Dependencies are inferred from the claim text.

Electrodeionization system and control method for electrodeionization system

Life of this patent

Electrodeionization system and control method for electrodeionization system

Life of this patent

Abstract

Claims6