Electrodialysis machine and fluid supply frame for electrodialysis machine

The modular design of the liquid supply frame in electrodialysis devices allows for partial replacement of deformed parts, reducing costs and enhancing productivity by adapting flow path areas to match ion exchange performance.

JP7841816B2Active Publication Date: 2026-04-07POHANG IRON & STEEL CO LTD +1
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Patent Information

Application Number
JP2024537502
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-12-21
Filing Date
2022-11-03
Publication Date
2026-04-07
Estimated Expiration
2042-11-03

AI Technical Summary

Technical Problem

Conventional liquid supply frames in electrodialysis devices require complete replacement when parts of the flow path deform due to heat, leading to increased maintenance costs and reduced productivity.

Method used

A modular design for the liquid supply frame with separate upper and lower modules, each made of different materials, allowing for partial replacement of deformed parts, such as the upper module, which is prone to deformation from heat, while maintaining functionality.

Benefits of technology

Reduces maintenance costs by enabling replacement of only the deformed parts, while improving productivity through adjustable flow path areas in the lower module to match ion exchange performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The electrodialysis device includes a plurality of gaskets stacked in one direction, each of which allows a different solution to pass therethrough, a plurality of ion exchange membranes positioned between the gaskets, and a liquid supply frame positioned on one side of the gaskets and supplying the different solutions to each of the gaskets, the liquid supply frame including a central module overlapping the gaskets in the one direction, and an upper module coupled to an upper portion of the central module, communicating with the gaskets, and including a plurality of discharge flow paths through which the different solutions that have passed through the gaskets are discharged.
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Citation Information

Patent Citations

  • Electrodialysis membrane stack device

    CN113522031A

  • JP1975088749U

  • JP1989152703U

  • Electrodialysis membrane and gasket lamination system

    JP2004517709A

  • Method for producing lithium compounds

    JP2019533628A