Filtration System

The filtration system addresses clogging issues by using a suspended filtering means with vibration and fine bubble backwash to separate cake, enhancing efficiency and reducing maintenance complexity and costs.

JP7738347B1Active Publication Date: 2025-09-12RYUKI ENG
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Patent Information

Application Number
JP2024078148
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2024-05-13
Publication Date
2025-09-12
Estimated Expiration
2044-05-13

AI Technical Summary

Technical Problem

Conventional filtration systems using RO membranes face issues with clogging due to the accumulation of foreign matter, leading to reduced filtration efficiency and potential damage from cleaning methods, and require complex maintenance that increases costs and complexity.

Method used

A filtration system with a bag-shaped filtering means suspended inside a container, utilizing vibration to fluidize adhered cake, combined with backwash water containing fine bubbles to separate and remove cake without damaging the filter, and a flexible discharge pipe to absorb vibrations, reducing system instability.

Benefits of technology

The system effectively maintains filtration efficiency by minimizing damage to the filtering means and simplifying maintenance, reducing costs and complexity while improving permeation and stability.

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Abstract

An object of the invention is to provide a filtration system in which the filtration means is less likely to be damaged during maintenance to improve the permeation of the material to be filtered when the filtration means becomes clogged. [Solution] The problem is solved by a filtration system (1) comprising a container (11) having a supply inlet (7) for a liquid to be treated (A) and a discharge outlet (6) for a treated liquid (B) obtained by filtering the liquid to be treated (A), a bag-shaped filtering means (15) provided inside the container (11) and having an opening (16), a vertically moving body (9) that moves the filtering means (15) up and down, a treated liquid discharge pipe (22) having one end connected to the opening (16) of the filtering means (15) and the other end located outside the container (11) so as to discharge the treated liquid (B) out of the container (11), and a hanging means (10) that suspends the filtering means (15) in a suspended state in the internal space of the container (11), wherein the hanging means (10) absorbs vibrations transmitted by the up and down movement of the filtering means (15), and the treated liquid discharge pipe (22) absorbs vibrations transmitted by the up and down movement of the filtering means (15).
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