Filtering Device With Segmented Cleaning Chamber

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Solution Overview

Problem

Existing filter devices face issues with clogging, require cumbersome cleaning processes, and often necessitate disposable membranes, leading to increased costs and inefficiencies in removing minute matters and light waste from fluids.

Innovation Solution

A fluid purification system with a filter device that includes a filtering chamber and a cleaning portion, where filter pieces are accumulated for filtering and then dispersed for cleaning, utilizing stirring means to facilitate effective cleaning without disassembly or replacement, and a centrifugal separator for reliable removal of minute matters.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If a filter membrane is used to remove minute matters, then filtering accuracy is improved, but the filter membrane becomes clogged and requires frequent cleaning or replacement

Engineering Contradiction:
Improvefiltering accuracyVSAvoidfilter membrane clogging
Core Design Contradiction:
Measurement precisionVSReliability

Solution Approach 1:

The filter device is divided into two independent chambers: a filtering chamber containing the filter membrane for accurate filtration, and a cleaning chamber for washing the membrane. This segmentation allows the filtering function and cleaning function to operate independently, preventing clogging from affecting filtering accuracy while enabling easy membrane maintenance without disassembly.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A cleaning liquid circulation system acts as an intermediary between the filtering chamber and the external environment. The cleaning liquid flows through the filter membrane from the cleaning chamber, removing accumulated particles without requiring disassembly. This intermediary mechanism solves the contradiction by providing a reliable cleaning path that maintains filtering accuracy while preventing clogging.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If the filter device is disassembled to clean the filter membrane, then cleaning effectiveness is improved, but operational complexity increases

Engineering Contradiction:
Improvecleaning effectivenessVSAvoiddisassembly requirement
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The cleaning chamber and filtering chamber are merged into a single integrated device body with a partition wall. The cleaning chamber contains all necessary cleaning components (liquid supply, circulation path) and directly accesses the filter membrane through the partition wall. This merging allows effective cleaning to be performed without disassembly, eliminating the contradiction between cleaning effectiveness and operational complexity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The filter membrane performs self-cleaning by allowing cleaning liquid to pass through it from the cleaning chamber. The membrane's own structure is utilized as the cleaning path, eliminating the need for external disassembly operations. This self-service mechanism resolves the contradiction by making the membrane accessible for cleaning while maintaining the integrity of the overall device structure.

Inventive Principle:
Principle #25Self-service

3Reliability

If disposable filter membranes are used to avoid clogging, then reliability is improved, but operational cost increases

Engineering Contradiction:
Improvefiltering performanceVSAvoidfilter membrane cost
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

Instead of discarding the filter membrane after use, the device recovers it by enabling repeated cleaning cycles. The cleaning chamber allows the membrane to be washed and reused multiple times while maintaining its filtering performance. This recovery mechanism resolves the contradiction by preserving the membrane's reliability while eliminating the need for continuous replacement, thereby reducing operational costs.

Inventive Principle:
Principle #34Discarding and recovering

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables easy reuse of filter pieces, efficient filtering and cleaning without replacement, and reliable removal of minute matters, including light waste, while maintaining low costs and improved filtering accuracy.

Implementation Method 1

a filtering portion (22) arranged inside of the cylindrical case body along a cylindrical axis direction for filtering the liquid by accumulating a plurality of filter pieces

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Implementation Method 2

The invention further provides a device which includes stirring means which performs stirring when the plurality of filter pieces are dispersed to be cleaned

Methodology Applied
Scientific EffectStirring: Stirring

Implementation Method 3

the plurality of filter pieces are dispersed in the cleaning portion to be cleaned by the supplied liquid

Methodology Applied
Scientific EffectWashing:

Data Source

PatentEP3028757B1Filtering device and fluid purification system
Publication Date: 2021.04.07 INDUSTRIA CO LTD(JP)
  • EP3028757B1 patent drawingFigure 1(a)~1(b)
  • EP3028757B1 patent drawingFigure 2(a)~2(b)
  • EP3028757B1 patent drawingFigure 3(a)~3(b)

AI summary

This invention provides a filter device and a fluid purification system which can reliably remove minute matters, can be cleaned in a simple manner instead of being replaced, and are low cost. Disclosed is a filter device 50 which filters a liquid to remove minute matters mixed in the liquid. The filter device 50 includes a filtering chamber for filtering the liquid. The filtering chamber stores a plurality of filter pieces 12, and while the filter pieces 12 are accumulated to filter the liquid, the filter pieces 12 are dispersed to be cleaned. The filtering chamber has a portion 31 in which the filter pieces 12 are accumulated to filter the liquid and a portion 32 in which the filter pieces 12 are dispersed to be cleaned, and moving means 33 moving the filter pieces 12 is provided between the filtering portion 31 and the cleaning portion 32.