Rotating Water Purifier Filter Configuration
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Solution Overview
Problem
The existing water purifiers face challenges in maintaining long-term water purification capability due to the limitations in backwashing effectiveness and filter material utilization, particularly when tap water contains high amounts of impurities.
Innovation Solution
A water purifier design that switches between parallel and serial filter material modes by rotating the water purification main body, utilizing two filter materials for both purification and backwashing, ensuring effective impurity capture and extended filter life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single filter material is used for water purification, then the device structure is simple, but the filter material becomes saturated with impurities quickly and requires frequent replacement
Solution Approach 1:
The filter material is divided into multiple segments (first filter material and second filter material) arranged in series. Each segment captures a portion of the impurities, distributing the filtration load and extending the overall service life of the filter system while maintaining a relatively simple device structure.
Solution Approach 2:
The system implements periodic backwashing where the flow direction is reversed to clean the filter materials. By alternating between filtration mode and backwashing mode, the filter materials are regularly regenerated, extending their service life without requiring frequent replacement.
2Ease of operation
If backwashing is performed with tap water containing impurities, then the backwashing process is simple, but the backwashing effectiveness is reduced when impurity content is high
Solution Approach 1:
The second filter material acts as an intermediary that pre-cleans the tap water before it is used for backwashing the first filter material. This intermediary filtration step removes impurities from the backwashing water, ensuring effective backwashing even when tap water contains high amounts of impurities, while maintaining simple operation.
3Ease of operation
If filter material is not regularly cleaned, then the device operation is simple, but the water purification capability deteriorates over time
Solution Approach 1:
The system implements self-service backwashing where the filtration system automatically regenerates its own filter materials by reversing the flow direction. The filtered water from the second filter material is used to clean the first filter material, allowing the system to maintain its purification capability without requiring external intervention or complex operation.
Solution Approach 2:
The system performs periodic backwashing operations to regularly clean the filter materials. By alternating between filtration and backwashing modes, the system maintains consistent water purification capability over time without requiring frequent manual maintenance or complex operational procedures.
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
This design maintains high water purification and backwashing capabilities over a longer period by evenly distributing impurity capture across both filter materials, reducing the need for frequent replacements and enhancing overall performance.
Implementation Method 1
a first filter material 25 disposed between the first flow passage P21 and the second flow passage P22, and a second filter material 26 disposed between the third flow passage P23 and the second flow passage P22
Implementation Method 2
cleansing (backwashing) the filter material by causing tap water to flow in the opposite direction
Data Source
AI summary
The present invention provides a water purifier, the water purification capability of which can be maintained over a long period of time. The water purifier 1 has: an attachment main body 10 that has an inflow passage P11, into which tap water flows from an inlet 11, and outflow passages P12 and P13 communicating with outlets 12 and 13; and a water purification main body 20 that has a first flow passage P21, a second flow passage P22, a third flow passage P23, a first filter material 25 between the first flow passage P21 and the second flow passage P22, and a second filter material 26 between the third flow passage P23 and the second flow passage P22 and is rotatably mounted onto the attachment main body 10. During a parallel filter material mode, the first flow passage P21 and the third flow passage P23 communicate with the inflow passage P11 and the second flow passage P22 communicates with the outflow passage P12. During a serial filter material mode, the third flow passage P23 or the first flow passage P21 communicates with the inflow passage P11 and the first flow passage P21 or the third flow passage P23 communicates with the outflow passage P13.