Composite Filter Apparatus with Segmented Filtration Layers
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Solution Overview
Problem
Conventional filter apparatuses face high replacement costs and inefficiencies due to the need for entire filter core replacement and complex multi-layer designs, leading to unnecessary waste and elevated fabrication costs.
Innovation Solution
A composite filter apparatus with a container, a filter member, and activated carbon particles, where the filter member is divided into upper and lower receiving spaces, allowing independent replacement and filtration, and featuring a porous filter core, blocking member, and retainer plate for efficient fluid flow and material utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the filter core is configured as one-piece with multiple filter materials, then the filtration function is integrated, but the entire filter core must be replaced even if only one filter material needs substitution, resulting in high replacement cost
Solution Approach 1:
The filter core is divided into multiple independent filter elements (first filter element, second filter element, third filter element) that can be replaced independently. Each filter element contains different filter materials (fine-particle filtration layer, rude-particle filtration layer, activated carbon particles) and can be substituted separately based on their respective service lives and contamination levels, eliminating the need to replace the entire filter core.
2Reliability
If multiple filter materials are integrated into one filter core, then comprehensive filtration is achieved, but the complex multi-layer design increases fabrication cost
Solution Approach 1:
Instead of creating a complex multi-layer integrated filter core, the patent segments the filtration function into separate filter elements that are stacked sequentially. Each element handles a specific filtration stage (fine particles, rude particles, activated carbon), simplifying the manufacturing of each individual element while maintaining comprehensive filtration effectiveness.
Solution Approach 2:
The filter elements are designed to be nested within the same filter core structure, with each element containing its own filter materials and support structures. This nested arrangement allows multiple filtration functions to be achieved within a compact core while keeping each element's fabrication simple and cost-effective.
3Device complexity
If water-entry and water-exit openings are both disposed on the watering seat, then the structure is simplified, but flowing of filtered fluid out through the filter core is difficult and fluid may not be completely filtered
Solution Approach 1:
The water entry and exit functions are segmented into different locations: water-entry openings are disposed on the watering seat, while water-exit openings are disposed on the filter core itself. This segmentation creates a more effective flow path where fluid enters through the watering seat, passes through all filter elements, and exits through the filter core, ensuring complete filtration.
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
The solution enables efficient fluid purification with reduced replacement costs, independent component replacement, lower fabrication costs, and effective filtration with the ability to sterilize the fluid, while preventing activated carbon particle leakage.
Implementation Method 1
a fine-particle filtration layer 131 (such as a hollow fiber membrane)
Implementation Method 2
activated carbon particles 133 that are filled in the rude-particle filtration layer 132
Implementation Method 3
an ion exchange resin layer 134 that is coated on a surface of the rude-particle filtration layer 132
Data Source
AI summary
A composite filter apparatus includes a container with a receiving space, and top and bottom openings communicated with the receiving space. A filter member includes a filter core in the receiving space, a blocking member on a top end of the filter core, and a retainer plate on a bottom end of the filter core. The receiving space is divided by the blocking member into an upper receiving space that communicates the top opening of the container, and a lower receiving space that surrounds the filter core and that communicates the bottom opening. Activated carbon particles are filled in the upper and lower receiving spaces.