Pond Water Filter Cutting Member Adherence
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Solution Overview
Problem
Existing water filter systems for ponds and aquaria face inefficiencies due to the accumulation of debris, which reduces filter media efficiency and requires time-consuming cleaning methods that often leave elements adhered to the filter chamber, leading to reduced filtering properties.
Innovation Solution
A water filter system with movable cutting members, including filamentous elements and paddles, that break the adherence of filter media to the chamber walls and agitate the media to separate clumped elements, utilizing a movement mechanism such as a rotatable shaft or magnetic attraction to facilitate cleaning without physical contact, allowing for effective dislodging and separation of filter elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If discrete filter media elements are used, then filtering efficiency is improved, but cleaning difficulty increases due to elements adhering to chamber walls and clumping together
Solution Approach 1:
The cutting member is activated before the main cleaning process to preliminarily break the adherence of filter media elements to the chamber walls. This preliminary action prevents elements from forming difficult-to-remove clumps during subsequent cleaning operations, thereby maintaining filtering efficiency while reducing cleaning difficulty.
Solution Approach 2:
The cutting member acts as an intermediary tool between the filter media elements and the chamber walls. It mechanically breaks the adhesion bonds forming between elements and surfaces, facilitating easier removal and cleaning of discrete filter elements without compromising their filtering performance.
2Productivity
If reverse flow cleaning is used, then some cleaning effect is achieved, but elements remain adhered to interior walls creating seeding points
Solution Approach 1:
The cutting member performs a preliminary breaking action on adhered elements before reverse flow cleaning. This preliminary mechanical disruption removes elements from interior wall surfaces, eliminating seeding points that would otherwise cause re-adhesion during or after reverse flow cleaning, thus maintaining filtering performance while achieving thorough cleaning.
Solution Approach 2:
The invention replaces or supplements the purely hydraulic reverse flow cleaning mechanism with a mechanical cutting action. The cutting member physically breaks adhesion bonds that fluid flow cannot overcome, ensuring complete removal of adhered elements and preventing re-adhesion, thereby maintaining filtering performance.
3Ease of operation
If paddles are rotated within the filter chamber, then partial break-up of element blocks is achieved, but paddles become embedded in the block reducing effectiveness
Solution Approach 1:
Instead of rotating paddles within the filter media block (which causes embedding), the cutting member is positioned to cut along the interface between the filter media and chamber walls. This inverted approach - cutting from the outside in rather than stirring from the inside - prevents embedding while achieving effective block break-up, simplifying the cleaning mechanism.
Solution Approach 2:
The cutting member is extracted from the conventional paddle stirring concept and repositioned to operate at the chamber wall interface. This extraction allows the cutting action to occur where it is most effective - at the adherence points - without the cutting member becoming embedded in the filter media block, thereby reducing mechanism complexity.
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 system efficiently breaks the adherence of filter media to the chamber surfaces and separates clumped elements, improving filter efficiency and reducing the time required for cleaning, thereby maintaining effective filtration performance.
Implementation Method 1
a first movable cutting member provided substantially immediately adjacent the interior surface of the wall of the chamber for movement across the surface of the interior wall to break the adherence of filter media to the interior wall
Implementation Method 2
utilizing a movement mechanism such as a rotatable shaft or magnetic attraction to facilitate cleaning without physical contact
Data Source
AI summary
Water filters which comprise a multitude of discrete filter media elements in a chamber require periodic cleaning. However, the elements tend to become adhered to one another and to the interior surface of the chamber. The invention provides a water filter for use with ponds, comprising a filter chamber for containing filter media, and a first movable cutting member provided substantially immediately adjacent the interior wall of the chamber for movement across the surface of the interior surface of the wall to break the adherence of filter media to the interior wall.