Modular Rainwater Strainer with Reinforced Mesh Filter
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Solution Overview
Problem
Existing rainwater harvesting systems often fail to effectively filter debris and mosquitoes from rainwater, leading to contaminated water in barrels and the need for chemical treatments.
Innovation Solution
A modular rainwater filter system comprising a strainer with interchangeable mesh and reinforcing web, designed to fit various containers, which filters debris and mosquitoes, allowing for customizable filtration with components like sand and granular activated carbon, and is easy to assemble and maintain.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a simple open-top container is used for rainwater harvesting, then the system is simple and inexpensive, but debris and mosquitoes can enter the container contaminating the water
Solution Approach 1:
The filter system is divided into separate modular components: a strainer assembly with removable mesh filter, reinforcing web, and retainer ring. This segmentation allows the filter to be easily installed in simple containers while providing effective debris and mosquito filtration without complicating the overall system.
Solution Approach 2:
The strainer assembly acts as an intermediary component between the rainwater downspout and the collection container. It provides a removable filter mechanism that prevents debris and mosquitoes from entering the container while maintaining system simplicity through its modular design.
2Object-affected harmful factors
If a fine mesh filter is used to prevent mosquito entry, then mosquito and egg filtration is improved, but the mesh becomes clogged more easily and requires frequent cleaning
Solution Approach 1:
The filter system transitions from a static permanent filter to a dynamic removable filter. The mesh filter can be easily removed, cleaned, and replaced as needed, allowing users to maintain effective mosquito filtration without being constrained by a fixed filter structure that would clog more easily.
Solution Approach 2:
The removable mesh filter allows users to periodically remove and clean the filter media, recovering its filtration capability. This enables continued effective mosquito and egg filtration while managing clogging through regular maintenance cycles.
3Adaptability or versatility
If the strainer is designed to fit various container types, then adaptability is improved, but the strainer design becomes more complex
Solution Approach 1:
The strainer assembly is designed with universal features that allow it to fit multiple container types. The outwardly extending flange and inwardly directed flange configuration provides a standardized interface that can accommodate various container diameters and lid types, achieving versatility without excessive design complexity.
Solution Approach 2:
The strainer is divided into modular segments including the flanges, reinforcing web, mesh filter, and retainer ring. This segmentation allows each component to be optimized independently while maintaining overall simplicity, enabling adaptability to different containers without complicating the individual parts.
4Object-affected harmful factors
If the mesh is made very fine to filter debris, then filtration effectiveness is improved, but the mesh strength decreases and it becomes more prone to tearing
Solution Approach 1:
The filter system combines a fine mesh filter with a reinforcing web in a composite structure. The reinforcing web provides tensile strength and tear resistance to the fine mesh, allowing the mesh to be made very fine for effective debris filtration while preventing it from tearing during operation.
Solution Approach 2:
The combination of fine mesh and reinforcing web creates a composite filter assembly where the reinforcing web compensates for the weakness of fine mesh material. This allows the system to achieve both fine debris filtration and adequate structural strength.
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 filters rainwater, preventing debris and mosquito entry, allowing for cleaner water collection without the need for chemicals, and is cost-effective and adaptable to different needs and conditions.
Implementation Method 1
a mesh also located above and supported by the lower flange, and a retainer ring located above and supported by the lower flange and adapted to be secured thereto to removably hold the mesh and the reinforcing web therebetween
Implementation Method 2
The reinforcing web is sufficiently rigid so as to reinforce the mesh and to provide additional structure to handle heavy water flows
Data Source
AI summary
A filter for rainwater harvesting forms part of a rainwater catchment system, and includes a container with a lid on its top end, an opening formed in the lid, and a strainer sized and shaped to accommodate the edge of the lid that defines the opening. The strainer includes an upper outwardly directed flange which engages the lid, a vertical side wall that extends downwardly from the upper flange, a lower inwardly directed flange, a reinforcing web supported by the lower flange, a mesh also located above and supported by the lower flange, and a retainer ring located above and supported by the lower flange and adapted to be secured thereto to removably hold the mesh and the reinforcing web therebetween. When the strainer is placed within the opening in the lid and the container is located such that the opening is in the flow path of a rainwater downspout, the strainer allows the passage therethrough of rainwater and filters debris from the rainwater to thereby enable the rainwater to be harvested.