Retrofitting Rectangular Filters in Pool Spa Housings
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current pool and spa filters with cylindrical cartridges inefficiently utilize space within filter housings, leading to dead space and reduced filtration performance, necessitating a design that increases filtration surface area and efficiency while being easy to maintain and replace.
Innovation Solution
The introduction of a filter assembly with rectangular or wedge-shaped filter elements and an adaptor device that transforms conventional cylindrical filter systems into multi-filter element systems, optimizing space and enhancing filtration efficiency by reducing dead space within the filter housing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If cylindrical filter cartridges are used in filter housings, then the filter system is simple to manufacture and install, but the filtration surface area is reduced due to dead space within the housing
Solution Approach 1:
The filter assembly is segmented into multiple cylindrical filter cartridges arranged in parallel within the filter housing. Each cartridge operates independently, allowing the system to achieve greater total filtration surface area while maintaining simplicity through modular design. The segmentation enables efficient space utilization by eliminating dead space between single large filters.
Solution Approach 2:
Multiple filter cartridges are nested or arranged within the filter housing in a compact configuration that minimizes dead space. The cartridges are positioned to maximize the use of available housing volume while maintaining proper flow paths and access for maintenance.
2Productivity
If four cylindrical filter cartridges are used to increase filtration surface area, then filtering efficiency improves, but unused dead space is created within the filter housing
Solution Approach 1:
The filter housing and cartridge arrangement utilize asymmetric positioning to optimize space utilization. Rather than symmetric circular arrangements that leave gaps, the cartridges are positioned asymmetrically to fill dead space areas, maximizing the productive use of housing volume while maintaining filtration efficiency.
3Area of moving object
If a single cylindrical filter cartridge is used, then the filter system is simple to operate and maintain, but the filtration surface area is insufficient for high efficiency filtering
Solution Approach 1:
The filtration system is divided into multiple independent cylindrical cartridges, each providing a portion of the total filtration surface area. This segmentation allows individual cartridges to be removed and maintained separately, preserving ease of operation while achieving the required total filtration area through the combined surface area of multiple units.
Solution Approach 2:
The filter housing and support structure are designed with universal compatibility to accommodate multiple cylindrical cartridges of standard dimensions. This multi-functionality allows the same housing design to achieve different total filtration areas by simply changing the number or size of cartridges, maintaining operational simplicity while scaling filtration capacity.
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 significantly increases filtration surface area and efficiency, reduces maintenance and energy costs, and allows for the same or greater filtration volume in a smaller housing, effectively addressing the limitations of cylindrical filter systems.
Implementation Method 1
The cartridge filter element, an aquatic version of the pleated filters traps dirt and particles of 25-100 microns or larger in size
Data Source
AI summary
An adaptor device for retrofitting in a filter housing is disclosed. The adaptor device allows the filter to be retrofitted with a plurality of filter elements, thereby improving its filtering efficiency.