Nested First Flush Diverter With Spring-Sealed Retention Chamber
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Solution Overview
Problem
Existing first flush diverter systems for rainwater collection require manual operation or slow drainage and are limited by physical size, necessitating multiple collection chambers for large roof and gutter systems, which complicates the separation of contaminants from clean rainwater.
Innovation Solution
A first flush diverter system with a retention chamber housed within a flush chamber, featuring a spring-biased retention chamber that seals when filled with a predetermined volume of fluid, allowing for automatic diversion of contaminants and eliminating the need for manual drainage and large storage containers, with adjustable flow rates through grommets for optimized performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing first flush diverter systems use vertical collection chambers with floats or valves, then rainwater quality is improved by separating initial contaminated flow, but the system requires manual operation or slow drainage and needs large physical space with multiple chambers for large roof systems
Solution Approach 1:
The retention chamber is nested within the flush chamber, creating a compact nested structure where the retention chamber sits inside the flush chamber. This nesting arrangement allows the system to maintain the functionality of separate collection chambers while significantly reducing the overall physical footprint and eliminating the need for multiple external chambers.
Solution Approach 2:
The patent merges the retention chamber and flush chamber into a single integrated unit with shared walls and coordinated sealing mechanisms. The skirt seal of the retention chamber engages with the flush chamber opening, creating a unified system that combines the contaminant retention function with the flush function in one compact assembly.
2Quantity of substance
If multiple vertical collection chambers are used for large roof and gutter systems, then adequate flush volume is achieved, but the system becomes more complex and requires more physical space
Solution Approach 1:
The nested configuration allows the retention chamber to be housed within the flush chamber, effectively creating one compact unit that provides the combined capacity of what would traditionally require multiple separate chambers. This single nested unit can handle the flush volume requirements for large roof systems without needing multiple external chambers.
Solution Approach 2:
The invention transitions from a vertical stacking arrangement of multiple chambers to a nested configuration that utilizes internal space more efficiently. By placing the retention chamber inside the flush chamber, the system maximizes the use of available volume in a single footprint, effectively scaling the flush capacity without proportionally increasing the physical footprint.
3Ease of manufacture
If collection chambers are designed with fixed physical sizes, then manufacturing is simplified, but the system cannot be easily adjusted for different roof sizes and catchment areas
Solution Approach 1:
The patent introduces adjustable components including removable baffle plates with varying aperture sizes and interchangeable grommets in the receiving and draining apertures. These dynamic elements allow the system to be easily reconfigured for different roof sizes and catchment areas without requiring custom-manufactured chambers, thus maintaining manufacturing simplicity while achieving high adaptability.
Solution Approach 2:
The system allows modification of flow parameters by changing the size and configuration of baffle plate apertures and grommet openings. By adjusting these parameters, the same basic chamber design can be optimized for different rainfall intensities, roof areas, and contaminant loads, providing versatility without requiring multiple fixed-size chamber designs.
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
Enables efficient separation of contaminants from rainwater without manual intervention, allowing for larger roof systems to be managed with fewer components, ensuring clean rainwater is directed to storage tanks while contaminants are diverted, and allowing for adjustable first flush volumes based on catchment area size.
Implementation Method 1
the retention chamber is configured to engageably seal the opening when the retention chamber contains the predetermined volume of fluid
Implementation Method 2
the retention chamber is spring biased away from sealing the opening
Implementation Method 3
the grommet for receiving fluid is sized to determine a rate of flow into the retention chamber for receiving the predetermined volume of fluid
Data Source
AI summary
A first flush diverter system, the system comprising an inlet supplying a fluid, a flush chamber comprising an opening through which fluid can pass, a retention chamber for containing a predetermined volume of fluid, and an outlet for conveying overflow fluid. The retention chamber is housed within the flush chamber, the retention chamber comprises a receiving aperture for receiving the fluid, and the retention chamber is configured to engageably seal the opening when the retention chamber contains the predetermined volume of fluid. The first flush diverter system overcomes limitations of flush storage containers, including the requirement to drain said flush storage containers.