Floating Funnel Batch Drainage for High-Head Rain Barrel Overflow
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Solution Overview
Problem
Consumer rain barrel designs waste the potential energy of stored water by releasing excess water as a slow trickle, which is unusable for energy generation due to air absorption in the discharge line, requiring manual labor or external inputs for water transport.
Innovation Solution
TopSink, a floating funnel device that releases a predetermined large volume of water when the barrel reaches capacity, creating a strong 'head' in the discharge line by minimizing air entry, allowing water to flow further and potentially power a hydraulic ram pump without external inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If water is released as a slow trickle through a stand pipe overflow, then the barrel does not overflow, but the potential energy of stored water is wasted and cannot generate usable flow force
Solution Approach 1:
The overflow mechanism operates periodically rather than continuously. The float valve remains closed during most of the storage period, then opens periodically to release large volumes of water in batches. This periodic action converts the continuous low-energy trickle into discrete high-energy bursts, resolving the contradiction between energy conservation and flow force generation.
Solution Approach 2:
The system changes the flow rate parameter from a constant low value to a variable pattern with periodic high-flow bursts. By adjusting the float valve opening size and float sensitivity, the system optimizes the batch release parameters to generate sufficient head and flow force while managing the stored water energy effectively.
2Productivity
If a large volume of water is released all at once, then the head and flow force increase enabling water to move across distances and inclines, but the discharge line must be designed to handle the sudden surge
Solution Approach 1:
The discharge line and hose are pre-installed and pre-filled with water before the batch release occurs. This preliminary preparation ensures that when the float valve opens, the water can immediately flow through the pre-positioned pathway without air pockets or dry sections, reducing the complexity of handling sudden surges while maintaining high flow force.
3Quantity of substance
If the float valve opens completely to release water quickly, then the batch volume is maximized, but the valve must be designed to handle the full opening force and flow pressure
Solution Approach 1:
The float valve is designed to open partially rather than completely. By opening the valve only enough to achieve the desired batch volume (e.g., 5-10 gallons), the system avoids the excessive structural demands of a fully open valve while still generating sufficient flow force. This partial action approach balances batch volume maximization with valve strength requirements.
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 automatic movement of water across distances and inclines by maximizing the 'head' of the flow, reducing labor and external energy needs, while also reducing algae and mosquito issues by releasing water from the top, increasing the effective height of water flow.
Implementation Method 1
a float valve that floats on the water and sinks when the water reaches a predetermined level
Implementation Method 2
This stored energy is called hydrostatic pressure. Despite this rich potential energy on even small scales
Implementation Method 3
It is a device that uses the energy and weight of stored water to move that same water across a distance or over an incline, with no external input
Data Source
AI summary
TopSink is an automatic drainage device that includes a floatable funnel with a flexible discharge line connected to a discharge port on an interior of a barrel. The funnel rises with the level of the collected water and or rain until it nears the barrel's maximum capacity, when it is triggered to sink and drain out a predetermined volume of water. As the funnel sinks it continues to drain water until it is caught by at least two predetermined depth adjustable rods. The catch rods establish how much water is drained from the barrel each time capacity is reached. Water or rain continues to drain from the TopSink until the water or rain level gets to the level of the catch rods. Upon further water or rain collection, the funnel begins to float again on the surface of the water, until capacity is reached again.