Siphon Priming Drainage Conduit for Flash Flood Management
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Solution Overview
Problem
Conventional drainage systems are ineffective in managing flash floods due to the unpredictability of rainfall patterns caused by global warming, leading to widespread damage and economic losses, as they require pumps and extensive monitoring.
Innovation Solution
A drainage apparatus with a conduit arrangement and valve system that utilizes the siphoning effect to transfer liquid between reservoirs, eliminating the need for pumps and minimizing human intervention by creating a continuous liquid flow path and achieving equilibrium hydrostatic pressure for automatic operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If pumps are installed to transfer liquid between reservoirs, then liquid transfer capability is improved, but device complexity and maintenance requirements increase
Solution Approach 1:
The invention extracts and removes the pump component from the liquid transfer system, replacing it with a passive siphon-based conduit arrangement. This eliminates the need for mechanical pumping devices while maintaining liquid transfer capability through hydrostatic pressure differences and siphoning effects.
Solution Approach 2:
The drainage apparatus enables self-service operation by utilizing natural physical phenomena (siphoning and hydrostatic pressure) to automatically transfer liquid between reservoirs without requiring external power sources or mechanical intervention. The system primes itself and operates autonomously based on liquid level differences.
2Reliability
If pumps and extensive monitoring are used, then liquid transfer reliability is improved, but ease of operation and human intervention requirements worsen
Solution Approach 1:
The system performs self-priming and self-regulation through the controlled opening and closing of valves based on liquid level sensors. The apparatus automatically primes the conduits and maintains operation without requiring human monitoring or intervention, achieving both reliability and ease of operation.
Solution Approach 2:
The invention incorporates liquid level sensors that provide feedback to the valve control system, enabling automatic adjustment of valve positions to maintain proper liquid levels in reservoirs. This closed-loop control ensures reliable operation while eliminating the need for manual monitoring.
3Productivity
If conventional drainage canals are built wider to cope with flash floods, then drainage capacity is improved, but loss of land and infrastructure cost increase
Solution Approach 1:
The invention utilizes hydraulic principles (siphoning and hydrostatic pressure) to enable liquid transfer through enclosed conduits, allowing drainage capacity to be achieved without expanding open canal surfaces. This maintains high drainage efficiency while minimizing land area requirements.
Solution Approach 2:
The system transitions from two-dimensional surface drainage canals to three-dimensional subsurface conduit networks, enabling efficient liquid transfer through vertical and horizontal passages beneath the surface. This eliminates the need for wide surface canals while maintaining drainage capacity.
4Reliability
If the conduit arrangement is completely filled with liquid during priming, then siphon formation is improved, but air trapped in conduits causes priming difficulties
Solution Approach 1:
The system performs preliminary actions by first filling conduits partially with liquid through controlled valve operation, then gradually completing the filling process while managing air evacuation. This staged approach simplifies priming by breaking down the complex task of complete conduit filling into manageable steps.
Solution Approach 2:
The invention introduces air release valves as intermediary components that facilitate the removal of trapped air during the priming process. These valves act as mediators between the liquid-filled conduits and the external environment, enabling smooth air evacuation while maintaining liquid flow and facilitating siphon formation.
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 allows for efficient and automatic diversion of liquid between reservoirs, reducing the risk of flooding and minimizing maintenance, as long as the conduits are filled with liquid, thereby preventing overflow and damage.
Implementation Method 1
A drainage apparatus with a conduit arrangement and valve system that utilizes the siphoning effect to transfer liquid between reservoirs
Implementation Method 2
achieving equilibrium hydrostatic pressure for automatic operation
Data Source
AI summary
A method 200 for priming a drainage apparatus 100 comprises directing liquid into the conduit arrangement at 202 via the liquid injection inlet 106b12 to fill up most of the conduit arrangement as controlled by the valves' configuration; directing liquid into the first reservoir 102 at 206 to enable more liquid to enter into the conduit arrangement via the first opening 112 and at 208, to flood the conduit arrangement to form a continuous liquid flow path which extends from the first opening 112 up to at least the second opening 114, the continuous liquid flow path creating a siphon; and with the first opening 112 kept below the liquid's surface level in the first reservoir 102, stopping the flow of liquid into the first reservoir 102 to achieve a state of equilibrium of the siphon at 210 to prime the conduit arrangement.