Siphon-Based Storm Water Detention Assembly
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Solution Overview
Problem
Existing systems for detaining storm water lack effective mechanisms for enhancing water detention and removal of floatables and solids before discharge into downstream conveyance or treatment systems.
Innovation Solution
A water detention system comprising a side wall, top ceiling, and bottom floor with a siphon-based water discharging assembly that includes an outer enclosure with sealed back portions and a pipe stub, preventing water bypass and enhancing the detention and removal of floatables and solids by utilizing a bell siphon for controlled egress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a standard catch-basin or drainage manhole is used without additional detention mechanisms, then the structure is simple and easy to install, but it cannot effectively detain storm water or remove floatables and solids
Solution Approach 1:
The siphon-based water discharging assembly is nested within the existing catch-basin or drainage manhole structure. The outer enclosure of the discharging assembly fits inside the detention structure, utilizing the existing space without requiring separate standalone detention facilities. This nesting approach enables effective storm water detention while avoiding the complexity of completely new structures.
Solution Approach 2:
The invention employs a siphon mechanism that utilizes hydraulic principles to自动控制 water discharge. The siphon assembly creates a water seal and uses pressure differential to regulate flow, enabling automatic detention and release of storm water without mechanical actuators or complex control systems. This hydraulic approach achieves reliable detention effectiveness while maintaining structural simplicity.
2Reliability
If water can freely bypass the discharging assembly and enter the outlet conduit, then the system is simpler with fewer sealing requirements, but floatables and solids cannot be effectively removed before discharge
Solution Approach 1:
The invention extracts the water discharge function from the general flow path by creating a separate, enclosed siphon-based discharging assembly. This isolated pathway forces water to pass through the siphon mechanism where floatables and solids are removed, preventing direct bypass into the outlet conduit. The outer enclosure with sealed back portions ensures that the extraction of the discharge function achieves effective removal without allowing shortcuts.
Solution Approach 2:
The siphon assembly acts as an intermediary between the holding area and the outlet conduit. Water must pass through this intermediate siphon mechanism rather than flowing directly from the holding area to the conduit. The siphon's water seal and controlled discharge pathway serve as a mediating structure that enables floatable and solid removal while managing the sealing requirements in a controlled manner.
3Reliability
If the siphon is not properly enclosed to prevent air entry, then the structure is simpler with fewer components, but the siphon performance is adversely affected and continuous operation cannot be ensured
Solution Approach 1:
The outer enclosure of the water discharging assembly provides a protective shell that seals the siphon mechanism. This enclosure prevents air from entering the siphon while maintaining a relatively simple structural form. The enclosure acts as a flexible barrier that ensures continuous siphon operation without requiring complex rigid sealing systems or multiple discrete sealing components.
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 effectively detains storm water, preventing floatables and solids from entering the outlet conduit, thereby improving the removal efficiency and reducing downstream pollution, with the siphon ensuring continuous operation during varying flow conditions.
Implementation Method 1
the siphon creates or acts as a temporary holding or storage area which is above the outlet conduit
Data Source
AI summary
A water detention system for detaining storm water having a side wall and a bottom floor; an inlet conduit for ingress of storm water; and a water discharging assembly, which includes a siphon, configured to pass storm water there through; and an outlet conduit for egress of storm water from the water discharging assembly. The inlet and outlet conduits are disposed through the side wall of the water detention system. A water discharging assembly for discharging storm water from a water detention system includes an outer enclosure; a first opening in the outer enclosure for ingress of water; a second opening in the outer enclosure for egress of water; and a siphon disposed within the outer enclosure; where, except of the first opening and the second opening, the outer enclosure is substantially fluid tight.