Runoff Infiltration System With Dynamic Discharge Control

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Solution Overview

Problem

Soakaway/infiltration tanks face limitations in areas with inefficient percolation rates, leading to potential flooding issues due to inadequate discharge of stored stormwater, which restricts their use and effectiveness in managing runoff water.

Innovation Solution

An arrangement that includes an infiltration means configurable for fluid communication with drainage systems, a control means for regulating discharge based on weather forecast data and water level sensors, and a communication system for optimizing infiltration and discharge, allowing for automatic regulation of runoff water passage to prevent flooding.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If soakaway/infiltration tanks are used to store runoff water, then flooding risk is reduced and groundwater recharge is improved, but the tanks cannot be used in areas with inefficient percolation rates due to inadequate discharge capacity

Engineering Contradiction:
Improveflooding prevention reliabilityVSAvoidadaptability to different percolation rate areas
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system employs dynamically adjustable discharge control means that can modify the discharge rate based on real-time conditions. The control means responds to water level signals and weather forecast data, adjusting the discharge rate dynamically to match the actual percolation capacity of the ground, thereby enabling reliable operation across varying percolation rates.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system incorporates feedback mechanisms through water level sensors that continuously monitor the water level in the infiltration tank and send signals to the discharge control means. This feedback loop enables the system to automatically adjust discharge rates, ensuring the tank empties efficiently regardless of ground percolation characteristics, thus resolving the adaptability issue.

Inventive Principle:
Principle #23Feedback

2Productivity

If the infiltration means discharges stored water quickly to provide storage capacity for subsequent storms, then flooding is avoided, but the discharge rate may exceed the percolation capacity of the surrounding ground in areas with inefficient percolation rates

Engineering Contradiction:
Improvedischarge rateVSAvoidpercolation efficiency
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The discharge control means dynamically adjusts the discharge rate based on real-time water level signals and weather forecast data. This dynamic control ensures the discharge rate matches the ground's actual percolation capacity, preventing overflow while maximizing water discharge efficiency in areas with inefficient percolation rates.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system receives weather forecast data in advance and performs preliminary actions by adjusting the discharge rate before significant rainfall events. This allows the system to proactively manage water levels, ensuring the infiltration tank is ready to receive subsequent stormwater while maintaining a discharge rate that does not exceed ground percolation capacity.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If control means is added to regulate discharge based on weather forecast data, then the system can operate in areas with varying infiltration rates, but the device complexity increases

Engineering Contradiction:
Improveoperational flexibility across different infiltration ratesVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system employs self-service mechanisms where water level sensors automatically detect when the tank needs emptying and trigger the discharge control means without human intervention. The control means autonomously responds to weather forecast data and adjusts discharge rates, reducing the need for complex manual control systems while maintaining high adaptability to different infiltration rates.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The system replaces complex mechanical control mechanisms with electronic and computational approaches. Weather forecast data is processed electronically, and discharge control is achieved through electronically actuated mechanisms rather than purely mechanical systems, reducing overall device complexity while enhancing adaptability to varying infiltration conditions.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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

This solution enables efficient infiltration of runoff water into the ground, reducing the risk of flooding by optimizing storage capacity and discharge, making soakaway/infiltration systems usable in areas with varying infiltration rates and enhancing groundwater recharge.

Implementation Method 1

soakaways/infiltration tanks are underground structures that are capable of temporarily storing runoff water while it percolates into the ground

Methodology Applied
Scientific EffectPercolation: Capillary Action

Implementation Method 2

a control means for regulating discharge of stored runoff water into the means for draining runoff water from the surrounding ground

Methodology Applied
Scientific EffectHydraulic control: Hydraulic Press

Data Source

PatentEP3800301A1An arrangement and method for optimizing infiltration and discharge of runoff water
Publication Date: 2021.04.07 STORMHARVESTER LTD
  • EP3800301A1 patent drawingFigure 1
  • EP3800301A1 patent drawingFigure 2
  • EP3800301A1 patent drawingFigure 3

AI summary

An arrangement for optimizing discharge and infiltration of runoff water, the arrangement having an infiltration means (2) to enable infiltration of stored runoff water back into the surrounding ground. The infiltration means (2) is configured to be in fluid communication with a means for draining runoff water from the surrounding ground (3).