Storm Water Drain Deflectors for Sediment Settling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing storm water drain systems face challenges in efficiently retaining and removing contaminants, sediment, and preventing mosquito breeding, while maintaining performance during high flow periods without requiring expensive modifications or mechanical maintenance.
Innovation Solution
The implementation of a storm water drain system with deflectors and removable catch basin receptacles that dissipate fluid flow energy, promote sediment settling, and include features like standing sump water and bypass flow paths to manage high flow conditions, along with mesh baskets for pollutant collection and easy maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If deflectors are added to redirect fluid flow towards side walls, then sediment settling efficiency is improved, but device complexity increases
Solution Approach 1:
The catchpit is divided into functional zones using deflectors that segment the incoming flow path. The deflectors create distinct regions: a high-velocity zone along the center where flow is redirected, and low-velocity zones near side walls where sediment settles. This segmentation allows simultaneous flow management and sedimentation without requiring complete system redesign.
Solution Approach 2:
Deflectors serve as intermediary elements between the inlet and the settling zones. These intermediate structures modify the flow characteristics by redirecting water towards side walls, creating the conditions necessary for sediment deposition without directly contacting or removing the sediment themselves.
2Object-affected harmful factors
If a removable catch basin receptacle with standing sump water is implemented, then mosquito breeding prevention is improved, but device complexity increases
Solution Approach 1:
The catchpit is segmented into a removable catch basin receptacle and a permanent structure. The receptacle contains standing sump water that isolates mosquitoes from the main drainage flow, creating a biological barrier without requiring chemical treatments or complex mechanical systems.
Solution Approach 2:
The standing sump water in the catch basin receptacle creates a self-sustaining environment that naturally prevents mosquito breeding through its hydrological characteristics. The system uses its own water flow patterns to maintain the sump level and prevent mosquito access, requiring no external energy input or complex control mechanisms.
3Reliability
If deflectors and flow management features are added to maintain performance during high flow, then reliability is improved, but ease of manufacture worsens
Solution Approach 1:
The system segments flow paths using deflectors and bypass channels, creating multiple flow routes that can handle high flow conditions. During peak flows, water can bypass the settling zone through dedicated channels, preventing system overload while maintaining sedimentation capacity during normal flows.
Solution Approach 2:
The system dynamically adapts to flow conditions through passive hydraulic structures. Deflectors and bypass channels automatically adjust flow distribution based on water level and velocity, providing reliable performance across varying flow rates without requiring active control mechanisms or complex manufacturing.
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 enhances sediment removal efficiency by 40%-75% and allows for effective retention of contaminants and prevention of mosquito breeding, while maintaining system performance and ease of maintenance without costly modifications.
Implementation Method 1
deflectors configured to redirect fluid flow entering the catchpit outwardly and upwardly towards the side walls of the catchpit
Implementation Method 2
promote settling of sediment within the catch pit
Implementation Method 3
a low flow outlet defining a fluid path for fluid at a first level within the container to a second level, higher than the first level, outside the container
Implementation Method 4
an overflow path providing a fluid flow path out of the container at a level higher than the first or second level
Data Source
AI summary
A method of removing sediment from fluid flow within a storm water drain pit by deflecting flow entering the pit towards the side walls of the pit by one or more deflectors. This reduces the energy of the fluid flow and promotes settling of sediment within the catch pit. Each deflector is preferably of a concave form and may be located in a storm water drain pit bag or suspended. A removable catch basin receptacle for a storm water drain pit includes a container has a low flow outlet defining a fluid path for fluid at a first level within the container to a second level, higher than the first level, outside the container. An overflow path provides a fluid flow path out of the container at a level higher than the first or second level.