Pivoting Launder Covers for Clarifier Algae Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Clarifier tanks are susceptible to algae growth due to sunlight exposure, which can inhibit operation and lead to undesirable aesthetics and odors, and existing launder covers are prone to deterioration and difficult to adjust.
Innovation Solution
A launder cover system with pivotably connected support members and covers that can be independently adjusted to cover or expose the launder channel, using mounts, hinge and pivot connectors, and adjustable launder supports to prevent sunlight exposure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If fiberglass reinforced plastic covers are used to cover the launder channel, then algae growth is inhibited, but the covers fade and deteriorate in the sun
Solution Approach 1:
The patent changes the material parameter from fiberglass reinforced plastic to aluminum, which has superior UV resistance and durability while maintaining the algae prevention function through the reflective and opaque properties of metal material
Solution Approach 2:
The invention uses composite construction with aluminum extrusions forming the structural framework and incorporates UV-resistant polycarbonate or acrylic panels as the covering material, combining the structural strength of metal with the UV resistance of engineered polymers
2Adaptability or versatility
If adjustable launder covers are provided, then coverage flexibility is improved, but brackets or securing devices must be installed on the weir which are difficult to adjust or operate without reaching over the tank
Solution Approach 1:
The patent moves the adjustment mechanism from the horizontal plane (requiring access over the tank) to the vertical plane, allowing operators to adjust covers from ground level by manipulating linkage arms and pivot points located at the tank wall mounting location
Solution Approach 2:
The invention introduces intermediate linkage arms and pivot connectors that mediate between the motorized or manual actuation mechanism and the cover panels, enabling adjustment from a remote, accessible location without direct contact with the weir area
3Adaptability or versatility
If the launder cover system is made adjustable between raised and lowered positions, then operational flexibility is improved, but the mechanism complexity increases
Solution Approach 1:
The patent employs dynamic, motorized actuation mechanisms that automatically position the covers based on operational requirements, replacing complex manual adjustment linkages with simplified electric motors and control systems that provide the same flexibility with reduced mechanical complexity
Solution Approach 2:
The invention integrates multiple functions into unified components: the same motorized actuation system provides both adjustment and positioning functions, while the aluminum extrusion framework simultaneously serves as structural support, mounting surface, and aesthetic element, reducing overall system complexity
Data Source
AI summary
A launder cover system for reducing or eliminating sunlight exposure so as to prevent algae growth in a tank such as a clarifier tank. The launder cover system generally includes a plurality of support members and a plurality of launder covers which are each independently pivotably connected to a tank wall of a tank, such as by using a mount. The support members are each pivotably connected to the tank wall by a pivot connector and the launder covers are each pivotably connected to the tank wall by a hinge connector. Each support member is positioned between a pair of launder covers, and each launder cover is positioned between a pair of support members. The support members function to support the launder covers in a raised or lowered position. A launder support may be connected to the channel wall to support the launder covers in their lowered positions.