Wastewater Diffuser Assembly With Modular Snap-Fit Mounting
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Solution Overview
Problem
There is a need for assemblies that allow large numbers of smaller-diameter disc diffusers to be economically and efficiently installed in wastewater treatment tanks, while being robust enough to withstand harsh operating conditions.
Innovation Solution
A diffuser assembly comprising a diffuser mount with a mount-to-pipe connection, distribution conduits, and curved mount-to-diffuser attachment slots, allowing for the attachment of multiple smaller-diameter disc diffusers via snap-fit mechanisms without adhesives or mechanical fasteners, ensuring efficient aeration and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If smaller-diameter disc diffusers are used, then aeration efficiency is improved and membrane deflection is reduced, but installation complexity and labor requirements increase
Solution Approach 1:
The diffuser system is segmented into modular units, each containing multiple smaller-diameter disc diffusers arranged in a standardized configuration. This segmentation allows the complex installation of many small diffusers to be broken down into repeating modular units that can be manufactured and installed as standardized assemblies, reducing overall installation complexity while maintaining the aeration efficiency benefits of smaller diffusers
Solution Approach 2:
A universal mounting structure and connection interface is designed that can accommodate the smaller-diameter disc diffusers in various configurations. This universal system provides standardized attachment mechanisms and distribution conduit connections that simplify installation across different applications, allowing the same mounting hardware to handle multiple diffusers efficiently
2Manufacturing precision
If larger numbers of disc diffusers are installed, then air distribution uniformity is improved, but system robustness and ease of installation deteriorate
Solution Approach 1:
Multiple disc diffusers are merged into integrated modular assemblies where several diffusers are pre-mounted on a common structure with shared distribution conduits. This merging approach maintains the air distribution uniformity benefits of having multiple diffusers while reducing installation complexity by treating them as a single integrated unit rather than individual components
Solution Approach 2:
The disc diffusers are pre-assembled and pre-configured in modular units before field installation. Distribution conduits are pre-connected and diffusers are pre-positioned in their optimal configurations during manufacturing or pre-installation phases. This preliminary action ensures air distribution uniformity is achieved through precise pre-configuration while significantly simplifying the actual field installation process
3Ease of manufacture
If traditional installation methods are used, then individual diffuser installation is simple, but overall system installation time and cost increase
Solution Approach 1:
The installation process is segmented into modular units that can be independently manufactured, tested, and installed. Each module contains a standardized number of diffusers with pre-configured connections, allowing parallel installation of multiple modules throughout the tank, thereby reducing total installation time while maintaining the simplicity of individual module installation
Solution Approach 2:
Multiple disc diffusers are nested within a hierarchical modular structure where individual diffusers are contained within module assemblies, which in turn are contained within larger system configurations. This nesting approach allows simple installation of individual diffusers within their modules while the modular structure enables efficient scaling to full system installation, reducing overall time and cost
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
Enables efficient and cost-effective installation of numerous smaller-diameter disc diffusers, providing uniform air distribution, reducing spiral flow and bubble coalescence, and maintaining system robustness under harsh conditions.
Implementation Method 1
a plurality of distribution conduits in gaseous communication with the mount-to-pipe connection portion
Implementation Method 2
the diffuser membrane of a smaller-diameter disc diffuser tends to deflect less than that in a larger-diameter disc diffuser, resulting in a more uniform distribution of air
Implementation Method 3
the air to pass through the holes in the diffuser membrane into the water, forming a plume of small bubbles
Data Source
Figure 1~2
Figure 3~4
Figure 5~8
AI summary
An exemplary wastewater treatment system includes a pipe, a diffuser mount (145), and four disc diffusers (150). The diffuser mount includes a mount-to-pipe connection portion (140) attached to the pipe, four distribution conduits (165) arranged in a cross shape and in gaseous communication with the mount-to-pipe connection portion, and four curved mount-to-diffuser attachment slots (170) located above the four distribution conduits. Each of the four disc diffusers occupies one of the four curved mount-to-diffuser attachment slots and is attached to one of the four distribution conduits. Configured in this manner, each of the four disc diffusers is in gaseous communication with an interior of the pipe and can be used to generate plumes of bubbles in wastewater for aerobic wastewater treatment applications.