Water Purification Bypass Valve for High Demand Periods
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional water purification systems face challenges during high demand periods, as they often deplete the reservoir of purified water quickly, leading to an inability to provide clean water for extended periods without passing water through all stages of filtration.
Innovation Solution
A water purification system with a bypass valve that allows water to bypass the reverse osmosis filter during high demand, utilizing a particulate filter and reservoir, controlled by sensors and a controller to manage water flow and quality, ensuring continuous water supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If water passes through all stages of filtration (particulate filter and reverse osmosis filter) during high demand periods, then water quality is maintained at high purity levels, but water delivery speed and continuous supply capability deteriorate
Solution Approach 1:
The filtration system is segmented into two independent stages: particulate filtration and reverse osmosis filtration. During high demand periods, the system can selectively activate only the particulate filter stage, allowing water to bypass the reverse osmosis stage. This segmentation enables flexible operation where water quality requirements determine which filtration stage is active, resolving the contradiction between maintaining high purity (full filtration) and delivering water quickly (bypassing slow RO stage).
Solution Approach 2:
The bypass valve dynamically adjusts the water flow path based on real-time conditions including reservoir water level, demand rate, and filtration stage completion. The controller monitors these parameters and dynamically switches between full filtration mode (both stages active) and bypass mode (RO stage bypassed), allowing the system to adapt its operation to continuously meet demand while maintaining acceptable water quality.
2Productivity
If the reservoir is emptied during high demand periods, then continuous water supply is maintained, but the system cannot provide purified water for extended periods without depleting the reservoir
Solution Approach 1:
The system performs preliminary action by pre-filtering water through the particulate filter and storing it in the reservoir before high demand periods occur. During normal operation, the RO filter continuously purifies water that is stored in the reservoir. This preliminary preparation ensures that when high demand occurs, the reservoir already contains a supply of pre-purified water that can be quickly dispensed without depleting the need for continuous RO filtration, thereby extending purified water availability duration.
3Productivity
If the bypass valve allows water to bypass the reverse osmosis filter, then water delivery speed increases during high demand, but filtration completeness and water purity may be compromised
Solution Approach 1:
The controller receives feedback from water level sensors and demand detection mechanisms to intelligently control the bypass valve. The system monitors reservoir water level and activates the bypass only when the reservoir contains sufficient pre-purified water to maintain purity standards. This feedback control ensures that bypass operation does not compromise water purity, as the bypassed water is supplemented by continued RO filtration of replacement water, maintaining the purity balance while enabling high-speed delivery during demand peaks.
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 continuous water delivery during high demand by prioritizing water storage and filtration through the particulate filter, maintaining water supply without relying solely on the slower reverse osmosis process, thus addressing the limitations of existing systems.
Implementation Method 1
a second filter comprising a reverse osmosis filter
Implementation Method 2
a first filter comprising a particulate filter
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
A water purification system having more than one filter that allows for bypassing one or more filter stages of purification during periods of high demand. Bypass of one or more filter stages can be selectively implemented as a function of fluid particulate levels and/or reservoir level with a controller controlling the position of a bypass valve.