Liquid Purification Flushing Using Drain Liquid Mixture
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Solution Overview
Problem
Existing liquid purification methods are inefficient due to high consumption of raw and purified water, leading to increased contamination on purification means and reduced system lifespan, as they rely heavily on raw liquid for flushing, which results in prolonged cycles and excessive liquid usage.
Innovation Solution
A novel liquid purification method that interrupts the purification process periodically for short flushing cycles using a raw liquid/drain liquid mixture to destroy the polarizing contamination layer, followed by longer flushing with the same mixture to reduce contaminants, thereby reducing the overall liquid usage and extending the purification means' lifespan.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If flushing is performed periodically with raw liquid/purified liquid mixture, then the contamination layer is removed, but the consumption of purified liquid increases substantially
Solution Approach 1:
The flushing process is divided into two distinct stages: a first flushing stage using drain liquid to remove the polarizing contamination layer, and a second flushing stage using raw liquid/purified liquid mixture to reduce contaminant concentration. This segmentation allows each stage to use the most appropriate liquid medium for its specific purpose, minimizing overall purified liquid consumption.
Solution Approach 2:
The patent utilizes the drain liquid, which contains concentrated contaminants, as a beneficial flushing medium in the first stage. By using this liquid to destroy the polarizing layer, the system converts what would be waste into a useful flushing agent, reducing the need to use purified liquid for this purpose.
2Reliability
If flushing is performed with raw liquid/purified liquid mixture, then the contamination layer is broken, but the time required for flushing increases
Solution Approach 1:
The flushing process is divided into two distinct stages: a first flushing stage using drain liquid to remove the polarizing contamination layer, and a second flushing stage using raw liquid/purified liquid mixture to reduce contaminant concentration. This segmentation allows each stage to use the most appropriate liquid medium for its specific purpose, minimizing overall purified liquid consumption.
Solution Approach 2:
The system implements periodic flushing cycles that alternate between purification operation and flushing operation. During flushing, the liquid purification means is isolated and flushed with appropriate liquids, then the system returns to purification mode. This periodic action maintains system performance without requiring continuous flushing.
3Productivity
If the polarizing contamination layer builds up on the purification means, then the purification efficiency decreases, but the system continues to operate
Solution Approach 1:
The system implements periodic flushing cycles that alternate between purification operation and flushing operation. During flushing, the liquid purification means is isolated and flushed with appropriate liquids, then the system returns to purification mode. This periodic action maintains system performance without requiring continuous flushing.
Solution Approach 2:
The system performs preliminary flushing actions before the contamination layer becomes too thick to affect performance significantly. By detecting when flushing is needed and performing it proactively, the system prevents efficiency degradation rather than reacting after performance has already declined.
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 method reduces the amount of raw liquid used and minimizes contamination on the purification means, leading to more efficient operation and extended system lifespan by utilizing the raw liquid/drain liquid mixture for both short and extended flushing cycles.
Implementation Method 1
the raw liquid is supplied via a pressure increasing means through a raw liquid/drain liquid mixing line to the liquid purification means
Implementation Method 2
Methods of reverse osmosis treatment of liquids involving recycling and systems for implementing the same are quite widely spread
Data Source
AI summary
Raw liquid is fed along a raw liquid and drain liquid mixing line to a liquid purification device. Drain liquid is fed along a recirculation line to be mixed with raw liquid. After a set period of time, the liquid purification process is interrupted to flush the liquid purification device by a liquid to remove contaminants built up on the inside surface of the liquid purification device. Downstream of the liquid purification device, the liquid is discharged at high speed into a drain. Prior to flushing, the purification process is interrupted at least once for a time sufficient to enable disruption of a polarized layer of contaminants. A mixture of raw liquid and drain liquid is used as the liquid medium for flushing such that less raw liquid is used for flushing and the service life of the water purification device increases.