Field Flow Fractionator Solvent Routing for Selective Recycling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current field flow fractionators lack an efficient system to manage solvent flows, leading to unnecessary solvent consumption and potential contamination, as they typically route all exit fluids to waste without the option to recycle clean solvent streams based on the specific needs of each experiment.
Innovation Solution
An intelligent solvent management system that includes a union assembly coupled to detector and cross flow outputs of a field flow fractionator, allowing for automatic routing of solvent flows to either recycle or waste on a per-method basis, incorporating a recycle and waste assembly with valves to control fluid routing and track solvent usage, thereby optimizing solvent conservation and preventing system dry-out.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If all exit fluids are routed to waste without recycling option, then system simplicity is maintained, but solvent consumption increases and clean solvent streams are wasted
Solution Approach 1:
The waste stream is segmented into multiple pathways: a clean solvent stream pathway and a contaminated solvent stream pathway. The union assembly separates detector flow and cross flow outputs, allowing the clean solvent portion to be recycled while directing only the contaminated portion to waste. This segmentation enables selective recycling without requiring complete system redesign.
Solution Approach 2:
The system incorporates dynamic routing capability through the union assembly and valve mechanisms that can automatically or manually direct flows to different destinations based on solvent cleanliness. The routing configuration can be changed on a per-method basis, allowing the system to adapt between recycling mode and waste discharge mode depending on experimental requirements.
2Productivity
If solvent recycling is implemented without automated routing, then solvent conservation is achieved, but manual intervention increases operation complexity and potential for error
Solution Approach 1:
The system is equipped with sensors and automated control mechanisms that monitor solvent levels, flow rates, and contamination levels. The union assembly and associated valves can automatically route flows based on pre-programmed parameters or real-time sensor feedback, reducing the need for manual intervention while maintaining efficient solvent recycling.
Solution Approach 2:
The system incorporates feedback mechanisms through detectors that monitor the cleanliness of solvent streams and sensors that track solvent levels in the recycling reservoir. This feedback information is used by the control system to automatically adjust routing decisions, ensuring that clean solvent is recycled while contaminated solvent is directed to waste, without requiring constant manual assessment.
3Reliability
If solvent levels are not monitored, then system simplicity is maintained, but system dry-out and performance inconsistency occur
Solution Approach 1:
Manual visual monitoring of solvent levels is replaced with automated sensor-based detection. Level sensors detect when the solvent reservoir reaches critical levels and trigger automated responses such as alerting the operator or switching routing modes. This substitution of mechanical/visual monitoring with sensor-based systems provides reliable performance monitoring without significant complexity increase.
Data Source
AI summary
The present disclosure describes an apparatus of managing solvent associated with a field flow fractionator. In an exemplary embodiment, the apparatus includes (1) a union assembly coupled to a detector flow output from at least one detector coupled to a field flow fractionator, and (2) a recycle and waste assembly coupled to an output of the union assembly and a channel cross flow output of the field flow fractionator.