Zero Waste Liquid Dosing with Precision Volumetric Pumping
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Solution Overview
Problem
Existing methods for filling containers with liquids, especially expensive, dangerous, or toxic substances, often result in waste due to inaccuracies and discontinuities, leading to increased costs, safety concerns, and contamination risks.
Innovation Solution
A precision volumetric pumping system with a defined 'zero' angular start-of-delivery position, combined with a three-way valve for re-circulation and a closed-loop feedback control system, ensures accurate dosing within strict tolerances by adjusting the angular position of the rotor based on real-time measurements and database corrections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional filling systems are used, then filling speed and productivity are maintained, but filling precision and tolerance control deteriorate, resulting in waste production
Solution Approach 1:
The system implements a closed-loop feedback control mechanism where the actual liquid quantity delivered is measured and compared against the target value. The control unit automatically adjusts the dosing parameters based on this feedback to maintain precision within 2-5 per thousand tolerance, eliminating the need for manual intervention and ensuring continuous accurate operation.
Solution Approach 2:
The invention dynamically adjusts dosing parameters such as pump speed, delivery time, and rotor angular position based on real-time measurements. By changing these parameters adaptively rather than using fixed settings, the system maintains high precision across varying production conditions without sacrificing productivity.
2Manufacturing precision
If filling tolerance is restricted to very low values for expensive or dangerous liquids, then product safety and precision are improved, but waste production increases due to reprocessing needs
Solution Approach 1:
The feedback control system continuously monitors the actual liquid quantity delivered and automatically compensates for deviations before they result in waste. By detecting and correcting errors in real-time, the system maintains precision within strict tolerances without requiring reprocessing of containers, thereby eliminating waste generation.
Solution Approach 2:
The system performs preliminary calibration and adjustment of dosing parameters before actual filling operations begin. This preliminary action ensures that the filling process starts with optimized settings, preventing waste from the outset rather than requiring corrective reprocessing later.
3Measurement precision
If conventional dosing methods are used, then equipment simplicity is maintained, but dosing accuracy and consistency deteriorate
Solution Approach 1:
The invention replaces manual or simple mechanical dosing mechanisms with an automated control system that uses sensors, processors, and actuators. This substitution of mechanical systems with automated control enables precise measurement and adjustment of dosing parameters, achieving accuracy within 2-5 per thousand tolerance while maintaining manageable system complexity through integrated control architecture.
4Reliability
If continuous protection from contaminants is required for hazardous liquids, then product safety is improved, but reprocessing costs and contamination risks increase
Solution Approach 1:
The feedback control system continuously monitors filling operations to detect any deviations or potential contamination events. By providing real-time feedback, the system can immediately stop the filling process when anomalies are detected, preventing contamination of hazardous liquids and eliminating the need for costly reprocessing while maintaining continuous product protection.
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 approach allows for precise filling of containers within 2-5 per thousand tolerance, minimizing waste and ensuring continuous, constant delivery, even for hazardous substances, by continuously adjusting the delivery point and re-circulating excess liquid, thus reducing production costs and environmental impact.
Implementation Method 1
a peristaltic pump, which is provided with a rotor (42) that rotates in a direction indicated by an arrow and that is applied with compression and release cycles to a flexible hose (46) through which the liquid flows
Implementation Method 2
a three-way valve (13) that can redirect the stream of liquid coming from the outlet pipe (18) of the peristaltic pump (12) towards the tank (11)
Data Source
AI summary
Zero waste dosing method for filling containers of liquids which provides to use, at a delivery station of the liquid product, at least a volumetric pump with a rotor and stator, associated with a tank of the liquid to be introduced into said containers.