Aqueous Solution Mixing with Feedback Dosing and Turbulent Injection
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Solution Overview
Problem
Existing methods for mixing aqueous solutions, such as those used in chlorine dioxide production, face challenges in accurately dosing and mixing substances like sodium chlorite and hydrochloric acid due to fluctuations in water quantity and quality, leading to potential excess or deficiency of chlorine dioxide, which affects water disinfection efficacy and safety.
Innovation Solution
The method involves using dosing devices with integrated dosing monitoring and stroke length closed-loop control, where dosing devices are connected in parallel to introduce aqueous solutions into a mixing container with a flow breaker for turbulence, and dosing monitoring is done using motor parameters or sensors to adjust stroke length based on real-time chemical measurements, ensuring uniform distribution and stoichiometric ratios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If dosing devices are used to dose relatively small amounts of aqueous solutions, then dosing precision is improved, but the ability to adapt to fluctuations in water quantity and quality deteriorates
Solution Approach 1:
The patent implements a feedback control system where the dosing device receives control signals based on measured water quality parameters (turbidity, temperature, flow rate). The controller adjusts dosing parameters in real-time according to feedback from sensors, enabling the system to adapt to fluctuations while maintaining precise dosing control.
Solution Approach 2:
The dosing device transitions from static dosing parameters to dynamic adjustable parameters. The system allows real-time modification of dosing rate, pump speed, and injection timing based on changing water conditions, making the dosing process adaptive rather than fixed.
2Productivity
If dosing devices are connected in parallel to feed substances to a mixing container, then productivity is improved, but mixing uniformity deteriorates
Solution Approach 1:
The patent introduces a flow breaker as an intermediary element in the mixing container. This flow breaker creates turbulence and enhances mixing efficiency, ensuring uniform distribution of dosed substances even when multiple dosing devices operate in parallel, thereby maintaining composition stability.
Solution Approach 2:
The system employs periodic dosing strokes with optimized timing and duration. By controlling the rhythmic operation of parallel dosing devices and coordinating their stroke patterns, the system achieves both high productivity and uniform mixing through periodic injection cycles.
3Measurement precision
If stroke length is adjusted manually to optimize dosing, then dosing precision is improved, but device complexity and ease of operation worsen
Solution Approach 1:
The patent replaces manual mechanical adjustment of stroke length with automated electronic control. The controller electronically adjusts pump motor parameters and stroke timing based on sensor feedback, eliminating the need for manual mechanical intervention while maintaining dosing accuracy.
Solution Approach 2:
The dosing device implements self-adjustment capabilities where the system automatically optimizes its own dosing parameters based on real-time water quality measurements. The controller autonomously modifies stroke length, pump speed, and dosing rate without requiring manual intervention, making the system self-regulating.
4Stability of the object's composition
If dosing operations are synchronized to improve mixing, then homogeneity is improved, but adaptability to varying water conditions deteriorates
Solution Approach 1:
The synchronization pattern transitions from fixed static timing to dynamic adaptive timing. The system continuously adjusts the timing and coordination of parallel dosing devices based on real-time water conditions, maintaining both synchronization for mixing and adaptability to varying parameters through dynamic control.
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 ensures better mixing and adaptation of dosing amounts, maintaining optimal chlorine dioxide levels for effective water disinfection by synchronizing dosing operations and adjusting stroke lengths to achieve uniform distribution and stoichiometric ratios, thereby ensuring consistent water quality.
Implementation Method 1
a flow breaker (4) is arranged within the mixing container (3) for creating turbulence
Implementation Method 2
the diaphragm performs an oscillating movement upon continued activation and deactivation of the magnetic coil
Data Source
AI summary
The present invention concerns a method of mixing aqueous solutions, an apparatus for carrying out said method and the use of dosing devices with integrated dosing monitoring and stroke length control in an installation for mixing container aqueous solutions.