Optical Sensing Device for Liquid Treatment Coagulation Control
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Solution Overview
Problem
Current optical sensing technologies in liquid treatment systems face challenges in accurately monitoring and controlling process variables such as particle size and aggregation in real-time, particularly in dynamic and variable environments, requiring more efficient and cost-effective solutions for coagulation and flocculation processes.
Innovation Solution
An optical sensing and control device that emits a light beam, moves it in a plane to interact with particles within a control volume, and uses a photodetector to generate image data for analyzing process variables, allowing for real-time control of temperature, chemical introduction, mixing rates, and valve operations to manage coagulation and flocculation processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional optical sensing technologies are used to monitor process variables, then measurement capability is provided, but measurement precision and real-time accuracy are insufficient in dynamic environments
Solution Approach 1:
The patent implements a dynamic optical sensing system where the light source moves across the control volume to illuminate different regions, and the detector相应地 scans to capture scattering signals from various positions. This dynamic scanning approach enables real-time monitoring of process variables such as particle size and aggregation state, improving measurement precision in dynamic environments while maintaining reliability through continuous updates of the measured parameters
Solution Approach 2:
The system incorporates feedback control where the detector measures light scattering properties and feeds this information back to adjust the illumination pattern and control process variables. The controller uses the measured data to dynamically adjust chemical dosing, mixing rates, and other process parameters, thereby improving both measurement precision and process control reliability in real-time
2Measurement precision
If advanced optical sensing systems are implemented to improve measurement precision, then real-time monitoring capability is enhanced, but device complexity increases
Solution Approach 1:
The optical sensing device is designed with multi-functionality, where a single integrated system performs both illumination and detection functions. The light source and detector are coupled to the same control volume, allowing the device to simultaneously monitor multiple process variables (particle size, aggregation, coagulation efficiency) without requiring separate specialized instruments, thereby reducing overall device complexity while maintaining high measurement precision
Solution Approach 2:
The patent uses light scattering as an intermediary mechanism to indirectly measure process variables. Instead of directly observing complex chemical or physical processes, the system measures the scattering of light by particles in the control volume, which serves as a reliable proxy for particle characteristics. This intermediary approach simplifies the measurement process while maintaining high precision
3Productivity
If real-time control of process variables is implemented, then productivity and treatment efficiency are improved, but device complexity and operational complexity increase
Solution Approach 1:
The system implements automated feedback control where the optical detector continuously monitors particle characteristics and the controller automatically adjusts process variables such as chemical dosing rates, mixing intensity, and flow rates. This closed-loop feedback mechanism enables real-time optimization of treatment efficiency and productivity without requiring complex manual intervention or highly sophisticated control systems
Solution Approach 2:
The optical sensing system enables self-regulation of the coagulation and flocculation processes. By continuously measuring particle aggregation states and automatically adjusting process parameters, the system serves itself to maintain optimal treatment conditions, reducing the need for external control and simplifying operation while improving productivity
4Productivity
If chemical dosing is increased to improve treatment effectiveness, then treatment efficiency is enhanced, but loss of substance and environmental impact increase
Solution Approach 1:
The system uses feedback control to precisely regulate chemical dosing based on real-time measurements of particle aggregation and coagulation efficiency. The optical detector monitors the formation of flocs and the clarity of effluent, and the controller adjusts chemical feed rates accordingly, ensuring that only the necessary amount of chemicals is added to achieve effective treatment, thereby reducing chemical waste and environmental impact
Solution Approach 2:
The system dynamically changes process parameters such as chemical dosing rates, mixing speeds, and retention times based on measured particle characteristics. By adjusting these parameters in real-time rather than using fixed dosing schedules, the system optimizes treatment efficiency while minimizing chemical consumption and preventing over-dosing that would lead to substance loss and environmental harm
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 precise, efficient, and cost-effective control of coagulation/flocculation processes with minimal operator expertise, improving wastewater treatment efficiency and reducing chemical dosage, while allowing for real-time monitoring and tighter control of particle characteristics, thus enhancing water reuse and reducing environmental impact.
Implementation Method 1
the light beam interacts with particles in the area producing a scattering of the light beam
Implementation Method 2
The photodetector configured to generate image data in response to the scattering of the light beam
Data Source
AI summary
An optical sensing and control device includes a light source emitting a light beam and an optical component in communication with the light beam. The optical component is configured to move the light beam in a plane. The plane extends into an area such that the light beam interacts with particles in the area producing a scattering of the light beam. The optical sensing and control device also includes a photodetector in communication with the particles within the plane. The photodetector configured to generate image data in response to the scattering of the light beam.