UV Detergent Dosing Control in Automotive Parts Washers
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Solution Overview
Problem
Current methods for testing and adjusting detergent concentration in automotive parts washers are time-consuming, manually intensive, and require frequent adjustments, leading to system downtime and inconsistent wash water quality.
Innovation Solution
Implementing a UV meter-based system with a controller and metering pump to automatically monitor and adjust detergent concentration in wash water, eliminating the need for manual titration and reducing downtime.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual titration is used to test detergent concentration, then measurement can be performed, but the process is time-consuming and requires frequent adjustments
Solution Approach 1:
The patent replaces manual mechanical titration with an automated optical detection system using a UV meter. The UV meter automatically measures detergent concentration by detecting UV absorbance, eliminating the need for manual titration operations and significantly reducing measurement time while maintaining precision.
Solution Approach 2:
The system implements self-service through automated feedback control. The UV meter continuously monitors detergent concentration and automatically triggers metering pump adjustments when concentration deviates from targets, enabling the system to self-regulate without manual intervention.
2Measurement precision
If manual titration and adjustment is used, then detergent concentration can be tested, but system downtime increases
Solution Approach 1:
The patent implements continuous monitoring and adjustment capabilities. The UV meter continuously measures detergent concentration in real-time, and the metering pump continuously adjusts dosage as needed, eliminating the intermittent stoppages required for manual titration and ensuring uninterrupted washing system operation.
Solution Approach 2:
The system uses feedback control where UV meter measurements are fed back to the control system, which then automatically adjusts metering pump operation. This closed-loop feedback mechanism maintains detergent concentration within target ranges without requiring system shutdown or manual intervention.
3Measurement precision
If manual adjustment is used, then detergent concentration can be controlled, but operation complexity increases
Solution Approach 1:
The system performs self-adjustment through automated control. The UV meter continuously monitors detergent concentration and automatically triggers metering pump adjustments when concentration deviates from targets, eliminating the need for manual operation while maintaining precise control.
Solution Approach 2:
Manual mechanical adjustment operations are replaced with an automated electronic control system. The control system processes UV meter data and automatically regulates the metering pump, replacing complex manual titration and adjustment procedures with simple automated electronic control.
4Measurement precision
If frequent manual adjustments are made, then detergent concentration can be maintained, but labor intensity increases
Solution Approach 1:
The system achieves self-service through automated monitoring and adjustment. The UV meter continuously monitors detergent concentration and automatically triggers metering pump adjustments when needed, maintaining consistent concentration without requiring manual labor for frequent adjustments.
Solution Approach 2:
The patent implements feedback control where UV meter measurements are continuously fed back to the control system. When concentration deviates from target ranges, the feedback mechanism automatically activates the metering pump to restore proper concentration, eliminating the need for manual intervention while maintaining consistency.
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 rapid, automated testing and adjustment of detergent concentration, maintaining consistent wash water quality and reducing system downtime.
Implementation Method 1
the sensor comprises a UV meter; wherein the sensor is configured to take a UV transmission measurement of the collected wash water
Data Source
AI summary
The present disclosure relates to methods and systems for detecting and controlling the dosing and residual concentration of hard surface cleaners and rinse aids in an automotive parts washer. In particular, the methods and systems are particularly suitable for washing systems employed prior to exterior plastic part painting. The methods and systems comprise a UV meter, a controller, and a metering pump; wherein the controller is in electrical communication with the UV meter and the metering pump.