Chlorine Sensor Verification in Water Treatment Brine Control
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Solution Overview
Problem
Existing water treatment systems face challenges in remote diagnosis and monitoring of chlorine and hardness levels, particularly in mechanical filters, leading to inefficiencies and safety concerns, especially in dialysis water preparation, due to unreliable chlorine sensors and microbial growth in softeners.
Innovation Solution
Implementing an actuator sensor control system with online monitoring using electronic measuring devices, including pressure sensors and ion-sensitive sensors, and an online chlorine sensor that uses electrolytically generated chlorine for verification, along with a weighing cell to monitor brine container levels, enabling remote diagnosis and reducing manual documentation and microbial growth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual documentation of chlorine and hardness levels is performed daily, then safety requirements are met and toxic chlorine removal is proven, but operational efficiency decreases and time consumption increases
Solution Approach 1:
The system performs self-monitoring through automatically operated valves and electronic measuring devices that continuously assess filter functionality and chlorine levels without human intervention, generating electronic documentation that satisfies safety requirements while eliminating manual work
Solution Approach 2:
Manual mechanical documentation processes are replaced by an automated electronic control system with sensors, valves, and digital recording capabilities that continuously monitor and document water quality parameters, improving both efficiency and reliability
2Reliability
If extensive manual documentation is carried out to prove chlorine removal, then regulatory compliance is achieved, but the complexity of operations increases
Solution Approach 1:
The system incorporates automatic feedback loops where electronic measuring devices continuously monitor chlorine levels and filter status, and the control unit automatically adjusts valve operations and generates compliance documentation, simplifying operations while ensuring regulatory adherence
Solution Approach 2:
The control system autonomously manages compliance documentation by automatically recording measurement data and generating required reports, eliminating the need for complex manual documentation processes while maintaining full regulatory compliance
3Reliability
If filter material is replaced due to blockages, then filter functionality is restored, but operational interruption occurs
Solution Approach 1:
The system performs preliminary monitoring of filter status through pressure sensors and electronic measuring devices that detect contamination levels before blockages occur, allowing proactive maintenance scheduling that minimizes operational interruptions
Solution Approach 2:
Continuous feedback from pressure sensors and flow meters provides real-time information on filter condition, enabling predictive maintenance decisions that optimize the timing of filter replacements to minimize disruption to water treatment operations
4Productivity
If online chlorine sensors are used without regular chlorination, then continuous monitoring is achieved, but measurement reliability deteriorates
Solution Approach 1:
The system implements periodic chlorination cycles where chlorine is intermittently introduced to the water stream at scheduled intervals, providing regular calibration signals to the online chlorine sensor without requiring continuous chlorination, thus maintaining both continuous monitoring capability and sensor measurement reliability
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 system allows for real-time evaluation of filter status, reduces the need for daily inspections, prevents calcification and microbial contamination, and ensures reliable chlorine removal, thereby improving operational efficiency and safety.
Implementation Method 1
The chlorine can be produced from an existing brine solution... an online measuring chlorine sensor is used, the safety-relevant function of which is verified by regularly supplying electrolytically generated chlorine of a known concentration to the sensor
Implementation Method 2
different mechanical filter stages are monitored online for their degree of contamination using an electronic pressure sensor by measuring the pressures and determining the pressure difference
Implementation Method 3
The function of the water softener, i.e. the filtration and reduction of the poorly soluble calcium and magnesium salts, can be monitored by an ion-sensitive calcium and/or magnesium sensor
Implementation Method 4
The fill level of the brine tank, or the remaining volume of salts in the brine tank, can be easily monitored using a scale. For this purpose, the brine tank is placed on a support structure with an integrated weighing cell
Data Source
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AI summary
The water treatment plant, in particular the pre-filtration unit of the water treatment plant, with at least one chlorine sensor device, is characterized in that the water treatment plant contains a brine treatment device which is connected to the chlorine sensor device, wherein an electrolysis cell, and afterwards a pump and a release valve are connected in the associated line.