Salt Chlorinator pH Cleaning Without Polarity Reversal
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Solution Overview
Problem
Existing salt chlorinators for swimming pools face challenges in efficiently removing lime deposits on electrodes without the need for polarity reversal, which is costly and inefficient, and require manual intervention or complex automated systems that are dangerous and costly.
Innovation Solution
A salt chlorinator with integrated pH sensor and stirring device that allows for continuous pH measurement and controlled injection of pH minus acid to dissolve lime deposits automatically, adjusting the amount based on real-time pH readings and electrode conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If polarity reversal is used to remove lime deposits, then cleaning effectiveness is improved, but electrode lifespan deteriorates and system complexity increases
Solution Approach 1:
The invention changes the chemical parameter (pH) of the water in the electrolytic cell by adding acid through injection means. This lowers the pH to dissolve lime deposits on electrodes without requiring polarity reversal, thereby maintaining electrode lifespan while achieving effective cleaning.
Solution Approach 2:
The invention extracts the cleaning function from the electrode operation itself (which would require polarity reversal) and separates it into a independent chemical treatment process using acid injection. This allows electrodes to maintain fixed polarity for optimal performance while cleaning occurs through a separate chemical mechanism.
2Reliability
If manual cleaning with acid is used, then lime deposits are removed, but user safety risks increase and operation complexity increases
Solution Approach 1:
The invention enables the chlorinator to clean itself automatically through an integrated acid injection system controlled by a microprocessor. The system monitors pH levels and automatically injects acid when needed, eliminating the need for users to manually handle dangerous chemicals while maintaining effective cleaning.
Solution Approach 2:
The invention introduces an intermediary control system (microprocessor and automated injection means) between the cleaning need and the acid application. This intermediary automates the dangerous task of acid handling, allowing the system to perform cleaning safely without direct user intervention with hazardous materials.
3Ease of operation
If fixed amount of acid is injected, then cleaning process is simplified, but cleaning effectiveness deteriorates under varying conditions
Solution Approach 1:
The invention implements a feedback control system where a pH electrode continuously monitors the water's pH level and provides this information to a microprocessor. Based on this real-time feedback, the system automatically adjusts acid injection amounts and timing, ensuring effective cleaning adapts to varying water conditions, hardness levels, and deposit accumulation rates.
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
The system efficiently removes lime deposits on electrodes with minimal user intervention, reducing costs by avoiding polarity reversal and ensuring effective cleaning regardless of external conditions, thus extending electrode life and simplifying maintenance.
Implementation Method 1
measuring a pH value of the water mixture housed inside the chamber with a pH sensor
Implementation Method 2
stirring the water mixture housed inside the chamber with a stirring device so as to distribute homogeneously the pH minus acid injected
Implementation Method 3
injection of pH minus acid to dissolve lime deposits automatically
Implementation Method 4
chlorine can be generated from the electrolysis of chloride salts
Data Source
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AI summary
The present invention refers to both a cleaning method of a salt chlorinator and a salt chlorinator of the type used in swimming pools that has means to eliminate the formation of lime deposits on its electrodes without having to resort to polarity reversal thereof and comprising a chamber (1) that defines an interior space wherein a set of electrodes (2) are housed, a water inlet to the chamber (1'), a water outlet from the chamber (1"), a retention system (15) for the water inside the chamber (1), a stirring device (16) to remove the water from inside the chamber (1), an injection point (12) to inject a pH minus acid into the interior of the chamber (1) and a pH meter (13) to measure the pH of the water.