Automated Electrolytic Cell Cleaning via Carbonate Detection

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Undivided electrolytic cells used for on-site generation of oxidants face frequent failures due to contaminant buildup on electrode surfaces, which is difficult to monitor and maintain, especially in smaller systems, as existing methods require regular acid flushing and operator intervention, and are costly and inefficient.

Innovation Solution

An automated system that monitors brine flow and contaminant buildup using a carbonate detector, automatically stops and cleans the electrolytic cell by introducing acid, and resumes operation once clean, utilizing ultrasonic or magnetically actuated cleaning methods without external consumables or operator intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If undivided electrolytic cells are used for on-site generation, then device complexity is reduced, but contaminant buildup on electrodes increases maintenance requirements

Engineering Contradiction:
Improvecell structureVSAvoidmaintenance requirement
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The system automatically monitors contaminant buildup using a carbonate detector and triggers cleaning cycles without operator intervention. The control system manages the entire process from detection to cleaning execution, making the system self-maintaining and resolving the contradiction between simple structure and high maintenance needs

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

A carbonate detector continuously monitors the electrolytic cell for contaminant buildup and provides feedback to the control system. This feedback mechanism enables automatic triggering of cleaning cycles when contaminants reach threshold levels, maintaining operational efficiency without manual intervention

Inventive Principle:
Principle #23Feedback

2Reliability

If manual acid flushing is performed regularly, then contaminant buildup is removed, but operator intervention and time consumption increase

Engineering Contradiction:
Improvecell cleanlinessVSAvoidoperator intervention time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system automatically performs cleaning operations by triggering acid flushing cycles when the carbonate detector identifies contaminant buildup. The control system manages the entire cleaning process without operator intervention, eliminating time loss while maintaining cell cleanliness and reliability

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The carbonate detector continuously monitors for contaminant buildup in advance, allowing the system to trigger cleaning cycles before performance degradation occurs. This preliminary detection and action prevents catastrophic failure and maintains reliable operation

Inventive Principle:
Principle #10Preliminary action

3Object-affected harmful factors

If high quality salt is specified to minimize contaminants, then contaminant buildup is reduced, but system cost increases

Engineering Contradiction:
Improvecontaminant levelVSAvoidsalt quality cost
Core Design Contradiction:
Object-affected harmful factorsVSQuantity of substance

Solution Approach 1:

The carbonate detector provides real-time feedback on contaminant buildup regardless of salt quality. The control system adjusts cleaning cycles based on actual conditions rather than preventing all contaminants through expensive salt, achieving cost-effective contaminant management

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

Instead of preventing all contaminants through high-quality salt, the system allows contaminants to accumulate and converts this potentially harmful buildup into a detectable signal that triggers automated cleaning. This approach uses the presence of contaminants as a useful indicator rather than a purely negative factor

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

4Extent of automation

If automated monitoring and cleaning is implemented, then operator intervention is eliminated, but device complexity increases

Engineering Contradiction:
Improvecleaning automationVSAvoidsystem complexity
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The control system serves multiple functions: it manages normal oxidant production, monitors carbonate buildup through the detector, triggers cleaning cycles, and manages acid dosing. This multi-functionality justifies the added complexity by consolidating control of all operations into a single automated system

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 solution provides a low-maintenance, cost-effective, and reliable method for maintaining electrolytic cells by automatically detecting and removing contaminants, reducing the need for frequent acid flushing and operator intervention, ensuring continuous production of oxidants.

Implementation Method 1

detecting a level of contaminant buildup... The detecting step preferably comprises utilizing a carbonate detector

Methodology Applied
Scientific EffectCarbonate detection:

Implementation Method 2

automatically cleaning the electrolytic cell... The cleaning step preferably comprises providing brine to an acid generating electrolytic cell, generating an acid in the acid generating electrolytic cell, and introducing the acid into the electrolytic cell

Methodology Applied
Scientific EffectAcid dissolution:

Implementation Method 3

utilizing ultrasonic or magnetically actuated cleaning methods

Methodology Applied
Scientific EffectUltrasonic cleaning: Ultrasonic Vibration

Implementation Method 4

utilizing ultrasonic or magnetically actuated cleaning methods

Methodology Applied
Scientific EffectMagnetic actuation: Magnetic Field

Implementation Method 5

producing one or more oxidants in the electrolytic cell... electrolytic technologies utilizing dimensionally stable anodes have been developed to produce mixed-oxidants and sodium hypochlorite solutions from a sodium chloride brine solution

Methodology Applied
Scientific EffectElectrolysis: Electrolysis

Data Source

PatentUS7922890B2Low maintenance on-site generator
Publication Date: 2011.04.12 DE NORA HOLDINGS US INC
  • US7922890B2 patent drawing
  • US7922890B2 patent drawing

AI summary

Method and apparatus for a low maintenance, high reliability on-site electrolytic generator incorporating automatic cell monitoring for contaminant film buildup, as well as automatically removing or cleaning the contaminant film. This method and apparatus preferably does not require human intervention to clean.