System and method for monitoring air tightness of electrolytic cell

By creating a closed space outside the electrolytic cell and filling it with tracer gas helium, and using sensor monitoring and gas flow simulation algorithms, the problems of long detection cycles and low accuracy of electrolytic cell sealing have been solved. This has enabled real-time and accurate airtightness monitoring, reduced safety hazards, and improved production safety and stability.

CN120907745APending Publication Date: 2025-11-07JIANG SU SHUANG LIANG QING NENG YUAN KE JI YOU XIAN GONG SI
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Patent Information

Application Number
CN202511169343.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-20
Publication Date
2025-11-07

AI Technical Summary

Technical Problem

Existing technologies for testing the sealing of electrolytic cells suffer from problems such as long testing cycles, low accuracy, inability to fully cover all electrolysis chambers, difficulty in detecting minute leaks, leading to decreased production efficiency and increased safety hazards.

Method used

By employing a sealing unit, a tracer medium filling unit, a tracer monitoring unit, and a PLC interlocking control unit, a closed space is formed outside the electrolytic cell, filled with tracer gas helium, and gas parameters are monitored by sensors. The leak point is located by a gas flow simulation algorithm, thus achieving real-time and accurate airtightness monitoring.

Benefits of technology

It enables real-time and precise monitoring of the airtightness of electrolytic cells, timely detection of leaks, reduction of safety hazards, support for remote management, and improvement of production safety and stability. It is applicable to electrolytic cells with different media and has wide applicability.

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Abstract

The invention discloses an air tightness monitoring system for an electrolytic cell, and the system comprises a sealing unit which comprises a sealing cavity matched with the shape of the electrolytic cell, and enables the exterior of the electrolytic cell and the sealing cavity to form a relative sealed space; the tracer medium filling unit is used for controlling the closed space to be filled with tracer gas and creating a tracer monitoring chamber of a tracer gas atmosphere; the tracer monitoring unit comprises a sensor module for detecting tracer gas parameters in real time, and the sensor module detects the tracer gas parameters; and the PLC interlocking control unit is used for receiving detection data of the tracing monitoring unit and triggering alarm and interlocking actions according to a preset alarm concentration threshold value. According to the invention, real-time accurate monitoring of the air tightness of the electrolytic cell is realized, and the problems of lagging and low precision of traditional manual sampling inspection are overcome by combining the sealed cavity, helium tracing and PLC interlocking control; safety is guaranteed through graded alarm and emergency response, new equipment and an online operation scene are adapted, and detection efficiency and production continuity are both considered.
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