Hydrogen production electrolyzer bubble online monitoring method, system, device, medium and product

By applying multi-frequency AC test signals to the electrolyzer to monitor its real-time response, a bubble state analysis model was established, solving the problem of bubble state monitoring in water electrolysis hydrogen production systems at high altitudes and ensuring the safe and stable operation of the system.

CN122428339APending Publication Date: 2026-07-21CHINA THREE GORGES CORPORATION
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA THREE GORGES CORPORATION
Filing Date
2026-04-24
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

Hydrogen production systems produced by water electrolysis in high-altitude areas face risks such as gas blockage caused by bubble volume expansion, local dry burning caused by gas film coverage, and explosion risks due to hydrogen-oxygen cross-contamination under low-load conditions. Existing technologies make it difficult to achieve direct, online, and sensitive bubble status monitoring and safety control.

Method used

By applying multi-frequency AC test signals, the real-time response information of the electrolytic cell is monitored, a bubble state analysis model is established, the bubble coverage and desorption activity are quantified, online monitoring of bubbles inside the electrolytic cell is realized, and early warning is given based on the model results.

Benefits of technology

It enables direct, online monitoring of the bubble state inside the electrolyzer, effectively preventing risks of gas blockage, dry burning, and hydrogen-oxygen cross-contamination, and ensuring the safe operation of the hydrogen production system.

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Abstract

The present disclosure belongs to the technical field of water electrolysis hydrogen production, and provides a hydrogen production electrolytic tank bubble online monitoring method, system, equipment, medium and product. The method comprises: measuring the environment and operation parameters of the electrolytic tank to determine the reference resistance value of the electrolytic tank; injecting a multi-frequency alternating current test signal into the running electrolytic tank to collect real-time response information of the electrolytic tank; establishing a bubble state analysis model based on the reference resistance value and the real-time response information; and making a monitoring response according to the real-time calculation result of the bubble state analysis model and the early warning condition. The present disclosure quantifies the coverage degree of the bubbles and the strength of the desorption activity by applying a specific test signal and monitoring the system response, thereby realizing direct, online and sensitive monitoring of the bubbles inside the electrolytic tank.
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