Mixed flow sampling mechanism, mixed flow sampling device and electrolytic water system

By incorporating the turbulence structure and micro-cavity design of the mixed-flow sampling mechanism, the problem of slow sampling response in water electrolysis systems has been solved, enabling rapid and accurate gas-liquid separation and detection. This adapts to various working conditions and improves system safety and detection accuracy.

CN122238008APending Publication Date: 2026-06-19HEFEI KEWELL POWER SYST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HEFEI KEWELL POWER SYST CO LTD
Filing Date
2026-03-25
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing water electrolysis systems have slow sampling response speeds and cannot detect changes in hydrogen and oxygen content in a timely manner, leading to safety risks and product quality issues.

Method used

The system employs a mixed-flow sampling mechanism, including a turbulence structure and a micro-cavity design. It achieves rapid enrichment and separation of the gas phase through a gas guide tube and a water-proof and breathable mechanism. Combined with a cooling and dehumidification module and a sampling and analysis module, it ensures sampling accuracy and response speed.

Benefits of technology

It achieves a sampling response speed of less than 60 seconds, complete gas-liquid separation, high detection accuracy, adaptability to rapid load changes in water electrolysis systems, and coverage of various operating scenarios, achieving simultaneous breakthroughs in ultra-fast response, complete separation, high precision, and low cost.

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Abstract

This invention discloses a mixed-flow sampling mechanism, a mixed-flow sampling device, and an electrolytic water system. The mixed-flow sampling mechanism includes at least one inlet, at least one outlet, and at least one sampling port. An internal turbulence structure is formed to drive the fluid to turbulence. A gas chamber for gas phase enrichment is formed at the top of the turbulence structure. A gas guide tube is provided within the mixed-flow sampling mechanism, with one end extending into the gas chamber and the other end connected to the sampling port. The gas chamber and the inner cavity of the gas guide tube together constitute a micro-cavity with a volume ≤100mL. The beneficial effects of this invention are: it eliminates the need for separators with a volume ≥100mL in existing technologies; through the turbulence structure, the gas-liquid mixture is homogenized, and a large amount of gas phase is enriched in the gas chamber. The gas chamber and the inner cavity of the gas guide tube together constitute a micro-cavity, where the gas phase is continuously replaced. This not only ensures stable gas supply and accurate sampling, but also, with a total volume ≤100mL, far smaller than the volume of existing separators, it reduces the replacement base from the source.
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