Water electrolysis evaluation device and water electrolysis evaluation method

The water electrolysis evaluation device separates liquid water and water vapor from discharge gases using specialized storage units and sensors, enhancing the accuracy of performance evaluation in water electrolysis devices.

WO2026133997A1PCT designated stage Publication Date: 2026-06-25HORIBA LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
HORIBA LTD
Filing Date
2025-12-05
Publication Date
2026-06-25

AI Technical Summary

Technical Problem

Existing water electrolysis devices face challenges in accurately evaluating their performance due to the mixing of liquid water and water vapor in the discharge gases, which complicates the analysis of oxygen and hydrogen production efficiency.

Method used

A water electrolysis evaluation device and method that includes separate storage units to segregate liquid water and water vapor from the exhaust gases, utilizing heat exchangers and gas-liquid separation tanks to efficiently recover and measure these components, along with sensors to monitor dew points and temperatures, allowing for precise evaluation under varying pressure conditions.

Benefits of technology

Enables accurate evaluation of water electrolysis devices by effectively separating and recovering liquid water and water vapor, thereby improving the assessment of hydrogen and oxygen production efficiency and operational control.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure JP2025042471_25062026_PF_FP_ABST
    Figure JP2025042471_25062026_PF_FP_ABST
Patent Text Reader

Abstract

The present invention provides a water electrolysis evaluation device 100 which accurately evaluates a water electrolysis device by separating or recovering liquid water and water vapor discharged together with an oxygen gas or a hydrogen gas, and which evaluates a water electrolysis device W that electrolyzes water so as to generate an oxygen gas and a hydrogen gas. The water electrolysis evaluation device 100 comprises: a first retainer unit 521 that separates liquid water which is discharged, together with an exhaust gas containing an oxygen gas or a hydrogen gas, from an anode W1 or a cathode W2 of the water electrolysis device W; and a second retainer unit 522 that condenses and separates water vapor which is contained in the exhaust gas that has passed through the first gas-liquid separation unit 521.
Need to check novelty before this filing date? Find Prior Art