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US 8,409,504 B2Granted
Method for supplying gas mixtures for an analyzer
AssigneeL'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
InventorsValerie Bossoutrot, Joerg Koppel, Severine Lepic, Herve Paoli
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Abstract
The invention relates to a fluid analysis device that comprises an analyzer and a system for supplying an instrumentation gas to said analyzer, characterized in that the supply system includes at least one mixer generating said instrumentation gas, and at least one purifier located downstream from said at least one mixer and upstream from said analyzer.
Claims9
A device for analyzing a fluid, comprising:
- an analyzer;
- and
- a feed system for supplying said analyzer with instrumentation gases, characterized in that the feed system comprises at least one mixer that generates said instrumentation gas and at least one purifier located downstream of said at least one mixer and upstream of the analyzer, the feed system further defined as comprising:
- four instrument calibration sources containing hydrogen, helium, oxygen and nitrogen (G1-G4) in fluid communication with the feed system and wherein the feed system is configured to form two instrumentation gas mixtures (G1-2, G3-4), one being a hydrogen/helium mixture and the other an oxygen/nitrogen mixture;
- the at least one mixer comprises first and second mixers, the first mixer configured to mix the hydrogen and helium and the second mixer generates the configured to mix the oxygen and the nitrogen;
- the at least one purifier comprises first and second purifiers;
- the first purifier being located downstream of the first mixer and upstream of the analyzer;
- and
- the second purifier being located downstream of the second mixer and upstream of the analyzer.
6 more elements
Dependencies are inferred from the claim text.