GAS SAMPLE SELECTOR

A gas analyzer system (100, 200, 300) and methods of reducing sample carryover in a gas sample selector (102, 202, 302). The gas analyzer system (100, 200, 300) includes a gas chromatograph (104, 204, 304) and a gas sample selector (102, 202, 302). The gas sample selector (102, 202, 302) includes a...

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Bibliographic Details
Main Authors Yao, Wei-Jun, Zhu, Kaike, Chen, Chenxi
Format Patent
LanguageEnglish
Published 10.11.2022
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:A gas analyzer system (100, 200, 300) and methods of reducing sample carryover in a gas sample selector (102, 202, 302). The gas analyzer system (100, 200, 300) includes a gas chromatograph (104, 204, 304) and a gas sample selector (102, 202, 302). The gas sample selector (102, 202, 302) includes a multi-position selector valve (130, 230, 330), a flush valve (140, 240, 340), and a purge valve (150, 250, 350), as well as conduits providing flowpaths between them. When switching the flush valve (140, 240, 340) to connect the flush valve (140, 240, 340) vent and flush valve (140, 240, 340) outlet and flowing purge gas through the purge valve (150, 250, 350) port, the purge gas will flow to the selector (102, 202, 302) exit and to the flush valve (140, 240, 340) vent to remove sample gas from the flowpaths.
Bibliography:Application Number: US201917771366