Chromatograph carrier gas switching device

The utility model relates to a chromatograph carrier gas switching device. The chromatograph carrier gas switching device comprises two carrier gas cylinders, wherein each carrier gas cylinder is connected with a voltage stabilizing valve by a gas cylinder pressure reducing valve and a carrier gas c...

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Bibliographic Details
Main Authors LIU YULIANG, ZHAO YUNHE, LI ZONGHUI, WANG FEIFEI
Format Patent
LanguageChinese
English
Published 12.09.2012
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:The utility model relates to a chromatograph carrier gas switching device. The chromatograph carrier gas switching device comprises two carrier gas cylinders, wherein each carrier gas cylinder is connected with a voltage stabilizing valve by a gas cylinder pressure reducing valve and a carrier gas cut-off valve; and the voltage stabilizing valve is connected with a chromatograph carrier gas passage. According to the utility model, the carrier gas cylinders are replaced without stopping gas in a fluctuation-free way; and the air brought into the device during the replacement of carrier gas cylinders is effectively blown off in time.
Bibliography:Application Number: CN2012229126U