公开(公告)号：US20230375503A1

公开(公告)日：2023-11-23

申请号：US18030877

申请日：2021-10-06

申请人： HORIBA, LTD.

发明人： Ryota OCHIAI ,  Tomoshi YOSHIMURA ,  Ma Camille Corrales LACDAN

IPC分类号： G01N27/626 ,  G01N1/22

CPC分类号： G01N27/626 ,  G01N1/2252 ,  G01N2001/2255

摘要： A gas analysis device that comprises a first flow channel through which a sample gas flows, a first analyzer that is arranged in the first flow channel and that performs wet-measurement of a total hydrocarbon concentration in the sample gas, a second flow channel through which the sample gas flows, a non-methane cutter that is arranged in the second flow channel and that removes a hydrocarbon component other than methane in the sample gas, a second analyzer that is arranged downstream of the non-methane cutter in the second flow channel and that performs dry-measurement of a concentration of methane in the sample gas, and a calculation section that calculates a concentration of the hydrocarbon component other than methane in the sample gas using the total hydrocarbon concentration obtained by the first analyzer and a corrected concentration of methane, which is a moisture corrected methane concentration, obtained by the second analyzer.

公开(公告)号：US20200057024A1

公开(公告)日：2020-02-20

申请号：US16536707

申请日：2019-08-09

申请人： HORIBA, LTD.

发明人： Ryota OCHIAI ,  Tomoshi YOSHIMURA ,  Ma Camille Corrales LACDAN

IPC分类号： G01N27/62 ,  G01N1/40

摘要： The present invention includes a first flow path through which a sample gas flows, a first analyzer that is provided in the first flow path to measure total hydrocarbon concentration in the sample gas, a second flow path through which the sample gas flows, a non-methane non-ethane cutter that is provided in the second flow path to remove the hydrocarbon components other than the methane and the ethane in the sample gas, a second analyzer that is provided downstream of the non-methane non-ethane cutter in the second flow path to measure the total methane ethane concentration of the methane and the ethane in the sample gas, and a calculation part that calculates the concentration of the hydrocarbon components other than the methane and the ethane in the sample gas with use of the total hydrocarbon concentration by the first analyzer and the total methane ethane concentration by the second analyzer.

公开(公告)号：US20190064035A1

公开(公告)日：2019-02-28

申请号：US16053145

申请日：2018-08-02

申请人： HORIBA, Ltd.

发明人： Ryota OCHIAI ,  Tomoshi YOSHIMURA

IPC分类号： G01M15/10

摘要： The present claimed invention provides an exhaust gas analysis system using a dilution sampling method with an exhaust gas analysis device that can calculate a measured value such as a concentration of a component to be measured in an exhaust gas with higher accuracy. The exhaust gas analysis device analyzes a diluted exhaust gas, and comprises an analyzing part that measures a component to be measured in the diluted exhaust gas, an introducing path that introduces the diluted exhaust gas into the analyzing part and that has a resistance part, a viscous component concentration determining part that determines a concentration of a viscous component that is in the diluted exhaust gas and that is different from the component to be measured, and a correction part that corrects the measured value measured by the analyzing part in accordance with the concentration of the viscous component.