Exhaust gas sampling apparatus
The present invention is one that, in the case where a sampling part is configured to include a plurality of venturis, with suppressing an increase in size of an apparatus and an increase in cost, accurately obtains a diluent gas flow rate in accordance with a diluted exhaust gas flow rate obtained...
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| Format: | Patent |
| Sprache: | eng ; fre ; ger |
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| Zusammenfassung: | The present invention is one that, in the case where a sampling part is configured to include a plurality of venturis, with suppressing an increase in size of an apparatus and an increase in cost, accurately obtains a diluent gas flow rate in accordance with a diluted exhaust gas flow rate obtained on the basis of a combination among the plurality of venturis, in which the sampling part 8 collecting part of diluted exhaust gas is configured to parallel connect the plurality of venturis that control the flow rate of the diluted exhaust gas, and a flow rate control part 9 provided in a diluent gas sampling flow path SL2 is configured to parallel connect a plurality of venturis that control the flow rate of diluent gas to be introduced into a diluent gas analyzing device. |
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