Heated enclosure purge system

F - Mech Eng,Light,Heat,Weapons – 17 – D

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F17D 3/10 (2006.01)

Patent

CA 2403509

A combination purging system and sampling system is provided for sampling gas from a pipeline. A flow path 40 provides fluid communication between a sample bottle 45 and the pipeline. The sample bottle 45 is initially filled with an inert gas for purging air from the flow path 40 and venting to atmosphere. A supply valve 46 controls flow between the pipeline and the flow path 40, and a bleed valve 35 controls venting from the flow path 40 to atmosphere. The relationship and positioning between the valves and the flow path prevents condensation from entering the sampled gas while purging and sampling.

Une combinaison de système de purge et de système d'échantillonnage est prévue pour l'échantillonnage des gaz provenant d'une pipeline. Un trajet d'écoulement 40 assure une communication fluidique entre une bouteille de prélèvement 45 et la pipeline. La bouteille de prélèvement 45 est initialement remplie d'un gaz inerte pour purger de l'air à partir du trajet d'écoulement 40 et pour l'évacuer vers l'atmosphère. Une vanne d'alimentation 46 commande l'écoulement entre la pipeline et le trajet d'écoulement 40, et une vanne de purge 35 régule l'évacuation du trajet d'écoulement 40 à l'atmosphère. La relation et le positionnement entre les vannes et le trajet d'écoulement empêchent l'entrée de condensation dans l'échantillon de gaz pendant la purge et l'échantillonnage.

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