Method and sampling system for the taking of a sample from...

Details Method and sampling system for the taking of a sample from... Method and sampling system for the taking of a sample from...

G - Physics

21

C

G21C 17/028 (2006.01) G01N 1/22 (2006.01)

Patent

CA 2581497

The invention relates to a sampling system (1) for taking a sample from the atmosphere in a reactor containment housing (2) with a sampling line (8), opening out in the reactor containment housing (2), connected to a vacuum system (12) and an analytical system (14), permitting the preparation of a sample suitable for the determination of a particularly reliable and precise measured value for the gas components of the containment atmosphere. According to the invention, the sampling line (8) is hence provided with an initial gas throttling device (30), connected to the atmosphere in the reactor containment housing (2). The sample can thus be transferred to the analytical system (14) from the reactor containment in the overheated condition.

L'invention concerne un système d'échantillonnage (1) permettant d'extraire un échantillon de l'atmosphère dans une enceinte de confinement (2) d'une installation nucléaire comprenant un conduit d'échantillonnage (8) débouchant dans une enceinte de confinement (2), et relié au système d'analyse. La mise à disposition d'une valeur de mesure précise et fiable, destinée à déterminer des quantités gazeuses du contenu de l'échantillon convenant au contenu atmosphérique. Le conduit d'échantillonnage (8) de l'invention est inséré côté gazeux par une liaison avec l'atmosphère dans l'enceinte de confinement (2) à un dispositif d'étranglement (30). L'échantillon peut être transporté dans un état surchauffé de l'enceinte de confinement (2) dans le système d'analyse (14).

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