Process and device for obtaining samples from the atmosphere in

Details Process and device for obtaining samples from the atmosphere in Process and device for obtaining samples from the atmosphere in

1994-11-03

1995-12-05

Wasil, Daniel D.

Induced nuclear reactions: processes, systems, and elements

Fission reactor material treatment

376245, G21C 1700

Patent

active

054736471

ABSTRACT:
A process for obtaining a sample from an atmosphere in a closed gastight vessel, preferably from a reactor safety vessel of a nuclear power station, includes passing a sample through a venturi nozzle immediately upon entry of the sample into a sample-taking container in a vessel. The sample is mixed in the venturi nozzle with a transport fluid serving as a washing liquid. Gaseous constituents of the sample being soluble and/or condensable in the washing liquid are subsequently discharged together with the washing liquid from the sample-taking container and from the vessel by triggering a pressure reduction. A device for obtaining samples from an atmosphere in a closed gastight vessel, preferably from a reactor safety vessel of a nuclear power station, includes a sample-taking container having a bottom and a given volume. A washing liquid is disposed in the sample-taking container and has a volume being at most approximately equal to half of the given volume. A venturi nozzle dips into the washing liquid in the sample-taking container above the bottom. An inlet channel leads into the sample-taking container below the venturi nozzle.

REFERENCES:
patent: 3590247 (1971-06-01), Holford
patent: 3788813 (1974-01-01), Busch
patent: 4863677 (1989-09-01), Eckardt
patent: 4873050 (1989-10-01), Eckardt
patent: 5017331 (1991-05-01), Eckardt
patent: 5223209 (1993-06-01), Eckardt
Patent Abstracts of Japan, No. 57-77942 (Kenmochi), dated May 15, 1982.
Article: Atompraxis 11, vol. 4, 1965, pp. 185-190.

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