BANCO DE TOMA DE MUESTRAS LIQUIDAS

摘要

1,087,953. Sampling liquids. COMMISSARIAT A L'ENERGIE ATOMIQUE. April 14, 1965 [April 20, 1964], No. 16120/65. Heading B8N. [Also in Division B4] Apparatus for taking a sample of radioactive liquid L from a selected one of a number of chambers R (only one shown) comprises a tubular needle 8 extending into each chamber and terminating at the upper end 9 in a member 6 normally closed by a plug 10. The members 6 lie on circle in the plane U-U and having its centre on the axis V-V. The members 6 are contained in a glove box A having openings 1 with transparent walls and a porthole 2, the top 16 of the box carrying a support B rotatable about the axis V-V by a hand wheel 20. An inclined tool carrier D is rotatable and axially slidable in the support B about an axis W-W, these movements being controlled by jacks (Figs. 6-8, not shown). As shown, there are three tools E, F, and G, tool E serving to remove and replace the plugs 10 (Figs. 9-13, not shown), tool F (Figs. 14-16, not shown) serving for filling bottles disposed in this tool and previously put under a vacuum, and tool G (Figs. 17, 18, not shown) serving to rinse the needle 8 through which the sample has been taken. The geometry of the apparatus enables the tool carrier D to be moved opposite a selected member 6 by rotating the support B and a selected tool E, F or G is aligned with the member 6 by rotating the carrier in the support. In operation the tool F is first aligned with a particular needle 8a connected to a vacuum source and then moved axially towards the needle end 9 which pierces a rubber cap in an inverted sample bottle within the tool to induce a vacuum therein. The tool E is next aligned with the selected member 6 to remove the plug 10, the tool F is next engaged with the needle end 9 and the liquid sample from a chamber R is drawn into the bottle by the vacuum. The tool G is finally aligned with the needle end 9 to rinse the needle. The carrier D is brought to a discharging station where the filled bottle is discharged from the lower end of the tool F and an empty bottle is inserted at the top.