Sealing closure for high pressure vessels in microwave...

B - Operations – Transporting – 01 – J

Patent

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Details

B01J 19/12 (2006.01) B01J 19/02 (2006.01) G01N 1/44 (2006.01) H05B 6/76 (2006.01)

Patent

CA 2375273

A dynamic sealing structure for pressure vessels used in microwave assisted chemistry is disclosed. The structure includes a cylindrical vessel linear and a removable liner cap, each formed of a microwave transparent material. The liner has a circular mouth with a lip formed of a respective first and second beveled edges, with the first beveled edge forming an interior edge of the circular mouth and the second beveled edge forming an exterior edge of the circular mouth. The cap includes respective interior and exterior faces, with a sleeve depending from the interior face and having circumference that engages the interior surface of the vessel liner for being urged under pressure against the interior surface of the vessel liner. The interior face of the cap comprising a circular channel outward of the sleeve and having a circumference that engages the lip of the vessel liner, and with the channel comprising two beveled edges that respectively engage both beveled edges of the lip of the liner.

L'invention concerne une structure d'étanchéité dynamique pour récipient sous pression utilisé en chimie assistée par hyperfréquences. La structure comprend un revêtement (11) de récipient cylindrique ainsi qu'un couvercle (12) de revêtement amovible, chacun constitué d'un matériau transparent aux hyperfréquences. Le revêtement (11) présente une bouche circulaire (26) dotée d'une lèvre (31) constituée de premier et second bords biseautés respectifs (32, 33), le premier bord biseauté (32) formant un bord intérieur de la bouche circulaire (26) et le second bord biseauté (33) formant un bord extérieur de la bouche circulaire (26). Le couvercle (12) comprend des faces intérieure et extérieure respectives (27, 30) présentant un manchon (24) pendant de la face intérieure (27) et présentant une circonférence venant au contact de la surface intérieure du revêtement (11) du récipient, destiné à être poussé sous pression contre la surface intérieure du revêtement du récipient. La face intérieure du couvercle comprend un canal circulaire (25) à l'extérieur du manchon (24) et présente une circonférence venant au contact de la lèvre (31) du revêtement (11) du récipient, le canal (25) présentant deux bords biseautés (34, 35) venant respectivement l'un et l'autre au contact des bords biseautés de la lèvre (31) du revêtement (11).

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