Spring-loaded secondary seal for floating-roof storage tank

Details Spring-loaded secondary seal for floating-roof storage tank Spring-loaded secondary seal for floating-roof storage tank

B - Operations, Transporting

65

D

B65D 88/46 (2006.01)

Patent

CA 2511776

A low-profile secondary seal for floating-roof storage tanks has a tip seal that includes a series of segmental adapter plates connected to the shoe plates. A tip seal element (32) is mounted on the adapter plates (34). A fabric (36) extends between the tip seal and the floating roof (12). A pusher is hinged to the floating roof, and includes a pusher bar with two ends that are disposed in a sliding arrangement against the adapter plates. A spring (38) is connected to the pusher at an inclined angle, providing a mechanical advantage as the spring biases the pusher and pusher bar outwardly against the plates, pressing the tip seal against the tank shell.

La présente invention concerne un joint auxiliaire à profil surbaissé destiné à des réservoirs de stockage à couvercle flottant, qui possède un joint à segmentation d'arête qui comprend une série de plaques d'adaptation en segment connectées aux plaques de semelle. Un élément joint à segmentation d'arête (32) est monté sur les plaques d'adaptation (34). Une toile (36) s'étend entre le joint et le couvercle (12) flottant. Un élément pousseur est articulé au couvercle flottant et comprend une barre poussante avec deux extrémités qui sont agencées coulissant contre les plaques d'adaptation. Un ressort (38) est connecté à l'élément pousseur à un angle incliné, offrant un avantage mécanique lorsque le ressort presse l'élément pousseur et la barre poussante vers l'extérieur contre les plaques, pressant le joint à segmentation d'arête contre l'enveloppe du réservoir.

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