Leak-resistant lining for tanks and a method for equipping...

B - Operations – Transporting – 65 – D

Patent

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B65D 90/50 (2006.01)

Patent

CA 2387587

The invention relates to a leak-resistant lining for tanks used for the storage of water contaminating substances. The invention further relates to a method for equipping tanks with a leak-resistant lining. The aim of the invention is to overcome the disadvantages of the known state of the art and produce a leak-resistant coating which is suitable for universal tanks of all construction types, in particular, those with fittings near the tank-floor, which can be simply assembled and guarantees a reliable leak-control system in the tank flooring and tank walls. A solution is disclosed, whereby an angled fixing bracket (4) is fitted in position around the edge between the tank wall (1) and the tank floor (2), which comprises two faces (4a, 4b), running parallel to the tank wall (1) and the tank floor (2) respectively. The face (4a), running parallel to the tank wall (1), has a joint with the tank wall (1) which is resistant to the contained substance. A cavity (7) exists between the angled fixing bracket (4) and the adjacent sections of the tank wall and tank floor. Said cavity (7) is suitable for leak control. The film or sheet (5) laying on the insert (3) which defines the cavity is fixed in a substance- resistant manner to that face (4b) of the angled fixing bracket (4) parallel to the tank floor (2).

L'invention concerne un revêtement servant à empêcher les fuites, au moyen de films plastiques souples, dans des réservoirs destinés au stockage de substances qui risquent de contaminer des eaux. L'invention concerne également un procédé pour équiper des réservoirs d'un tel revêtement antifuite. L'invention vise à supprimer les inconvénients de la technique antérieure et à créer un revêtement antifuite qui puisse s'utiliser dans des réservoirs universels de différents types, notamment dans les réservoirs présentant des éléments encastrés à proximité du fond, qui soit facile à monter et qui permette un contrôle fiable du système antifuite au niveau du fond et des parois des réservoirs. A cet effet, une équerre de fixation (4) est placée de manière fixe et continue, ladite équerre comportant des branches (4a, 4b) qui sont parallèles respectivement à la paroi (1) et au fond (2) du réservoir. La branche (4a) parallèle à la paroi (1) est raccordée à cette dernière de manière étanche à la substance contenue dans le réservoir. Une cavité (7) permettant un contrôle des fuites est ménagée entre l'équerre de fixation (4) et les parties des parois ou du fond adjacentes à cette dernière. Le film ou la bande (5) appliqué(e) sur l'insert (3) formant la cavité est fixé(e) de manière étanche sur la branche (4b) de l'équerre de fixation (4), qui est parallèle au fond (2) du réservoir.

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