Disconnectable mooring system

B - Operations – Transporting – 63 – B

Patent

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Details

B63B 22/02 (2006.01) B63B 21/50 (2006.01)

Patent

CA 2092522

An improved detachable mooring system is disclosed of the kind including a rotatable turret mounted on the vessel and a buoyant spider buoy secured by chains to the sea floor, which may be selectively connected by means of a hydraulic connector to the bottom of the turret. The improvement relates to manufacturing the turret in three sections with top and bottom sections joined ultimately by a middle section. The top section includes a machined surface for connection of the bearing retainer ring to the upper roller bearing. The bottom section includes a machined cylindrical journal surface for connection to the radial support bearing. Another improvement relates to testing during manufacture of the mating and connection between the top of the spider buoy and the bottom of the turret prior to deployment of the vessel and spider buoy in the sea. Such testing occurs before the bottom section of the turret is installed on the vessel and joined to the turret middle and upper sections.

Système d'amarrage funiculaire détachable de version améliorée de type comportant une tourelle montée sur le navire et une bouée araignée destinée à l'arrimage au fond marin au moyen de chaînes, laquelle peut être fixée à la partie inférieure de la tourelle à l'aide d'un connecteur hydraulique. L'amélioration réside dans le fait que la tourelle est fabriquée en trois sections, les parties supérieure et inférieure étant reliées par une section intermédiaire. La partie supérieure comporte une surface usinée pour le raccordement de la bague de retenue du roulement à rouleaux supérieur. La section inférieure comporte un tourillon pour accouplement au roulement radial. Une autre amélioration se rapporte aux essais effectués au cours de la fabrication de l'interface entre la partie supérieure de la bouée et la partie inférieure de la tourelle avant la séparation des deux éléments en mer. Ces essais sont effectués avant le montage de la section inférieure de la tourelle sur le navire et son raccordement aux sections intermédiaire et supérieure.

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