Support arrangement for semi-membrane tank walls

B - Operations – Transporting – 65 – D

Patent

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Details

B65D 25/00 (2006.01) F17C 13/08 (2006.01)

Patent

CA 2462859

In the support arrangements for a semi-membrane tank walls described in the specification, the top and side walls (12,14) of a semi-membrane tank (10) are provided with stiffener members (16) and a surrounding tank support structure (20) has support members (22) which are connected to the stiffener members (16) through support assemblies (24,26) which provide vertical support for the tank walls (12,14) while permitting relative motion in the horizontal direction. Each support assembly (24,26) includes a bracket ( 48) affixed to one of the support members and a spool (36) affixed to a wall stiffener (16) along with a thermally insulating block (40) having an end portion (52) slidably received in the bracket (48) and having an internal groove extending in a direction orthogonal to the sliding motion of the end portion (52). The enlarged head of the spool (36) affixed to the stiffener (16) is received in the groove, thereby permitting relative motion of the tank wall (12,14) with respect to the support structure (20) in two orthogonal directions while providing load support for the tank wall (12,14) in the vertical direction.

L'invention concerne des arrangements de support pour des parois de cuve à semi-membrane. Selon l'invention, les parois supérieures et latérales (12, 14) d'une cuve à semi-membrane (10) sont pourvues d'éléments de renforcement (16), et une structure de support (20) entourant la cuve présente des éléments de support (22) qui sont reliés aux éléments de renforcement (16) au moyen d'ensembles de support (24, 26) qui constituent un support vertical pour les parois (12, 14) de la cuve tout en permettant un mouvement relatif dans le sens horizontal. Chaque ensemble de support (24, 26) comprend un support (48) fixé à un des éléments de support et une bobine (36) fixée à un élément (16) de paroi, avec un bloc d'isolation thermique (40) qui présente une partie d'extrémité (52) reçue coulissante dans le support (48) et une rainure intérieure qui s'étend dans le sens perpendiculaire au mouvement coulissant de la partie d'extrémité (52). La tête élargie de la bobine (36) fixée à un élément de renforcement (16) est reçue dans la rainure, ce qui permet d'obtenir un mouvement relatif des parois (12, 14) de la cuve par rapport à la structure de support (20) dans deux sens perpendiculaires tout en fournissant un support de charge pour les parois (12, 14) de cuve dans le sens vertical.

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