초록 ▼

Watertight and thermally insulating tank built into the bearing structure of a ship, said tank comprising two successive watertightness barriers, one being a primary one in contact with the product contained in the tank and the other being a secondary one placed between the primary barrier and the b

Watertight and thermally insulating tank built into the bearing structure of a ship, said tank comprising two successive watertightness barriers, one being a primary one in contact with the product contained in the tank and the other being a secondary one placed between the primary barrier and the bearing structure, at least one thermally insulating barrier being provided between the bearing structure and the secondary watertightness barrier and/or between the two watertightness barriers, each thermally insulating barrier consisting of a number of caissons (102) of roughly parallelepipedal overall shape, each caisson having a bottom panel (105) and a top panel (106) made of plywood, characterized in that the panels of each caisson are spaced apart by a number of spacer pieces (103) which consist of thin sheets of plywood, extending at right angles to said panels, each caisson being at least partially filled with blocks of foam (104), bonded over a substantial part of the height of each spacer piece, to prevent the spacer pieces from buckling under load.

대표청구항 ▼

1. Watertight and thermally insulating tank built into a bearing structure of a ship, said tank comprising two successive watertightness barriers, one being a primary watertightness barrier in contact with the product contained in the tank and the other being a secondary watertightness barrier place

1. Watertight and thermally insulating tank built into a bearing structure of a ship, said tank comprising two successive watertightness barriers, one being a primary watertightness barrier in contact with the product contained in the tank and the other being a secondary watertightness barrier placed between the primary barrier and the bearing structure, at least one thermally insulating-barrier being provided between the bearing structure and the secondary watertightness barrier or between the two watertightness barriers, each at least one thermally insulating-barrier comprising a number of caissons of roughly parallelepipedal overall shape, each caisson comprising a bottom panel and a top panel made of plywood, wherein the panels of each caisson are spaced apart by a number of spacer pieces comprising thin sheets of plywood, extending at right angles to said panels, each caisson being at least partially filled with blocks of foam bonded over a substantial part of the height of each spacer piece, to prevent the spacer pieces from buckling under load.