| 摘要 |
The invention relates to a corner structure suited to a sealed and thermally insulating tank for storing a fluid comprising a secondary thermal insulation barrier held on a bearing structure, a secondary sealing membrane, a primary thermal insulation barrier and a primary sealing membrane which is intended to be in contact with the fluid contained in the tank, said corner structure comprising: - a first and a second panel (1, 2) forming a corner of the secondary thermal insulation barrier and comprising an external face intended to face the bearing structure and an internal face; - a corner arrangement (8, 9, 10) of the secondary sealing membrane, which arrangement is fixed to the first and second panels (1, 2); - a first and a second primary thermal insulation barrier insulating block (13, 14) which are fixed respectively to the first and second panels (1, 2) and rest against the corner arrangement (8, 9, 10) of the second sealing membrane; and - a primary sealing barrier angle bracket (15) comprising a first and a second flange (15a, 15b) which are fixed respectively to the first and second insulating blocks (1, 2); in which corner structure: - the first and second panels (1, 2) each comprise a metal mounting plate fixed to the internal face thereof and bearing a member for the attachment of an insulating block; and - the corner arrangement of the secondary sealing membrane is metallic, has through-orifices for the fixings of the insulating blocks and is welded, around the periphery of said orifices, to the metal mounting plates bearing said fixings so as to keep the secondary sealing membrane fluidtight. |
