LIQUEFIED GAS STORAGE, A SHIP INCLUDING A STORAGE, A COLD LIQUID PRODUCT TRANSFER SYSTEM ON A SHIP AND A METHOD FOR LOADING OR UNLOADING A SHIP Russian patent published in 2023 - IPC F17C3/06 F17C13/08 B63B25/16 

FIELD: liquefied gas storage.

SUBSTANCE: group of inventions relates to a liquefied gas storage (1) and a sealed and heat-insulating tank (71). The storage (1) of liquefied gas includes a supporting structure (2) and a sealed heat-insulating tank (71) placed in the supporting structure (2). The sealed and heat-insulating tank (71) has a main structure (6) formed by a group of tank walls connected to each other and attached to a supporting structure (2). The main structure (6) forms the interior space of the storage. The main structure (6) contains one sealing membrane (17, 19) and one heat-insulating barrier (16, 18). The thermal barrier (16, 18) is located between the sealing membrane (17, 19) and the supporting structure (2). The load-bearing structure (2) has an upper load-bearing wall (3) which is essentially flat. The tank (71) has a cover (12) located in the loading and unloading opening (10). The cover (12) contains the top wall (22) of the cover, the bottom wall (23) of the cover and the heat-insulating structure (24) located between the bottom wall (23) of the cover and the top wall (22) of the cover. The lower wall (23) of the lid has a group of flat metal plates hermetically connected to each other, provided with one main partition and two side closing strips (60, 61), each of which is designed to close in an airtight manner and connect the said lower wall (23) of the lid with the main structure (6). One of the side cover strips (60) is adjacent to the structural insulation (40) and the side cover strip (60) is mechanically attached to the adjacent structural insulation (40).

EFFECT: increase in the tightness and strength of the tank.

18 cl, 10 dwg