INSTALLATION FOR STORAGE AND TRANSPORTATION OF CRYOGENIC FLUID ON VESSEL Russian patent published in 2022 - IPC B63B27/24 F17C13/08 F17C3/02 

FIELD: transportation.

SUBSTANCE: group of inventions relates to an installation for storage and transportation of cryogenic fluid on a vessel. The installation contains sealed and heat-insulating tank (2). Tank (2) has an upper wall containing, in a direction of a wall thickness from an outer side to an inner side of tank (2), main heat-insulating barrier (11) and main sealing membrane (10) intended for a contact with cryogenic fluid. The tank has sealed pipe (14) passing through the upper wall of tank (2). Pipe (14) contains lower section (15), the first end of which is located inside relatively to the upper wall of tank (2), and the second end is located outside relatively to the upper wall of tank (2) in the direction of thickness of the upper wall, and upper section (16) attached to the second end of lower section (15). Lower section (15), being in contact with the mentioned cryogenic fluid, is made of an alloy with a low thermal expansion coefficient, whereas upper section (16) contains stainless steel. The alloy with the low thermal expansion coefficient has a thermal expansion coefficient smaller than a thermal expansion coefficient of the mentioned stainless steel. Main sealing membrane (10) is tightly attached to lower section (15) of pipe (14) along a perimeter of pipe (14).

EFFECT: creation of a tank, in which risks of the formation of isolated pockets with gas in a steam phase are reduced.

17 cl, 8 dwg