LIQUEFIED NATURAL GAS TANK PRESSURE CONTROL SYSTEM Russian patent published in 2023 - IPC F17C9/04 

FIELD: pressure control systems.

SUBSTANCE: present invention relates to a pressure control system (100) in a tank (200) installed on a ship, wherein the tank (200) is configured to accommodate cargo in the form of gas (NG), and the pressure control system (100) comprises: at least one refrigeration production unit (110), comprising at least a first heat exchanger (113) configured to vaporize the gas (GN) received by the first heat exchanger (113) in a liquid state, and at least one second heat exchanger (115) configured to the possibility of cooling the gas (GN) and adjusting the pressure in the tank (200), while the first heat exchanger (113) is configured to supply the evaporated gas (GN) to the device (210, 220) consuming gas (GN); at least one block (120) for condensing the gas (GN) evaporated in the first heat exchanger (113), this block containing at least one heat exchanger (121) configured to carry out heat exchange between a part of the gas (GN) evaporated in the first heat exchanger (113), and gas (GN) withdrawn from the tank (200) in liquid state.

EFFECT: effective performance.

20 cl, 8 dwg