Cryogenic fluid storage tank

A tank for storing a two-phase mixture of liquid and of gaseous cryogenic fluid, comprising a first casing intended to contain the cryogenic fluid;

• at least one drawing-off pipe having an upstream end connected to the first casing and being configured to allow fluid contained in the first casing to be drawn-off toward the outside of the tank;
• a circuit for filling the tank;
• a set of one or more sensor(s) measuring the pressure in the first casing;
• a pipe for pressurizing the first casing comprising a first end connected to the lower end of the first casing and a second end connected to the upper part of the first casing;
• an air venting regulator connected to the upper end of the first casing;
• and a vaporized gas drawing-off pipe comprising a first upstream end connected to the upper part of the first casing for drawing-off fluid in the gaseous state, wherein:
• the pressurization pipe comprises at least one regulating valve and a heater;
• the regulating valve of the pressurization pipe is configured to automatically maintain the pressure in the first casing at a minimum determined pressure value by ensuring, when the pressure in the first casing is lower than said minimum value, that the liquid taken from the first casing is circulated in the heater and that this heated fluid is re-introduced into the first casing;
• the vaporized gas drawing-off pipe comprises a vaporizer and at least one regulating valve toward a downstream distribution end;
• and
• at least two from among,
• the regulating valve of the pressurization pipe,
• the air venting regulator, and
• the regulating valve of the vaporized gas drawing-off pipe,
• are made up of a same automated regulating valve that comprises a plurality of inlets and outlets respectively connected to the first end of the pressurization pipe of the first casing, to the first upstream end of the drawing-off pipe, to the downstream distribution end of the vaporized gas drawing-off pipe, and to the atmosphere.