A pressure vessel includes a first wall defining a container and a second wall surrounding the container defining a cavity between the first wall and the second wall. The pressure vessel also includes a vent in the second wall providing fluid communication between the cavity and an outside of the second wall and matter positioned within the cavity configured to prevent flame from propagating through the cavity while providing thermal conductivity between the first wall and the second wall.

A vapor cooled insulation structure includes at least one vapor sealed layer, created with discrete spacers between two layers. A vapor transport layer is created within these layers through which a cold fluid may flow to intercept and remove heat from an underlying structure. In one example, the vapor cooled system carries cold vapor which is in direct contact with an underlying cryogenic tank structural support.

A vapor cooled insulation structure includes at least one vapor sealed layer, created with discrete spacers between two layers. A vapor transport layer is created within these layers through which a cold fluid may flow to intercept and remove heat from an underlying structure. In one example, the vapor cooled system carries cold vapor which is in direct contact with an underlying cryogenic tank structural support.

A hydrocarbon tank system environment corrosion inhibitor includes use of inert gas, preferably Nitrogen, to blanket ullage and interstice through the tank system. Blanket gas is provided is controller into coupling to access ullages. Blanket gas is provided upon fueling events to stabilize the pressure in the system and prevent entry of atmospheric air and water (vapor). Blanket gas may be continuously run into the ullage and/or other spaces in tank system. A controlled system allows for monitoring of pressures in the tank, and thereby identifies pressure events and even leaks in system due to unusual events, or general loss of pressure.

A hydrocarbon tank system environment corrosion inhibitor includes use of inert gas, preferably Nitrogen, to blanket ullage and interstice through the tank system. Blanket gas is provided is controller into coupling to access ullages. Blanket gas is provided upon fueling events to stabilize the pressure in the system and prevent entry of atmospheric air and water (vapor). Blanket gas may be continuously run into the ullage and/or other spaces in tank system. A controlled system allows for monitoring of pressures in the tank, and thereby identifies pressure events and even leaks in system due to unusual events, or general loss of pressure.

A hydrocarbon tank system environment corrosion inhibitor includes use of inert gas, preferably Nitrogen, to blanket ullage and interstice through the tank system. Blanket gas is provided is controller into coupling to access ullages. Blanket gas is provided upon fueling events to stabilize the pressure m the system and prevent entry of atmospheric air and water (vapor). Blanket gas may be continuously run into the ullage and/or other spaces in tank system. A controlled system allows for monitoring of pressures in the tank, and thereby identifies pressure events and even leaks in system due to unusual events, or general loss of pressure.

A hydrocarbon tank system environment corrosion inhibitor includes use of inert gas, preferably Nitrogen, to blanket ullage and interstice through the tank system. Blanket gas is provided is controller into coupling to access ullages. Blanket gas is provided upon fueling events to stabilize the pressure m the system and prevent entry of atmospheric air and water (vapor). Blanket gas may be continuously run into the ullage and/or other spaces in tank system. A controlled system allows for monitoring of pressures in the tank, and thereby identifies pressure events and even leaks in system due to unusual events, or general loss of pressure.

A transport container for helium, having an inner container for receiving helium, a thermal shield actively coolable with the aid of a cryogenic liquid and in which the inner container is accommodated, an outer container in which the thermal shield and inner container are accommodated, and a carrying ring provided on the thermal shield. The inner container is suspended from the carrying ring with the aid of first suspension rods, wherein the carrying ring is suspended from the outer container with the aid of second suspension rods, wherein at least one of the first suspension rods has a first spring device and at least one of the second suspension devices has a second spring device in order to ensure a spring pretension of the first suspension rods and the second suspension rods for different heat expansions of the inner container and the thermal shield.

A transport container for helium, having an inner container for receiving helium, a thermal shield actively coolable with the aid of a cryogenic liquid and in which the inner container is accommodated, an outer container in which the thermal shield and inner container are accommodated, and a carrying ring provided on the thermal shield. The inner container is suspended from the carrying ring with the aid of first suspension rods, wherein the carrying ring is suspended from the outer container with the aid of second suspension rods, wherein at least one of the first suspension rods has a first spring device and at least one of the second suspension devices has a second spring device in order to ensure a spring pretension of the first suspension rods and the second suspension rods for different heat expansions of the inner container and the thermal shield.

A self-pressurising storage vessel is provided comprising a storage tank for storing a cryogen and a cooling jacket, wherein the cooling jacket is for holding a substance suitable for cooling the cryogen, arranged such that, in use, vapour evaporated from the substance in the cooling jacket pressurises the storage tank.