| 主权项 |
1. A cryogenic tank system comprising:
a storage container having a top portion and a bottom portion, the storage container also being configured to store a liquid within an enclosed interior volume, wherein a level of the liquid within the interior volume defines a liquid space and a vapor space; a heat exchanger arrangement including:
a heat exchanger heater positioned external to the storage container and connected to a heat exchanger fluid circuit;a first heat exchanger located in the vapor space within the storage container and in fluid communication with the heat exchanger heater along the heat exchanger fluid circuit;a second heat exchanger located in the liquid space within the storage container and in fluid communication with the heat exchanger heater along the heat exchanger fluid circuit;wherein heat transfer to the vapor space and the liquid space by the first and second heat exchangers pressurizes the interior volume of the storage container; and a valve assembly mounted to the top portion of the storage container and positioned substantially within the storage container, the valve assembly including an inlet portion and an outlet portion, the outlet portion being positioned outside of the storage container, and the inlet portion being positioned within the storage container proximate to the bottom portion of the storage container, and wherein the inlet portion is sealable by a fail-closed powered sealing mechanism. |
