Method for extracting a liquid phase of a cryogen from a storage dewar
AssigneeLinde Aktiengesellschaft
InventorsNiels LOSE, Calle Steenberg LOSE
Life of this patent
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Abstract
A method for extracting a liquid phase of a cryogen comprising the liquid phase and a vapour phase from an interior volume of a storage dewar through an extraction means, utilizing a push gas introduced into the vapour phase of the cryogen through an outlet of a supply line provided between a push gas supply and the interior volume of the storage dewar, the supply line partially extending through the liquid phase within the interior volume.
Claims7
A method for extracting a liquid phase of a cryogen comprising the liquid phase and a vapour phase from an interior volume of a storage dewar through an extraction means, utilizing a push gas introduced into the vapour phase of the cryogen through an outlet of a supply line provided between a push gas supply and the interior volume of the storage dewar, the supply line partially extending through the liquid phase within the interior volume and wherein the push gas is led through a heat exchanger provided in a section of the supply line within the liquid phase.
A storage dewar defining an interior volume comprising a lower section and an upper section for storage of a cryogenic, comprising an extraction means for extracting the cryogenic from the interior volume, and a supply line for introducing a push gas into the interior volume, the supply line extending, in a first section, from the upper section of the interior volume to the lower section, and then, in a second section, back from the lower section to the upper section, an outlet, through which push gas exits the supply line being provided at or in the vicinity of a terminal end of the supply line in the upper section of interior volume, and wherein the supply line comprises an extension reversal section in the lower part of the interior volume and wherein the supply line is provided with a heat exchanger in the lower part of the interior volume.
Dependencies are inferred from the claim text.