Two stage cryogen cooling system
OwnerEoin Hodge, John McAnerneyinventors
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Abstract
The present invention provides a two stage cryogen cooling system for particular use in cooling a cryogen employed in a superconducting power transmission cable, the cooling system employing a sub-cooler pump such as a venturi pump to effect both cooling stages, the first cooling stage being the cooling of the liquid cryogen flowing through an inner lumen of a cryostat of the cooling system and the second stage being the generation of a supply of gaseous cryogen for supply to a second lumen of the cryostat surrounding the inner lumen.
Claims19
A cryogen cooling system comprising a cryostat containing a supply of cryogen in a first lumen of the cryostat;
- a cooling chamber defining a fluid flow path through which at least a portion of the cryogen is arranged to pass;
- a sub-cooler pump operable to reduce pressure within the cooling chamber in order to effect cooling of the passing cryogen;
- wherein the sub-cooler pump has an exhaust line in fluid communication with a second lumen of the cryostat.
Dependencies are inferred from the claim text.