Cryogenic recondenser with remote cold box

Patent · Tue Aug 30 00:00:00 EDT 1988

OSTI ID:6523926

Bartlett, A J; Andeen, B R; Lessard, P A

This patent describes a cryogenic recondenser for recondensing cryogen retained in a storage vessel. The recondenser consists of: cooling means comprising a mechanical refrigerator positioned outside of the storage vessel, the means precooling a volume of gaseous refrigerant; a transfer line leading from the cooling means and removeably inserted into the storage vessel; and a JT valve at an end of the transfer line in the storage vessel, the precooled refrigerant being transferred in the transfer line from the cooling means to the JT valve in heat exchange relation with returning refrigerant and being expanded through the JT valve to form a liquid-gas cryogen mixture within the end of the transfer line which is in heat exchange relation with boil-off from the cryogen retained in the storage vessel such that the boil off is cooled and recondensed; refrigerant being returned to the cooling means through the transfer line in a manner in which the returning refrigerant is in heat exchange relation with the refrigerant being transferred to the JT valve.

• Assignee: Helix Technology Corp., Waltham, MA
• Patent Number(s): US 4766741
• Application Number: TRN: 89-003542
• OSTI ID: 6523926
• Resource Relation: Patent File Date: Filed date 20 Jan 1987
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CONDENSERS
CRYOGENIC FLUIDS
EVAPORATION
CONTAINERS
CRYOGENICS
DESIGN
EVAPORATORS
REFRIGERANTS
REFRIGERATORS
STORAGE FACILITIES
TWO-PHASE FLOW
VALVES
CONTROL EQUIPMENT
EQUIPMENT
FLOW REGULATORS
FLUID FLOW
FLUIDS
PHASE TRANSFORMATIONS
WORKING FLUIDS
420201* - Engineering- Cryogenic Equipment & Devices