Two-stage Joule-Thomson cryostat with gas supply management syst

Details Two-stage Joule-Thomson cryostat with gas supply management syst Two-stage Joule-Thomson cryostat with gas supply management syst

1990-03-22

1992-01-07

Capossela, Ronald C.

Refrigeration

Cryogenic treatment of gas or gas mixture

Liquefaction

244 316, 250352, F25B 1902

Patent

active

050779796

ABSTRACT:
A two-stage Joule-Thomson cryostat (10) has a first-stage cryostat (12) with a helical-coil heat exchanger (14) and and isenthalpic gas expansion orifice (20) that discharges a mixture of cooled gas and cryogenic liquid into a liquid cryogen plenum (26). A second-stage cryostat (30) with a helical coil heat exchanger (32), wound to a larger diameter than the first-stage heat exchanger coil (14), is wound around and in thermal contact with the liquid cryogen plenum (26). This arrangement achieves a high degree of interstage heat transfer and cooling of the gas flowing in the second-stage heat exchanger coil (32) by the liquid cryogen in the first-stage liquid cryogen plenum (26). In operation, a gas flow management system (60), designed for rapid cooldown, initially passes a first gas of high specific refrigerating capacity through both stages (12 and 30). When the stages and structure are sufficiently cooled to the near-vicinity of the normal boiling temperature of the first gas, the flow of the first gas through the second-stage cryostat (30) is discontinued, and flow of a second gas of lower normal boiling temperature than the first gas is passed through the second stage cryostat (30). The flow of the first gas continues through the first-stage cryostate (30).

REFERENCES:
patent: 2991633 (1961-07-01), Simon
patent: 3293877 (1966-12-01), Barnes
patent: 3372556 (1968-03-01), Waldman
patent: 3401533 (1968-09-01), Maybury
patent: 3415078 (1968-12-01), Liston
patent: 4126017 (1978-11-01), Bytniewski et al.

Affiliated with

Also associated with

Rating

Two-stage Joule-Thomson cryostat with gas supply management syst does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Two-stage Joule-Thomson cryostat with gas supply management syst, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Two-stage Joule-Thomson cryostat with gas supply management syst will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-813253