Cryogenic liquid sampling system

Details Cryogenic liquid sampling system Cryogenic liquid sampling system

1991-03-20

1992-11-10

Capossela, Ronald C.

Refrigeration

Processes

Circulating external gas

62 501, F25J 300

Patent

active

051613816

ABSTRACT:
A sampling system for cryogenic liquid sampling which passes vaporized cryogenic fluid to an analyzer through a conduit having a defined restriction such as an orifice at or downstream of the input and which prevents choke flow in the conduit by simultaneously reducing the pressure which promotes choke flow and improving the ratio of the fluid pressure at and downstream of the restriction in the direction which resists choke flow.

REFERENCES:
patent: 2707868 (1955-05-01), Goodman
patent: 2750511 (1956-06-01), Miller
patent: 2764536 (1956-09-01), Hutchins
patent: 2792501 (1957-05-01), Barton, Jr.
patent: 2984988 (1961-05-01), Berger et al.
patent: 3009864 (1961-11-01), Webb
patent: 3972202 (1976-08-01), Stearns
patent: 4668261 (1987-05-01), Chatzipetros
Two-Phase Flashing Flow Evaluations, Leung and Nazario, AIChE Apr. 2, 1989.
HTFS Handbook, TP 10 Single Component Two-Phase Choked Flow, pp. 1-4, 1988.
Flow of Fluids, Crane, Technical Paper No. 410 Chapter 2, pp. 8-15.

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