Liquefied gas supply system

Details Liquefied gas supply system Liquefied gas supply system

1996-04-23

1997-10-21

Kilner, Christopher

Refrigeration

Storage of solidified or liquified gas

Liquified gas transferred as liquid

62 507, F17C 904

Patent

active

056784112

ABSTRACT:
A self-contained liquefied gas supply system has a tank for storing a liquefied gas, a primary pump for delivering the liquefied gas from the tank, a secondary pump for pressurizing the liquefied gas delivered from the primary pump, a vaporizer for vaporizing the liquefied gas discharged from the secondary pump into a vaporized gas, an expander for actuating the secondary pump with the vaporized gas produced by the vaporizer, and a back-pressure line connected to an outlet of the expander. A bypass pipe is connected between the primary pump and the vaporizer in bypassing relation to the secondary pump for supplying the liquefied gas from the primary pump to the vaporizer. A joint line is connected between the back-pressure line and a substantially atmospheric pressure line, the joint line having a first flow regulating valve for regulating a rate of flow of a gas from the back-pressure line to the substantially atmospheric pressure line. A bypass line is connected between the vaporizer and the back-pressure line in bypassing relation to the expander, the bypass line having a second flow regulating mechanism for regulating a rate of flow of the vaporized gas from the vaporizer to the back-pressure line. For starting the secondary pump, the liquefied gas is delivered from the primary pump through the bypass pipe to the vaporizer, which produces a vaporized gas supplied to the expander.

REFERENCES:
patent: 2467413 (1949-04-01), Wildhack
patent: 2799997 (1957-07-01), Morrison
patent: 2964917 (1960-12-01), Webster
patent: 3105361 (1963-10-01), Bell et al.
patent: 3123983 (1964-03-01), Sliepcevich
patent: 3154928 (1964-11-01), Harmens
patent: 3570261 (1971-03-01), Schwartzman
patent: 3768271 (1973-10-01), Denis
patent: 4178761 (1979-12-01), Schwartzman

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