To save a power consumption amount by improving an evaporative emission reliquefaction system of a liquefied natural gas carrier into an efficient supercooling structure and assure economical efficiency by operation simplification.
The supercooling liquefaction operation system for evaporative emission reliquefaction of the liquefied natural carrier includes an evaporative emission compressor 10; a heat exchanger 20 for a superlow temperature coupled to a cooling system 40; a liquefied emission separator 30; and a gas combustion unit 80. The system comprises parallel piping in the same structure as that where it is coupled in a parallel piping through which an LNG gas liquid separator 30 is coupled to a back flow preventing valve 50; and a second pressure regulating valve situated in the parallel piping and constantly maintaining the pressure of the LNG gas liquid separator 30 by adjusting a flow rate of evaporative emission generated from the evaporative emission compressor 110 to stably operate the LNG gas liquid separator 30 operated on a supercooling condition. The system is constituted that during supercooling liquefaction operation, it is operated in a state that the pressure of the LNG gas liquid separator 30 and the height of a liquid level are stably controlled.
KIM NAM-SOO
YUN JIN-YEOL
KIM HYUN-JIN
BOKU GENKI
| JP2001132896A | 2001-05-18 | |||
| JPH05118497A | 1993-05-14 | |||
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| JP2000027792A | 2000-01-25 | |||
| JPH10512940A | 1998-12-08 |
| WO2006078104A1 | 2006-07-27 |
Takanobu Takekawa
High Shinichi Ara
Nakamura Shigenori
Tsutomu Nishio