Title:
COOLING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2020/204218
Kind Code:
A1
Abstract:
Disclosed is a cooling system comprising a refrigerant circulation unit through which a refrigerant circulates. A cooling system according to an embodiment of the present invention comprises a refrigerant circulation unit comprising: a first compressor for compressing a gas-state refrigerant; a first cooler for cooling the refrigerant compressed by the first compressor; a first gas/liquid separator for separating the refrigerant cooled by the first cooler into a gas-component first refrigerant flow and a liquid-component second refrigerant flow; a second compressor for compressing the first refrigerant flow; a second cooler for cooling the first refrigerant flow compressed by the second compressor; a second gas/liquid separator for separating the first refrigerant flow cooled by the second cooler into a gas-component third refrigerant flow and a liquid-component fourth refrigerant flow; a first expansion means for pressure-reducing the fourth refrigerant flow; an economizer for separating the fourth refrigerant flow pressured-reduced by the first expansion means into a gas-component fifth refrigerant flow and a liquid-component sixth refrigerant flow; and a first circulation line for supplying the fifth refrigerant flow separated by the economizer to the first gas/liquid separator, the refrigerant being a mixed refrigerant. The cooling system according to an embodiment of the present invention may further comprise: a cooling line for receiving a cooling target and supercooling same; and a heat exchanger provided between the cooling line and the refrigerant circulation unit so as to cause heat exchange between the cooling target and the refrigerant. The heat exchanger may comprise: a first heat exchange unit for supercooling the cooling target; a second heat exchange unit provided between the rear end of the second gas/liquid separator and the front end of a second expansion means so as to cool the third refrigerant flow; a third heat exchange unit provided at the rear end of the second expansion means so as to transfer cold and heat from the third refrigerant flow pressure-reduced by the second expansion means; a fourth heat exchange unit for precooling the sixth refrigerant flow pressure-reduced by a third expansion means; and a fifth heat exchange unit for merging, into a seventh refrigerant flow, the third refrigerant flow that has passed through the third heat exchange unit and the sixth refrigerant flow that has passed through the fourth heat exchange unit, and causing heat exchange between the seventh refrigerant flow and the cooling target.
Inventors:
KIM TAE YOON (KR)
PARK HYUN KI (KR)
KIM CHUL WOO (KR)
LEE DONG HOON (KR)
PARK HYUN KI (KR)
KIM CHUL WOO (KR)
LEE DONG HOON (KR)
Application Number:
PCT/KR2019/003789
Publication Date:
October 08, 2020
Filing Date:
April 01, 2019
Export Citation:
Assignee:
SAMSUNG HEAVY IND (KR)
International Classes:
F25J1/02; F25B41/00; F25B41/06; F25B43/04; F25J1/00
Domestic Patent References:
| WO2005071333A1 | 2005-08-04 |
Foreign References:
| KR101357720B1 | 2014-02-05 | |||
| KR101617021B1 | 2016-04-29 | |||
| KR101009853B1 | 2011-01-19 | |||
| KR20120103414A | 2012-09-19 | |||
| KR101966980B1 | 2019-04-08 |
Other References:
See also references of EP 3951297A4
Attorney, Agent or Firm:
SELIM INTELLECTUAL PROPERTY LAW FIRM (KR)
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