EP 2602572 A1 20130612 - CLOSED- AND GAS CIRCULATION-TYPE FREEZING APPARATUS AND OPERATION METHOD THEREOF
Title (en)
CLOSED- AND GAS CIRCULATION-TYPE FREEZING APPARATUS AND OPERATION METHOD THEREOF
Title (de)
GESCHLOSSENE GEFRIERVORRICHTUNG MIT GASZIRKULATION UND BETRIEBSVERFAHREN DAFÜR
Title (fr)
APPAREIL DE CONGELATION DU TYPE FERME ET A CIRCULATION DE GAZ ET SON PROCEDE DE FONCTIONNEMENT
Publication
Application
Priority
- JP 2011185284 A 20110826
- JP 2012071259 W 20120823
Abstract (en)
Provided is a closed-cycle air refrigeration system 10A in which high-temperature, high-pressure air refrigerant compressed by a compressor 22 is cooled by a water cooled heat exchanger 16 and a heat recovery heat exchanger 18, then expanded by an expander 26 to obtain very low-temperature and low-pressure air refrigerant. This low-temperature, low-pressure air refrigerant is supplied to a brine cooler 20. The system includes a sealed air refrigerant supply/discharge system 50 formed by an expansion tank 51, a compressor inlet-side connecting passage 52, and a compressor outlet-side connecting passage 54. A pressure sensor 62 detects a pressure of the air refrigerant in a compressor inlet-side air refrigerant passage 12a, and air refrigerant is supplied or discharged between the expansion tank 51, and the compressor inlet-side air refrigerant passage 12a or a compressor outlet-side air refrigerant passage 12b such that the air refrigerant pressure stays within a preset range.
IPC 8 full level
F25B 9/00 (2006.01); F25B 9/06 (2006.01); F25B 25/00 (2006.01); F25B 40/00 (2006.01); F25B 45/00 (2006.01)
CPC (source: EP)
F25B 9/004 (2013.01)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2602572 A1 20130612; EP 2602572 A4 20140101; EP 2602572 B1 20150715; ES 2548077 T3 20151013; JP 2013044517 A 20130304; JP 5934482 B2 20160615; WO 2013031618 A1 20130307
DOCDB simple family (application)
EP 12820846 A 20120823; ES 12820846 T 20120823; JP 2011185284 A 20110826; JP 2012071259 W 20120823