EP 2198223 A2 20100623 - INTEGRATED REFRIGERATING/FREEZING SYSTEM AND DEFROST METHOD
Title (en)
INTEGRATED REFRIGERATING/FREEZING SYSTEM AND DEFROST METHOD
Title (de)
INTEGRIERTES KÜHL-/GEFRIERSYSTEM UND ABTAUVERFAHREN
Title (fr)
SYSTÈME DE RÉFRIGÉRATION/CONGÉLATION INTÉGRÉ ET PROCÉDÉ DE DÉGIVRAGE
Publication
Application
Priority
- US 2008080298 W 20081017
- CN 200710181325 A 20071017
Abstract (en)
[origin: WO2009052369A2] A medium and low-temperature integrated refrigeration/freezing system (100) has the function of discharge gas defrosting. It comprises medium and low-temperature compressors sets (120, 122) and medium and low-temperature evaporators, as well as control valves (141, 142, 143, 144), adjusting valves (145, 146), one-way valves (147, 148) and expansion valves (150, 152, 154), and the switching between a refrigerating cycle and the discharge gas defrosting cycle is performed by the combination of actions between multiple control valves. When a first control valve is opened, a second valve is closed and a fourth valve is closed to the refrigerant pipeline to said reservoir, the refrigerating cycle operation is performed; and when the first control valve is closed, the second valve is opened and the fourth valve is closed to the refrigerant pipeline of an intercooler (128), the discharge gas defrosting operation is performed.
IPC 8 full level
A47F 3/04 (2006.01); F25B 1/10 (2006.01); F25B 41/04 (2006.01); F25B 47/02 (2006.01); F25D 11/00 (2006.01); F25D 11/02 (2006.01); F25D 21/00 (2006.01)
CPC (source: EP US)
A47F 3/0482 (2013.01 - EP US); F25B 1/10 (2013.01 - EP US); F25B 5/02 (2013.01 - EP US); F25B 41/20 (2021.01 - EP US); F25B 41/24 (2021.01 - EP US); F25B 47/022 (2013.01 - EP US); F25D 11/022 (2013.01 - EP US); F25D 21/006 (2013.01 - EP US); F25B 2400/075 (2013.01 - EP US); F25B 2400/13 (2013.01 - EP US); F25B 2400/22 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
WO 2009052369 A2 20090423; WO 2009052369 A3 20090716; CN 101413745 A 20090422; CN 101413745 B 20130206; EP 2198223 A2 20100623; EP 2198223 A4 20140903; US 2010205984 A1 20100819
DOCDB simple family (application)
US 2008080298 W 20081017; CN 200710181325 A 20071017; EP 08840007 A 20081017; US 73830008 A 20081017