EP 2212633 A2 20100804 - METHOD AND DEVICE FOR THE ELECTRONIC REGULATION OF A REFRIGERATING INSTALLATION
Title (en)
METHOD AND DEVICE FOR THE ELECTRONIC REGULATION OF A REFRIGERATING INSTALLATION
Title (de)
VERFAHREN UND VORRICHTUNG ZUR ELEKTRONISCHEN REGELUNG FÜR KÄLTEANLAGE
Title (fr)
PROCÉDÉ ET DISPOSITIF DE RÉGULATION ÉLECTRONIQUE POUR DES INSTALLATIONS FRIGORIFIQUES
Publication
Application
Priority
- EP 2008009214 W 20081031
- DE 102007052531 A 20071101
Abstract (en)
[origin: WO2009056335A2] The invention relates to an electronic regulating system suitable for various refrigerating installations having a high energy-saving capacity, high efficiency and low emissions, and a compact size, said regulating system enabling the operating parameters to be visualised. The coolant flow rate in the plate-type exchanger/evaporator (5) is determined; a temperature difference is determined on the basis of the coolant inlet sensor (7) and the nominal value of the coolant; the required cooling capacity of the compressor (1) is continuously calculated from the flow rate, the temperature difference and the specific heat capacity of the coolant; the rotational speed of the compressor (1) is regulated according to the value of the cooling capacity; the refrigerating capacity of the compressor is calculated from the pressure difference between the high-pressure side and the low-pressure side (evaporation pressure) and the volumetric displacement of the compressor (1); the variation in the cooling capacity value of the compressor (1) creates pressure differences in the plate-type exchanger/evaporator (5); the evaporation temperature is measured and the overheating in the plate-type exchanger/evaporator (5) is determined on the basis thereof by means of the overheating temperature sensor (8); and the pressure differences in the plate-type exchanger/evaporator (5) are regulated via the electronic control valve (4) by means of an overheating regulating device for the plate-type exchanger/evaporator (5). The electronic regulating system is suitable for almost all refrigerating installations.
IPC 8 full level
F25B 49/02 (2006.01)
CPC (source: EP)
F25B 49/022 (2013.01); F25B 2500/19 (2013.01); F25B 2600/0253 (2013.01); F25B 2700/21172 (2013.01); Y02B 30/70 (2013.01)
Citation (search report)
See references of WO 2009056335A2
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 2009056335 A2 20090507; WO 2009056335 A3 20090618; DE 102007052531 A1 20090514; DE 102007052531 B4 20120223; EP 2212633 A2 20100804
DOCDB simple family (application)
EP 2008009214 W 20081031; DE 102007052531 A 20071101; EP 08844554 A 20081031