EP 4343233 A1 20240327 - OPTIMIZED MANAGEMENT METHOD OF AN ENVIRONMENTALLY FRIENDLY HEAT PUMP
Title (en)
OPTIMIZED MANAGEMENT METHOD OF AN ENVIRONMENTALLY FRIENDLY HEAT PUMP
Title (de)
OPTIMIERTES VERWALTUNGSVERFAHREN EINER UMWELTFREUNDLICHEN WÄRMEPUMPE
Title (fr)
PROCÉDÉ DE GESTION OPTIMISÉ D'UNE POMPE À CHALEUR ÉCOLOGIQUE
Publication
Application
Priority
IT 202200019236 A 20220920
Abstract (en)
The object of the present invention is a method for the management and control of a thermodynamic machine (HP) based on a compression/expansion cycle of an operating fluid and comprising at least: a first heat exchanger (11; 12) in which said operating fluid absorbs thermal energy at constant pressure t from a cold well; a second heat exchanger (12; 11) in which said operating fluid yields part of the thermal energy thereof to a hot well, at constant pressure; an expansion valve (14) adapted to carry out constant enthalpy expansion and cooling of said operating fluid; a compressor (13; C) adapted to compress said operating fluid, said compressor (13; C) being able to suck and compress a wet operating fluid with a suitable percentage of liquid fraction; a plurality of temperature sensors for detecting at least the delivery temperatures Tm of said compressor, of an evaporation temperature SST in said first exchanger (11; 12), of a condensation temperature SDT in said second exchanger (12; 11). The difference in temperature between said lubricating oil in the compressor (13; C) and said operating fluid at the delivery of the compressor (13; C) is kept equal to or higher than a safety threshold OIL_SH such that there is no condensation of said operating fluid in said lubricating oil.The delivery temperature Tm of said compressor (13; C) is regulated as long as it does not substantially approximate and/or reach an optimised target delivery temperature Tm_target_opt that is a function of at least the rotation frequency of said compressor (13; C).
IPC 8 full level
F25B 49/00 (2006.01); F25B 49/02 (2006.01)
CPC (source: EP)
F25B 49/005 (2013.01); F25B 49/02 (2013.01); F25B 2500/08 (2013.01); F25B 2500/19 (2013.01); F25B 2600/2513 (2013.01); F25B 2700/21152 (2013.01); F25B 2700/21155 (2013.01); F25B 2700/2116 (2013.01); F25B 2700/2117 (2013.01)
Citation (applicant)
Citation (search report)
- [A] JP 6594698 B2 20191023
- [A] JP 2001227822 A 20010824 - MITSUBISHI ELECTRIC CORP
- [A] US 2022146165 A1 20220512 - HIROSAKI YU [JP], et al
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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DOCDB simple family (application)
EP 23193672 A 20230828