EP 3594588 B1 20220713 - GEOTHERMAL HEAT PUMP DEVICE
Title (en)
GEOTHERMAL HEAT PUMP DEVICE
Title (de)
GEOTHERMISCHE WÄRMEPUMPENVORRICHTUNG
Title (fr)
DISPOSITIF DE POMPE À CHALEUR GÉOTHERMIQUE
Publication
Application
Priority
JP 2017009420 W 20170309
Abstract (en)
[origin: EP3594588A1] A geothermal heat pump device includes a heat pump heat source unit having a refrigerant circuit in which a compressor, a water-refrigerant heat exchanger, an expansion valve, and a refrigerant-brine heat exchanger in which a heat medium from an underground heat exchanger buried underground is connected such that the heat medium circulates are serially connected, a warm-water heater unit configured to supply warm water heated at the water-refrigerant heat exchanger to heating and air conditioning and hot water supply such that the warm water circulates, and a controller configured to control an upper limit of an operation frequency of the compressor based on a heat collection limit value set by comparing a unit necessary evaporation capacity calculated from information on the underground heat exchanger with a unit actual evaporation capacity calculated from inlet and outlet temperatures and a circulation flow rate of the heat medium circulating through the refrigerant-brine heat exchanger.
IPC 8 full level
F25B 1/00 (2006.01); F24D 3/18 (2006.01); F24D 17/02 (2006.01); F24D 19/10 (2006.01); F24H 4/02 (2022.01); F25B 27/00 (2006.01); F25B 30/02 (2006.01); F25B 30/06 (2006.01); F25B 49/02 (2006.01)
CPC (source: EP US)
F24D 3/18 (2013.01 - EP); F24D 17/02 (2013.01 - EP); F24D 19/1072 (2013.01 - EP US); F24H 15/238 (2022.01 - EP US); F24H 15/38 (2022.01 - EP US); F24H 15/45 (2022.01 - EP US); F25B 1/00 (2013.01 - EP); F25B 27/00 (2013.01 - EP); F25B 30/02 (2013.01 - EP); F25B 30/06 (2013.01 - EP); F25B 49/022 (2013.01 - EP); F24D 2200/08 (2013.01 - EP); F24D 2200/11 (2013.01 - EP); F24D 2200/12 (2013.01 - EP); F24H 15/212 (2022.01 - EP US); F24H 15/227 (2022.01 - EP US); F24H 15/281 (2022.01 - EP US); F24H 15/385 (2022.01 - EP US); F25B 2313/002 (2013.01 - EP); F25B 2313/003 (2013.01 - EP); F25B 2313/004 (2013.01 - EP)
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 3594588 A1 20200115; EP 3594588 A4 20200408; EP 3594588 B1 20220713; JP WO2018163347 A1 20191107; WO 2018163347 A1 20180913
DOCDB simple family (application)
EP 17899277 A 20170309; JP 2017009420 W 20170309; JP 2019504218 A 20170309