公开(公告)号：EP3228951A4

公开(公告)日：2018-07-04

申请号：EP14907314

申请日：2014-12-05

申请人： MITSUBISHI ELECTRIC CORP

发明人： ITO TAKUYA ,  ISHIDA KAZUYUKI ,  OOKOSHI YASUSHI ,  HIKONE TAKAHITO

IPC分类号： F25B1/00 ,  F25B13/00 ,  F25B47/02 ,  F25B49/02

CPC分类号： F25B13/00 ,  F25B47/02 ,  F25B49/02 ,  F25B2313/004 ,  F25B2400/06

摘要： A refrigeration cycle apparatus according to the invention can continue the operation regardless of failure of any of multiple refrigerant circuits. The refrigeration cycle apparatus can also stabilize the temperature of the refrigerant to be cooled regardless of a defrosting operation of any of the refrigerant circuits during heating operations of the other refrigerant circuits. A water-side heat exchanger (8a) and a water-side heat exchanger (8c) are connected in series with a water pipe. A water-side heat exchanger (8b) and a water-side heat exchanger (8d) are connected in series with another water pipe. The water-side heat exchanger (8a) and the water-side heat exchanger (8c), which are connected in series, are connected in parallel to the water-side heat exchanger (8b) and the water-side heat exchanger (8d), which are connected in series, with other water pipes.

公开(公告)号：EP3315875A4

公开(公告)日：2018-05-16

申请号：EP15896330

申请日：2015-06-24

申请人： MITSUBISHI ELECTRIC CORP

发明人： HIKONE TAKAHITO ,  OKOSHI YASUSHI ,  ITO TAKUYA

IPC分类号： F25B1/00 ,  F25B13/00 ,  F25B41/04 ,  F25B43/00 ,  F25B47/02 ,  F25B49/00 ,  F25B49/02

CPC分类号： F25B49/02 ,  F25B13/00 ,  F25B41/04 ,  F25B43/00 ,  F25B47/025 ,  F25B49/005 ,  F25B2313/02741 ,  F25B2313/029 ,  F25B2400/0411 ,  F25B2400/16 ,  F25B2500/27 ,  F25B2600/2501 ,  F25B2600/2513

摘要： A heat source apparatus including: a compressor; an air-cooled heat exchanger; a load-side heat exchanger configured to exchange heat between a heat medium which flows through a load, and refrigerant; and a main expansion valve which is connected between the air-cooled heat exchanger and the load-side heat exchanger, and has a function of being fully closed when stoppage of power supply from a power supply source is detected, includes a refrigerant flow control circuit connected in parallel to the main expansion valve. The refrigerant flow control circuit includes a first sub-expansion valve configured to regulate a flow rate of the refrigerant, a refrigerant tank configured to store the refrigerant, and a second sub-expansion valve configured to regulate the flow rate of the refrigerant, which are connected in series with one another.