Title:
Compound heat source heat pump equipment
Document Type and Number:
Japanese Patent JP6208086
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a combined heat source heat pump device capable of continuing a heating operation even during a defrosting operation and of ensuring smooth transition to the heating operation after defrosting.SOLUTION: A combined heat source heat pump device comprises: a first heat pump circuit 40; a second heat pump circuit 50 heating a circulation liquid L using air heat via a second heating heat exchanger 51 provided in a heating circulation circuit 30; and a control unit 6, and actuates the second heat pump circuit 50 and drives a heating circulation pump 32 to perform a heating operation for heating the circulation liquid L, the control unit 6 including defrosting operation control means 63 executing a defrosting operation for defrosting an air-heat source heat exchanger 55 and driving the heating circulation pump 32 at a time of the defrosting operation, the control unit 6 actuating the first heat pump circuit 40 if the defrosting operation is to be performed during the heating operation, and the control unit 6 furthermore driving the earth thermal circulation pump 22 at a maximum revolving speed and then reducing the revolving speed stepwise so that a temperature of decompressed first refrigerant is equal to a predetermined temperature for certain time after the end of the defrosting operation.
Inventors:
Makoto Takashi
Maeda Ueda
Maeda Ueda
Application Number:
JP2014135057A
Publication Date:
October 04, 2017
Filing Date:
June 30, 2014
Export Citation:
Assignee:
Corona Co., Ltd.
International Classes:
F25B47/02; F24J3/08; F25B1/00; F25B27/00; F25B30/06
Domestic Patent References:
| JP2014035109A | ||||
| JP63210570A | ||||
| JP60123567U | ||||
| JP61034066U | ||||
| JP2013036683A | ||||
| JP2016061540A | ||||
| JP2016017667A | ||||
| JP2015161467A | ||||
| JP2015148362A | ||||
| JP2015148354A |
Foreign References:
| WO2013038439A1 |
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