Title:
HEAT PUMP SYSTEM, AND METHOD FOR CONTROLLING HEAT PUMP SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/157580
Kind Code:
A1
Abstract:
[Problem] To provide a heat pump system that is capable of protecting a compressor and of estimating the state of a suction refrigerant highly accurately while curbing costs. [Solution] The invention comprises: a refrigerant circuit 1 that includes a compressor 10 and in which a refrigerant circulates; a temperature sensor 2 that measures the temperature of the refrigerant; a pressure sensor 3 that measures the pressure of the refrigerant; and a drive suppression-control device 4 that determines a reduction in the pressure of the refrigerant sucked into the compressor 10 on the basis of a measurement value of the temperature sensor 2 and a measurement value of the pressure sensor 3, and that performs control to suppress driving of the compressor 10. The drive suppression-control device 4: controls the driving of the compressor 10 by determining a reduction in the pressure of the refrigerant sucked into the compressor 10, from the measurement value of the temperature sensor 2, in a case where a predetermined first condition is established; and performs control to suppress the driving of the compressor 10 by determining a reduction in the pressure of the refrigerant sucked into the compressor 10, from the measurement value of the pressure sensor 3, in a case where a predetermined second condition different from the first condition is established.
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Inventors:
TOYAMA TAKASHI (JP)
YAMASHITA KOHEI (JP)
YAMASHITA KOHEI (JP)
Application Number:
PCT/JP2023/002088
Publication Date:
August 24, 2023
Filing Date:
January 24, 2023
Export Citation:
Assignee:
SANDEN CORP (JP)
International Classes:
B60H1/32; F25B1/00; F24F11/38; F24F11/86
Foreign References:
| JPS61268958A | 1986-11-28 | |||
| JP2022010435A | 2022-01-17 |
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