Title:
REFRIGERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/065118
Kind Code:
A1
Abstract:
A refrigeration device (1) in which a heat source unit (10) and a utilization unit (50) are connected to operate in a refrigeration cycle in which the high pressure of a refrigerant becomes equal to or higher than a critical pressure, said refrigeration device being provided with a controller (100) capable of performing a first operation to recover the refrigerant to the heat source unit (10) when a stop condition for the utilization unit (50) is satisfied and a second operation to prohibit the first operation when the pressure of the heat source unit (10) is equal to or higher than the critical pressure of the refrigerant. This configuration prevents damage to equipment, such as a refrigerant reservoir (15), when recovering the refrigerant to the heat source unit (10).
Inventors:
TAKEGAMI MASAAKI (JP)
TAGUCHI SHUICHI (JP)
TAGUCHI SHUICHI (JP)
Application Number:
PCT/JP2020/025239
Publication Date:
April 08, 2021
Filing Date:
June 26, 2020
Export Citation:
Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B1/00; F25B13/00; F25B1/10; F25B43/00
Domestic Patent References:
| WO2008069265A1 | 2008-06-12 | |||
| WO2006115051A1 | 2006-11-02 | |||
| WO2017061010A1 | 2017-04-13 | |||
| WO2017138419A1 | 2017-08-17 |
Foreign References:
| JP2011133205A | 2011-07-07 | |||
| JP2013108646A | 2013-06-06 | |||
| JP2018009767A | 2018-01-18 |
Other References:
See also references of EP 4015939A4
Attorney, Agent or Firm:
MAEDA & PARTNERS (JP)
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