Title:
冷凍システム及び冷凍システムの制御方法
Document Type and Number:
Japanese Patent JP7369030
Kind Code:
B2
Abstract:
To expand an operation applicable range of a refrigeration system while avoiding liquid return to a compressor and abnormal overheating.SOLUTION: A refrigeration system related to one embodiment includes: a gas liquid separator having a gas phase part and a liquid phase part; an evaporator to which a refrigerant from the liquid phase part of the gas liquid separator is guided; a compressor for compressing the refrigerant that has passed through the evaporator; a first refrigerant flow passage connecting the evaporator with the compressor; a second refrigerant flow passage connecting the gas phase part of the gas liquid separator with the first refrigerant flow passage; a heat exchanger for exchanging heat between the liquid phase part of the gas liquid separator and the refrigerant that has passed through the evaporator; a first expansion valve provided in the second refrigerant flow passage; a sensor for detecting pressure or a temperature correlated with an evaporation temperature of the refrigerant in the evaporator; and a control section for performing opening control of the first expansion valve on the basis of target pressure of the gas liquid separator set on the basis of a detection result from the sensor.SELECTED DRAWING: Figure 1
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Inventors:
Masaki Kataoka
Application Number:
JP2019236355A
Publication Date:
October 25, 2023
Filing Date:
December 26, 2019
Export Citation:
Assignee:
Maekawa Manufacturing Co., Ltd.
International Classes:
F25B1/00; F25B40/00; F25B43/00; F25B49/02
Domestic Patent References:
| JP2012193897A | ||||
| JP2019148395A | ||||
| JP2014167381A | ||||
| JP2001304714A |
Foreign References:
| WO2009150761A1 |
Attorney, Agent or Firm:
SSIP Patent Attorney Corporation
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