Refrigeration system
AssigneeDaikin Industries, Ltd.
InventorsKenji Tanimoto, Takeo Ueno, Masaaki Takegami, Kazuyoshi Nomura
Life of this patent
Estimating the term…
Abstract
A refrigeration system includes a chiller unit and a freezer unit. The freezer unit is provided with a freezing compressor for compressing a refrigerant in a total of two stages together with a compressor in an outdoor unit. The freezing compressor is formed by an inverter compressor. An oil separator is disposed on the discharge pipe of the freezing compressor. On the inlet pipe of the freezing compressor, a heat exchanger is provided for cooling an inverter with an refrigeration oil separated by the oil separator and a suction refrigerant.
Claims18
A refrigeration system comprising a refrigerant circuit (6) formed by connecting at least all of:
- a heat source side unit (2) having a heat source side compressor (11, 12) and a heat source side heat exchanger (13);
- a chiller unit (4) having a chilling heat exchanger (47) for cooling an object being cooled;
- and
- a freezer unit (5) having a freezing heat exchanger (56) for cooling an object being cooled at a lower temperature than the chilling heat exchanger (47),
- wherein the freezer unit (5) is provided with a freezing compressor (55) for compressing a refrigerant in a total of two stages together with the heat source side compressor (11, 12).
A refrigeration system comprising a refrigerant circuit (6) formed by connecting at least all of:
- a heat source side unit (2) having a heat source side compressor (11, 12) and a heat source side heat exchanger (13);
- a room air conditioning unit (3) having an indoor heat exchanger (42) for heating or cooling room air;
- and
- a freezer unit (5) having a freezing heat exchanger (56) for cooling an object being cooled,
- wherein the freezer unit (5) is provided with a freezing compressor (55) for compressing a refrigerant in a total of two stages together with the heat source side compressor (11, 12).
A refrigeration system comprising a refrigerant circuit (6) formed by connecting at least all of:
- heat source side unit (2) having a heat source side compressor (11, 12) and a heat source side heat exchanger (13);
- a room air conditioning unit (3) having an indoor heat exchanger (42) for heating or cooling room air;
- a chiller unit (4) having a chilling heat exchanger (47) for cooling an object being cooled;
- and
- a freezer unit (5) having a freezing heat exchanger (56) for cooling an object being cooled at a lower temperature than the chilling heat exchanger (47),
- wherein the freezer unit (5) is provided with a freezing compressor (55) for compressing a refrigerant in a total of two stages together with the heat source side compressor (11, 12).
Dependencies are inferred from the claim text.