| 摘要 |
The separation efficiency of non-condensable gas in the separation membrane is enhanced in a refrigeration device provided with a configuration whereby non-condensable gas remaining in the refrigerant connection pipes at the time of on-site installation can be separated and removed from a state of mixture with the refrigerant in the refrigerant circuit using a separation membrane. An air conditioning device 1 comprises a heat source unit ( 2 ) and a utilization unit ( 5 ) connected via a refrigerant connection pipe ( 6, 7 ) to form a refrigerant circuit ( 10 ), and has a cooler ( 32 ), a secondary receiver ( 33 ), and a separation membrane device ( 34 ). The cooler ( 32 ) cools at least a portion of the refrigerant that flows through the liquid-side refrigerant circuit ( 11 ) as the compressor ( 21 ) is operated and the refrigerant in the refrigerant circuit ( 10 ) is recirculated. The secondary receiver ( 33 ) separates the refrigerant cooled by the cooler ( 32 ) into a liquid refrigerant and a gas refrigerant that includes non-condensable gas. The separation membrane device ( 34 ) has a separation membrane ( 34 b) for separating the non-condensable gas from the gas refrigerant obtained by gas-liquid separation, and discharges the non-condensable gas thus separated to the outside of the refrigerant circuit ( 10 ).
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