| 摘要 |
<p>Disclosed is a refrigeration cycle device (100) provided with a refrigerant circuit (160) comprising a compressor (101), a condenser (102 or 106), a first throttle device (103 or 105), a gas-liquid separator (104), a second throttle device (105 or 103), and an evaporator (106 or 102); an injection path (170) which supplies a gaseous phase refrigerant separated by the gas-liquid separator (104) to the compressor (101) in the middle of a compression process; a detection means (130) located at the downstream side of the first throttle device in the refrigerant circuit (160) to detect the temperature or the pressure of the refrigerant present at the upstream side of the second throttle device or within the injection path (170); and a control device (108) which reduces the aperture of the first throttle device when the detection means (130) detects that, during the activation operation, defrosting operation, or stopping operation, the pressure of the refrigerant flowing into the gas-liquid separator (104) exceeds a predetermined pressure which is lower than the saturated steam pressure.</p> |
