| 摘要 |
A refrigeration cycle device circulates a refrigerant, which is a zeotropic refrigerant mixture. In a refrigeration cycle, a compressor, a condenser, an expansion valve, and an evaporator are connected by a refrigerant pipe. The refrigeration cycle device calculates a circulation composition value of the refrigerant based on states before and after the refrigerant temperature and the refrigerant pressure change during the operation of the refrigeration cycle, calculates dT for calibrating a second temperature sensor and dP for calibrating a pressure sensor, based on a reference composition value and the circulation composition value of the refrigerant, corrects the value of the temperature of the refrigerant on an outlet side based on dT, corrects the value of the pressure of the refrigerant based on dP, and operates the refrigeration cycle. |
| 主权项 |
1. A refrigeration cycle device that circulates a zeotropic refrigerant mixture through a refrigeration cycle in which a compressor, a condenser, an expansion valve, and an evaporator are connected by a refrigerant pipe, comprising:
temperature sensors that individually detect refrigerant temperatures on an inlet side and an outlet side of a portion in which the zeotropic refrigerant mixture discharged from the compressor is in a two-phase gas-liquid state; a pressure sensor that detects a refrigerant pressure on the outlet side; and a correction control unit that corrects at least one of values of the temperatures of the zeotropic refrigerant mixture detected by the temperature sensors and a value of the pressure of the zeotropic refrigerant mixture detected by the pressure sensor, based on the values of the temperatures of the zeotropic refrigerant mixture detected by the temperature sensors and the value of the pressure of the zeotropic refrigerant mixture detected by the pressure sensor. |
