| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To properly manage a refrigerant amount in a refrigerant circuit, in refrigeration equipment in which a high-pressure side is brought into supercritical pressure. <P>SOLUTION: In the refrigeration equipment R in which the refrigerant circuit 1 for refrigeration is constituted of a compressor 11, a gas cooler 46, a main throttling means 62A and an evaporator 63A, the high-pressure side is brought into supercritical pressure. The refrigeration equipment also includes an air blower 47 for the gas cooler which air-cools the gas cooler, and a refrigerator unit controller 194 which controls the air blower. In a state that a proper amount of a refrigerant is sealed into the refrigerant circuit for refrigeration, the controller 194 possesses data related to a relationship between the number of revolutions of the air blower for the gas cooler and an outside-air temperature in which the pressure at the high-pressure side of the refrigerant circuit becomes a target value, controls the number of revolutions of the air blower for the gas cooler on the basis of the outside-air temperature, and determines the refrigerant amount in the refrigerant circuit on the basis of the pressure at the high-pressure side of the refrigerant circuit for refrigeration. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
