| 摘要 |
A refrigeration device provided with: a refrigeration cycle (100) in which a compressor (101), a condenser (102), an expansion valve (103), and an evaporator (104) are sequentially connected by tubes and refrigerant is circulated; an expansion tank (107) for recovering refrigerant and lowering the pressure of the refrigeration cycle (100); an oil return tube (108) for returning the refrigerant recovered in the expansion tank (107) and oil accumulated in the expansion tank (107) to the refrigeration cycle (100); and an adjustment valve (106) for controlling refrigerant flow by opening and closing, the adjustment valve being provided to the oil return tube (108). The oil return tube (108) connects the intake side of the compressor (101) and the bottom part of the expansion tank (107). |
