초록 ▼

A refrigerator controller employs a non-azeotropic mixture refrigerant and a compressor, a four-way valve, an outdoor hear exchanger, a fractionator, an overhead condenser provided on the top of the fractionator, a first flow control valve, a throttle, and an indoor heat exchanger which are connecte

A refrigerator controller employs a non-azeotropic mixture refrigerant and a compressor, a four-way valve, an outdoor hear exchanger, a fractionator, an overhead condenser provided on the top of the fractionator, a first flow control valve, a throttle, and an indoor heat exchanger which are connected in the form of a ring. The controller further employs a circuit at a lower part of the fractionator returning to the bottom of the fractionator through a second flow control valve and a reheater, and a circuit returning from the overhead condenser to the top of the fractionator, thereby controlling the openings of the first and second flow control valves by the output signal of indoor and outdoor heat exchanger temperature detectors, an indoor temperature detector, and an indoor temperature setting device through a flow controller. In this manner, a wider control range of refrigerating capability can be realized. Thus a high separation effect for mixed refrigerant components is obtained while controlling a safe and optimum refrigerant cycle.

대표청구항 ▼

[ What is claimed is:] [1.] A refrigerator controller employing a non-azeotropic refrigerant comprising:a compressor, condenser, fractionator, reheater, flow-control valve, and an evaporator which are ring-connected,means for separating the refrigerant evaporated by said reheater,comparison means fo

[ What is claimed is:] [1.] A refrigerator controller employing a non-azeotropic refrigerant comprising:a compressor, condenser, fractionator, reheater, flow-control valve, and an evaporator which are ring-connected,means for separating the refrigerant evaporated by said reheater,comparison means for comparing temperature of the condenser with a preset condenser-temperature and outputting a control signal indicative of the result of said comparison,memory means for memorizing a plurality of output modes controlling opening of said flow-control valve,selection means for selecting one of the output modes memorized in said memory means responsive to the control signal, andflow-control valve controlling means for controlling the opening of said flow-control valve responsive to the control signal.