An experimental device for training heat pumps that can be controlled by controlling the refrigeration system to analyze the performance of each heat pump

摘要

The present invention relates to a practice device for a heat pump training, capable of each control method for controlling a freezer to analyze the performance, which comprises: a compressor (110) for compressing a refrigerant and discharging the compressed refrigerant; a condenser (120) for condensing the refrigerant introduced from the compressor (110); an expansion valve (130) for lowering a pressure and a temperature of the refrigerant introduced from the condenser (120); an outdoor fan (140) provided at one side of the condenser (120) to accelerate heat dissipation of the refrigerant; a four-way valve (160) installed at an outlet side of the compressor (110) to change a flow direction of the refrigerant; an evaporator (210) for performing heat exchange by evaporation of the refrigerant introduced from the expansion valve (130); and an indoor fan (220) provided at one side of the evaporator (210) to blow heat-exchanged air. A control unit executes control for a discharge capacity or an input current of the compressor with one control method of on/off control, proportional control, differential control, integral control, proportional differential control, proportional integral control, and proportional differential integral control, in order to perform a practice, displays a temperature, power consumption, or COP detected by a temperature detection unit (150) of the condenser (120) and a temperature detection unit (230) of the evaporator (210), on a monitor, and relatively compares each control method to display the same as a graph.