Flow-adjustable refrigerator heat exchanger performance test system

Abstract

The invention relates to a flow-adjustable refrigerator evaporator and condenser performance test system, in particular to a refrigerant supply system and two temperature control units. The refrigerant supply system includes a refrigerant gear pump, a mass flow meter, an electric heating evaporator, a subcooler temperature-controlled electric heater, an auxiliary throttle valve, a test evaporator / condenser, a plate heat exchanger, a reservoir, a filter, and other auxiliary equipment. A plate heat exchanger temperature control unit includes a compressor, a condenser, a reservoir, a drying filter, a throttle valve, a temperature control unit electric heater, and a temperature control unit superheater electric heater. The plate heat exchanger is the compressor of the plate heat exchanger temperature control unit. A reservoir temperature control unit includes a compressor, a condenser, a reservoir, a drying filter, and a throttle valve, wherein the compressor of the unit is arranged in the reservoir of the refrigerant supply system. The refrigerator evaporator and condenser performance test system has the advantages of high controllability, high measurement accuracy, and capability of testing the performance of evaporators / condensers and measuring all refrigerator heat exchangers.

Description

technical field [0001] The invention relates to a performance test system of a refrigerator evaporator and condenser with adjustable flow rate, in particular to an experimental test system for measuring the heat transfer heat and heat transfer coefficient of an air-cooled evaporator and condenser of a refrigerator, belonging to the technical field of refrigeration. Background technique [0002] The refrigerator evaporator and condenser are two important components in the refrigerator refrigeration system, and their performance directly affects the performance of the entire refrigeration system. However, due to the small heat transfer of the air-cooled evaporator and condenser of the refrigerator and the low refrigerant flow rate, the distribution of the air flow field and the flow pattern in the tube have a great influence on the heat transfer performance, and it is difficult to test its performance. Accuracy test results are more difficult. At present, the experiments for ...

AI Technical Summary

Problems solved by technology

However, the flow adjustment is accomplished by the regulating valve through the control system, which is not suitable for the flow adjustment of small flow refrigerator heat exchangers that are not easy to adjust.

Images