关键词: 制冷剂泄漏模拟, R32制冷剂, 自动化控制

Abstract: According to the requirements of simulated leakage test in Appendix FF (normative appendix) of GB 4706.32-2012 standard, a set of refrigerant leakage simulation test device is designed.. The device is developed based on the flammable refrigerant R32, mainly composed of precision electronic scales, gas analyzers, proportional control valves, pressure gauges, computers and other components. Through automatic control, the device can release refrigerant at a constant speed and quantitatively, read data such as the concentration and weight of the refrigerant in real time, improve the test accuracy, the accuracy and consistency of test results are improved, and it has high promotion value.

Key words: Refrigerant leakage simulation, R32 refrigerant, Automatic control