Refrigeration system fault simulation experiment apparatus

The utility model discloses a refrigeration system fault simulation experiment apparatus comprising a compressor, a condenser, a capillary tube and an evaporator, wherein a first fault simulation adjusting pipeline is connected in series between the condenser and the capillary tube, and the first fault simulation adjusting pipeline is formed through parallel connection between a first normal operation branch and a first fault simulation branch. A first control valve, a liquid storage device and a second control valve are orderly connected in series on the first normal operation branch, and the first fault simulation branch is connected with a first fault simulation control valve in series. The refrigeration system fault simulation experiment apparatus of the utility model is characterized in that fault simulation adjusting pipelines are connected in series in a refrigeration system, common refrigeration faults such as too much or too little refrigerant can be really realized, and the common refrigeration faul