Reliability test device and test system suitable for liquid nitrogen cooling equipment

The invention relates to a reliability test device and a reliability test system suitable for liquid nitrogen cooling equipment. The reliability test device suitable for the liquid nitrogen cooling equipment comprises a test box used for placing the liquid nitrogen cooling equipment; a liquid nitrogen tank; the liquid nitrogen pipeline extends into the test box, the liquid inlet end of the liquidnitrogen pipeline is communicated with the liquid nitrogen tank, and the liquid outlet end of the liquid nitrogen pipeline is used for being communicated with liquid nitrogen cooling equipment; the first regulating valve is arranged on the liquid nitrogen pipeline; the flow sensor is arranged on the liquid nitrogen pipeline; and the controller is electrically connected with the control ends of thefirst regulating valve and the flow sensor, and the controller is used for controlling the liquid nitrogen flow of the liquid nitrogen cooling equipment. And the controller controls the opening degree of the first regulating