Heat exchanger heat exchange efficiency detection method

The invention relates to the technical field of heat exchange efficiency detection, in particular to a heat exchanger heat exchange efficiency detection method. The method comprising the detection steps that S1, a cold fluid inlet, a cold fluid outlet, a hot fluid inlet and a hot fluid outlet are fixedly sleeved with a test ring; S2, a temperature detector is fixedly installed in the testing ring, the temperature of liquid flowing through the cold fluid inlet, the cold fluid outlet, the hot fluid inlet and the hot fluid outlet is detected through the temperature detector, and data are transmitted to a displayer; and S3,the temperature measurement data is transmitted to a controller through a display, wherein a data calculation module is embedded in the controller, and the controller calculates the heat exchange efficiency according to the transmitted temperature measurement data, and feeds back and transmits a calculation result to the display for displaying. The detection operation is convenient, the detecti