Model surface real-time monitoring device for electric arc heating conduit test

The utility model relates to the technical field of arc heating test, in particular to a model surface real-time monitoring device for arc heating conduit test, which comprises a rectangular spray pipe, a conduit and a model to be tested, the conduit is arranged on one side of the rectangular spray pipe and communicated with the rectangular spray pipe, and the model to be tested is arranged on the upper portion of the conduit. The guide pipe is fixed through the model pressing block, and an endoscope module and a cooling module used for cooling the endoscope module are arranged at the bottom of the guide pipe. Through the synergistic effect of the cooling module and the endoscope module, the high-temperature-resistant endoscope module is used for achieving clear imaging of the surface of a model in a narrow area under the conditions of high temperature and high pressure. The cooling module forms a protective gas film on the surface of the endoscope module, and baking of high-temperature airflow and scouring o