Heat tracing device of fused salt body heat source

The utility model relates to a heat tracing device of a fused salt body heat source, which comprises a hot salt tank, a cold salt tank, and a heat release system and a heat absorption system which are arranged between the hot salt tank and the cold salt tank, a circulating fan is arranged at the top of the hot salt tank, an inlet of the circulating fan is communicated with the interior of the hot salt tank, an outlet of the circulating fan is divided into two paths, one path is connected to a pipeline between the heat release system and the hot salt pump through a first air supply pipe, and the other path is connected to a pipeline between the heat absorption system and the cold salt pump through a second air supply pipe; and an air return pipe is also connected between the tops of the hot salt tank and the cold salt tank. According to the heat tracing device of the fused salt body heat source, circulating heat tracing is carried out through heat stored in air at the top of the hot salt tank, compared with an