Waterway circulating system for thermal isolation type spontaneous combustion testing equipment

The invention discloses a waterway circulating system for thermal isolation type spontaneous combustion testing equipment. The waterway circulating system comprises a water tank and a heater, wherein the water tank is internally divided into a first cavity and a second cavity; the two cavities are communicated through a pipeline and a communication pump; the first cavity is communicated with the input end of the heater through a second pump body and a pipeline; the output end of the heater is communicated with the first cavity through a first pump body and a pipeline; the second cavity is communicated with the input end of a water bath assembly in the thermal isolation type spontaneous combustion testing equipment through a seventh pump body and a pipeline; the output end of the water bath assembly is communicated with the second cavity through a sixth pump body and a pipeline. The waterway circulating system for the thermal isolation type spontaneous combustion testing equipment provided by the invention has the advantages of simple and compact structure, low cost, simplicity and convenience in operation, high automation degree, reduction of labor intensity and experiment cost, and the like.