Pitch jar heat transfer oil device that heats

The utility model provides a pitch jar heat transfer oil device that heats, it includes jar body, being equipped with the heat conduction oil circulation return circuit in the jar body, the heat conduction oil circulation return circuit includes the oil feed passageway and produces oil passageway and middle part oil circuit passageway, be equipped with an at least duplexure on the oil circuit passageway, be equipped with the pump body on the heat conduction oil circulation return circuit. The utility model discloses solving current pitch, to heat jar programming rate slow excessively, and the thermal losses is serious, leads to production, problem that the processing cost is high.