Heat transfer system is used in polyimide production

The utility model discloses a heat transfer system is used in polyimide production, including heat transfer device, solvent recovery unit, heat transfer device includes hollow shell, and its inside isequipped with cold air duct, hot air duct, all is equipped with conventional air outlets and inlet, be equipped with metal partition between cold air duct, the hot air duct, be equipped with a plurality of heating nets in the cold air duct, the heating net comprises metal mesh and the sheetmetal around the metal mesh, is equipped with a plurality of heat transfer plates in the hot air duct, solvent recovery unit includes cooling tube, solvent storage tank, solvent takeover, and the cooling tube passes through connecting pipe and hot air duct's exit linkage. The utility model discloses carry out reusing heat to the dumped hot gas flow that has the solvent, effectively realized the regeneration of the energy, preheat the room temperature air, reduced its heating power consumption by a widemargin, reached the purpos