Double-effect external circulation evaporator for traditional Chinese medicine concentration

The utility model discloses a double-effect external circulation evaporator for traditional Chinese medicine concentration. The double-effect external circulation evaporator comprises a first-effect heater, a first-effect evaporator, a second-effect heater, a second-effect evaporator, a condenser and a solvent recovery tank which are connected in sequence. According to the utility model, liquid medicine entrainment suspended in airflow can be subjected to gas-liquid separation, so that the loss of material liquid is reduced, the condenser is prevented from being blocked by medicine residues carried by steam, and the production efficiency of the evaporation chamber is improved; the condensation efficiency of condensate in the condenser is improved, the condensation cost is reduced, and theproduction cost is reduced; the flow velocity of the steam in the condenser is high, the heat transfer efficiency is improved, and the condensation effect is improved; and two-stage condensation is adopted, so that the conden