ANALYSIS OF STRUCTURE AND CHARACTERISTIC ON VAPOR CONDENSER OF VACUUM FREEZING DRYER

The following properties of the vapor condenser used in vacuum freezing dryer system that were interior sturcture, placed position and the vapor condensation characteristic were introduced. Secondly, the design method of the tube vapor condenser outside the dryer whose tubes were placed in rows was gaved. Finally we discussed the process and condition of icing or frosting in the condenser, and expound its advantage and shortcoming separately.