The Improvement on the Determining Method of the Optimum Vacuum of Condenser

The existing determining method of the optimum vacuum of condenser is only fit for the condition of that condenser is clean in tubes and vacuum system tightness is up to standard or the performance of air ejector is normal. In this paper, the effect of cleanliness rate on the optimum vacuum of condenser is analysed firstly. Then a new determining method of the optimum vacuum of condenser is proposed, the new method can obtain the accuracy optimum vacuum by means of using synthesis cleanliness factor to incarnate the effect of cleanliness rate, vacuum system tightness and the performance of air ejector on the optimum vacuum.