Design and performance study of condenser for integrated positive pressure evaporation desalination plant

The condenser is the key equipment of the distillation desalination plant. The working performance of the condenser has a great influence on the heat transfer capacity of the whole system and the output of fresh water. In this paper, the effects of parameters such as freshwater flow, pressure, temperature, cooling water temperature and flow rate on condenser performance are studied. The technology of positive pressure condensate condensation is studied to improve the compactness of the device under the condition of condensing to ensure normal operation of the system. The results showed that: (1) In the temperature of 26℃ to 35℃, the condenser heat transfer coefficient with the increase of water temperature rise. (2) The heat transfer coefficient of the condenser increases with the speed of secondary steam velocity. (author)