Nordtec Fresh Water Generator datasheet (pdf)
Nordtec supply one, two and three stage Fresh Water Generators with a capacity of 20 to 200 t/24hThe Nordtec Fresh Water Generator utilizes the heat from diesel engine jacket cooling water to produce pure drinkable water by evaporation sea water under high vacuum, enabling the feed water to evaporate at temperatures below 40-50ºC.
Steam can also be used as heat source instead of hot jacket water. The Fresh Water Distiller is based on two Nordtec Titanium Plate Heat Exchangers, one for evaporating the seawater, the other for condensing the fresh water vapour. • Sea water to fresh water • From 20 to 200 t/day one/two and tree step stage • Low running cost - special plate design • Minimum of scaling on the plates The evaporator chamber is kept under vacuum by a water ejector driven by the seawater from the condenser. Part of the heated seawater is used as feed water for the evaporator. On entering the evaporating chamber this water evaporates due to the vacuum.A deflector and built-in de-mister removes any water droplets still present. These fall back into the brine, which is extracted from the sump by an ejector pump. The desalted water vapour is condensed in the plate condenser using cold seawater. A salinometer monitors the salt contents of the water. If the salinity exceeds a specified level ( 1-10 ppm), the water is automatically returned to the feed line.The unit comes skid mounted and is complete with ejectors, sea water and fresh water pumps, salino meter, water meter, control panel, valves and pipe-work. We supply all spares for Nordtec Heat Exchangers.
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