蒸馏水在换热器E009中通过最后一根柱的蒸汽冷凝进行预热，在预热器F004-F001中通过各馏分产生的冷凝液进行预热。在第一柱(E001)被工业蒸汽加热时，水部分蒸发。工业蒸汽通过预热器F001，由疏水阀ST001排出。从顶部产生的纯蒸汽和从底部产生的未蒸发的水进入冷却效果，在较低的压力和温度下重复该过程。纯蒸汽冷凝产生的馏分液进入预热器F002。以相同的方式对所有列重复该过程。最后一种效果产生的蒸汽被冷凝，并与来自交换器E009和E01O预热器的馏分液一起通过冷却和冷却水冷却。1 -单效运行描述由上层冷凝塔的主管道输送，污水通过交换器管侧下降，被来自壳体侧的工业蒸汽加热蒸发。(水蒸汽混合物由主隧道输送到柱的下部，在那里蒸汽与水分离。水沉在底部，从B门流出; the steam goes up at the outside ot tunnel and goes out trom gate F. The condensate passes in the pre-heater shell side and goes out trom the gate G; the teedwater goes into the gate C and goes out trom gate D. DISTILLATE The distillate goes out at 95°C as indicateci in the drawing no. 0969/3; for the correct running of the plant it is necessary that the storage tank and the connecting piping are at a lower height. The conductivity changes from 0.25 to 1 uS / cm., depending on feedwater quality. DISCHARGES: - gas must be free without backpressure - concentrate must be free without backpressure - cooling water can be regenerated and used as hot water - industrial steam condensate better if connected with condensate recovery ring; otherwise, it can be discharged avoiding the connection with gas and concentrate discharge from stili. 3. - CONNECTIONS FEEDWATER pressure quality - consumption must be at least 2 bar more than the one of feeding steam demineralized and filtered, free of amines, organic matters and silica (max conductivity 5 uS) depending on feed steam pressure (see table) COOLING WATER pressure - temperature - quality - consumption 2 bar about are necessary inlet 15°C - outlet 80°C softened depending on feed steam pressure (see table) FEED STEAM The steam must be saturateci, dry, free of oil and other impurities which may scale the exchanger surfaces. The pressure may change from 3 to-8 bar; the plant is provided with a safety valve calibrateci at 9 bar. Consumption: see table ELECTRIC POWER - three-phase tension - auxiliaries tension AIR minimum pressure V380/ Hz50 V220 / Hz50 + 24 Vcc bar 6