The series equipment of multi-effect adverse current evaporator, multi-effect arranged current evaporator, multi-effect film evaporator are suitable  for evaporating concentration in the industry of corn syrup, fermented sugar juice, juice, soft drink, milk, wine lees, pharmacy, fermentation and high concentration organic or chemical wastewater. They have virtues of energy

saving, be heated quickly, suitable for the higher viscosity materials, high rate of concentration and it can also acquired the deionizer water in good quality to satisfy industry boiler water requirement. They can unit into double-effect, triple-effect, four-effect and five-effect evaporation systems and also can design into waste heat evaporator which use top waste steam of restrain or disc dryer and other low heat value heat source as heat source. Thus, dose of primary steam decrease greatly, so it is easy to reach maximum save energy effect. When waste heat steam sufficient supply we can gain notable economic benefit without using primary steam completely.

 

 

       Materials are uniformly distributed to every tube of the evaporator through the distributor, then the material turn into spirally film flow from the top to the bottom under the presence of gravity and the self evaporation secondary steam, at the same time, heat exchange occurring between material film and the steam of the tube plate, which made the water evaporation in the material. Also, steady temperature difference and heat-transfer area made stable water evaporation. The secondary steam that evaporated from the water can use several times, maximum heat energy utilization, steam consumption reduced greatly, all of which formed the design principle of multiple evaporation.