In industrial production, it is common to encounter the need to process a large amount of liquid and vaporize a large amount of water. To save heating steam, multi effect evaporation can be used. Triple effect evaporation is a commonly used form of multi effect evaporation. It is a system that connects three evaporators first and operates them in series. The first effect uses fresh steam, and then the secondary steam generated by the first effect due to heat evaporation enters the second effect as a heat source for the second effect evaporator. The secondary steam generated by the second effect heated evaporator enters the third effect as a heat source for the third effect evaporator. Equivalent to steam being utilized three times. To achieve the goal of energy conservation and consumption reduction. Reduced steam consumption and also reduced the condensation of secondary steam evaporated. Therefore, the steam consumption ratio of the three effect evaporator is generally around 0.4~0.45.
Triple effect evaporators are widely used in industrial production due to their energy-saving advantages and relatively small equipment investment. The three effect evaporator can be designed as co current evaporation, counter current evaporation, and mixed flow evaporation according to the characteristics of different materials. It can also be designed as a combination of falling film, forced, natural and other forms of evaporation.
Triple effect evaporators are widely used for evaporating chemical wastewater, pharmaceutical wastewater, high salt wastewater, magnesium chemical wastewater, and pesticide wastewater.