Concentration makes the concentration of the solvent evaporation solution in the solution increase. The concentration technology is the core support of the falling film evaporator equipment. The domestic Fuerxi high-efficiency energy-saving evaporation equipment is dedicated to the concentration of citrus juice and other transparent juices, which can be kept to the maximum. Handle the original color, aroma, taste and ingredients of the material. For the concentrated citrus juice technology of falling film evaporator equipment, the falling film evaporator features the core technology of multi-effect falling film evaporator and mature market; high evaporation capacity, low evaporation temperature, heating with secondary steam The heat is fully utilized, the evaporation temperature is relatively low; the concentration ratio is large, the falling film evaporation, suitable for materials with low viscosity or high viscosity and good solubility, the liquid liquid is easy to flow and evaporate, it is not easy to scale, the concentration time is short, and the concentration is concentrated. Compared with high; falling film evaporator can be designed into different process according to the characteristics of different materials, and can also be equipped with automatic control system according to different user requirements. 