MVR Falling Film Evaporator

The raw material liquid is added from the upper tube box of the heat exchanger, and the material is distributed to each heat exchange tube through the liquid distributor, and a uniform liquid film is formed along the inner wall of the heat exchange tube. The liquid film in the tube is heated by the heating steam in the shell side during the downward flow, and it boils and evaporates while flowing downward rapidly. At the bottom of the heat exchange tube, the material becomes concentrated liquid and secondary steam. The concentrated liquid falls into the lower tube box, and the secondary steam enters the gas-liquid separator. In the gas-liquid separator, the liquid droplets entrained by the secondary steam are removed, and the pure secondary steam is transported from the separator to the compressor. The compressor compresses the secondary steam and transports it to the shell side of the heat exchanger as heating steam for the evaporator heat source. A continuous evaporation process is realized.

1. High heat exchange efficiency;

2. Small footprint;

3. The material stays for a short time, which is not easy to cause material deterioration;

4. Suitable for materials with higher viscosity.

MVR evaporator is suitable for materials with large evaporation volume and low concentration. It can realize the pre-concentration process of MVR evaporation crystallization process, and can evaporate materials with high viscosity, especially suitable for heat-sensitive materials, but not suitable for processing crystallized materials.