FILM EVAPORATOR WITH FALLING FILM Russian patent published in 2008 - IPC B01D1/22 

FIELD: chemistry.

SUBSTANCE: falling-film evaporator contains vertical cylindrical body in which cylindrical and internal pipes are mounted. Shells are mounted in circular cavities formed by cylindrical and internal pipes; plates ensuring rotation of the secondary steam are located in the lower part of the shells on their external surface at an angle to the shell axis. Shell length L to the distance between the two adjacent shells L₁ ratio is made equal to L/L₁=0.2 - 2.

EFFECT: prevents mixing of drops with secondary steam condensate and provides processing at the maximal head loads.

3 cl, 4 dwg