EVAPORATOR Russian patent published in 1995 - IPC

FIELD: evaporation technology. SUBSTANCE: evaporator has vertical housing with process branch pipes, upper vapor and lower solution chambers, upper, intermediate and lower tube plates, bank of polymeric hoses, upper ends of which are secured in holes of upper tube plate, and linear expansion compensator with stationary and movable members. Intermediate tube plate is provided with film-forming agent. Stationary member of compensator is made in the form of vertical shell mounted in lower solution chamber and filled with liquid up to the top end face. Movable member is made in the form of condensate collecting chamber positioned inside vertical shell and connected with lower tube plate. The chamber communicates with condensate discharge branch pipe by means of flexible springy member. Branch pipe for discharging concentrated solution after evaporation is located below upper end face of vertical shell. EFFECT: improved operational reliability. 2 cl, 3 dwg