Rising Film Evaporator Manufacturer:
A Rising Film Evaporator (RFE) is a vertical shell and tube heat exchanger with a vapor – liquid separator mounted at the top.
The liquid to be concentrated is fed at the bottom of the heated tube bundle. As the liquid feed receives the heat, the vapors generated lift the liquid upwards and push it on the wall as a film. The velocities generated by the vapor lift are quite high, giving good thermal performance. The balance liquid and vapor are separated in the vapor- liquid separator.
'Simple solution for concentration of liquids that are moderately heat sensitive'
Thermosiphon action due to boiling in vertical tubes eliminates the need for circulation pump
Trace quantities of suspended particles in the feed are tolerated
Can operate under reasonable vacuum
Multiple effect arrangement provides steam economy
Concentration of dilute solutions containing water and organic solvents in applications such as plant extracts in water or organic solvents
As a reboiler to distillation column
Economical alternative to falling film evaporator for moderate vacuum and moderately heat sensitive products