Description and Specification for Lab Tenders
Multi Effect Evaporator- Engineering Teaching Equipment.
Evaporation deals with the concentration of a non-volatile Solute from a
solution by the removal of required amount of volatile solvent. Usually
the solvent is water. By vaporizing a part of the solvent, useful
product i.e. the concentrated solution or thick liquor is produced and
the Vapour is discarded. Lung tube evaporators are usually used for the
concentration of foamy liquids. The set-up is consists of two
evaporators fitted in series. Each is made up of Stainless Steel tubes
surrounded by a Stainless Steel jacket and fitted with accumulator.
Dilute solution is feed to the first evaporator. Steam from. a steam
generator is supplied to evaporator to concentrate the dilute feed
solution to a desired level. The jacket is fitted with a steam trap and
the condensate is collected at the end of trap. The vapours of volatile
solvent produced in first evaporator are supplied to the second
evaporator. The vapours of volatile solvent are condensed in a shell
& tube type condenser and the balance non-volatile solute collected
in the accumulator is recycled through the evaporator.
