falling-film evaporator

falling-film evaporator

[′fȯl·iŋ ‚film i′vap·ə‚rād·ər]
(engineering)
Liquid evaporator system with heated vertical tubes; liquid to be evaporated flows down the inside tube surfaces as a film, evaporating as it flows.
References in periodicals archive ?
The hydrolyzed part of the extraction process is concentrated in a falling-film evaporator, which removes undesirable characteristics lingering in the extract.
Fresh from the adsorbers, Lacy explained, the desorbate is piped to the system's 41-ft recirculated falling-film evaporator, where it disseminates throughout the steam chest; concurrently, make-up water is pumped to the evaporator's upper distribution chamber and gravity-descends through the chest via multiple heat-exchange tubes.