Buchi Rotavapor R-220 - Principle of Operation

6
2OTAVAPOR R-220
3 Function
&IG0RINCIPLEOFOPERATIONOFTHE2
&UNCTION
!VACUUMROTARYEVAPORATORISUSEDFORQUICKSINGLESTAGE
DISTILLATIONSTHATTREATTHEPRODUCTGENTLY4HEPROCESSISBASED
ONTHEEVAPORATIONANDCONDENSATIONOFSOLVENTSINAROTATING
EVAPORATINGFLASK
)TISPOSSIBLETOWORKUNDERAVACUUMTOENSUREGENTLERTREAT
MENTOFTHEPRODUCTANDINCREASEPRODUCTIVEOUTPUT
$ISTILLATIONMAYBEDONEEITHERUNDERAVACUUMORATATMOS
PHERICPRESSURE
!SECURECLOSENESSISGUARANTEEDINTHELOWPRESSURERANGE
3.1 Principle of Operation
햲 Evaporation Zone
4HESOLVENTINTHEEVAPORATINGFLASKISHEATEDBYTHEHEATING
BATH4HEROTATIONOFTHEEVAPORATINGFLASKENSURESANIN
TENSIVEEXCHANGEOFHEATANDMASSWITHINTHECONTENTSOF
THEFLASKFORMINGATHINFILMOFSOLVENTONTHEINNERSURFACE
OFTHEFLASK4HISCOMBINATIONOFTURBULENCEANDFILMPREVENTS
LOCALOVERHEATINGANDENSURESHIGHDISTILLATIONSPEED
햳 Rotary Drive
4HEDRIVEUNITENSURETHEUNIFORMROTATIONOFTHEEVAPORATING
FLASK
햴 Cooling Zone
4HESOLVENTVAPORFLOWSINTOTHECOOLERATAHIGHSPEED
4HISISWHERETHEENERGYINTHESOLVENTVAPORISTRANSFERRED
TOTHECOOLINGMEDIUMEGWATER4HESOLVENTCONDENSES
햵 Receiving Flask
4HERECEIVINGFLASKISUSEDTOCOLLECTTHECONDENSATE
햶 Vacuum Cover
4HESYSTEMPRESSUREISREDUCEDSOASTOLOWERTHEBOILING
POINTOFTHESOLVENT4HEREDUCTIONINTHERMALLOADINGTHAT
RESULTSENSURESGENTLETREATMENTOFTHEPRODUCTANDOFFERS
ENERGETICADVANTAGES
4HEPRESSUREVACUUMOFDISTILLATIONTHETEMPERATUREOFTHE
HEATINGBATHTHEROTATIONALSPEEDANDTHESIZEOFTHEEVAPO
RATINGFLASKALLAFFECTTHEEVAPORATIONOUTPUT2EFERTO#HAPTER
FORHOWTOSELECTTHEOPTIMUMCONDITIONSOFDISTILLATION
햵
햴
햲
햳
햶