Rising Film Evaporation - LTek Online
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Rising Film Evaporation
Rising Film Evaporation
Product Code: LTEKCTLB-TTE60-0037

Tenders Description & Specification for Rising Film Evaporation

Rising Film Evaporation

Evaporators are used in process engineering and food technology for increasing the concentration of solutions. The allows the operating behaviour of a rising film evaporator to be investigated. The untreated solution is fed from the feed tank below into the evaporator. The evaporator is a double pipe heat exchanger that is heated by steam. The steam pressure on the casing side is adjusted with a PID controller. A cyclone is installed after the evaporator to separate the evaporated solvent and the concentrated solution. The solvent vapour removed is condensed in a water-cooled condenser and collected in a tank. The concentrated solution can also be collected in a tank or fed back into the evaporator for the concentration to be increased further. Part of the solvent is removed by evaporation, which means that the solution retains a higher concentration of dissolved solids. Film evaporators are used in particular for temperature-sensitive solutions such as milk.
To clean the system while installed, a pump and cleaning nozzles are fitted in the condensate and concentrate tanks.
Common salt and water are the recommended materials for experiments.
The two tanks, the cyclone and the condenser are made of glass for better observation. The system can also be operated under a vacuum to reduce the boiling point of the solvent. All relevant pressures, temperatures and flow rates are measured to allow evaluation and monitoring of the process.

Specification:
Water jet pump and vacuum controller to reduce the evaporation temperature
Separation of concentrated solution and evaporated solvent using glass cyclone
Glass tanks for concentrate and condensate
Measurement of flow rate, pressure and temperature
Steam supply from laboratory network
Glass condenser for condensation of removed solvent vapour
Stainless steel feed tank
Rising film evaporator for increasing the concentration of temperature-sensitive solutions
Stainless steel steam-heated single pipe evaporator
Control valve for adjustment of steam pressure via PID controller.

Technical data
Rising film evaporator
Heat transfer surface: approx. 0,08m2
Length: approx. 1,2m
Control valve: Kvs value: 0,4m3/h
Tanks
Feed: approx. 30L
Concentrate, condensate: approx. 10L each
Water jet pump
Final vacuum: approx. 100mbar
Flow rate: approx. 90L/min
Vacuum controller: -100…0kPa
Condenser for solvent vapour
Heat transfer surface: approx. 0,2m2
Measuring ranges
Flow rate: 2…36L/h; 0…1000L/h
Temperature: 7x 0…170°C
Pressure: -1…1bar; 0…6bar (abs); 0…10bar
230V, 50Hz, 1 phase
230V, 60Hz, 1 phase
120V, 60Hz, 1 phase
Dimensions and weight
LxWxH: 1420x750x2640mm
Weight: approx. 300kg.

Ltekonline are the manufacturers of Rising Film Evaporation used to demonstrate engineering principles in Engineering Colleges, Engineering Schools and Thermal Training Equipment for Engineering Teaching Lab in Universities

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