Operational AdvantagesFlexibility in Processing
Our construction principle allows the installation of different rotor types using the same evaporator body, hereby facilitating changes in production parameters or products.
Standard proprietary equipment line
Our standard proprietary vertical cylindrical Thin Film Evaporators are available in sizes from 0.12 up to 48 m2 heating surface. Larger sizes are also available as a special design.
Up to 30 % less heating surface for same evaporation capacity
Our standard Thin Film Evaporators are fabricated in clad material, i.e. the product wetted part of the heating surface is made of a thin layer of stainless steel (or other high-grade alloy) clad onto carbon steel (boiler plate), which results in a better heat transfer coefficient compared with Thin Film Evaporators of the same size, made of full stainless steel (or other high-grade alloy).
The reason is the higher thermal conductivity of carbon steel compared with stainless steel, the better overall heat transfer coefficient and therefore, a higher evaporation capacity per m2 of heating surface. Moreover, carbon steel has better mechanical strength properties than stainless steel.
The following example represents the typical case of the evaporation of a low boiling component:
| TFE in clad material | TFE in full material | Material of evaporator body | stainless & carbon steel | stainless steel | Thickness of evaporator body - Stainless steel mm
- Carbon steel mm
| 3
17 | 0
-
| Thermal conductivity - Stainless steel W/mK
- Carbon steel W/mK
| 17,1
48,7 | 17,1
- | Heat transfer coefficient W/m²K through evaporator body | 1.906 | 855 | Heat transfer coefficient W/m²K on product side | 1.200 | 1.200 | Heat transfer coefficient W/m²K on heating side | 7.000 | 7.000 | Overall heat transfer coefficient W/m²K (U-value) | 666 | 466 | Delta T log K | 80 | 80 | Heat duty kW | 1.500 | 1.500 | Heating surface required m² | 28,1 | 40,2 | Saving of heating surface | ca. 30% | |
In addition, smaller clad Thin Film Evaporator have the following additional advantages as far as the complete plant is concerned, giving better hydraulic conditions, higher turbulence, more compact and lighter steel frame construction due to lower weight, less erection work, less height required for dismantling of the rotor, easier maintenance work, less total space requirements, less heat loss, etc.
Extension of previous range of application
With liquid heating medium, a heating temperature of max. 400 °C only was possible in the past. Now with INDUTHERM® -heating developed by Buss-SMS-Canzler, temperatures of more than 600 °C can be reached. to top
|
print page
contact
download area