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Product > Falling film evaporator

Falling film evaporator

 Falling film evaporator
① Applicable range
It is suitable for evaporation and concentration of various materials, especially for materials which are not easy to scale, evaporate easily or have strong thermal sensitivity.
② System components
Evaporation part , separator part , condenser , vacuum system, water discharge system , material in every effect , pumps, working platform , Electrical instrumentation control cabinet and valves, piping system composition.
③ Multi-effect evaporation concentration equipment
When the new steam enters the first effect as a heat source, the second effect is introduced into the second effect, and so on. Multiple evaporators are connected and operated together, that is, a multi-effect evaporation system is formed. In the multi-effect evaporation system, the latent heat of steam can be reused, which can significantly reduce the energy consumption, greatly reduce the energy consumption and improve the thermal efficiency.
Ø  Use the most common evaporative enrichment equipment.
Ø  As the number of potency increases, steam consumption is more economical.
Ø  Although the equipment is less expensive to invest, it consumes a large amount of steam and thus imposes a large energy burden.
Ø  Is suitable for concentrated evaporative crystallization of steam where the price is lower.
④ Main characteristics
Ø  Pump flow rate is relatively small, low installed power, low power consumption.
Ø  Concentration ratio is large, falling film evaporation, concentration time is short.
Ø  Special design can be easily operated to achieve switching efficiency to adapt to different products.
Ø  Evaporator top spraying material or through multiple overflow film device ensures the material and liquid evenly distributed in the evaporator film tube, forming a film shape, which greatly improves the heat transfer coefficient and increases the evaporation rate, thus preventing "dry wall" phenomenon.
Ø  Feed liquid at the bottom of the evaporator vapor liquid separation, into the separator and then separation, strengthening the separation effect.
Ø  Large equipment adopts vertical and vertical structure, with compact structure, small footprint, simple and smooth layout, representing the development aspect of large complete sets of evaporation equipment.
Ø  Equipment with CIP cleaning pipeline, can be cleaned easily .
⑤ Technical Date
Beside this sheet , we also can design according to client different requirement with different proposal .

Model of machine Single effect Double effect  Triple effect Four effect Five effect Six effect Seven Effect Eight effect
Water evaporation capacity --T/ hr 0.5 ~2 1.2~5 3.6~20 12~120 20~180 80~900
Solution feeding concentration -- Brix / % These all depend on the different material
Solution discharge concentration --Brix / %
Steam Pressure --Mpa 0.05~0.1 0.6~0.8 0.09~0.4
Steam consumption --kg / hr 1.13 0.38~0.57 0.28~0.38 0.23~0.28 0.23 0.2 0.175 0.155
Evaporation temperature --℃  
Cooling water circulation using consumption --Tons
( Feeding temp . as 30 ℃ , discharge temp. As 38 ℃)
56 18~28 14~18 12~14 10~12 9~10 8~9 7~8