Difference between wiped film evaporator and falling film evaporator
Falling film evaporation is to add the liquid material through the upper tube of the heating chamber
of the falling film evaporator. Through the liquid distribution and film forming device, it is evenly
distributed into the heat exchange tubes. Under the action of gravity and vacuum induction and air
flow, it forms a uniform film top down flow.
Wiped film evaporator is a new type of high-efficiency evaporator which is through a rotary wiper
to make a film, and has a high-speed flow, high heat transfer efficiency, short residence time.
1. Compared with falling film evaporator, the wiped film evaporator scrapes the material into a film by a
motor, so the scraping film is more stable, the liquid film is more uniform, and the efficiency is higher
than that of the falling film evaporator.
The falling film material may be affected by various effects during the falling process, and the liquid film
is not uniform, so the evaporation effect is not effective.Short heating time
2. The recovery rate is different, the recovery rate of the wiped film is 95%, and the falling film is 80%.
3. Wiped film evaporator has his irreplaceable advantages: Small vacuum pressure drop | Low operating
temperature | Short heating time | High evaporation rate | Large operational flexibility.
So wiped film evaporator is mainly used for evaporation concentration, desolvation, stripping, reaction,
degassing, deodorization (gas) taste, etc. Contact email@example.com to get technical support.